Laser drill bit, laser drilling tool and rock breaking method for drilling

A technology of laser head and drill bit, which is applied in the fields of drilling and breaking rocks, and laser drilling tools. It can solve the problems of unreal-time observation and low drilling efficiency of hard rock formations, and achieve the effects of preventing blowout, reducing loss and improving efficiency.

Active Publication Date: 2017-01-25
PETROCHINA CO LTD
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Problems solved by technology

[0007] In order to solve the problem of low rock breaking efficiency of the laser drill bit, the present invention provides a laser drill bit, a laser drilling tool and a method for drilling and breaking rock. The laser drilling tool containing the laser drill bit is equipped with an underground night vision system and an uphole control system. The rock-breaking method solves the problems of low drilling efficiency in hard rock formations and real-time observation downhole, which greatly improves the rock-breaking efficiency, reduces the loss of drilling tools, and saves costs

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  • Laser drill bit, laser drilling tool and rock breaking method for drilling
  • Laser drill bit, laser drilling tool and rock breaking method for drilling

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[0030] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0031] A kind of laser drill, comprises drill body 3, contains camera 8 and a plurality of laser heads 1 in the drill body 3, also contains the adjustment frame 7 that can move camera 8 and / or laser head 1 in the drill body 3, the head of drill body 3 The part contains through holes corresponding to camera 8 and laser head 1, such as figure 1 shown.

[0032] The drill body 3 contains an installation cavity, and the adjustment frame 7 is arranged in the installation cavity, and the adjustment frame 7 is in contact with the inner wall of the drill body 3 . After the adjusting frame 7 is set, the adjusting frame 7 can drive the camera 8 and the laser head 1 to move back and forth along the axial...

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Abstract

The invention provides a laser drill, a laser drilling tool and a well drilling rock breaking method. The laser drill comprises a drill body (3); a camera (8) and a plurality of laser heads (1) are contained in the drill body (3); an adjusting bracket (7) capable of moving the camera (8) and / or the laser heads (1) is also contained in the drill body (3); through holes corresponding to the camera (8) and the laser heads (1) are formed in the head part of the drill body (3). The laser drilling tool containing the laser drill is provided with an underground night vision system and an aboveground control system; by the drilling rock breaking method, the problems that the hard rock stratum drilling and production efficiency is low, real-time observation cannot be performed underground, and the like are solved, the rock breaking efficiency is greatly increased, the loss of the drilling tool is reduced, and the cost is reduced.

Description

technical field [0001] The invention relates to the field of drilling engineering, in particular to a laser drill bit, a laser drilling tool containing the laser drill bit, and a drilling and rock breaking method using the laser drilling tool. Background technique [0002] In the 21st century, economic and social development further increases the demand for oil and gas resources, but oil and gas production is severely challenged by the serious shortage of reserve reserves and the increasing difficulty of exploitation. Due to the continuous development of oil and gas exploration and development to deep strata, complex geological conditions, deep burial, compact lithology, high hardness and strong abrasiveness lead to low mechanical penetration rate, long drilling cycle and high cost. Therefore, improving drilling efficiency, shortening drilling cycle, and improving drilling efficiency are major scientific research topics that the drilling engineering field is committed to sol...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B10/00E21B10/62E21B7/00E21B47/002E21B47/017E21B47/013E21B47/12
CPCE21B7/00E21B10/00E21B10/62E21B12/00E21B47/002E21B47/017E21B47/12
Inventor 韩彬张世一王勇李美艳李璐
Owner PETROCHINA CO LTD
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