Rock debris collecting device for mechanical rock breaking test and drilling evaluation method

Abstract

The invention relates to a rock debris collecting device for a mechanical rock breaking test and a drilling evaluation method. The rock debris collecting device is mainly composed of a rock breaking and debris discharging system, a rock debris collecting system and a data collecting and processing system, and dynamic drilling efficiency evaluation of a drill bit can be achieved in the rock breaking process. The rock breaking and debris discharging system blows up rock debris in a sealing frame through a debris discharging device; and meanwhile, the rock debris collecting system sucks the rock debris into a rock debris collecting box through a dust suction motor. Furthermore, real-time working parameters of the drill bit and the drilling efficiency are combined together through the data collecting and processing system, and the purpose of comprehensive evaluation is achieved. The rock debris collecting device is good in sealing performance, environmental pollution is reduced, meanwhile, the drilling efficiency under different working parameters can be evaluated through the dynamic drilling efficiency evaluation method, and therefore the method is provided for optimizing the drill bit type and optimizing 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 mechanical rock breaking tests. Background technique [0002] With the further development of the national economy, the demand for oil and gas resources continues to increase, and now the medium and shallow oil and gas resources 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 breaking efficiency is one of the important basic theoretical research directions of drilling, and it has been in the stage of exploration and experiment up to now. [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 pollu...

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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