Petroleum Reservoir Evaluation and Development >
2023 , Vol. 13 >Issue 5: 569 - 580
DOI: https://doi.org/10.13809/j.cnki.cn32-1825/te.2023.05.004
Prestack seismic prediction of sandstone reservoirs in the fifth member of Xujiahe Formation in Dongfengchang area of Ziyang
Received date: 2023-05-15
Online published: 2023-11-01
In the Dongfengchang area of Ziyang, the fifth member of Xujiahe Formation exhibits multiple phase of superimposed channels with rapid facies changes in the channel sandstones. The reservoirs are highly heterogeneous, with minimal differences in impedance between sandstones and mudstones. The seismic response characteristics of the reservoirs are multifaceted. Additionally, the pre-stack seismic data quality is suboptimal, compounded by an absence of shear wave logging data. In the preliminary stages, conventional post-stack attributes were used to characterize the boundaries of channel sand bodies and the distribution of high-quality reservoirs, but the accuracy of this characterization was limited. To address the mentioned challenges, high-quality pre-stack seismic data was obtained through noise suppression, data flattening, and optimal frequency enhancement techniques. An improved XU-WHITE model-based approach was utilized to predict shear wave velocities. Innovative indicators based on rock physics analysis were developed, and a seismic prediction volume for lithology and reservoir properties was obtained through simultaneous inversion of three pre-stack parameters. This approach allowed for a detailed characterization of sand body boundaries and distribution. In favorable facies zones, using property prediction attributes, the distribution of “sweet spots” within tight sandstone reservoirs was predicted. The research results indicate the following: ①High-fidelity pre-stack data optimization processing provides reliable and AVO-compliant pre-stack data, establishing a solid foundation for subsequent pre-stack inversion; ②The improved XU-WHITE model-based shear wave velocity prediction technique yields more accurate shear wave velocities, which are beneficial for rock physics analysis; ③The construction and inversion techniques of lithology and physical property indicator factors are effective in achieving a precise characterization of the lithology and physical properties of tight sandstone reservoirs. This technology has shown promising results in characterizing the tight sandstone reservoirs and predicting “sweet spots” in the Xujiahe Formation gas reservoirs in Ziyang. It holds potential for broader applications in similar geological settings.
Gongying ZHENG , Qibiao LYU , Yongjian YANG , Shoucheng XU . Prestack seismic prediction of sandstone reservoirs in the fifth member of Xujiahe Formation in Dongfengchang area of Ziyang[J]. Petroleum Reservoir Evaluation and Development, 2023 , 13(5) : 569 -580 . DOI: 10.13809/j.cnki.cn32-1825/te.2023.05.004
| [1] | 赵强, 赵路子, 田景春, 等. 川中、川南过渡带须家河组储集砂体成因类型及特征[J]. 沉积与特提斯地质, 2007, 27(2): 74-81. |
| [1] | ZHAO Qiang, ZHAO Luzi, TIAN Jingchun, et al. The genetic types of the reservoir sandstones from the Xujiahe Formation in the centra1-southern Sichuan transitional zone[J]. Sedimentary Geology & Tethyan Geology, 2007, 27(2): 74-81. |
| [2] | 陈小二, 范昆, 熊艳, 等. 川中AY地区须家河组地震层序与物源分析[J]. 岩性油气藏, 2014, 26(1): 45-51. |
| [2] | CHEN Xiaoer, FAN Kun, XIONG Yan, et al. Seismic sequence and provenance analysis of the Upper Triassic Xujiahe Formation in AY area[J]. Lithologic Reservoirs, 2014, 26(1): 45-51. |
| [3] | 周川闽, 宋丽红, 刘庆松, 等. 川中须家河组五段河道砂体地震沉积学刻画[J]. 西南石油大学学报(自然科学版), 2014, 36(4): 1-11. |
| [3] | ZHOU Chuanmin, SONG Lihong, LIU Qingsong, et al. Seismic geomorphology of channel belts of the 5th interval,Xujiahe Formation,Upper Triassic in central Sichuan Basin, China[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2014, 36(4): 1-11. |
| [4] | 刘柳红, 朱如凯, 罗平, 等. 川中地区须五段—须六段浅水三角洲沉积特征与模式[J]. 现代地质, 2009, 23(4): 667-675. |
| [4] | LIU Liuhong, ZHU Rukai, LUO Ping, et al. Characteristics and depositional models for the shallow-water deltas of the 5th-6th interval, Xujiahe Formation, upper triassic in central Sichuan Basin, China[J]. Geoscience, 2009, 23(4): 667-675. |
| [5] | 郑和荣, 刘忠群, 徐士林, 等. 四川盆地中国石化探区须家河组致密砂岩气勘探开发进展与攻关方向[J]. 石油与天然气地质, 2021, 42(4): 765-783. |
| [5] | ZHENG Herong, LIU Zhongqun, XU Shilin, et al. Progress and key research directions of tight gas exploration and development in Xujiahe Formation, Sinopec exploration areas, Sichuan Basin[J]. Oil & Gas Geology, 2021, 42(4): 765-783. |
| [6] | 曹烈, 王信, 黎青. 川中资阳地区须家河组含油气系统及勘探前景分析[J]. 天然气勘探与开发, 2012, 35(4):1-5. |
| [6] | CAO Lie, WANG Xin, LI Qing. Analysis of the Xujiahe Formation oil and gas system and exploration prospects in the Ziyang area of central Sichuan[J]. Natural Gas Exploration and Development, 2012, 35(4): 1-5. |
| [7] | 曾小英. 川中资阳地区须家河组地层划分与油气关系[C]. // 第五届全国沉积学大会学术委员会. 第五届全国沉积学大会论文集. 杭州: 石油工业出版社, 2013: 662-672. |
| [7] | ZENG Xiaoying. Stratigraphic division and oil and gas relationship of the Xujiahe Formation in the Ziyang area of central Sichuan[C].// Academic Committee of the 5th National Congress of Sedimentology. Proceedings of the 5th National Congress of Sedimentology. Hangzhou: Petroleum Industry Press, 2013: 662-672. |
| [8] | 刘玲, 沃玉进, 孙炜, 等. 龙门山前侏罗系沙溪庙组致密砂岩储层叠前地震预测[J]. 天然气地球科学, 2019, 30(7): 1072-1082. |
| [8] | LIU Ling, WO Yujin, SUN Wei, et al. Prestack seismic prediction of tight sandstones for Jurassic Shaximiao Formation in front of Longmenshan[J]. Natural Gas Geoscience, 2019, 30(7): 1072-1082. |
| [9] | 郑公营, 吕其彪, 赵爽, 等. 隐蔽河道砂体地震识别关键技术——以四川盆地中江气田中侏罗统沙溪庙组为例[J]. 天然气工业, 2022, 42(9): 35-46. |
| [9] | ZHENG Gongying, LYU Qibiao, ZHAO Shuang, et al. Key technologies for seismic identification of hidden channel sandbodies: A case study of middle Jurassic Shaximiao Formation in the Zhongjiang gas field of the Sichuan Basin[J]. Natural Gas Industry, 2022, 42(9): 35-46. |
| [10] | 师修琳. 叠前预测技术在提高河道砂岩储层预测分辨率中的有关探索——隐蔽河道刻画方法新探[J]. 地球科学前沿, 2022, 12(7): 1028-1038. |
| [10] | SHI Xiuling. Exploration of pre-stack prediction technology in improving prediction resolution of channel sandstone reservoir: A new approach to the delineation of concealed channels[J]. Advances in Geosciences, 2022, 12(7): 1028-1038. |
| [11] | 张军华, 吕宁, 田连玉, 等. 地震资料去噪方法技术综合评述[J]. 地球物理学进展, 21(2): 546-553. |
| [11] | ZHANG Junhua, LYU Ning, TIAN Lianyu, et al. An overview of the methods and techniques for seismic data noise attenuation[J]. Progress in Geophysics, 21(2): 546-553. |
| [12] | 王忠仁, 刘学伟, 马中高. f-x投影滤波衰减随机噪声[J]. 长春科技大学学报, 2000, 30(4): 393-396. |
| [12] | WANG Zhongren, LIU Xuewei, MA Zhonggao. Random noise attenuation by the f-x projection filtering[J]. Journal of Jilin University(Earth Science Edition), 2000, 30(4): 393-396. |
| [13] | 鲁娥. 混合Radon变换及相干噪声压制方法研究[D]. 西安: 长安大学, 2011. |
| [13] | LU E. Study on hybrid radon transform and coherent noise attenuation method[D]. Xi'an: Chang’an University, 2011. |
| [14] | 周鹏, 刘志斌, 张益明, 等. 一种动态的道集拉平方法研究及应用[J]. 断块油气田, 2015, 22(1): 58-61. |
| [14] | ZHOU Peng, LIU Zhibin, ZHANG Yiming, et al. Research and application of a dynamic gather flatten method[J]. Fault-Block Oil & Gas Field, 2015, 22(1): 58-61. |
| [15] | LI H F, WANG J, WEI Z R, et al. High-frequency compensation for seismic data based on adaptive generalized S transform[J]. Applied Geophysics, 2020, 17(5): 747-755. |
| [16] | 黄捍东, 冯娜, 王彦超, 等. 广义S变换地震高分辨率处理方法研究[J]. 石油地球物理勘探, 2014, 49(1): 82-88. |
| [16] | HUANG Handong, FENG Na, WANG Yanchao, et al. Research on high resolution seismic processing method using generalized S-transform[J]. Oil Geophysical Prospecting, 2014, 49(1): 82-88. |
| [17] | GREENBERG M L, CASTAGNA J P. Shear-wave velocity estimation in porous rocks: Theoretical formulation, preliminary verification and applications[J]. Geophysical Prospecting, 1992, 40(2): 195-209. |
| [18] | [ LEE M W. A simple method of predicting S-wave velocity[J]. Geophysics, 2006, 71(6): 161-164 |
| [19] | KEYS R G, XU S. An approximation for the Xu-White velocity model[J]. Geophysics, 2002, 67(5): 1406-1414. |
| [20] | 王金伟, 张尔华, 谢春临. 虚拟孔隙度优化Xu-White模型法预测横波速度[J]. 断块油气田, 2011, 18(4): 445-448. |
| [20] | WANG Jinwei, ZHANG Erhua, XIE Chunlin. Prediction of shear wave velocity with optimized Xu-White Model based on virtual porosity[J]. Fault-Block Oil and Gas Field, 2011, 18(4): 445-448. |
| [21] | 乔悦东, 高云峰, 安鸿伟. 基于XU-WHITE模型的优化测井横波速度预测技术研究与应用[J]. 石油天然气学报, 2007, 29(5): 100-102. |
| [21] | QIAO Yuedong, GAO Yunfeng, AN Hongwei. Study and application of optimal technique of shear-wave velocity prediction based on XU-WHITE model[J]. Journal of Oil and Gas Technology, 2007, 29(5): 100-102. |
| [22] | 孙振涛, 马永强. 一种地球物理勘探横波估算方法和系统: 104181585[P]. 2014-12-03. |
| [22] | SUN Zhentao, MA Yongqiang. A method and system for estimating shear waves in geophysical exploration: 104181585[P]. 2014-12-03. |
| [23] | CONNOLLY P. Robust workflows for seismic reservoir characterisation[J]. CSEG Recorder, 2010, 35(4): 7-8. |
| [24] | 李海英, 陈俊安, 龚伟, 等. 基于多属性融合叠前反演预测超深层断控储集体物性和流体性质[J]. 石油物探, 2022, 61(3): 543-555. |
| [24] | LI Haiying, CHEN Jun'an, GONG Wei, et al. Prediction of physical and fluid properties of ultra-deep fault-controlled reservoirs based on multi-attribute fusion prestack inversion[J]. Geophysical Prospecting for Petroleum, 2022, 61(3): 543-555. |
| [25] | 骆帅兵, 张莉, 赵裕辉, 等. 基于扩展弹性阻抗岩石物理分析技术在北康盆地含油气性检测中的应用[J]. 物探化探计算技术, 2021, 43(3): 331-339. |
| [25] | LUO Shuaibing, ZHANG Li, ZHAO Yuhui, et al. Application of extended elastic impedance based petrophysical analysis technique in oil-gas bearing detection in Beikang Basin[J]. Computing Techniques for Geophysical and Geochemical Exploration, 2021, 43(3): 331-339. |
| [26] | SIMMONS J L. Waveform-based AVO inversion and AVO prediction-error[J]. Geophysics, 2012, 61(6): 1575-1588. |
| [27] | BULAND A, OMRE H. Bayesian linearized AVO inversion[J]. Geophysics, 2003, 68(1): 185-198. |
| [28] | HAMPSON D P. Simultaneous Inversion of Pre-stack Seismic Data[J]. SEG Technical Program Expanded Abstracts, 2005, 24(1): 1633-1637. |
| [29] | 谷宇峰, 张道勇. 利用混合模型CRBM-PSO-XGBoost识别致密砂岩储层岩性[J]. 石油与天然气地质, 2021, 42(5): 1210-1222. |
| [29] | GU Yufeng, ZHANG Daoyong. Lithology identification in tight sandstone reservoirs using CRBM-PSO-XGBoost[J]. Oil & Gas Geology, 2021, 42(5): 1210-1222. |
| [30] | 黄彦庆, 刘忠群, 林恬, 等. 川东北元坝地区须家河组三段基于相控的相对优质储层预测[J]. 石油与天然气地质, 2021, 42(4): 863-872. |
| [30] | HUANG Yanqing, LIU Zhongqun, LIN Tian, et al. Lithofacies-based prediction of relatively high-quality reservoirs of the Xu 3 Member in Yuanba area, Northeastern Sichuan Basin[J]. Oil & Gas Geology, 2021, 42(4): 863-872. |
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