低密度水包油钻井液在中原油田水平井的应用
投稿时间：2010-03-19  修订日期：2010-03-19  点此下载全文
引用本文：郑德荣,孙善刚,李国保,等.低密度水包油钻井液在中原油田水平井的应用[J].钻探工程,2010,37(9):15-18.
ZHENG De-rong,SUN Shan-gang,LI Guo-bao,et al. Application of Oil-in-water Low-density Drilling Fluid in Horizontal Wells of Zhongyuan Oilfield[J]. Drilling Engineering, 2010,37(9):15-18.
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作者单位E-mail
郑德荣* 中原石油勘探局钻井三公司 zqqy0616@sina.com 
孙善刚 中原石油勘探局钻井工程技术研究院  
李国保 中原石油勘探局钻井一公司  
黄宁 中原石油勘探局钻井工程技术研究院  
史沛谦 中原石油勘探局钻井工程技术研究院  
中文摘要: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，防塌能力强的低密度水包油钻井液配方。在达平1井等井的现场应用中，水包油钻井液性能稳定，易于维护调节，钻井施工安全快速，能够满足低压水平井近平衡、欠平衡钻井和地质要求，保护储层作用明显，收到了良好的应用效果。
中文关键词:欠平衡  低密度  钻井液  水平井  水包油  储层保护
 
Application of Oil-in-water Low-density Drilling Fluid in Horizontal Wells of Zhongyuan Oilfield
Abstract:To satisfy the requirements of protecting hydrocarbon reservoir of low pressure reservoir horizontal well, by means of research in laboratory, oil-in-water drilling fluid formula with variable density in 0.89~0.99g/cm3was obtained. This oil-in-water low density drilling fluid has good capability of emulsion stability, rheological property and anti-sloughing property. The result of application in Daping #1 well showed that the drilling fluid has stable property and can be simply maintained and adjusted for safe and fast drilling operation. It also can satisfy the demands of near-balanced drilling & underbalanced drilling for low pressure horizontal well and geologic requirement. There are obvious effects for hydrocarbon reservoir protection.
keywords:underbalanced  low density  drilling fluid  horizontal well  oil-in-water  reservoir protection
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