A cuttings collection device and drilling evaluation method for mechanical rock breaking test

Abstract

The invention relates to a cuttings collection device and a drilling evaluation method for a mechanical rock-breaking test. The cuttings collection device is mainly composed of a rock-breaking and cuttings removal system, a cuttings collection system, and a data acquisition and processing system. Realize the dynamic drilling efficiency evaluation of the drill bit. Wherein, the rock breaking and chip removal system blows up the cuttings in the sealing frame 1 through the chip removal device; meanwhile, the cuttings collection system uses a vacuum motor to suck the cuttings into the cuttings collection box. Further, through the data acquisition and processing system, the real-time working parameters of the drill bit and the drilling efficiency are combined to achieve the purpose of comprehensive evaluation. The invention has good sealing performance, reduces environmental pollution, and can evaluate the drilling efficiency under different working parameters through the dynamic drilling efficiency evaluation method, thereby providing a method for optimizing the type of the drill bit and optimizing the drilling parameters.

Description

technical field [0001] The invention relates to the field of oil and gas exploration and drilling test devices, in particular to a cuttings collection device and a drilling evaluation method for a mechanical rock breaking test. Background technique [0002] With the further development of the national economy, the demand for oil and gas resources continues to increase, and now the oil and gas resources in the middle and shallow layers have been fully developed, so the exploration of deep oil and gas resources has become an inevitable trend. In different rock formations, the study of rock crushing efficiency is one of the important basic theoretical research directions of the drilling profession, and it has been in the stage of exploration and testing so far. [0003] At present, the domestic drill test equipment has poor environmental protection capabilities. During the rock crushing process, the flying cuttings cannot be collected and sampled correctly, resulting in serious...

AI Technical Summary

Problems solved by technology

[0003] At present, the environmental protection ability of domestic drill bit test equipment is poor. During the rock crushing process, the flying cuttings were not collected and sampled correctly, which caused the cuttings to seriously pollute the test environment and affect the health of operators. At the same time, the domestic drill bit test equipment The function is not perfect, the working parameters of the drill bit and the drilling efficiency are not organically combined, it is difficult to objectively evaluate the drilling efficiency of the drill bit, especially the dynamic evaluation method is still rare, the establishment of a complete dynamic evaluation system can evaluate different rock samples in real time The crushing efficiency provides a method for optimizing the drill bit and optimizing the drilling parameters

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