计算机工程 ›› 2019, Vol. 45 ›› Issue (8): 300-308.doi: 10.19678/j.issn.1000-3428.0051617

• 开发研究与工程应用 • 上一篇    下一篇

数字油田地上下三维集成建模系统研究

王海起1, 费涛1, 彭佳琦1, 李谊让1, 龚蔚青2   

  1. 1. 中国石油大学 地球科学与技术学院, 山东 青岛 266580;
    2. 中国石化石油勘探开发研究院, 北京 100083
  • 收稿日期:2018-05-22 修回日期:2018-06-28 出版日期:2019-08-15 发布日期:2019-08-08
  • 作者简介:王海起(1972-),男,副教授、博士,主研方向为地理信息系统、数字油田;费涛,硕士研究生;彭佳琦,硕士;李谊让,硕士研究生;龚蔚青,高级工程师。
  • 基金项目:
    国家自然科学基金(41471322);山东省自然科学基金(ZR2012DM010)。

Research on System of Overground and Underground Three-Dimensional Integrated Modeling for Digital Oilfield

WANG Haiqi1, FEI Tao1, PENG Jiaqi1, LI Yirang1, GONG Weiqing2   

  1. 1. School of Geosciences, China University of Petroleum, Qingdao, Shandong 266580, China;
    2. Sinopec Petroleum Exploration and Production Research Institute, Beijing 100083, China
  • Received:2018-05-22 Revised:2018-06-28 Online:2019-08-15 Published:2019-08-08

摘要: 在对油田地上下二三维建模过程中各类数据分类和解析的基础上,采用地上CSG+地表GRID+地下Pillar混合模型建立地上下统一的数据结构和接口,分析三维地形、三维油藏、三维地物、地表二维矢量三维化、坐标系与坐标转换等可视化建模方法,根据OSG平台建立统一的三维场景,提出基于面的三维网格消隐算法和基于离散属性值的邻域作用力网格平滑算法,研究三维垂向剖切、剖切面展布与井轨迹在剖面上的投影,实现基于遗传算法的水平井水平段设计优化技术。以内蒙古某油田为实验对象,结果表明,该系统可用于数字油田地上下三维集成建模。

关键词: 数字油田, 地上下集成建模, 混合模型, 统一数据结构, 系统功能与优化技术

Abstract: Based on the classification and analysis of various types of data involved in the two-dimensional and three-dimensional modeling of overground and underground oilfields,a hybrid model is built. The model consists of overground CSG model, surface GRID model, and underground Pillar model, providing unified data structure and interfaces for the overground and underground data. Visual modeling methods are analyzed, such as three-dimensional terrain, three-dimensional oil reservoir, three-dimensional surface features, 2D-to-3D transformation of surface vectors, and conversion of coordinate systems and coordinates. Based on the OSG platform, a unified three-dimensional scene is constructed. A plane-based three-dimensional mesh blanking algorithm and a neighborhood force mesh smoothing algorithm based on discrete attribute values are proposed. The three-dimensional vertical sectioning, unfolding of sections, and projections of oil well trajectories are studied. The horizontal section design optimization techniques of horizontal wells based on the genetic algorithm is implemented. This paper takes an oil well in Inner Mongolia as the study object, and results show that this system can be used for three-dimensional integrated modeling of digital overground and underground oil fields.

Key words: digit oilfield, overground and underground integrated modeling, hybrid model, unified data structure, system functions and optimization techniques

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