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Drilling tool and application thereof

A technology for drilling tools and pins, which is applied in the direction of drill pipes, drill pipes, drilling equipment, etc., which can solve the problems of high cost, flattening of drilling tools, failure of downhole dynamic drilling tools, etc., and achieve simple structure and simplified construction procedures Effect

Inactive Publication Date: 2015-08-05
黎然 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for the existing air-inflated mode of the main body, because there are air bubbles in the main body, the hydrodynamic force cannot be effectively transmitted, and there will be two fatal flaws: (1) The downhole dynamic drilling tool cannot work normally, and the greater the gas content of the drilling fluid in the drill string, The torque of the downhole motor is smaller; (2) The conventional MWD (downhole measurement while drilling) cannot work normally, and the signal attenuation is large
[0003] Recently, a new type of double-layer drilling tool has appeared. There is no filling between the inner and outer layers of this double-layer drilling tool, and gas is injected through the gap between the inner and outer layers during use. Compared with the previous technology, this technology has made significant progress, but it is still It has the following disadvantages: (1) The structure is complex and expensive; (2) It is found that the surface strength is not enough in field use. Because the body is hollow, when using hydraulic tongs or hydraulic cat heads to make and break, the drilling tool may be squeezed flat. situation

Method used

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  • Drilling tool and application thereof
  • Drilling tool and application thereof
  • Drilling tool and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Such as figure 1 As shown, the drilling tool of the present invention includes a body 11 and a first male buckle 12 and a first female buckle 13 that match each other. The first male buckle 12 and the first female buckle 13 are respectively located at two ends of the body 11 . When in use, the first male buckle 12 at one end of the drilling tool is connected with the female buckle of the drilling tool (not shown) adjacent to the first male buckle 12 end after snapping together. Similarly, the first male buckle at the other end of the drilling tool A female button 13 is connected with the male button of the drilling tool (not shown) adjacent to the end of the first female button 13 after being buckled, and the drilling tools are connected in this way to form a drill string.

[0044] Such as figure 2 As shown in , the body 11 is provided with at least one passage 111, and the number of passages 111 is preferably two.

[0045] The following will refer to Figure 3 to F...

Embodiment 2

[0049] Such as Figure 9 As shown, the drilling tool of the present invention includes a body 11 and a second male buckle 16 and a second female buckle 17 that match each other. The second male buckle 16 and the second female buckle 17 are respectively located at two ends of the body 11 . When in use, the second male buckle 16 at one end of the drilling tool is connected with the female buckle of the drilling tool (not shown) adjacent to the second male buckle 16 end after snapping together. Similarly, the second male buckle at the other end of the drilling tool The two female snaps 17 are connected with the male snaps of the drilling tools (not shown) adjacent to the second female snap 17 end, and the drilling tools are connected in this way to form a drill string.

[0050] Such as Figure 10 As shown in , the body 11 is provided with at least one passage 111, and the number of passages 111 is preferably two.

[0051] The following will refer to Figure 11 to Figure 15 The...

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Abstract

The invention provides a drilling tool which comprises a body, a male fastener and a female fastener. A passage is arranged on the body, the drilling tool has the advantages that the drill tool is simple in structure, smoothness of the passage inside the drilling tool cannot be affected no matter how many circles the drilling tool rotates for during screwing under any condition, construction procedures in the use process can be simplified, and the drilling tool can perform underground MWD (measurement while drilling) power supply and signal transmission by the aid of an electrifying ring.

Description

technical field [0001] The invention belongs to the technical field of mechanical manufacturing, and in particular relates to a new type of drilling tool suitable for pneumatic drilling, electric energy and signal transmission. Background technique [0002] Since 2000, underbalanced drilling has been paid more and more attention in the oil drilling industry. Underbalanced drilling can prevent fluids such as drilling fluid from entering the production layer or less, reduce reservoir pollution and increase production, which is especially important for low-pressure, low-permeability, and low-abundance oil and gas reservoirs in my country. In addition, underbalanced drilling can properly reduce the hydrostatic column pressure in the wellbore, reduce the occurrence of engineering accidents such as lost circulation, and can effectively reduce the holding effect of drilling fluid, thereby increasing the ROP, completing drilling tasks quickly and with high quality, and improving dri...

Claims

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Application Information

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IPC IPC(8): E21B17/18E21B17/042E21B47/12
CPCE21B17/18E21B17/028E21B17/0423E21B47/12
Inventor 黎然王俊凯黎岳沈睿黎建华
Owner 黎然