新疆石油地质

新疆石油地质 ›› 2004, Vol. 25 ›› Issue (4): 436-437.

• 应用技术 • 上一篇    下一篇

应用横波各向异性评价碳酸盐岩裂缝性储集层

张永忠   

  1. 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:2003-12-17 发布日期:2021-01-06
  • 作者简介:张永忠(1968-),男,辽宁朝阳人,工程师,测井解释处理。联系电话:0996-2172191

Application of Shear Wave Anisotropy to Evaluation of Fractured Carbonate Reservoir

ZHANG Yong-zhong   

  1. Research Institute of Exploration and Development, Tarim Oilfield Company, PetroChina, Korla, Xinjiang 841000, China
  • Received:2003-12-17 Published:2021-01-06

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摘要： 在地层中横波各向导性与裂缝的张开度呈正相关,被泥质或方解石充填的裂缝有很强的横波各向异性,应用这一特征可定性地识别裂隙充填程度,评价碳酸盐岩储集层,这一方法在塔里木盆地桑塔木断垒带得到了成功的应用,数口井的横波各向异性结果证实,被泥质充填或方解石充填的高角度裂缝只有微弱的各向异性,水平裂缝、网状裂缝、共轭裂缝几乎没有横波各向异性。这就为在塔里木盆地碳酸盐岩储集层中寻找有利的裂缝系统提供了条件。

关键词: 声波测井, 横波, 各向异性, 裂缝, 碳酸盐岩, 评价

Abstract: Shear wave anisotropy of formation assumes normal correlation with fractures and fracture openings, so there exist intensive shear wave anisotropies in the fractures flled with shale or calcite. To apply this character may recognize qualitatively crack flling extent and evalu-ate carbonate reservoirs. Successful application of this method to Sangtamu horst faulting zones in Tarim basin shows that the high-angle frac-tures flled with shale or calcite appear slight anisotropy, while horizontal fracture, network fracture and conjugated fracture have few the anisotropies. In addition, this study can provide basis for seeking favorable fracture systems in Tarim's carbonate reservoirs.

Key words: acoustic logging, shear wave, anisotropy, fracture, carbonate rock, evaluation

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