Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Rotary jet flow PDC drill bit

A drill bit and jet technology, applied in drill bits, drill pipes, drill pipes, etc., can solve the problems of secondary wear and reduced work efficiency, and achieve the effects of increasing the ROP, prolonging the service life, and reducing the possibility of

Inactive Publication Date: 2016-09-07
YICHANG SHENDA PETROMACHINE +1
View PDF12 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art, and propose a rotary jet PDC drill bit to overcome the technical problems that the existing PDC drill bit will reduce its working efficiency and secondary wear under the action of cuttings

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
  • Rotary jet flow PDC drill bit
  • Rotary jet flow PDC drill bit
  • Rotary jet flow PDC drill bit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The technical solutions in the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0025] Such as Figure 1-2 As shown, a rotary jet PDC drill bit of the present invention includes a drill body 1, a blade 2, a PDC cutting tooth 3, a nozzle, a runner, a chip flute 6 and a reverse nozzle joint 7, and the blade 2 is arranged on the drill body 1 In the crown, the PDC cutters 3 are arranged on the blade 2. The flow channel 5 runs through the drill body 1 and the reverse nozzle joint 7. The drill body 1 drives the blade 2 to rotate, and the PDC cutters 3 cut the rock formation. The high-pressure jet of the channel washes away the residual cuttings, and finally completes the entire drilling operation.

[0026] The structure and principle of the present invention will be described in detail below.

[0027] Such as Figure 1-4 As shown, the present invention provides a rotary jet PDC bit (PDC is Polycrystalline Di...

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 drill bits for drilling in the fields of oil-natural gas, mine engineering, building foundation engineering construction, geology and hydrology, in particular to a rotary jet flow PDC drill bit which comprises a drill bit body, knife wings and PDC cutting teeth. The knife wings are positioned at the crown of the drill bit body, the PDC cutting teeth are positioned on the knife wings, a cavity with the lower end open is arranged in the drill bit body, a diversion plate, a compression cavity and a storage cavity are sequentially arranged in the cavity from top to bottom, the compression cavity is communicated with a dendritic runner penetrating the diversion plate, a main body of the dendritic runner is of a hourglass-shaped structure with two ends wide and middle narrow, and a rotating element is arranged in the storage cavity and composed of a rotating element body and rotating blades spirally arranged on the periphery of the rotating element body. The rotary jet flow PDC drill bit is simple in structure and high in impact capability and mechanical drilling speed, secondary abrasion of the drill bit caused by rock debris is avoided, and service life is prolonged; a reverse nozzle joint structure is adopted, so that energy consumption of well drilling is lowered.

Description

technical field [0001] The invention relates to a drill bit for drilling used in the fields of petroleum and natural gas, mining engineering, building foundation engineering construction, geology, hydrology and the like, in particular to a rotary jet PDC drill bit. Background technique [0002] During the working process of the PDC bit, the flushing, cooling and lubrication of the drilling fluid to the surface of the bit body is a very important condition to ensure the normal operation of the bit. For the PDC bit, the hydraulic structure, especially the design of the center nozzle and the crown flow channel is particularly important. Compared with the roller cone bit, the PDC bit has the characteristics of high ROP, long working life, and more footage. Therefore, it is widely used in oil and gas, mining engineering, building foundation engineering construction, geology, hydrology and other fields. [0003] The main function of the hydraulic structure of the PDC bit is to ef...

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): E21B10/60E21B10/46E21B17/04
CPCE21B10/602E21B10/46E21B17/04
Inventor 张翼付正兵刘文彬傅红兵饶豪杜杨
Owner YICHANG SHENDA PETROMACHINE
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com