|本期目录/Table of Contents|

[1]王飞龙 杜晓峰 汤国民 何俊辉 燕 歌.渤海石臼坨凸起原油地球化学特征及成因类型[J].中国海上油气,2019,31(06):69-77.[doi:10.11935/j.issn.1673-1506.2019.06.008]
 WANG Feilong DU Xiaofeng TANG Guomin HE Junhui YAN Ge.Geochemical characteristics and genetic types of crude oil in Shijiutuo uplift of the Bohai sea[J].China Offshore Oil and Gas,2019,31(06):69-77.[doi:10.11935/j.issn.1673-1506.2019.06.008]
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渤海石臼坨凸起原油地球化学特征及成因类型()

《中国海上油气》[ISSN:1673-1506/CN:11-5339/TE]

卷:
第31卷
期数:
2019年06期
页码:
69-77
栏目:
渤海海域油气勘探开发成果专辑
出版日期:
2019-11-21

文章信息/Info

Title:
Geochemical characteristics and genetic types of crude oil in Shijiutuo uplift of the Bohai sea
文章编号:
1673-1506(2019)06-0069-09
作者:
王飞龙1 杜晓峰1 汤国民1 何俊辉2 燕 歌1
(1. 中海石油(中国)有限公司天津分公司 天津 300459; 2. 中海油能源发展股份有限公司工程技术分公司中海油实验中心 天津 300452)
Author(s):
WANG Feilong1 DU Xiaofeng1 TANG Guomin1 HE Junhui2 YAN Ge1
(1. CNOOC China Limited, Tianjin Branch, Tianjin 300459, China; 2. CNOOC Experimental Center, CNOOC EnerTech-Drilling & Production Co., Tianjin 300452, China)
关键词:
渤海 石臼坨凸起 原油 地球化学特征 成因类型
Keywords:
Bohai sea Shijiutuo uplift crude oil geochemical characteristics genetic type
分类号:
TE122.1
DOI:
10.11935/j.issn.1673-1506.2019.06.008
文献标志码:
A
摘要:
石臼坨凸起是渤海中部地区重要的产油区,被多个生烃凹陷所环绕,油气来源复杂。基于石臼坨凸起地质背景,根据原油基本性质和地球化学特征,将原油划分为4类:I类原油具有高伽马蜡烷,中等4-甲基甾烷、C27甾烷优势的特征,为含蜡、低硫成熟的重质油,来源于渤中凹陷沙三段和沙一段烃源岩混合供烃,主要分布在凸起西部; II类原油具有中等伽马蜡烷、中等4-甲基甾烷、C27甾烷优势的特征,为含蜡、低硫成熟的重质油,具有明显的二次充注作用,来源于渤中凹陷沙三段和沙一段烃源岩混合供烃,主要分布在凸起中部; III类原油具有高C19-三环萜烷、中等伽马蜡烷、中等4-甲基甾烷、C27规则甾烷优势的特征,为高蜡、低硫成熟的中—轻质原油,来源于渤中凹陷沙三段和东三段烃源岩混合供烃,主要分布在凸起东倾末端南部地区; IV类原油具有中等伽马蜡烷、中等4-甲基甾烷、C27规则甾烷优势的特征,为高蜡、低硫成熟的中—轻质原油,来源于秦南凹陷沙三段和沙一段烃源岩混合供烃,主要分布在凸起东倾末端北部地区。
Abstract:
The Shijiutuo uplift is an important oil-producing area in the central part of the Bohai sea. It is surrounded by multiple hydrocarbon-generating sags and has complex oil and gas sources. Based on the geological settings of the Shijiutuo bulge, according to the basic properties and geochemical characteristics of crude oil, the crude oil in this bulge can be divided into four categories: Class I crude oil presents the characteristics of high gamma wax, medium 4-methyl decane and prominent C27 decane. It is the heavy oil with wax and low sulfur maturity, and is derived from the mixed source of hydrocarbons from the Es3 and Es1 source rocks in the Bozhong sag, mainly distributed in the western part of the bulge. The Class II crude oil presents the characteristic of medium gamma wax, medium 4-A methyl decane and prominent C27 decane. It is the heavy oil with wax and low sulfur maturity, and it shows an obvious secondary charging effect. It is derived from the mixed source of hydrocarbons from the Es3 and Es1 source rocks in the Bozhong sag, and is mainly distributed in the middle of the bulge. The Class III crude oil presents the characteristics of high C19-tricyclodecane, medium gamma wax, medium 4-methyl decane and prominent C27 regular decane. It is middle-light crude oil with high wax content and low sulfur maturity, which is derived from the mixed source of the Es3 and Ed3 Members of the Bozhong sag, mainly distributed in the southern end of eastward bulge pitching. The Class IV crude oil presents the characteristics of medium gamma wax, medium 4-methyl and prominent C27 regular decane. It is middle-light crude oil with high wax content and low sulfur maturity, which is derived from the mixed source of hydrocarbons from the Es3 and Es1 source rocks in the Qinnan sag, mainly distributed in the northern end of eastward bulge pitching.

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备注/Memo

备注/Memo:
*“十三五”国家科技重大专项“渤海重点地区古近系优质储层评价与成藏分析技术(编号:2016ZX05024-003-005)”部分研究成果。 第一作者简介: 王飞龙,男,高级工程师,2007年毕业于西北大学,获硕士学位,主要从事油气地球化学工作。地址:天津市滨海新区海川路2121号渤海石油管理局(邮编:300459)。E-mail:wangfl3@cnooc.com.cn。
更新日期/Last Update: 1900-01-01