轨迹误差分析在连通井轨道设计中的应用
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摘要
井眼轨迹的不确定性使连通井眼的相对位置变得难以准确预测。为深入研究连通井两井间的轨迹误差,基于对常规测斜工具误差理论研究及软件的误差数据分析,结合连通工具的性能参数,定量描述井眼不确定性对连通井的影响,并将结果应用于连通井的轨道设计中,理论上可提高连通的成功率。研究结果表明:井眼轨迹的不确定性范围随井深和井斜的增大而增大,测距点设计时应加以考虑该影响;通过建模绘制的测距点选择图版可预估测距点的选择范围,从而简化设计步骤,为连通井轨道设计提供了技术支持。
Due to uncertainties in borehole trajectory, it is very difficult to predict relatively positions of communicated wells accurately. To study errors in trajectories of two communicated wells, theories related to errors of conventional inclinometers, together with analysis over error data by software and performance parameters of communication tools were used in combination to highlight impact of borehole uncertainty on communicated well quantitatively. Relevant research conclusions can be used in trajectory design of communicated wells. In theory, these researches may enhance success rate of communication. Research results show that the extent of uncertainties in borehole trajectory may increase with well depth and inclination. Such impact shall be considered during design of distance-measuring points. By using the selection chart for ranging points generated through model construction, extent for potential ranging points can be determined in advance to simplify design procedures. Relevant research results may provide technical supports for trajectory design of communicated wells.
Due to uncertainties in borehole trajectory, it is very difficult to predict relatively positions of communicated wells accurately. To study errors in trajectories of two communicated wells, theories related to errors of conventional inclinometers, together with analysis over error data by software and performance parameters of communication tools were used in combination to highlight impact of borehole uncertainty on communicated well quantitatively. Relevant research conclusions can be used in trajectory design of communicated wells. In theory, these researches may enhance success rate of communication. Research results show that the extent of uncertainties in borehole trajectory may increase with well depth and inclination. Such impact shall be considered during design of distance-measuring points. By using the selection chart for ranging points generated through model construction, extent for potential ranging points can be determined in advance to simplify design procedures. Relevant research results may provide technical supports for trajectory design of communicated wells.
引文
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[16]胡汉月.对接井靶区建槽若干问题探讨[J].探矿工程(岩土钻掘工程),2014(7):20-23.HU Hanyue.Discussion of cavity development in the target area of intersection well pair[J].Exploration Engneering(Rock&Soil Drilling and Tunneling),2014(7):20-23.
[17]邵佩.测斜仪误差校正方法的理论与实验研究[D].武汉:武汉科技大学,2012.SHAO Pei.Theoretical and experimental investigation on error correction method of inclinometer[D].Wuhan:Wuhan University of Science and Technology,2012.
[18]王瑞,王伯雄,康健,刘涛.水平定向钻进随钻姿态测量及误差补偿[J].清华大学学报:自然科学版,2010,50(2):215-218.WANG Rui,WANG Boxiong,KANG Jian,LIU Tao.Attitude measurement and error compensation for horizontal directional drilling[J].Journal of Tsinghua University:Science and Technology,2010,50(2):215-218.
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[20]OSKARSEN R T,WRIGHT J W,WINTER D,FITTERER D,NEKUT A G,SHECKLER J E.Rotating magnetic ranging service and single wire guidance tool facilitates in efficient downhole well connections[R].SPE 119420-MS,2009.
[21]李峰飞,蒋世全,李汉兴,许亮斌.救援井电磁探测工具分析及应用研究[J].石油机械,2014,42(1):56-61.LI Fengfei,JIANG Shiquan,LI Hanxing,XU Liangbin.Analysis of electromagnetic probe for relief well[J].China Petroleum Machinery,2014,42(1):56-61.
[22]李翠,高德利.救援井与事故井连通探测方法初步研究[J].石油钻探技术,2013,41(3):56-61.LI Cui,GAO Deli.Preliminary research on detection method for connection relief well to blowout well[J].Petroleum Drilling Techniques,2013,41(3):56-61.
[23]胡汉月.人工磁导航定向钻进中靶系统研究[D].北京:中国地质大学(北京),2009.HU Hanyue.Research on the artificial magnetic targethitting system[D].Beijing:China University of Geosciences(Beijing),2009
[24]JONES D L,HOEHN G L,KUCKES A F.Improved magnetic model for determination of range and direction to a blowout well[J].SPE Drilling Engineering,1987,2(4):316-322.
[2]VOISIN J A,OUIROZ G A,POUNDS R,WRIGHT J,BIERMAN K.Relief well pianning and drilling for slb-5-4x blowout,lake maracaibo.Venezuela[R].SPE 16677,1987.
[3]LERAAND F,WRIGHT J W,ZACHARY M B,THOMPSON B G.Relief-well planning and drilling for a north sea underground blowout[J].Journal of Petroleum Technology,1992,44(3):266-273.
[4]WRIGHT J,OLDHAM G.General relief well intervention strategy[R].Chevron,1999.
[5]NOORT R,ABRANT C,TOWLE J.Well planning based on passive magnetic MWD ranging and magnetized casing[R].SPE 159404,2012.
[6]TOLSON K,WOERTMAN R,WOERTMAN R.Guidelines on relief well planning[M].Oil&Gas UK,2013.
[7]GOSSE A,ZALLAS R.Relief well ranging customer guide[R].Halliburton-Sperry Drilling,2014.
[8]陈炜卿.定向井轨迹误差分析及三维可视化描述研究[D].青岛:中国石油大学,2007.CHEN Weiqing.Error analysis of well trajectory and its visualization research[D].Qingdao:China University of Petroleum,2007.
[9]CORPORATION L G.Directional survey uncertainty models in compass[DB/CD],2008.
[10]WILLIAMSON H S.Accuracy prediction for directional measurement while drilling[J].SPE Drilling&Completion,2000,15(4):221-233.
[11]WILLIAMSON H S.Accuracy prediction for directional MWD[R].SPE 56702-MS,1999.
[12]WOLFF C J M.Borehole position uncertainty-analysis of measuring methods and derivation of systematic error model[J].Journal of Petroleum Technology,1981,33(12):2339-2350.
[13]雷景辉.井眼轨迹测量技术的研究[D].西安:西安石油大学,2000.LEI Jinghui.Study on measurement technology of well trajectory[D].Xi’an:Xi’an Shiyou University,2000.
[14]曹向峰,管志川,王智锋,孙峰.煤层气连通井导向钻井钻头定位方法[J].石油钻采工艺,2016,38(2):151-155.CAO Xiangfeng,GUAN Zhichuan,WANG Zhifeng,SUN Feng.Drill bit positioning method based on connected well guidance for coalbed methane[J].Oil Drilling&Production Technology,2016,38(2):151-155.
[15]闫永维,高德利,吴志永.煤层气连通井引导技术研究[J].石油钻采工艺,2010,32(2):23-25.YAN Yongwei,GAO Deli,WU Zhiyong.Study on guidance technology for coal-bed methane connected wells.[J].Oil Drilling&Production Technology,2010,32(2):23-25.
[16]胡汉月.对接井靶区建槽若干问题探讨[J].探矿工程(岩土钻掘工程),2014(7):20-23.HU Hanyue.Discussion of cavity development in the target area of intersection well pair[J].Exploration Engneering(Rock&Soil Drilling and Tunneling),2014(7):20-23.
[17]邵佩.测斜仪误差校正方法的理论与实验研究[D].武汉:武汉科技大学,2012.SHAO Pei.Theoretical and experimental investigation on error correction method of inclinometer[D].Wuhan:Wuhan University of Science and Technology,2012.
[18]王瑞,王伯雄,康健,刘涛.水平定向钻进随钻姿态测量及误差补偿[J].清华大学学报:自然科学版,2010,50(2):215-218.WANG Rui,WANG Boxiong,KANG Jian,LIU Tao.Attitude measurement and error compensation for horizontal directional drilling[J].Journal of Tsinghua University:Science and Technology,2010,50(2):215-218.
[19]GRILLS T L.Magnetic ranging technologies for drilling steam assisted gravity drainage well pairs and unique well geometries-a comparison of technologies[R].SPE 79005-MS,2002.
[20]OSKARSEN R T,WRIGHT J W,WINTER D,FITTERER D,NEKUT A G,SHECKLER J E.Rotating magnetic ranging service and single wire guidance tool facilitates in efficient downhole well connections[R].SPE 119420-MS,2009.
[21]李峰飞,蒋世全,李汉兴,许亮斌.救援井电磁探测工具分析及应用研究[J].石油机械,2014,42(1):56-61.LI Fengfei,JIANG Shiquan,LI Hanxing,XU Liangbin.Analysis of electromagnetic probe for relief well[J].China Petroleum Machinery,2014,42(1):56-61.
[22]李翠,高德利.救援井与事故井连通探测方法初步研究[J].石油钻探技术,2013,41(3):56-61.LI Cui,GAO Deli.Preliminary research on detection method for connection relief well to blowout well[J].Petroleum Drilling Techniques,2013,41(3):56-61.
[23]胡汉月.人工磁导航定向钻进中靶系统研究[D].北京:中国地质大学(北京),2009.HU Hanyue.Research on the artificial magnetic targethitting system[D].Beijing:China University of Geosciences(Beijing),2009
[24]JONES D L,HOEHN G L,KUCKES A F.Improved magnetic model for determination of range and direction to a blowout well[J].SPE Drilling Engineering,1987,2(4):316-322.