干旱区生态环境知识资源中心(Arid): 东营凹陷古近系红层储层成岩作用特征及形成机制

Arid

	东营凹陷古近系红层储层成岩作用特征及形成机制
其他题名	Diagenetic characteristics and formation mechanism of Paleogene red bed reservoirs in Dongying sag
	王健 1; 操应长 1; 高永进 2; 刘杰 3
来源期刊	石油学报
ISSN	0253-2697
出版年	2013
卷号	34 期号:2 页码:283-292
中文摘要	东营凹陷古近系孔店组一段(简称孔一段)-沙河街组四段下亚段(简称沙四下亚段)沉积时期发育了规模巨大的干旱气候条件下形成的红层沉积。综合利用钻井岩心、铸体薄片、物性及黏土矿物资料,并结合盆地埋藏演化史,对储层成岩作用特征及成因机制进行了系统研究。储层具有多重碱性成岩环境和酸性成岩环境作用特征。压实作用中等偏强,热压实效应明显。胶结物类型主要包括碳酸盐、铁碳酸盐、石膏、硬石膏和自生石英等,胶结作用在砂体边缘强,砂体内部较弱,砂体中部胶结物含量由断块下部向断块上部逐渐增加。溶解作用主要为碱性环境下形成的石英溶解和酸性环境下形成的长石、碳酸盐胶结物溶解,溶蚀孔隙含量由砂体边缘向砂体内部逐渐增加,由断块下部向断块上部逐渐降低。交代作用主要为碳酸盐、硫酸盐胶结物交代石英、长石颗粒及石英加大、铁碳酸盐交代碳酸盐。红层储层经历了早期碳酸盐及石膏胶结、早期石英溶解长石及碳酸盐胶结物溶解、自生石英胶结晚期碳酸盐及硬石膏胶结、晚期石英溶解晚期少量碳酸盐胶结物、长石溶解的成岩演化序列。多重碱性及酸性成岩环境交替演化和上升流作用机制控制了储层的发育。
英文摘要	Red bed deposits developed on a large scale during the Ek_1-Es_4~x stage of Paleogene in Dongying sag under arid climate. Integrated with analyses of burial and evolutionary histories of the basin, diagenetic characteristics and formation mechanism of red-bed reservoirs in the study area were systematically investigated based on data of drilling cores, casting thin sections, physical properties and clay minerals. These red bed reservoirs are characterized by the formation in multiple alkaline and acidic diagenetic environments, moderate to strong compaction, and apparent thermal compaction. Cement types mainly include carbonate, ferrocarbonatite, authigenic quartz, gypsum and anhydrite. Cementation is strong at the boundary belt of sandstones but relatively weak at the middle part of sandstones, where cement contents increase gradually from the lower part to the upper part of fault blocks. Dissolution in red-bed reservoirs occurs mainly as quartz dissolution in an alkaline diagenetic environment or feldspar and carbonate cement dissolution in an acidic diagenetic environment. Dissolution plane porosity increases gradually from the fringe to the bosom of sand bodies but decreases gradually from the lower part to the upper part of fault blocks. Metasomatism occurs mainly in quartz and feldspar grains with carbonate and sulfate cements, authigenic quartz, and carbonate with ferrocarbonatite. The diagenetic sequence of red-bed reservoirs was specified from the early carbonate and gypsum cementation, early quartz dissolution to the feldspar and carbonate cement dissolution, authigenic quartz cementation to the late carbonate and anhydrite cementation, late quartz dissolution then to the late carbonate cement and feldspar dissolution. The alternate evolution of multiple alkaline and acidic diagenetic environments and the action mechanism of upwelling current have controlled the development of these reservoirs.
中文关键词	红层 ; 成岩作用 ; 成岩环境 ; 成岩序列 ; 形成机制 ; 古近系 ; 东营凹陷
英文关键词	red bed diagenesis diagenetic environment diagenetic sequence formation mechanism Paleogene Dongying sag
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENERGY FUELS
WOS研究方向	Energy & Fuels
CSCD记录号	CSCD:4793768
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/230106
作者单位	1.(东营)中国石油大学地球科学与技术学院, 青岛, 山东 266580, 中国; 2.中国石化胜利油田公司地质科学研究院, 东营, 山东 257015, 中国; 3.(北京)中国地质大学能源学院, 北京 100083, 中国
推荐引用方式 GB/T 7714	王健,操应长,高永进,等. 东营凹陷古近系红层储层成岩作用特征及形成机制[J],2013,34(2):283-292.
APA	王健,操应长,高永进,&刘杰.(2013).东营凹陷古近系红层储层成岩作用特征及形成机制.石油学报,34(2),283-292.
MLA	王健,et al."东营凹陷古近系红层储层成岩作用特征及形成机制".石油学报 34.2(2013):283-292.