High-efficiency rock-breaking combination tool with punching-and-rotating scraping-and-cutting stepping function

A combined tool and stepped technology, applied in the direction of drill pipe, casing, drill pipe, etc., can solve the problems of slow drilling speed, low drill bit life, incompatibility, etc., and reduce drilling tool vibration and tripping. Time and cost, the effect of speeding up drilling

Inactive Publication Date: 2018-06-19
SOUTHWEST PETROLEUM UNIV
View PDF10 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the shortcomings of the existing single bit rock breaking technology, and innovatively propose a high-efficiency rock breaking combined tool of punching-scraping and stepping action, so as to realize the drillin...

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
  • High-efficiency rock-breaking combination tool with punching-and-rotating scraping-and-cutting stepping function
  • High-efficiency rock-breaking combination tool with punching-and-rotating scraping-and-cutting stepping function
  • High-efficiency rock-breaking combination tool with punching-and-rotating scraping-and-cutting stepping function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The present invention will be further described below in conjunction with accompanying drawing:

[0015] like figure 1 , figure 2 , image 3 , Figure 4 As shown, the present invention is a high-efficiency rock-breaking combined tool of punching-scraping step action, which is composed of a front impact drill bit 3, a short joint 2 and a PDC drill bit 1, and the front impact drill bit 3 and the short joint 2 pass through the pin 12 is connected with the box 11, and the front impact drill 3 provides continuous hydraulic power through the drilling fluid to generate impact load; the pup joint 2 and the PDC bit 1 are connected through the pin 10 and the box 9; the front impact drill 3 is placed on the There are multiple impact teeth 15, multiple water spray holes 13 and chip removal grooves 14; the PDC teeth 5 are distributed diagonally on the PDC bit blades 4; chip removal is designed between every two adjacent PDC blades 4 The groove 7 and the chip removal groove 7 ar...

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 relates to a high-efficiency rock-breaking combination tool with a punching-and-rotating scraping-and-cutting stepping function, and the high-efficiency rock-breaking combination tool iscomposed of a front chopping bit, a nipple, and a PDC drill. The front chopping bit is connected with the nipple, impact teeth are mounted on the chopping bit, and flutes and water spraying nozzles are formed at the outer side of the chopping bit; the upper end of the nipple is connected with the PDC drill through a screw thread; PDC teeth are diagonally distributed on PDC blades; and the flutesare formed between every two adjacent PDC blades, and the water spraying nozzles are arranged on the flutes. The model of the nipple can be replaced, and the length of a stepping structure between thefront chopping bit and the rear PDC drill is adjusted by installing nipples of different series with different lengths. Through a punching-and-rotating scraping-and-cutting stepping structure of thechopping bit and the PDC drill, hierarchical crushing of a rock is realized, and the difficulty of rock breaking is reduced; and the combination of different rock breaking tools can be realized, the vibration during the drilling process is greatly reduced, the adaptability of rock breaking of the drill to deep complicated formation is improved, the rock breaking efficiency is improved, and the service life of the drill is prolonged.

Description

technical field [0001] The invention relates to a high-efficiency rock-breaking combined tool with stepwise action of punching and scraping, which belongs to the field of mechanical drilling devices for oil and gas resource exploitation. Background technique [0002] 1. With the increase of exploration and development of oil and gas resources at home and abroad, the exploitation of oil and gas resources has gradually developed to deep wells, ultra-deep wells and complex and difficult-to-drill formations. The drill bit is a tool that directly acts on the rock in oil and gas drilling. However, the traditional roller cone bit and PDC bit have low rock-breaking efficiency, slow speed and short life during the drilling process, which cannot meet the current drilling process requirements for increasing speed and efficiency. The life of the drill bit and the adaptability of the drill bit to the rock play an important role in improving the drilling speed and reducing the drilling co...

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
IPC IPC(8): E21B10/38E21B10/54E21B10/42E21B10/60E21B17/046
CPCE21B10/38E21B10/42E21B10/54E21B10/602E21B17/046
Inventor 李琴傅文韬黄志强马亚超谢豆晏瑀琪
Owner SOUTHWEST PETROLEUM UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap