Results 41 to 50 of about 10,285 (169)

An evaluation method of volume fracturing effects for vertical wells in low permeability reservoirs

Petroleum Exploration and Development, 2020
To evaluate the fracturing effect and dynamic change process after volume fracturing with vertical wells in low permeability oil reservoirs, an oil-water two-phase flow model and a well model are built.
Anshun ZHANG, Zhengming YANG, Xiaoshan LI, Debin XIA, Yapu ZHANG, Yutian LUO, Ying HE, Ting CHEN, Xinli ZHAO   +8 more
doaj   +1 more source

Research on the Volumetric Efficiency of a Novel Stacked Roller 2D Piston Pump

Machines, 2021
In order to improve the volumetric efficiency of the axial piston pump, this paper proposes a novel stacked roller 2D piston pump. It utilizes the alternate communication between the distribution cylinder and the oil intake and discharge ports of the ...
Chenchen Zhang, Jian Ruan, Tong Xing, Sheng Li, Bin Meng, Chuan Ding   +5 more
doaj   +1 more source

Cholesterol Promotes Lung Adenocarcinoma Brain Metastasis by Stabilizing EGFR Protein to Drive EMT, Metabolic Reprogramming, and Premetastatic Niche Formation

Advanced Science, EarlyView.
Cholesterol is revealed as a multitasking fuel for lung adenocarcinoma brain metastasis: it locks EGFR at the membrane to sustain AKT/NF‐κB–driven glycolysis and EMT, loosens the blood–brain barrier by promoting Claudin‐5 loss, and rewires microglia through IL‐4R lipid‐raft–JAK1/STAT6 signaling.
Ying Chen, Xiaoteng Cui, Xinyi Shi, Xu Yang, Yujing Cao, Haolin LI, Qi Zhan, Qixue Wang, Ang Li, Qihong Cheng, Yunfei Wang, Junhu Zhou, MingJie Wang, Chunsheng Kang, Xiaomin Liu   +14 more
wiley   +1 more source

Fabrication of a Composite Groove Array Surface with Gradient Wettability Which Delivers Enhanced Lubrication Performance

Lubricants
A novel composite groove array surface was fabricated using femtosecond laser ablation technology to enhance self-replenishment capability. Initially, the driving efficiency of droplets on the composite groove array surface was tested using a high-speed ...
Tianrui Zhang, Chenglong Liu, Xinming Li, Feng Guo, Kongmin Zhu   +4 more
doaj   +1 more source

Methane Pyrolysis Performance in Catalytic Molten Media for Hydrogen Production From the Perspective of Bubble Column Reactor Design and Configuration

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT In the hydrogen production routes from natural gas (methane), methane pyrolysis offers a cleaner option than the established steam methane reforming by producing CO2‐free hydrogen. However, in fixed bed reactors over solid catalysts, this technology experiences rapid catalyst deactivation due to carbon (coke) deposition encapsulating its ...
Muhammad Irfan Fakarudin, Luqmanulhakim Baharudin, Matthew J. Watson, Wan Nor Roslam Wan Isahak   +3 more
wiley   +1 more source

Reuse treatment technology of fracturing backflow fluid and its application in Wuqi Oilfield

Gongye shui chuli
The fracturing backflow fluid in Wuqi(WQ) Oilfield has problems such as large quantity, high viscosity, and difficult treatment, and the environmental situation is extremely severe.
CHEN Gang, WANG Weilong, YANG Shuisheng, LI Chen, ZHU Jinyan, SHEN Taizhi, HONG Xi   +6 more
doaj   +1 more source

Dynamic Adaptive Display System for Electrowetting Displays Based on Alternating Current and Direct Current

Micromachines, 2022
As a representative of the new reflective display technology, electrowetting display (EWD) technology can be used as a video playback display device due to its fast response characteristics.
Shixiao Li, Yijian Xu, Zhiyu Zhan, Pengyuan Du, Linwei Liu, Zikai Li, Huawei Wang, Pengfei Bai   +7 more
doaj   +1 more source

Sharp Phase Change in Shape Memory Alloy Thermal Actuators for Subsea Flow Control [PDF]

, 2012
Gas-lifted oil wells are susceptible to failure through malfunction of gas lift valves (GLV). One failure mode occurs when the GLV check valve fails and product passes into the well annulus, potentially reaching the wellhead. This is a growing concern as
Freeman, Bryan, Gilbertson, Eric W., Hover, Franz S.   +2 more
core   +1 more source

Multiple injection techniques to stimulate complex fracture networks in coal reservoirs: A case study on gas disaster reduction of subsurface coal mine in southwest China

Deep Underground Science and Engineering, EarlyView.
An experimental device for physical simulation of hydraulic fracturing, comprising: a load‐bearing mechanism with multiple interconnected plates that collectively form an sample chamber; a load‐generating mechanisms, with multiple load‐generating mechanisms arranged within the experimental chamber.
Delei Shang, Farui Shi, Jun Lu, Minghui Li, Cunbao Li, Heping Xie   +5 more
wiley   +1 more source

Bioinspired Janus Evaporator for Efficient Desalination of Saline‐Alkali and Seawater Through Photothermal‐Capillary Effects

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This work combines textile technology to ingeniously integrate a hydrophobic PP/MXene photothermal sheath with a hydrophilic cotton core into functionalized yarns, successfully developing a Janus core‐sheath evaporator (PM‐CSY‐F). The evaporator demonstrates outstanding evaporation rates and efficient desalination efficiency when applied to treating ...
Qi Zhang, Pengfei Zhang, Shan Song, Chengyu Fu, Limeng Yang, Cuihong Sheng   +5 more
wiley   +1 more source