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According to China Petroleum Network (special correspondent Yang Hua, correspondents Liu Liming and Xia Lin), on December 8, reporters learned from the Coalbed Methane Company that the company is advancing its \"ballast stone\" projects in existing gas fields by leveraging both technological innovation and management optimization. To date, the cumulative production of shallow and intermediate coalbed methane from the company’s Hancheng field has exceeded 1.8 billion cubic meters, with the overall decline rate in that field remaining stable at below 9% for a long time. Leveraging high-precision seismic data and detailed logging information, the coalbed methane company develops 3D geological models for entire blocks, enabling accurate characterization of the microstructural features of gas reservoirs, as well as the thickness of coal seams and the distribution patterns of the rock types in the upper and lower strata. Through targeted optimization on a per-well basis, the efficiency of measures implemented in these blocks remains consistently above 80%. At the same time, to address technical challenges such as rod and pipe corrosion, uneven wear downhole, and coal dust clogging the pumps, which hinder the stable production of older wells, the company’s engineering team continuously optimizes the production parameters of these gas wells. By using specialized tools such as weighted rods and downhole aligners, they manage to reduce the wear and damage caused by uneven stress on the rods and pipes ； The use of special piping such as lined oil pipes and anti-corrosion pumping rods significantly enhances the corrosion resistance of the downhole tubing string ； By innovatively introducing an anti-coal dust self-cleaning pump in combination with a circulating water replenishment system, the problem of pump jamming caused by coal dust deposition has been successfully resolved. To improve the efficiency of gas well management, the coalbed methane company has innovatively adopted a \"five-element approach.\" Through measures such as creating data cards for individual wells, enhancing \"integrated\" collaborative management, developing models for analyzing the decline in gas well performance, improving the precision of production and operation oversight, and conducting thorough daily monitoring and analysis, the extraction efficiency of these gas wells has been increased by more than three times, thereby laying a solid managerial foundation for maintaining stable production in existing fields.