高清多边界探测技术在南海东部H油田的应用
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摘要
传统地质导向软件的反演计算使用静态三层模型,难以有效指导水平井在内幕复杂的储层中钻进。新一代探边工具PeriScope HD通过硬件更新增加了方位测量内容以及升级了方位测量质量,增强了信噪比和边界探测深度,实现了倾角测量内容和多参数反演服务的升级。新型探边工具在不依赖于邻井测井数据的随机反演算法的基础上,反演剖面不再限定为三层模型,可拓展为多层地层模型,并且能够实现多套地层界面精细刻画,降低了边界位置不确定性,使得倾角预测更加精确,有效应对多层叠置储层带来的地质导向困难。通过南海东部H油田2口井的应用实例,证明了该技术在复杂地层情况下提高砂岩钻遇率的有效性,为深化地质研究提供基础信息。
The static three-layer model used in traditional geosteering software for inversion calculation is difficult to effectively guide drilling a horizontal well into complex reservoirs. Periscope HD, a new generation of Schlumberger edge detection tool, increases azimuth information and improves azimuth quality after updating hardware, thus enhances signal-to-noise ratio and detected boundary depth(21 ft), and updates dip information and multi-parameter inversion service. Independent on the random inversion algorithm of the logging data from adjacent wells, the new edge detection tool doesn't limit the inversion profile to a three-layer model, but expands it to a multi-layer model. Moreover, it can realize the fine characterization of the boundary of more than one layer, reduce the uncertainty of boundary position, make dip prediction more accurate, and effectively deal with the difficulty in geological guidance caused by multi-layer superimposed reservoirs. Field applications in two wells in the H oilfield in eastern South China Sea have proved that the technology is effective to improve the sandstone drill-in rate in complex formations, and can provide basic information for deep investigation.
The static three-layer model used in traditional geosteering software for inversion calculation is difficult to effectively guide drilling a horizontal well into complex reservoirs. Periscope HD, a new generation of Schlumberger edge detection tool, increases azimuth information and improves azimuth quality after updating hardware, thus enhances signal-to-noise ratio and detected boundary depth(21 ft), and updates dip information and multi-parameter inversion service. Independent on the random inversion algorithm of the logging data from adjacent wells, the new edge detection tool doesn't limit the inversion profile to a three-layer model, but expands it to a multi-layer model. Moreover, it can realize the fine characterization of the boundary of more than one layer, reduce the uncertainty of boundary position, make dip prediction more accurate, and effectively deal with the difficulty in geological guidance caused by multi-layer superimposed reservoirs. Field applications in two wells in the H oilfield in eastern South China Sea have proved that the technology is effective to improve the sandstone drill-in rate in complex formations, and can provide basic information for deep investigation.
引文
[1] WANG T,CHEMALI R,HART E,et al.Real-time formation imaging,dip,and azimuth while drilling from compensated deep directional resistivity [C]//SPWLA 48th Annual Logging Symposium,June 3-4,2007.
[2] ZHANG Z Y,GONGUET C,RAJANI V,et al.Directional LWD resistivity tools and their business impacts [C]//SPWLA 49th Annual Logging Symposium,Edinburgh UK,May 26-29,2008.
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[4] 蔡军,张恒荣,曾少军,等.随钻电磁波电阻率测井联合反演方法及其应用 [J].石油学报,2016,37(3):371-381.
[5] BELL C,HAMPSON J,EADSFORTH P,et al.Navigating and imaging in complex geology with azimuthal propagation resistivity while drilling [C]//2006 SPE Annual Technical Conference and Exhibition,Sep 24-27.
[6] BITTAR M,KLEIN J,BESTE R,et al.A new azimuthal deep-reading resistivity tool for geosteering and advanced formation evaluation [C]//SPE Annual Technical Conference and Exhibition,Nov 11-14,2007.
[7] LI S J,CHEN J F,TOMMY L BINFORD.Using new LWD measurements to evaluate formation resistivity anisotropy at any dip angle [C]//SPWLA 55th Annual Logging Symposium,Abu Dhabi,United Arab Emirates,June 18-22,2014.
[8] WANG L,LI H,FAN Y R,et al.Sensitivity analysis and inversion processing of azimuthal resistivity logging-while-drilling measurements [J].Journal of Geophysics and Engineering,2018,9(15):2339-2349.
[9] 王磊,范宜仁,袁超,等.随钻方位电磁波测井反演模型选取及适用性 [J].石油勘探与开发,2018,45(05):914-922.
[10] WU Y,LI J,WAN J,et al.Delineate the laminated reservoir profile while drilling for optimal well placement with uncertainty management [C]//SPE Bergen One Day Seminar,Bergen,Norway,20 April,2016.
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(1)非法定计量单位,1 ft=12 in=0.304 8 m,下同
[2] ZHANG Z Y,GONGUET C,RAJANI V,et al.Directional LWD resistivity tools and their business impacts [C]//SPWLA 49th Annual Logging Symposium,Edinburgh UK,May 26-29,2008.
[3] DZEVAT OMERAGIC,ALAIN DUMONT,CENGIZ ESMERSOY,et al.Sensitivities of directional electromagnetic measurements for well placement and formation evalutation while drilling [C]//SEG Annual Meeting,New Orleans,Louisiana,USA,October 1-6,2006.
[4] 蔡军,张恒荣,曾少军,等.随钻电磁波电阻率测井联合反演方法及其应用 [J].石油学报,2016,37(3):371-381.
[5] BELL C,HAMPSON J,EADSFORTH P,et al.Navigating and imaging in complex geology with azimuthal propagation resistivity while drilling [C]//2006 SPE Annual Technical Conference and Exhibition,Sep 24-27.
[6] BITTAR M,KLEIN J,BESTE R,et al.A new azimuthal deep-reading resistivity tool for geosteering and advanced formation evaluation [C]//SPE Annual Technical Conference and Exhibition,Nov 11-14,2007.
[7] LI S J,CHEN J F,TOMMY L BINFORD.Using new LWD measurements to evaluate formation resistivity anisotropy at any dip angle [C]//SPWLA 55th Annual Logging Symposium,Abu Dhabi,United Arab Emirates,June 18-22,2014.
[8] WANG L,LI H,FAN Y R,et al.Sensitivity analysis and inversion processing of azimuthal resistivity logging-while-drilling measurements [J].Journal of Geophysics and Engineering,2018,9(15):2339-2349.
[9] 王磊,范宜仁,袁超,等.随钻方位电磁波测井反演模型选取及适用性 [J].石油勘探与开发,2018,45(05):914-922.
[10] WU Y,LI J,WAN J,et al.Delineate the laminated reservoir profile while drilling for optimal well placement with uncertainty management [C]//SPE Bergen One Day Seminar,Bergen,Norway,20 April,2016.
[11] LI Q M,DZEVAT OMERAGIC.New directional electromagnetic tool for proactive geostreering and accurate formation evaluation while drilling [C]//SPWLA 46th Annual Logging Symposium,June 26-29,2005.
(1)非法定计量单位,1 ft=12 in=0.304 8 m,下同