平面压降梯度计算原则及其应用

冯月琳; 刘华; 宋国奇; 袁飞飞

doi:10.11781/sysydz201904598

平面压降梯度计算原则及其应用

doi: 10.11781/sysydz201904598

1. 中国石油大学(华东) 地球科学与技术学院, 山东青岛 266580;
2. 海洋矿产资源评价与探测技术国家功能实验室, 山东青岛 266071;
3. 中国石化胜利油田分公司勘探开发研究院, 山东东营 257001

基金项目:

国家科技重大专项（2016ZX05006-003）和中国石化胜利油田项目"渤南洼陷古近系压力梯度与油气运聚"（05N17011480）联合资助。

详细信息

作者简介:
冯月琳(1990-),女,博士研究生,从事油气藏形成与分布研究。E-mail:violinfyl@163.com。

中图分类号: TE122.1
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出版历程
- 收稿日期: 2018-09-10
- 修回日期: 2019-03-19
- 刊出日期: 2019-07-28

Calculation and application of plane pressure decrease gradient

1. School of Geosciences, China University of Petroleum, Qingdao, Shandong 266580, China;
2. Function Laboratory of Marine Geo-Resource Evaluation and Exploration Technology, Qingdao, Shandong 266071, China;
3. Research Institute of Petroleum Exploration and Development, Sinopec Shengli Oilfield Company, Shandong Dongying, 257001

摘要

摘要: 超压作为油气运移的动力条件，其变化速率与油气运移方式存在一定的关系。为定量判识超压盆地中油气运移方式，建立了应用地层压降梯度分析的计算思路与方法，并以渤海湾盆地沾化凹陷渤南洼陷为例进行了应用和探讨。以实测压力与单井预测压力为基础，对油气主要运移层系进行了压力分布特征分析，结合超压成因机制分区、沉积相变以及断层发育特征，分别对压力均匀降低区、沉积相变非均匀降低区和断层分割非均匀降低区采用不同的压降梯度计算思路进行计算。渤南洼陷深洼带的压降梯度最高，其次为断阶带、陡坡带以及缓坡带，且垂向连通的断层附近压降梯度较高，定量地解释了在超压控制下油气运移方式的变化特征，从而有效判识油气优势富集的位置。
- 压降梯度 /
- 运移动力 /
- 油气运移方式 /
- 渤南洼陷 /
- 渤海湾盆地
Abstract: As a driving force for oil and gas migration, the overpressure change rate has a relationship with oil and gas migration mode. In order to quantitatively identify the hydrocarbon migration modes in overpressure basins, some calculation ideas and methods of the application of formation pressure decrease gradient were established, and were applied in the Bonan Subsag, Zhanhua Sag, Bohai Bay Basin. Based on measured pressure and single well predicted pressure, the pressure distribution characteristics of the main hydrocarbon migration layer were analyzed. According to the characteristics of overpressure genesis, sedimentary facies and faults, different pressure drop gradient calculation methods were applied to the uniform pressure attenuation zone, the inhomogeneous pressure decrease zone of sedimentary facies transformation and the inhomogeneous pressure decrease zone of the faulted zone. The results show that the pressure decrease gradient is the highest in the deep sag of Bonan Subsag, followed by the fault step, steep slope and gentle slope zones, and the pressure decrease gradient near the vertically connected faults is higher. The variation characteristics of oil and gas migration mode under overpressure control were quantitatively explained so that the location of hydrocarbon enrichment can be effectively judged.
- pressure decrease gradient /
- driving force /
- hydrocarbon migration mode /
- Bonan Subsag /
- Bohai Bay Basin

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参考文献(28)

[1]	李明诚.石油与天然气运移[M].3版.北京:石油工业出版社,2004. LI Mingcheng.Petroleum migration[M].3rd ed.Beijing:Petro-leum Industry Press,2004.
[2]	郝芳.超压盆地生烃作用动力学与油气成藏机理[M].北京:科学出版社,2005. HAO Fang.Kinetics of hydrocarbon generation and mechanisms of petroleum accumulation in overpressured basins[M].Beijing:Science Press,2005.
[3]	解习农,李思田,刘晓峰.异常压力盆地流体动力学[M].武汉:中国地质大学出版社,2006. XIE Xinong,LI Sitian,LIU Xiaofeng.Basin fluid dynamics in abnormally pressured environments[M].Wuhan:China University of Geoscience Press,2006.
[4]	解习农,刘晓峰.超压盆地流体动力系统与油气运聚关系[J].矿物岩石地球化学通报,2000,19(2):103-108. XIE Xinong,LIU Xiaofeng.Related to black shale series fluid dynamic system and relationship with accumulation of hydrocarbon in overpressured basin[J].Bulletin of Mineralogy Petrology and Geochemistry,2000,19(2):103-108.
[5]	YAN Jianzhao,LUO Xiaorong,WANG Weimin,et al.An experimental study of secondary oil migration in a three-dimensional tilted porous medium[J].AAPG Bulletin,2012,96(5):773-788.
[6]	郝芳,蔡东升,邹华耀,等.渤中坳陷超压-构造活动联控型流体流动与油气快速成藏[J].地球科学(中国地质大学学报),2004,29(5):518-524. HAO Fang,CAI Dongsheng,ZOU Huayao,et al.Overpressure-tectonic activity controlled fluid flow and rapid petroleum accumulation in Bozhong Depression,Bohai Bay Basin[J].Earth Science(Journal of China University of Geosciences),2004,29(5):518-524.
[7]	WANG Chiyuen,XIE Xinong.Hydrofracturing and episodic fluid flow in shale-rich basins:a numerical study[J].AAPG Bulletin,1998,82(10):1857-1869.
[8]	李潍莲,刘震,夏庆龙,等.辽东湾凝析气田超压成因及向传递机制初探[J].地质科学,2008,43(2):377-388. LI Weilian,LIU Zhen,XIA Qinglong,et al.A preliminary study on origin and transmissive mechanisms of overpressure in the JZ20-2 condensate field in the Liaodong Bay[J].Chinese Journal of Geology,2008,43(2):377-388.
[9]	蒋有录,查明.石油天然气地质与勘探[M].北京:石油工业出版社,2006. JIANG Youlu,ZHA Ming.Petroleum & gas geology and exploration[M].Beijing:Petroleum Industry Press,2006.
[10]	SCHOWALTER T T.Mechanics of secondary hydrocarbon migration and entrapment[J].AAPG Bulletin,1979,63(5):723-760.
[11]	MCNEAL R P.Hydrodynamic entrapment of oil and gas in Bisti Field,San Juan County,New Mexico[J].AAPG Bulletin,1961,45(3):315-329.
[12]	HUNT J M.Generation and migration of petroleum from abnormally pressured fluid compartments[J].AAPG Bulletin,1990,74(1):1-12.
[13]	谢启超,刘震,李亮,等.渤南凹陷构造演化与超压形成及演化过程的关系分析[J].西安石油大学学报(自然科学版),2004,19(5):6-10. XIE Qichao,LIU Zhen,LI Liang,et al.Analysis of the relationship between tectonic evolution and the formation and evolution of overpressure in Bonan Sag[J].Journal of Xi'an Shiyou University(Natural Science Edition),2004,19(5):6-10.
[14]	SMITH D A.Theoretical considerations of sealing and non-sealing faults[J].AAPG Bulletin,1966,50(2):363-374.
[15]	BERG R R.Capillary pressures in stratigraphic traps[J].AAPG Bulletin,1975,59(6):939-956.
[16]	刘新社,席胜利,黄道军,等.鄂尔多斯盆地中生界石油二次运移动力条件[J].石油勘探与开发,2008,35(2):143-147. LIU Xinshe,XI Shengli,HUANG Daojun,et al.Dynamic conditions of Mesozoic petroleum secondary migration,Ordos Basin[J].Petroleum Exploration and Development,2008,35(2):143-147.
[17]	宋国奇,刘华,蒋有录,等.沾化凹陷渤南洼陷沙河街组原油成因类型及分布特征[J].石油实验地质,2014,36(1):33-38. SONG Guoqi,LIU Hua,JIANG Youlu,et al.Genetic types and distribution characteristics of crude oils from Shahejie Formation in Bonan Subsag,Zhanhua Sag,Jiyang Depression[J].Petro-leum Geology & Experiment,2014,36(1):33-38.
[18]	刘鹏,宋国奇,刘雅利,等.渤南洼陷沙四上亚段多类型沉积体系形成机制[J].中南大学学报(自然科学版),2014,45(9):3234-3243. LIU Peng,SONG Guoqi,LIU Yali,et al.Mechanism of depositional system in upper fourth member of Shahejie Formation in Bonan Sag[J].Journal of Central South University(Science and Technology),2014,45(9):3234-3243.
[19]	程桂玲.渤南洼陷沙三段中亚段9砂组储层特征及分布规律[J].油气地质与采收率,2009,16(3):54-55. CHENG Guiling.Reservoir characteristics and distribution of the ninth sand group in the middle Sha3 in Bonan Sag[J].Petro-leum Geology and Recovery Efficiency,2009,16(3):54-55.
[20]	刘华,蒋有录,谷国翠,等.沾化凹陷渤南洼陷古近系压力特征及成因机制探讨[J].中国石油大学学报(自然科学版),2013,37(4):46-51. LIU Hua,JIANG Youlu,GU Guocui,et al.Pressure characteristics and formation mechanisms of Paleogene in Bonan Sag,Zhanhua Depression[J].Journal of China University of Petro-leum,2013,37(4):46-51.
[21]	罗胜元.沾化凹陷渤南洼陷超压系统与油气成藏研究[D].北京:中国地质大学,2014. LUO Shengyuan.Study on the overpressure characteristic and hydrocarbon accumulation in Bonan Depression,Zhanhua Subbasin[D].Beijing:China University of Geosciences,2014.
[22]	罗胜元,何生,金秋月,等.渤南洼陷超压系统划分及结构特征[J].吉林大学学报(地球科学版),2015,45(1):37-51. LUO Shengyuan,HE Sheng,JIN Qiuyue,et al.Overpressure system classification and structure characteristic in Bonan Sag[J].Journal of Jilin University (Earth Science Edition),2015,45(1):37-51.
[23]	LIU Hua,JIANG Youlu,SONG Guoqi,et al.Overpressure characteristics and effects on hydrocarbon distribution in the Bonan Sag,Bohai Bay Basin,China[J].Journal of Petroleum Science and Engineering,2017,149:811-821.
[24]	康仁华,刘魁元,赵翠霞,等.济阳坳陷渤南洼陷古近系沙河街组沉积相[J].古地理学报,2002,4(4):19-29. KANG Renhua,LIU Kuiyuan,ZHAO Cuixia,et al.The sedimentary facies of the Shahejie Formation of Paleogene in Bonan Sag of Jiyang Depression[J].Journal of Palaeogeography,2002,4(4):19-29.
[25]	董春梅,宋春刚.渤海湾盆地渤南油田沙三段沉积微相研究[J].石油实验地质,2003,25(4):375-380. DONG Chunmei,SONG Chungang.Study on the sedimentary microfacies of the Sha-3 member in Bonan Oilfield[J].Petroleum Geo-logy & Experiment,2003,25(4):375-380.
[26]	董春梅.渤南洼陷下第三系沙三段高分辨率层序地层学研究[J].中国石油大学学报(自然科学版),2002,26(2):11-14. DONG Chunmei.High revolution sequence stratigraphy in third member of Shahejie Formation of the Lower Tertiary in Bonan Depression[J].Journal of the University of Petroleum,China,2002,26(2):11-14.
[27]	罗文生.渤南洼陷断裂活动与油气成藏关系研究[D].东营:中国石油大学(华东),2007. LUO Wensheng.Study on the relation between fault activity and hydrocarbon accumulation in Bonan Depression[F].Dongying:China University of Petroleum,2007.
[28]	罗文生,张善文,王永诗,等.渤南洼陷古近系-新近系断层活动与油气成藏[J].油气地质与采收率,2007,14(3):34-37. LUO Wensheng,ZHANG Shanwen,WANG Yongshi,et al.Fault activity and hydrocarbon accumulation in Tertiary of Bonan Subsag[J].Petroleum Geology and Recovery Efficiency,2007,14(3):34-37.