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煤层分支水平井
释义
煤层分支水平井
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工学
煤层气钻井
释
multi-lateral horizontal well of coalbed methane
煤层分支水平井
在一个或多个主水平井眼两侧侧钻多个分支井眼,或在分支井眼再侧钻若干脉支井眼作为泄气通道,同时在距水平井井口一定距离处再钻一口直井与水平井在煤层连通,水平井作为工程井,直井作为排水降压采气井,也有不采用直井而将水平井作为排水采气井的情况,是适应煤层气开发的一种分支井形式。
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soil acidification
soil acidity
soil acid neutralizing capacity
soil acid saturation degree
soil actinomycetes
soil active acidity
soil adhesion
soil adhesive
soil-adjusted vegetation index,SAVI
soil adsorption
soil adsorption isotherm
soil aeration
soil ages
soil aggregate fractionation
soil aggregates
soil air
soil air sampler
soil algae
soil alkalinity
soil alkalinization
soil amelioration
soil amendment
soil ammonium fixation
soil analysis
soil and atmospherically resistant vegetation index,SARVI
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