
2015年9月,第21卷,第3期,461-470页 September 2015, Vol. 21, No.3, pp. 461470
DOI: 10.16108/j.issn10067493.2015061
高校地质学报
Geological Journal of China Universities
准噶尔盆地下二叠统风城组致密碎屑岩储层发育特征
朱世发2,刘欣12,马勤3,马爱钰4,朱筱敏"2*,贾业1.2
1.中国石油大学(北京)油气资源与探测国家重点实验室,北京102249:
2.中国石油大学(北京)地球科学学院,北京102249;
3.中石化中愿油田分公司采油五厂地质研究所,濮阳457001; 4.中国石油新量油田分公司勘探开发研究院,克拉玛依834000
捕要:准噶尔盆地西北缘乌尔禾一夏子街地区下二叠统风城组发育了典型的致密碎屑岩储层。综合地质和地球物理资料研究了该区储层发育特征。结果表明风城组沉积早期和晚期弱体规模相对较大,零星分布有小规模的滑期浊积期和灌坝矽体。风城组沉积中期,湖盆水体扩张,扇体不发育。滩坝砂岩物性好于扇三角洲前缘砂体,好于浊积扇。高成熟度的砂砾岩为优质储层(岩相)。岩石组分中的火山物质影响储层的成岩演化,进而影响储层质量。塑性的凝灰岩屑降低抗压实能力;凝灰岩屑在埋藏过程中水解、蚀变,析出不同自生矿物,破坏孔隙;长石、岩屑、基质和各种自生矿物溶蚀,一定程度上增加孔原。风城组醇屑岩储层整体为低孔、低渗的致密砂岩储层,“甜点”发育受多因素复合控制,包括沉积相带、岩石组分、粒度、成熟度、溶蚀作用的发育程度等。
关键词:致密储层;深部储层;碎屑岩;风城组;准噶尔盆地
中图分类号:P618.13
文献标识码:A
文章编号:1006-7493(2015)03046110
TheDevelopmentCharacteristicsofTightClasticReservoirs
intheLowerPermianFengchengFormationin
Wu-XiaAreaof theJuggarBasin
ZHU Shifa'2, LIU Xin'2, MA Xun', MA Aiyu, ZHU Xiaomini2*, JIA Ye'2
1. State Key Laboratory of Petroleum Resource and Prospeeting, China University of Petroleum, Beijing 102249, China:
2. College of Geosciences, China University of Petroleum, Beijing 102249, China;
3. Institude of Geology of the Fifth Oil Production Plant, Central Plains Oilfield Subeompany of Sinopec, Puyang 457001, China: 4. Research Institute of Petroleum Exploration and Development, Xinjiang Oilfield Subxcompany, CNPC, Karamay 834000, China
Abstract: Typical tight clastic reservoirs were developed in the Lower Permian Fengcheng Formation in WuXia area in the northwestern margin of the Junggar Basin. Based on the geological and geophysical data, the reseroirs' characteristics have been studied. The results show that the fans are relatively large during the early and late periods of the Fengcheng Formation, with small-scale slump turbidite fans and shoal-har sand hodies sporadically distributed. The water hoxlies expanded and the fan hoxdies were not developed in the middle stage of the Fengcheng Formation. The physical properties of shoal-har sandstones are better than those of the sandstones of fan delta front and turbidite fans. Glutenites with high maturity are high-quality reservoir rocks. The voleanic materials in 收稿日期:20150330;修回日期:20150603
基金项目:国家自然科学基金青年基金(41202107);教育部高等学校博士学科点专项科研基金(新教师类)(20120007120004);中国石油大学
(北京)科研基金(KYJJ20120120)联合资助
作者简介:朱世发,男,1982年生,博士,副教授、碳士生导师,主要从事储层地质学与况积学教学和研究工作:E-mail:zhushifa_2sf@163.eom
+通讯作者:宋载敏,男,1960年生,博士,教授,博士生导师,主要从事况积学与层序地层学教学和研究工作;E-mail:xmxhu@csp.eduer