• • 上一篇    下一篇

锦州南油田潜山裂缝储层地震预测技术研究

明 君 夏庆龙 周东红 王建立   

  1. 中海石油(中国)有限公司天津分公司,天津300452
  • 出版日期:2014-02-15 发布日期:2014-02-15
  • 作者简介:明君,男,1994 年毕业于西南石油学院,长期从事海上油田地球物理科研工作。E-mail:mingjun@cnooc.com.cn

Study of Seismic Prediction Technology for Buried Hill Fractured Reservoir of Jinzhounan Oilfield

Ming Jun, Xia Qinglong, Zhou Donghong, Wang Jianli   

  1. CNOOC (China) Limited Tianjin Company, Tianjin 300452
  • Online:2014-02-15 Published:2014-02-15

摘要: 锦州南油田的主要开发层系为太古宇潜山,裂缝储层预测准确性直接影响潜山油藏的开发效果。为了实 现裂缝储层的准确预测,重点开展了基于海上窄方位角地震采集方式下中高角度裂缝的地震预测技术和方法研究,结 合研究区域地质及构造特征,深入研究了窄方位角采集方式下裂缝发育程度与地震响应特征的定量关系,进而开展了 对纵波方位各向异性裂缝预测技术、远近偏移距地震差异裂缝预测技术、叠前应力场裂缝预测技术的适用性分析及预 测研究,最后对3 种方法预测成果进行多信息融合处理,实现了对潜山裂缝储层多方法综合预测,降低了单一方法预 测的多解性,准确预测了潜山裂缝储层的发育特征,开发井证实预测吻合程度在80% 以上,为油田下一步勘探开发 提供依据,同时总结出一套适用于海上地震资料的裂缝预测技术序列。

Abstract: The main series of strata of Jinzhounan Oilfield is the Archean buried hill. The accuracy of fractured reservoir prediction is directly related to development of buried hill oil reservoir. To bring about accurate prediction of fractured reservoir, the efforts were focused on seismic prediction technology and study method of medium- and high-angle fractures in the pattern of offshore narrow azimuth angle seismic acquisition. With combination of geological and structural characteristics of the study zone, the in-depth study was made on the quantitative relations between fracture development degree and seismic response features in the pattern of narrow azimuth angle acquisition. Based on those efforts, the vertical wave azimuth anisotropy fracture prediction technology, far and near offset distance seismic anisotropy fracture prediction and pre-stack stress field fracture prediction technology were brought under application analysis and study. Finally, a magnitude of information was used to merge and process the results of three prediction methods, thus making comprehensive prediction of buried hill fractured reservoir on the basis of various methods. With the multi-solution possibility for single-method prediction reduced, the development well confirmed that the conformity of prediction exceeded 80 percent, providing the data for exploration and development of the oilfield in the next stage. Meanwhile, a set of fracture prediction technology series was summarized for adoption of offshore seismic data.