CN101499330B - Cable - Google Patents
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- CN101499330B CN101499330B CN 200810008633 CN200810008633A CN101499330B CN 101499330 B CN101499330 B CN 101499330B CN 200810008633 CN200810008633 CN 200810008633 CN 200810008633 A CN200810008633 A CN 200810008633A CN 101499330 B CN101499330 B CN 101499330B
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Abstract
A cable comprises a plurality of insulating main leads extending along the cable and at least one insulating auxiliary lead. A pore space is limited between every two adjacent main leads in the insulating main leads, and the main leads have almost the same diameter. Each of the main leads comprises an electrical power lead and a telemetry lead. The diameter of each auxiliary lead is less than that of each main lead, and at least part of each auxiliary lead is embedded in the pore space. The cable also comprises at least one optical fiber cable.
Description
Technical field
The present invention is broadly directed to a kind of cable, for example (as example) multiconductor cable that use in the electric wire logging operation of oil field, that be used for the geo-logical terrain of the contiguous drilling well of analysis.
Background technology
Usually, comprise geo-logical terrain in the soil of oil and/or petroleum gas and have the ability characteristics that can connect with the stratum in order to comprise these products.For example, the stratum that comprises oil or petroleum gas has higher resistance coefficient than the stratum that comprises water.The stratum that mainly comprises sandstone or lime stone can comprise oil or petroleum gas.The stratum that mainly comprises shale (it also coats oil bearing bed) has higher porosity than the stratum of sandstone or lime stone, because the particle size of shale is very little, its is difficult to mobile oil or gas that is captured in wherein.Therefore, logging operation carries out before the oil well of being everlasting is finished, so that the various characteristics of the geo-logical terrain of measure neighbor oil well, helping to determine the position of oil reservoir and/or petroleum gas layer, and determine to be captured in the amount of oil in the stratum and/or petroleum gas and easily remove these oil and/or petroleum gas from the stratum.
Therefore, after boring completion, usually come some determining section of measuring well with the electric instrument that is called logging tool.The electric wire instrument is a kind of logging tool.The electric wire instrument that is called on the cable of " electric wire cable " is delegated to the shaft bottom, is used for the characteristic of measurement geo-logical terrain when instrument passes oil well.The electric wire cable makes the electric wire instrument be electrically connected with the equipment on ground, and provides support structure to instrument when instrument during the logging operation is transferred in the well or rise from well.
Cable typically comprises to electric wire instrument transmitting electric power with from the instrument unit of logging well earthward and transmits the basic facilities of telemetry.For example, because bottom hole temperature (BHT) and pressure can reach 500 ° of Fahrenheit temperature (F) and 25000 pounds/square inchs (psi), cable typically is designed to bear the extreme environment condition.Because well is just by drilled darker, increase for electric power and the remote measurement demand of cable.Therefore, because this active demand aspect the signal to noise ratio (SNR) and the supply high electric power conveying in shaft bottom of maintenance or increase telemetered signal, has proposed challenge to cable design person.
Summary of the invention
In an embodiment of the present invention, cable comprises a plurality of insulation main traverse lines and at least one the insulation pilot wire that extends along cable.Described a plurality of insulation main traverse line limits interstitial space between adjacent main traverse line, described a plurality of main traverse lines have roughly the same diameter.Main traverse line comprises electrical lead and at least one remote measurement wire.Preferably, the diameter of each pilot wire is less than the diameter of each main traverse line, and each pilot wire is embedded in the interstitial space at least in part.Described cable also can comprise at least one the armor line layer that surrounds main traverse line and pilot wire.
In another embodiment of the present invention, cable comprises: insulation main traverse line, at least one insulation pilot wire, inside and outside armor line layer, polymeric material and overcoat.The insulation main traverse line extends along cable, and the remote measurement main traverse line extends along cable, and limits interstitial space between the adjacent main traverse line.Insulation main traverse line and remote measurement wire have roughly the same diameter.The diameter of each insulation pilot wire extends less than the diameter of each main traverse line and along the longitudinal axis of cable.Each pilot wire is embedded in the hole at least in part.Inner armor line layer surrounds insulation main traverse line, remote measurement main traverse line and pilot wire.Outside armor line layer surrounds inner armor line layer.Polymeric material is arranged in the interstitial space that forms between the interstitial space that forms between inner armor line layer and the outside armor line layer and inner armor line layer and the insulated conductor.Polymeric material forms continuous binder course, this continuous binder course isolation and wrap up inner armor line layer and outside armor line layer.Overcoat is combined around the polymeric material setting and with polymeric material.
In another embodiment of the present invention, method is included in cable is provided in the well; Comprise a plurality of insulation main traverse lines in cable, these a plurality of insulation main traverse lines limit interstitial space and have roughly the same diameter between adjacent main traverse line.Main traverse line comprises electrical lead and remote measurement wire.The method comprises at least one insulation pilot wire is set, and the diameter of this at least one insulation pilot wire is less than the diameter of main traverse line and be embedded at least in part in the hole that main traverse line limits; With usefulness armor shielding case packing cable.
Description of drawings
According to detailed description, accompanying drawing and claim, advantage of the present invention and further feature will become apparent.
Fig. 1 is the schematic diagram of the wireline logging detection system (wireline-based loggingacquisition system) of embodiments of the invention;
Fig. 2 is the cutaway view along the cable of the line 2-2 of Fig. 1 of embodiments of the invention;
Fig. 3 is the cutaway view of main electrical lead of the cable of embodiments of the invention;
Fig. 4 is the cutaway view of main remote measurement wire of the cable of embodiments of the invention;
Fig. 5 is the cutaway view of pilot wire of the cable of embodiments of the invention;
Fig. 6 describe to be used for the cable of Fig. 1 and signal level and the frequency curve of traditional cable;
Fig. 7,9-12 are the cutaway views of the cable of an alternative embodiment of the invention; With
Fig. 8 is the stereogram that the cable of part is partly dissectd in the description of an alternative embodiment of the invention.
Embodiment
Fig. 1 shows the wireline logging detection system 10 of embodiments of the invention.System 10 comprises: wireline logging instrument or instrument 28, and it was arranged in (as shown in the figure) or unpacked drilling well 20 of packing; With cable 24, it structurally and electricity ground stube cable logging tool 28 and ground installation.As described here, cable 24 comprises electric power and remote measurement wire, is used for transmitting electric power and telemetry between ground installation and instrument 28.The well that system 10 is measured can be missile silo or submarine well.
As shown in Figure 1, cable 24 can be by truck 15 configurations, and truck 15 comprises the cable reel, and the wireline tool 28 relevant with logging operation in the drilling well 20 transferred or risen to the cable reel.Logging tool 28 can comprise the combination of gamma ray emission device/receiver, caliper, resistance measurement device, neutron howitzer/receiver or these devices, and this only as an example.
With reference to figure 2, compared with prior art, cable 24 is characterised in that according to an embodiment of the invention: provide relatively high power delivery capabilities, relatively high structural integrity degree, relatively high intensity, relatively low noise floor (noise floor) and relative wide telemetry communication bandwidth.In order to realize these, cable 24 comprises heavy gauge (that is, major diameter) main traverse line: two main traverse lines 60 that size is similar, for transmit high electric power to the shaft bottom; With main remote measurement wire 80, its diameter and each main traverse line 60 are roughly the same.By using relative heavy gauge main traverse line, therefore can in the given section of cable 24, fill in more electric conducting material, for example copper.Therefore, for example, compare with seven cables (heptacable) of standard, the power delivery capabilities of cable 24 increases.Further, three relatively large diameter main traverse lines are stranding together, for cable 24 provides the mechanically stable basis.
Cable 24 also comprises pilot wire 70 (for example, three pilot wires 70), and its size is less than leader cable 60 and 80, for example is used for transmitting three-phase power (seeing Fig. 1) to logging tool 18.Alternatively, pilot wire 70 can be used for transmitting low electric power, for example DC or Monophase electric power, and for example one of them pilot wire 70 can be used as spare part.Change as another kind, one of them pilot wire 70 can be used as the electric power return route, and this electric power return route is communicated with the shaft bottom through main electrical lead 60.Therefore, can realize many application of pilot wire 70, this is in the protection range of claims.Equally, the combination between main electrical lead 60 and the auxiliary power wire 70 can be used for producing telemetry mode alternately.
As shown in Figure 2, according to embodiments of the invention, main traverse line 60 and 80 axial axis around cable 24 are arranged to triangular construction, and this arranges the interstitial space 40 that limits between every pair of adjacent main traverse line 60,80.According to some embodiments of the present invention, each pilot wire 70 that size is less preferably is enclosed within the interstitial space 40 at least in part.Alternatively, main traverse line 60 and 80 is twined by a pilot wire 70 at least.
Preferably, each in main remote measurement wire 80, main electrical lead 60 and the pilot wire 70 comprises the plain conductor that is wrapped in the insulating case.Can use any suitable plain conductor.The example of plain conductor comprises copper, nickel coating copper or aluminium, but plain conductor is not limited to this.Although the plain conductor of right quantity can be used for forming these insulated conductors, be preferably about 60 plain conductors of 1-and be used to specific insulated conductor, more preferably can use 7,19 or 37 plain conductors.
Insulating case can comprise any in the large-scale suitable material.Suitably the example of insulating case material comprises: polytetrafluoroethylene-perfluoro-methyl ether polymer (polytetrafluoroethylene-perfluoromethylvinylether polymer, MFA), perfluor alcoxyl alkane polymer (perfluoro-alkoxyalkane polymer, PFA), polytetrafluoroethylene (polytetrafluoroethylene polymer, PTFE), ethylene-tetrafluoroethylene polymer (ethylene-tetrafluoroethylene polymer, ETFE), ethylene-propylene copolymer (ethylene-propylene copolymer, EPC), polyethylene (4-methyl-1-pentene) (can be from Mitsui Chemicals, Inc. obtains TPX
), other polyolefin, other fluoropolymer, polyethylene aryl ether ketone polymer (polyaryletherether ketone polymer, PEEK), polyphenylene sulfide polymer (polyphenylene sulfide polymer, PPS), modification polyphenylene sulfide polymer (modified polyphenylene sulfide polymer), polyether-ketone polymer (polyether ketone polymer, PEK), maleic anhydride polymer-modified (maleic anhydridemodified polymers), Parmax
The SRP polymer is (by Mississippi PolymerTechnologies, Inc is based on alternative polyethylene (1, the 4-phenylene) the structure manufacturing adds strength polymer certainly, aforementioned alternative polyethylene (1, the 4-phenylene) each phenylene in the structure has from the replacement R yl of organic group on a large scale) etc., and their mixture.
As shown in Figure 3, main electrical lead 60 has diameter D
1And comprising the interior metal wire 62 at the center that is positioned at wire 60, this interior metal wire 62 extends along the longitudinal axis of main electrical lead 60.Interior metal wire 62 is insulated cover 63 and coats.
With reference to figure 4, in some embodiments of the invention, main remote measurement wire 80 is a kind of concentric conductors, and it comprises the plain conductor 82 of inner SMIS, and plain conductor 82 extends along the longitudinal axis of main remote measurement wire 80.Although the interior metal core of remote measurement main traverse line 80 is less than the interior metal core of the main electrical lead 60 of correspondence, main remote measurement wire 80 comprises relatively larger insulating case 84, thereby makes the diameter of winner's remote measurement wire 80 (be called " D in Fig. 4
2") with the diameter D of main electrical lead 60
1(seeing Fig. 3) is roughly the same.
Equally as shown in Figure 4, main remote measurement wire 80 comprises external metallization shielding case 86 (for example copper or copper alloy), the interference that the interior metal wire 82 that is used for shielded conductor 80 produces with the electric power transfer that for example prevents through main electrical lead 60 and auxiliary power wire 70.
Again with reference to figure 2, according to embodiments of the invention, cable 24 comprises multilayer armor electric wire shell or shielding case 50, the main traverse line 60,80 and pilot wire 70 of its parcel cable 24.In this, according to some embodiments of the present invention, armor shielding case 50 comprises inner armor electric wire packing 50b and the second external helicoid packing 50a, inner armor electric wire packing 50b around the cable longitudinal axis at the upper spiral extension of first direction (for example counterclockwise), the second external helicoid packing 50a around the longitudinal axis of cable at the upper spiral extension of opposite packing direction (for example clockwise direction).Therefore, in some embodiments of the invention, packing 50a and 50b are the armor line layers that backpitch ground twines.The electric wire that is used to form armor shielding case 50 can be stainless steel electric wire, metal cords, bimetallic electric wire, steel wire rope or nonmetal electric wire, and these only are some examples.Therefore, can in the protection range of claims, realize various variations.
As an example, suitable polymeric material comprises: EPDM, polyolefin (for example EPC or polypropylene), other polyolefin, polyethylene aryl ether ketone (polyaryletherether ketone polymer, PEEK), polyvinyl ethyl ether ketone (polyaryl ether ketone, PEK), polyphenylene sulfides (polyphenylene sulfide, PPS), modification polyphenylene sulfides (modified polyphenylenesulfide), ethylene-tetrafluoroethylene polymer (ethylene-tetrafluoroethylene polymer, ETFE), polyethylene polymer (1, the 4-phenylene), polytetrafluoroethylene (polytetrafluoroethylenepolymer, PTFE), perfluor alcoxyl alkane polymer (perfluoro-alkoxyalkane polymer, PFA), PEP (FEP) polymer, polytetrafluoroethylene-perfluoro-methyl ether polymer (polytetrafluoroethylene-perfluoromethylvinylether polymer, MFA), Parmax
, and their mixture.Other spendable polymeric material can comprise: the vinyl tetrafluoro ethylene polymer, perfluor alcoxyl polymer, fluorinated vinyl acrylic polymers (fluorinated ethylenepropylene polymers), polytetrafluoroethylene-perfluoro-methyl ether polymer, and their mixture.
According to some embodiments of the present invention, the cable 24 that comprises armor shielding case 50 can have the overall diameter (overall diameter) less than 2.5 centimetres, for example in specific but nonrestrictive example about 1.4 centimetres.Further, according to some embodiments of the present invention, cable 24 can have about 10.1 centimetres minimum bending radius.In some embodiments of the invention, cable 24 can have other suitable overall diameter, bending stiffness and other physical characteristic, and this is obvious for those skilled in the art.
In the certain benefits of cable 24, cable 24 has the coaxial remote measurement performance of high mechanical stability, high power transmission capacity and shielding.Mechanical stability is provided by Basic Design, because three large compositions, namely main traverse line 60 and 80 is not easy to move under pressure, therefore is not easy to make less wire, and for example other order wire of pilot wire 70 and cable 24 suffers damage.Because larger main electrical lead 60 is used for larger electricity needs, to compare with the electrical lead in the traditional cable, wire 60 has low resistance, lower cable loss and the darker degree of depth of arrival.Note that lower electric power transfer can be undertaken by relatively low auxiliary power wire 70.As above mentioned, in some embodiments of the invention, all these wires 70 can be configured to provide three-phase power.
According to some embodiments of the present invention, Fig. 6 shows signal level and the frequency curve 130 of the telemetering channel that cable 24 provides.As shown in curve 130, frequency response is advanced with the frequency that is significantly higher than frequency curve 120, and frequency curve 120 for example shows seven cable telemetering channels.As a result, for example, the data capacity 132 of cable 24 is significantly higher than the data capacity 122 of seven cables.
Fig. 7 shows the cutaway view of the cable 150 of embodiments of the invention.Cable 150 is similar to cable 24 designs, and identical mark represents same or similar element.Yet different from cable 24 is: cable 150 comprises and is arranged on filler rod (for example fluoropolymer bar) or the optical fiber 154 in the main electrical lead 60; And cable 150 also comprises along the longitudinal axis of cable 150 and is arranged between the main traverse line 60,80 filler rod or optical fiber 158 in the middle interstitial space that forms.Therefore, according to embodiments of the invention, optical fiber or filler rod element can be arranged on the center of cable 150, maybe can be integrated into main traverse line 60,80 or pilot wire 70 in.
Fig. 8 shows the stereogram of the cable 170 of embodiments of the invention.Cable 170 is similar to cable 150 (referring to Fig. 7) design, and identical mark represents same or similar element.Yet different from cable 150 is: cable 170 comprises single filler rod or the optical fiber 158 that extends along the longitudinal axis of cable 170, but is not included in optical fiber or filler rod in any wire.As shown in Figure 8, cable 170 can have be arranged on wire and the polymeric material 100 with 176 and the external metallization shielding case 86 that is used for main remote measurement wire 80.Cable 170 can also comprise bed course or overlap 94, the layer that is for example formed by adhesive tape and polymeric material, its parcel main traverse line 60,80 and pilot wire 70.
Fig. 9 shows the cutaway view of the cable 200 of embodiments of the invention.Usually, cable 200 is similar to cable 24 designs of Fig. 2, and same reference numbers represents to be equal to or similar components.Yet cable 200 has main remote measurement wire 202, and this main remote measurement wire 202 has replaced the main remote measurement wire 80 of cable 24.Usually, main remote measurement wire 202 has the diameter roughly the same with the diameter of two main electrical leads, but different from the remote measurement wire 80 of cable 24, and wire 202 adopts twisting or quadrature remote measurement (quad orquadrature telemetr).In this, wire 202 has four remote measurement wires 210, and these four remote measurement wires 210 are by metal shielding on every side 86 location and shielding, and this is arranged and allows quadrature remote measurement transmission channel.
Main remote measurement wire 202 can also comprise filler rod 225 and drain wire 220, drain wire 220 can and wire 210 between the space outerpace place that forms filler rod alternately.
The shielding design is favourable for the application that needs high s/n ratio and low frequency.Alternatively, if need to than low signal-to-noise ratio and upper frequency, then can ignore shielding.
Figure 10 shows the cutaway view of the cable 250 of embodiments of the invention.Usually, cable 250 is similar to cable 200 designs, and same reference numbers represents to be equal to or similar components.Yet different from cable 200 is: cable 250 comprises the optical cable 254 that extends along the center of a main electrical lead 60.Equally, optical cable 265 can extend along the longitudinal axis of cable 250.Further, the Centre panel 220 of the cable 200 in the main remote measurement wire 202 is replaced by the optical fiber 260 among Figure 10.
Figure 11 shows the cutaway view of cable 300, and its design is similar to the cable 24 of Fig. 2, and identical reference marker represents to be equal to or similar components.Yet the main remote measurement wire 80 of cable 24 is replaced by main remote measurement wire 301 in the cable 300.Main remote measurement wire 301 comprises that 310, two remote measurement wires 310 of two remote measurement wires can have the diameter roughly the same with each auxiliary power wire 70.Remote measurement wire 310 is arranged to twisted-pair feeder structure (twisted-pair configuration).Main remote measurement wire 301 can also comprise drain wire (drain wires) or filler rod 312, drain wire (drain wires) or filler rod 312 be arranged on wire 310 outsides and the interstitial space that between wire 310, forms in.
In some embodiments of the invention, insulating power wire, main traverse line and/or pilot wire are the layered dielectric insulated conductors (stacked dielectric insulatedconductors) with electric field suppression characteristic, U.S. Patent No. 6 such as people such as Mydur, 600, employed wire in the cable of describing in 108, so it all is attached to herein.This layered dielectric insulated conductor generally includes the first the second insulation jacket layer that insulate jacket layer and arrange around the first insulation jacket layer that arranges around plain conductor, the first insulation jacket layer is around having the first relative dielectric constant, and the second insulation jacket layer has the second relative dielectric constant less than the first relative dielectric constant.The first relative dielectric constant is preferably in about scope of 2.5～about 10.0, and the second relative dielectric constant is preferably in about scope of 1.8～about 5.0.
As mentioned above, according to embodiments of the invention, cable, for example cable 24,150, and 170,200 and 250 comprise parcel main traverse line 60,80 and at least one armor electric wire (armorwires) layer of pilot wire 70, for example armor electric wire packing 50a or 50b.The armor electric wire can roughly be made by any high tensile strength material, this high tensile strength material comprises the plow steel (galvanized improvedplow steel) of electroplating improvement, the metal stratified mixture of bimetallic form, steel alloy etc., but high tensile strength material is not limited to this.In some embodiments of the invention, cable comprises the inside armor line layer that wraps up wire and the outside armor line layer that centers on inner armor line layer.Protectiveness is polymer coated to can be applicable to per share armor electric wire and is used for anticorrosionly, or even improves the armor electric wire that arranges in the interstitial space and the associativity between the polymeric material.
As used herein, term " in conjunction with (bonding) " refers to comprise chemical bond, mechanical bond or their combination.The example of coating material can comprise: PEP (FEP) polymer, ethylene-tetrafluoroethylene polymer (Tefzel
), perfluor alcoxyl alkane polymer (perfluoro-alkoxyalkane polymer, PFA), polytetrafluoroethylene polymer (polytetrafluoroethylene polymer, PTFE), polytetrafluoroethylene-perfluoro-methyl ether polymer (polytetrafluoroethylene-perfluoromethylvinylether polymer, MFA), polyethylene aryl ether ketone (polyaryletherether ketone polymer, PEEK), or has a polyvinyl ethyl ether ketone (polyaryl ether ketone of fluoropolymer, PEK), polyphenylene sulfides (polyphenylene sulfide, PPS), the composition of PPS and PTFE, latex or rubber coating etc.But coating material is not limited to this.
Each armor electric wire, for example armor electric wire packing 50a or 50b also can apply the associativity between anti-rotten material or raising armor electric wire and the polymeric material.The suitable coating material of nonrestrictive example comprises brass, copper alloy etc.Apply the armor electric wire and can comprise the cords (cords) such as cotton tyre cord (tire cords).Although can use coating or the cladding material of any thickness, can use about 10～100 microns thickness as example.
In some cables, for example cable 24,150, and 170,200 and 250, polymeric material 100 polymeric materials such as grade can be arranged in the interstitial space that forms between the interstitial space that forms between the armor electric wire and armor line layer and the insulated conductor.What can believe is, the advantage that polymeric material is set in whole armor electric wire interstitial space or unfilled annular gap is: prevent that dangerous gas well gas from entering and by these spaces or gap and upwards advance towards lower pressure region, it can burn even explosion hazard occur in this lower pressure region.
In the cable of embodiments of the invention, for example cable 24,150,170,200 and 250, the armor electric wire preferably partly or wholly is aggregated sealing such as material 100 polymeric materials such as grade, because these polymeric materials are fully filled all interstitial spaces, therefore eliminate any gas movable passageway.Further; by polymeric material is integrated in the interstitial space, provide the moment of two armor lines of balance layer cable, because outside armor electric wire is locked in place and protected by the polymeric jacket of hard armor; do not need larger diameter at skin, therefore alleviated the equalising torque problem.Therefore, owing to having filled interstitial space, corrosive well fluids downhole can not be permeated into and be assembled between the armor electric wire.Polymeric material also can be used as the filter of many corrosive fluids.By exposing armor electric wire and the gathering that prevents corrosive fluid, can be increased significantly the useful life of cable with minimizing.
When being combined into one, by filling the interstitial space between the armor electric wire with polymeric material and separating inner armor electric wire and outside armor electric wire, can reduce point between a armor electric wire-contact, therefore improved intensity, prolong fatigue life, avoided simultaneously armor electric wire premature corrosion.Because interstitial space is filled, so cable core is by fully containing firmly, and has eliminated wriggling, the result, and cable size is more stable, and the cable extensibility significantly reduces.The anti-wriggling polymeric material that uses in the embodiments of the invention can make the core wriggling minimize both ways: first aspect, lock together by making polymeric material and armor line layer, and greatly reduced distortion of the cable; Second aspect, polymeric material also can be eliminated any annular space that cable core may be wriggled into.
The cable of embodiments of the invention, for example cable 24,150, and 170,200 and 250, can improve the problem that isolation armor designing institute runs into, because wrap the serially combination of polymeric material of armor electric wire, it is not easy to throw off from the armor electric wire.Because said method allows the armor electric wire scope (93-98% metal) that maintains the standard, therefore to compare with typical isolation armor design (caged armor design), application of polymeric materials can not sacrificed cable intensity.
The polymeric material of polymeric material 100 grades of using in the some embodiments of the present invention can be from insulated conductor to armor line layer arranges continuously and contiguously, or even the extensible periphery that exceeds, therefore form the polymerization cover that wraps up the armor electric wire fully.The polymeric material and the armor electric wire coating material that form cover are selected alternatively, thereby so that the armor electric wire is not joined to polymerization cover and not mobile in the polymerization cover.
For example, in some embodiments of the invention, polymeric material 100 polymeric materials such as grade can not have when enough mechanical properties of bearing high-tensile strength or high pressure on the bunch of cables during tension, like this, can further comprise short fiber.Yet available suitable fiber provides the characteristic of enough bearing this power, and the example of this optical fiber comprises carbon fibre, glass fibre, ceramic fibre, Kevlar
Fiber, Vectran
Fiber, quartz, millimicro carbon or any material that other is fit to.Further, be higher than significantly the friction that polymeric material is only arranged because comprise the friction of the polymeric material of short fiber, do not have the overcoat of the polymeric material of short fiber can be around the periphery setting of cable, so that the outer surface of cable has low frictional behavior.
Be used to form the polymeric material of the embodiments of the invention of polymerization cover or other cable jacket, such as polymeric material 100 etc., also can comprise the particle that improves the cable wear resistence, because cable is arranged in the drilling well.The example of suitable particle comprises pottery
TM(Ceramer
TM), the combination in any of boron nitride, PTFE, graphite, millimicro particle (for example millimicro soil, millimicro tripoli, millimicro charcoal, nanofibers or other suitable nano material) or above-mentioned particle, but particle is not limited to this.
The cable of embodiments of the invention, for example cable 24,150, and 170,200 and 250 also can have the armor electric wire that more than one replacement applies the armor electric wire.Coating can comprise the material identical with above-mentioned polymeric material.This helps to improve equalising torque by the intensity, weight or the size that reduce outside armor line layer, also improves the associativity of polymeric material and outside armor line layer simultaneously.
The polymeric material that uses in the material of the formation insulating barrier of embodiments of the invention and the cable can comprise in material blends that also a kind of fluoropolymer additive (fluoropolymer additive) or multiple fluoropolymer additive are in order to form cable.This additive is favourable for producing high-quality long cable with high manufacturing speed.Suitable fluoropolymer additive comprises :] polytetrafluoroethylene, perfluor alcoxyl polymer (perfluoroalkoxy polymer), ethylene tetrafluoroethylene copolymer (ethylene tetrafluoroethylene copolymer), PEP (fluorinatedethylene propylene), perfluorinate polyethylene (perfluorinated poly), ethylene-propylene, and their combination in any.
Fluoropolymer is also: the copolymer of tetrafluoroethene and ethene and optional the 3rd comonomer (thirdcomonomer), the copolymer of tetrafluoroethene and vinylidene fluoride and optional the 3rd comonomer, the copolymer of chlorotrifluoroethylene and ethene and optional the 3rd comonomer, the copolymer of HFPO (hexafluoropropylene) and ethene and optional the 3rd comonomer, and the copolymer of HFPO (hexafluoropropylene) and vinylidene fluoride and optional the 3rd comonomer.But fluoropolymer is not limited to this.
Fluoropolymer additive should have the melting temperature that is lower than temperature of processing, and melting temperature is preferably in about 200 ℃～350 ℃ scope.In order to prepare mixture, fluoropolymer additive is mixed with insulating case or polymeric material.Fluoropolymer additive can be attached in the mixture based on 5% or less percentage by weight of the total amount of mixture, be preferably mixture total amount 1% or less, more preferably be mixture total amount 0.75% or less.
The element that uses in the cable of embodiments of the invention can be located with zero layout angle or with any layout angle with respect to center or the axis of cable.Usually, center part is positioned at zero layout angle, surrounds simultaneously the strength member of center part and spirally locates with the layout angle of expectation around center part.
According to some embodiments of the present invention, cable can be included at least one filler rod in the armor line layer, and for example filler rod 158,220, and 225 and 312 etc.In this cable, one or more armor electric wires are replaced by the filler rod element, and aforementioned filler rod can comprise the long synthetic fibers of multi beam or long fibre line.Long synthetic fibers or long fibre line can be coated with any suitable polymer, comprise those above-mentioned polymeric materials.Polymer can be expressed on this fiber or the line so that the associativity of raising and polymerization cover material.This can further provide ejection resistance.Equally, because the filler rod element has replaced outside armor electric wire, the equalising torque between inner armor line layer and the outside armor line layer can further improve.
In the cable of embodiments of the invention, for example cable 24,150, and 170,200 and 250, can comprise the armor electric wire that returns electric wire as electric current, it provides the grounded circuit of bottom equipment or instrument.The armor electric wire can be used for electric current and returns, and shock hazard is minimized.In some embodiments of the invention, at least one the armor electric wire in the polymeric material insulation isolation ground floor armor electric wire, so they can be used as electric current and return electric wire.
Disclosed cable, for example cable 24,150, and 170,200 and 250, can use in order in the drilling well infiltration geo-logical terrain of air inclusion or oil storage, carry out operation with drilling rig.The cable logging tool (well logging tools) that can be used for interconnecting, such as the power supply equipment and the DATA REASONING apparatus interconnection that make outside gamma ray emission device/receiver, caliper, resistance measurement device, earthquake device (seismic devices), neutron howitzer/receiver etc. and the one or more wells, and other any suitable application.
Cable disclosed herein, for example cable 24,150, and 170,200 and 250, also be used for wireless application, for example Seismic Operation comprises seabed and underground Seismic Operation.As another example, cable disclosed herein can be used as the permanent monitoring cable of drilling and well completion (well completion).Therefore, cable disclosed herein has many variations and application, and this is included in the protection range of claims.
Although the embodiment according to limited quantity has illustrated the present invention, those skilled in the art can know various modifications and variations according to content disclosed by the invention.Owing to do not break away from the spirit and scope of the present invention, so claims containing all such modifications and variation.
Claims (19)
1. cable that limits longitudinal axis and can be used for well comprises:
Along the main electrical lead of a plurality of insulation of cable extension and the shielding remote measurement main traverse line that extends along cable, between adjacent main traverse line, limit the hole hole, described insulation main traverse line has approximately identical diameter with described remote measurement main traverse line, and described remote measurement main traverse line comprises a plurality of remote measurement wires;
A plurality of insulation pilot wires, the diameter of each described insulation pilot wire is less than each the diameter in the described main traverse line, and each described insulation pilot wire extends along the longitudinal axis of cable, and each described pilot wire is embedded in the hole hole at least in part;
Inner armor line layer, described inner armor line layer surrounds described insulation main traverse line, described remote measurement main traverse line and described insulation pilot wire;
Surround the outside armor line layer of described inner armor line layer, be limited with the hole hole between described main traverse line, described pilot wire and the described armor line;
Polymeric material, described polymeric material is arranged in the hole hole that forms between the described hole hole that forms between inner armor line and the outside armor line and inner armor line layer and the insulated conductor, described polymeric material forms continuous binder course, and this continuous binder course is separated and wrapped up described inner armor line layer and described outside armor line layer; With
Overcoat, described overcoat is combined around described polymeric material setting and with described polymeric material.
2. according to claim 1 cable, wherein said main electrical lead and described remote measurement main traverse line are arranged with triangle pattern around the longitudinal axis of cable.
3. according to claim 1 cable, wherein cable comprises electric wire, is installed in cable or geological data exploration cable in the completion.
4. according to claim 1 cable, wherein at least one described remote measurement wire comprises concentric conductor.
5. according to claim 1 cable, wherein said a plurality of insulation pilot wires comprise three pilot wires.
6. according to claim 1 cable, wherein the overall diameter of cable is approximately less than 2.5 centimetres.
7. according to claim 1 cable, wherein cable has about 10.1 centimetres minimum bending radius.
8. according to claim 1 cable also comprises at least one filler rod that extends along cable.
9. according to claim 8 cable, wherein said at least one filler rod are embedded in the hole hole that main traverse line forms at least in part.
10. according to claim 1 cable also comprises at least one filler rod, extends at least one in main electrical lead and remote measurement main traverse line of described at least one filler rod.
11. cable according to claim 1 also comprises around the adhesive tape of main traverse line and pilot wire.
12. cable according to claim 1, wherein at least one described remote measurement main traverse line comprises insulating case, is packaged in a plurality of plain conductors in the insulating case and is arranged on metal level on the outer surface of insulating case.
13. cable according to claim 1, wherein said pilot wire comprise three insulation pilot wires, these three insulation pilot wires are configured to supply three-phase electricity.
14. cable according to claim 1 also comprises at least one drain wire that is arranged in the shielding remote measurement main traverse line.
15. cable according to claim 1 also comprises at least one filler rod that is arranged in the described remote measurement main traverse line.
16. cable according to claim 1 also comprises the optical fiber in one that is positioned in described main electrical lead and the described remote measurement main traverse line.
17. cable according to claim 1, wherein said remote measurement main traverse line comprises shielded conductor, in order to improve the signal to noise ratio related with the remote measurement main traverse line.
18. cable according to claim 1, the electric power transfer of wherein said shielding remote measurement main traverse line and cable is kept apart substantially.
19. cable according to claim 1, the overall diameter of wherein said cable are about 1.4 centimetres.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810008633 CN101499330B (en) | 2008-02-01 | 2008-02-01 | Cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810008633 CN101499330B (en) | 2008-02-01 | 2008-02-01 | Cable |
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| Publication Number | Publication Date |
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| CN101499330A CN101499330A (en) | 2009-08-05 |
| CN101499330B true CN101499330B (en) | 2013-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200810008633 Expired - Fee Related CN101499330B (en) | 2008-02-01 | 2008-02-01 | Cable |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102737779A (en) * | 2012-07-05 | 2012-10-17 | 中天科技海缆有限公司 | Intensive undersea optical cable applicable to remote intelligent monitoring system |
| CN103352656B (en) * | 2013-08-05 | 2015-08-12 | 四川宏华石油设备有限公司 | A kind of well system |
| CN103794279B (en) * | 2014-01-16 | 2016-06-08 | 安徽国华电缆集团有限公司 | A kind of high s/n ratio power cable |
| CN103779016A (en) * | 2014-01-16 | 2014-05-07 | 安徽国华电缆集团有限公司 | Anti-interference power cable |
| CN103794288B (en) * | 2014-01-16 | 2016-06-01 | 安徽国华电缆集团有限公司 | A kind of lightning-proof power cable |
| CN103794283B (en) * | 2014-01-21 | 2016-06-08 | 安徽国华电缆集团有限公司 | A kind of light power cable |
| CN103871597B (en) * | 2014-02-25 | 2016-08-03 | 安徽绿洲电缆有限公司 | A kind of seabed specialized power cable |
| US10101481B2 (en) * | 2014-10-03 | 2018-10-16 | Pgs Geophysical As | Floodable optical apparatus, methods and systems |
| CN110957069B (en) * | 2019-12-17 | 2022-07-12 | 江西圣塔电缆科技有限公司 | Load-bearing detection cable |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3115542A (en) * | 1961-05-02 | 1963-12-24 | Pirelli | Submarine electric cables |
| US3639674A (en) * | 1970-06-25 | 1972-02-01 | Belden Corp | Shielded cable |
| US5495547A (en) * | 1995-04-12 | 1996-02-27 | Western Atlas International, Inc. | Combination fiber-optic/electrical conductor well logging cable |
| US6297455B1 (en) * | 2000-05-19 | 2001-10-02 | Schkumberger Technology Corporation | Wireline cable |
| CN1543694A (en) * | 2001-06-20 | 2004-11-03 | �����ա��ڵ� | Conductor system |
-
2008
- 2008-02-01 CN CN 200810008633 patent/CN101499330B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3115542A (en) * | 1961-05-02 | 1963-12-24 | Pirelli | Submarine electric cables |
| US3639674A (en) * | 1970-06-25 | 1972-02-01 | Belden Corp | Shielded cable |
| US5495547A (en) * | 1995-04-12 | 1996-02-27 | Western Atlas International, Inc. | Combination fiber-optic/electrical conductor well logging cable |
| US6297455B1 (en) * | 2000-05-19 | 2001-10-02 | Schkumberger Technology Corporation | Wireline cable |
| CN1543694A (en) * | 2001-06-20 | 2004-11-03 | �����ա��ڵ� | Conductor system |
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| CN101499330A (en) | 2009-08-05 |
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