A fracturing and sanding design method based on large-scale parallel plate proppant migration and placement model experiment

A proppant and parallel plate technology, which is applied in earthwork drilling, wellbore/well components, measurement, etc., can solve the problems of short hydraulic fracturing proppant migration distance and short effective propped fractures, and achieve the effect of reducing costs

Active Publication Date: 2022-04-01
CHINA UNIV OF PETROLEUM (EAST CHINA)
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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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  • A fracturing and sanding design method based on large-scale parallel plate proppant migration and placement model experiment
  • A fracturing and sanding design method based on large-scale parallel plate proppant migration and placement model experiment
  • A fracturing and sanding design method based on large-scale parallel plate proppant migration and placement model experiment

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Embodiment Construction

[0058] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

[0059] Taking oil well A with branch fractures as an example, to design the fracturing and sanding construction plan of oil well A, a fracturing and sanding design method based on the large-scale parallel plate proppant migration and laying physical model experiment is adopted, as shown in figure 1 As shown, it specifically includes the following steps:

[0060] Step 1: Select proppant particle size, fracturing fluid viscosity, proppant density, fracturing fluid displacement, and sand ratio as construction parameters, and determine the proppant particle size and fracturing fluid used in the early, middle, and late stages of fracturing construction. Value ranges of viscosity, proppant density, displacement, and sand ratio;

[0061] The fracture height H to be filled in oil well A is 10m, the fracture closure pressure is 40M...

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Abstract

The invention discloses a fracturing and sanding design method based on a large-scale parallel plate proppant migration and laying physical model experiment, and specifically relates to the field of oil and gas field development. This method determines the value range of each construction parameter according to the fracturing target, and uses a large-scale parallel plate proppant migration and laying phantom experimental device to conduct a control experiment on each construction parameter to obtain the migration of proppant under different parameters and the final sand embankment. Morphological pictures, and use sand embankment shape evaluation parameters to quantitatively evaluate the final sand embankment shape, optimize construction parameters, measure the horizontal migration velocity and vertical settlement velocity of proppant under different conditions, and calculate the propping height and horizontal propping fracture length, After checking, determine the sanding parameters of each stage of fracturing, and combine the ratio of proppant to fracturing fluid at each stage to determine the final fracturing sanding construction plan. The invention solves the problem of few and incomplete quantitative evaluation parameters of experimental results, greatly improves the effect of fracturing and increasing production, and effectively reduces the cost of fracturing construction.

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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B43/267E21B47/00
CPCE21B43/267E21B47/00
Inventor 吕明锟曲占庆郭天魁刘晓强樊家铖王继伟郝彤杜泽明
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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