CN201673108U - Oil pipe corrosion test device - Google Patents

Oil pipe corrosion test device Download PDF

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Publication number
CN201673108U
CN201673108U CN2010201757961U CN201020175796U CN201673108U CN 201673108 U CN201673108 U CN 201673108U CN 2010201757961 U CN2010201757961 U CN 2010201757961U CN 201020175796 U CN201020175796 U CN 201020175796U CN 201673108 U CN201673108 U CN 201673108U
Authority
CN
China
Prior art keywords
test
oil pipe
corrosion
connection
test piece
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 - Lifetime
Application number
CN2010201757961U
Other languages
Chinese (zh)
Inventor
刘长宇
王峰
黄天杰
尹国君
刘同富
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.)
Petrochina Co Ltd
China Petroleum and Natural Gas Co Ltd
Original Assignee
China Petroleum and Natural Gas 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 China Petroleum and Natural Gas Co Ltd filed Critical China Petroleum and Natural Gas Co Ltd
Priority to CN2010201757961U priority Critical patent/CN201673108U/en
Application granted granted Critical
Publication of CN201673108U publication Critical patent/CN201673108U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to an oil pipe corrosion test device, which is characterized in that a test rod (5) made of long rod-shaped insulation materials is arranged at the lower end of an upper joint (2) arranged in a protective cover (6), and a test sheet (4) is arranged on the outer wall of the test rod (5) through a rivet (3). The utility model has the advantages of simple structure and convenient use, can ensure the sufficient contact of the test sheet (4) and corrosion media when being used in the underground corrosion degree work of an oil pipe of a gas extraction well, has good heat insulation effect with an oil pipe post, and can really reflect the corrosion degree of the oil pipe.

Description

A kind of tube corrosion proving installation
Technical field: the utility model relates to a kind of oil field subsurface tool, especially for a kind of tube corrosion proving installation of oil recovery, gas recovery well.
Background technology: before the utility model, each oil field generally is being loaded with under oil pipe (test barrel) lower going-into-well of test piece, behind the work certain hour, tripping out from the down-hole it is carried out assay determination for estimating the extent of corrosion of oil pipe in underground work; Because the test piece of this device is mounted on the tubing wall, particularly is being used for the test of all kinds of gas recovery wells, test piece can not fully contact with corrosive medium, and its insulation effect is poor, often can not truly reflect the degree that oil pipe is corroded in underground work.
Summary of the invention: the purpose of this utility model is: for recover the oil in the oil field, gas recovery well provides a kind of tube corrosion proving installation, because the test piece of this device is mounted on the reference test bar that hangs in the oil pipe, can guarantee that test piece fully contacts with corrosive medium, and have the good insulation effect with tubing string, therefore can truly reflect the degree that oil pipe is corroded in underground work.
The purpose of this utility model realizes by following measure: a kind of tube corrosion proving installation, comprise rope socket, top connection, rivet, test piece, guard shield, plug, and the tubular guard shield upper end that is processed with open-work on the tube wall connects rope socket, lower end connection plug by top connection, it is characterized in that the interior top connection lower end of guard shield also is equipped with the reference test bar of a stock shape, is equipped with test piece by rivet on the outer wall of reference test bar.
The utility model is simple in structure, easy for installation, be used for estimating the oil pipe of oil recovery, gas recovery well in the work of downhole corrosion degree, can guarantee that test piece fully contacts with corrosive medium, and have the good insulation effect, can truly reflect the degree that oil pipe is corroded with tubing string.
Description of drawings: Fig. 1 is the structural representation of tube corrosion proving installation.
Embodiment: the tube corrosion proving installation is to be made of rope socket 1, top connection 2, rivet 3, test piece 4, reference test bar 5, guard shield 6, plug 7 etc., guard shield 6 upper ends that are processed with the tubular of open-work on the tube wall connect rope socket 1, lower end connection plug 7 by top connection 2, top connection 2 lower ends also are equipped with the reference test bar 5 of a stock shape insulating material in the guard shield 6, by rivet 3 test piece 4 are installed on the outer wall of reference test bar 5.
The principle of work and the using method of beam hanger corrosion test device are: earlier this device is invested in receiving position predetermined in the downhole oil tubing string before using; In the test process, the corrosive medium of down-hole can fully contact with test piece 4 with open-work on the guard shield 6 by plug 7, owing to the insulating effect of reference test bar 5, guaranteed that corrosion test is not subjected to electrochemical interference, thereby can truly reflect the extent of corrosion that is subjected to of downhole oil tubing string simultaneously.After test is finished, can again the receiving position of this device from the down-hole be proposed, then can carry out assay to test piece 4.

Claims (1)

1. tube corrosion proving installation, comprise rope socket, top connection, rivet, test piece, guard shield, plug, and the tubular guard shield upper end that is processed with open-work on the tube wall connects rope socket, lower end connection plug by top connection, it is characterized in that: the top connection lower end also is equipped with the reference test bar of a stock shape in the guard shield, by rivet test piece is installed on the outer wall of reference test bar.
CN2010201757961U 2010-04-26 2010-04-26 Oil pipe corrosion test device Expired - Lifetime CN201673108U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010201757961U CN201673108U (en) 2010-04-26 2010-04-26 Oil pipe corrosion test device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010201757961U CN201673108U (en) 2010-04-26 2010-04-26 Oil pipe corrosion test device

Publications (1)

Publication Number Publication Date
CN201673108U true CN201673108U (en) 2010-12-15

Family

ID=43330520

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010201757961U Expired - Lifetime CN201673108U (en) 2010-04-26 2010-04-26 Oil pipe corrosion test device

Country Status (1)

Country Link
CN (1) CN201673108U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104234690A (en) * 2014-07-04 2014-12-24 中国石油天然气股份有限公司 Grating optical fiber corrosion monitoring sensor
CN108226017A (en) * 2016-12-22 2018-06-29 中国石油天然气股份有限公司 Simulate the device and method of oil/gas well corrosive environment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104234690A (en) * 2014-07-04 2014-12-24 中国石油天然气股份有限公司 Grating optical fiber corrosion monitoring sensor
CN108226017A (en) * 2016-12-22 2018-06-29 中国石油天然气股份有限公司 Simulate the device and method of oil/gas well corrosive environment

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Legal Events

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C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20101215