Coring drilling tool based on hydraulic clamping coring

A core drilling tool and core technology, which is applied in the direction of extracting undisturbed core devices, earthwork drilling, engine sealing, etc., can solve the problems of low construction efficiency, affecting the stability of the hole wall, and high labor intensity.

Active Publication Date: 2016-08-31
CCCC FHDI ENG
View PDF15 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the single-tube pumpless drilling tool can increase the core recovery rate in extremely broken and weak formations, the construction effici

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
  • Coring drilling tool based on hydraulic clamping coring
  • Coring drilling tool based on hydraulic clamping coring
  • Coring drilling tool based on hydraulic clamping coring

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0049] In this embodiment, the core drilling tool based on hydraulic core grabbing, such as figure 1 Shown, including force transfer mechanism I, diversion limit mechanism II, pressure storage mechanism III, lift injection pressure mechanism IV, hydraulic clamping mechanism V, side jet bit transfer mechanism VI, outer tube assembly and seal system.

[0050] Such as figure 2 As shown, the force transfer mechanism I includes the drill pipe adapter 1, the power shaft 2, the transfer adapter 3, the double limit nut 4, the conversion adapter 5, the force transmission ring 6, the sliding sleeve seat 7, the sliding sleeve 8, and the upper and lower thrusts Bearing 9, sealing nut 10 and spindle adapter 11; the upper end of the power shaft 2 is threaded with the drill pipe adapter 1, and the lower end is threaded with the conversion adapter 5. A through hole is provided in the axial direction, and the shaft body is set with internal splines at the end of the transfer adapter 3. For match...

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 a coring drilling tool based on hydraulic clamping coring. The coring drilling tool comprises a force transferring power distribution mechanism, a guide limiting mechanism, a pressure storage mechanism, a lifting pressure injection mechanism, a hydraulic core clamping mechanism, a side spraying drill bit power distribution mechanism, an outer tube assembly and a sealing system, wherein the guide limiting mechanism is butted with the force transferring power distribution mechanism; the pressure storage mechanism is butted with the guide limiting mechanism; the lifting pressure injection mechanism is butted with the pressure storage mechanism; the hydraulic core clamping mechanism is butted with the lifting pressure injection mechanism; the side spraying drill bit power distribution mechanism is butted with the hydraulic core clamping mechanism; the hydraulic core clamping mechanism comprises a bottom bearing platform, a hydraulic membrane, a core inner tube, a clamp spring seat and a clamp spring. The coring drilling tool can reach 100 percent coring rate in soft, loose and broken complex stratums where coring is difficult, provides fully automatic three-dimensional stress to clamp, bind and control cores based on hydraulic pressure, meanwhile is matched with a conventional core clamping and cutting device, and has the characteristics of high reliability, high coring efficiency, high coring quality, high core recovery percentage, wide applicable stratum range and good automation property.

Description

technical field [0001] The invention relates to a core drilling tool for drilling, in particular to a core drilling tool suitable for drilling and coring in complex and difficult coring formations such as weak, loose and extremely broken. Background technique [0002] Drilling technology is currently the only exploration technology method that can take out solid rock and mineral samples from the ground. , environmental scientific drilling, etc., showing the irreplaceable important role of drilling technology. However, the current drilling environment has moved from the shallow surface that is easy to excavate to the deep, and the situation will be that resources are difficult to find, difficult to excavate, higher altitudes, and land shifting to lakes and oceans, which poses higher requirements for drilling efficiency and quality. requirements. The acquisition of true and reliable geological data relies on the ability of drilling technology to cope with different environme...

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): E21B25/00F16J15/18
CPCE21B25/00F16J15/181
Inventor 郝志斌
Owner CCCC FHDI ENG
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