石油工程 油气的开采与开拓

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中国石油大学(华东)现代远程教育

毕业设计(论文)

题 目: 油气的开采与开拓 学习中心: ********学习中心 年级专业: 网络**** 石油工程 学生姓名: **** 学 号: *********** 指导教师: 职 称: 导师单位:

中国石油大学(华东)远程教育学院

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中国石油大学(华东)现代远程教育

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摘 要

在调研国内外利用水平井开发低渗透油藏的基础上,综合分析了低渗透油藏利用水平井开发的优越性以及目前水平井井网部署存在的问题,并通过油藏工程方法、数值模拟手段、经济评价原理,优化设计出一套适合低渗透油藏水平井井网布置的方法,主要包括直井与水平井联合井网的井网密度优化。

对十井网形式及井网参数的优化,设计了不同井网系统参数与储层参数的组合方案,包括水平井与直井注采井网形式的合理匹配、水平井段方向与裂缝方向的合理匹配、注采井排距与水平井段长度的合理匹配等,并通过各种组合关系所预测的采油速度、累积产量、含水、采出程度等开发指标进行衡量,最终获得最佳的注采井网形式、水平井段方向、水平井段垂向位置、井排距等参数的最优组合方法。

关键词:低渗透油藏,水平井,井网密度,井网,裂缝,数值模拟

In the research of domestic and international use of horizontal wells in low permeability reservoir based on, the comprehensive analysis of the low permeability reservoirs using horizontal well development superiority and the horizontal well pattern deployment problems, and through reservoir engineering method and numerical simulation method and principle of economic evaluation, optimization design a set for low permeability reservoir horizontal well pattern arrangement method, mainly including straight wells and horizontal wells combined well pattern well spacing density were optimized.

Of ten well pattern and well spacing parameter optimization, design the different well pattern parameters and reservoir parameters combination scheme, including horizontal wells and vertical wells injection production well network in the form of reasonable matching, horizontal direction and direction of fracture of reasonable matching, injection and production well row spacing and horizontal section length of reasonable matching, and through various associations predicted production rate, cumulative production, water cut and recovery degree such as the development of indicators to measure and, ultimately, the best injection production well pattern, horizontal direction, horizontal well vertical section to the location, spacing and row spacing parameters such as the optimal combination of.

Keywords: low permeability reservoir, horizontal well, well pattern density, well pattern, crack, numerical simulation

目 录

第1章 前言┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅ 1 1.1 研究目的和意义┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅ 1 1.2 国内外研究现状┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅ 2 1.3 主要研究内容┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅ 5 第2章 多井型井网在低渗油藏中的适应性分析┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅ 6 2.1 低渗透油藏概述┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅ 6 2.2低渗透油藏的特点┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅ 6 2.3 多井型井网在低渗透油藏中的适应性┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅ 7 2.3.1常规直井井网开采不足之处┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅ 7 2.3.2水平井井网开采优势┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅ 7 2.3.3水平井候选油藏参数分析┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅ 8 第3章 多井型井网优化设计研究┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅ 10 3.1 注采井型的优化设计┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅ 10 3.1.1注采井型的分类┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅ 10 3.2 水平段延伸方向的优化设计┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅ 11 3.2.1地应力对裂缝的影响┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅ 11 3.2.2水平段延伸方向优化设计研究┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅ 12 第4章 结论┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅ 14 致 谢┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅ 15 参考文献┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅ 16

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