Construction of technology and management system for pollution reduction and carbon mitigation in normal-pressure shale gas development in ecologically sensitive areas
FANG Dazhi
Abstract：Large-scale shale gas development in ecologically sensitive areas is confronted with severe environmental challenges such as water resource consumption,land occupation,and solid waste management.Taking the normal-pressure shale gas field in Nanchuan,Southeastern Sichuan as the engineering context,a management-technology dual-driven green development system has been established,covering the entire process of source reduction,process control,resource recycling,and terminal treatment.Engineering practice demonstrated that the system achieved 100%resource utilization of both oil-based and water-based drilling cuttings,as well as 100%compliance treatment and reuse of produced water;it has cumulatively reduced land acquisition by 13.33 hectares,saved 95.1×103 tons of standard coal,cut CO2 emissions by 46.6×103 tons,and significantly lowered operational noise and annular pressure buildup rates.The results indicate that this system effectively mitigates ecological disturbances and pollution emissions during shale gas development,offering a replicable and scalable solution for green development in ecologically sensitive regions.It provides an important reference for advancing the clean transition of unconventional natural gas in China.
Keywords：Southeastern Sichuanshale gasgreen developmentmanagement and technology systempollution control
Publication Date：2025-12-31
Online Publishing Date：2026-01-16(First online date of this platform, not the publication date of the document)
Pages：9( 194-202 )