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Method and system for preventing jamming of drilling tool

A sticking and suspended weight technology, which is applied to the automatic control system of drilling, drilling equipment, earthwork drilling and production, etc., can solve the problems of equipment damage, cost increase, and drilling speed reduction, so as to avoid equipment damage and prevent sticking , The effect of accelerating the drilling speed

Inactive Publication Date: 2017-03-15
SICHUAN HONGHUA ELECTRIC
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art, provide a method and system for preventing pipe sticking, and solve the problems of equipment damage, cost increase and drilling speed reduction caused by pipe sticking in the drilling process of the prior art

Method used

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  • Method and system for preventing jamming of drilling tool

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Embodiment Construction

[0020] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0021] Such as figure 1 As shown, a method for preventing drill sticking, the steps of the method are as follows:

[0022] S1. Set the winch suspension weight parameters;

[0023] S2. Automatically record the suspension weight of the winch stop state through PLC;

[0024] S3. Comparing the suspension weight increment and the set suspension weight parameter in real time, and giving an early warning prompt according to the comparison result.

[0025] The suspended weight parameters include the lifting limit value of the suspended weight and the lowering limit value of the suspended weight.

[0026] Said suspension weight increment = suspension weight in stop state - suspension weight in real time - overweight value generated by acceleratio...

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Abstract

The invention discloses a method for preventing jamming of a drilling tool. The method for preventing jamming of the drilling tool is characterized by comprising the steps of S1, arranging winch hanging load parameters; S2, automatically recording a winch hanging load in a stopping state through a PLC; S3, conducting real-time comparison on a hanging load increment and the set hanging load parameters, and conducting an early warning prompt according to the comparison result. The method for preventing jamming of the drilling tool can effectively prevent jamming of the drilling tool in the well drilling process, avoid damage of a device, and save jam release cost and expedite the well drilling speed.

Description

technical field [0001] The invention relates to the technical field of oil drilling prevention of pipe sticking, in particular to a method and system for preventing pipe sticking. Background technique [0002] During the drilling process, the phenomenon that the drilling tool is trapped in the well due to various reasons and cannot move freely is called pipe sticking. Due to the structural conditions of the formation structure, poor drilling fluid performance and improper operation of the driller, etc., pipe sticking may be caused; the main types of pipe sticking are keyway sticking, sand setting sticking, well collapse sticking, differential pressure sticking, diameter shrinkage Drill sticking, falling object sticking, sand bridge sticking, mud bag sticking, drilling tool falling off and next stop sticking, etc. [0003] If a stuck pipe occurs during the drilling process, it may not only cause damage to the equipment and increase the cost, but also greatly reduce the drill...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B44/00
CPCE21B44/00
Inventor 张斤
Owner SICHUAN HONGHUA ELECTRIC
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