China University of Geosciences (beijing)

China University of Petroleum

Willand (beijing) Technology Co., Ltd.

Beijing University of Technology

China University of Mining and Technology (CUMT)

Pan Wang

Chen Chen

Caili Dai

Guang Zhao

Qing You

Zichong Chen

Yifei Liu

Jichao Fang

Zhuo Lv

Yi Wang

Lin Ma

Jing Liu

Min Liu

Yan Zhang

Hui Tian

Suping Peng

Mingwei Gao

Wenfeng Du

Long He

Hongli Suo

Jiaping Tao

Tiantian Wang

Liang Li

Baolei Jiao

Feisheng Feng

Pingjie Fu

Yichen Meng

Mangmang Gao

Yaru Liang

Faxue Peng

Display screen or portion thereof with animated graphical user interface

Display screen or portion thereof with graphical user interface

The flow modifier particle composition contain a viscoelastic base agent, a selective solubilizer, a density modifier, a sweller, and an optional plasticizer, wherein based on the total weight of the flow modifier particle composition, the content of the viscoelastic base agent is 30-90 wt %, the content of the selective solubilizer is 3-30 wt %, the content of the density modifier is 0.1-30 wt %, the content of the sweller is 1-30%, and the content of the plasticizer is 0-10 wt %. The present invention further discloses a flow modifier, which contains the flow modifier particle composition and a carrying fluid that contains water and a surfactant. The present invention further discloses a preparation method of the flow modifier, and a use of the flow modifier and the flow modifier particle composition in exploitation of fracture-cave reservoirs.

Flow modifier particles, flow modifier, and preparation method and use thereof

An oil-soluble coated particle flow modifier, a preparation method thereof, and a use thereof in fractured-vuggy carbonate reservoirs mining. The oil-soluble coated particle flow modifier is of a core-shell structure, which has a core layer of a coated core and a shell layer of a coating agent, wherein the coated core is made of a plugging material, and the coating agent consists of petroleum resin and hollow beads. Based on the total weight of the coated particle flow modifier, the content of the petroleum resin, the hollow beads, the cotton linters, and the coated cores is 10-40 wt %, 9-40 wt %, 1-10 wt %, and 35-80 wt %, respectively. A preparation method of the coated particle flow modifier and a use of the coated particle flow modifier in fractured-vuggy carbonate reservoirs mining to improve oil recovery is also provided.

Oil-soluble coated particle flow modifier for fractured-vuggy carbonate reservoir and preparation method and use thereof

The invention discloses a real-time water-level monitoring system for a dumping site of an open-pit coal mine. The dumping site of the open-pit coal mine comprises an aboveground part and an underground part, where the aboveground part is a stacking site () located above an original ground surface. The real-time water-level monitoring system for a dumping site of an open-pit coal mine comprises a first measuring well () and a second measuring well (), where the first measuring well () is arranged vertically in the center of the stacking site (), and the second measuring well () includes a vertical section (), a horizontal section (), and a free section () connected in sequence; and a first water-impermeable layer (), a second water-impermeable layer (), and a third water-impermeable layer () are provided internally in the stacking site ().

Real-time water-level monitoring system for dumping site of open-pit coal mine, and methods of establishment and use of the same

A method for preparing element diffusion-type composite substrate and it belongs to the field of high-temperature coated superconductor substrate preparation. The rolled composite nickel-tungsten alloy substrate is heated and thermally insulated, meanwhile, both ends of the rolled substrate are applied with a low voltage and high current density pulse current. High-performance nickel-tungsten alloy composite substrate is obtained with the method in the present invention and the sandwich-like composite substrate has low ferromagnetism and high strength due to higher solute diffusion from inner layer to outer layer, yet which does not affect the formation of sharp cubic texture on the surface of the composite substrate. On the one hand, the adoption of electric pulse technology accelerates the interdiffusion effect of inter-layer elements, on the other hand, it promotes the recrystallization nucleation and reduces the recrystallization annealing temperature of the composite substrate, thus energy saving effect is achieved and the negative effects of annealing thermal erosion grooves among crystal boundary to subsequent coating are effectively reduced. Alloy composite substrate prepared in this invention has the characteristics of high cubic texture content, low magnetism, high strength, and can be applied to large-scale industrial production.

Method for preparing element diffusion-type composite substrate

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Beijing, China

Pan Wang