天然气地球科学

• 天然气勘探 • 上一篇    下一篇

地震反演、地质协同约束储层精细建模研究

陈更新1,2,赵凡2,曹正林2,郑红军2,王爱萍2,胡云鹏3   

  1. 1.中国地质大学能源学院,北京 100083; 2.中国石油天然气集团公司油藏描述重点实验室,甘肃 兰州730020; 3.中国石油勘探开发研究院,北京 100083
  • 收稿日期:2014-03-24 修回日期:2014-07-22 出版日期:2014-11-10 发布日期:2014-11-10
  • 作者简介:陈更新(1984-),男,山东菏泽人,工程师,博士研究生,主要从事油藏描述及数值模拟研究.E-mail:chen_gx@petrochina.com.cn.
  • 基金资助:
    国家重大科技专项 “中国大型气田形成条件、富集规律及目标评价”(编号:2011ZX05007-006)资助.

Integrated Reservoir  Modeling Based on Seismic Inversion and Geological Data

CHEN Geng-xin1,2,ZHAO Fan2,CAO Zheng-lin2,ZHENG Hong-jun2,WANG Ai-ping2,HU Yun-peng3   

  1. 1.School of energy resources ,China University of Geoscience,Beijing 100083; 2.Key Laboratory of Reservoir Desciption of CNPC,Lanzhou 730020,China; 3.Research Institute of Petroleum Exploration & Development,Beijing 100083,China
  • Received:2014-03-24 Revised:2014-07-22 Online:2014-11-10 Published:2014-11-10

摘要: 针对强非均质油藏,需要综合运用多尺度信息来进行精细描述,以提高井间及外围预测模型的精度和确定性。以红柳泉地区E13油藏为例,分别探讨了单纯变差函数、相控、地震属性体约束建模的优、缺点,确定了多信息协同约束综合建模的研究思路。以测井相为井点数据,以反演砂体厚度图为平面约束,刻画沉积微相的平面展布|同时以测井解释数据为硬数据,采用沉积微相控制、地震反演协同体约束建立储层的泥质含量模型,进一步利用阈值离散化得到岩相模型。多信息协同约束综合建模利用了地震资料横向连续性好,测井资料纵向分辨率高,沉积微相反映地质沉积规律等优点,弥补了变差函数多解性强、地震数据纵向分辨率低、井间预测对数据密度要求苛刻、相控模拟沉积模式化严重等缺陷,在实际应用中取得了较好的预测效果,可作为解决储层表征难题的重要策略。

关键词: 多信息约束, 反演属性体, 沉积微相, 相控建模

Abstract: Aiming at the fine reservoir characterization of strong non-homogeneity,multi-scale information should be integrated to improve the model's accuracy and certainty of inter-well and periphery.Taking Hongliuquan oilfield as an example,we explored merits and drawbacks of variation function analytic,sedimentary microfacies-controlled and seismic attribute body constraint modeling and determined research approach of multi-information integrated modeling.With the constraints of sandstone thickness by seismic inversion,the microfacies planar distribution is characterized by using electro-facies as well point data.Based on well-logging,we built the V-shale model with sedimentary microfacies and seismic inversion collaborative constrain,and then discretized it into lithofacies model by a threshold.This method took advantages of seismic data with lateral continuity,well logging data with high vertical resolution,geological depositional patterns of microfacies etc.,and made up the disadvantage of the inter-well multi-solution by variogram function,low vertical resolution of seismic data,the demanding data density in inter-well prediction,patternized sedimentary model.Good prediction effect is obtained in practical application.So this research can be used as an important strategy for reservoir description.

Key words: Multi-information controlled, Inversion attributes, Micro-facies, Facies-controlled modeling

中图分类号: 

  • TE132.1

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