新疆石油地质

新疆石油地质 ›› 2010, Vol. 31 ›› Issue (1): 44-46.

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塔中地区碳酸盐岩洞穴型储集层波动方程正演模拟

孙东1, 张虎权1, 潘文庆2, 王宏斌1, 韩剑发2, 滕团余1, 敬兵2, 王振卿1   

  1. 1.中国石油 勘探开发研究院 西北分院,兰州 730020;
    2.中国石油 塔里木油田分公司 勘探开发研究院,新疆 库尔勒 841000
  • 收稿日期:2009-07-30 发布日期:2020-07-27
  • 作者简介:孙东(1977-),男,辽宁瓦房店人,工程师,硕士,古生物学与地层学,(Tel)0931-8686613(E-mail)sund4175@sina.com.

Wave Equation Forward Modeling of Carbonate Cave Reservoir in Tazhong Area, Tarim Basin

SUN Dong1, ZHANG Hu-quan1, PAN Wen-qing2, WANG Hong-bin1, HAN Jian-fa2, TENG Tuan-yu1, JING Bing2, WANG Zhen-qing1   

  1. 1. Northwest Branch, Research Institute of Petroleum Exploration and Development, PetroChina, Lanzhou, Gansu 730020, China;
    2. Research Institute of Exploration and Development, Tarim Oilfield Company, PetroChina, Korla, Xinjiang 841000, China
  • Received:2009-07-30 Published:2020-07-27

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摘要： 采用有限差分法求解波动方程,研究了塔中地区碳酸盐岩洞穴型储集层溶洞与串珠状反射的位置对应关系、溶洞顶底调谐距离、多种串珠形态的成因机制。结果表明,溶洞位于串珠状反射的中心,溶洞顶界位于波谷,溶洞底界位于波峰处,随其高度增大而下移;塔中深层碳酸盐岩溶洞顶、底反射调谐距离为120m左右;上翘、下拉式串珠是由于偏移孔径、偏移速度过大或过小而造成。这些认识对碳酸盐岩洞穴型油气藏的勘探开发具有一定借鉴作用。

关键词: 塔里木盆地, 碳酸盐岩, 储集层, 串珠状反射, 波动方程, 正演模拟

Abstract: This paper solves the wave equations by means of finite-difference method and studies the carbonate cave reservoir in Tazhong area, the corresponding position relations between the cave and the string bead-like reflectance, the tuning phenomenon between the top and bottom of the cave and the genetic mechanism of various string bead-like forms. The results indicate that the cave locates in the central position of string bead-like reflectance; the top of cave locates in wave trough, the bottom of it located in the wave peak shifts down with its height; the demarcation line of tuning phenomenon of the top-bottom reflectance is about 120 m; the various string bead-like forms is resulted from unsuitable migration aperture and migration velocity. The recognition can be instructive for exploration and development of carbonate cave- fractured reservoirs.

Key words: Tarim basin, carbonate reservoir, string bead-like reflectance, wave equation, forward modeling

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