CN204175289U - Wellhead pressure measuring device for water injection well - Google Patents
Wellhead pressure measuring device for water injection well Download PDFInfo
- Publication number
- CN204175289U CN204175289U CN201420538157.5U CN201420538157U CN204175289U CN 204175289 U CN204175289 U CN 204175289U CN 201420538157 U CN201420538157 U CN 201420538157U CN 204175289 U CN204175289 U CN 204175289U
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- Prior art keywords
- injection well
- water injection
- wellhead
- oil connection
- pressure
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- 238000002347 injection Methods 0.000 title claims abstract description 57
- 239000007924 injection Substances 0.000 title claims abstract description 57
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 56
- 238000012360 testing method Methods 0.000 claims abstract description 60
- 238000004891 communication Methods 0.000 claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 claims abstract description 19
- 238000009530 blood pressure measurement Methods 0.000 claims abstract description 8
- 238000009529 body temperature measurement Methods 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 9
- 239000000463 material Substances 0.000 description 7
- 238000007789 sealing Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000004078 waterproofing Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 239000002332 oil field water Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000004881 precipitation hardening Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The utility model provides a water injection well head pressure measurement device, including being used for the oil pipe joint of being connected with production tree water injection well test gate, the interpolation of oil pipe joint is equipped with the electron pressure meter, the lower extreme that oil pipe connects with electron pressure meter contact department is equipped with a plurality of holes of permeating water, the electron pressure meter is equipped with the communication plug interface, offer the interface hole that is used for holding the communication plug interface on the oil pipe joint. The utility model provides a water injection well head pressure measurement device installs whole device on production tree water injection well test gate, carries out the continuous monitoring and the storage of pressure, temperature, can realize data playback and continuous real-time supervision in the testing process.
Description
Technical field
The utility model relates to manometric technique, particularly relates to a kind of wellhead of water injection well pressure tester.
Background technology
At present, pressure test is carried out to water injection well in oil fields, most employing down-hole pressure fall-off test, underground pressure reducing well testing generally adopts memory-type deep-well electron pressure to count deep-well to carry out conventional pressure fall-off test, instrument steel wire system hangs and goes into the well, when testing, the collection of the SCM system in instrument and the common completed well downforce of various sensor and temperature, and be stored in internal memory with digital quantity form, after process to be tested completes, again pressure gauge is returned to ground, be connected with pressure gauge with the data readback instrument of special supporting development, the reception of data is carried out by software and hardware interface communication, playback and process.
Adopt down-hole pressure fall-off test because pressure gauge is in down-hole, test data need store in memory, to be tested complete after just can carry out data processing, operating personnel rule of thumb can only predict the testing time, then pressure gauge is risen to read test result behind ground, be difficult to realize Real-Time Monitoring, thus cause test result inaccurate.
Utility model content
For above-mentioned defect of the prior art, the utility model provides a kind of wellhead of water injection well pressure tester, realizes carrying out Real-Time Monitoring to water injection well in oil fields, improves the degree of accuracy of test result.
A kind of wellhead of water injection well pressure tester, comprise the oil connection for being connected with production tree injection well testing gate, electronic pressure gauge is inserted with in described oil connection, lower end and the described electronic pressure gauge contact position of described oil connection are provided with some permeable holes, described electronic pressure gauge is provided with communication plug interface, described oil connection offers the interface holes for holding communication plug interface.
Further, the upper end of described oil connection is connected with battery compartment, is provided with the battery for powering to electronic pressure gauge in described battery compartment.
Further, described electronic pressure gauge is provided with integrated circuit board, described integrated circuit board is provided with pressure sensor, temperature pick up, and the pressure measurement circuit to be connected with described pressure sensor and the temperature measurement circuit be connected with described temperature pick up, and the power supply circuits be connected with pressure sensor, temperature pick up and battery respectively.
Further, the lower end, outside of described oil connection offers the threaded portion for being connected with described production tree injection well testing gate.
Further, described threaded portion is the tapered tread that parent diameter reduces successively from the upper end of described oil connection to lower end.
Further, the top of described oil connection offers the blind hole for being connected with described battery compartment, and described battery compartment to be inserted in described blind hole and to be spirally connected with described blind hole sidewall.
Further, the blind hole at described oil connection top is shoulder hole, the upper hole internal diameter of described shoulder hole is greater than bottom hole internal diameter, described battery compartment lower outside wall is provided with outward extending annular flange portion, described annular flange portion snaps in the upper hole of described shoulder hole, and described annular flange portion and described shoulder hole match.
Further, be provided with waterproof washer below described annular flange portion, described waterproof washer snaps in the upper hole of described shoulder hole.
Further, the external surface of described oil connection offers some anti-slip tanks.
Further, the locating flange for positioning electronic pressure gauge is provided with in the blind hole of described oil connection top.
Further, described communication plug interface is positioned at the side of described electronic pressure gauge.
Further, the interface holes top on described oil connection is provided with waterproof cover.
Further, the lower end of described oil connection is provided with plug, and described some permeable holes are opened on described plug.
The wellhead of water injection well pressure tester that the utility model provides, be connected with the test strobe being positioned at wellhead of water injection well by oil connection, the electronic pressure gauge arranged in tubing interface carries out the continuous monitoring of pressure, and by communication plug interface that electronic pressure gauge is arranged by the real-time data transmission that records to computer and by the retaking of a year or grade software simulating data readback on computer, thus realize carrying out Real-Time Monitoring and accurate pressure measurement to water injection well in oil fields, improve the degree of accuracy of test result.
Accompanying drawing explanation
Fig. 1 is the structure sectional view of the utility model wellhead of water injection well pressure tester one embodiment;
Fig. 2 is the structural representation after the utility model wellhead of water injection well pressure tester is installed;
Fig. 3 is the structural representation of the battery compartment in the utility model wellhead of water injection well pressure tester one embodiment;
Fig. 4 is the structural representation of waterproof cover in the utility model wellhead of water injection well pressure tester one embodiment.
Reference numeral:
1-oil connection 2-electronic pressure gauge 3-permeable hole
4-communication plug interface 5-interface holes 6-battery compartment
7-battery 8-blind hole 9-annular flange portion
10-waterproof washer 11-locating flange 12-anti-slip tank
13-waterproof cover 14-plug
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Be illustrated in figure 1 the structural representation of the utility model wellhead of water injection well pressure tester one embodiment, with reference to accompanying drawing 1, a kind of wellhead of water injection well pressure tester, comprise the oil connection 1 for being connected with production tree injection well testing gate, electronic pressure gauge 2 is inserted with in oil connection 1, lower end and electronic pressure gauge 2 contact position of oil connection 1 are provided with some permeable holes 3, and electronic pressure gauge 2 is provided with communication plug interface 4, oil connection 1 offer the interface holes 5 for holding communication plug interface 4.
Particularly, oil connection 1 can be made up of stainless steel material, the shape of oil connection 1 is preferably cylindrical, electronic pressure gauge 2 can select pressure test scope at the pressure gauge of 0 ~ 60MPa, in this electronic pressure gauge 2, there is data memory module, permeable hole 3 is opened in lower end and electronic pressure gauge 2 contact position of oil connection 1, water in production tree joint is contacted thus pressure gauge can sense hydraulic pressure with electronic pressure gauge 2, electronic pressure gauge 2 upper side wall extends communication plug interface 4, be convenient to be connected with external communication cable, electronic pressure gauge 2 and computer couple together by communication cable, its external communication cable alternative is as RS485 communication cable, the data that pressure gauge collects are transferred on computer by communication cable, and carry out pressure data by retaking of a year or grade software, the real-time reading of temperature data and playback.
The work of well testing is formed primarily of two parts, the admission of test data and the explanation of test data; The wellhead of water injection well pressure tester that the present embodiment provides in use, first each parts inspection work of pressure tester is carried out, and connecting components carries out system calibrating and detection, guarantee that each parts normally work, then by this pressure tester and computer by such as: RS485 communication cable couples together, test parameter setting can be carried out to electronic pressure gauge by data readback software, to guarantee that in electronic pressure gauge, every system parameter setting is correct, data readback is normal, then extracts RS485 communication cable; Then prepare this pressure tester is installed, carrying out sluice gate and producing gate on water injection well production tree is closed in test site, after pressure in production tree cavity, test strobe is installed this well-head pressure-measuring device, then waterflood path is communicated with, after water filling a period of time after flowing bottomhole pressure (FBHP) is stable, close sluice gate and start pressure fall-off test; Now, electronic pressure gauge starts to carry out the data acquisition such as pressure, temperature, with RS485 communication cable, pressure gauge is connected on computer, carry out data by retaking of a year or grade software to read in real time and playback, realize the admission of test data, then the pressure and temperature statistical conversion recorded is become received text form, and be converted to dark pressure in oil reservoir according to wellhead of water injection well pressure data and (prove through test of many times, the PRESSURE DATA that well head obtains differs pit shaft liquid column hydrostatic pressure substantially with force value dark in water injection well oil reservoir), finally complete pressure fall-off test interpretation work.
The wellhead of water injection well pressure tester that the present embodiment provides is connected with the test strobe being positioned at wellhead of water injection well by oil connection, the electronic pressure gauge arranged in tubing interface carries out the continuous monitoring of pressure, and by communication plug interface that electronic pressure gauge is arranged by the real-time data transmission such as pressure, temperature that records to computer, and by the retaking of a year or grade software simulating data readback on computer, thus realize carrying out Real-Time Monitoring and accurate pressure measurement to water injection well in oil fields, improve the degree of accuracy of test result; Pressure, temperature parameter are grasped at any time, simple to operation.
And owing to placing this pressure tester at wellhead of water injection well, when overcoming traditional bottomhole pressure survey, tester rule of thumb can only evaluate test period, thus the problem causing test process loaded down with trivial details; And this pressure tester is directly installed on well head, does not need pressure tester to take the reading just carrying out data after ground from shaft bottom, the testing time can be saved widely, operate more convenient, also mitigate the operation intensity of workman; Meanwhile, this pressure tester structure is simple, and size is less, light quality, and the scene of being convenient to is carried and loaded and unloaded, safe and reliable, economical and practical, and measuring accuracy is higher.
Simultaneously, from the above, in contrast to prior art, the wellhead of water injection well pressure tester that the present embodiment provides causes operating personnel rule of thumb can only predict the testing time except overcoming in prior art by carrying out test in the electronic pressure gauge of memory-type input well, then pressure gauge is lifted to ground, read test result, test data can not Real-Time Monitoring, and operate outside comparatively loaded down with trivial details shortcoming, relative in prior art when well head arranges mechanical pressure gauge or pressure meter, pressure meter can only be used for monitoring pressure, can not be used for testing well testing, its measuring accuracy is not high, and for mechanical pressure gauge, as Chinese patent (publication number: CN2869318) discloses one " oil field water injection well manometer ", this kind of manometer is mechanical, " by conduit, connect gland, threeway, plunger bushing, plunger rod, pressure meter forms, pressure meter is connected to the side of threeway, plunger rod is connected with plunger bushing outer end threaded engagement, piston is connected with in plunger rod the inner, stopping table and sealing ring is provided with in the front end of conduit, and establish one way valve at conduit Inner Front End ", its structure visible is quite complicated, corresponding manufacturing process also relative complex, and install loaded down with trivial details in the process used, flow chart is more, and precision is not high yet, equally also can only be used for monitoring pressure can not accurately test, and this pressure tester is connected on production tree by an oil connection, and electronic pressure gauge is directly built in oil connection, test data is obtained to computer by communication plug interface external cable, structure is simple, it is convenient to measure, and electronic pressure gauge precision is higher, when mounted, the oil connection of this pressure tester is only needed to be connected with production tree, such as, the available mode be spirally connected connects, make installation more convenient, fast.
The wellhead of water injection well pressure tester that the present embodiment provides is owing to being set to well head by electronic pressure gauge, directly be connected with the test strobe of production tree, Real-Time Monitoring can be realized and also can carry out playback to data, accurate test data can be obtained, be highly suitable for well testing work.
Based on above-described embodiment, further, battery compartment 6 can being connected in the upper end of oil connection 1, in battery compartment 6, being provided with the battery 7 for powering to electronic pressure gauge 2.Concrete, battery compartment 6 can be made up of waterproofing materials, is provided with wire in this battery compartment 6, and battery and electronic pressure gauge 2 are electrically connected by wire, and battery compartment 6 is removably connected on oil connection 1, and battery 7 ensures that electronic pressure gauge 2 can normally work at any time.
Particularly, electronic pressure gauge 2 is provided with integrated circuit board, integrated circuit board is provided with pressure sensor, temperature pick up, and the pressure measurement circuit to be connected with pressure sensor and the temperature measurement circuit be connected with temperature pick up, and the power supply circuits be connected with pressure sensor, temperature pick up and battery respectively.Pressure sensor is for responding to hydraulic pressure, and by pressure measurement circuit, pressure data being transferred to computer, temperature data for responding to wellhead temperature, and is transferred to computer by temperature measurement circuit by temperature pick up, meanwhile, battery is powered by power supply circuits to pressure sensor, temperature pick up.
In the above-described embodiments, the lower end, outside of oil connection 1 can offer the threaded portion for being connected with production tree injection well testing gate.Oil connection 1 is threadedly attached on the test strobe of production tree water injection well, it is very convenient to remove and install, when mounted, the threaded portion of oil connection 1 is wound around some layers of raw material band, then the tool holding oil connections 1 such as spanner are utilized, forward screws oil connection 1, when needing to dismantle oil connection, then oppositely unscrews oil connection 1.The mode be threaded is adopted to make the dismounting of pressure tester more convenient, convenient.
Concrete, in the above-described embodiments, with reference to accompanying drawing 1, the tapered tread that threaded portion can reduce from the upper end of oil connection 1 to lower end successively for parent diameter.Taper pipe thread can have certain tapering, because this characteristic makes the raw material band be wrapped on screw thread to be more uniformly distributed on screw thread, there is better sealing, simultaneously the iron pipe wall that uses of taper pipe thread is thicker, there is higher resistance to pressure, due to tapering, this kind of screw thread has " self-tightening effect " when coordinating with same taper thread or cylindrical thread, can play sealing function better; The parent shape of certain threaded portion also can be cylindrical, now, in order to seal better, needs to use more raw material band.
Further, with reference to accompanying drawing 1, the top of oil connection 1 can offer the blind hole 8 for being connected with battery compartment 6, and it is interior and be spirally connected with blind hole 8 sidewall that battery compartment 6 is inserted in blind hole 8.Blind hole 8 is centrally axially offered in the top of oil connection 1, blind hole 8 is for plugging battery compartment 6, the end of battery compartment 6 is provided with external screw thread, blind hole 8 sidewall is provided with the internal thread matched with battery compartment 6 end external screw thread, battery compartment 6 is screwed in blind hole 8, and owing to adopting the form be spirally connected, battery compartment 6 is separated with oil connection 1, battery 7 can be changed easily, ensure that the power supply of whole pressure tester is enough.
Certainly, one of ordinary skill in the art will appreciate that, for the structure needing battery compartment 6 to be arranged on oil connection 1, be not limited to above mode, such as, battery compartment 6 and oil connection 1 can also be made into integral structure, at the top cover that the top design of battery compartment 6 becomes can open, when installing battery, top cover being opened, battery is filled in battery compartment then top cover.
Accompanying drawing 3 is the structural representation of the battery compartment in the utility model wellhead of water injection well pressure tester one embodiment; In the above-described embodiments, with reference to accompanying drawing 1 and accompanying drawing 3, the blind hole at oil connection 1 top can be shoulder hole, the upper hole internal diameter of shoulder hole is greater than bottom hole internal diameter, battery compartment 6 lower outside wall is provided with outward extending annular flange portion 9, annular flange portion 9 snaps in the upper hole of shoulder hole, and annular flange portion 9 and shoulder hole match.
Certainly one of ordinary skill in the art will appreciate that, the flange part of battery compartment 6 bottom is not limited to annular shape, as long as position limitation can be carried out to battery compartment 6, the upper hole of shoulder hole and the joint of bottom hole form step, and the annular flange portion 9 that battery compartment 6 bottom is arranged just in time is seated at the top of step, step stops that annular flange portion 9 continues to move down, thus limits the degree of depth that stretches into of battery compartment 6, plays positioning action well.The external diameter of the annular flange portion of battery compartment 6 bottom can be arranged to the internal diameter of the upper hole equaling shoulder hole, to seal better, prevent outside water from entering in battery compartment 6.
Further, can be provided with waterproof washer 10 below annular flange portion 9, waterproof washer 10 snaps in the upper hole of shoulder hole.Concrete, the material of waterproof washer 10 can be chosen as rubber washer, and its quality of rubber washer is softer, easy for installation, and its water proofing property is very good, can prevent outside water from entering in battery compartment 6 better.
Based on above-described embodiment, be illustrated in figure 2 the structural representation after the installation of the utility model wellhead of water injection well pressure tester, the external surface of oil connection 1 can offer some anti-slip tanks 11.Anti-slip tank 11 can be the matsurface be made up of some grooves, also directly matsurface can be formed by annular knurl, when object is to make oil connection 1 be installed on production tree, other devices turning oil connection 1 such as spanner can have more frictional force, because oil connection 1 external surface frictional force is too small thus occur the phenomenon of skidding in the process of tightening, operational security and operability can not be improved.
With reference to accompanying drawing 1, the locating flange 12 for positioning electronic pressure gauge 2 in oil connection 1 top blind hole 8, can be provided with.In the process of the installation to electronic pressure gauge 2, electronic pressure gauge 2 is inserted in oil connection 1, arranges locating flange 12 in the end of electronic pressure gauge 2, positions electronic pressure gauge 2, also serves certain sealing function simultaneously.
Further, in the above-described embodiments, with reference to accompanying drawing 1, communication plug interface 4 can be arranged on the side of electronic pressure gauge 1.In the prior art, the communication plug interface of most of electronic pressure gauge is all arranged on the end of electronic pressure gauge, in the present embodiment, the communication plug interface of electronic pressure gauge is arranged on the tube wall side of electronic pressure gauge, be convenient to the connection of communication cable, tester is more convenient when operating, and flexibility is higher.
With reference to accompanying drawing 1 and accompanying drawing 2, interface holes 5 top on oil connection 1 is provided with waterproof cover 13.Because communication plug interface 4 needs be connected with cable and be connected to computer; because the working environment of whole test is comparatively moist; when not needing to use this testing arrangement; or when not needing to connect communication cable; adopt waterproof cover 13 to be protected by communication plug interface 4, prevent extraneous water from entering into interface.
Concrete, be illustrated in figure 4 the structural representation of waterproof cover in the utility model wellhead of water injection well pressure tester one embodiment; The material of waterproof cover 13 also may be selected to be stainless steel material, waterproof cover 13 can be that the form be threaded connection is installed to interface holes 5 place equally, then now corresponding need offer internal thread in interface holes 5, waterproof cover 13 can be designed to the structure that longitudinal section is T-shaped, offer external screw thread bottom it, waterproof washer 10 can be set in the inner side of waterproof cover 13 simultaneously.
In the above-described embodiments, with reference to accompanying drawing 1, the lower end of oil connection 1 can arrange plug 14, and some permeable holes 3 are opened on plug 14.Concrete, can offer multiple permeable hole vertically on plug 13, so that water can contact with electronic pressure gauge 2, also control the flow of water, the setting of plug 14 also serves certain location sealing effect to electronic pressure gauge 2 simultaneously.
Be illustrated with the use of the test of an on-the-spot test to this pressure tester below:
In pressure tester, oil connection adopts martensitic precipitation hardening type stainless steel material to make, and the maximum gauge of whole device is 73mm, and after each assembling parts, the length of pressure tester is 189mm, and the connection of oil connection and production tree is that 2-7/8 oil well pipe thread connects.According to on-the-spot injection well testing gate real size size, make corresponding well head pressure tester.
Certain water injection well in oil fields tubular column structure many employings internal diameter is the production string of 124.26mm, external diameter is 73mm oil pipe (flat box cupling 89mm), injection well testing gate internal diameter 60.2mm, this device can be arranged on test strobe, realizes sealing completely, does not reveal; System parameter setting is carried out in indoor after being connected by each for this pressure tester parts; According to portable well-head pressure-measuring device operational procedure, in certain oil field, H40-12 well well head installs this device, omnidistance PRESSURE DATA admission is normal, pressure data playback can be completed at any time, the pressure data having tested rear monitoring can complete pressure fall-off test and explain, and well test analysis data is qualified, field produces reality can be applied to.
The other technologies index of the pressure tester that the present embodiment provides is preferably as follows:
Size: pressure tester maximum gauge is Φ 73, the length that each parts install rear pressure tester is 189mm;
Pressure test scope: 0 ~ 60MPa;
Pressure precision 0.05%;
Temperature measurement range :-40 DEG C;
Operating voltage: 3.6V;
Battery capacity: 5AH;
Quiescent current: <0.05mA;
Data storage capacity: 1,500,000 points;
Sampling gap: 1 second ~ 18 hours;
Service time: sampling in 10 seconds can continuous operation 6 months;
Instrument material: 17-4PH high-quality steel.
Last it is noted that above each embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to foregoing embodiments, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of each embodiment technical scheme of the utility model.
Claims (13)
1. a wellhead of water injection well pressure tester, it is characterized in that, comprise the oil connection for being connected with production tree injection well testing gate, electronic pressure gauge is inserted with in described oil connection, lower end and the described electronic pressure gauge contact position of described oil connection are provided with some permeable holes, described electronic pressure gauge is provided with communication plug interface, described oil connection offers the interface holes for holding communication plug interface.
2. wellhead of water injection well pressure tester according to claim 1, is characterized in that, the upper end of described oil connection is connected with battery compartment, is provided with the battery for powering to electronic pressure gauge in described battery compartment.
3. wellhead of water injection well pressure tester according to claim 2, it is characterized in that, described electronic pressure gauge is provided with integrated circuit board, described integrated circuit board is provided with pressure sensor, temperature pick up, and the pressure measurement circuit to be connected with described pressure sensor and the temperature measurement circuit be connected with described temperature pick up, and the power supply circuits be connected with pressure sensor, temperature pick up and battery respectively.
4. the wellhead of water injection well pressure tester according to any one of claim 1-3, is characterized in that, the lower end, outside of described oil connection offers the threaded portion for being connected with described production tree injection well testing gate.
5. wellhead of water injection well pressure tester according to claim 4, is characterized in that, described threaded portion is the tapered tread that parent diameter reduces successively from the upper end of described oil connection to lower end.
6. the wellhead of water injection well pressure tester according to any one of claim 1-3, is characterized in that, the top of described oil connection offers the blind hole for being connected with described battery compartment, and described battery compartment to be inserted in described blind hole and to be spirally connected with described blind hole sidewall.
7. wellhead of water injection well pressure tester according to claim 6, it is characterized in that, the blind hole at described oil connection top is shoulder hole, the upper hole internal diameter of described shoulder hole is greater than bottom hole internal diameter, described battery compartment lower outside wall is provided with outward extending annular flange portion, described annular flange portion snaps in the upper hole of described shoulder hole, and described annular flange portion and described shoulder hole match.
8. wellhead of water injection well pressure tester according to claim 7, is characterized in that, is provided with waterproof washer below described annular flange portion, and described waterproof washer snaps in the upper hole of described shoulder hole.
9. wellhead of water injection well pressure tester according to claim 7, is characterized in that, is provided with the locating flange for positioning electronic pressure gauge in the blind hole of described oil connection top.
10. the wellhead of water injection well pressure tester according to any one of claim 1-3, is characterized in that, the external surface of described oil connection offers some anti-slip tanks.
11. wellhead of water injection well pressure testers according to any one of claim 1-3, it is characterized in that, described communication plug interface is positioned at the side of described electronic pressure gauge.
12. wellhead of water injection well pressure testers according to any one of claim 1-3, it is characterized in that, the interface holes top on described oil connection is provided with waterproof cover.
13. wellhead of water injection well pressure testers according to any one of claim 1-3, it is characterized in that, the lower end of described oil connection is provided with plug, and described some permeable holes are opened on described plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420538157.5U CN204175289U (en) | 2014-09-18 | 2014-09-18 | Wellhead pressure measuring device for water injection well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420538157.5U CN204175289U (en) | 2014-09-18 | 2014-09-18 | Wellhead pressure measuring device for water injection well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204175289U true CN204175289U (en) | 2015-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420538157.5U Expired - Fee Related CN204175289U (en) | 2014-09-18 | 2014-09-18 | Wellhead pressure measuring device for water injection well |
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| CN (1) | CN204175289U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108956052A (en) * | 2018-05-04 | 2018-12-07 | 中国石油化工股份有限公司 | A kind of rubber seal method for testing performance of resistance to carbon dioxide |
-
2014
- 2014-09-18 CN CN201420538157.5U patent/CN204175289U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108956052A (en) * | 2018-05-04 | 2018-12-07 | 中国石油化工股份有限公司 | A kind of rubber seal method for testing performance of resistance to carbon dioxide |
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