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Shale future: supercritical carbon dioxide waterless fracturing

For the industry's forerunners, every step forward is a brand new blue ocean. For the complete solution of Ai Si's oil supercritical carbon dioxide fracturing, the Blue Ocean is already at the foot. This solution is designed for the development of oil and

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Shale future: supercritical carbon dioxide waterless fracturing

Compared to other hydraulic fracturing schemes


Supercritical carbon dioxide fracturing hardly causes damage to the reservoir, and all fractures are basically effective cracks. Although 20% to 85% of methane gas exists in an adsorbed state, the pulverizer cannot separate it, but supercritical carbon dioxide can replace the methane gas adsorbed on the parent rock by its own superabsorbent force, and directly increase the natural gas. Or the production of coalbed methane and the partial storage of carbon dioxide. At the same time, with its own energy-enhancing effect, after the pressure is released, the supercritical carbon dioxide can be rapidly vaporized and expanded, and the complete well washing and discharging can be quickly realized within 1 to 4 hours, which is convenient for the operator to evaluate the reservoir productivity in time.



Program composition

The whole solution consists of liquid carbon dioxide storage tanks, pressurized equipment, special pressure-mixing sand mixing equipment, high-pressure pumping equipment, and remote data monitoring equipment. The carbon dioxide resources used in the operation can be realized by carbon recovery in high-emission industries such as coal chemical, steel, cement, thermal power, etc., which not only protects the atmospheric environment, but also provides a continuous supply of carbon dioxide resources for fracturing operations. At present, the application of supercritical carbon dioxide and waterless fracturing in low-permeability oilfields has an outstanding effect on increasing production. The Changqing, Zhongyuan and Jilin oil fields have experimental construction operations.