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延长气田水平井钻井液技术研究与应用
Research and Application of Horizontal Well Drilling Fluid in Yanchang Gas Field
张永利1,2 吴高祥2 王延东 2 张飞2 吴贝贝2
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作者单位:1. 西安石油大学 2.陕西延长石油(集团)有限责任公司油气勘探公司
中文关键字:水平井钻井液;KCl聚磺钻井液体系;井壁稳定;防漏堵漏
英文关键字:horizontal well drilling fluid; potassium chloride- polysulfonate drilling fluids system ;borehole stability; lost circulation controlling and plugging
中文摘要:鄂尔多斯盆地延长气田气藏类型多为低孔低渗砂岩气藏,水平井可以扩大泄流面积,充分挖掘储层潜能,提高气田单井产量,进而提高气田的综合开发效益。延长气田自2011年开始水平井钻探,但是钻井过程中经常钻遇井漏、井塌等复杂与事故,导致钻井周期长,水平井开发效益不明显。通过对水平井的地质、工程概况和钻井液技术难点进行分析,找出钻井液使用过程中存在的情况及问题,提出合理钻井液体系及相应的技术对策,对延长气田水平井钻井钻井液技术的改进与提高,将具有重要意义。
英文摘要:Yanchang gas field is a low porosity - low permeability sanded gas reservoir in Ordos Basin, the horizontal well can expand the fluid-release area, fully tap the potential of the reservoir, improve the single well production, and thus improve the comprehensive development of the gas field. Yanchang gas field began to drill horizontal well from 2011,lost circulation and borehole wall sloughing are often suffered during the drilling, which had led to long drilling cycle and poor development benefit of horizontal well. According to conclude geological characteristics , general situation and drilling fluid technical problems ,analyze usage and problems of different kinds of drilling mud, put forward reasonable drilling fluid system ,as well as the satisfactory downhole safe measure, it will be of great significance of horizontal well drilling fluid technology in Yanchang gas field .
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国内统一连续出版物号:CN51-1159/TE |国内发行代码: |国际标准出版物号:ISSN1673-3177 |国际发行代码:
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