Well drilling method and device combining heat energy and mechanical energy

A kind of mechanical energy and drilling technology, which is applied in the application of thermal energy drilling, drilling equipment, drill bits, etc., can solve the problems that supporting equipment cannot realize industrial application, speed up the exploration and development of oil and gas resources, and the effect of mechanical penetration rate is not significant enough, so as to reduce drilling costs , Shorten the well construction period, easy track control effect

Active Publication Date: 2013-11-27
SINOPEC OILFIELD EQUIP CORP +1
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  • Abstract
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AI Technical Summary

Problems solved by technology

At present, the drilling depth of the drill bit used for drilling has been limited to about 12,000 meters, and it has been impossible to increase the drilling depth.
[0005] To sum up, conventional mechanical rock-breaking tools are not effective enough to increase the ROP, and the supporting equipment of the new rock-breaking

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  • Well drilling method and device combining heat energy and mechanical energy
  • Well drilling method and device combining heat energy and mechanical energy
  • Well drilling method and device combining heat energy and mechanical energy

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Embodiment Construction

[0037] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.

[0038] Such as figure 1 , figure 2 As shown, the drilling device combining thermal energy and mechanical energy of the present invention includes a fuel tank 1, a dual-channel joint 6, a compressor 10, a drill bit 13 and a drill pipe 9, and the two ends of the drill pipe 9 are respectively connected to the dual-channel joint 6 and the drill bit 13.

[0039] The dual-channel joint 6 includes a housing 38 and a fuel channel and an air channel arranged in the housing 38 , the fuel tank 1 is connected to the fuel channel through the fuel line 5 , and the compressor 10 is connected to the air channel through the air line 7 . The inner tube and the outer tube of the drill pipe 9 are respectively connected with the fuel chan...

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Abstract

The invention relates to a well drilling method and device combining heat energy and mechanical energy. The well drilling device comprises a fuel tank (1), a two-channel connector (6), a compressor (10), a drill bit (13) and a drill rod (9). Two ends of the drill rod (9) are connected with the two-channel connector (6) and the drill bit (13) respectively; the two-channel connector (6) comprises a housing (38), a fuel channel and an air channel, the fuel channel and the air channel are arranged inside the housing (38), the fuel tank (1) is connected with the fuel channel, and the compressor (10) is connected with the air channel; the drill bit (13) comprises a drill head body (18), an upper connector (16) arranged at the upper end of the drill bit body (18) and drill bit cutting teeth (21) arranged at the lower end of the drill bit body (18). The well drilling method and device combining the heat energy and the mechanical energy can achieve rock breaking by combining the combustion heat energy with the mechanical energy to significantly improve the rock-breaking efficiency; besides, well walls can be vitrified through the combustion heat energy to become smooth and hard, casing running and well cementation can even be omitted, and the drilling costs can be saved remarkably.

Description

technical field [0001] The invention relates to the field of well drilling, and more specifically relates to a drilling method and device combining thermal energy and mechanical energy. Background technique [0002] The drill bit is a tool that directly contacts the rock during the drilling process and breaks the rock through cutting and stamping. At present, mechanical energy is widely used in drilling engineering to break rocks. The drill bits used mainly include: roller cone bits, PDC bits, diamond bits, etc. The field application shows that the rock-breaking efficiency of the roller cone bit is low, and the footage of a single bit is small, which is prone to downhole accidents such as roller cone sticking; the PDC bit wears fast and is difficult to penetrate; the diamond bit also has slow drilling speed The problem of short service life has seriously affected the speed of oil and gas exploration and development. [0003] In order to improve drilling efficiency, petrole...

Claims

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Application Information

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IPC IPC(8): E21B7/14E21B10/00E21B21/16
Inventor 高文金张正禄刘运荣李红胡琼任小玲蒋洪亮李新年王四虎丁永伟
Owner SINOPEC OILFIELD EQUIP CORP
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