石油化工高等学校学报Issue(5)：37-41,45,6.DOI:10.3969/j.issn.1006-396X.2013.05.009
吐哈油田玉果区块防塌钻井液技术研究
Technology of Anti-Sloughing Drilling Fluid in Yuguo Area of Tuha Oilfield
摘要
Abstract
The formation mineral composition , micro structure and physical-chemical properties of representative shale samples of deep complex shale formation in Yuguo area of Tuha oilfield were analyzed by X-ray diffraction ,Scanning Electron Microscope ,swelling and dispersion tests , specific surface area capacity measurement , specific water capacity and other experimental methods the mechanisms of wellbore instability in deep complex formation were made clear .A three cooperation principle for stabilizing wellbore by improving the performance of drilling fluid was put forward .This method includes the technologies of sealing and consolidating side well-bore physic-chemically ,enhancing inhibition against hydration and providing the effective stress support of reasonable drilling fluid density .The responding anti-sloughing drilling fluid which is suitable to deep complex formation in Yuguo area was developed by selecting all kinds of additives and optimized formulation .The site trial indicates that this drilling fluid has great capacity to anti-sloughing and sealing layer .The drilling fluid is easy to manage and maintain .Using this drilling fluid can improve drilling velocity and save drilling cost .关键词
井壁稳定/失稳机理/多元协同/防塌钻井液Key words
Wellbore stability/Instability mechanism/Multi-component combination/Anti-sloughing drilling fluid分类
能源科技引用本文复制引用
毛惠,邱正松,黄维安,张世锋..吐哈油田玉果区块防塌钻井液技术研究[J].石油化工高等学校学报,2013,(5):37-41,45,6.基金项目
十二五国家科技重大专项（2011ZX05021-004）；“海洋油气井钻完井理论与工程”教育部创新团队（IRT1086）。 （）
