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1、第43卷第2期煤炭科學(xué)技術(shù)Vol．43No．22015年2月CoalScienceandTechnologyFeb.2015臨興地區(qū)深部煤層氣及致密砂巖氣資源潛力評價121211謝英剛,孟尚志,高麗軍,孫新陽,段長江,王海平(1.中海油能源發(fā)展股份有限公司工程技術(shù)分公司,天津300457;2.中聯(lián)煤層氣有限責(zé)任公司,北京100011)摘要:針對鄂爾多斯盆地東緣臨興地區(qū)主煤層埋深較深、致密砂巖產(chǎn)氣層數(shù)較多的特點,分析了區(qū)內(nèi)煤儲層特征,評價了深部煤層氣及致密砂巖氣的資源潛力。研究表明,區(qū)內(nèi)構(gòu)造簡單,以單斜構(gòu)造為主,東中部局部地區(qū)發(fā)育斷裂
2、,煤儲層相對穩(wěn)定,儲層壓力呈欠壓-常壓狀態(tài),有利于煤層氣的富集;深部5號和9號煤層以半亮型的肥煤到焦煤為主,儲層物性較好,且9號煤層資源潛力較大,是深部煤層氣勘探的主要煤層;致密砂巖展布主要受控于煤系地層沉積特征,在北部地區(qū)相對發(fā)育。研究認(rèn)為,該區(qū)有利于深部煤系煤層氣與致密砂巖氣多層共采,而中南部地區(qū)為煤層氣單采有利區(qū)。關(guān)鍵詞:深部煤層;煤儲層;煤層氣;致密砂巖氣;資源潛力中圖分類號:TE132．2文獻(xiàn)標(biāo)志碼:A文章編號:0253-2336(2015)02-0021-04Assessmentsonpotentialresources
3、ofdeepcoalbedmethaneandcompactsandstonegasinLinxingArea121211XIEYing-gang,MENGShang-zhi,GAOLi-jun,SUNXin-yang,DUANChang-jiang,WANGHai-ping(1.EngineeringandTechnologyBranch,CNOOCEnergyTechnologyandServicesLimited,Tianjin300457,China;2.ChinaUnitedCoalbedMethaneCorporatio
4、nLimited,Beijing100011,China)Abstract:AccordingtothedeepdepthofthemainseaminLinxingAreaateastedgeofOrdos,manygaslayersfeaturesofthesandstone,thepaperanalyzedthecoalreservoirfeatureswithintheareaandevaluatedthepotentialresourcesofthedeepcoalbedmethaneandthecompactsandst
5、onegas.Thestudyshowedthatthestructurewithintheareawassimpleandmainlywasthemonoclinicstructure.Thedevelopmentofthestructurewasbrokeninthesomeareaofthemiddleeastpart,thecoalreservoirwasrelativestableandthereservoirpressurewasinanunder-pressuretonormalpressurestateandwasf
6、avorabletotheenrichmentofthecoalbedmethane.ThedeepNo.5andNo.9seamsweresemi-brighttypefatcoaltocokingcoalmainly,thereservoirphysicalpropertywasquitewellandtheresourcespo-tentialofNo.9seamwashighandwasthemainseamforthedeepcoalbedmethaneexploration.Thelayoutofcompactsands
7、tonewascon-trolledbythesedimentaryfeaturesofthecoalmeasurestrataandwasrelativelydevelopedinthesouthpart.Thestudyheldthattheareawasfavorabletothemultilayersimultaneousminingofthedeepcoalmeasurecoalbedmethaneandcompactsandstonegasandamongthearea,butthemiddleandsouthpartc
8、ouldbeafavorablezoneforasingleminingofthecoalbedmethane.Keywords:deepseam;coalreservoir;coalbedmethane;compactsandsto
