Abstract：Based on analysis of horizontal well data characteristics, the differences of data distribution and variogram between vertical and horizontal wells in MPE3 oil field of Orinoco heavy oil belt were compared, and modeling strategies were proposed to cope with the big data paradox when data of horizontal wells was used directly into geologic modeling. The study shows the horizontal wells in the study area contain a large quantity of information, strong directionality of well trajectories and high drilling ratio of sandstone, causing variogram analysis result unconformable to the geologic understanding, and in turn making errors in the modeling of sedimentary microfacies and reservoir physical properties and prediction of probabilistic reserves. Firstly, the distributary channel distribution variogram was analyzed with data of vertical wells, and then the lithofacies framework was established under the control of the sedimentary facies and seismic data. After that, the horizontal wells data revealing high heterogeneity accuracy of reservoir, was combined with the vertical wells data to analyze argillaceous interlayer variograms and the corresponding reservoir lithofacies models were constructed. Finally, reservoir physical property models were generated and the geological reserves were calculated by wellblocks. This reservoir modeling method does not only reflect the geologic features underground, but also improve the accuracy of inter-well sand body prediction, and enhance the reliability of reservoir geologic model ultimately.
黄文松, 王家华, 陈和平, 徐芳, 孟征, 李永豪. 基于水平井资料进行地质建模的大数据误区分析与应对策略[J]. 石油勘探与开发, 2017, 44(6): 939-947.
HUANG Wensong, WANG Jiahua, CHEN Heping, XU Fang, MENG Zheng, LI Yonghao. Big data paradox and modeling strategies in geological modeling based on horizontal wells data. Petroleum Exploration and Development, 2017, 44(6): 939-947.
[1] 汪志明, 杨健康, 张权, 等. 基于大尺寸实验的水平井筒压降预测模型评价[J]. 石油勘探与开发, 2015, 42(2): 238-241. WANG Zhiming, YANG Jiankang, ZHANG Quan, et al. Evaluation of horizontal wellbore single-phase pressure drop models based on large-scale experiment[J]. Petroleum Exploration and Development, 2015, 42(2): 238-241. [2] 赵继勇, 樊建明, 何永宏, 等. 超低渗—致密油藏水平井开发注采参数优化实践: 以鄂尔多斯盆地长庆油田为例[J]. 石油勘探与开发, 2015, 42(1): 68-75. ZHAO Jiyong, FAN Jianming, HE Yonghong, et al. Optimization of horizontal well injection-production parameters for ultra-low permeable-tight oil production: A case from Changqing Oilfield, Ordos Basin[J]. Petroleum Exploration and Development, 2015, 42(1): 68-75. [3] 韩德金, 王永卓, 战剑飞, 等. 大庆油田致密油藏井网优化技术及应用效果[J]. 大庆石油地质与开发, 2014, 33(5): 30-35. HAN Dejin, WANG Yongzhuo, ZHAN Jianfei, et al. Optimizing techniques and their application effects for the well patterns of Daqing tight oil reservoirs[J]. Petroleum Geology & Oilfield Development in Daqing, 2014, 33(5): 30-35. [4] 刘合, 兰中孝, 王素玲, 等. 水平井定面射孔条件下水力裂缝起裂机理[J]. 石油勘探与开发, 2015, 42(6): 794-800. LIU He, LAN Zhongxiao, WANG Suling, et al. Hydraulic fracture initiation mechanism in the definite plane perforating technology of horizontal well[J]. Petroleum Exploration and Development, 2015, 42(6): 794-800. [5] MA X, AL-HARBI M, DATTA-GUPTA A, et al. An efficient two-stage sampling method for uncertainty quantification in history matching geological models[R]. SPE 102476, 2008. [6] JUNKER H, PLAS L, DOSE T, et al. Modern approach to estimation of uncertainty of predictions with dynamic reservoir simulation: A case study of a German Rotliegend Gas Field[R]. SPE 103340, 2006. [7] RODRÍGUEZ R, SOLANO K, GUEVARA S, et al. Integration of subsurface, surface and economics under uncertainty in Orocual Field[R]. SPE 107259, 2007. [8] DOLIGEZ B, CHEN L. Quantification of uncertainties on volumes in place using geostatistical approaches[R]. SPE 64767, 2000. [9] CAPEN E. Probabilistic reserves! here at last?[R]. SPE 73828, 2001. [10] 郝建明, 吴健, 张宏伟. 应用水平井资料开展精细油藏建模及剩余油分布研究[J]. 石油勘探与开发, 2009, 36(6): 730-736. HAO Jianming, WU Jian, ZHANG Hongwei. Study on fine reservoir modeling and distribution of remaining oil with data of horizontal wells[J]. Petroleum Exploration and Development, 2009, 36(6): 730-736. [11] 王伟. 水平井资料在精细油藏建模中的应用[J]. 岩性油气藏, 2012, 24(3): 79-82. WANG Wei. Application of horizontal well data to detailed reservoir modeling[J]. Lithologic Reservoirs, 2012, 24(3): 79-82. [12] SCHUYLER J. Probabilistic reserves lead to more accurate assessments[R]. SPE 49032, 1998. [13] GAIR R. Integrating deterministic and probabilistic reserves[R]. SPE 82000, 2003. [14] MUDA P, WU L, NAVPREET S, et al. Integrating horizontal wells in 3D geological model using sequence stratigraphic framework in braided channel complex of the Changbei Gas Field, Ordos Basin, China[R]. Beijing: International Petroleum Technology Conference, 2013. [15] SUTA I, OSISANYA S. Geological modelling provides best horizontal well positioning in geologically complex reservoirs[R]. Alberta, Canada: Petroleum Society’s 5th Canadian International Petroleum Conference, 2004. [16] 陈浩, 陈和平, 黄文松, 等. 委内瑞拉奥里诺科重油带Carabobo油区M区块Morichal段地层沉积演化特征[J]. 西安石油大学学报(自然科学版), 2016, 31(1): 45-52. CHEN Hao, CHEN Heping, HUANG Wensong, et al. Sedimentary evolution characteristics of morichal member in M Block of Carabobo area of Orinoco heavy-oil belt, Venezuela[J]. Journal of Xi’an Shiyou University (Natural Science Edition), 2016, 31(1): 45-52. [17] ETTAJER T, FONTANELLI L, DIAZ A. Integration of horizontal wells in the modeling of carbonates reservoir: Upscaling and economical assessment challenges[R]. Houston, Texas: Offshore Technology Conference, 2014. [18] PINDELL J L, KENNAN L, WRIGHT D, et al. Clastic domains of sandstones in central/eastern Venezuela, Trinidad, and Barbados: Heavy mineral and tectonic constraints on provenance and paleogeography[J]. Geological Society London Special Publications, 2009, 328(1): 743-797. [19] LABOURDETTE R, CASAS J, IMBERT P. 3D sedimentary modelling of a Miocene deltaic reservoir unit, Sincor Field, Venezuela: A new approach[J]. Journal of Petroleum Geology, 2008, 31(2): 135-151. [20] MARTINIUS A W, HEGNER J, KAAS I, et al. Sedimentology and depositional model for the Early Miocene Oficina Formation in the Petrocedeño Field (Orinoco heavy-oil belt, Venezuela)[J]. Marine and Petroleum Geology, 2012, 35(1): 352-380. [21] 刘亚明. Orinoco重油带重油成藏特征[J]. 石油与天然气地质, 2013, 34(3): 315-322. LIU Yaming. Heavy oil accumulation characteristics of the Orinoco heavy oil belt[J]. Oil & Gas Geology, 2013, 34(3): 315-322. [22] 魏漪, 冉启全, 李冉, 等. 基于分区补给物质平衡法预测致密油压裂水平井动态储量[J]. 石油勘探与开发, 2016, 43(3): 448-455. WEI Yi, RAN Qiquan, LI Ran, et al. Determination of dynamic reserves of fractured horizontal wells in tight oil reservoirs by multi-region material balance method[J]. Petroleum Exploration and Development, 2016, 43(3): 448-455. [23] 张克鑫, 黄文松, 郭松伟, 等. 奥里诺科重油带M区块层序界面识别和高分辨率层序地层格架建立[J]. 石油天然气学报, 2012, 34(7): 11-16. ZHANG Kexin, HUANG Wensong, GUO Songwei, et al. Sequence Orinoco boundary heavy oil characteristics and high resolution sequence stratigraphic framework of M Block in Orinoco heavy-oil belt[J]. Journal of Oil and Gas Technology, 2012, 34(7): 11-16. [24] 陈浩, 陈和平, 黄文松, 等. 委内瑞拉奥里诺科重油带沉积特征[J]. 地质科技情报, 2016(4): 103-110. CHEN Hao, CHEN Heping, HUANG Wensong, et al. Sedimentary characteristics of the Orinoco heavy-oil belt, Venezuela[J]. Geological Science and Technology Information, 2016(4): 103-110. [25] MA Y Z, POINTE P. Uncertainty analysis and reservoir modeling[M]. Tulsa: AAPG, 2011.
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