CN202280438U

CN202280438U - Cable center-spear for borehole operations

Info

Publication number: CN202280438U
Application number: CN201120356397XU
Authority: CN
Inventors: 赵法武; 刘洪成; 赵伟华; 梁勇
Original assignee: 赵法武
Priority date: 2011-09-22
Filing date: 2011-09-22
Publication date: 2012-06-20
Anticipated expiration: 2021-09-22

Abstract

The utility model relates to a salvaging tool, and particularly relates to a cable center-spear for borehole operations. The technical scheme of the utility model is as follows: the cable center-spear mainly comprises a connector, an anti-clamp guide nut, a hook body, a hook, a pin and a return spring, wherein the connector is in threaded connection with the hook body, the anti-clamp guide nut is fixed at the joint of the hook body and the connector, a rectangular slot is arranged below the hook body, and the hook is fixed in the rectangular slot by the pin and the return spring. The cable center-spear provided by the utility model has the advantages that: the cable center-spear can effectively overcome or avoid defects or shortcomings existing in the prior art, well adapt to the borehole operations of barefoot wells, and effectively solve the un-clamping salvaging operations of the barefoot wells, so that the borehole operations can be performed normally, and the operating efficiency of the operations is improved.

Description

The underground work cable drags for lance outward

Technical field

The utility model relates to a kind of oilfield downhole operation equipment, and particularly a kind of underground work cable drags for lance outward.

Background technology

The oil exploitation open hole well is more and more at present, but open hole well well workover kit is gone back imperfection, continues to use the straight well instrument basically.Because the particularity of open hole well wellbore trajectory; So adopt conventional downhole tool just to exist many being inconvenient to reach very big risk to the open hole well well workover; Particularly, often cause down-hole accident complicated, influence the process of underground work for cable in open hole well and the sleeve pipe and various rope salvaging.

Summary of the invention

The purpose of the utility model is exactly the above-mentioned defective that exists to prior art; Provide a kind of underground work cable to drag for lance outward; The shortcoming or the deficiency that can overcome effectively or avoid existing in the above-mentioned prior art; Adapt to the underground work of open hole well well, solve the operation of open hole well unfreezing fishing effectively, underground work is normally carried out.

Its technical scheme is: mainly draw cap, hook body, hook, pin, back-moving spring by joint, anti-sticking and form; Joint is through the hook body that is threaded; Cap is drawn in the junction of hook body and joint fixedly anti-sticking; The below of described hook body is provided with rectangular slot, passes through pin and back-moving spring fixation hooks in the rectangular slot.

Above-mentioned hook is more than two groups.

It is little that above-mentioned anti-sticking draws the cap upper opening, and lower openings is big.

The beneficial effect of the utility model is: the shortcoming or the deficiency that can overcome effectively or avoid existing in the above-mentioned prior art; Adapt to the underground work of open hole well well; Solve the operation of open hole well unfreezing fishing effectively, underground work is normally carried out, improve job run efficient.

Description of drawings

Accompanying drawing 1 is the structural representation of the utility model;

Among the last figure: joint 1, anti-sticking draw cap 2, hook body 3, hook 4, pin 5, back-moving spring 6.

The specific embodiment

In conjunction with accompanying drawing 1, the utility model is done further to describe:

The utility model mainly draws cap 2, hook body 3, hook 4, pin 5, back-moving spring 6 by joint 1, anti-sticking and forms; Joint 1 is through the hook body 3 that is threaded; Cap 2 is drawn in the junction of hook body 3 and joint 1 fixedly anti-sticking; The below of described hook body 3 is provided with rectangular slot, passes through pin 5 and back-moving spring 6 fixation hooks 4 in the rectangular slot; Hook 4 is more than two groups, and it is little that described anti-sticking draws cap 2 upper openings, and lower openings is big.

During use, when hook passes trouble of lost tool in hole, rely on the elastic force of back-moving spring that hook is ejected; Realization is fished for junk; The shortcoming or the deficiency that can overcome effectively or avoid existing in the above-mentioned prior art adapt to the underground work of open hole well well, solve the operation of open hole well unfreezing fishing effectively; Underground work is normally carried out, improved job run efficient.

Claims

1. a underground work cable drags for lance outward; It is characterized in that: mainly draw cap (2), hook body (3), hook (4), pin (5), back-moving spring (6) and form by joint (1), anti-sticking; Joint (1) is through the hook body (3) that is threaded; Cap (2) is drawn in the junction of hook body (3) and joint (1) fixedly anti-sticking, and the below of described hook body (3) is provided with rectangular slot, passes through pin (5) and back-moving spring (6) fixation hooks (4) in the rectangular slot.

2. underground work cable according to claim 1 drags for lance outward, it is characterized in that: described hook (4) is more than two groups.

3. underground work cable according to claim 1 drags for lance outward, it is characterized in that: it is little that described anti-sticking draws cap (2) upper opening, and lower openings is big.