underbalanced相关论文
充氮气欠平衡钻井防漏技术适应于低压低渗透储层和开发后期压力枯竭储层、不同压力体系的储层、裂缝油气藏或是曾经发生钻井液只进......
根据低压力储层水平井钻井油气层保护要求,通过室内研究形成了密度在0.89~0.99 g/cm3之间可调,具有良好乳化稳定性和流变性,防塌能......
欠平衡钻气井的井控问题长期以来一直是该技术领域的一道难题。通过分析井筒流动规律并耦合地层产气得出欠平衡钻气井井控的有效方......
四川元坝构造须家河层段,埋藏深、砂岩含石英、研磨性强、泥岩易水化膨胀且含煤层、机械钻速低、易井壁失稳,严重地制约了钻井工程......
川东北元坝地区的井位井眼尺寸大(Ф660.4 mm),环空间距大,地层可钻性差,出水量多,井眼清洁难度高。如果使用常规钻井,钻井周期长,成本高。......
随着我国薄层低压油气藏的开发需求,充气欠平衡钻水平井技术成为国内外钻井界关注的热点,井眼净化不畅造成钻具摩阻扭矩的增大严重......
阐述了负压钻井技术所必须具备的条件,介绍了负压钻井技术工艺及流程,并将其用于小拐油田5口生产井的开采,发现使用地油层污染较少,可提......
For decades,some geological formations have been drilled with a drilling fluid that exerted a bottom-hole pressure less ......
Foam is used widely in underbalanced drilling for oil and gas exploration to improve well perfor-mance.Accurate predicti......
Underbalanced drilling(UBD) is defined as a drilling operation in which circulating drilling fluid pressure is maintaine......