油气藏评价与开发
油氣藏評價與開髮
유기장평개여개발
2013年
2期
1-5,14
,共6页
何丹%段新国%吕鹏%衡勇
何丹%段新國%呂鵬%衡勇
하단%단신국%려붕%형용
合川%须二段%储层特征%主控因素
閤川%鬚二段%儲層特徵%主控因素
합천%수이단%저층특정%주공인소
Hechuan%Xu-2 member%reservoir characteristic%main controlling factors
通过岩心资料、镜下薄片鉴定、测井资料解释等，对合川地区须二段的储层特征及其主控因素进行了深入的研究。研究区储层物性主要受沉积作用和成岩作用的双重控制。储层岩性主要以岩屑长石砂岩和长石岩屑砂岩为主，属于低孔低渗致密砂岩。须二段主要为三角洲前缘相沉积。有利储层发育的微相为水上分流河道和河口坝。有利储层发育的成岩作用主要是环边绿泥石胶结、溶蚀作用、构造破裂作用。
通過巖心資料、鏡下薄片鑒定、測井資料解釋等，對閤川地區鬚二段的儲層特徵及其主控因素進行瞭深入的研究。研究區儲層物性主要受沉積作用和成巖作用的雙重控製。儲層巖性主要以巖屑長石砂巖和長石巖屑砂巖為主，屬于低孔低滲緻密砂巖。鬚二段主要為三角洲前緣相沉積。有利儲層髮育的微相為水上分流河道和河口壩。有利儲層髮育的成巖作用主要是環邊綠泥石膠結、溶蝕作用、構造破裂作用。
통과암심자료、경하박편감정、측정자료해석등，대합천지구수이단적저층특정급기주공인소진행료심입적연구。연구구저층물성주요수침적작용화성암작용적쌍중공제。저층암성주요이암설장석사암화장석암설사암위주，속우저공저삼치밀사암。수이단주요위삼각주전연상침적。유리저층발육적미상위수상분류하도화하구패。유리저층발육적성암작용주요시배변록니석효결、용식작용、구조파렬작용。
By analyzing core data, thin slice and logging data interpretation, this paper deeply investigated the reservoir characteris-tics and controlling factors of the Xu-2 member in Hechuan area. Reservoirs physical properties of study area are double controlled by sedimentation and diagenesis. The reservoir lithology mainly of the lithic arkose and the feldspathic litharenite belongs to low po-rosity and low permeability tight sandstone. Xu-2 member is mainly of the delta front facies deposition. The favorable sedimentary subfacies for reservoir are distributary channels and mouth bars. The favorable diagenesis for reservoir are rim chlorite cementa-tion, denudation and tectonic disruption.
