致密砂岩地震预测在水平井轨迹设计中的应用

doi:10.11743/ogg20120612

摘要/Abstract

摘要：

鄂尔多斯盆地大牛地气田二叠系下石盒子组一段(盒一段)属于典型的辫状河道沉积,砂岩较厚,气层分布存在着较强的非均质性,气藏的水平井开发难度较大。为了提高致密砂岩气藏储层"甜点"钻遇成功率,在高分辨率层序地层和沉积体系分析的基础上,明确了盒一段辫状河道沉积相展布规律及沉积特征,提出了综合应用三维地震资料解释、地震波形分析、AVO含气检测及地质统计学反演等地震预测成果设计水平井轨迹的技术方法。其中,AVO负梯度异常和地质统计学反演等地球物理预测技术发挥了特别重要的作用,为大牛地致密砂岩气藏水平井开发提供了技术支持。层序地层理论和有效的地球物理预测方法结合是提高致密砂岩气藏储层"甜点"钻遇成功率的理想途径。

关键词: 地震波形, AVO负梯度, 地质统计学反演, 层序地层学, 水平井, 大牛地气田, 鄂尔多斯盆地

Abstract:

The 1^st member of Permian Xiashihezi Formation (He-1) in Daniudi gas field,Ordos Basin,is braided channel deposits with large thickness.As heterogeneity of the gas layer distribution is strong,development of the gas reservoirs with horizontal wells is difficult.In order to increase the success rate of drilling"sweet spot"in this tight sandstone layer,we studied in detail the sedimentary facies and characteristics of the braided channel deposits in He-1 based on analyses of high resolution sequence stratigraphy and sedimentary system,and presented methods to integrate various seismic data into design of horizontal well trajectory,such as 3D seismic interpretation,waveform analysis,AVO gas detection and geo-statistical inversion.Among these seismic data,negative AVO gradient and geo-statistics inversion are the most important and can provide strong technical support to the development of the tight sand gas reservoirs with horizontal wells in Dajiudi gas field.The integration of sequence stratigraphy theory with geophysical prediction methods is an effective way to improve the success rate of "sweet spot"drilling in tight gas sandstone reservoirs.

Key words: seismic waveform, negative AVO gradient, geo-statistic inversion, sequence stratigraphy, horizontal well, Daniudi gas field, Ordos Basin

中图分类号:

TE122.2

许杰,董宁,朱成宏,等. 致密砂岩地震预测在水平井轨迹设计中的应用[J]. 石油与天然气地质, 2012, 33(6): 909-913. doi: 10.11743/ogg20120612 Xu Jie,Dong Ning,Zhu Chenghong,et al. Application of seismic data to the design of horizontal well trajectory in tight sandstone gas reservoirs[J]. Oil & Gas Geology, 2012, 33(6): 909-913. doi: 10.11743/ogg20120612

参考文献

[1] 孙赞东,贾承造,李相方,等.非常规油气勘探与开发[M].北京:石油工业出版社,2011:407-593. Sun Zandong,Jia Chengzao,Li Xiangfang,et al.Unconventional oil & gas exploration and development[M].BeiJing: Petroleum Industry Press,2011:407-593.
[2] 王代国.鄂尔多斯盆地塔巴庙地区二叠系下石盒子组盒1段砂岩成岩相与储集性能关系[J].地球科学与环境学报,2006,28(1):32-36. Wang Daiguo.Diagenetic facies and reservoir capability of p_x1¹ sandstone in Tabamiao area of Ordos Basin[J].Journal of Earth Sciences and Environment,2006,28(1):32-36.
[3] 孙玉平,陆家亮,巩玉政,等.我国气藏水平井技术应用综述[J].天然气技术与经济,2011,5(1):24-27. Sun Yuping,Lu Jialiang,Gong Yuzheng,et al.Review and suggestion on application of horizontal-well technology to gas reservoirs in China[J].Natural Gas Technology and Economy,2011,5(1):24-27.
[4] 刘迪仁,谢伟彪,殷秋丽.水平井不平整界面地层中感应测井模拟及影响分析[J].石油物探,2012,51(1):86-90,97. Liu Diren,Xie Weibiao,Yin Qiuli. Simulation and analysis on induction logging of the formation with uneven boundary in horizontal well[J].Geophysical Prospecting for Petroleum,2012,51(1):86-90.
[5] 史学东,吴修国,刘俊方.短半径水平井侧钻技术在沙特HRDH-128井中的应用[J].断块油气田,2011,18(5):672-674. Shi Xuedong,Wu Xiuguo,Liu Junfang. Application of short radius horizontal sidetracking technology in Well HRDH-128 of Saudi Arabia[J]. Fault-Block Oil & Gas Field,2011,18(5):672-674.
[6] 肖晖,吴小斌,何丹,等.鄂尔多斯盆地镇川地区长3低渗储层特征及其控制因素[J].断块油气田,2011,18(6):701-704. Xiao Hui,Wu Xiaobin,He Dan,et al.Characteristics and control factors of Chang 3 reservoir with low permeability in Zhenchuan Area, Ordos Basin[J].Fault-Block Oil & Gas Field,2011,18(6):701-704.
[7] 彭才,张延充,梅燕,等.川中地区飞仙关组高能鲕滩储层地震预测 [J].石油物探,2010,49(5):504-508. Peng Cai,Zhang Yanchong,Mei Yan,et al.Seismic prediction on high-energy oolitic-beach reservoir of Feixianguan Formation in central Sichuan Basin[J].Geophysical Prospecting for Petroleum,2010,49(5) :504-508.
[8] 刘建生,邓传伟.宁晋断裂陡坡带近岸水下扇体储层的地震预测[J].石油物探,2010,49(4):380-383. Liu Jiansheng,Deng Chuanwei. Seismic prediction of near-shore underwater fan reservoir in Ningjin fractured steep slope belt[J].Geophysical Prospecting for Petroleum,2010,49(4):380-383.
[9] 李明,侯连华,邹才能,等.岩性地层油气藏地球物理勘探技术与应用[M].北京:石油工业出版社,2005:74-93. Li Ming,Hou Lianhua,Zou Caineng,et al.Technology and application of geophysical exploration in lithostratigraphic reservoir[M].BeiJing:Petroleum Industry Press,2005:74-93.
[10] 吴因业,邹才能,胡素云,等.全球前陆盆地层序沉积学新进展[J].石油与天然气地质,2011,32(4):606-614. Wu Yinye,Zou Caineng,Hu Suyun,et al.New advances in sedimentology and sequence stratigraphy of foreland basin[J].Oil & Gas Geology,2011,32(4):606-614.
[11] 朱筱敏,董艳蕾,胡廷惠,等.精细层序地层格架与地震沉积学研究——以泌阳凹陷核桃园组为例[J].石油与天然气地质,2011,32(4):615-624. Zhu Xiaomin,Dong Yanlei,Hu Tinghui,et al.Seismic sedimentology study of fine sequence stratigraphic framework:a case study of the Hetaoyuan Formation in the Biyang Sag[J].Oil & Gas Geology,2011,32(4):615-624.
[12] 秦雁群,邓宏文,侯秀林,等.海拉尔盆地乌尔逊凹陷北部高分辨率层序地层与储层预测[J].石油与天然气地质,2011,32(2):214-221,228. Qin Yanqun,Deng Hongwen,Hou Xiulin,et al.High resolution sequence stratigraphy and reservoir prediction of northern Wuerxun Sag,the Hailar Basin[J].Oil & Gas Geology,2009,30(2):214-221,228.
[13] 许杰,董宁,宁俊瑞,等.鄂尔多斯盆地大牛地气田盒3段辫状河道沉积相预测[J].岩性油气藏,2011,23(2):90-94. Xu Jie,Dong Ning,Ning Junrui,et al.Sedimentary facies prediction of braided channel of the third member of Shihezi Formation in Daniudi gasfield,Ordos Basin[J].Lithologic Reservoirs,2011,23(2):90-94.
[14] 李宗杰.塔河油田碳酸盐岩油藏水平井部署方法[J].石油物探,2003,42(4):478-479. Li Zongjie.Methods of disposing horizontal wells in carbonate reservoir in Tahe Oilfield[J].Geophysical Prospecting for Petroleum,2003,42(4):478-479.

[1]	吴伟涛, 冯炎松, 费世祥, 王一妃, 吴和源, 杨旭东. 鄂尔多斯盆地神木气田二叠系石千峰组5段致密气富集因素及有利区预测[J]. 石油与天然气地质, 2024, 45(3): 739-751.
[2]	刘成林, 丁振刚, 范立勇, 康锐, 洪思婕, 朱玉新, 陈践发, 王海东, 许诺. 鄂尔多斯盆地含氦天然气地球化学特征与富集影响因素[J]. 石油与天然气地质, 2024, 45(2): 384-392.
[3]	万俊雨, 朱建辉, 姚素平, 张毅, 李春堂, 张威, 姜海健, 王杰. 鄂尔多斯盆地中、东部奥陶系马家沟组成烃生物及烃源岩地球生物学评价[J]. 石油与天然气地质, 2024, 45(2): 393-405.
[4]	杨丽华, 刘池洋, 黄雷, 周义军, 刘永涛, 秦阳. 鄂尔多斯盆地古峰庄地区疑似侵入岩体的发现及其地质意义[J]. 石油与天然气地质, 2024, 45(1): 142-156.
[5]	师良, 范柏江, 李忠厚, 余紫巍, 蔺子瑾, 戴欣洋. 鄂尔多斯盆地中部三叠系延长组7段烃组分的运移分异作用[J]. 石油与天然气地质, 2024, 45(1): 157-168.
[6]	曹江骏, 王继平, 张道锋, 王龙, 李笑天, 李娅, 张园园, 夏辉, 于占海. 深层致密砂岩储层成岩演化对含气性的影响[J]. 石油与天然气地质, 2024, 45(1): 169-184.
[7]	胡宗全, 王濡岳, 路菁, 冯动军, 刘粤蛟, 申宝剑, 刘忠宝, 王冠平, 何建华. 陆相页岩及其夹层储集特征对比与差异演化模式[J]. 石油与天然气地质, 2023, 44(6): 1393-1404.
[8]	刘成林, 丁振刚, 陈践发, 范立勇, 康锐, 王海东, 洪思婕, 田安琦, 陈学勇. 鄂尔多斯盆地氦源岩特征及生氦潜力[J]. 石油与天然气地质, 2023, 44(6): 1546-1554.
[9]	李勇, 朱治同, 吴鹏, 申陈州, 高计县. 鄂尔多斯盆地东缘上古生界致密储层含气系统压力演化[J]. 石油与天然气地质, 2023, 44(6): 1568-1581.
[10]	曾溅辉, 张亚雄, 张在振, 乔俊程, 王茂云, 陈冬霞, 姚泾利, 丁景辰, 熊亮, 刘亚洲, 赵伟波, 任克博. 致密砂岩气藏复杂气-水关系形成和分布主控因素及分布模式[J]. 石油与天然气地质, 2023, 44(5): 1067-1083.
[11]	梁岳立, 赵晓明, 张喜, 李树新, 葛家旺, 聂志宏, 张廷山, 祝海华. 轨道周期约束下海-陆过渡相页岩层系高精度层序界面识别及其地质意义[J]. 石油与天然气地质, 2023, 44(5): 1231-1242.
[12]	李涵, 付金华, 季汉成, 张雷, 佘钰蔚, 官伟, 井向辉, 王红伟, 曹茜, 刘刚, 魏嘉怡. 鄂尔多斯盆地西南部上古生界风化壳型铝土岩系发育过程及优势储层分布规律[J]. 石油与天然气地质, 2023, 44(5): 1243-1255.
[13]	李晓, 郭鹏, 胡彦智, 李士祥, 杨伟伟. 陆相页岩压裂试验与数值模拟[J]. 石油与天然气地质, 2023, 44(4): 1009-1019.
[14]	高嘉洪, 金之钧, 梁新平, 李士祥, 杨伟伟, 朱如凯, 杜晓宇, 刘全有, 李彤, 董琳, 李鹏, 张旺. 火山活动对鄂尔多斯盆地三叠系长7段淡水湖盆富营养化与沉积水体介质环境的影响[J]. 石油与天然气地质, 2023, 44(4): 887-898.
[15]	王梓毅, 付金华, 刘显阳, 李士祥, 张昌虎, 梁新平, 董琳. 鄂尔多斯盆地上三叠统延长组7段埋藏期热液活动对页岩油储层的影响[J]. 石油与天然气地质, 2023, 44(4): 899-909.