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Casing outer packer test device

A test device and packer technology, applied in the direction of measuring devices, machine/structural component testing, instruments, etc., can solve the problems of ineffective separation and difficult operation, and achieve the effect of high reliability and simple operation

Inactive Publication Date: 2017-12-12
CNPC SICHUAN GASOLINEEUM GEOPHYSICAL PROSPECTING ENG TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the problems of difficult operation and ineffective separation in the prior art, the present invention provides a casing outer packer test device, which can effectively separate, ensure normal construction, and effectively complete the field application of the casing outer packer. The simulation test is simple and reliable, which can ensure that the casing outer device after the test can achieve the purpose of use in the field application

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0021] In order to overcome the problems of difficult operation and ineffective separation in the prior art, the present invention provides a method such as figure 1 , figure 2 The casing outer packer test device shown can effectively separate, ensure the normal construction, and can effectively complete the simulation test before the field application of the casing outer packer. Outer tubes serve their purpose in field applications.

[0022] Casing outer packer test device, including the test outer tube 14, the test outer tube 14 is a hollow pipe string, and the two ends of the test outer tube 14 are respectively fixedly connected with the fastening plug I13 and the fastening plug II17 through threads form a closed cavity;

[0023] A test piece outer casing packer 15 is arranged in the inner cavity of the test outer pipe 14, and the lower end of the casing outer packer 15 is sealed and connected by a plug 16 to form a closed space;

[0024] Both the fastening plug I13 and...

Embodiment 2

[0030] Based on the first embodiment, the pressure gauge 4 in this embodiment is arranged on the pressure gauge base 3 , and the pressure gauge base 3 is connected to the connector 6 through the pressure gauge connecting rod 5 .

[0031] A pressure gauge 4, a pressure gauge seat 3, and a pressure gauge connecting rod 5 are installed on the joint 6, which is convenient for observing the pressure value.

[0032] The test connecting pipe 7 is sealed and connected with the fastening plug I13 through the sealing ring 9 . The fastening plug II 17 is sealed and connected to the test outer tube 14 through the second sealing ring 12 .

[0033] A limit retaining ring 10 is provided at the outer diameter of the test outer tube 7, and the limit retaining ring 10 is located inside the fastening plug I13.

[0034] A needle valve 2 is arranged on the joint 1 .

[0035] The test connecting pipe 7 and the outer end surface of the fastening plug I13 are fixedly connected through the positioni...

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Abstract

The invention provides a casing outer packer test device, which includes a test outer tube, the test outer tube is a hollow pipe string, and the two ends of the test outer tube are respectively connected to the fastening plug I and the fastening plug II through threads. The fixed connection forms a closed cavity; the outer casing packer of the test piece is set in the inner cavity of the test outer pipe, and the lower end of the outer casing packer is connected by a plug to form a closed space; the fastening plug II is equipped with a pressure test The pump joint connected to the pump, the inner hole of the fastening plug I is sealed and connected with a test connecting pipe, one end of the test connecting pipe is placed in the test outer pipe, and the other end is placed at the outer end of the fastening plug I; The top of the test connecting pipe at the outer end of the fastening plug I is connected to a joint through a joint, and a needle valve is installed on the joint; it can effectively separate, ensure the normal progress of the construction, and effectively complete the simulation test before the field application of the outer casing packer. The operation is simple and the reliability is strong, which can ensure that the casing outer device after the test can achieve the purpose of use in the field application.

Description

technical field [0001] The invention relates to the technical field of oil and gas well cementing and completion tools, in particular to an outer casing packer test device. Background technique [0002] The casing packer is used for cementing operations, the purpose of which is to effectively separate the production layer and facilitate subsequent production. Under the influence of pressure, the rubber sleeve of the outer casing packer expands and seals with the well wall without gaps, achieving the purpose of separation of production zones. After the separation is completed, the wellbore pressure of the separated two sections should meet the requirements of well completion pressure test. Before the casing outer packer is applied in the field, indoor expansion test must be carried out. The casing outer packer test device can effectively simulate the on-site construction conditions, and check the influence of the annular pressure on the pipe internal pressure after the expan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/00
Inventor 陈尚礼王莉王文斌陈鹏伟曹彦琴
Owner CNPC SICHUAN GASOLINEEUM GEOPHYSICAL PROSPECTING ENG TECH RES INST
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