Test method for simulating working mechanism of drilling rig for gas drilling

Abstract

The invention relates to a test method for simulating a working mechanism of a drilling rig for gas drilling, and the method is used in the field of petroleum and gas drilling. The method comprises an erosion abrasion test method for the drilling rig for gas drilling, a force-bearing test method for the drilling rig for gas drilling and a fatigue fracture test method for the drilling rig for gas drilling, wherein the erosion abrasion test method for the drilling rig for gas drilling comprises the following steps: 1) before testing, fixing a testing derrick on a cement foundation and weighting out the weight of the drilling rig on a test section before testing; 2) starting different combinations of fans and then adjusting and controlling the air pressure and air quantity required by the test; 3) stopping blowing after testing for a period of time and recording the delta 2 at the moment; and 4) taking out the drilling rig on the test section and then weighting the drilling rig, thereby acquiring the abrasion loss of the drilling rig on the test section within unit time. The invention provides a convenient test method for researching the related problems of the working mechanism of the drilling rig for gas drilling in the gas drilling process, such as erosion abrasion, force-bearing and fatigue fracture failure of the drilling rig for gas drilling, and the like.

Description

technical field [0001] The invention relates to a test method for simulating the working mechanism of a gas drilling tool used in oil and gas drilling, and belongs to the technical field of oil and gas drilling technology. Background technique [0002] At present, due to its own advantages, gas drilling can effectively increase the mechanical penetration rate, effectively protect oil and gas layers, facilitate well deviation control, and overcome lost circulation, etc., and has very obvious economic and social benefits. Therefore, gas drilling technology is increasingly becoming one of the most effective technologies for oil and gas exploration and development in my country. However, the failure frequency of drilling tools in gas drilling is much higher than that in drilling fluid drilling, and the frequent occurrence of drilling tool failure accidents seriously restricts the large-scale application of gas drilling technology. At present, the theoretical analysis and experi...

AI Technical Summary

Problems solved by technology

However, the failure frequency of drilling tools in gas drilling is much higher than that in drilling fluid drilling, and the frequent occurrence of drilling tool failure accidents seriously restricts the large-scale application of gas drilling technology

At present, the theoretical analysis and experimental research on the failure of gas drilling tools have achieved preliminary results. The known test methods for gas drilling tools can only simulate the erosion and wear of cuttings on drilling tools during gas drilling, or can only simply simulate gas Drilling tools are subjected to a single force, but it is impossible to simultaneously simulate the force conditions of drilling tools erosion wear and lateral, longitudinal and torsional vibration in the gas drilling process, and it is also impossible to test the fatigue life of drilling tools

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