煤层气

煤层气项目选区及效益综合评价方法

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  • 1.中国矿业大学(北京),北京 100083;2. 中国石油天然气股份有限公司总裁办,北京 100083;3. 中国石油勘探开发研究院廊坊分院,河北 廊坊 065007

收稿日期: 2008-04-16

  修回日期: 2008-10-06

  网络出版日期: 2009-02-10

The Evaluation Methodology for Selecting of the Coal bed Methane's Blocks and Their Benefits

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  • 1. China University of Mining and Technology,Beijing 100083,China; 
    2. China National Petroleum Corporation, Beijing 100083; 3.Langfang Branch of RIPED,Langfang 065007,China

Received date: 2008-04-16

  Revised date: 2008-10-06

  Online published: 2009-02-10

摘要

煤层气作为一种非常规的特殊油气资源类型,在项目选区、效益评价以及开发等各个方面的理论及基本方法的研究方面,与常规天然气相比还处于相对不成熟的阶段。针对煤层气项目选区,提出了应重点考虑的3项关键技术指标(即煤层的含气量、含气煤层的渗透率和煤储层压力),并结合国内外煤层气勘探开发实际情况,总结出了煤层气项目评价常用的10项具体指标。针对煤层气项目经济效益评价的复杂性,重点介绍了求取煤层气经济可采储量的2种有效方法(即现金流量法和经济极限法),并结合实例对影响煤层气效益的主要因素进行了系统的分析,为煤层气经济效益分析与评价指出了有效途径。

本文引用格式

郑得文 张君峰 孙广伯 徐小林 鞠秀娟 . 煤层气项目选区及效益综合评价方法[J]. 天然气地球科学, 2009 , 20(1) : 153 -158 . DOI: 10.11764/j.issn.1672-1926.2009.01.153

Abstract

Coal-bed Methane is a special type of unconventional natural gas resources. Its basic theories and methodology, such as selecting of the blocks, benefit evaluation, development and etc., are still at a relatively immature stage compared with the conventional natural gas. In this paper, aimed at selecting of the coal-bed methane blocks, we come up with three key technical indicators. Also, considering the actual situation of domestic and abroad coal-bed methane exploration and development, we conclude 10 specific indicators so as to provide effective help for coal-bed methane project blocks. Due to the complexity of coal-bed methane project evaluation, some factors which impact the benefits of coal-bed methane projects are analyzed systematically, for offering some approaches to economic analysis and evaluation of coal-bed methane projects. Coal-bed methane project evaluation is based on the economic recoverable reserves. In the paper, two ways to assess economic coal-bed methane reserves is presented, that is, the cash flow method and the economic limit method.

参考文献

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