China University of Petroleum

Linghui Xi

Zhaomin Li

Chao Zhang

Yong Wang

Songyan Li

Shouya Wu

Mingxuan Wu

Guangzhong Lv

Xingchang Xue

Meijia Wang

Zhaohui Shang

Haifeng He

Provided is a carbon dioxide fluidity control device comprising, a sample preparation tank, a high-pressure stirring unit, a reciprocating plunger pump and a booster pump, wherein the stirring unit comprises one or more high-pressure stirring tanks, each provided with an atomizing spray probe and a piston, wherein a discharge port of the sample preparation tank is connected to the atomizing spray probe via a plunger pump, which is connected to the piston to push the piston to reciprocate; the booster pump is connected to the high-pressure stirring tanks to provide supercritical carbon dioxide to the high-pressure stirring tank; and a discharge port of the high-pressure stirring tanks is connected to an oilfield well group. Provided is a carbon dioxide fluidity control method using the device, comprising mixing surfactants and nanoparticles with heated carbon dioxide, and injecting a microemulsion of supercritical carbon dioxide and nano-silicon dioxide into an oilfield well group.

Carbon dioxide fluidity control device and method

A foam solution for profile control and plugging in heavy oil thermal recovery process, a preparation method thereof, and a method for profile control and plugging.

Foam solution and preparation thereof used for profile control and plugging in heavy oil thermal recovery process and method of profile control and plugging

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Qingdao, China

Linghui Xi