油气勘探中“两宽一高”技术问题的探讨与应用

摘要/Abstract

摘要： ^“两宽一高^”（宽频带、宽方位、高密度）是高精度地震勘探一体化技术，从野外采集、数据处理到资料解释应有配套的方法理念和技术流程。阐述了^“两宽一高^”（的基本定义和技术指标，通过理论记录与合成记录从分辨率、保真度、反演精度等方面说明该项技术的优势：适用于薄互层发育区的油藏描述、各向异性发育区的裂缝预测、深层目标勘探和特殊岩性体的勘探，也是改善复杂区构造成像的有效手段。3 个地区的应用实例展示了^“两宽一高^” 技术在复杂油气藏勘探评价和开发中的作用，即有效提升地震资料的品质，使之能够细致地描述复杂储层的形态和流体分布，提高信息的保真度。

关键词: 倍频程, 两宽一高, 保真度, 分辨率, 波阻抗反演, 储层描述, 油藏评价

Abstract: The ^“2W1H^”(wide-band, wide azimuth and high-density) technique, a high-precision integration seismic exploration technology, presents requirements for matching theoretical concepts and technical processes from field data acquisition to data processing and interpretation. This paper provides basic definitions and technical specifications for the ^“2W1H^”technique, and points out its superior advantages in resolution, fidelity and inversion accuracy based on theoretical records and synthetic records. The technique can be used for description of reservoirs in areas with well-developed thin interbeds, prediction of fractures in areas with high anisotropy, and exploration of deeper targets or formations with special lithologic features. In addition, the technique may be used to enhance quality of structural mapping for formations with complicated structures. Application of the technique in 3 areas proved its importance in exploration, appraisal and development of complex oil/gas reservoirs. By enhancing quality of seismic data, the technique can effectively reflect configurations of complex reservoirs and distribution of fluids therein, so as to promote fidelity of the data.

中图分类号:

王学军　于宝利　赵小辉　蔡希玲　李　虹　方　勇　刘玉莲. 油气勘探中“两宽一高”技术问题的探讨与应用[J]. 中国石油勘探, 2015, 20(5): 41-53.

Wang Xuejun, Yu Baoli, Zhao Xiaohui, Cai Xiling, Li Hong, Fang Yong, Liu Yulian. Development and Application of ^“ 2W1H^” Technique in Oil and Gas Exploration[J]. China Petroleum Exploration, 2015, 20(5): 41-53.

参考文献

[1] 杜金虎,赵邦六,王喜双,等.中国石油物探技术攻关成效及成功做法[J].中国石油勘探, 2011,16(5-6):1-7. Du Jinhu, Zhao Bangliu, Wang Xishuang, et al. Achievements and successful experience of PetroChina in geophysical research[J]. China Petroleum Exploration, 2011,16(5-6):1-7.
[2] 汪恩华，赵邦六，王喜双，等.中国石油可控震源高效地震采集技术应用与展望[J].中国石油勘探，2013,18(5):24-34. Wang Enhua, Zhao Bangliu, Wang Xishuang, et al. Application and outlook of vibroseis acquisition techniques with high efficiency of CNPC[J]. China Petroleum Exploration, 2013,18(5):24-34.
[3] 王喜双，赵邦六，董世泰，等. 面向叠前成像与储层预测的地震采集关键参数综述[J]. 中国石油勘探，2014,19(2):33-38. Wang Xishuang, Zhao Bangliu, Dong Shitai, et al. Key parameters of seismic acquisition for surface pre-stack imaging and reservoir prediction[J]. China Petroleum Exploration, 2014,19(2):33-38.
[4] 王志亮，周滨，龚旭东，等.高密度高分辨地震勘探技术在渤海PL地区的应用[J].中国石油勘探，2013,18(2):37-44 . Wang Zhiliang, Zhou Bin, Gong Xudong, et al. Application of high-density and high-resolution seismic exploration technology for PL zone in Bohai Sea[J]. China Petroleum Exploration, 2013,18(2):37-44.
[5] 何海清,李建忠.中国石油“十一五”以来油气勘探成果、地质新认识与技术进展[J].中国石油勘探，2014,19(6):1-13. He Haiqing, Li Jianzhong. PetroChina^’s oil and gas exploration results, new geological theories and technological achievements since 11th Five-Year Plan Period[J]. China Petroleum Exploration, 2014,19(6):1-13.
[6] 王学军,蔡加铭,魏小东.油气勘探领域地球物理技术现状及其发展趋势[J]. 中国石油勘探，2014,19(4):30-42. Wang Xuejun, Cai Jiaming, Wei Xiaodong.The current status and development trend of geophysical technology for oil and gas exploration[J]. China Petroleum Exploration, 2014,19(4):30-42.
[7] 南京大学和中国科学院声学研究所.GB/T 3241—1998 倍频程和分数倍频程滤波器[S]. 北京：中国标准出版社，1998. Nanjing University and Institute of Acoustics,Chinese Academy of Sciences. GB/T 3241—1998 Octave band and fractional octave band filters[S]. Beijing: Standards Press of China，1998.
[8] 凌云研究组.宽方位角地震勘探应用研究[J].石油地球物理勘探，2003,38(4):350-357. Ling Yun Study Group，Application and study on wide-azimuth seismic exploration[J]. Oil Geophysical Prospecting，2003,38(4):350-357.
[9]钱绍瑚，刘来祥.零相位子波的垂向分辨率[J].石油物探，1988,27(2):1-9. Qian Shaohu, Liu Laixiang. Vertical resolution of zero-phase wavelets[J]. Geophysical Prospecting for Petroleum，1988,27(2):1-9.
[10] Wedess M B. How thin is a thin bed?[J]. Geophysics, 1973,38(6):1766-1180.
[11] Wedess M B. Generalized resolving power and system optimization[C]. Presented at the SEG 50th Annual International SEG Meeting. November 19, 1980,in Houston.
[12] Kallweit R S, Wood L C. The limits of resolution of zero-phase wavelets[J]. Geophysics，1982,47(7):1035-1047.
[13] 王华忠，冯波，王雄文，等.地震波反演成像方法与核心技术[J].石油物探，2015,54(2):115-125. Wang Huazhong,Feng Bo，Wang Xiongwen，et al. Analysis of seismic inversion imaging and its technical core issues [J]. Geophysical Prospecting for Petroleum，2015,54(2):115-125.
[14] 王大兴,张盟勃.全数字地震叠前储层预测技术及应用效果[J].中国石油勘探,2013,18(1):44-48. Wang Daxing, Zhang Mengbo. Full digital seismic prestack reservoir prediction technology and its application results[J].China Petroleum Exploration, 2013,18(1):44-48.
[15] Xuejun Wang, Wei Zhang, Hongtao Chen, et al. Low frequency seismic technology: a new era for reservoir solutions[J]. AAPG Datapages/Search and Discovery Article，2015，Annual Convention and Exhibition, in Denver.
[16] 袁胜辉,唐传章,葛黛薇,等.冀中坳陷深潜山及其内幕地震勘探技术研究[J].中国石油勘探,2013,18(1):39-43. Yuan Shenghui, Tang Chuanzhang, Ge Daiwei, et al. Study of seismic exploration technology for deep buried hills and their inner curtains of Jizhong depression[J]. China Petroleum Exploration, 2013,18(1):39-43.
[17] 佘德平,等.应用低频信号提高高速屏蔽层的成像质量[J].石油地球物理勘探，2007,42(5):564-567. She Deping, et al. Applying of low-frequency signal to improve imaging quality below shielding high-velocity basalt[J]. Oil Geophysical Prospecting，2007,42(5):564-567.
[18] 段文胜，李飞，王彦春，等. 面向宽方位地震处理的炮检距向量片[J].石油地球物理勘探，2013，48(2):206-213. Duan Wensheng,Li Fei,Wang Yanchun，et al. Offset vector tile for wide-azimuth seismic processing[J]. Oil Geophysical Prospecting，2013,48(2):206-213.
[19] Schoenberg M A, Sayers D S. Azimuth-dependent tuning of seismic waves reflected from fractured reservoirs[J]. Geophysics, 1999,64(4):1160-1171.
[20] Williams M, et al. Interpreting seismic data in the presence of azimuthal anisotropy or azimuthal anisotropy in the presence of the seismic interpretation[J]. The leading Edge, 2002,21(8):771-774.
[21] Andreas Cordsen, Mike Galbraith. Narrow-versus wide-azimuth land 3D seismic surveys[J]. The leading Edge, 2002,21(8):764-770.
[22] 王喜双,赵邦六,董世泰,等.油气工业地震勘探大数据面临的挑战及对策[J]. 中国石油勘探，2014,19(4):43-47. Wang Xishuang, Zhao Bangliu, Dong Shitai, et al. Challenges and strategies for large seismic exploration data of oil and gas industry[J].China Petroleum Exploration, 2014,19(4):43-47.
[23] 陈敬国，王成河，白旭明,等.三维观测系统属性定量评价方法探讨[J].中国石油勘探，2015,20(2):68-74. Chen?Jingguo, Wang Chenghe，Bai Xuming，et al. Quantitative evaluation method of 3D geometry attributes[J]. China Petroleum Exploration, 2015,20(2):68-74.
[24] 凌云，等.宽/窄方位角勘探实例分析与评价(一)[J].石油地球物理勘探，2005,40(3):305-308. Ling Yun，et al. Analysis and appreciation of wide/narrow azimuth exploration cases(Ⅰ)[J]. Oil Geophysical Prospecting，2005,40(3):305-308.
[25] 凌云，等.宽/窄方位角勘探实例分析与评价（二）[J].石油地球物理勘探，2005,40(4):423-427. Ling Yun，et al. Analysis and appreciation of wide/narrow azimuth exploration cases(II)[J]. Oil Geophysical Prospecting，2005,40(4):423-427.
[26] 叶秋焱，王彦仓,等. 宽频激发技术在苏里格地区采集中的应用[J].中国石油勘探，2010,15(2):74-77. Ye Qiuya1, Wang Yancang, et al. Application of broadband excitation to seismic data acquisition in Sulige area[J]. China Petroleum Exploration，2010,15(2):74-77.
[27] Tarig Alkhaliaf. Imaging the depth: a practical approach to handling anisotropy in the context of prestack migration velocity analysis[J]. First Break, 2005,23(4):41-47.
[28] 王乃建，梁向豪,等.宽方位三维给塔里木油气勘探带来的启迪[J].石油科技论坛，2012,31(2):21-26. Wang Naijian, Liang Xianghao, et al. Inspiration of wide-azimuth 3D to oil and gas exploration in Tarim[J]. Oil Forum，2012,31(2):21-26.
[29] 易维启,董世泰,曾忠,等.地震勘探技术性与经济性策略考量[J].中国石油勘探，2013,18(4):19-25. Yi Weiqi, Dong Shitai, Zeng Zhong, et al. Consideration of technical and economic strategy for seismic exploration[J].China Petroleum Exploration, 2013,18(4):19-25.