Cnpc USA Corporation

China National Petroleum Corporation

Beijing Huamei Inc.

Southwest Petroleum University

Congbin Yin

Jiangshui Huang

Lijun Lin

Stephanie Yu

Litao Bai

Wei Gong

Fuchen Craig Liu

Chi Chen

Jianchun Guo

Cong Lu

Meiping Li

Ye Zhong

Yunchuan Zheng

Yong Ren

Kun Wang

Xianjun He

Zhihong Zhao

Fuchen Liu

Li Ma

Yang Luo

Junfeng Li

Mingzhong Chen

Bin Qian

Chuhao Huang

Fenglan Huang

Yongjun Xiao

A hydraulic fracture fluid is provided. The fluid can include a liquid solvent, one or more surfactants, a proppant-forming compound, and one or more curing agents. The liquid reacts to form proppant in-situ under downhole conditions.

Method of hydraulic fracturing utilizing a hydraulic fracturing fluid with a single phase liquid proppant

A method for characterizing complexity of rock fracture based on fractal dimension and a device thereof are provided. The method includes steps of: collecting rock fracture samples of a rock, and collecting basic parameters of the rock; determining a fractal dimension of a rock fracture morphology of the rock; calculating the fractal dimension of the rock; calculating a complexity coefficient Fc of rock fracture of the rock; and characterizing a complexity of rock fracture of the rock based on the complexity coefficient Fc of rock fracture of the rock. In the present invention, combined with the fractal geometry theory, fracture complexity coefficient of shale rocks is redefined and calculated to accurately characterize rock fracture morphology, so that characteristics of rock fracture morphology is correctly understood and affecting factors of fracture morphology is analyzed.

Method for characterizing complexity of rock fracture based on fractal dimension and device thereof

The disclosed hydraulic fracturing fluid can include a liquid solvent, one or more surfactants, a proppant-forming compound, and one or more curing agents. When injected into a wellbore, the hydraulic fracturing fluid reacts to form proppant pillars in-situ under downhole conditions. The proppant pillars are capable of maintaining conductive fractures.

A method for acquiring an opening timing of natural fracture under an in-slit temporary plugging condition and a device thereof are provided. The method includes steps of: acquiring physical parameters of stratum according to site geological data, and measuring a slit length L of a hydraulic fracture; dividing the hydraulic fracture into N unit bodies of equal length and numbering them sequentially; and dividing a total calculation time t into meter fractions of time with equal interval; calculating a width of each unit body in the hydraulic fracture at the initial time; calculating a fluid pressure in the hydraulic fracture at the k-th fraction of time; calculating a closed pressure at an entrance of the natural fracture on an upper side and a lower side of the hydraulic fracture at the k-th fraction of time; and determining whether the natural fracture is opened by a determining criteria based on the above calculation results.

Method for acquiring opening timing of natural fracture under in-slit temporary plugging condition

Compositions of hydraulic fracturing fluid and method thereof

Growing community of inventors

Chengdu, China

Congbin Yin