China University of Petroleum – TechConnect Briefs

Microscopic pore structures and controlling factors of the Micro- and Nano- Scale tight sandstone reservoirs in the Western Sichuan Depression, China

Wang Q., Chen D., Zhang B., Li L., China University of Petroleum, CN

Western Sichuan Depression (WSD) has a natural gas resource of about 31646.98×108 m3 and 251 commercial gas wells among which the largest single well productivity can be as high as 151×104 m3/d (Well X851), indicating [...]

A novel nano-sized polymer microsphere as a potential shale stabilizer in water-based drilling fluids

Xu J., Qiu Z., Chen G., Zhong H., Zhao X., China University of Petroleum, CN

Borehole instability caused by pore pressure transmission and shale hydration gives rise to a number of problems, which has been a challenge during oil and gas drilling process for many years [1]. Recent years, the [...]

Development and Testing of Thermosensitive Poly(NIPAm-AA)/Nano-SiO2 Composite Blocking Agent for Shale Gas Drilling Operations

Wang W., Qiu Z., Chen G., Zhong H., Huang W., Cao J., China University of Petroleum, CN

Nanotechnology has already contributed significantly to technological advances in energy industry and has the potential to revolutionize the drilling industry. Traditional blocking agents are difficult to form effective mud cake to prevent liquid penetration due [...]