Lacustrine carbonate reservoir prediction in Yingxi,Qaidam Basin with the facies-constrained and segmented-frequency-band inversion
Zhu Chao1, Liu Zhanguo1, Yang Shaoyong2, Xia Zhiyuan1, Li Senming1, Wang Peng3
1. Hangzhou Research Institute of Geology, PetroChina, Hangzhou, Zhejiang 310023, China; 2. Exploration Department, Qinghai Oilfield Company, PetroChina, Dunhuang, Gansu 736202, China; 3. Exploration and Development Research Institute, Qinghai Oilfield Company, PetroChina, Dunhuang, Gansu 736202, China
Abstract:Lacustrine carbonate reservoirs in the upper member of Xiaganchaigou formation,Yingxi,Qaidam Basin are characterized by complex lithology,poor physical property,and strong heterogeneity.As the formation,the distribution and oil-gas accumulation of lacustrine carbonate reservoirs are controlled by sag palaeo-highs in the study area,we propose a facies-constrained and segmented-frequency-band inversion to predict lacustrine carbonate reservoirs based on sedimentary cycles,palaeo-terrain,and seismic logging facies constraints.The interpolation in low frequency models constructed by the inversion is achieved with a facies zone,which is different from conventional interpolations based on the distance.First we conduct the analysis of the geological stratigraphy,palaeo-geomorphology,and lithofacies.Then we build a low frequency model with segmented-frequency-band imaging,phase transform,and so on.Finally we achieve segmented-frequency-band nonlinear inversion constrained by the low frequency model to predict complex targets.Based on our application in Yingxi,a favorable reservoir zone of 150 km2 is predicted and this prediction matches very well drilling and geological data,which proves effectiveness of the proposed approach.
匡立春,唐勇,雷德文等.准噶尔盆地二叠系咸化湖相云质岩致密油形成条件与勘探潜力.石油勘探与开发, 2012,39(6):657-667.Kuang Lichun,Tang Yong,Lei Dewen et al.Formation conditions and exploration potential of tight oil in the Permian saline lacustrine dolomitic rock,Junggar Basin,NW China.Petroleum Exploration and Deve-lopment,2012,39(6):657-667.
[2]
杜韫华.渤海湾地区下第三系湖相碳酸盐岩及沉积模式.石油与天然气地质,1990,11(4):377-392.Du Yunhua.Eogene lacustrine carbonate rocks and sedimentary model in Bohai Bay region.Oil & Gas Geology,1990,11(4):377-392.
[3]
彭传圣.湖相碳酸盐岩有利储集层分布——以渤海湾盆地沾化凹陷沙四上亚段为例.石油勘探与开发,2011,38(4):435-443.Peng Chuansheng.Distribution of favorable lacustrine carbonate reservoirs:A case from the Upper Es4 of Zhanhua Sag,Bohai Bay Basin.Petroleum Exploration and Development,2011,38(4):435-443.
[4]
张葳,李智武,冯逢等.川中东北部中-下侏罗统湖相碳酸盐岩碳氧同位素特征及其古环境意义.古地理学报,2013,15(2):247-259.Zhang Wei,Li Zhiwu,Feng Feng et al.Carbon and oxy-gen isotopic composition of lacustrine carbonate rocks of the Lower-Middle Jurassic in NE part of central Sichuan Province and their palaeoenvironmental significance.Journal of Palaeogeography,2013,15(2):247-259.
[5]
王广利,王铁冠,张林晔.济阳坳陷渤南洼陷湖相碳酸盐岩成烃特征.石油学报,2007,28(2):61-68.Wang Guangli,Wang Tieguan,Zhang Linye.Hydrocarbon-generation characteristics for lacustrine carbonate source rocks in Bonan Sag of Jiyang Depression.Acta Petrolei Sinica,2007,28(2):61-68.
[6]
夏青松,田景春,倪新锋.湖相碳酸盐岩研究现状及意义.沉积与特提斯地质,2003,23(1):105-112.Xia Qingsong,Tian Jingchun,Ni Xinfeng.Lacustrine carbonate rocks in China:An overview.Sedimentary Geology and Tethyan Geology,2003,23(1):105-112.
[7]
蒲秀刚,周立宏,肖敦清等.黄骅坳陷歧口凹陷西南缘湖相碳酸盐岩地质特征.石油勘探与开发,2011,38(2):136-144.Pu Xiugang,Zhou Lihong,Xiao Dunqing et al.Lacustrine carbonate in the southwest margin of Qikou Sag,Huanghua Depression,Bohai Bay Basin.Petroleum Exploration and Development,2011,38(2):136-144.
[8]
妥进才,黄杏珍.湖相碳酸盐岩生油岩研究进展.地球科学进展,1996,11(6):585-589.Tuo Jincai,Huang Xingzhen.Advances on lacustrine carbonate source rock research.Advance in Earth Sciences,1996,11(6):585-589.
[9]
Cohen A S,Thouin C.Near-shore carbonate deposits in lake Tanganyika.Geology,1987,15(5):414-418.
[10]
Bustillo M A,Arribas M E,Bustillo M.Dolomitization and silicification in low-energy lacustrine carbonates (Paleogene,Madrid Basin,Spain).Sedimentary Geology,2002,151(1/2):107-126.
[11]
喻林,何燕,陈红等.基于古地貌恢复的湖相碳酸盐岩沉积模式研究.石油地球物理勘探,2016,51(增刊):126-130.Yu Lin,He Yan,Chen Hong et al.Analysis of lacustrine carbonate sedimentary patterns based on paleo-geomorphic restoration.OGP,2016,51(S):126-130.
[12]
闫伟鹏,杨涛,李欣等.中国陆上湖相碳酸盐岩地质特征及勘探潜力.中国石油勘探,2014,19(4):11-17.Yan Weipeng,Yang Tao,Li Xin et al.Geological cha-racteristics and hydrocarbon exploration potential of lacustrine carbonate rock in China.China Petroleum Exploration,2014,19(4):11-17.
[13]
印兴耀,李坤,宗兆云等.时频联合域贝叶斯地震反演方法.石油物探,2017,56(2):250-260.Yin Xingyao,Li Kun,Zong Zhaoyun et al.Seismic inversion in joint time-frequency domain based on Bayesian scheme.GPP,2017,56(2):250-260.
[14]
关达,张卫华,管路平等.相控储层预测技术及其在大牛地气田D井区的应用.石油物探,2006,45(3):230-233.Guan Da,Zhang Weihua,Guan Luping et al.Reservoir prediction under the constrain of seismic or sediment phase and application to DND gas field.GPP,2006,45(3):230-233.
[15]
黄捍东,罗群,付艳等.地震相控非线性随机反演研究与应用.石油地球物理勘探,2007,42(6):694-698.Huang Handong,Luo Qun,Fu Yan et al.Study and application of seismic phase-controlled non-linear random inversion.OGP,2007,42(6):694-698.
[16]
刘魁元.渤南洼陷沙三段浊积水道砂岩油藏相控储层预测.中国石油大学学报(自然科学版),2008,32(1):24-28.Liu Kuiyuan.Faces-controlling reservoir prediction of turbidity channel sandstone reservoir of Es3 in Bonan subsag.Journal of China University of Petroleum (Edition of Natural Science),2008,32(1):24-28.
[17]
李斌,王兴志,聂万才等.塔河油田卡4段地层相控储层预测.地球物理学进展,2009,24(6):2163-2168.Li Bin,Wang Xingzhi,Nie Wancai et al.Prediction of facies-controlled reservoir karratha four in Tahe oilfield.Progress in Geophysics,2009,24(6):2163-2168.
[18]
陈美伊,秦月霜,王建民等.基于等时相控反演的致密砂岩储层地震识别方法.石油地球物理勘探,2016,51(4):782-791.Chen Meiyi,Qin Yueshuang,Wang Jianmin et al.Tight sandstone reservoir identification based on isochronal phase-controlled inversion.OGP,2016,51(4):782-791.
[19]
张志伟,王春生,林雅平等.地震相控非线性随机反演在阿姆河盆地A区块碳酸盐岩储层预测中的应用.石油地球物理勘探,2011,46(2):304-310.Zhang Zhiwei,Wang Chunsheng,Lin Yaping et al.Application of facies-controlled nonlinear randon inversion for carbonate reservoir prediction in Block A of Amu-darya Basin.OGP,2011,46(2):304-310.
[20]
周生友,许杰,马艳等.滨里海盆地F区块盐下深层碳酸盐岩相控储层预测.中山大学学报(自然科学版),2013,52(4):138-142.Zhou Shengyou,Xu Jie,Ma Yan et al.Facies-constrained reservoir prediction of pre-salt carbonate re-servoir deeply buried in F-block of the Caspian Basin.Acta Scientiarum Naturalium Universitatis Sunyatseni,2013,52(4):138-142.
[21]
Zeng H L,Henry S C,Riola J P.Stratal slicing,Part Ⅱ:Real 3-D seismic data.Geophysics,1998,63(2):514-522.
[22]
Zeng H L,Backus M M.Interpretive advantages of 90° phase wavelets,Part 1:Modeling.Geophysics,2005,70(3):C7-C15.
[23]
Zeng H L,Backus M M.Interpretive advantages of 90° phase wavelets,Part 2:Seismic applications.Geophysics,2005,70(3):C17-C24.
[24]
赵俊青,夏斌,纪友亮等.湖相碳酸盐岩高精度层序地层学探析.沉积学报,2005,23(4):646-656.Zhao Junqing,Xia Bin,Ji Youliang et al.Analysis of the high resolution sequence of lacustrine carbonate.Acta Sedimentologica Sinica,2005,23(4):646-656.
[25]
王建国,蒋传杰,常森等.克拉通盆地微古地貌恢复的构造趋势面转换法.石油学报,2017,38(1):77-104.Wang Jianguo,Jiang Chuanjie,Chang Sen et al.Structural trend surface conversion method for micro-amplitude paleotopographic restoration of Cratonic basins.Acta Petrolei Sinica,2017,38(1):77-104.
[26]
朱超,斯春松,宫清顺等.柴达木盆地红柳泉地区致密油储层地震预测方法.石油学报,2014,35(6):1106-1112.Zhu Chao,Si Chunsong,Gong Qingshun et al.Seismic prediction method for tight oil reservoir in Hongliu-quan area of Qaidam Basin.Acta Petrolei Sinica,2014,35(6):1106-1112.
[27]
赵子豪,李凌,马跃华等.辫状河沉积储层预测技术——以大港探区孔店油田为例.石油地球物理勘探,2017,52(1):152-159.Zhao Zihao,Li Ling,Ma Yuehua et al.Braided river sedimentary reservoir prediction:an example of Kongdian Oilfield in Dagang.OGP,2017,52(1):152-159.
[28]
张永刚.地震波阻抗反演技术的现状和发展.石油物探,2002,41(4):385-390.Zhang Yonggang.The present and future of wave impedance inversion tehnique.GPP,2002,41(4):385-390.
于建国,韩文功,刘力辉.分频反演方法及应用.石油地球物理勘探,2006,41(2):193-197.Yu Jianguo,Han Wengong,Liu Lihui.Frequency-divided inversion and application.OGP,2006,41(2):193-197.
[31]
陶倩倩,李达,杨希冰等.利用分频反演技术预测烃源岩.石油地球物理勘探,2015,50(4):706-713.Tao Qianqian,Li Da,Yang Xibing et al.Hydrocarbon source rock prediction with frequency-divided inversion.OGP,2015,50(4):706-713.