中国矿业
中國礦業
중국광업
CHINA MINING MAGAZINE
2014年
9期
83-88
,共6页
李业会%齐立新%夏秋君%杨竞旭%陈少勇%曹同锋
李業會%齊立新%夏鞦君%楊競旭%陳少勇%曹同鋒
리업회%제립신%하추군%양경욱%진소용%조동봉
储层特征%成岩作用%溶蚀作用%沙三段%高尚堡油田
儲層特徵%成巖作用%溶蝕作用%沙三段%高尚堡油田
저층특정%성암작용%용식작용%사삼단%고상보유전
reservoir characteristics%diagenesis%dissolution%the third member of Shahejie formation%Gaoshangpu oil field
高尚堡油田沙三3储层主要为一套长石岩屑砂岩及岩屑长石砂岩，具有低成分成熟度和结构成熟度、近源快速堆积的特点。该套储层先后经历了压实作用和压溶作用、胶结作用、溶蚀作用、自生矿物的充填作用、交代作用和破裂作用改造，其中早期绿泥石的环边胶结作用、有机酸热液的溶蚀作用及破裂作用对储层具有建设性，压实-压溶作用是导致储层物性快速变差的主要原因，碳酸盐的胶结交代、硅质胶结、黏土矿物胶结及自生矿物的充填作用对储层具有一定伤害性。研究表明，高尚堡油田沙三3储层目前主要处于中成岩阶段，不同成因类型的孔隙为其主要的储集空间，储层孔、渗具有良好的相关性，主要发育孔隙型中低孔-低渗型储层，储层物性有随埋深加大而逐渐变差的趋势，埋深较浅的（水下）分流河道发育区是最有利的储集相带。
高尚堡油田沙三3儲層主要為一套長石巖屑砂巖及巖屑長石砂巖，具有低成分成熟度和結構成熟度、近源快速堆積的特點。該套儲層先後經歷瞭壓實作用和壓溶作用、膠結作用、溶蝕作用、自生礦物的充填作用、交代作用和破裂作用改造，其中早期綠泥石的環邊膠結作用、有機痠熱液的溶蝕作用及破裂作用對儲層具有建設性，壓實-壓溶作用是導緻儲層物性快速變差的主要原因，碳痠鹽的膠結交代、硅質膠結、黏土礦物膠結及自生礦物的充填作用對儲層具有一定傷害性。研究錶明，高尚堡油田沙三3儲層目前主要處于中成巖階段，不同成因類型的孔隙為其主要的儲集空間，儲層孔、滲具有良好的相關性，主要髮育孔隙型中低孔-低滲型儲層，儲層物性有隨埋深加大而逐漸變差的趨勢，埋深較淺的（水下）分流河道髮育區是最有利的儲集相帶。
고상보유전사삼3저층주요위일투장석암설사암급암설장석사암，구유저성분성숙도화결구성숙도、근원쾌속퇴적적특점。해투저층선후경력료압실작용화압용작용、효결작용、용식작용、자생광물적충전작용、교대작용화파렬작용개조，기중조기록니석적배변효결작용、유궤산열액적용식작용급파렬작용대저층구유건설성，압실-압용작용시도치저층물성쾌속변차적주요원인，탄산염적효결교대、규질효결、점토광물효결급자생광물적충전작용대저층구유일정상해성。연구표명，고상보유전사삼3저층목전주요처우중성암계단，불동성인류형적공극위기주요적저집공간，저층공、삼구유량호적상관성，주요발육공극형중저공-저삼형저층，저층물성유수매심가대이축점변차적추세，매심교천적（수하）분류하도발육구시최유리적저집상대。
The reservoirs in the lower unit of the third member of Eocene Shahejie Formation (Es33 ) in Gaoshangpu oil field mainly consist of feldspathic litharenites and lithic arkoses sandstones with the characteristics of low compositional maturity ,low textural maturity and rapidly proximal deposit .Important diagenetic processes that have affected the sandstones include mechanical and chemical compaction , cementation ,dissolution ,precipitation of authigenic minerals ,replacement ,and cataclasis .Generally ,early grain-coating chlorite and dissolution associated with organic acids and/or thermal fluids ,as well as cataclasis ,are constructive diagenesis for reservoir quality ,whereas compaction is the major factors that destroy the porosity rapidly .In addition ,carbonate cements and replacements ,quartz cements and anthigenic clay minerals are the destructive diagenesis for the reservoir quality .This study indicated that the Es33 sandstones are present in the middle diagenetic stage .The space of the reservoirs is composed of the multiple-genetic pores (primary and secondary) that formed from different stages .The reservoir quality with middle-low porosity and low permeability are decrease with depths .A well correlation between porosity and permeability suggest that the sandstones are pore-type reservoirs .The shallow burial (underwater ) distributary channel sandbodies would be the most favorable targets for oil and gas exploration in the future .
