國地殼運動具有多期疊加性,構(gòu)造活動具有多樣性,成煤和煤化作用地質(zhì)條件復(fù)雜,
煤層氣富集成藏條件具有諸多特殊性。本文通過系統(tǒng)總結(jié)我國煤層氣地質(zhì)背景和成藏富集規(guī)律,
建立了一套以體積法和區(qū)帶綜合評價方法為主的評價方法體系和相應(yīng)的參數(shù)體系,評價獲得全國
42個主要含氣盆地埋深2000m以淺煤層氣地質(zhì)資源量36.81×1012m3,埋深1500m以淺煤層氣可
采資源量lO.87 x 1012m3,集中分布在地質(zhì)資源量大于10000×lOsm3的鄂爾多斯、沁水等9個盆
地。優(yōu)選出沁水和鄂爾多斯盆地東緣2個最有利區(qū)帶,鄂爾多斯盆地南緣、寧武、安陽一鶴壁、
松藻4個有利區(qū)帶,準南、伊犁等11個較有利區(qū)帶。
關(guān)鍵詞:煤層氣資源評價盆地區(qū)帶
Coalbed Methane Resource Assessment in China
。(Liu Chenglinl,Che Changb02,Zhu Jid,Yang Hulin2,F(xiàn)anMingzhu3)
(1.State Key Laboratory of Petroleum Resource and Prospecting,China University of Petroleum,Beijing
102249;2.Oil&Gas Strategy Research Center of the Ministry of Land and Resources,Beijms 100034;
3.Exploration and Production Research Institute of Sinopec,Beijing 100083)
Abstract:mle authors have established a system of methods and a corresponding parameter system for evaluation
of re$o蝴.mainly including the volumetric method and zonal composite evaluation method.’11le results
of evaluation黜that‰CBM geological re$ources疵36.8l×1012m3 in coal seams to a depth of2000m,the
workable CBM l'eso嗍ale 10.87×1012m3 in seams to a depth of 1500m iIl 42 major gas—bearing CBM basins
in China.They aI℃distributed mostly in 9 basins,such 818 Ordos and Qinshni basins with geological l'eso嘲
of mol'e than 10000×108In3.Two most favorable zones are selected in Qinshui basin and eastern fringe of Ordos
basin,four favorable zones including southern fringe of Ordos basin,Ningwu,Anyang—Hebi,and
Songzao,and eleven鼬rly favorable zones in Huainan,Yili,etc.
Keywords:CBM;resoulv沱evaluation;basin;zone
引言絮塞釜篙嬲鬣篇霉爰
相對美國含煤盆地較簡單的構(gòu)造演化史而言, 雜,低階煤和高階煤煤層氣資源比重大。因此,盡
*本文為國土資源部、國家發(fā)展和改革委員會與財政部聯(lián)合組織的國家重大項目“新一輪全國油氣資源評價(2003—2007)”