CN104481514A - Special joint for overall alignment calibration of CalScan small-diameter pressure gauge - Google Patents
Special joint for overall alignment calibration of CalScan small-diameter pressure gauge Download PDFInfo
- Publication number
- CN104481514A CN104481514A CN201410782099.5A CN201410782099A CN104481514A CN 104481514 A CN104481514 A CN 104481514A CN 201410782099 A CN201410782099 A CN 201410782099A CN 104481514 A CN104481514 A CN 104481514A
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- CN
- China
- Prior art keywords
- calibration
- pressure gauge
- calscan
- special joint
- minor diameter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure
- G01L27/002—Calibrating, i.e. establishing true relation between transducer output value and value to be measured, zeroing, linearising or span error determination
- G01L27/005—Apparatus for calibrating pressure sensors
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
Abstract
The invention provides a special joint for overall alignment calibration of a CalScan small-diameter pressure gauge. The special joint comprises an alignment calibration barrel, wherein the alignment calibration barrel is a hollow cylinder; the upper part of the alignment calibration barrel is hermetically connected with a seal pressing cap which forms a sealed space together with the hollow alignment calibration barrel; the seal pressing cap is provided with internal threads; the internal threads are internally provided with an insert hole; the lower part of the alignment calibration barrel is hermetically connected with a lower joint; the insert hole is reserved in the internal threads of the seal pressing cap and a data line can be inserted into the insert hole, so that real-time data acquisition is realized. The special joint can be connected with a DH50000-II full-automatic alignment calibration system pressure transmission pipeline; by virtue of matched use of the alignment calibration barrel, the seal pressing cap and a small-diameter pressure gauge, a sealed pressure-bearing environment is supplied to the small-diameter pressure gauge; the insert hole is reserved in the internal threads of the seal pressing cap and the data line can be inserted into the insert hole, so that real-time data acquisition is realized; by virtue of simple maintenance, the special joint can be repeatedly used.
Description
Technical field
The present invention relates to oil gas field pressure test, bottom pressure monitoring, deliverability testing technique, particularly the overall calibration special joint of a kind of CalScan minor diameter pressure gauge.
Background technology
River celebrating probing long celebrating down-hole technical operation company has just bought the small diameter electronic pressure gauge of the Mole series of branched CalScan Company as far back as 2009, this import minor diameter pressure gauge diameter is 0.75 inch (19mm), temperature range 0 DEG C ~+150 DEG C, pressure range 0 ~ 110MPa, is mainly used in the work such as bottom pressure monitoring.According to " SY/T 6640-2012 electronic type pressure bomb calibration steps " requirement, electronic type pressure bomb at least needs calibration once could continue to use every year.Owing to also there is no specialized designs at present both at home and abroad and being applied to the manometric special calibration joint of calibrating CalScan company Mole series minor diameter, cause minor diameter pressure gauge calibration difficulty, when needs calibration, minor diameter must be sent back to external genuine, need to use special tool in genuine, the sensor in minor diameter pressure gauge is disassembled, then calibration is carried out to its sensor, cause the calibration cycle long, calibration high in cost of production unfavorable factor, affects the construction progress of Oil/gas Well production scene.
But the manometric calibration work of the type minor diameter can not be completed high-efficiency high-quality, high temperature calibration can not be completed simultaneously, and the special calibration joint of the monolithic that pressure sensor need not be dismantled.
Summary of the invention
External genuine calibration can only be beamed back at present in order to overcome minor diameter pressure gauge, and sensor can only be pulled down carry out calibration, this two large problems of overall calibration cannot be carried out.
The invention provides the manometric calibration of a kind of CalScan minor diameter needs one can complete high temperature calibration, need not dismantle again the special calibration joint of monolithic of pressure sensor, complete the manometric calibration work of the type minor diameter for high-efficiency high-quality.
Technical scheme of the present invention is:
The overall calibration special joint of a kind of CalScan minor diameter pressure gauge, comprise calibration cylinder, described mark packing element is hollow cylinder, the upper seal of described mark packing element is connected with seal pressure cap, described seal pressure cap and hollow mark packing element form a confined space, described seal pressure cap is provided with jack, and described jack is communicated with calibration cylinder inside; The below of described calibration cylinder is sealedly connected with lower contact.
Described seal pressure cap is provided with external screw thread, and external screw thread and calibration cylinder are tightly connected.
Described calibration cylinder is connected by sealing ring with lower contact.
Described a kind of CalScan minor diameter pressure gauge overall calibration special joint length is 24-26cm.
The external diameter of described calibration cylinder (2) is 50-56mm, and internal diameter is not less than 20mm.
Described a kind of CalScan minor diameter pressure gauge overall calibration special joint operating temperature 0 DEG C ~+200 DEG C; Pressure-bearing is greater than 137MPa.
beneficial effect of the present invention is:
The present invention by calibration cylinder, seal pressure cap and minor diameter pressure gauge tripartite with the use of, for minor diameter pressure gauge provides airtight pressure-bearing environment; Leave jack in seal pressure cap internal thread in the present invention, pluggable data wire realizes real-time data acquisition.Through simple maintenance, the present invention is reusable.Not only solving minor diameter pressure gauge cannot the problem of calibration outside genuine, achieve the manometric overall calibration of minor diameter simultaneously, do not need to dismantle minor diameter pressure gauge again, save censorship and the time and efforts needed for dismounting, greatly save the expense of carrying out needed for calibration to minor diameter pressure gauge simultaneously.
Accompanying drawing explanation
Fig. 1 is a kind of CalScan minor diameter pressure gauge overall calibration special joint structural representation.
In figure, Reference numeral is as follows: 1, seal pressure cap; 2, calibration cylinder; 3, lower contact; 4, jack; 5, external screw thread.
Detailed description of the invention
Embodiment 1:
External genuine calibration can only be beamed back at present in order to overcome minor diameter pressure gauge, and sensor can only be pulled down carry out calibration, this two large problems of overall calibration cannot be carried out.
The invention provides the overall calibration special joint of a kind of CalScan minor diameter pressure gauge, one can complete high temperature calibration, the special calibration joint of monolithic of pressure sensor need not be dismantled again, complete the manometric calibration work of the type minor diameter for high-efficiency high-quality.Not only solving minor diameter pressure gauge cannot the problem of calibration outside genuine, achieve the manometric overall calibration of minor diameter simultaneously, do not need to dismantle minor diameter pressure gauge again, save censorship and the time and efforts needed for dismounting, greatly save the expense of carrying out needed for calibration to minor diameter pressure gauge simultaneously.
As inscribed the overall calibration special joint of a kind of CalScan minor diameter pressure gauge shown in 1, comprise calibration cylinder 2, described mark packing element 2 is hollow cylinder, the upper seal of described mark packing element 2 is connected with seal pressure cap 1, described seal pressure cap 1 forms a confined space with hollow mark packing element 2, described seal pressure cap 1 is provided with jack 4, and jack 4 is communicated with calibration cylinder 2 inside; The below of described calibration cylinder 2 is sealedly connected with lower contact 3.
The overall calibration special joint of a kind of CalScan minor diameter pressure gauge that the present embodiment provides is made up of lower contact 3, calibration cylinder 2, seal pressure cap 1, and lower contact 3 can be connected with the full-automatic Calibration System pressure transmission pipeline of DH 50000-II.
Described calibration cylinder 2 is connected by sealing ring with lower contact 3.Such guarantee calibration cylinder 2 inside is sealing state, can provide the environment of pressure-bearing.
Calibration cylinder 2 inside for holding minor diameter pressure gauge, and provides pressure environment for minor diameter pressure gauge.
Described seal pressure cap 1 is provided with external screw thread 5, and external screw thread 5 and calibration cylinder 2 are tightly connected.
Described seal pressure cap 1 is provided with jack 4 and external screw thread 5, and external screw thread 5 and calibration cylinder 2 are tightly connected; The pluggable data wire of jack 4 realizes real-time data acquisition.
Seal pressure cap 1 devises external screw thread 5, the jack 4 of seal pressure cap 1 inside can be connected with CalScan Mole series small diameter electronic pressure gauge, can realize the real-time communication of pressure count certificate and the Real-time Collection of Calibration Data; External screw thread 5 seals with calibration cylinder 1 and is connected, for minor diameter pressure gauge provides airtight pressure-bearing environment.The material of this overall calibration special joint adopts 17-4PH, through Carburization Treatment, the voltage endurance capability of this calibration joint is had and significantly improves.
Embodiment 2:
On basis based on embodiment 1, the length of the overall calibration special joint of a kind of CalScan minor diameter pressure gauge is 24-26cm.
Calibration cylinder external diameter is 50-56mm, and internal diameter is not less than 20mm.
Running parameter: operating temperature 0 DEG C ~+200 DEG C; Pressure-bearing is greater than 137MPa.
Application mode of the present invention is:
1. before pressure gauge calibration, finish changing seal pressure cap 1 and lower contact 3 Shang Ge road sealing ring, the overall calibration special joint of overall CalScan minor diameter pressure gauge that the present embodiment provides is connected in the full-automatic Calibration System pressure transmission pipeline of DH 50000-II.
2. toward oiling in calibration cylinder 2, till filling calibration cylinder 2.
3. CalScan minor diameter pressure gauge is connected on the jack 4 of seal pressure cap 1 inside, tightens and rear seal pressure cap 1 is connected to calibration cylinder 2, be plugged data wire.
4. according to the pressure step set and temperature step, calibration is carried out to minor diameter pressure gauge.
5., after calibration terminates, the overall calibration special joint of this CalScan minor diameter pressure gauge that the lower the present embodiment of dismounting provides, take out pressure gauge, then, maintenance clean to this calibration joint, next calibration continues to use.
Like this, reusable through simple maintenance the present invention.
More than exemplifying is only illustrate of the present invention, does not form the restriction to protection scope of the present invention, everyly all belongs within protection scope of the present invention with the same or analogous design of the present invention.
Claims (6)
1. the overall calibration special joint of CalScan minor diameter pressure gauge, it is characterized in that: comprise calibration cylinder (2), described mark packing element (2) is hollow cylinder, the upper seal of described mark packing element (2) is connected with seal pressure cap (1), described seal pressure cap (1) and hollow mark packing element (2) form a confined space, described seal pressure cap (1) is provided with jack (4), and described jack (4) is communicated with calibration cylinder (2) inside; The below of described calibration cylinder (2) is sealedly connected with lower contact (3).
2. the overall calibration special joint of a kind of CalScan minor diameter pressure gauge according to claim 1, it is characterized in that: described seal pressure cap (1) is provided with external screw thread (5), external screw thread (5) and calibration cylinder (2) are tightly connected.
3. the overall calibration special joint of a kind of CalScan minor diameter pressure gauge according to claim 1, is characterized in that: described calibration cylinder (2) is connected by sealing ring with lower contact (3).
4. the overall calibration special joint of a kind of CalScan minor diameter pressure gauge according to claim 1, is characterized in that: described a kind of CalScan minor diameter pressure gauge overall calibration special joint length is 24-26cm.
5. the overall calibration special joint of a kind of CalScan minor diameter pressure gauge according to claim 1, is characterized in that: the external diameter of described calibration cylinder (2) is 50-56mm, and internal diameter is not less than 20mm.
6. the overall calibration special joint of a kind of CalScan minor diameter pressure gauge according to claim 1, is characterized in that: described a kind of CalScan minor diameter pressure gauge overall calibration special joint operating temperature 0 DEG C ~+200 DEG C; Pressure-bearing is greater than 137MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410782099.5A CN104481514A (en) | 2014-12-17 | 2014-12-17 | Special joint for overall alignment calibration of CalScan small-diameter pressure gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410782099.5A CN104481514A (en) | 2014-12-17 | 2014-12-17 | Special joint for overall alignment calibration of CalScan small-diameter pressure gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104481514A true CN104481514A (en) | 2015-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410782099.5A Pending CN104481514A (en) | 2014-12-17 | 2014-12-17 | Special joint for overall alignment calibration of CalScan small-diameter pressure gauge |
Country Status (1)
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| CN (1) | CN104481514A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87204683U (en) * | 1987-10-12 | 1988-05-04 | 株洲硬质合金厂 | Tester for safety valve and pressure gauge |
| CN200941077Y (en) * | 2006-08-30 | 2007-08-29 | 北京康斯特仪表科技有限公司 | Gas pressure meter parity checker |
| US20070251293A1 (en) * | 2004-12-14 | 2007-11-01 | Arnold Paul C | Method and apparatus for storing vacuum gauge calibration parameters and measurement data on a vacuum gauge structure |
| KR20100123147A (en) * | 2009-05-14 | 2010-11-24 | 케이아이에스티(주) | Pressure calibrator using air and one-touch connecting filter therefor |
| CN103728098A (en) * | 2013-12-23 | 2014-04-16 | 重庆布莱迪仪器仪表有限公司 | Verification connector of pressure gage |
| CN204511426U (en) * | 2014-12-17 | 2015-07-29 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | The overall calibration special joint of a kind of CalScan minor diameter pressure gauge |
-
2014
- 2014-12-17 CN CN201410782099.5A patent/CN104481514A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87204683U (en) * | 1987-10-12 | 1988-05-04 | 株洲硬质合金厂 | Tester for safety valve and pressure gauge |
| US20070251293A1 (en) * | 2004-12-14 | 2007-11-01 | Arnold Paul C | Method and apparatus for storing vacuum gauge calibration parameters and measurement data on a vacuum gauge structure |
| CN200941077Y (en) * | 2006-08-30 | 2007-08-29 | 北京康斯特仪表科技有限公司 | Gas pressure meter parity checker |
| KR20100123147A (en) * | 2009-05-14 | 2010-11-24 | 케이아이에스티(주) | Pressure calibrator using air and one-touch connecting filter therefor |
| CN103728098A (en) * | 2013-12-23 | 2014-04-16 | 重庆布莱迪仪器仪表有限公司 | Verification connector of pressure gage |
| CN204511426U (en) * | 2014-12-17 | 2015-07-29 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | The overall calibration special joint of a kind of CalScan minor diameter pressure gauge |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20150401 |