the China Research and Pilot Test on Key Technology of Efficient Production of Changqing Tight Oil(Grant No.2021DJ2202).
Class III tight oil reservoirs have low porosity and permeability,which are often responsible for low production rates and limited recovery.Extensive repeated fracturing is a well-known technique to fix some of these ...
During the life of a well,treatments are carried out to boost productivity by stimulating initially unproduced zones.These treatments include hydraulic fracturing,matrix acidization,and acid fracturing,among others.Hy...
Supported by National Natural Science Foundation Joint Fund Project(U21B2071);National Natural Science Foundation of China(52174033);National Natural Science Youth Foundation of China(52304041).
Based on the elastic theory of porous media,embedded discrete fracture model and finite volume method,and considering the micro-seepage mechanism of shale gas,a fully coupled seepage-geomechanical model suitable for f...
supported by Beijing Natural Science Foundation(Grant No.3222030);CNPC Innovation Found(Grant No.2021DQ02-0201);the National Natural Science Foundation of China(Grant Nos.51936001 and 52174045);the Award Cultivation Foundation from Beijing Institute of Petrochemical Technology(Project No.BIPTACF-002)
Refracturing treatment is often performed on Russian carbonate reservoirs because of the quick production decline of reservoirs.The traditional refracturing model assumes that a refracture initiates in the normal dire...
funded by the National Natural Science Foundation of China(41772286,42077247);the Fundamental Research Funds for the Central Universities;Open Research Fund of State Key Laboratory of Geomechanics and Geotechnical Engineering,Institute of Rock and Soil Mechanics,Chinese Academy of Sciences(Z020009)。
Refracturing is an importa nt technique to tap the potential of reservoirs and boost production in depleted oil and gas fields.However,fracture propagation during refracturing,including both conventional refracturing ...
An artificial-intelligence based decision-making protocol is developed for tight gas sands to identify re-fracturing wells and used in case studies. The methodology is based on fuzzy logic to deal with imprecision and...
Projects(51204054,51504203)supported by the National Natural Science Foundation of China;Project(2016ZX05023-001)supported by the National Science and Technology Major Project of China
The selection of refracturing candidate is one of the most important jobs faced by oilfield engineers. However, due to the complicated multi-parameter relationships and their comprehensive influence, the selection of ...
Supported by the National Natural Science Foundation of China(51525404,51504203);China National Science and Technology Major Project(2016ZX05002002)
Tight oil reservoirs in Songliao Basin were taken as subjects and a novel idealized refracturing well concept was proposed by considering the special parameters of volume fracturing horizontal wells, the refracturing ...
supported by National Natural Science Foundation of China(No.51674279);China Postdoctoral Science Foundation(No.2016M602227);a grant from National Science and Technology Major Project(No.2017ZX05049-006)
The paper presents a novel hydraulic fracturing model for the characterization and simulation of the complex fracture network in shale gas reservoirs. We go beyond the existing method that uses planar or orthogonal co...