Comprehensive experimental facility for breaking rocks with steel particle jet impact

Abstract

The invention belongs to the field of oil drilling, and in particular relates to a comprehensive experimental facility for breaking rocks with steel particle jet impact. The comprehensive experimental facility comprises a water storage tank, a high-pressure pump, a high-pressure pipeline, a pressure gauge, high-pressure sphere tanks, an auger conveying device, a high-pressure valve, a test stand, a high-pressure experimental wellbore, rocks, a mortar pump, an injection type funnel, a hydraulic power unit, a hydraulic pipeline, a mass flow meter and a high-pressure diverting valve etc., wherein the auger conveying device can control the particle concentration of high-pressure water flow, the mass flow meter can be used for measuring and judging whether injection of steel particles is completed or not, the confining pressure of steel particle jet rock breaking can be regulated by a pressure regulating nozzle, and the two high-pressure sphere tanks work alternatively so that steel particles can be injected uninterruptedly into the high-pressure pipeline. The particles are delivered along with liquid, and the system drive is achieved by a hydraulic motor. The comprehensive experimental facility can be used for carrying out experimental analysis of the effect law of various parameters such as hydraulic power, lithological characters and jet on rock breaking efficiency, which provides theoretical guidance and equipment support for popularization and application of the technology of particle impact drilling.

Description

technical field [0001] The invention relates to a comprehensive experimental device for rock-breaking by steel particle jet impact, which belongs to the field of petroleum drilling. Background technique [0002] As the demand for oil resources continues to increase, the existing shallow oil resources that are easy to exploit continue to be exhausted, and the exploration and development of oil resources is gradually shifting to deep wells, hard formations and complex formations. During the drilling process of this type of formation, there are problems such as serious drill bit wear, frequent tripping times, severe drilling tool wear, and well deviation, which seriously affect the drilling speed of this type of formation and increase the cost of oil and gas resource exploitation. Particle impact drilling technology adds a certain proportion of steel particles to the drilling fluid. The steel particles are carried by the drilling fluid, mixed evenly with the drilling fluid and ...

AI Technical Summary

Problems solved by technology

During the drilling process of this type of formation, there are problems such as severe drill bit wear, frequent tripping times, severe drilling tool wear, and well deviation, which seriously affect the drilling speed of this type of formation and increase the cost of oil and gas resource exploitation.

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