Test hardware system for full-scale bit test

Abstract

The invention discloses a test hardware system for a full-scale bit test, which is mainly composed of a pressure sensor, a displacement sensor, a torque sensor, a bit rotation speed sensor, and three tooth wheel rotation speed sensors which are all independently connected with amplifiers. All the amplifiers are connected with the same data acquisition card. The data acquisition card is connected with a computer. According to the test hardware system for the full-scale bit test disclosed by the invention, the control and test of the whole full-scale bit test process can be finished in a manner that the computer is operated by a person; the traditional way of finishing the test and data acquisition by manual operation of test control table buttons and the computer is displaced; the test operation process is simplified; and the automation degree of the test process is increased.

Description

technical field [0001] The invention relates to a testing hardware system for a full drill bit test. Background technique [0002] The oil drill bit is the main tool to break the formation rock, and it is an important means to increase the mechanical penetration rate and reduce the drilling cost in oil drilling engineering. The development and research of high-performance drill bit products are all based on theoretical and experimental research. The drill bit test is mainly to carry out the full drill bit breaking rock test in different formations and the drill bit ring gear compound motion rock breaking test. The full drill bit test is mainly to test the drill bit in a certain The ROP and broken bottom of different rocks are broken under the drilling parameters. The drill bit ring gear compound motion rock breaking test simulates the movement of the drill bit teeth and the rock breaking condition. The test system collects the drill bit and ring gear speed and bit displaceme...

AI Technical Summary

Problems solved by technology

[0011] With the increase of oil drilling depth and the complexity of formation rocks, the research work of developing high-performance drill bits according to the characteristics of different formation rocks is more urgent. The current control and test system of drill bit tests can no longer meet the needs of research and development of drill bits at this stage.

[0012] At present, the control and test system of the existing drill bit test can no longer meet the needs of drill bit research and new product development, and the main problems are as follows:

[0013] (1) The test control and test process are cumbersome, and the control of the entire rock-breaking test process is realized by manually operating the console, and the degree of automation is low;

[0014] (2) The two existing test systems both use two 8-channel (total 16-channel) data acquisition cards, which have large limitations in expansion functions and are far from meeting the design and test requirements of new drill bits;

[0015] (3) Due to the interference of environmental noise such as hydraulic system and motor, the signal collected by the dynamic strain gauge is affected to a certain extent, and the test data contains a lot of noise;

[0016] (4) The hardware equipment required by the existing two test control and test systems includes operation consoles, dynamic strain gauges, speed measuring instruments, data acquisition boxes and acquisition cards, which are expensive and the hardware cost is too high

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