晋城矿区(中区)煤储层渗透率影响因素及变化规律研究Study on Coal Reservoir Permeability Impacting Factors and Variation Pattern in Central Jincheng Mining Area
吴艳,贾建称
摘要(Abstract)：
在晋城矿区通过对采用注入/压降试井法获得的近40组煤储层参数进行渗透性与地质因素的相关性分析,进而探讨各相关因素对储层渗透率的影响规律,以此预测煤储层渗透率分布。结果表明,影响煤储层渗透率的关键因素是割理和宏观裂隙,现代地应力通过对割理和裂隙系统张开度的控制,间接地影响储层渗透率;储层压力、现代地应力和有效地应力是次要因素,渗透率与煤层厚度无关。晋城矿区中区3#煤层渗透率呈现出"南高北低、东高西低"以及"翼部高、轴部低"的特点,町店-大宁-潘庄围限的三角地带是煤储层渗透率较高的地区。
关键词(KeyWords)： 预测模型;渗透率;煤储层;晋城矿区
基金项目(Foundation): 国家科技重大专项课题(2016ZX05045-001);; 陕西省工业科技攻关项目(2015GY112)资助
作者(Author): 吴艳,贾建称
参考文献(References)：
- [1]刘晔,王云,刘德超.沁水盆地煤层气产业发展研究[J].中国能源,2008,30(3):42-45.
- [2]傅雪海,秦勇,韦重韬.煤层气地质学[M].江苏徐州:中国矿业大学出版社,2007:117-139.
- [3]宋岩,王红岩.煤层气成藏条件及富集规律研究[C]//中国煤层气成藏机制及经济开采基础研究(2002CB211705)项目课题报告.西安:中煤科工集团西安研究院,2008.
- [4]郭德勇,韩德馨,冯志亮.围压下构造煤的孔隙度和渗透率特征实验研究[J].煤田地质与勘探,1998,26(4):31-34.
- [5]Gan H,Nandi S P,Walker P L.Nature of porosity in American coals[J].Fuel,1972,51:272-277.
- [6]Mekee C R,Bumb A C,Way S C,et al.Use of the correlation of permeability to depth to evaluate the production potentia1 of the natural gas in coal seam[J].Quarterly review of Methane form Coal seams,Teehnology,1986,4(1):35-62.
- [7]Methanch B W,Volz R F,Potler,et al.The effect of cleat orientation and confining pressure on cleat porosity,permeability and relativepermeability in coal[A]//In:Proceedings of the 1993 International coalbed methane symposium[C],The university of Alabama/Tuscaloosa,1993:147-256.
- [8]Kulander B R,Dean S L.Coal cleat domains and domain boundaries in the Allegheny Plateau of West Virginia[J].AAPG Bull,1993,77:1374-1388.
- [9]秦勇,张德民,傅雪海,等.山西沁水盆地中、南部现代构造应力场与煤储层物性关系之探讨[J].地质论评,1999,45(6):576-583.
- [10]Laubach S E,Marrett R A,Olson J E,et al.Characteristics and origin of coal cleat-a review[J].Coal geol,1998,35:175~207.
- [11]Enever J R,Henning A.The relationship between Permeability and effective stress for Australian coal and its implication with respect to coalbed methane exploration and reservoir modeling[A]//Proceedings of the 1997 International Coalbed methane Symposium[C].Alabama,1997,241~253.
- [12]李志明,张金珠.地应力与油气勘探开发[M].北京:石油工业出版社,1997,1-27.
- [13]叶建平,秦勇,林大扬.中国煤层气资源[M].江苏徐州:中国矿业大学出版社,1998.
- [14]贾建称,张泓,贾茜,等.煤储层割理系统研究:现状与展望[J].天然气地球科学,2015,26(9):1621-1628.