川西新场地区须家河组工程地质特征及优快钻井对策研究  

Study on Engineering Geological Characters and Fast Drilling Methods of Xinchang Xujiahe Formation in West Sichuan

作　　者：杨志彬[1,2] 张国东[2] 黄建林[2] 刘善华[2] 胡永章[2] 张生军[2] 李洪文 

机构地区：[1]成都理工大学能源学院,四川成都610059 [2]中石化西南油气分公司工程技术研究院,四川德阳618000 [3]中石化西北油气分公司,新疆轮台841600

出　　处：《石油天然气学报》2008年第6期278-281,393,共4页Journal of Oil and Gas Technology

基　　金：中石化股份公司石化科技部项目(P06059)

摘　　要：川西新场地区深井钻井地质条件复杂,由于须家河组气藏具有三高一深的特征以及地层具有岩石致密,须五段、须三段页岩和须二段砂岩石英含量高等因素,导致地层研磨性强,有时还会导致严重的钻井复杂事故。这些复杂的情况严重制约了钻速的提高,增加了钻井成本,危及钻井安全。在对新场地区钻井工程地质特征分析的基础上,有针对性地提出提高须家河组钻井速度的技术途径,对加快该地区须家河组气藏的勘探速度有着重要意义。The drilling geologic conditions of deep well in Xinchang Area were complicated, because of the 'three high and one deep' features and the tight lithology of Xujiahe Reservoir, and because of the shale in T3x3 and T3x5 strata as well as the high quartz content in T3x2, the strata were very abrasive, and might cause drilling accident. All these complicated conditions may seriously restrict the drilling speed and even endanger drilling safety as well as the process of exploratory development. Based on analysis of the drilling geologic conditions, the technical measures are proposed to enhance the drilling speed in Xujiahe Strata properly, which is significance to the exploratory development of Xujiahe Reservoir.

关 键 词：川西坳陷 地质特征 须家河组 钻井 提速对策 

分 类 号：P618.13[天文地球—矿床学]