成都理工大学学报（自然科学版）
成都理工大學學報（自然科學版）
성도리공대학학보（자연과학판）
JOURNAL OF CHENGDU UNIVERSITY OF TECHNOLOGY(SCIENCE & TECHNOLOGY EDITION)
2015年
1期
80-89
,共10页
徐窻昊%钱劲%袁海锋%徐国盛%梁家驹
徐窻昊%錢勁%袁海鋒%徐國盛%樑傢駒
서창호%전경%원해봉%서국성%량가구
湘中拗陷%湘东南拗陷%页岩气%沉积模式%储层特征
湘中拗陷%湘東南拗陷%頁巖氣%沉積模式%儲層特徵
상중요함%상동남요함%혈암기%침적모식%저층특정
Xiangzhong depression%Xiangdongnan depression%shale gas%depositional model%reservoir characteristics
中扬子地区湘中、湘东南拗陷泥盆系－二叠系主要发育4套泥页岩层系，其中泥盆系佘田桥组与棋梓桥组泥页岩主要发育于海相台盆内，二叠系龙潭组、石炭系测水组泥页岩则主要发育于海陆交互环境中的滨海－沼泽相内。利用X射线衍射技术、扫描电镜技术、等温吸附技术，并结合区域沉积背景，对湘中、湘东南拗陷页岩层系储层特征进行了全面的分析研究。结果表明，湘中、湘东南拗陷泥页岩层系的岩石矿物成分中石英、碳酸盐矿物、黏土矿物的平均质量分数分别为29．4％、21．2％和44．6％。孔隙类型中既包括连通性较好的格架孔、有机质孔、生物体腔孔等，也包括连通性较差的溶蚀孔。整体孔喉关系较好。湘中地区吸附气量Langmuir体积平均为1．72 cm3／g；湘东南地区吸附气量Langmuir 体积平均为1．775 cm3／g。对比美国Barnett页岩储层特征，认为湘中、湘东南地区泥页岩层系具有良好的储层特征及含气性，具有较高的勘探开发潜力。
中颺子地區湘中、湘東南拗陷泥盆繫－二疊繫主要髮育4套泥頁巖層繫，其中泥盆繫佘田橋組與棋梓橋組泥頁巖主要髮育于海相檯盆內，二疊繫龍潭組、石炭繫測水組泥頁巖則主要髮育于海陸交互環境中的濱海－沼澤相內。利用X射線衍射技術、掃描電鏡技術、等溫吸附技術，併結閤區域沉積揹景，對湘中、湘東南拗陷頁巖層繫儲層特徵進行瞭全麵的分析研究。結果錶明，湘中、湘東南拗陷泥頁巖層繫的巖石礦物成分中石英、碳痠鹽礦物、黏土礦物的平均質量分數分彆為29．4％、21．2％和44．6％。孔隙類型中既包括連通性較好的格架孔、有機質孔、生物體腔孔等，也包括連通性較差的溶蝕孔。整體孔喉關繫較好。湘中地區吸附氣量Langmuir體積平均為1．72 cm3／g；湘東南地區吸附氣量Langmuir 體積平均為1．775 cm3／g。對比美國Barnett頁巖儲層特徵，認為湘中、湘東南地區泥頁巖層繫具有良好的儲層特徵及含氣性，具有較高的勘探開髮潛力。
중양자지구상중、상동남요함니분계－이첩계주요발육4투니혈암층계，기중니분계사전교조여기재교조니혈암주요발육우해상태분내，이첩계룡담조、석탄계측수조니혈암칙주요발육우해륙교호배경중적빈해－소택상내。이용X사선연사기술、소묘전경기술、등온흡부기술，병결합구역침적배경，대상중、상동남요함혈암층계저층특정진행료전면적분석연구。결과표명，상중、상동남요함니혈암층계적암석광물성분중석영、탄산염광물、점토광물적평균질량분수분별위29．4％、21．2％화44．6％。공극류형중기포괄련통성교호적격가공、유궤질공、생물체강공등，야포괄련통성교차적용식공。정체공후관계교호。상중지구흡부기량Langmuir체적평균위1．72 cm3／g；상동남지구흡부기량Langmuir 체적평균위1．775 cm3／g。대비미국Barnett혈암저층특정，인위상중、상동남지구니혈암층계구유량호적저층특정급함기성，구유교고적감탐개발잠력。
In the Middle Yangtze region,there mainly develop four set of mud shale series of strata in Devonian-Permian System of the Xiangzhong-Xiangdongnan depression.Among them,the mud shale of the Devonian Shetianqiao Formation and Qiziqiao Formation mainly develops in the marine basin and that of the Permian Longtan Formation as well as the Carboniferous Ceshui Formation mainly develops in the littoral-swamp facies of the sea and land interaction environments. This paper comprehensively analyzes and studies the reservoir properties of the shale series of strata in the middle of Hunan and the southeast of Hunan using X-ray diffraction technique,scanning electron microscopes technology and adsorption isotherm technique,and considering the sedimentary background.The study result shows that in the shale series of strata in the middle of Hunan and the southeast of Hunan,the contents of quartz,carbonate minerals and clay minerals are 29.4%,21.2% and 44.6%, respectively.The pore types include well-connected hack pore,organic matter pole,biological cavity pole,and poor-connected corrosion poles.The total pore throat relationship is good.The adsorption capacity Langmuir volume in the middle of Hunan is 1 .72 cm3/g on an average and that in the southeast of Hunan is 1.775 cm3/g on an average.Compared with the Barnett shale reservoir properties,this paper indicates that the mud shale series of strata in the middle and the southeast of Hunan have a good gas-bearing property and reservoir properties and great exploration and development potentials.
