西南石油大学学报(自然科学版)

• 地质勘探 • 上一篇    下一篇

多信息融合分级裂缝建模

薛艳梅1,夏东领1,苏宗富2,邬兴威1,汲生珍1   

  1. 薛艳梅1,夏东领1,苏宗富2,邬兴威1,汲生珍1
  • 出版日期:2014-04-01 发布日期:2014-04-01
  • 基金资助:

    中国石油化工股份有限公司重大专项课题“裂缝–孔隙型碳酸盐岩稠油油藏开发关键技术”(2011ZX05031–002)。

Fracture Modeling at Different Scales Based on Convergent
Multi-Source Information

Xue Yanmei1, Xia Dongling1, Su Zongfu2, Wu Xingwei1, Ji Shengzhen1   

  1. Xue Yanmei1, Xia Dongling1, Su Zongfu2, Wu Xingwei1, Ji Shengzhen1
  • Online:2014-04-01 Published:2014-04-01

摘要:

对裂缝型油藏来说,裂缝既是有效的储集空间又是重要的渗流通道,但裂缝发育情况复杂,具有很强的非均
质性,常规的地质建模方法并不适用于裂缝建模。以中东地区某裂缝型碳酸盐岩稠油油藏为例,融合地质、测井、地
震、动态等多种信息,将裂缝分为断裂破碎带、中等级别裂缝和小级别裂缝3 个级别,首次提出确定性建模和随机建模
相结合的方法建立裂缝储集相模型,在其约束下建立各级别缝的发育强度体,最后通过离散裂缝网络(DFN)模拟和参
数场等效,得到各个级别缝的离散裂缝网络模型和裂缝属性模型,探索了一套针对复杂裂缝型储层的多信息融合的分
级裂缝建模方法。

关键词: 碳酸盐岩, 裂缝型储层, 裂缝分级, 裂缝建模, 离散裂缝网络

Abstract:

For the fractured carbonate reservoir,fractures are effective reservoir space and primary channels. But the development
of fractures is complex and the reservoir has strong heterogeneity. The normal geological modeling methods are
not applicable to the fracture modeling. This paper takes X Oilfield in the Middle East Region as an example and establishes
the technology of fracture modeling on a scale of fracture zones,medium-size fractures,and small-size fractures based on
convergent multi-source information including geology,well-logging,seismic,and dynamic data. It is first proposed by the
authors that the fracture reservoir facies model is established on the combination of the deterministic model and stochastic model
method. Under the constraints of facies model,the development intensity bodies at different scale of fractures are established.
Finally,a discrete fracture network(DFN)model and fracture property model are generated by means of DFN modeling and
parameter field equivalence. In general,this paper discusses and studies a set of fracture modeling method converging with
multi-source information on the basis of different scale of fractures for the complex carbonate reservoir.

Key words: carbonate, fractured reservoir, fracture classification, fracture modeling, discrete fracture network