准噶尔盆地玛湖凹陷泥页岩水化特性及分类研究

发布时间：2018-06-03 00:27

本文选题：玛湖凹陷 + 配伍性　；参考：《科学技术与工程》2017年01期

【摘要】：准噶尔盆地玛湖凹陷在使用水基钻井液钻进时,因所用钻井液体系与地层配伍性差,导致地层崩落掉块严重,井壁失稳频发;且储层损害较大。为解决所存在的问题,对取自玛湖凹陷的岩样进行了全岩矿物成分与黏土矿物分析。在相关分析的基础上对该区块泥页岩的水化特性进行了预测;并通过水化膨胀与水化分散实验对所预测的泥页岩水化特性进行了验证。在室内实验的基础上,建立了泥页岩水化特性分类图版概念;并利用此图版对玛湖凹陷泥页岩的水化特性进行了准确和直观的分类界定,为今后开展的适用于该区块的多元协同钻井液体系中各个单元的权重设计,以及整个钻井液体系的技术研究提供了重要的理论指导依据,最终实现钻井液体系与地层的配伍,服务钻井作业。
[Abstract]:When using water-based drilling fluid in Mahu Sag Junggar Basin because of the poor compatibility between the drilling fluid system and the formation caving block is serious and the wellbore is unstable frequently and the reservoir is damaged greatly. In order to solve the existing problems, the whole rock mineral composition and clay mineral analysis of rock samples taken from Mahu sag were carried out. On the basis of correlation analysis, the hydration characteristics of shale in this block are predicted, and the predicted hydration characteristics of shale are verified by hydration expansion and hydration dispersion experiments. On the basis of laboratory experiments, the concept of shale hydration characteristics classification plate is established, and the hydration characteristics of mud shale in Mahu sag are classified accurately and intuitively. It provides an important theoretical basis for the weight design of each unit in the multi-element cooperative drilling fluid system suitable for the block and the technical research of the whole drilling fluid system in the future, and finally realizes the compatibility of the drilling fluid system with the formation. Service drilling operation.
【作者单位】：新疆油田公司工程技术研究院;西南石油大学石油与天然气工程学院;
【基金】：中国石油天然气集团公司“新疆大庆”重大专项(2012E-31-13)资助
【分类号】：TE24

【相似文献】