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ID:37370024
大小:1.89 MB
页数:7页
时间:2019-05-21
《天然气水合物储集类型的测井响应特征》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、学兔兔www.xuetutu.com第25卷8期中国煤炭地质V01.25No.082013年8月C0ALGE0L0GY0FCHINAAug.2013doi:10.3969~.issn.1674—1803.2013.08.13文章编号:1674一l803(2013)08—0055一O7天然气水合物储集类型的测井响应特征田贵发,栾安辉,赵平,弓佩章(青海煤炭地质局勘查院,青海西宁810001)摘要:通过木里煤田聚乎更煤矿区四井田、哆嗦公马、雪霍立三个矿区(井田)大量测井资料的分析和研究,并结合祁连山冻土区天然气水合物DK一
2、1科学试验孔测井资料的综合对比和解释,对煤田常规测井参数在天然气水合物储集层上的响应特征进行了分析。根据该区常年冻土(岩)的勘探成果及测井曲线响应特征,将陆源天然气水合物储集层分为生气层与储集层的相对位置、纵向位置、空间位置、储集介质等四大类,上生下储、下生上储、自生自储、冻土(岩)带内、增温带内等11个亚类。在此基础上建立了与富冰型、煤层自储型、孔隙型、裂隙型等多种储集模式对应的典型测井曲线响应特征。利用测井方法识别天然气水合物储集层的方法,可为青藏高原研究、评价、勘查、开发天然气水合物提供可靠的解释依据。关键词:冻
3、土(岩);天然气水合物;储集类型;测井曲线;青藏高原中图分类号:P631.8文献标识码:AWellLoggingResponseCharacteristicsofVariousNaturalGasHydrateAccumulationTypesTianGuifa,LuanAnhui,ZhaoPingandGongPeizhang(QinghaiCoalGeologicalExplorationInstitute,Xining,Qinghai810001)Abstract:Basedonanalysesandstudie
4、soflargeamountwellloggingdatafrom3mineareas(minefields)intheMuricoalfield,eom—binedwithcorrelationandinterpretationofwellloggingdatafromnaturalgashydrateDK一1scientifictestholeintheQilianMts.per—mafrostregion,carriedoutanalysisofnaturalgashydratereservoirresponse
5、characteristicsoncoalfieldconventionalwellloggingpa—rameters.Accordingtoexplorationresultsandloggingtracesresponsecharacteristicsofperennialfrozensoil(rock)inthearea,basedonfourclassificationbasesofrelativepositionofgenerationlayerandreservoir,verticalposition,s
6、patialpositionandmediumofaceu—mulation,dividedthenaturalgashydrateaccumulationintoeleventypesofgenerationlayerupperreservoirlower,generationlayerlow—erreservoirupper,identicalgenerationlayerandreservoir,withinzoneoffrozensoil(rock),withinzoneofconstructivetemper
7、atureandSOon.Onthisbasisestablishedtypicalloggingtraceresponsecharacteristicscorrespondingtomultipleaccumulationmodesofice—rich,coalseamperse,porousandfissuredete.Thewellloggingmethodtoidentifynaturalgashydratecanbethereliableinterpretationbasistostudy,evaluate,
8、exploreandexploitnaturalgashydrateintheQinghai—TibetanPlateau.Keywords:frozensoil(rock);naturalgashydrate;accumulationtype;loggingtrace;Qinghai—TibetanPlateau0前言天然气水合
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