Southwest Petroleum University

Chengdu Leps Technology Co., Ltd

Hangyu Zhou

Jianchun Guo

Bin Liu

Tao N Zhang

Shan Ren

Tao Zhang

Shaobin Zhang

Yuxuan Liu

Su Diao

Qingsong Guo

Qianli Lu

Mingyong Zeng

Jiapeng Zhang

Yang Lu

Hengbo Zuo

Yongxin Zhu

Kun Sun

Hongmei Wang

A suspended sand dragging fiber and a preparation method thereof, the method including: dispersing nanoparticles into a first solvent, adding a coating agent and a flexibilizer to the first solvent, and stirring and aging to obtain a surface treatment agent; adding a surfactant to a second solvent, adding alkyl polyether siloxane to the second solvent after the surfactant is dissolved in the second solvent, and stirring to obtain a finishing agent; transferring the surface treatment agent to a sizing trough of a sizing machine, sizing polyester fibers using the sizing machine, and drying and curing to obtain surface-modified fibers, and diluting the finishing agent to obtain a finishing agent solution, and treating the surface-modified fibers with the finishing agent solution to obtain the suspended sand dragging fiber.

Suspended sand dragging fibers and preparation methods thereof

The present invention discloses a numerical simulation method for proppant transport considering wall-retardation effect, comprising the followings: establish a physical model of laboratory experiment on proppant transport with a large flat-panel device; establish a drag coefficient model considering wall-retardation effect according to the numerical simulation experiment; establish a computational geometric model; set boundary conditions and physical parameters of the geometric model according to the two-fluid simulation method for solid proppant quasi-fluidization; verify the grid independence of the computational geometric model to obtain the transport characteristics and placement pattern of the proppant in fractures. The present invention employs a numerical simulation method to study the migration and distribution patterns of proppant under the retardation effect of narrow walls during the hydraulic fracturing. The method is reliable in principle and can accurately predict proppant transport in subsurface hydraulic fractures with consideration of the wall-retardation effect on proppant transport.

Numerical simulation method for proppant transport considering wall-retardation effect

Growing community of inventors

Chengdu, China

Hangyu Zhou