中国煤层气技术可采资源潜力_张新民

文章编号:1001-1986(2007)04-0023-04

中国煤层气技术可采资源潜力

张新民1,赵靖舟2,张培河1,郑玉柱1,李建武1,韩保山1,王明镇3,林大扬4,董敏涛

1

(1.煤炭科学研究总院西安研究院,陕西西安710054;2.西安石油大学,陕西西安710065;

3.山东科技大学,山东青岛271019;

4.中国煤炭地质总局,北京100039)

摘要:煤层气原地资源量和技术可采资源量的计算结果,可为国家制定煤层气开发战略提供决策依据,也可为煤层气开发的相关部门或单位提供参考依据,对推动我国煤层气产业发展具有重要意义。通过对我国褐煤分布区的煤层气资源量的计算,弥补了我国长期缺少褐煤煤层气资源量的缺陷,使我国煤层气资源量数据更加完整,我国陆上煤层埋深2000m 以浅的煤层气原地资源量为32.86@1012

m 3

,其中,褐煤主要分布区为1.40@1012

m 3

,非褐煤地区为31.46@1012

m 3

。利用已建立的煤层气技术可采资源量评价方法体系,并基于目前的开发技术,对我国煤层气技术可采资源量进

行计算,结果为13.90@1012m 3

,占原地资源量的42%。

关 键 词:煤层气;资源预测;原地资源量;富气带分析;技术可采资源量中图分类号:P618.11 文献标识码:A

C hina coalbed gas technically recoverable resource potential

Z HANG Xin -min 1

,ZHAO Jing -zhou 2

,Z HANG Pe-i he 1

,Z HE NG Yu -zhu 1

,LI Jian -wu 1

,HAN Bao -shan 1

,W ANG Ming -zhen 3

,LIN Da -yang 4

,DONG Min -ta o

1

(1.Xi c an Branch ,China Coal Research Institute ,Xi c an 710054,China ;2.Xi c an Petroloum University ,Xi c an 710065,China ; 3.Shandong University o f Science and Technology ,Qingdao 271019,China ;

4.China National Administration o f Coal Geolo gy ,Beijing 100039,China )

Abstract :The calculated results of coalbed gas resources in place and technically recoverable resources are important for govern -ment to desi gn coalbed gas development strategy and can service as consideration basis for gas development related departmen ts and insti tutions.Therefore the data of gas in place resources and technically recoverable resources are of great si gni ficance for China coalbed gas development.In this paper the lignite resources are calculated,supplementing this item of resources,which is lack for a lon g time in coalbed gas resources calculation.In China the total conti nental coalbed gas in place (G IP )at dep th shallower than 2000m is as much as 32.86@1012m 3,from that in the area where lignite widely distributed the resources are about 1.40@1012m 3,but i n the area where wi thout ligni te the resources are as much as 31.46@1012m 3.Based on established assessment system of coalbed gas technically recoverable resources and considering the current technical measures for gas development the China recoverable coalbed gas resources are as much as 13.90@1012m 3,being 42%of total coalbed gas resources in place.Key words :coalbed gas;resource forecast;in place resources;gas -abundant zone analysis;technically recoverable resources

20世纪末和21世纪初,中国煤田地质界和煤炭科学研究总院西安研究院,基于当时的理论水平以及对褐煤区煤层气勘探开发的认识,只对我国陆

上2000m 以浅的烟煤和无烟煤分布区的煤层气资源量进行了计算

[1-2]

,而未计算我国褐煤分布区的

煤层气资源量,造成褐煤区煤层气资源量计算数据空白。另外,过去我国只计算煤层气原地资源量

(G I P ),并未对其可采性进行定量评价,这将直接影响煤层气的有效开发和利用。

针对上述实际问题,国家973计划煤层气项目设立专门课题进行研究,已取得了实质性进展,本文即为其部分研究成果。1 全国煤层气原地资源量

受美国褐煤区煤层气成功开发的启示,褐煤煤层气资源量倍受关注,国内外学者对褐煤煤层气的研究不断深入,对褐煤赋存特征、褐煤煤层气资源的认识逐渐加深

[3]

。为此,笔者对我国褐煤煤层气资

收稿日期:2007-06-05

基金项目:国家重点基础研究发展计划(973计划)项目(2002CB211706)

作者简介:张新民(1944)),男,陕西汉中人,研究员,国家973计划项目煤层气首席科学家,从事煤与煤层气地质及开发研究1

第35卷第4期2007年8月 煤田地质与勘探COAL GEOLOGY &EXPLORATION

Vol.35No.4

Aug.2007