泡沫钻井在大牛地气田盒1气层的应用

Application of Foam Drilling in He 1 Gas Layer of Daniudi Gas Field

摘要:

为有效解放气层，且对应用欠平衡技术开发大牛地气田盒1气藏进行经济技术评价，在盒1气层开展了氮气泡沫欠平衡钻井试验，实现了全过程欠平衡，有效保护了储层，机械钻速较常规水平井大幅度提高，为大牛地低渗气田的开发提供了 技术储备。

Abstract:

Nitrogion foam under-balanced drilling test was made to effectively release gas reservoir and evaluate the technical and economic feasibility of under-balanced horizontal well in developing He 1 gas reservoir of Daniude gas field, whole process under-balanced was realized to protect the gas reservoir with higher penetration rate than common horizontal well drilling. It provides the technical reserve for the development of Daniudi low permeability gas field.