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物探与化探  2020, Vol. 44 Issue (5): 1201-1207    DOI: 10.11720/wtyht.2020.1378
  方法研究·信息处理·仪器研制 本期目录 | 过刊浏览 | 高级检索 |
利用曲率类属性预测储层裂缝的流程及应用实例
陈志刚1(), 马文杰2, 赵宏忠1, 许凤1, 崔全章1, 马辉1, 孙星1
1.东方地球物理公司研究院地质研究中心,河北 涿州 072751
2.中国石油国际勘探开发有限公司,北京 100034
A technical workflow of fracture prediction with curvature-related attributes and its applications
CHEN Zhi-Gang1(), MA Wen-Jie2, ZHAO Hong-Zhong1, XU Feng1, CUI Quan-Zhang1, MA Hui1, SUN Xing1
1.BGP Geological Research Center,Zhuozhou 072751,China
2.China National Oil and Gas Exploration and Development Corporation(CNODC),Beijing 100034,China
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摘要 

基于曲率类属性,本文提出预测“裂缝发育带—裂缝发育方向—开启裂缝”的一套流程,首先对地震数据体进行曲率运算预测裂缝型储层发育带;然后对曲率数据体计算玫瑰图属性,用成像测井的玫瑰图与曲率体计算的玫瑰图进行比对,从而确定裂缝的发育方向;根据裂缝发育方向优选2个主要裂缝发育的主方向,然后根据裂缝发育的主方向对曲率数据体计算2个主方向方位强度属性;将2个方位强度属性分别与产能交会,其中相关性较好的方位为裂缝的开启方位。上述方法在哈萨克K油田应用,预测了K油田区东部地区为缝洞型储层发育带,西部地区为裂缝型储层发育带;主要发育NE向和NW向两组裂缝,其中NE向裂缝北部地区开启性好,NW向裂缝南部地区开启性好;根据预测结果,提出的2口钻井获得了商业油流。

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陈志刚
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崔全章
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孙星
关键词 裂缝型储层各向异性曲率方位强度玫瑰图    
Abstract

Based on the curvature attribute,this paper proposes for the first time a set of processes for predicting "fracture zones-fracture development direction-fracture initiation".Firstly,the curvature calculation of the seismic data is carried out to predict the developing area of the fractured reservoir;then,the rose diagrams of the curvature data are calculated and compared with the rose diagrams from the log data to determine the direction of fracture;two dominant directions of fracture development are selected according to the directions of fracture development,and then the intensity properties of the two dominant directions of the curvature volume are calculated according to the main directions of fracture development;finally,the two azimuth intensity attributes are intersected with productivity respectively,and the one with the better correlation is the opening azimuth of the fractures.The above method was applied to K oilfield in Kazakh.The authors made the prediction that the fracture-vug reservoir is mainly developed in the eastern part of K oilfield,while the fracture reservoir is mainly developed in the western part,and that there are mainly two groups of fractures developed in the NW and the NW direction,of which the opening property of the NE trend fractures is good in the north part,while the opening property of the NW trend fractures is good in the south part.According to the prediction results,commercial oil flow was detected in the two proposed wells.

Key wordsfractured reservoir    anisotropy    curvature    azimuth intensity    rose diagram
收稿日期: 2019-08-12      出版日期: 2020-10-26
:  P631.4  
基金资助:国家科技重大专项(2016ZX05029005);中石油集团重大科技专项(2019D-4307)
作者简介: 陈志刚(1978-),男,河北沧州人,2000年毕业于石油大学(华东)应用地球物理专业,2017年毕业于中国地质大学(北京),获博士学位,高级工程师,从事地震地质综合研究工作。 Email: chenzhigang@cnpc.com.cn
引用本文:   
陈志刚, 马文杰, 赵宏忠, 许凤, 崔全章, 马辉, 孙星. 利用曲率类属性预测储层裂缝的流程及应用实例[J]. 物探与化探, 2020, 44(5): 1201-1207.
CHEN Zhi-Gang, MA Wen-Jie, ZHAO Hong-Zhong, XU Feng, CUI Quan-Zhang, MA Hui, SUN Xing. A technical workflow of fracture prediction with curvature-related attributes and its applications. Geophysical and Geochemical Exploration, 2020, 44(5): 1201-1207.
链接本文:  
https://www.wutanyuhuatan.com/CN/10.11720/wtyht.2020.1378      或      https://www.wutanyuhuatan.com/CN/Y2020/V44/I5/1201
Fig.1  裂缝预测流程
Fig.2  工区构造图、产液量分布图及地震剖面
a—研究区构造图;b—研究区产液量分布;c—图a蓝色线所示地震剖面
Fig.3  裂缝预测结果
a—潜山顶面曲率体沿层切片;b—波阻抗属性预测缝洞储层厚度;c—图a蓝色线所示地震剖面
Fig.4  地震预测玫瑰图(a)及成像测井玫瑰图(b)
Fig.5  方位强度属性预测裂缝开启性结果
a—NE向方位强度属性;b—NW向方位强度属性;c—NE向和NW向方位强度融合属性;d—融合方位强度属性与产液量交会;e—融合方位强度属性剖面
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