«上一篇/Previous Article|本期目录/Table of Contents|下一篇/Next Article»

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

卷:

第40卷

期数:

2018年第02期

页码:

176-185

栏目:

基础地质与矿产地质

出版日期:

2018-03-15

文章信息/Info

Title:

Genetic Mechanism of Paleogene Primary Heavy Oil in Sanhecun Sag of Jiyang Depression

文章编号:

1672-6561(2018)02-0176-10

作者:

高长海; 张新征; 王兴谋; 张云银; 李豫源

1.中国石油大学(华东) 地球科学与技术学院，山东 青岛 266580； 2.中石化胜利石油工程有限公司 地质录井公司，山东 东营 257064； 3.中国石化胜利油田分公司物探研究院，山东 东营 257022

Author(s):

GAO Chang-hai;  ZHANG Xin-zheng;  WANG Xing-mou;  ZHANG Yun-yin;  LI Yu-yuan

1. School of Geosciences, China University of Petroleum, Qingdao 266580, Shandong, China;2. Geological Logging Company, SINOPEC Shengli Petroleum Engineering Co. Ltd., Dongying 257064, Shandong, China; 3. Geophysical Research Institute, SINOPEC Shengli Oilfield Branch Company, Dongying 257022, Shandong, China

关键词:

地球化学; 原生型稠油; 低熟油; 热化学硫酸盐还原作用; 生物降解作用; 济阳坳陷

Keywords:

geochemistry;  primary heavy oil;  low-mature oil;  thermochemical sulfate reduction;  biodegradation;  Jiyang depression

分类号:

TE122.1；P618.130.1

DOI:

-

文献标志码:

A

摘要:

济阳坳陷三合村洼陷古近系发育稠油，但其成因机制尚不明确，制约了该区稠油的勘探与开发。通过42个稠油样品的物性、族组成以及地球化学分析，结合烃源岩生排烃史以及原油运聚特征，探讨了三合村洼陷古近系稠油的成因机制。结果表明：渤南洼陷沙四段烃源岩具备低熟油的生烃条件；古近纪东营组沉积末期，沙四段膏盐湖相烃源岩进入低成熟演化阶段，咸化还原环境的早期生烃作用促使其生成低熟油；热化学硫酸盐还原作用造成原油密度、黏度、硫含量增大，这些原油通过古近系与前第三系之间的不整合输导层近距离运移至三合村洼陷古近系沙三段地层圈闭中聚集成藏，由于埋藏较浅，后期遭受轻微生物降解作用而进一步稠化。综上所述，三合村洼陷古近系稠油为低熟油经热化学硫酸盐还原作用、生物降解作用稠变而成，属于原生蚀变型稠油。

Abstract:

The Paleogene heavy oil develops in Sanhecun sag of Jiyang depression, and the misunderstanding of genetic mechanism leads to the restriction of further exploration and development. The physical properties, group composition and geochemistry characteristics of 42 heavy oil samples were analyzed; combined with the history of hydrocarbon generation and expulsion, and the characteristics of hydrocarbon migration and accumulation, the genetic mechanism of Paleogene heavy oil was discussed. The results show that the source rocks of member 4 of Shahejie Formation in Bonan sag have the condition of hydrocarbon generation with low-mature oil; at the end of Dongying period, the salt-lake facies source rocks of member 4 of Shahejie Formation enter into the low-mature evolution stage, and form low-mature oils through the early-stage hydrocarbon generations of salt reduction environment; the thermochemical sulfate reduction causes the increase of density, viscosity and sulfur content of low-mature oils, and the oils migrate at a short distance into Sanhecun sag through the unconformity carrier between Palaeogene and pre-Tertiary, and then accumulate in the stratigraphic overlap traps of member 3 of Palaeogene Shahejie Formation, and suffer from slight biodegradation due to low embedded depth, which causes further oil densification. In conclusion, the Paleogene heavy oils in Sanhecun sag belong to the primary altered type, which is mainly generated from densification of thermochemical sulfate reduction and biodegradation on low-mature oils.

参考文献/References:

-

相似文献/References:

[1]高林,陈斌.鲁西地块济南辉长岩岩石学、地球化学和Os-Nd-Sr同位素研究[J].地球科学与环境学报,2013,35(02):19.
　GAO Lin,CHEN Bin.Study on Petrology, Geochemistry and Os-Nd-Sr Isotopes of Jinan Gabbro in Luxi Block[J].Journal of Earth Sciences and Environment,2013,35(02):19.
[2]要梅娟,刘家军,翟德高,等.内蒙古道伦达坝铜多金属矿床微量元素地球化学特征[J].地球科学与环境学报,2013,35(01):24.
　YAO Mei-juan,LIU Jia-jun,ZHAI De-gao,et al.Geochemistry Characteristic of Trace Element in Daolundaba Copper-polymetallic Deposit of Inner Mongolia[J].Journal of Earth Sciences and Environment,2013,35(02):24.
[3]李云峰,李波,周亚楠,等.潜水质量安全评价指标体系的研建:以西安为例[J].地球科学与环境学报,2013,35(01):80.
　LI Yun-feng,LI Bo,ZHOU Ya-nan,et al.Establishment of Index System to Evaluate the Safety of Phreatic Water Quality: Taking Xi’an as an Example[J].Journal of Earth Sciences and Environment,2013,35(02):80.
[4]冯冲,邹华耀,郭彤楼,等.川东北及邻区上二叠统吴家坪组烃源岩评价[J].地球科学与环境学报,2013,35(04):18.
　FENG Chong,ZOU Hua-yao,GUO Tong-lou,et al.Evaluation of Source Rocks in Upper Permian Wujiaping Formation of Northeast Sichuan and Its Adjacent Area[J].Journal of Earth Sciences and Environment,2013,35(02):18.
[5]李艳,张秀颀,逯晓喻,等.松辽盆地上古生界烃源岩特征及有效性分析[J].地球科学与环境学报,2013,35(04):39.
　LI Yan,ZHANG Xiu-qi,LU Xiao-yu,et al.Characteristics and Validity Analysis of Hydrocarbon Source Rocks of Upper Paleozoic in Songliao Basin[J].Journal of Earth Sciences and Environment,2013,35(02):39.
[6]宁培松,龙群,程婷,等.鲁西地块晚中生代中—基性岩地球化学和Sr-Nd-Pb同位素组成特征[J].地球科学与环境学报,2013,35(04):62.
　NING Pei-song,LONG Qun,CHENG Ting,et al.Geochemistry and Sr-Nd-Pb Isotopic Composition of Late Mesozoic Intermediate-basic Rock in Western Shandong Block[J].Journal of Earth Sciences and Environment,2013,35(02):62.
[7]张嘉升,潘爱芳,樊会民,等.陕西柞水地区金盆梁金矿区水系沉积物地球化学特征与找矿方向[J].地球科学与环境学报,2014,36(04):55.
　ZHANG Jia-sheng,PAN Ai-fang,FAN Hui-min,et al.Geochemical Characteristics of Stream Sediment in Jinpenliang Gold Mining Area of ZhashuiArea, Shaanxi and Its Prospecting Direction[J].Journal of Earth Sciences and Environment,2014,36(02):55.
[8]曹军,钟宁宁,邓运华,等.下刚果盆地海相烃源岩地球化学特征、成因及其发育的控制因素[J].地球科学与环境学报,2014,36(04):87.
　CAO Jun,ZHONG Ning-ning,DENG Yun-hua,et al.Geochemical Characteristics, Origin and Factors Controlling Formation of Marine Source Rock in Lower Congo Basin[J].Journal of Earth Sciences and Environment,2014,36(02):87.
[9]姜常义,王子玺,杜玮,等.柴达木地块北缘南北沟岩体地球化学特征及成矿前景[J].地球科学与环境学报,2015,37(01):12.
　JIANG Chang-yi,WANG Zi-xi,DU Wei.Geochemical Characteristics of Nanbeigou Intrusion in the Northern Margin of Qaidam Massif and Its Prospecting Potential[J].Journal of Earth Sciences and Environment,2015,37(02):12.
[10]刘成林,徐韵,马寅生,等.柴达木盆地北部滩间山群碳沥青地球化学特征与成因[J].地球科学与环境学报,2015,37(01):85.
　LIU Cheng-lin,XU Yun,MA Yin-sheng,et al.Geochemical Characteristics and Origin of Anthraxolite of Tanjianshan Group in the Northern of Qaidam Basin[J].Journal of Earth Sciences and Environment,2015,37(02):85.

备注/Memo

备注/Memo:

收稿日期:2018-01-09;修回日期:2018-02-05  
基金项目:国家科技重大专项项目(2016ZX05006-007);山东省自然科学基金项目(ZR2017MD028);中国石化科技攻关项目(P15084)
作者简介:高长海(1977-),男,山东东营人,副教授,工学博士,E-mail:gch260725@163.com。

常用功能

更新日期/Last Update: 2018-04-19