中国煤炭地质
中國煤炭地質
중국매탄지질
COAL GEOLOGY OF CHINA
2014年
2期
21-24
,共4页
低煤级%煤层气%勘探开发%黄陇侏罗纪煤田
低煤級%煤層氣%勘探開髮%黃隴侏囉紀煤田
저매급%매층기%감탐개발%황롱주라기매전
low coal rank%CBM%exploration and exploitation%Huanglong Jurassic coalfield
黄陵煤田侏罗纪煤层裂隙发育，渗透率高，煤层气开发的地质条件优越，即将成为我国煤层气开发一个重要的潜在接替领域，根据焦坪矿区和彬长矿区煤层气开发取得的成果，详细探讨了煤层气开发方式、井位部署、钻完井工艺、压裂工艺和排采工艺等关键技术，指出欠平衡钻进、基于储层保护的洞穴完井和分层控压联合排采将是该区煤层气开发技术发展的方向。
黃陵煤田侏囉紀煤層裂隙髮育，滲透率高，煤層氣開髮的地質條件優越，即將成為我國煤層氣開髮一箇重要的潛在接替領域，根據焦坪礦區和彬長礦區煤層氣開髮取得的成果，詳細探討瞭煤層氣開髮方式、井位部署、鑽完井工藝、壓裂工藝和排採工藝等關鍵技術，指齣欠平衡鑽進、基于儲層保護的洞穴完井和分層控壓聯閤排採將是該區煤層氣開髮技術髮展的方嚮。
황릉매전주라기매층렬극발육，삼투솔고，매층기개발적지질조건우월，즉장성위아국매층기개발일개중요적잠재접체영역，근거초평광구화빈장광구매층기개발취득적성과，상세탐토료매층기개발방식、정위부서、찬완정공예、압렬공예화배채공예등관건기술，지출흠평형찬진、기우저층보호적동혈완정화분층공압연합배채장시해구매층기개발기술발전적방향。
High permeability fissures are well developed in Jurassic coal seams in the Huanglong coalfield. The coalfield has advanta-geous geological condition for CBM exploitation, thus a momentous potential superseding area in the country. Based on CBM exploita-tion results in Jiaoping and Binchang mining areas, detailedly discussed key techniques in CBM exploitation mode, well deployment, drilling and completion, fracturing and drainage technologies. Finally, the author has pointed out that the underbalanced drilling, reser-voir preserving cavern completion and hierarchical pressure controlling combined drainage would be the CBM exploitation technologi-cal development trend in the area.
