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Rock burst drilling device based on pressurizer and rock breaking method

A technology of supercharger and supercharger shell, which is applied in the direction of drilling with liquid/gas jet, etc., can solve the problems of low rock breaking efficiency and short service life of the drill bit, so as to improve the rock breaking efficiency, reduce the requirements, and reduce internal cracks. extended effect

Active Publication Date: 2016-12-07
成都欧维恩博石油科技有限公司
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Problems solved by technology

[0007] The object of the present invention is to provide a supercharger-based rockburst drilling device, which aims to solve the problems of low rock-breaking efficiency and short service life of the drill bit of the existing drilling device

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  • Rock burst drilling device based on pressurizer and rock breaking method
  • Rock burst drilling device based on pressurizer and rock breaking method
  • Rock burst drilling device based on pressurizer and rock breaking method

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Embodiment Construction

[0032]The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0033] see Figure 1-Figure 10 , the embodiment of the present invention provides a supercharger-based rockburst drilling device 1, which is usually used in conjunction with a drill bit 2 to achieve the purpose of drilling, including a vertically arranged supercharger housing 11 and a supercharger The upper joint 12 of the upper port of the booster housing 11 is usually threadedly connected between the upper joint 12 and the upper port of the supercharger housi...

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Abstract

The invention relates to drilling engineering technologies, and provides a rock burst drilling device based on a pressurizer. The rock burst drilling device based on the pressurizer comprises a pressurizer shell and an upper joint. The pressurizer shell is provided with a normal pressure pipe and a high pressure pipe. An upper valve plate, a lower valve plate and a driving part are arranged in the pressurizer shell. A first through hole is vertically formed in the upper valve plate, and a second through hole and a third through hole are formed in the lower valve plate. A piston and a piston rod are further arranged inside the pressurizer shell. A first chamber is formed between the piston and the lower valve plate. A second chamber is formed between the piston and the pressurizer shell. A third chamber is formed between the piston rod and the high pressure pipe. A first control valve is arranged inside the high pressure pipe. The third chamber communicates with the outer side of the pressurizer shell through a second control valve. The invention further provides a rock breaking method involving the rock burst drilling device. Water bombs are jet periodically at the position of the high pressure pipe so as to bombard rock, the rock breaking efficiency is improved through a rock burst inducing mode, the purpose of high-speed drilling can be achieved, and the reliability and service life of a drill bit can be guaranteed.

Description

technical field [0001] The invention relates to drilling engineering technology in oil and gas exploration and development, in particular to a supercharger-based rockburst drilling device and a rock breaking method. Background technique [0002] Drilling accounts for more than 50% of the cost of oil and gas development, which requires large investment and high risk. Improving drilling efficiency is the best way to reduce the cost of exploration and development, and it is also an important goal that oil companies, drilling contractors and technical service companies have always pursued. In the past two years, international oil prices have dropped significantly and competition has become increasingly fierce. Only by paying more attention to efficient drilling, reducing costs and increasing efficiency, and possessing core technologies can oil companies gain competitive advantages and survive the "cold winter". Obviously, increasing drilling speed and reducing drilling cost are ...

Claims

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Application Information

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IPC IPC(8): E21B7/18
CPCE21B7/18
Inventor 魏小梅
Owner 成都欧维恩博石油科技有限公司
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