China Petroleum Engineering & Construction Corporation (CPECC) has successfully commissioned the country’s first integrated carbon capture and enhanced gas recovery (CCUS-EGR) pilot project at the Maokou gas reservoir in the Wolonghe field, southwest China.
Source: China Chemical Industry News
China Petroleum Engineering & Construction Corporation (CPECC) has successfully commissioned the country’s first integrated carbon capture and enhanced gas recovery (CCUS-EGR) pilot project at the Maokou gas reservoir in the Wolonghe field, southwest China.
This marks a national first in two areas: industrial-scale CO₂ capture from natural gas processing tail gas, and reinjection of captured carbon for enhanced gas recovery. The project also features China’s first carbon capture unit designed for low-pressure, low- to mid-concentration CO₂ streams.
Using chemical absorption technology, the unit captures an estimated 26,500 tonnes of CO₂ annually, which is then reinjected into the reservoir to boost gas production by up to 10%. The process not only improves recovery rates but also recycles emissions, supporting near-zero discharge goals.
The project applies the patented CPC-3 technology, representing a breakthrough in adapting carbon capture systems to lower-pressure, dilute CO₂ environments. Its success offers both a technical and commercial model for decarbonizing traditional oil and gas operations.
Next, CPECC’s Southwest Branch will work closely with project partners to refine system performance, audit energy use and operating costs, and implement full life-cycle management. The company aims to use the project’s outcomes to accelerate its low-carbon transition and contribute to China’s broader “dual carbon” goals.
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