鹤岗煤田煤层气选区评价方法  

Preferable CBM Zone Assessment in Hegang Coalfield

作　　者：毛毳[1] 韩欣澎 王有智[3] 

机构地区：[1]东北石油大学地球科学学院,黑龙江大庆163318 [2]中国石油集团海洋工程有限公司工程设计院,北京100028 [3]大庆油田有限责任公司勘探开发研究院,黑龙江大庆163712

出　　处：《中国煤炭地质》2018年第1期37-41,共5页Coal Geology of China

基　　金：国家科技重大专项:大型油气田及煤层气开发(项目编号:2011ZX05040);国家自然科学青年基金项目"塔北奥陶系露头含油古钙华的形成机制及储集能力"(项目批准号:41702154);东北石油大学青年科学基金

摘　　要：煤层气勘探是一个动态过程,其中区带评价方法和勘探阶段的匹配是十分重要环节。从定性到定量选取传统叠合法、灰色聚类法和主成分分析法三种评价方法,以鹤岗煤田选区评价结果为基础,分别探讨三种方法在应用过程中的优势和劣势。研究表明:三种方法均将南山矿和益新矿评价为鹤岗煤田最优区。传统叠合法在选区过程中具有"简单、快速"优势,但单一因素简单叠加无法真实反应复杂成藏过程的劣势使该方法适用范围受限。灰色聚类和主成分分析法的评价结果契合度较高,解决了煤层气有利区带定量评价的难题。灰色聚类依然存在主观因素的影响,而主成分分析法更具有优势,既简化了评价体系,又摒弃了主观因素的干扰。在探讨了三种方法的优缺点后,认为定性和定量评价方法的综合运用可以更好的为煤层气选区服务。The CBM exploration is a dynamic procedure. In which, the matching of zonal assessment and exploration stage is a very im- portant link. From qualitative to quantitative, the assessment has adopted traditional superposition, grey clustering and principal com- ponent analysis three methods. Based on the results from preferable CBM zone assessment in the Hegang coalfield, have discussed ad- vantages and disadvantages of the three methods during the application process. The result has shown that all three methods have as- sessed the Nanshan coalmine and Yixin coalmine as the preferable zones in Hegang coalfield. The traditional supe^3position during the preferring process has advantages of ＂ simple and fast＂ , but single factor simple superposition could not reflect complicated reservoiring process truly, thus its application scope is limited. The assessed results from grey clustering and principal component analysis can be highly tallied with, and solved the hard nut in preferable CBM zone quantitative assessment. In grey clustering is still existed impact from subjective factors, while principal component analysis is more advantageous, it has simplified assessment system, as well as aban- doned interference from subjective factors. After the discussion, we have considered that the integrated application of qualitative and quantitative assessment methods can make CBM zone preferring better.

关 键 词：煤层气选区 评价方法 定量评价 鹤岗煤田 

分 类 号：P618.11[天文地球—矿床学]