徐深气田兴城地区营四段的沉积特征及成因  

Sedimentary characteristics and cause of conglomerate in Ying-4 segment of Xushen gas field

作　　者：门广田[1,2] 庞智英[1] 施尚明[3] 

机构地区：[1]大庆油田有限责任公司勘探开发研究院 [2]大庆石油学院地球科学学院,黑龙江大庆163318 [3]大庆石油学院地球科学学院

出　　处：《大庆石油学院学报》2007年第3期18-20,149-150,共3页Journal of Daqing Petroleum Institute

摘　　要：兴城地区营城组四段砾岩储层为徐深气田主要储层之一.通过岩心观察和描述,结合普通薄片、铸体薄片、扫描电镜等资料,对营四段砾岩沉积特征进行了研究.营四段砾岩沉积的总体特征为巨厚的灰绿色颗粒支撑块状层理(火山)中砾岩;营四段砾岩的成因为向辫状河三角洲过渡的“浅的砾质辫状河型扇三角洲相”.This paper discusses conglomerate reservoir of Yingcheng group 4 section , which is one of the main reservoirs in Xingcheng area. Ying 4 section conglomerate reservoir are studied based on subtle core observation, plentiful rock thin-section identification, cast thin-section picture statistic analyses, scanning electron microscope observation and Feature data of conglomerate pore structure by mercury injection method. The collectivity character of conglomerate sediment in Ying 4 section is a very thick celadon massive bedding conglomerate which is grain supported. This paper discusses the macro depositing character of conglomerate of Ying-4 segment. With this foundation, we regard the cause of conglomerate in Ying-4 segment as, transiting to braided river delta, braided-river fan-delta which is shallow and conglomerate, and classify it to three kind of Sedimentary subfacies.

关 键 词：徐深气田 营四段 沉积特征 沉积成因 

分 类 号：TE121.32[石油与天然气工程—油气勘探]