Unlock instant, AI-driven research and patent intelligence for your innovation.

An impact piston and a self-excited compound impact drilling tool using the same

A technique of impacting pistons and percussion drilling, which is applied to drilling equipment, driving devices for drilling in boreholes, earthwork drilling and production, etc. It can solve the problems of inconspicuous speed-up effect and single impact mode of tools, so as to improve the drilling speed and protect the drill bit. Effect

Active Publication Date: 2020-04-24
BC P INC CHINA NAT PETROLEUM CORP +1
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The two types of tools have achieved good results in increasing the drilling speed in deep layers, but the tool impact method is single, and the speed-up effect is not obvious in difficult-to-drill formations such as gravel and quartz content

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • An impact piston and a self-excited compound impact drilling tool using the same
  • An impact piston and a self-excited compound impact drilling tool using the same
  • An impact piston and a self-excited compound impact drilling tool using the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0054] The present invention will be described below based on examples, but it should be noted that the present invention is not limited to these examples. In the following detailed description of the invention, some specific details are set forth in detail. However, the present invention can be fully understood by those skilled in the art about the parts that are not described in detail.

[0055] In addition, those of ordinary skill in the art should understand that the provided drawings are only for illustrating the objects, features and advantages of the present invention, and the drawings are not actually drawn to scale.

[0056] At the same time, unless the context clearly requires, the words "include", "include" and other similar words in the entire specification and claims should be interpreted as an inclusive meaning rather than an exclusive or exhaustive meaning; that is, "include but not limited to the meaning of ".

[0057] figure 1 It is a structural schematic d...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an impact piston and a self-excited composite impact drilling tool applying the same. The problem that an existing drilling tool is single in impact mode is solved. The impactpiston adopted by the drilling tool is provided with a drilling fluid upper flow channel and a drilling fluid lower flow channel. Drilling fluid transforms the liquid pressure through the two flow channels into mechanical energy of reciprocating movement of the piston. The piston is provided with a helical lower end face. The impact piston reciprocates to hammer a conduction joint. Through the helical surfaces of the impact piston and the impact conduction joint, axial impact force is converted into axial impact force and circumferential impact force of a drill bit, composite impact of the tool is achieved, the drill bit is protected, and the rate of penetration of drilling is increased.

Description

technical field [0001] The invention relates to a drilling tool, in particular to a deep drilling speed-increasing tool. Background technique [0002] The rock in the deep formation is hard and the grinding extreme value is high. In the drilling development, there are characteristics such as less footage per bit, short life of the bit, and low ROP. Among the speed-up tools for deep drilling, one is the speed-up tool that generates circumferential impact, which can reduce the stick-slip of the drill bit to protect the drill bit and improve the service life of the drill bit; the other is the speed-up tool that generates axial impact, which is assisted by adding vibration and shock to the drill bit Break rock and increase ROP. The two types of tools have achieved good results in increasing the drilling speed in deep layers, but the tool impact method is single, and the effect of increasing the speed in difficult-to-drill formations such as gravel and quartz content is not obvi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): E21B4/14
CPCE21B4/14
Inventor 李博李相勇郑殿富纪博李秋杰
Owner BC P INC CHINA NAT PETROLEUM CORP