CN205135454U

CN205135454U - Prevent oil pipe plug of sleeve pipe wearing and tearing

Info

Publication number: CN205135454U
Application number: CN201520710165.8U
Authority: CN
Inventors: 乔华伟; 冯昆明; 王罡; 徐贵东; 杨冠
Original assignee: SHAANXI DINGHE YUANRUI ENVIRONMENT ENGINEERING Co Ltd
Current assignee: SHAANXI DINGHE YUANRUI ENVIRONMENT ENGINEERING Co Ltd
Priority date: 2015-09-15
Filing date: 2015-09-15
Publication date: 2016-04-06
Anticipated expiration: 2025-09-15

Abstract

The utility model provides a prevent oil pipe plug of sleeve pipe wearing and tearing, including the nylon abrasionproof sheath that the steel was personally experienced sth. Part of the body the plug and was in the same place rather than the casting, steel body plug links to each other with the screen pipe lower extreme, personally experiences sth. Part of the body the plug with continuous through internal thread and screen pipe with the steel, the screen pipe passes through oil -well pump and oil pipe and links to each other, and it is intraductal that oil pipe is in the cover, because the outer pipe diameter that the diameter ratio oil pipe of nylon abrasionproof sheath runs through is big, steel body plug and abrasionproof sheath be whole to be connected and to go into the well after bottom at the oil pipe cluster again, can avoid oil pipe the hard to direct contact firmly of terminal surface edge and cover inside pipe wall of going into the well under the in -process, and reducing wear lengthens sleeve pipe life.

Description

A kind of oil pipe plug preventing casing wear

Technical field

The utility model relates to a kind of plug, is specifically related to a kind of oil pipe plug preventing casing wear.

Background technology

At present, due to the needs of oil field operation, oil pipe needs repeatedly to go into the well and take out.In the process of oil pipe at the bottom of lower going-into-well, due to hole deviation, oil pipe lower surface can contact with internal surface of sleeve pipe to produce weares and teares, and causes Service Life of Casing greatly to reduce.

Summary of the invention

For overcoming above-mentioned the deficiencies in the prior art, the purpose of this utility model there are provided a kind of oil pipe plug preventing casing wear, effectively prevents wear sleeve in the process of oil pipe lower going-into-well, extends Service Life of Casing, there is structure simple, feature easy to use.

For achieving the above object, the technical solution adopted in the utility model is: a kind of oil pipe plug preventing casing wear, includes steel body plug and the anti-wear sheath together with it is cast in, and steel body plug is connected with screen casing.

The inwall of described steel body plug link is provided with internal thread.

Described anti-wear sheath is hemisphere structure, and its diameter is greater than the outer tube diameter of oil pipe.

Described anti-wear sheath adopts nylon material.

The beneficial effects of the utility model:

Compared with prior art, the utility model is owing to being provided with steel body plug and nylon anti-wear sheath in oil pipe pipe string lower end, and effectively prevent oil pipe and to go into the well the hard to firmly directly contacting of lower surface seamed edge and internal surface of sleeve pipe in process, reduce wear prolongation Service Life of Casing.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Fig. 2 is application schematic diagram of the present utility model.

Detailed description of the invention

Below in conjunction with accompanying drawing, structural principle of the present utility model and operating principle are described in further detail.

See Fig. 1, a kind of oil pipe plug preventing casing wear, include steel body plug 1 and the nylon anti-wear sheath 2 together with it is cast in, steel body plug 1 is connected with screen casing 5 lower end.

The inwall of described steel body plug 1 link is provided with internal thread.

Described nylon anti-wear sheath 2 is hemisphere structure, and its diameter is greater than the outer tube diameter of oil pipe 3.

Operating principle of the present utility model is:

See Fig. 2, during use, steel body plug 1 is connected with screen casing 5 with by internal thread; Screen casing is connected with oil pipe 3 by oil well pump 4, oil pipe is in sleeve pipe 6, the outer tube diameter run through than oil pipe due to the diameter of nylon anti-wear sheath is large, steel body plug 1 and anti-wear sheath 2 be integrally attached to oil pipe string bottom after go into the well again, oil pipe can being avoided to go into the well the hard to firmly directly contacting of lower surface seamed edge and internal surface of sleeve pipe in process, reducing wear.

Claims

1. prevent an oil pipe plug for casing wear, it is characterized in that, include steel body plug (1) and the anti-wear sheath together with it is cast in (2);

The inwall of described steel body plug (1) link is provided with internal thread;

Described anti-wear sheath (2) is hemisphere structure, and its diameter is greater than the outer tube diameter of oil pipe.

2. a kind of oil pipe plug preventing casing wear according to claim 1, is characterized in that, described anti-wear sheath adopts nylon material.