CN205719800U - External pressure testing tool in a kind of hanger fluid cylinder - Google Patents

External pressure testing tool in a kind of hanger fluid cylinder Download PDF

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Publication number
CN205719800U
CN205719800U CN201620399937.5U CN201620399937U CN205719800U CN 205719800 U CN205719800 U CN 205719800U CN 201620399937 U CN201620399937 U CN 201620399937U CN 205719800 U CN205719800 U CN 205719800U
Authority
CN
China
Prior art keywords
hanger
fluid cylinder
external pressure
plug
testing tool
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
CN201620399937.5U
Other languages
Chinese (zh)
Inventor
张京华
宋剑鸣
古青
蒋立坤
周冀
刘超
韩振强
吴玉胜
马淼
张睿
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.)
CNPC Bohai Drilling Engineering Co Ltd
Original Assignee
CNPC Bohai Drilling Engineering Co Ltd
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 CNPC Bohai Drilling Engineering Co Ltd filed Critical CNPC Bohai Drilling Engineering Co Ltd
Priority to CN201620399937.5U priority Critical patent/CN205719800U/en
Application granted granted Critical
Publication of CN205719800U publication Critical patent/CN205719800U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

This utility model is created provides external pressure testing tool in a kind of hanger fluid cylinder, including: front plug, it is possible to be connected with hanger forward end seal, and there is the passage that connect internal with hanger;Rear plug, it is possible to be connected with hanger back-end sealing;Wall body, it is set in outside hanger, two ends are sealedly connected with drive end bearing bracket and rear end cap respectively, the other end of described drive end bearing bracket is sealingly fastened in the outer wall of described front plug, together with the outer wall of described rear end cap, wall body, drive end bearing bracket, front plug, rear plug and hanger and fluid cylinder thereof, together constitute a sealing and be surrounded on the test cavity of described hanger and fluid cylinder periphery thereof;Inner pressure test mouth, is sealingly fastened in described front plug front end, and has the interior pressure passageway making the passage of front plug be in communication with the outside;External pressure test mouth, is sealingly fastened on described rear end cap, and has the outer pressure passageway making test cavity be in communication with the outside.This utility model is created and can be reduced construction risk from the bearing capacity tested inside and outside hanger fluid cylinder.

Description

External pressure testing tool in a kind of hanger fluid cylinder
Technical field
The invention belongs to Petroleum Down-hole Tool characteristics inspecting device technical field, particularly relates to one and is applicable to oil well The interior external pressure testing tool of lower instrument hanger liquid cylinder piston part.
Background technology
In the solid completion practice of oil and gas well drilling, using extension hanger is that it is also the most universal for using more at present Technical measures, but part the weakest in hanger is exactly fluid cylinder and piston portion, the most effectively detects outstanding The bearing capacity of hanging device fluid cylinder becomes the pith of hanger production assurance.The pressure-bearing inspection of current most of hanger Testing is all that only test pipe is intrinsic pressure, and this check system has certain guarantee to the quality of hanger, but not comprehensive, some Down-hole abnormal conditions find that hanger fluid cylinder is spilt a hole by thorn in pipe extroversion pipe, and such hanger complete machine cannot seal, Cement plug can be stayed to cause the accident if continuing well cementing operation.
Summary of the invention
The invention is for solving the problems of the prior art, it is provided that external pressure testing tool in a kind of hanger fluid cylinder, knot Structure is simple, easy for installation, it is possible to effective bearing capacity in terms of positive and negative two inside and outside test hanger fluid cylinder, reduces Construction risk.
External pressure testing tool in a kind of hanger fluid cylinder that the invention provides, including:
Front plug, it is possible to be connected with hanger forward end seal, and there is the passage that connect internal with hanger;
Rear plug, it is possible to be connected with hanger back-end sealing;
Wall body, is set in outside hanger, and two ends are sealedly connected with drive end bearing bracket and rear end cap respectively, described drive end bearing bracket another One end is sealingly fastened in the outer wall of described front plug, described rear end cap, wall body, drive end bearing bracket, front plug, rear plug and The outer wall of hanger and fluid cylinder thereof together, together constitute a sealing and are surrounded on described hanger and the examination of fluid cylinder periphery thereof Test cavity;
Inner pressure test mouth, is sealingly fastened in described front plug front end, and has make the passage of front plug be in communication with the outside interior Pressure passageway;
External pressure test mouth, is sealingly fastened on described rear end cap, and has the outer pressure passageway making test cavity be in communication with the outside.
Wherein, described front plug and rear plug and described hanger threaded sealing fit.Further, described front plug and after The threaded engagement position of plug and described hanger is positioned at the inner side of described hanger.
Wherein, described drive end bearing bracket and rear end cap and described wall body threaded sealing fit.Further, described drive end bearing bracket and rear end The threaded engagement position of lid and described wall body is positioned at the outside of described wall body.
Wherein, the outer wall of described front plug is provided with the stepped land that card filled and fixed the port of described drive end bearing bracket, described The external diameter of the part being positioned at the adjacent close hanger side of described stepped land on front plug is more than the end of described drive end bearing bracket Distance between Kou.Further, also set between the card dress position between port and the described stepped land of described drive end bearing bracket There are some sealing rings.
Wherein, described front plug, the passage of front plug, wall body, inner pressure test mouth, external pressure test mouth are all same with hanger Axle.
Wherein, described inner pressure test mouth and external pressure test mouth preferably connect respectively at described front plug and rear end cap one, Can also be tightly connected by other forms such as screw threads.
The invention changes existing hanger and dispatches from the factory the detection pattern of pressure-bearing in only testing tube, can effectively detect The bearing capacity of external pressure in hanger fluid cylinder part, improves product quality.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of the invention.
Wherein, plug before 1-;11-passage;The stepped land of 12-;13-sealing ring;Plug after 2-;3-wall body;4-front end Lid;5-rear end cap;6-inner pressure test mouth;Pressure passageway in 61-;7-external pressure test mouth;The outer pressure passageway of 71-;8-tests cavity; 9-hanger;91-fluid cylinder.
Detailed description of the invention
Below by combining accompanying drawing, the invention is further described.
A kind of embodiment of the invention structure is as it is shown in figure 1, include a kind of hanger fluid cylinder that the invention provides Interior external pressure testing tool, including:
Front plug 1, it is possible to be connected with hanger 9 forward end seal, and there is the passage 11 that connect internal with hanger 9;
Rear plug 2, it is possible to be connected with hanger 9 back-end sealing;
Wall body 3, is set in outside hanger 9, and two ends are sealedly connected with drive end bearing bracket 4 and rear end cap 5, described front end respectively The other end of lid 4 is sealingly fastened in the outer wall of described front plug 1, described rear end cap 5, wall body 3, drive end bearing bracket 4, front stifled 1, together with the outer wall of rear plug 2 and hanger 9 and fluid cylinder 91 thereof, together constitute a sealing and be surrounded on described Hanger 9 and the test cavity 8 of fluid cylinder 91 periphery thereof;
Inner pressure test mouth 6, is sealingly fastened in described front plug 1 front end, and has the passage 11 making front plug 1 with extraneous The interior pressure passageway 61 of connection;
External pressure test mouth 7, is sealingly fastened on described rear end cap 5, and has the external pressure making test cavity 8 be in communication with the outside Passage 71.
Wherein, described front plug 1 and rear plug 2 and described hanger 9 threaded sealing fit.Further, described front stifled 1 and the threaded engagement position of rear plug 2 and described hanger 9 be positioned at the inner side of described hanger 9.
Wherein, described drive end bearing bracket 4 and rear end cap 5 and described wall body 3 threaded sealing fit.Further, described drive end bearing bracket 4 With the outside that the threaded engagement position of rear end cap 5 with described wall body 3 is positioned at described wall body 3.
Wherein, the outer wall of described front plug 1 is provided with the stepped land 12 that card filled and fixed the port of described drive end bearing bracket 4, The external diameter of part of adjacent close hanger 9 side of described stepped land 12 it is positioned at more than described on described front plug 1 Distance between the port of drive end bearing bracket 4 (i.e. more than the external diameter of described stepped land 12), makes the described front plug 1 can Spacing by described drive end bearing bracket 4.Further, the card dress portion between port and the described stepped land 12 of described drive end bearing bracket 4 Some sealing rings 13 it are additionally provided with, it is ensured that sealing effectiveness between Wei.
Wherein, described front plug 1, the passage 11 of front plug 1, wall body 3, inner pressure test mouth 6, external pressure test mouth 7 are equal Coaxial with hanger 9.
Wherein, described inner pressure test mouth 6 and external pressure test mouth 7 are preferably respectively at described front plug 1 and rear end cap 5 one Body connects, it is also possible to be tightly connected by other forms such as screw threads.
One brief installation and the process of use of the invention are as follows: get out hanger 9 to be detected and fluid cylinder thereof 91, make hanger 9 front end be tightly connected with front plug 1, rear end is tightly connected with rear plug 2;By drive end bearing bracket 4 and wall After body 3 connects, the front plug 1 the most connected, hanger 9 and rear plug 2 are inserted in wall body 3, and makes The first half of front plug 1 stretches out in drive end bearing bracket 4, and the port of drive end bearing bracket 4 is blocked dress by stepped land 12 to be fixed and limits Position, is sealed by sealing ring 13 simultaneously;Finally rear end cap 5 is connected with wall body 3.By being connected with described front plug 1 The interior pressure passageway 61 of inner pressure test mouth 6 can test pressure-bearing in the pipe of fluid cylinder 91 to internal the suppressing of hanger 9, pass through The outer pressure passageway 71 of the external pressure test mouth 7 being connected with described rear end cap 5 is suppressed in test cavity 8 can test fluid cylinder 91 The outer bearing capacity of pipe.
The foregoing is only the preferred embodiment of the invention, not in order to limit the invention, all at this Within the spirit of bright creation and principle, any modification, equivalent substitution and improvement etc. made, should be included in present invention wound Within the protection domain made.

Claims (9)

1. an external pressure testing tool in hanger fluid cylinder, including:
Front plug, it is possible to be connected with hanger forward end seal, and there is the passage that connect internal with hanger;
Rear plug, it is possible to be connected with hanger back-end sealing;
Wall body, is set in outside hanger, and two ends are sealedly connected with drive end bearing bracket and rear end cap respectively, described drive end bearing bracket another One end is sealingly fastened in the outer wall of described front plug, described rear end cap, wall body, drive end bearing bracket, front plug, rear plug and The outer wall of hanger and fluid cylinder thereof together, together constitute a sealing and are surrounded on described hanger and the examination of fluid cylinder periphery thereof Test cavity;
Inner pressure test mouth, is sealingly fastened in described front plug front end, and has make the passage of front plug be in communication with the outside interior Pressure passageway;
External pressure test mouth, is sealingly fastened on described rear end cap, and has the outer pressure passageway making test cavity be in communication with the outside.
External pressure testing tool in a kind of hanger fluid cylinder the most according to claim 1, it is characterised in that stifled before described Head and rear plug and described hanger threaded sealing fit.
External pressure testing tool in a kind of hanger fluid cylinder the most according to claim 2, it is characterised in that stifled before described The threaded engagement position of head and rear plug and described hanger is positioned at the inner side of described hanger.
External pressure testing tool in a kind of hanger fluid cylinder the most according to claim 1, it is characterised in that described front end Lid and rear end cap and described wall body threaded sealing fit.
External pressure testing tool in a kind of hanger fluid cylinder the most according to claim 4, it is characterised in that described front end The threaded engagement position of lid and rear end cap and described wall body is positioned at the outside of described wall body.
External pressure testing tool in a kind of hanger fluid cylinder the most according to claim 1, it is characterised in that stifled before described The outer wall of head is provided with the stepped land that card filled and fixed the port of described drive end bearing bracket, and described front plug is positioned at described rank The external diameter of the part of the close hanger side that scalariform land is adjacent is more than the distance between the port of described drive end bearing bracket.
External pressure testing tool in a kind of hanger fluid cylinder the most according to claim 6, it is characterised in that described front end It is additionally provided with some sealing rings between card dress position between port and the described stepped land of lid.
External pressure testing tool in a kind of hanger fluid cylinder the most according to claim 1, it is characterised in that stifled before described Head, the passage of front plug, wall body, inner pressure test mouth, external pressure test mouth are all coaxial with hanger.
External pressure testing tool in a kind of hanger fluid cylinder the most according to claim 1, it is characterised in that described intrinsic pressure Test mouth and external pressure test mouth are connected with described front plug and rear end cap one respectively.
CN201620399937.5U 2016-05-05 2016-05-05 External pressure testing tool in a kind of hanger fluid cylinder Expired - Fee Related CN205719800U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620399937.5U CN205719800U (en) 2016-05-05 2016-05-05 External pressure testing tool in a kind of hanger fluid cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620399937.5U CN205719800U (en) 2016-05-05 2016-05-05 External pressure testing tool in a kind of hanger fluid cylinder

Publications (1)

Publication Number Publication Date
CN205719800U true CN205719800U (en) 2016-11-23

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ID=57303074

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620399937.5U Expired - Fee Related CN205719800U (en) 2016-05-05 2016-05-05 External pressure testing tool in a kind of hanger fluid cylinder

Country Status (1)

Country Link
CN (1) CN205719800U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108458933A (en) * 2018-01-17 2018-08-28 四川航宇机械制造有限公司 A kind of 300Mpa compression test under super high device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108458933A (en) * 2018-01-17 2018-08-28 四川航宇机械制造有限公司 A kind of 300Mpa compression test under super high device

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20161123

Termination date: 20210505

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