CN206722824U - Downhole tool pressure test device - Google Patents

Downhole tool pressure test device Download PDF

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Publication number
CN206722824U
CN206722824U CN201720450824.8U CN201720450824U CN206722824U CN 206722824 U CN206722824 U CN 206722824U CN 201720450824 U CN201720450824 U CN 201720450824U CN 206722824 U CN206722824 U CN 206722824U
Authority
CN
China
Prior art keywords
sealing ring
seal
nipple
downhole tool
joint
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.)
Expired - Fee Related
Application number
CN201720450824.8U
Other languages
Chinese (zh)
Inventor
于学信
姜国良
白艳丽
孙骞
曹雪梅
杨洁
王芳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Petroleum and Chemical Corp
Sinopec Research Institute of Petroleum Engineering Shengli Co
Original Assignee
China Petroleum and Chemical Corp
Sinopec Research Institute of Petroleum Engineering Shengli Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China Petroleum and Chemical Corp, Sinopec Research Institute of Petroleum Engineering Shengli Co filed Critical China Petroleum and Chemical Corp
Priority to CN201720450824.8U priority Critical patent/CN206722824U/en
Application granted granted Critical
Publication of CN206722824U publication Critical patent/CN206722824U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses downhole tool pressure test device, including upper pipe nipple, lower pipe nipple, sealing ring, seal nipple, outer barrel, the upper pipe nipple lower end is connected by sealing ring with lower pipe nipple upper end, outer get out of a predicament or an embarrassing situation that the sealing ring is opened up using itself outer wall is pressed on the interior step that seal nipple inner chamber opens up, the seal nipple lower end connects outer barrel, the outer barrel wall opens up the inlet of two radial directions one on the other, respectively upper inlet, lower inlet, the upper upper action pressure-testing joint of inlet connection, the lower lower action pressure-testing joint of inlet connection.Also include seal joint, the sealing ring outer wall also opens up outer top bar, and seal joint lower end is pressed in outer top bar, and sealing ring is pressed on the interior step of seal nipple inner chamber.The utility model solves the problems, such as the experiment demand that existing test tool can not meet different downhole tool pressure tests simultaneously.The device convenient disassembly, simple to operate, operating efficiency is high.

Description

Downhole tool pressure test device
Technical field
Oil/gas Well downhole tool device for detecting performance is the utility model is related to, specifically downhole tool pressure test fills Put.
Background technology
In oilfield exploitation procedure, tripping in process pipe string is generally required for underground work such as pressure break, water filling, oil recoveries, And supporting various downhole tools.Downhole tool, which generally requires, bears the severe subsurface environment such as high pressure, high temperature, and performance that its is pressure-resistant is extremely Close important, once going wrong, the generation of down-hole accident will certainly be caused, cause huge economic loss.Packer is oil gas Widely used a kind of downhole tool in well underground work, to insulate oil jacket annular space, play isolation payzone, control fluid, protect The purpose of protecting pipe.The quality of packer sealing performance directly influences production and the safety of Oil/gas Well.Therefore, packer enters well Before need by comprehensive indoor performance detection rear can be used.In addition, control class for circulating valve, injection well downhole flow regulator, constant pressure valve etc. Downhole tool, in use, needing to control the on off state of instrument by pressure size, so as to realize the control to oil jacket tube passage System.Such instrument is needed to open under the pressure of setting, realizes that oil jacket connects, and the reliability of switch performance is needed by comprehensive Indoor detection, it is ensured that tool performance is reliable and stable, avoids as far as possible because instrument cause for quality causes the generation of down-hole accident, it is ensured that Oil/gas Well is kept the safety in production.At present, for downhole tool pressure test, different types of downhole tool work typically corresponding to use Dress, lacks a kind of simple to operate, is applicable the experimental rig of different type downhole tool pressure test.
By retrieval, Authorization Notice No. 205027518U, authorized announcement date 2016.02.10 disclose a kind of reacting cycle well Lower instrument Opening pressure test device, wherein device include outer barrel, described one action pressure-testing joint of outer barrel radially installed, and the pressure testing connects The centre bore of head connects outer tube inner chamber, and the internal diameter of the outer barrel is greater than the external diameter of reacting cycle downhole tool.The outer barrel it is upper End sets upper sealing ring and fixed by upper sealing ring pressure cap clinching, upper sealing ring pressure cap lower end and outer barrel screw-type connection.Institute The lower end for stating outer barrel sets lower sealing ring and fixed by lower sealing ring pressure cap clinching, lower sealing ring pressure cap upper end and outer barrel screw thread Formula connects.Sealing ring is respectively provided between the outer barrel upper and lower end outer wall and upper and lower sealing ring, when reacting cycle downhole tool passes through During upper and lower sealing ring sealing ring is also provided between upper and lower sealing.Ring is formed between outer barrel and the reacting cycle downhole tool It is empty.In comparison with the present application, both technical schemes simultaneously differ technology disclosed above, and public technology can not meet different type Pressure test demand of downhole tool etc..
Utility model content
The purpose of this utility model is to provide downhole tool pressure test device, and solving existing test tool can not be same When the problem of meeting the experiment demand of different downhole tool pressure tests.The device convenient disassembly, simple to operate, operating efficiency It is high.
In order to reach above-mentioned purpose, the utility model employs following technical scheme, downhole tool pressure test device, bag Pipe nipple, lower pipe nipple, sealing ring, seal nipple, outer barrel are included, the upper pipe nipple lower end is connected by sealing ring and lower pipe nipple upper end Connect, outer get out of a predicament or an embarrassing situation that the sealing ring is opened up using itself outer wall is pressed on the interior step that seal nipple inner chamber opens up, described Seal nipple lower end connects outer barrel, and the outer barrel wall opens up the inlet of two radial directions one on the other, respectively upper inlet, Lower inlet, the upper upper action pressure-testing joint of inlet connection, the lower lower action pressure-testing joint of inlet connection.
Also include seal joint, the sealing ring outer wall also opens up outer top bar, and seal joint lower end is pressed in outer top bar On, sealing ring is pressed on the interior step of seal nipple inner chamber.
The sealing ring outer surface is engaged with seal joint inner surface, and sealing ring is set in mating surface;Outside seal joint Surface is engaged with seal nipple inner surface, and sealing ring is set in mating surface.
The upper pipe nipple upper end connection top connection.
The outer barrel lower end connects lower contact.
Compared to prior art, the utility model has the advantages that:
The downhole tool pressure test device, central tube and upper and lower annular space are respectively provided with pressure testing passage, can be to Stress control class The inside and outside Opening pressure of downhole tool, packer setting pressure and resistance to pressure difference performance are tested, and meet different type downhole tool Pressure test demand;Sealing ring and seal nipple are coordinated using gap, and by annular space inside and outside seal joint locking and sealing, Convenient disassembly, simple to operate, operating efficiency is high.
Brief description of the drawings
Fig. 1 is the structural representation of downhole tool pressure test device.
Fig. 2 is mounting structure schematic diagram when the pressure-resistant performance detection of hydraulic packer works.
In figure:Top connection 1-1, upper pipe nipple 1-2, seal joint 1-3, sealing ring 1-4, seal nipple 1-5, lower pipe nipple 1-6, Upper action pressure-testing joint 1-7, outer barrel 1-8, lower action pressure-testing joint 1-9, lower contact 1-10, packer 2-1, packing element 2-2, plug 2- 3。
Embodiment
Relevant detailed description of the present utility model and technology contents, coordinate brief description of the drawings as follows, but accompanying drawing is only to refer to With purposes of discussion, not it is used for being any limitation as the utility model.
As shown in Figure 1, downhole tool pressure test device, mainly by top connection 1-1, upper pipe nipple 1-2, seal joint 1- 3rd, sealing ring 1-4, seal nipple 1-5, lower pipe nipple 1-6, outer barrel 1-8, lower contact 1-10 and upper action pressure-testing joint 1-7 and lower pressure testing connect The compositions such as head 1-9.
Top connection 1-1, upper pipe nipple 1-2, sealing ring 1-4 are passed sequentially through with lower pipe nipple 1-6 and are threadedly coupled;Sealing ring 1-4 leads to Cross seal joint 1-3 to be pressed on the step of seal nipple 1-5 upper lumens, in sealing ring 1-4 outer surfaces and seal joint 1-3 Surface is engaged, and sealing ring is set in mating surface;Seal joint 1-3 outer surfaces are engaged with seal nipple 1-5 inner surfaces, are coordinated Sealing ring is set on face.
Seal joint 1-3 upper ends outer wall opens up the mounting hole of radial direction, and supporting aid is easy to the handling of seal joint.
Seal nipple 1-5 and outer barrel 1-8, lower contact 1-10 are connected through a screw thread;Outer barrel 1-8 walls are upper and lower respectively to open up one Individual inlet, the upper and lower inlet position vertical direction in outer surface is by being welded to connect upper action pressure-testing joint 1-7 and lower action pressure-testing joint 1- 9。
As shown in Fig. 2 the operation principle of downhole tool pressure test device:
For the pressure-resistant performance detection of hydraulic packer.Fastening means pipe first is altered.By top connection 1-1, upper pipe nipple 1-2, Sealing ring 1-4, lower pipe nipple 1-6 are passed sequentially through with packer 2-1 and are threadedly coupled, packer 2-1 lower ends connection plug 2-3.By work Tool pipe alters charging apparatus inner chamber, and is locked by seal joint 1-3.When setting, pressure testing pipeline is connected to top connection 1-1, passes through Hydraulic test pump is altered internal pressurization to packer pipe and set, and internal pressure-resistant test can be carried out by continuing to be pressurized to test pressure after setting.Test During the resistance to pressure differences of packing element 2-2, pressure testing pipeline is connected respectively to action pressure-testing joint 1-7 and lower test joint 1-9 is insulated The test of the resistance to upper and lower pressure differences of device packing element 2-2.Needed during the resistance to lower pressure differences of test packing element 2-2 by lower contact 1-10 plugs Closure.
Test for Stress control class instrument.Similarly, instrument is connected under device on pipe nipple 1-6, instrument lower end is used Plug blocks.According to the unfolding mode of downhole tool, pressure testing pipeline is connected to the top connection of device or action pressure-testing joint carries out work Tool opens pressure test.When carrying out instrument reacting cycle by action pressure-testing joint and opening pressure test, another action pressure-testing joint and Lower contact will be blocked by plug.
Preferred embodiment of the present utility model is the foregoing is only, is not used to limit the scope of the claims of the present utility model, its He uses the equivalence changes of the utility model patent spirit, all should all belong to the scope of the claims of the present utility model.

Claims (5)

1. downhole tool pressure test device, it is characterised in that including upper pipe nipple, lower pipe nipple, sealing ring, seal nipple, outer barrel, The upper pipe nipple lower end is connected by sealing ring with lower pipe nipple upper end, and the sealing ring outer is got out of a predicament or an embarrassing situation using what itself outer wall opened up It is pressed on the interior step that seal nipple inner chamber opens up, the seal nipple lower end connects outer barrel, and the outer barrel wall opens up one On once two radial directions inlet, respectively upper inlet, lower inlet, the upper upper action pressure-testing joint of inlet connection, under The lower action pressure-testing joint of inlet connection.
2. downhole tool pressure test device according to claim 1, it is characterised in that described also including seal joint Sealing ring outer wall also opens up outer top bar, and seal joint lower end is pressed in outer top bar, sealing ring is pressed in seal nipple On the interior step of chamber.
3. downhole tool pressure test device according to claim 2, it is characterised in that it is described sealing ring outer surface with it is close Envelope pressure ring inner surface is engaged, and sealing ring is set in mating surface;Seal joint outer surface is engaged with seal nipple inner surface, is matched somebody with somebody Sealing ring is set on conjunction face.
4. downhole tool pressure test device according to claim 1, it is characterised in that in the upper pipe nipple upper end connection Joint.
5. downhole tool pressure test device according to claim 1, it is characterised in that connect under the outer barrel lower end connection Head.
CN201720450824.8U 2017-04-26 2017-04-26 Downhole tool pressure test device Expired - Fee Related CN206722824U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720450824.8U CN206722824U (en) 2017-04-26 2017-04-26 Downhole tool pressure test device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720450824.8U CN206722824U (en) 2017-04-26 2017-04-26 Downhole tool pressure test device

Publications (1)

Publication Number Publication Date
CN206722824U true CN206722824U (en) 2017-12-08

Family

ID=60507469

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720450824.8U Expired - Fee Related CN206722824U (en) 2017-04-26 2017-04-26 Downhole tool pressure test device

Country Status (1)

Country Link
CN (1) CN206722824U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109403956A (en) * 2018-11-07 2019-03-01 王仪腾龙 Natural gas well down-hole pressure safety detection device based on pressure sensor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109403956A (en) * 2018-11-07 2019-03-01 王仪腾龙 Natural gas well down-hole pressure safety detection device based on pressure sensor

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GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20171208

Termination date: 20210426