岩浆侵入作用对不同成熟度烃源岩热演化的影响——以方正断陷和绥滨坳陷为例

冯禄; 曾花森; 王洪伟

doi:10.11781/sysydz201805724

岩浆侵入作用对不同成熟度烃源岩热演化的影响——以方正断陷和绥滨坳陷为例

doi: 10.11781/sysydz201805724

1. 北京大学地球与空间科学学院, 北京 100871;
2. 大庆油田有限责任公司勘探开发研究院, 黑龙江大庆 163712

基金项目:

国家重点基础研究发展计划（973计划）“火山岩油气藏分布规律与资源预测”（2009CB219308）资助。

详细信息

作者简介:
冯禄(1997-),女,石油地质与地球化学专业。E-mail:lisafeng@pku.edu.cn。

中图分类号: TE122.112
计量
- 文章访问数: 1426
- HTML全文浏览量: 171
- PDF下载量: 101
- 被引次数: 0
出版历程
- 收稿日期: 2018-03-06
- 修回日期: 2018-08-01
- 刊出日期: 2018-09-28

Impact of igneous intrusion on the thermal evolution of source rocks with different maturities: a case study of Fangzheng Fault Depression and Suibin Sag in north-eastern China

1. School of Earth and Space Sciences, Peking University, Beijing 100871, China;
2. Exploration and Development Research Institute, Daqing Oilfield Company Ltd., Daqing, Heilongjiang 163712, China

摘要

摘要: 为研究岩浆侵入体对不同成熟度烃源岩有机质热演化的影响程度和范围，对黑龙江东部方正断陷和绥滨坳陷中的2口探井进行了系统取样与分析，基于岩石地球化学指标，研究了受岩浆侵入影响的烃源岩有机质成熟度及生烃特征在纵向上的变化。结果表明，岩浆侵入体的热烘烤范围与围岩热成熟演化阶段或成岩阶段密切相关。岩浆侵入时烃源岩处于早成岩阶段（未熟—低熟阶段），岩石比热容高、热导率低，岩浆热烘烤范围较小，影响范围平均是侵入体厚度的1倍左右，R_o最高可达2.5%。岩浆侵入时烃源岩处于中成岩晚期—晚成岩阶段（成熟—高成熟阶段），岩石比热容低、热导率高，岩浆热烘烤范围大，影响范围平均是侵入体厚度的2倍左右，R_o最大值约为4.0%。
- 热烘烤作用 /
- 岩浆侵入体 /
- 烃源岩成熟度 /
- 生烃潜力 /
- 方正断陷 /
- 绥滨坳陷
Abstract: Two intruded sections, respectively from the Fangzheng Fault Depression and the Suibin Sag in the north-eastern China, were continuously sampled and geochemically analyzed in order to decipher the thermal impact of igneous intrusion on source rocks with different thermal maturities. The changes of organic matter maturity and hydrocarbon generation characteristics of source rocks affected by igneous intrusion were studied according to the geochemical indicators of the rocks. The results showed that the thermal impact of igneous intrusion is distinguishable with sample organic maturity or diagenesis phase at the time of intrusion. When a source rock in its early diagenesis phase with a low organic maturity is intruded by magma, the thermal aureole is on average the thickness of the intrusion body and the maximum enhanced maturity can be up to 2.5% R_o. In contrast, when a source rock in its middle-late diagenesis phase with a high organic maturity is intruded, the thermal aureole is on average twice the thickness of intrusion body and the maximum enhanced organic maturity can be up to 4.0% R_o. It was suggested that in the early diagenesis phase, source rock bears a high specific heat capacity and a low thermal conductivity, and the thermal impact is less; whereas in the middle-late diagenesis phase, source rock bears a low specific heat capacity and a high thermal conductivity, and the thermal impact is greater.
- baking effect /
- igneous intrusion /
- organic maturity /
- hydrocarbon generation potential /
- Fangzheng Fault Depression /
- Suibin Sag

HTML全文

参考文献(19)

[1]	DOW W G..Kerogen studies and geological interpretations[J].Journal of Geochemical Exploration,1977,7:79-99.
[2]	陈荣书,何生,王青玲,等.岩浆活动对有机质成熟作用的影响初探:以冀中葛渔城-文安地区为例[J].石油勘探与开发,1989(1):29-37. CHENG Rongshu,HE Sheng,WANG Qingling,et al.A preliminary discussion of magma activity on the maturation of organic matter:taking Geyucheng-Wenan area of Hebei Province as an example[J].Petroleum Expoloration and Development,1989(1):29-37.
[3]	SIMONEIT B R T,BRENNER S,PETERS K E,et al.Thermal alteration of Cretaceous black shale by basaltic intrusions in the eastern Atlantic[J].Nature,1978,273(5663):501-504.
[4]	OTHMAN R,AROURI K R,WARD C R,et al.Oil generation by igneous intrusions in the northern Gunnedah Basin,Australia[J].Organic Geochemistry,2001,32(10):1219-1232.
[5]	曹学伟,胡文瑄,金之钧,等.临盘油田夏38井区辉绿岩热效应对成烃作用的影响[J].石油与天然气地质,2005,26(3):317-322. CAO Xuewei,HU Wenxuan,JIN Zhijun,et al.Influences of thermal effect of diabase intrusion on hydrocarbon generation in Xia 38 wellblock Linpan Oilfield[J].Oil & Gas Geology,2005,26(3):317-322.
[6]	CHEN Zhenyan,YAN Huo,LI Junsheng,et al.Relationship between Tertiary volcanic rocks and hydrocarbons in the Liaohe Basin,People's Republic of China[J].AAPG Bulletin,1999,83(6):1004-1014.
[7]	刘兴旺,王晓锋,史宝光,等.异常地热对烃源岩生烃的影响:以三塘湖盆地辉绿岩侵入体为例[J].沉积学报,2011,29(4):809-814. LIU Xingwang,WANG Xiaofeng,SHI Baoguang,et al.Influence of abnormal geothermal on hydrocarbon-generation:case study on the diabase intrusion of the Santanghu Basin[J].Acta Sedimentologica Sinica,2011,29(4):809-814.
[8]	万从礼,金强.东营凹陷纯西辉长岩对烃源岩异常生排烃作用研究[J].长安大学学报(地球科学版),2003,25(1):20-25. WANG Congli,JIN Qiang.Study on exceptional hydrocarbons gene-rating and eliminating of gabbros to source rocks in Chunxi area of Dongying Depression[J].Journal of Chang'an University (Earth Science Edition),2003,25(1):20-25.
[9]	李亚辉.高邮凹陷北斜坡辉绿岩与油气成藏[J].地质力学学报,2000,6(2):17-22. LI Yahui.Diabase and hydrocarbon reservoir formation on the northern slope of Gaoyou Sag[J].Journal of Geomechanics,2000,6(2):17-22.
[10]	王民,卢双舫,薛海涛,等.岩浆侵入体对有机质生烃(成熟)作用的影响及数值模拟[J].岩石学报,2010,26(1):177-184. WANG Min,LU Shuangfang,XUE Haitao,et al.The effects of magmatic intrusions on the maturation of organic matter and its numerical simualtion[J].Acta Petrologica Sinica,2010,26(1):177-184.
[11]	田文广,姜振学,庞雄奇,等.岩浆活动热模拟及其对烃源岩热演化作用模式研究[J].西南石油学院学报,2005,27(1):12-16. TIAN Wenguang,JIANG Zhengxue,PANG Xiongqi,et al.Study of the thermal modeling of magma intrusion and its effects on the thermal evolution patterns of source rocks[J].Journal of Southwest Petroleum Institute,2005,27(1):12-16.
[12]	FJELDSKAAR W,HELSET H M,JOHANSEN H,et al.Thermal modelling of magmatic intrusions in the Gjallar Ridge,Norwegian Sea:implications for vitrinite reflectance and hydrocarbon maturation[J].Basin Research,2008,20(1):143-159.
[13]	GALUSHKIN Y I.Thermal effects of igneous intrusions on maturity of organic matter:a possible mechanism of intrusion[J].Organic Geochemistry,1997,26(11/12):645-658.
[14]	王满,王英伟,薛林福.岩浆侵入对围岩中有机质成熟度影响的有限元模拟[J].断块油气田,2012,19(2):172-176. WANG Man,WANG Yingwei,XUE Linfu.Finite element simulation of effect of magmatic intrusion on maturity of organic matter in surrounding rock[J].Fault-Block Oil & Gas Field,2012,19(2):172-176.
[15]	王民,王岩,卢双舫,等.岩浆侵入体热作用对烃源岩生烃影响的定量表征:以松辽盆地南部英台断陷为例[J].断块油气田,2014,21(2):171-175. WANG Min,WANG Yan,LU Shuangfang,et al.Thermal influence of magma intrusion on hydrocarbon generation of source rock:taking South Yingtai Fault Depression of Songliao Basin as an example[J].Fault-Block Oil & Gas Field,2014,21(2):171-175.
[16]	吴峻,陈孔全,张锋,等.苏北盆地溱潼凹陷浅成侵入岩接触变质带储层特征及控制因素[J].石油实验地质,2018,40(3):323-329. WU Jun,CHEN Kongquan,ZHANG Feng,et al.Reservoir characteristics and controlling factors in the contact metamorphic zone of hypabyssal intrusive rocks in the Qintong Sag, Northern Jiangsu Basin[J].Petroleum Geology & Experiment,2018,40(3):323-329.
[17]	赵迎冬,甘华军,时阳,等.北部湾盆地福山凹陷异常地温特征及其对油气藏的影响[J].油气地质与采收率,2016,23(3):40-46. ZHAO Yingdong,GAN Huajun,SHI Yang,et al.Characteristics of geothermal anomaly and its effect on oil and gas reservoir in Fushan Sag of Beibuwan Basin[J].Petroleum Geology & Reco-very Efficiency,2016,23(3):40-46.
[18]	邱楠生.中国西北部盆地岩石热导率和生热率特征[J].地质科学,2002,37(2):196-206. QIU Nansheng.Characters of thermal conductivity and radiogenic heat production rate in basins of Northwest China[J].Chinese Journal of Geology,2002,37(2):196-206.
[19]	朱占平,刘立,马瑞,等.黑龙江省鸡西盆地基性岩⁴⁰Ar/³⁹Ar同位素定年及其地质意义[J].吉林大学学报(地球科学版),2009,39(2):238-243. ZHU Zhanping,LIU Li,MA Rui,et al.⁴⁰Ar/³⁹Ar isotopic dating and geological significance of mafic rocks from the Jixi Basin,Heilongjiang Province[J].Journal of Jilin University (Earth Science Edition),2009,39(2):238-243.