岩性油气藏 ›› 2020, Vol. 32 ›› Issue (1): 120–127.doi: 10.12108/yxyqc.20200113

• 勘探技术 • 上一篇    下一篇

川中地区须二段气藏地震预测陷阱分析及对策——以龙女寺区块为例

李新豫1, 张静1,2, 包世海1, 张连群1, 朱其亮3, 闫海军1, 陈胜1   

  1. 1. 中国石油勘探开发研究院, 北京 100083;
    2. 中国石油勘探开发研究院 西北分院, 兰州 730020;
    3. 中国石油集团渤海钻探工程有限公司 井下作业分公司, 河北 任丘 062552
  • 收稿日期:2019-04-09 修回日期:2019-07-01 出版日期:2020-01-21 发布日期:2019-11-22
  • 通讯作者: 张静(1970-),博士,高级工程师,主要从事地震解释与储层预测方面的研究工作。Email:zhangj8@petrochina.com.cn。 E-mail:zhangj8@petrochina.com.cn
  • 作者简介:李新豫(1985-),硕士,工程师,主要从事储层预测与烃类检测方面的工作。地址:(065007)河北省廊坊市广阳区中国石油勘探开发研究院廊坊院区。Email:lixinyu69@petrochina.com.cn
  • 基金资助:
    国家“十三五”科技重大专项“致密气富集规律与勘探开发关键技术”（编号：2016ZX05047）资助

Analysis and countermeasures of seismic prediction traps for Xu-2 gas reservoir in central Sichuan Basin: a case study from Longnyusi block

LI Xinyu1, ZHANG Jing1,2, BAO Shihai1, ZHANG Lianqun1, ZHU Qiliang3, YAN Haijun1, CHEN Sheng1   

  1. 1. PetroChina Research Institute of Petroleum Exploration&Development, Beijing 100083, China;
    2. PetroChina Research Institute of Petroleum Exploration and Development-Northwest, Lanzhou 730020, China;
    3. Downhole Operation Company, Bohai Drilling Engineering Co., Ltd, CNPC, Renqiu 062552, Hebei, China
  • Received:2019-04-09 Revised:2019-07-01 Online:2020-01-21 Published:2019-11-22

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摘要： 四川盆地川中地区上三叠统须家河组二段天然气资源丰富，勘探开发潜力巨大，但近年来既无重大勘探发现又无很好的开发经济效益，究其原因是对须二气藏富集区的分布认识不清。通过研究总结了须二气藏富集区地震预测中存在3类致命预测陷阱：①没有充分认识须二段有效储层纵向分布位置及其对应的地震反射特征；②须二上段泥岩夹层发育，泥岩夹层和有效储层反射特征相似；③气层与水层、干层地震反射特征差异小；形成了模型正演识别纵向上不同位置储层反射特征、地震分频反演识别泥岩、叠前AVO技术区分气层、水层、干层等针对性技术对策，在川中地区龙女寺区块须二段气藏预测中进行了应用，新完钻井预测符合率达到90%以上。这些技术提高了须二上段气藏预测精度，有效地支撑了须二段气藏勘探开发工作。

关键词: 地震反射特征, 预测陷阱, 模型正演, 分频反演, 叠前AVO技术, 须二段, 四川盆地

Abstract: The second member of Xujiahe Formation of Upper Triassic in central Sichuan Basin is rich in natural gas resources and has great potential for exploration and development. However,in recent years,there are neither significant exploration discoveries nor good economic benefits. The reason is the unclear understanding of the distribution of the enriched area of Xu-2 reservoir. Based on study,three kinds of fatal prediction traps in the seismic prediction of the Xujiahe gas reservoir enrichment area were summarized:(1) Insufficient understanding of the vertical distribution of the effective reservoir and its corresponding seismic reflection characteristics; (2) the mudstone interlayer in upper Xu-2 were well developed,the reflection characteristics of mudstone interlayer and effective reservoir are similar;(3) the difference of seismic reflection characteristics between gas layer,water layer and dry layer is small. According to the three kinds of prediction traps in the prediction process,some targeted technical countermeasures were formed,such as forward modeling to identify reservoir characteristics,frequency division inversion to identify mudstone,prestack AVO technology to distinguish gas layer,water layer and dry layer,which were applied in the prediction of Xu-2 gas reservoir in Longnyusi block,central of Sichuan Basin,and the new drilling forecast compliance rate was more than 90%. These techniques improve the prediction accuracy of Xu-2 gas reservoir and effectively support the exploration and development of the Xu-2 gas reservoir.

Key words: seismic reflection characteristic, prediction trap, forward modeling, frequency division inversion, prestack AVO technology, the second member of Xujiahe Formation, Sichuan Basin

中图分类号: 

  • P631.4
[1] 李国辉, 李楠, 谢继荣, 等.四川盆地上三叠统须家河组前陆大气区基本特征及勘探有利区. 天然气工业, 2012, 32(3):15-21. LI G H, LI N, XIE J R, et al. Basic features of large gas play fairways in the Upper Triassic Xujiahe Formation of the Sichuan Foreland Basin and evaluation of favorable exploration zones. Natural Gas Industry, 2012, 32(3):15-21.
[2] 赵文智, 卞从胜, 徐兆辉.苏里格气田与川中须家河组气田成藏共性与差异.石油勘探与开发, 2013, 40(4):400-408. ZHAO W Z, BIAN C S, XU Z H. Similarities and differences between natural gas accumulations in Sulige Gas Field in Ordos Basin and Xujiahe gas field in central Sichuan Basin. Petroleum Exploration and Development, 2013, 40(4):400-408.
[3] 柴毓, 王贵文.致密砂岩储层岩石物理相分类与优质储层预测:以川中安岳地区须二段储层为例.岩性油气藏, 2016, 28(3):74-84. CHAI Y, WANG G W. Petrophysical facies classification of tight sandstone reservoir and high-quality reservoir prediction:a case study from the second member of Xujiahe Formation in Anyue area, central Sichuan Basin. Lithologic Reservoirs, 2016, 28(3):74-84.
[4] 魏国齐, 李剑, 谢增业, 等.中国大气田成藏地质特征与勘探理论.石油学报, 2013, 34(增刊1):1-13. WEI G Q, LI J, XIE Z Y, et al. Reservoir geology and exploration theories of large gas fields in China. Acta Petrolei Sinica, 2013, 34(Suppl 1):1-13.
[5] 张响响, 邹才能, 朱如凯, 等.川中地区上三叠统须家河组储层成岩相.石油学报, 2011, 32(2):257-264. ZHANG X X, ZOU C N, ZHU R K, et al. Reservoir diagenetic facies of the Upper Triassic Xujiahe Formation in the central Sichuan Basin. Acta Petrolei Sinica, 2011, 32(2):257-264.
[6] 赖锦, 王贵文.川中蓬莱地区须二段气藏特征及有利含气区预测.岩性油气藏, 2012, 24(5):43-48. LAI J, WANG G W. Gas reservoir characteristics of the second member of Xujiahe Formation and prediction of favorable gas bearing zones in Penglai area,central Sichuan Basin. Lithologic Reservoirs, 2012, 24(5):43-48.
[7] 陶艳忠, 蒋裕强, 王猛, 等.遂宁-蓬溪地区须二段储层成岩作用与孔隙演化.岩性油气藏, 2014, 26(1):58-64. TAO Y Z, JIANG Y Q, WANG M, et al. Reservoir diagenesis and porosity evolution of the second member of Xujiahe Formation in Suining-Pengxi area. Lithologic Reservoirs, 2014, 26(1):58-64.
[8] 徐安娜, 汪泽成, 赵文智, 等.四川盆地须家河组二段储集体非均质性特征及其成因.天然气工业, 2011, 31(11):53-58. XU A N, WANG Z C, ZHAO W Z, et al. Features and genesis of reservoir heterogeneity in the second member of the Upper Triassic Xujiahe Formation, Sichuan Basin. Natural Gas Industry, 2011, 31(11):53-58.
[9] 赵文智, 王红军, 徐春春, 等.川中地区须家河组天然气藏大范围成藏机理与富集条件. 石油勘探与开发, 2010, 37(2):146-157. ZHAO W Z, WANG H J, XU C C, et al. Reservoir-forming mechanism and enrichment conditions of the extensive Xujiahe Formation gas reservoirs,central Sichuan Basin. Petroleum Exploration and Development, 2010, 37(2):146-157.
[10] 易士威, 林世国, 杨威, 等.四川盆地须家河组大气区形成条件.天然气地球科学, 2013, 24(1):1-8. YI S W, LIN S G, YANG W, et al. Condition of Xujiahe Formation large gas province formation in Sichuan Basin. Natural Gas Geoscience, 2013, 24(1):1-8.
[11] 陈涛涛, 贾爱林.川中地区须家河组致密砂岩气藏气水分布形成机理.石油与天然气地质, 2014, 35(2):218-223. CHEN T T, JIA A L. Mechanisms of gas-water distribution in tight sandstone gas reservoirs of Xujiahe Formation,central Sichuan Basin. Oil & Gas Geology, 2014, 35(2):218-223.
[12] 李新豫, 曾庆才, 包世海, 等."两步法反演" 技术在致密砂岩气藏预测中的应用:以苏里格气田苏X区块为例. 岩性油气藏, 2013, 25(5):81-85. LI X Y, ZENG Q C, BAO S H, et al. Application of "two step inversion" technology to the prediction of tight sandstone gas reservoir:a case study from Su X block in Sulige Gas Field. Lithologic Reservoirs, 2013, 25(5):81-85.
[13] 黄捍东, 张如伟, 郭迎春.地震信号的小波分频处理.石油天然气学报, 2008, 30(3):87-91. HUANG H D, ZHANG R W, GUO Y C. Wavelet frequency-division process for seismic signals. Journal of Oil and Gas Technology, 2008, 30(3):87-91.
[14] 庞锐, 刘百红, 孙成龙.时频分析技术在地震勘探中的应用综述.岩性油气藏, 2013, 25(3):92-96. PANG R, LIU B H, SUN C L. Review on time-frequency analysis technique and its application in seismic exploration. Lithologic Reservoirs, 2013, 25(3):92-96.
[15] 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 J G, HAN W G, LIU L H. Frequeney-divided inversion and application. Oil Geophysical Prospecting, 2006, 41(2):193-197.
[16] 包世海, 范文芳, 党领群, 等. AVO检测方法在广安气田须六段气层的应用.天然气工业, 2009, 29(9):38-41. BAO S H, FAN W F, DANG L Q, et al. Application of AVO-based prediction in the reservoirs of Xu-6 in Guang'an gas field. Natural Gas Industry, 2009, 29(9):38-41.
[17] 王秀姣, 黄家强, 姜仁, 等. AVO不同含气砂岩的AVO响应类型及其近似式误差分析. 岩性油气藏, 2017, 29(5):120-126. WANG X J, HUANG J Q, JIANG R, et al. AVO response of different types of gas-bearing sandstone and error analysis of approximate formulas. Lithologic Reservoirs, 2017, 29(5):120-126.
[18] 李宁, 苏云, 田军, 等.AVO流体反演技术在川东北某区烃类检测中的应用.岩性油气藏, 2012, 24(5):102-105. LI N, SU Y, TIAN J, et al. Application of AVO fluid inversion technique to hydrocarbon detection in northeastern Sichuan. Lithologic Reservoirs, 2012, 24(5):102-105.
[19] 李新豫, 欧阳永林, 包世海, 等.四川盆地川中地区须家河组气藏地震检测.天然气地球科学, 2016, 27(12):2207-2215. LI X Y, OUYANG Y L, BAO S H, et al. The seismic detection of gas bearing for Xujiahe Formation in the middle of Sichuan Basin. Natural Gas Geoscience, 2016, 27(12):2207-2215.
[20] 欧阳永林, 曾庆才, 郭晓龙, 等.塔中地区鹰山组储层分布规律与地震预测.天然气地球科学, 2015, 26(5):893-903. OUYANG Y L, ZENG Q C, GUO X L, et al. Reservoirs distribution and seismic prediction of the Lower Ordovician Yingshan Formation at the Tazhong area. Natural Gas Geoscience, 2015, 26(5):893-903.
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