[1]胡 峰,龙思萍,王雪梅,等.武威盆地儿马湖凹陷石炭系页岩气资源潜力及沉积相分析[J].复杂油气藏,2019,12(04):19-23.[doi:10.16181/j.cnki.fzyqc.2019.04.004]
 HU Feng,LONG Siping,WANG Xuemei,et al.Resource potential and sedimentary facies of Carboniferoussystem shale gas of Ermahu Depression in Wuwei Basin[J].Complex Hydrocarbon Reservoirs,2019,12(04):19-23.[doi:10.16181/j.cnki.fzyqc.2019.04.004]
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武威盆地儿马湖凹陷石炭系页岩气资源潜力及沉积相分析()
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《复杂油气藏》[ISSN:1674-4667/CN:31-2019/TQ]

卷:
12卷
期数:
2019年04期
页码:
19-23
栏目:
油气勘探
出版日期:
2019-12-25

文章信息/Info

Title:
Resource potential and sedimentary facies of Carboniferoussystem shale gas of Ermahu Depression in Wuwei Basin
作者:
胡 峰1龙思萍2王雪梅1吴增友1高怀军1李金芝2
1.中国石油东方地球物理勘探公司西南物探分公司,四川 成都 610213; 2.中国石油东方地球物理勘探公司西南物探研究院,四川 成都 610213
Author(s):
HU Feng1LONG Siping2WANG Xuemei1WU Zengyou1GAO Huaijun1LI Jinzhi2
1.BGP Southwest Geophysical Company, CNPC,Chengdu 610213, China; 2. Southwest Geophysical Exploration Branch of BGP, CNPC, Chengdu 610213, China
关键词:
页岩气 沉积相 资源潜力 石灰系 儿马湖凹陷 武威盆地
Keywords:
shale gas sedimentary facies resource potential Carboniferous system Ermahu Depression Wuwei Basin
分类号:
TE132
DOI:
10.16181/j.cnki.fzyqc.2019.04.004
文献标志码:
A
摘要:
甘肃河西走廊武威盆地儿马湖凹陷是石炭系发育和保存较好的地区之一,其沉积环境以三角洲为主,其次为滨湖相、深湖相。依据BC3井和WD1井钻、测井分析,武威盆地儿马湖凹陷斜坡带向洼陷中心泥砂比逐渐增大,泥页岩厚度较大、分布较广。该区石炭系页岩有机碳含量高,处于高成熟-过成熟阶段,有机质类型为Ⅲ型,具有较好的页岩气形成条件。目前,鉴于儿马湖凹陷页岩气地震勘探程度低,钻井资料少,其地质认识还处于初级阶段,页岩层分布及厚度变化还不十分清楚,不利于页岩气水平井部署、钻探和后续水裂压力作业。因此,在儿马湖凹陷页岩气勘探中,依据少量钻、测井地质资料及地震响应,用地震相转化为沉积相分析方法,查明页岩层分布及厚度变化是非常重要的。
Abstract:
Ermahu Depression in Wuwei Basin is one of areas with good development and conservation of Carboniferous system,where the sedimentary environment gives priority to delta, followed by shore lake facies and deep lacustrine facies. Based on analysis of drilling and logging for well BC3 and well WD1, the Ermahu Depression is developed towards the sunken center,with gradually increasing the loam rate and shale gradually thickened and widely distributed. The Carboniferous system shale in this district has high content of organic carbon and it is kept in high maturity-over maturity stage. The organic matter type belongs to type III,with good formation conditions of shale gas. At present, considering that the shale gas seismic exploration in Ermahu Depression is still in initial stage, the shale gas distribution and thickness are unclear due to less drilling data,which is unbeneficial for the deployment,drilling and subsequent hydraulic fracturing operation of shale gas horizontal well.Thus, it is very important to figure out shale gas distribution and thickness changes by using the method of transforming seismic facies into sedimentary facies based on the geological data and seismic response of drilling wells.

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备注/Memo

备注/Memo:
收稿日期:2019-07-15; 改回日期:2019-09-17。
作者简介:胡峰(1988—),硕士,地震资料采集方法研究方向。E-mail:34567521@qq.com。
更新日期/Last Update: 2019-12-30