山东煤炭科技
山東煤炭科技
산동매탄과기
Shandong Coal Science and Technology
2015年
11期
40-41,44
,共3页
煤层气%U型井%水平井%套管完井%扶正器%固管
煤層氣%U型井%水平井%套管完井%扶正器%固管
매층기%U형정%수평정%투관완정%부정기%고관
CBM%U-shaped wells%horizontal wells%casing completion%centralizer%solidify casing
U型井是煤层气资源开采的一种新型模式，以往经验，U型井水平段多在煤层钻进，采用裸眼或割缝衬管方法完井，但这种方法在煤层顶、底板水平钻进段效果不佳，本文依据工程实例，介绍了套管完井技术在煤层气U型井水平井中的成功应用，不仅保证了井身质量合格，而且为后期压裂排采提供了保障，在类似煤层气U型井水平井完井作业时具有良好的应用前景，可逐步推广。
U型井是煤層氣資源開採的一種新型模式，以往經驗，U型井水平段多在煤層鑽進，採用裸眼或割縫襯管方法完井，但這種方法在煤層頂、底闆水平鑽進段效果不佳，本文依據工程實例，介紹瞭套管完井技術在煤層氣U型井水平井中的成功應用，不僅保證瞭井身質量閤格，而且為後期壓裂排採提供瞭保障，在類似煤層氣U型井水平井完井作業時具有良好的應用前景，可逐步推廣。
U형정시매층기자원개채적일충신형모식，이왕경험，U형정수평단다재매층찬진，채용라안혹할봉츤관방법완정，단저충방법재매층정、저판수평찬진단효과불가，본문의거공정실례，개소료투관완정기술재매층기U형정수평정중적성공응용，불부보증료정신질량합격，이차위후기압렬배채제공료보장，재유사매층기U형정수평정완정작업시구유량호적응용전경，가축보추엄。
U-shaped wells is a new mode of exploiting CMB resources, According to experience, the horizontal section of U-shaped well mostly dill along the coal seam, generally, the method completion of naked eye or slotted liner is used, but these methods are ineffective at horizontal drilling along the roof or lfoor of the seam. based on the engineering examples, the casing completion techniques for U-shaped CBM wells is thoroughly introducd in this article and it is successfully applied, it not only guarantees the wellbore quality ,but also provides protection for the late fracturing row of mining , therefore it has a good prospect in similar U-shaped CBM wells casing completion operations and can be gradually used to a wide range.
