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Portable connecting bolt of B type tongs for well drilling

A portable, large pliers technology, applied in the direction of bolts, etc., can solve the problems of delaying the progress of drilling construction, hidden dangers of hand tools safety, etc., and achieve the effect of easy processing and convenient plugging and unplugging

Pending Publication Date: 2018-12-14
SINOPEC SSC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to corrosion, some drilling teams were unable to use the connecting pins of multiple tongs because they were bent, which delayed the progress of drilling construction.
In addition, the hand tools used to replace the pliers near the wellhead have become serious safety hazards.

Method used

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  • Portable connecting bolt of B type tongs for well drilling
  • Portable connecting bolt of B type tongs for well drilling
  • Portable connecting bolt of B type tongs for well drilling

Examples

Experimental program
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Effect test

Embodiment Construction

[0023] Such as Figure 1 to Figure 5 As shown, the convenient connection pin of the B-type tongs for drilling in the present invention includes a pin body 1, the upper end surface of the pin body 1 is provided with a lock pin slot 1a with an upper end opening, and the lock pin slot 1a is along the top surface of the pin body 1 The diameter of the cylinder extends and penetrates, and a cylindrical stainless steel lock pin 2 is inserted into the lock pin slot 1a, and the diameter of the lock pin 2 is 6mm. One end of the lock pin 2 is provided with a lock pin head 2a whose diameter is larger than the rest of the lock pin 2, and the other end of the lock pin 2 is provided with a lock pin opening groove 2b, and a dead bolt 3 is inserted in the lock pin opening groove 2b, and the dead bolt 3 The two sides of the lock tongue are oblong, the width of the lock tongue 3 is smaller than the diameter of the lock pin 2, the length of the lock tongue 3 is greater than the diameter of the lo...

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Abstract

The invention relates to a portable connecting bolt of B type tongs for well drilling. The upper end face of a bolt body is provided with a lockpin slot with an opening in the upper end, and the a cylindrical stainless steel lockpin is inserted into the lockpin slot in a connected manner; one end of the lockpin is provided with a lockpin head, and the other end of the lockpin is provided with a lockpin open slot; a spring bolt is inserted into the lockpin open slot in the connected manner, and the width of the spring bolt is smaller than the diameter of the lockpin; the length of the lockpin is larger than the diameter of the lockpin, and the spring bolt is connected to a spring bolt pin in an inserted manner; the two ends of the spring bolt pin are fixed in the two side walls of the lockpin open slot; a lockpin gland covers the lockpin slot, and the front and rear sides of the lower end face of the lockpin gland are welded with the upper end face of the bolt body; the middle part, inthe front and back direction, of the lockpin gland is provided with a protruding lockpin gland boss embedded into the upper end of the lockpin slot, and the lower end face of the lockpin gland boss isprovided with a boss groove which is sunken upwards; and the upper part of the lockpin is embedded into the boss groove. The bolt is easy to remove and install, and the working efficiency is improvedgreatly, and the accident that an object falls from a wellhead does not occur.

Description

technical field [0001] The invention relates to a B-type tong for drilling, in particular to a convenient connecting pin of a B-type tong for drilling, and belongs to the technical field of drilling tools. Background technique [0002] B-type tongs are commonly used and indispensable tools in tripping and tripping of oil wells. Due to the change of well diameter and the technical requirements of construction, the movable tong head of the tong must be frequently replaced to match the change of the diameter of the drilling tool. The movable tong head and the short tongs are connected by pins, and there are five pins on a hanging tong. The upper end face or the lower end face of the pin are all fixed with the body with anti-jump cotter pins. Frequent replacement of the movable tongs of the tongs during construction will cause damage to the anti-jump cotter pins. [0003] When the anti-jump cotter pin is in the locked state, the two claws at the opening end must be hammered a...

Claims

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Application Information

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IPC IPC(8): F16B19/02
CPCF16B19/02
Inventor 郭俊平潘俊青杨月毕磊孙静王晨亮
Owner SINOPEC SSC
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