Chengdu University of Technology

Livzon Pharmaceutical Group Inc.

Jingen Deng

Haiyan Zhu

Jin Zhu

Xuemei Hou

Xuanhe Tang

Qin Yang

Yongle Chen

Qiwei Wang

Qiuya Huang

The present invention discloses an optimization design method for volumetric fracturing construction parameters of an infilled well of an unconventional oil and gas reservoir. The method comprises the following steps: S1, establishing a three-dimensional geological model with physical and geomechanical parameters; S2, establishing a natural fracture network model through integration of rock core-logging-seismic data; S3, generating old well hydraulic fracturing complex fractures based on the natural crack model; S4. establishing a three-dimensional shale gas reservoir seepage model; S5, establishing a three-dimensional geomechanical model; S6, analyzing and calculating a dynamic geostress field; S7, establishing a numerical model for horizontal fracturing complex fractures in the infilled well based on the calculation results of old well complex fractures and dynamic geostress; and S8, performing optimization design on volumetric fracturing construction parameters of the infilled well. The method of the present invention has the following beneficial effects: the effects of long-term exploitation of shale reservoirs in which natural fractures are developed on volumetric fracturing of the infilled well can be reflected accurately, the fracturing construction parameters are subjected to optimization design, the fracturing effect is improved effectively, and the single-well capacity is increased.

Optimization design method for volumetric fracturing construction parameters of infilled well of unconventional oil and gas reservoir

Disclosed are an optically pure compound having formula I, its pharmaceutically acceptable salt and its pharmaceutically acceptable solvate, and a use thereof in manufacturing medicaments and pharmaceutical compositions. A process for preparing the compound defined therein is also provided. 

Substituted sulfoxide compounds, methods for preparing the same and use thereof

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Chengdu, China

Jingen Deng