渤海35油田非均质储层钻井应对技术
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摘要
渤海35油田沙河街组水平井穿层较多,整体水平段砂泥岩比例不稳定、交互较多,若处理措施不当,易发生井壁失稳,也易造成防砂管柱下入困难、盲管配管较多以及投产后筛管堵塞严重的问题。通过钻进过程中使用随钻工具及时跟踪,调整井眼轨迹,对钻井液体系、钻井工艺技术等方面进行调整,有效提高了渤中深部地层强非均质水平井油层钻遇率,得出了一些实际操作的方法和经验,对深部地层强非均质水平井现场实施具有较高的参考价值。
The horizontal well drilling passes through different strata in Shahejie formation of Bohai 35 oilfield,sandstonemudstone ratio is unstable in the whole horizontal section with lots of interbedding,which is easy to lead to wall instability,difficulty of sand control pipe running,many blind pipes setting and serious screen pipe blockage in production. By the use of while-drilling tools,timely tracking and adjustments of borehole trajectory,drilling fluid system,drilling technology and some other aspects,the oil reservoir encountering rate in severe heterogeneous reservoir of deep strata in middle Bohai Sea has been effectively improved. Some operation methods and experiences can be reference to the field construction of severe heterogeneous reservoir horizontal well in deep strata.
The horizontal well drilling passes through different strata in Shahejie formation of Bohai 35 oilfield,sandstonemudstone ratio is unstable in the whole horizontal section with lots of interbedding,which is easy to lead to wall instability,difficulty of sand control pipe running,many blind pipes setting and serious screen pipe blockage in production. By the use of while-drilling tools,timely tracking and adjustments of borehole trajectory,drilling fluid system,drilling technology and some other aspects,the oil reservoir encountering rate in severe heterogeneous reservoir of deep strata in middle Bohai Sea has been effectively improved. Some operation methods and experiences can be reference to the field construction of severe heterogeneous reservoir horizontal well in deep strata.
引文
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[2]和鹏飞,孔志刚.Power Drive Xceed指向式旋转导向系统在渤海某油田的应用[J].探矿工程(岩土钻掘工程),2013,41(11):45-48.
[3]和鹏飞,侯冠中,朱培,等.海上914.4 mm井槽弃井再利用实现单筒双井技术[J].探矿工程(岩土钻掘工程),2016,43(3):45-48.
[4]徐荣强,邢洪宪,张仁勇,等.渤海湾边际油田水平井钻完井技术[J].石油钻采工艺,2008,30(2):53-56.
[5]李凡,王晓鹏,张海,等.渤海D油田WHPA平台大位移水平井钻修机钻井作业实践[J].中国海上油气,2012,24(2):50-53.
[6]朱培,和鹏飞,侯冠中,等.渤中某深井套管阻卡原因及应对措施分析[J].石油工业技术监督,2016,32(8):61-63.
[7]帅春岗,段永刚,冉林,等.水平井ICD控水方法研究[J].石油钻采工艺,2012,34(1):85-88.
[8]王超,张军杰,刘广燕.水平井分段控水完井试油技术[J].石油天然气学报,2010(6):446-449.
[9]李良川,肖国华,王金忠,等.冀东油田水平井分段控水配套技术[J].断块油气田,2010,17(6):655-658.