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PDC drilling property determination test device

A technology for testing devices and characteristics, applied in the direction of measuring devices, strength characteristics, mechanical devices, etc.

Inactive Publication Date: 2009-09-23
SHENGLI PETROLEUM ADMINISTRATION BUREAU DRILLING TECH ACAD SINOPEC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In view of the fact that there is no unified method and standard at home and abroad so far, for the actual situation of testing the drilling, wear and impact resistance of PDC, a miniature PDC simulated drill bit is designed to conduct drilling and milling tests on rocks to determine the PDC. Drilling, wear and shock resistance test device

Method used

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  • PDC drilling property determination test device

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Experimental program
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Embodiment Construction

[0007] Refer to attached figure 1 , specific embodiments of the present invention will be described in detail.

[0008] exist figure 1 Among them, the simulated drill string 3, the simulated drill bit 4, the rock sample clamping system 5, the load loading system 6, and the rotating system 7 are installed on the frame 1; the torque sensor and the rotational speed sensor in the rotating system 7 communicate with the data acquisition through the shielded signal line. The displacement sensor in the rock sample clamping system 5 is connected to the data collector 8 through a shielded signal line, and the load sensor in the load loading system 6 is connected to the data collector 8 through a shielded signal line. In addition, the control lines output by the console 9 connected to the computer 10 can respectively control the starting of the motors in the load loading system 6 and the rotating system 7 .

[0009] In the experiment process of the present invention, the front end of t...

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PUM

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Abstract

A PDC drilling property determination test device consists of a rack, a simulation drill string, a simulation drill bit, a water inlet, a rock sample holding system, a load loading system, a rotation system, a data acquisition unit, a computer, a console and other parts. The test device is characterized in that the simulation drill string, the drill bit, the rock sample holding system, the load loading system and the rotation system are arranged on the rack; the rotation system, the rock sample holding system, the load loading system and the like are all connected with the data acquisition unit and the computer through shielding signal wires; the console is connected with the computer, the rotation system, the rock sample holding system, the load loading system and the like through control wires. The test device can use a minitype PDC simulation drill bit for test of drilling and milling in rock and has the advantage of truly reflecting the overall engineering index of characteristic of drilling stratum rock with test-used PDC as cutting teeth under the state of stress and rotation accompanied by irregular vibration and impact.

Description

technical field [0001] The invention relates to a test device for testing the drilling, wear and impact resistance characteristics of the PDC by using a miniature PDC simulated drill bit to test rock drilling and milling under given indoor conditions. Background technique [0002] PDC (Polycrystalline Diamond Composite Chip), as a cutting material artificially synthesized under high temperature and high pressure conditions, has been widely used as the main raw material of cutting teeth in geological survey, In the rock-breaking tool manufacturing industry, such as oil exploration and development, which mainly use scraping and cutting rock-breaking methods. However, there are no truly standardized and unified technical indicators and specifications for the evaluation of PDC drilling characteristics. PDC manufacturers and PDC bit manufacturers at home and abroad only refer to wear ratio, compressive strength, impact strength, and The quality of PDC is evaluated by individual ...

Claims

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Application Information

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IPC IPC(8): G01N19/00G01N3/00G01N3/56
Inventor 王敏生李祖奎赵秀菊燕静王明瑞张建政
Owner SHENGLI PETROLEUM ADMINISTRATION BUREAU DRILLING TECH ACAD SINOPEC
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