西南石油大学学报(自然科学版)

• 地质勘探 • 上一篇    下一篇

复杂断块油田开发后期精细地质建模技术对策

邹拓1 *,徐芳2   

  1. 1. 中国石油大港油田公司勘探开发研究院,天津大港300280
    2. 中国石油勘探开发研究院,北京海淀100083
  • 出版日期:2015-08-01 发布日期:2015-08-01
  • 通讯作者: 邹拓,E-mail:Jeffchou6@163.com
  • 基金资助:

    中国石油天然气股份有限公司重大科技专项(2014E 0601)。

Technical Strategy for Fine Geological Modeling in Later Development Stage of Complex Fault-block Oilfield

Zou Tuo1*, Xu Fang2   

  1. 1. Exploration and Development Research Institute,Dagang Oilfield Company,CNPC,Dagang,Tianjin 300280,China
    2. Research Institute of Petroleum Exploration and Development,CNPC,Haidian,Beijing 100083,China
  • Online:2015-08-01 Published:2015-08-01

摘要:

针对开发后期复杂断块老油田二次开发挖潜剩余油,需要准确认识储层三维空间分布、精细预测储层属性参
数,展开了精细地质建模技术研究。采用逐级控制、分步建模方法,有效地解决了复杂断块断层多、配置关系复杂、单
砂层层多且薄的构造建模难题。利用SKUA 软件地质网格系统,避免建模网格变形、坍塌及不稳定性等问题。同时,
采取多条件控制、嵌套约束模拟属性建模方法,保证物性模拟参数优相关性,借助GPU 加速、多核并行运算等技术手
段,重点单砂层重点剖析的方法,建立30.0 m×30.0 m×0.5 m 精度模型,准确表征储层的非均质性。将上述技术对策用
于港西油田五区二三维地质建模中,实现了储层精细三维可视化,提高了储层参数预测精度,为后续精细油藏数值模
拟预测剩余油提供科学、可靠的地质模型。

关键词: 复杂断块, 建模对策, 地质网格系统, 精细模型, 港西油田

Abstract:

To produce the remaining oil in the late secondary development of complex fault block old oilfields,we need an
accurate understanding of three-dimensional spatial distribution of reservoir,fine prediction of property parameters of reservoir,
therefore the study on fine geological modeling techniques is carried out. The step controlling and modeling approach
effectively solves structure modeling difficulties on many complex multi-block faults,complicated configuration relationships,
and many thin multi-layers of sand. SKUA′s geological grid system is used to avoid modeling mesh deformation,collapse and
instability etc. Meanwhile multi-conditional control and nested constraint property modeling are taken to ensure excellent correlation
between physical parameters. And a model with 30.0 m×30.0 m×0.5 m is established to accurately represent reservoir
heterogeneity based on GPU acceleration,multi-core parallel computing techniques,and particular attention is focused on key
single sand layers analysis. This paper takes fault two of Area V in Gangxi Oilfield as an example,and the above technical
strategies are used for three-dimensional geological modeling in the area to achieve a fine three-dimensional visualization of
reservoir,and improve the prediction accuracy of reservoir parameters. It provides a scientific and reliable geological model
for the subsequent fine numerical simulation in predicting residual oil.

Key words: complex fault-block, modeling strategies, geological grid system, refined model, Gangxi Oilfield