CN102536172A - Sectional production tubular pile for horizontal well - Google Patents
Sectional production tubular pile for horizontal well Download PDFInfo
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- CN102536172A CN102536172A CN2012100426908A CN201210042690A CN102536172A CN 102536172 A CN102536172 A CN 102536172A CN 2012100426908 A CN2012100426908 A CN 2012100426908A CN 201210042690 A CN201210042690 A CN 201210042690A CN 102536172 A CN102536172 A CN 102536172A
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- horizontal well
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- pipe
- tubular pile
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Abstract
The embodiment of the invention discloses a sectional production tubular pile for a horizontal well. The production tubular pile comprises a plurality of flow controllers, an oil tube, a tube shoe, a sliding sleeve, a working barrel, a hanging packer and an insulating packer, wherein the hanging packer which is located in an underground production tube is arranged at the top of the production tubular pile; the insulating packer is arranged in the middle of the production tubular pile; and the tube shoe is arranged at the bottom of the production tubular pile. When the production tubular pile enters into a sand-preventing tubular pile of the horizontal well and the sectional operation of the horizontal well is performed, a packing plug made of special materials is arranged on an outer circle in a preset position of the sand-preventing tubular pile, and the coordination between the insulating packer and the packing plug is utilized to realize the sectional production of the horizontal well. The problem of long-term high water content during the production process of the horizontal well is solved by the production tubular pile; the production efficiency of oil field is increased; the production and treatment of formation water and the discharge of sewage are reduced; and the whole recovery ratio and economic benefit of the oil field are increased.
Description
Technical field
The present invention relates to the oil-gas field development technical field, relate in particular to a kind of horizontal well in segments flow string.
Background technology
At present, in oilfield exploitation procedure, horizontal well is after production after a while; Will soon get into the high moisture production phase, because the existence of limit, end water, or waterflooding extraction; The anisotropic property that adds overlying strata; And factors such as the imperfection of completion technique application and profit characteristic, can cause horizontal well water awl to occur too early, be the production that cost realizes oil gas thereby cause to produce a large amount of water.
In the prior art, the completion mode of horizontal well generally is screen sand control completion and cased hole completion, for the cased hole completion mode, can carry out shutoff behind the well water and handle; And the well of screen sand control completion; Lack effective processing means in the prior art, cause oil well to be in high moisture production status, influence the recovery ratio of oil well control reserves part; Thereby the whole recovery ratio in remote-effects oil field descends the final economic benefit of individual well and Oilfield developing benefit.
Summary of the invention
The embodiment of the invention provides a kind of horizontal well in segments flow string; Can overcome in the horizontal well manufacturing process, the long-term height of existence contains water problems, improves the production efficiency in oil field; Reduce production, processing and the sewage emissions amount of formation water, thereby improve the whole recovery ratio and the economic benefit in oil field.
The objective of the invention is to realize through following technical scheme:
A kind of horizontal well in segments flow string, said flow string comprises a plurality of flow control valves, oil pipe, pipe shoe, sliding sleeve, seating nipple, hanging packer and isolation packer, wherein:
Topmost at said flow string is provided with a hanging packer that is seated in the downhole production sleeve pipe, is provided with an isolation packer at the middle part, and is provided with a pipe shoe at foot;
Be provided with a plurality of flow control valves between said isolation packer and the said pipe shoe, connect with said oil pipe between said a plurality of flow control valves, be used to make the ground layer equilibration feed flow of corresponding net horizontal section;
Be provided with said sliding sleeve and seating nipple between said hanging packer and the said isolation packer, come the open and close state of controlling level well leading portion and back segment through this sliding sleeve and seating nipple;
Said flow string enters in the horizontal well sand control pipe; And the outer annular space at said sand control pipe desired location adopts proprietary material to set up wiper plug when carrying out the horizontal well in segments operation, realizes the segmentation production of said horizontal well through the cooperation between said isolation packer and the said wiper plug.
Topmost at said flow string is provided with a hanging packer that is seated in the downhole production sleeve pipe, specifically comprises:
Hanging packer is sent to the assigned address in the downhole production sleeve pipe through oil pipe or drilling rod and sets at the topmost of said flow string.
Saidly come the open and close state of controlling level well leading portion and back segment, specifically comprise through this sliding sleeve and seating nipple:
Said sliding sleeve is positioned at the top of said seating nipple, connects through oil pipe between them, and said sliding sleeve adopts steel wire or coiled tubing operation to realize open and close function, controls the production status of said horizontal well leading portion; Said seating nipple adopts steel wire or coiled tubing operation to place supporting blanking plug, controls the production status of said horizontal well back segment.
The open hole packer that the wiper plug of the outer annular space of said sand control pipe is provided with when adopting sand control completion replaces.
Technical scheme by the invention described above provides can be found out; Said flow string comprises a plurality of flow control valves, oil pipe, pipe shoe, sliding sleeve, seating nipple, hanging packer and isolation packer; Wherein the topmost at said flow string is provided with a hanging packer that is seated in the downhole production sleeve pipe; Be provided with an isolation packer at the middle part, and be provided with a pipe shoe at foot; Be provided with a plurality of flow control valves between said isolation packer and the said pipe shoe, connect with said oil pipe between said a plurality of flow control valves, be used to make the ground layer equilibration feed flow of corresponding net horizontal section; Be provided with said sliding sleeve and seating nipple between said hanging packer and the said isolation packer, come the open and close state of controlling level well leading portion and back segment through this sliding sleeve and seating nipple; Said flow string enters in the horizontal well sand control pipe; And the outer annular space at said sand control pipe desired location adopts proprietary material to set up wiper plug when carrying out the horizontal well in segments operation, realizes the segmentation production of said horizontal well through the cooperation between said isolation packer and the said wiper plug.Above-mentioned flow string can overcome in the horizontal well manufacturing process, and the long-term height of existence contains water problems, improves the production efficiency in oil field, reduces production, processing and the sewage emissions amount of formation water, thereby improves the whole recovery ratio and the economic benefit in oil field.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention; The accompanying drawing of required use is done to introduce simply in will describing embodiment below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skill in the art; Under the prerequisite of not paying creative work, can also obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 provides the structural representation of horizontal well in segments flow string for the embodiment of the invention.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on embodiments of the invention, those of ordinary skills belong to protection scope of the present invention not making the every other embodiment that is obtained under the creative work prerequisite.
To combine accompanying drawing that the embodiment of the invention is done to describe in detail further below, and be illustrated in figure 1 as the structural representation that the embodiment of the invention provides the horizontal well in segments flow string, flow string mainly comprises among Fig. 1: 1. hanging packer; 2. sliding sleeve; 3. seating nipple; 4. oil pipe (comprising 8 among Fig. 1); 5. isolation packer; 6. flow control valve (comprising 4 among Fig. 1) and 7. pipe shoes; This flow string further comprises: 8. wiper plug; 9. oil reservoir; 10. hypotonic district; 11. screen casing; 12. sand control packer; 13. production casing; 14. top flow string; 15. barefoot interval, the connection and the work relationship of each part mentioned above are specially:
Topmost at flow string according to the invention is provided with a hanging packer 1 that is seated in the downhole production sleeve pipe 13, is provided with an isolation packer 5 at the middle part, and is provided with a pipe shoe 7 at foot.
In concrete the realization, above-mentioned hanging packer 1 concrete the installation is embodied as: through oil pipe or drilling rod hanging packer 1 is sent to the assigned address in the downhole production sleeve pipe 13 and sets at the topmost of said flow string; Slip out of the hand then, trip out oil pipe or the drilling rod sent into, implement operation to accomplish.
Between isolation packer 5 and said pipe shoe 7, be provided with a plurality of flow control valves 6; Connect with said oil pipe 4 between said a plurality of flow control valve 6; Be used to make the ground layer equilibration feed flow of corresponding net horizontal section, 4 flow control valves among the concrete utilization figure carry out the balance feed flow that throttling realizes the stratum.
Be provided with said sliding sleeve 2 and seating nipple 3 between said hanging packer 1 and the said isolation packer 5; Connect through oil pipe 4 between sliding sleeve 2 and the seating nipple 3; In the design and installation operating process; Note avoiding hole deviation excessive, influence the construction of steel wire operation, come the open and close state of controlling level well leading portion and back segment through this sliding sleeve 2 and seating nipple 3 at sliding sleeve 2 and seating nipple 3 places.
In concrete the realization, sliding sleeve 2 is positioned at the top of said seating nipple 3, connects through oil pipe 4 between them, and said sliding sleeve 2 adopts steel wire or coiled tubing operation to realize open and close function, controls the production status of said horizontal well leading portion; Said seating nipple 3 adopts steel wire or coiled tubing operation to place supporting blanking plug, controls the production status of said horizontal well back segment.
Flow string according to the invention is entered in the horizontal well sand control pipe; This horizontal well sand control pipe is between sand control packer 12 and shaft bottom; And the outer annular space at said sand control pipe desired location adopts proprietary material to set up wiper plug 8 when carrying out the horizontal well in segments operation; Realize the segmentation production of said horizontal well through the cooperation between said isolation packer 5 and the said wiper plug 8; Specifically: set the annular space of well section between said said sand control pipe of wiper plug 8 packings and the barefoot interval 15, the position of said this wiper plug 8 of isolation packer 5 packings and the annular space between the said flow string, thus realized the segmentation of horizontal well.
In concrete the realization, the open hole packer that above-mentioned wiper plug 8 is provided with in the time of can adopting sand control completion replaces.
In addition, in Fig. 1: said oil reservoir 9 is reservoirs of oil; Said hypotonic district 10 is used for the setting of wiper plug 8, guarantees that the outer annular space of screen casing post is realized effective packing; Said screen casing 11 is used to filter the sand of stratum output; Said sand control packer 12 be used to hang sand control pipe and seal sand control pipe and production casing 13 between annular space; Said top flow string 14 is used for the manufacture control of oil well; Said barefoot interval 15 is used to open oil reservoir.
In sum; The horizontal well in segments flow string that is provided through the invention described above embodiment; Just can overcome in the horizontal well manufacturing process, the long-term height of existence contains water problems, improves the production efficiency in oil field; Reduce production, processing and the sewage emissions amount of formation water, thereby improve the whole recovery ratio and the economic benefit in oil field.
The above; Be merely the preferable specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technician who is familiar with the present technique field is in the technical scope that the present invention discloses; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (4)
1. a horizontal well in segments flow string is characterized in that, said flow string comprises a plurality of flow control valves, oil pipe, pipe shoe, sliding sleeve, seating nipple, hanging packer and isolation packer, wherein:
Topmost at said flow string is provided with a hanging packer that is seated in the downhole production sleeve pipe, is provided with an isolation packer at the middle part, and is provided with a pipe shoe at foot;
Be provided with a plurality of flow control valves between said isolation packer and the said pipe shoe, connect with said oil pipe between said a plurality of flow control valves, be used to make the ground layer equilibration feed flow of corresponding net horizontal section;
Be provided with said sliding sleeve and seating nipple between said hanging packer and the said isolation packer, come the open and close state of controlling level well leading portion and back segment through this sliding sleeve and seating nipple;
Said flow string enters in the horizontal well sand control pipe; And the outer annular space at said sand control pipe desired location adopts proprietary material to set up wiper plug when carrying out the horizontal well in segments operation, realizes the segmentation production of said horizontal well through the cooperation between said isolation packer and the said wiper plug.
2. horizontal well in segments flow string as claimed in claim 1 is characterized in that, is provided with a hanging packer that is seated in the downhole production sleeve pipe at the topmost of said flow string, specifically comprises:
Hanging packer is sent to the assigned address in the downhole production sleeve pipe through oil pipe or drilling rod and sets at the topmost of said flow string.
3. horizontal well in segments flow string as claimed in claim 1 is characterized in that, saidly comes the open and close state of controlling level well leading portion and back segment through this sliding sleeve and seating nipple, specifically comprises:
Said sliding sleeve is positioned at the top of said seating nipple, connects through oil pipe between them, and said sliding sleeve adopts steel wire or coiled tubing operation to realize open and close function, controls the production status of said horizontal well leading portion; Said seating nipple adopts steel wire or coiled tubing operation to place supporting blanking plug, controls the production status of said horizontal well back segment.
4. horizontal well in segments flow string as claimed in claim 1 is characterized in that,
The open hole packer that the wiper plug of the outer annular space of said sand control pipe is provided with when adopting sand control completion replaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100426908A CN102536172A (en) | 2012-02-23 | 2012-02-23 | Sectional production tubular pile for horizontal well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100426908A CN102536172A (en) | 2012-02-23 | 2012-02-23 | Sectional production tubular pile for horizontal well |
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| CN102536172A true CN102536172A (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012100426908A Pending CN102536172A (en) | 2012-02-23 | 2012-02-23 | Sectional production tubular pile for horizontal well |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817594A (en) * | 2012-09-06 | 2012-12-12 | 中国石油化工股份有限公司 | Drainage gas recovery method and device of horizontal well |
| CN103122760A (en) * | 2013-03-01 | 2013-05-29 | 中国海洋石油总公司 | Completion pipe string for suspending bottom water coning |
| CN105863588A (en) * | 2016-04-28 | 2016-08-17 | 重庆科技学院 | Balanced injection and recovery method of thickened oil thermal recovery horizontal well |
Citations (5)
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|---|---|---|---|---|
| US6497290B1 (en) * | 1995-07-25 | 2002-12-24 | John G. Misselbrook | Method and apparatus using coiled-in-coiled tubing |
| CN201165866Y (en) * | 2008-03-04 | 2008-12-17 | 北京华油油气技术开发有限公司 | Horizontal well division and combination extracting pipe column |
| CN101864921A (en) * | 2010-06-11 | 2010-10-20 | 大港油田集团有限责任公司 | Well completion and oil production string of horizontal well and well completion and oil production processes thereof |
| CN201972676U (en) * | 2010-09-17 | 2011-09-14 | 石云夫 | Stratum feed flow control tubular column for horizontal well |
| CN202645511U (en) * | 2012-02-23 | 2013-01-02 | 石云夫 | Horizontal well segmental production string |
-
2012
- 2012-02-23 CN CN2012100426908A patent/CN102536172A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6497290B1 (en) * | 1995-07-25 | 2002-12-24 | John G. Misselbrook | Method and apparatus using coiled-in-coiled tubing |
| CN201165866Y (en) * | 2008-03-04 | 2008-12-17 | 北京华油油气技术开发有限公司 | Horizontal well division and combination extracting pipe column |
| CN101864921A (en) * | 2010-06-11 | 2010-10-20 | 大港油田集团有限责任公司 | Well completion and oil production string of horizontal well and well completion and oil production processes thereof |
| CN201972676U (en) * | 2010-09-17 | 2011-09-14 | 石云夫 | Stratum feed flow control tubular column for horizontal well |
| CN202645511U (en) * | 2012-02-23 | 2013-01-02 | 石云夫 | Horizontal well segmental production string |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817594A (en) * | 2012-09-06 | 2012-12-12 | 中国石油化工股份有限公司 | Drainage gas recovery method and device of horizontal well |
| CN103122760A (en) * | 2013-03-01 | 2013-05-29 | 中国海洋石油总公司 | Completion pipe string for suspending bottom water coning |
| CN103122760B (en) * | 2013-03-01 | 2015-06-10 | 中国海洋石油总公司 | Completion pipe string for suspending bottom water coning |
| CN105863588A (en) * | 2016-04-28 | 2016-08-17 | 重庆科技学院 | Balanced injection and recovery method of thickened oil thermal recovery horizontal well |
| CN105863588B (en) * | 2016-04-28 | 2019-07-26 | 重庆科技学院 | A kind of heavy crude heat extraction horizontal well equilibrium note mining method |
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Application publication date: 20120704 |