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洞穴井完井工艺技术
释义
洞穴井完井工艺技术
Encyclopedia
工学
煤层气钻井
释
openhole cavity completion technology
洞穴井完井工艺技术
裸眼完井后,人为地在煤层裸眼井段形成一个稳定的大洞穴,以消除钻井时发生的污染,同时在井眼周围形成含有大量张性裂缝的卸载区,扩大煤层的裸露面积,提高井筒周围自然裂隙的渗透性,使井眼与地层之间实现有效连通而达到增产目的的方法。
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forecast classification
forecasting
forecasting and early warning
forecasting and planning in vocational education
forecasting error method
forecasting flood and drought hazards
forecasting geologic model
Forecasting human resource requirements
forecasting marine hazards
forecasting model
forecasting of underground space demand
forecast of agrometeorological conditions
forecast of catch
forecast of crop development stage
forecast of fishing condition
forecast of forest fire
forecast of harvest period
Forecast of human resource supply
forecast of mining geological structure
forecast of prairie fire risk
forecast of sowing date
forecast of transplant date
forecooler
forecooling
foredeep
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