Fracturing sand adding design method based on large parallel plate proppant migration laying object model experiment

Abstract

The invention discloses a fracturing sand adding design method based on a large parallel plate proppant migration laying object model experiment, and particularly relates to the field of oil and gas field development. The method comprises the steps that the value range of each construction parameter is determined according to a fracturing target, a large parallel plate proppant migration laying object model experiment device is used for conducting a contrast experiment on each construction parameter, the migration condition of a proppant under different parameters and a final sand dike form picture are obtained, sand dike form evaluation parameters are used for conducting quantitative evaluation on the final sand dike form, the construction parameters are optimized, the horizontal migration speed and the vertical sedimentation speed of the proppant are measured under different conditions, the supporting height and the horizontal supporting crack length are calculated, sand adding parameters of all stages of fracturing are determined after checking, and the final fracturing sand adding construction scheme is determined by combining the proportion of the proppant and fracturing fluidin all the stages. According to the fracturing sand adding design method based on the large parallel plate proppant migration laying object model experiment, the problem that the quantitative evaluation parameters of an experiment result are few and incomplete is solved, the fracturing yield increasing effect is greatly improved, and the fracturing construction cost is effectively reduced.

Description

technical field [0001] The invention relates to the field of oil and gas field development, in particular to a fracturing and sanding design method based on a large-scale parallel plate proppant migration and laying physical model experiment. Background technique [0002] At present, the recoverable reserves of conventional oil and gas resources in my country are decreasing year by year. In order to meet the increasing demand for oil and gas, it is necessary to ensure the stable production of conventional oil and gas and the efficient exploitation of unconventional oil and gas. Hydraulic fracturing is an important reservoir stimulation method for stable production of conventional oil reservoirs, shale oil and gas, tight oil and gas, and coalbed methane. Through hydraulic fracturing, fractures or fracture networks for support are formed in the reservoir to increase the oil drainage area. Connect natural fractures to increase production of oil and gas wells. During the hydrau...

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Problems solved by technology

[0005] The present invention aims to solve the current problems of short hydraulic fracturing proppant migration distance in fractures, short effective proppant fractures, and difficulty in directly guiding on-site construction parameter optimization in parallel plate proppant migration and laying experiments. Fracturing and sanding design method for slab proppant migration and laying physical model experiment

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