中国矿业
中國礦業
중국광업
CHINA MINING MAGAZINE
2015年
4期
105-107
,共3页
水力压裂%煤层透气性%瓦斯抽采
水力壓裂%煤層透氣性%瓦斯抽採
수력압렬%매층투기성%와사추채
hydraulic fracturing%coal seam permeability%gas extration
针对王行庄矿二1煤层透气性、瓦斯预抽率低等问题，提出了水力压裂增透技术，分析了水力压裂增加煤层透气性机理，确定了水力压裂工艺及参数，并在二1煤层11091运输巷进行了水力压裂技术试验。结果表明：实施水力压裂后，煤层瓦斯平均抽采浓度提高了5．3倍，瓦斯抽采量提高了6．1倍，提高煤层透气性和瓦斯抽采率的效果较理想。
針對王行莊礦二1煤層透氣性、瓦斯預抽率低等問題，提齣瞭水力壓裂增透技術，分析瞭水力壓裂增加煤層透氣性機理，確定瞭水力壓裂工藝及參數，併在二1煤層11091運輸巷進行瞭水力壓裂技術試驗。結果錶明：實施水力壓裂後，煤層瓦斯平均抽採濃度提高瞭5．3倍，瓦斯抽採量提高瞭6．1倍，提高煤層透氣性和瓦斯抽採率的效果較理想。
침대왕행장광이1매층투기성、와사예추솔저등문제，제출료수력압렬증투기술，분석료수력압렬증가매층투기성궤리，학정료수력압렬공예급삼수，병재이1매층11091운수항진행료수력압렬기술시험。결과표명：실시수력압렬후，매층와사평균추채농도제고료5．3배，와사추채량제고료6．1배，제고매층투기성화와사추채솔적효과교이상。
Because of poor permeability and low gas extraction rate of Ⅱ 1 coal seam at Wang‐xing Village mine ,the hydraulic fracturing permeability improvement technology is proposed .The mechanism on permeability improvement by hydraulic fracturing is analyzed ,then the process and parameters of hydraulic fracturing are determined .Finally ,hydraulic fracturing experiment was conducted at 11091 haulage roadway of Ⅱ 1 coal seam .Results showed that the average concentration of gas extraction increased 5 .3 times and the total quantity of gas extraction increased 6 .1 times after the implementation of hydraulic fracturing . Consequently ,the technology of hydraulic fracturing has perfect effects on improvement of permeability and gas extraction rate .
