摘要
近年来,随着油田勘探开发的深入,规模小,构造幅度低的油气藏所占比例逐年上升,低幅度构造也逐渐受到重视.本文分析了低幅度构造的特点及地震反射特征,结合工区实际情况,提出了在地震资料解释阶段研究低幅度构造的流程和思路,总结了针对低幅度构造的主要识别方法:地震正演模拟、井控提高分辨率处理、层位精细解释、三维速度场分析、构造图倾角校正等.通过以上技术在Carmen油田三维工区识别了12个低幅度构造,结合地质、测井资料综合分析优选了两个钻探目标,取得了较好的勘探效果.
In recent years, with the in-depth of oil field exploration and development, the amaount ratio of small-scale and low amplitude structure reservoirs discovered is climbing and paid more attention gradually. This paper analyzes the seismic reflection characteristics of low-amplitude structure, brings forward the research flow of data interpretation and summarizes the main recognition techniques: seismic forward modeling, well control improving resolution processing; 3-D velocity field analysis; dip logging correct and so on. Through these techniques twelve low-amplitude structures are recognized in the 3-D seismic exploreation in the Carmen field and two drilling objects are optimized baset on the geology and logging information. It received preferable prospect effect.
引文
[1] 张进铎.地震解释技术现状及发展趋势[J].地球物理学进展,2006,21(2) :578-587. Zhang J D. Present status and future trend of seismic data interpretation techniques[J]. Progress in Geophysics,2006,21(1) :578-587.
[2] 王西文.精细地震解释技术在油田开发中后期的应用[J].石油勘探与开发,2004,31(6) :58-61. Wang X W. Technique and application of precise seismic interpretation in the later development stage of oilfields [J]. Petroleum Exploration and Development,2004,31(6) :58-61.
[3] 王庆,贾东,马品刚,等.微幅度构造识别方法及利用浮力开发油田[J].石油勘探与开发,2003,30(1) :65-67. Wang Q, Jia D, Ma P G, et al. Recognition method of micro-relief structares in complicated structural reservoirs and the application of buoyan ce in oilfield development [J]. Petroleum Exploration and Development,2003,30(1) :65-67.
[4] 张风旭,张凤琴,刘财,等.断裂构造精细解释技术-三方向小子域滤波[J].地球物理学报,2007,50(5) :1543-1550. Zhang F X, Zhang F Q, Liu C, et al. A technique for elaborate explanation of faulted structures: three-directional small subdoma in filtering [J]. Chinese Journal of Geophysics, 2007,50(5) :1543-1550.
[5] 李素华,王云专,范兴才,等.模型正演技术在兴城地区叠前深度偏移中的应用[J].地球物理学进展,2008,23(4) :1216-1222. Li S H, Wang Y Z, Fan X C, et al. Application of forward modeling technique pre-stack depth migration in Xingcheng area[J]. Progress in Geophysics,2008,23(4) :1216-1222.
[6] 刘丽峰,杨怀义,蒋多元,等.三维精细构造解释的方法流程和关键技术[J].地球物理学进展,2006,21(3) :864-871. Liu L F, Yang H Y, Jiang D Y,et al. Primary Exploration of 3-D Fine Structure Interpretation[J]. Progress in Geophysics, 2006, 21(3) :: 139-146.
[7] 李文莲,邓辉,闫立志.鄂尔多斯盆地北部低信噪比资料的高分辨率处理[J].地球物理学进展,2005,20(4) :1059-1066. Li W L, Deng H, Yan L Z. A high-resolution procedure of low SNR data for North Ordos basin [J]. Progress in Geophysics,2005, 20(4) :1059-1066.
[8] 王延章,林承焰.低幅度构造油藏研究方法[J].新疆石油地质,2006,27(4) :407-409. Wang Y Z, Lin C Y. Study Methods for Reservoirs with Low Amplitude Structure[J]. Xinjiang Petroleum Geology,2006,27 (4) :407-409.
[9] 徐文梅.低幅度构造成图技术[J].新疆石油地质,2003,24(4) :349-351. Xu W M. Technique for M apping Low-Amplitude Structure [J]. Xinjiang Petroleum Geology,2003,24(4) :349-351.
[10] 刘军迎,雍学善,高建虎,等.波动方程模型正演岩性油气藏波场研究[J].石油物探,2005,44(1) :12-15. Liu J Y, Yong X S, Gao J H, et al. The characteristics of wave field and litological reservoir using wave function forward modeling[J]. Geophysical prospecting for petroleum, 2005,44(1) :12-15.
[11] 陈广军,宋国奇.低幅度构造地震解释探讨[J].石油物探,2003,42(3) :395-398. Chen G J, Song G Q. Discussion on interpretation of low amplitude structures [J]. Geophysical prospecting for petroleum,2003,42(3) :395-398.
[12] 王树华,刘怀山,张云银.变速成图方法及应用研究[J].中国海洋大学学报,2004,34(1) :139-146. Wang S H, Liu H S, Zhang Y Y. Research on Variable- Velocity Structure Mapping and its Application [J]. Journal of Ocean University of China,2004,34(1) :139-146.
[13] 郭栋,韩文功.高分辨率地震资料综合解释技术及其应用[J].勘探地球物理学进展,2004,27(4) :290-296. Guo D, Han W G. Comprehensive interpretation of high-resolution seismic data and application [J]. Progress in Exploration Geophysics,2004 ,27(4) : 290-296.
[14] 王咸彬.全三维储层解释技术及其应用[J].石油物探,2003,42(4) :480-485. Wang X B. Full 3-D reservoir interpretation technique and its application[J]. Geophysical Prospecting for Petroleum, 2003 , 42(4) :480-485.