[1]李 浩 胡 勇 别旭伟 潘广明 聂玲玲.渤海南堡35-2油田原油物性差异地质成因分析[J].三才(TM)期刊,2019,29(05):53-61.[doi:10.11935/j.issn.1673-1506.2019.05.006]
 LI Hao HU Yong BIE Xuwei PAN Guangming NIE Lingling.Geological genetic analysis on the physical properties difference of crude oil in NB35-2 oilfield, Bohai sea[J].HISTORICAL RESEARCH IN ANHUI,2019,29(05):53-61.[doi:10.11935/j.issn.1673-1506.2019.05.006]
点击复制

渤海南堡35-2油田原油物性差异地质成因分析()
分享到:

《三才(TM)期刊》[ISSN:1008-0341/CN:37-1280/R]

卷:
第29卷
期数:
2019年05期
页码:
53-61
栏目:
油气勘探
出版日期:
2019-10-01

文章信息/Info

Title:
Geological genetic analysis on the physical properties difference of crude oil in NB35-2 oilfield, Bohai sea
文章编号:
1673-1506(2019)05-0053-09
作者:
李 浩 胡 勇 别旭伟 潘广明 聂玲玲
(中海石油(中国)有限公司天津分公司 天津 300452)
Author(s):
LI Hao HU Yong BIE Xuwei PAN Guangming NIE Lingling
(CNOOC China Limited, Tianjin Branch, Tianjin 300452, China)
关键词:
南堡35-2油田 原油物性差异 地质成因 运移距离 地层温度 断层活动速率 油水过渡带
Keywords:
NB35-2 oilfield difference on physical properties of crude oil geological geneses migration distance formation temperature fault activity rate oil-water transition zone
分类号:
TE122.1
DOI:
10.11935/j.issn.1673-1506.2019.05.006
文献标志码:
A
摘要:
渤海南堡35-2油田各区原油物性平面差异较大。S-1区为轻质油油藏,油质最轻; 南区为重质稠油油藏,地层原油黏度和密度从东南向西北逐渐增大; 断块区地层原油黏度和密度介于南区和S-1区之间,油质由南向北逐渐变重。为明确原油物性差异的地质成因,以油气成藏理论和原油稠化机制为分析手段进行综合研究,认为该油田各区原油物性差异并非是不同油源造成的,并且烃源岩有机成熟度高,原始油品好,形成轻质油藏概率大; 而稠油油藏是后期改造作用形成的,同一油源运移距离越远,受到生物降解、水洗等稠化作用越严重,原油密度和黏度容易增大。微生物降解受地层温度、断层活动速率和油水层空间位置关系控制:地层内部温度异常高,不易发生生物降解,原油密度和黏度越小; 断层活动速率越低,地层原油黏度和密度越小; 油水过渡带范围越大,生物降解程度越大,原油黏度和密度越大。同时,预测斜坡区原油黏度与密度和断块区南部相似,为该区优质储量潜力区。
Abstract:
The physical properties of crude oil in different areas of NB35-2 oilfield in Bohai sea are quite different on the plane. The S-1 area is a light oil reservoir with the lightest oil gravity; the southern area is a heavy oil reservoir, and the in-situ crude oil viscosity and density increase gradually from the southeast to the northwest; the in-situ viscosity and density of crude oil in the fault block area are between that of the southern area and S-1 area, and the oil gravity gradually increases from south to north. In order to clarify the geological geneses of crude oil physical properties difference, a comprehensive study was carried out by means of hydrocarbons accumulation theory and crude oil thickening mechanism, and it was believed that the difference on crude oil physical properties of different areas was not caused by different oil sources. Moreover, the higher the maturity of organic matters in source rocks, the better the original oil quality will be, and the larger the probability of forming a light oil reservoir. The heavy oil reservoir was formed by the modification in the late period. The farther the migration distance of the same oil source is, the more serious the thickening effect of biodegradation and water washing, and the larger crude oil density and viscosity will be. Microbial degradation is controlled by formation temperature, fault activity rate and the spatial position of oil-water layer: The abnormally high internal temperature of formation hinders the biodegradation, and the density and viscosity of crude oil are smaller. The lower the activity rate of fault, the smaller the in-situ viscosity and density of crude oil; the larger the scope of transition zone, the greater the degree of biodegradation, and the larger the viscosity and density of crude oil will be. At the same time, it was predicted that the viscosity and density of crude oil in the slope area are similar to those in the southern part of the fault block, which is a potential area of high-quality reserves in this area.

参考文献/References:

[1] 郭永华,周心怀,李建平,等.渤海海域新近系稠油油藏原油特征及形成机制[J].石油与天然气地质,2010,31(3):375-380,385. GUO Yonghua,ZHOU Xinhuai,LI Jianping,et al. Crude features and origins of the Neogene heavy oil reservoirs in the Bohai Bay[J].Oil & Gas Geology,2010,31(3):375-380,385. [2] 彭永灿,李映艳,马辉树,等.吉木萨尔凹陷芦草沟组致密油藏原油性质影响因素[J].新疆石油地质,2015,36(6):656-659. PENG Yongcan,LI Yingyan,MA Huishu,et al.Influencing factors of crude oil properties in Lucaogou tight reservoir in Jimsar sag,eastern Junggar basin[J].Xinjiang Petroleum Geology,2015,36(6):656-659. [3] 邓运华.渤海油区稠油成因探讨[J].中国海上油气,2006,18(6):361-364,371. DENG Yunhua.A discussion on the origin of heavy oil in Bohai oil province[J].China Offshore Oil and Gas,2006,18(6):361-364,371. [4] 韩如冰,田昌炳,周家胜,等.苏丹Muglad盆地下白垩统原油破坏作用及黏度变化规律:以Fula凹陷Jake south 油田Bentiu油藏为例[J].中国海上油气,2016,28(6):9-14.DOI:10.11935/j.issn.1673-1506.2016.06.002. HAN Rubing,TIAN Changbing,ZHOU Jiasheng,et al.The degradation of petroleum in Lower Cretaceous of Muglad basin and the variation regularity of its viscosity:A case of Bentiu reservoir in Jake South oilfield,Fula sag,Sudan[J].China Offshore Oil and Gas,2016,28(6):9-14.DOI:10.11935/j.issn.1673-1506.2016.06.002. [5] 李宇平,范小军.西藏地区伦坡拉盆地牛堡组原油稠化地质成因[J].油气地质与采收率,2015,22(6):32-35,46. LI Yuping,FAN Xiaojun.Geological origin of crude oil thickening in the reservoir of Niubao Formation in Lunpola basin,Tibet[J].Petroleum Geology and Recovery Efficiency,2015,22(6):32-35,46. [6] 王飞龙.渤海海域南堡35-2油田油源研究[J].石油与天然气学报,2014,36(12):33-43. WANG Feilong.Study of oil sources in NB35-2 oilfield in Bohai sea area[J].Journal of Oil and Technology,2014,36(12):33-43. [7] 王培荣,张大江,宋孚庆,等.区分渤中坳陷三套烃源岩的地球化学参数组合[J].中国海上油气,2004,16(3):157-160. WANG Peirong,ZHANG Dajiang,SONG Fuqing,et al.The comprehensive geochemical parameters for distinguishing three sets of source rock in Bozhong depression[J].China Offshore Oil and Gas,2004,16(3):157-160. [8] 杨永才,李友川.渤海湾盆地渤中凹陷烃源岩地球化学与分布特征[J].矿物岩石,2012,32(4):65-72. YANG Yongcai,LI Youchuan.The geochemical characteristics and distribution of source rocks of the Bozhong sag in the Bohai bay basin[J].Journal of Mineralogy and Petrology,2012,32(4):65-72. [9] 戴俊生,李理,陆克政,等.渤海湾盆地构造对油气系统的控制[J].地质论评,1999,45(2):202-208. DAI Junsheng,LI Li,LU Kezheng,et al.The control of tectonism on the petroleum systems in the bohai bay basin[J].Geological Review,1999,45(2):202-208. [10] 王应斌,黄雷,刘廷海.渤海新构造运动主要特征与构造样式[J].中国海上油气,2012,24(增刊1):6-10. WANG Yingbin,HUANG Lei,LIU Tinghai.The main characteristics and structural styles of Bohai new tectonism[J].China Offshore Oil and Gas,2012,24(S1):6-10. [11] 池英柳,赵文智.渤海湾盆地新生代走滑构造与油气聚集[J].石油学报,2000,21(2):14-20. CHI Yingliu,ZHAO Wenzhi.Strike-slip deformation during the Genozoic and its influence on hydrocarbon accumulation in the Bohai Bay Basin[J].Acta Petrolei Sinica,2000,21(2):14-20. [12] 米立军.新构造运动与渤海海域上第三系大型油气田[J].中国海上油气(地质),2001,15(1):21-28. MI Lijun.Neotectonism and major Neogene oil and gas fields in Bohai Sea[J].China Offshore Oil and Gas(Geology),2001,15(1):21-28. [13] 薛永安,韦阿娟,彭靖淞,等.渤海湾盆地渤海海域大中型油田成藏模式和规律[J].中国海上油气,2016,28(3):10-19.DOI:10.11935/j.issn.1673-1506.2016.03.002. XUE Yongan,WEI Ajuan,PENG Jingsong,et al.Accumulation models and regularities of large-middle scale oilfields in Bohai sea,Bohai Bay basin[J].China Offshore Oil and Gas,2016,28(3):10-19.DOI:10.11935/j.issn.1673-1506.2016.03.002. [14] 宋宁,闫义,张金川,等.东台坳陷现今地温场特征与油藏分布关系[J].大地构造与成矿学,2013,37(1):164-171. SONG Ning,YAN Yi,ZHANG Jinchuan,et al.Present-day geothermal field and implications for hydrocarbon reservoirs in the Dongtai Depression,Eastern China[J].Geotectonica et Metallogenia,2013,37(1):164-171. [15] 何争光,刘池洋,赵俊峰,等.华北克拉通南部地区现今地温场特征及其地质意义[J].地质论评,2012,55(3):428-434. HE Zhengguang,LIU Chiyang,ZHAO Junfeng,et al.Geological significance in southern area of the North China craton[J].Geological Review,2012,55(3):428-434. [16] 武彦,刘震,代一丁,等.珠江口盆地珠一坳陷地温-地压系统特征及其对油气分布的影响[J].现代地质,2013,27(6):1407-1413. WU Yan,LIU Zhen,DAI Yiding,et al.Characteristics of geotemperature-pressure system and their influence on hydrocarbon distribution in Zhuyi depression,Pearl River Mouth basin[J].Geoscience,2013,27(6):1407-1413. [17] 李浩,聂玲玲,张彩旗,等.渤海湾盆地A稠油油田M层油水界面主控因素[J].新疆石油地质,2017,38(4):455-459. LI Hao,NIE Lingling,ZHANG Caiqi,et al.Controlling factors of oil-water contact in M layer of heavy oil field A,Bohai Bay basin[J].Xinjiang Petroleum Geology,2017,38(4):455-459. [18] 段传丽,陈践发.生物降解原油的地球化学特征及其意义[J].天然气地球科学,2007,18(2):278-283. DUAN Chuanli,CHEN Jianfa.Geochemical characteristics of biodegraded crude oil and their significances[J].Natural Gas Geoscience,2007,18(2):278-283. [19] CONNAN J.Biodegradation of crude oils in reservoir[G]∥BROOKS J,WELTE D H.Advance in Petroleum Geochemistry(Volume 1).London:Academic Press,1984:299-335. [20] 王冠民,付尧,张健,等.渤中凹陷古近纪控盆断裂的活动速率与沉积响应[J].海洋地质与第四纪地质,2016,36(4):85-92. WANG Guanmin,FU Yao,ZHANG Jian,et al.Mobility of Paleogene basin-controlling faults in the Bozhong sag and depositional responses[J].Marine Geology & Quaternary Geology,2016,36(4):85-92. [21] 史冠中,王华,徐备,等.南堡凹陷柏各庄断层活动特征及对沉积的控制[J].北京大学学报(自然科学版),2011,47(1):85-90. SHI Guanzhong,WANG Hua,XU Bei,et al.Activity of Baigezhuang Fault of Nanpu depression and its controlling on sedimentation[J].Acta Scientiarum Naturalium Universitatis Pekinensis,2011,47(1):85-90. [22] PETERS K E,MOLOWAN J M.The biomarker guide:Interpreting molecular fossils in petroleum and ancient sediments[M].New Jersey:Prentice Hall Inc,1993.

备注/Memo

备注/Memo:
* “十三五”国家科技重大专项课题“渤海油田加密调整及提高采收率油藏工程技术示范(编号:2016ZX05058-001-008)”部分研究成果。 第一作者简介: 李浩,男,硕士,工程师,研究方向为沉积储层及油气勘探。地址:天津市滨海新区海川路2121号渤海石油管理局B座(邮编:300452)。E-mail:lihao17@cnooc.com.cn。
更新日期/Last Update: 2019-10-01