Square bushing measuring instrument for drilling tools
A surveying instrument and core bushing technology, which is applied in the field of surveying instruments, can solve the problems of shortening the service life of kelly pipes, reducing oil well operation efficiency, large gap between square bushings and kelly pipes, etc., and achieves simple structure, improved service life, and improved efficiency effect
Active Publication Date: 2017-08-08
SHANXI FENGLEI DRILLING TOOLS
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Problems solved by technology
[0002] Roller square bushing is a wellhead tool commonly used in oil drilling at present. After the square bushings used in major oil fields and well sites are worn out, some of them have no means of detecting roller square bushings, resulting in square bushings and kelly If the clearance of the kelly is too large, the other drill pipe will be squeezed rapidly, which will seriously shorten the life of the kelly and reduce the efficiency of the oil well operation
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[0014] The present invention will be further described below in conjunction with the accompanying drawings of the description.
[0015] A square bushing measuring instrument for drilling tools, such as figure 1 As shown, it includes a hexagonal body 1 and a handle 4, the hexagonal body 1 is connected with the handle 4 through a nut 3, a spacer 2, and the shape of the handle is "Π". A circular through hole is provided in the middle of the hexagonal body 1, and the six faces of the hexagonal body are divided into four detection surfaces and two clamping surfaces 5, and the four detection surfaces are parallel to the center line of the hexagonal body. It is a straight face, and the two clamping surfaces 5 are symmetrically arranged and inclined to the center line of the hexagonal body. is 134mm, and the height A of the hexagonal body is 300±5mm. The hardness of the hexagonal body is 285-340HB.
[0016] The included angle between two adjacent sides of the hexagonal body is β=12...
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The invention relates to a square heart measuring instrument for drilling tools, which includes a hexagonal body and a handle, the hexagonal body is connected with the handle through nuts and spacers, and the hexagonal body is divided into four detection surfaces and two One clamping surface, the four detection surfaces are straight faces relative to the center line of the hexagonal body, the two clamping surfaces are inclined planes relative to the center line of the hexagonal body, and the size of the hexagonal body is the largest near the handle end, The other end is small in size. The invention is simple in structure, easy to use, can quickly and easily detect whether the roller square bushing is qualified, reduces the wear of the kelly due to the unqualified square bushing, effectively improves the service life of the kelly, and further improves the Efficiency of oil well operations.
Description
technical field [0001] The invention relates to a measuring instrument, in particular to a square core measuring instrument for drilling tools. Background technique [0002] Roller square bushing is a wellhead tool commonly used in oil drilling at present. After the square bushings used in major oil fields and well sites are worn out, some of them have no means of detecting roller square bushings, resulting in square bushings and kelly If the gap is too large, the counter drill pipe will be squeezed rapidly, which will seriously shorten the life of the kelly pipe and reduce the efficiency of oil well operations. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a square bushing measuring instrument for drilling tools. The measuring instrument can quickly and easily detect the square bushing of the rollers regularly, carry out maintenance in time, and effectively improve the service life of the kelly. [0004] The ...
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IPC IPC(8): G01B5/14
Inventor 牛利宁王辉铭王国杰刘军燕马欣华乔冬梅喻仲珏杨锦荣张剑
Owner SHANXI FENGLEI DRILLING TOOLS