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Drilling tool safety device while drilling

A safety device and drilling-while-drilling technology, applied in drilling tools, drilling equipment, earthwork drilling and production, etc., can solve problems such as property loss, drilling safety hazards, advanced tool damage, etc.

Active Publication Date: 2016-03-16
四川伟创石油装备制造有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Especially in oil drilling directional wells and horizontal wells, the damage or burial of advanced tools at home and abroad due to sticking occurs, which brings serious safety hazards and huge property losses to drilling.

Method used

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  • Drilling tool safety device while drilling
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  • Drilling tool safety device while drilling

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Embodiment Construction

[0034] The present invention will be described in further detail below through specific implementation examples and in conjunction with the accompanying drawings.

[0035] First of all, before describing the specific implementation, in the embodiment provided by the present invention, it is stipulated that the female end of the tool is the upper end, and the male end is the lower end.

[0036] Such as figure 1 As shown, the drilling tool safety device provided in this embodiment mainly includes three parts: the outer casing assembly, the mandrel assembly and the sealing assembly;

[0037] Its specific structure includes upper shell 1, lower joint 2, mandrel body 3, spring 4, spring seat 5, pin 6; combined cap 7, spline body 8, piston body 9; lower joint outer seal 11, core Shaft seal 12, piston body seal 13, lower joint inner seal 14.

[0038] About the outer casing assembly: the outer casing assembly includes an upper casing, a pin, and a lower joint, and the lower casing a...

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Abstract

The invention provides a drilling tool safety device used during drilling. The drilling tool safety device comprises the elements such as an outer shell assembly, a mandrel assembly and a sealing assembly. The outer shell assembly comprises an upper shell and a lower connector. The mandrel assembly comprises a mandrel, a pressing cap, a spline body and a piston body. The sealing assembly comprises a mandrel sealing piece, a piston body sealing piece, a lower connector outer sealing piece and a lower connector inner sealing piece. When a drilling tool conducts drilling work normally, and through a locking structure inside the drilling tool safety device used during drilling, drilling can be conducted stably, and automatic releasing cannot occur. When the accident that the drill tool is stuck in a well, the drilling tool safety device used during drilling can be backed off (released) from the position of a connecting thread of a body, a female connector and the drilling tool or an instrument can be pulled out, the situation that the advanced tool or the instrument are damaged or buried at the bottom of a well can be avoided to the maximum degree and economic losses are reduced.

Description

technical field [0001] The invention belongs to the technical field of underground resource drilling and production engineering equipment, and in particular relates to a drilling tool safety device while drilling. Background technique [0002] With the increasing demand for energy in the country, various complex well structures such as deep wells, ultra-deep wells, directional wells, and horizontal wells are increasingly used. At the same time, they are faced with complex downhole conditions, many accidents, and long drilling cycles. , High cost, advanced drilling and logging tools are all dependent on imports, expensive. Among them, in the operation process of drilling construction, the frequent occurrence of downhole drilling tool accidents is a prominent problem, and pipe sticking is almost an inevitable accident when drilling into complex formations. Moreover, in the process of drilling construction, pipe sticking is one of the drilling accidents with the highest freque...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B7/00E21B12/00
Inventor 王岳李子杰刘湘华胡波
Owner 四川伟创石油装备制造有限公司
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