FRACTURE NETWORK PROPAGATION AND PRODUCTION DYNAMIC COUPLING METHOD FOR UNCONVENTIONAL OIL AND GAS RESERVOIR HORIZONTAL WELL FRACTURING

WIPO Patent Application WO/2022/218159

A1

The present invention belongs to the technical field of oil and gas reservoir development, and disclosed within are a fracture network propagation and production dynamic coupling method for unconventional oil and gas reservoir horizontal well fracturing. In the present invention, an unconventional oil and gas reservoir fracturing horizontal well complex fracture network model is constructed on the basis of a fracture propagation theory for fracturing; a fracturing horizontal well three-dimensional three-phase seepage mathematical model is constructed via integrating an embedded-type discrete fracture model; a fully implicit-type numerical computation model is constructed utilizing a finite difference method and a three-dimensional orthogonal cube grid, and iterative solving is performed, and thereby a production dynamic feature of an unconventional oil and gas reservoir fracturing horizontal well is predicted. The present invention remedies mutually independent defects of a traditional fracture network propagation model and a production dynamic prediction model, and dynamic integrated simulation and prediction of fracture network propagation and production for unconventional oil and gas reservoir horizontal well fracturing are implemented by means of combining a fracture propagation model and a production dynamic prediction model.

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ZHAO YULONG (CN)
ZHANG LIEHUI (CN)
ZHANG RUIHAN (CN)
ZENG BIN (CN)
TANG HUIYING (CN)
PAN JUN (CN)
HE XIAO (CN)
YANG ZHIDONG (CN)

PCT/CN2022/084277

October 20, 2022

March 31, 2022

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UNIV SOUTHWEST PETROLEUM (CN)

G06F30/23; E21B43/26; G06F30/28; G06Q10/04; G06Q50/02; G06T17/20

CN113076676A	2021-07-06
CN107545113A	2018-01-05
CN110738001A	2020-01-31
US20130124169A1	2013-05-16

BEIJING ZHENGHUA ZHICHENG PATENT AGENCY (CN)

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