Logging response characteristics and formation process of flushed zone in the Orinoco heavy oil belt, Venezuela

CHEN Heping; CHEN Hao; LI Changwen; WANG Yusheng; LI Jianping; HUANG Rui; TIAN Congcong; HOU Qiuyuan

doi:10.11698/PED.2020.03.10

Petroleum Exploration and Development >

2020 , Vol. 47 >Issue 3: 547 - 554

DOI: https://doi.org/10.11698/PED.2020.03.10

PETROLEUM EXPLORATION

Logging response characteristics and formation process of flushed zone in the Orinoco heavy oil belt, Venezuela

CHEN Heping ,
CHEN Hao ,
LI Changwen ,
WANG Yusheng ,
LI Jianping ,
HUANG Rui ,
TIAN Congcong ,
HOU Qiuyuan

Expand

1. PetroChina Research Institute of Petroleum Exploration & Development, Beijing 100083, China;
2. International Division, China Petroleum Logging CO. LTD., CNPC, Beijing 102200, China;
3. China National Oil and Gas Exploration and Development Corporation Ltd., Beijing 100034, China

Received date: 2019-12-28

Online published: 2020-05-19

Fold

Abstract

The origins and logging responses of flushed zones in some blocks of Orinoco heavy oil belt, Venezuela are still unclear. To solve this issue, we examined the conventional logging, nuclear magnetic resonance logging, fluid viscosity, core analysis and oil field production data comprehensively to find out the logging responses and origins of the flushed zones. The results show that the main reason for the formation of flushed zone is surface water invasion, which leads to crude oil densification. The crude oil densification produces asphalt membrane (asphalt crust) which wraps up free water, causing special logging responses of the flushed zones. According to the different logging responses, we classified the flushed zones into two types and analyzed the formation processes of the two types of flushed zones. According to the characteristics of logging curves after water flush, we confirmed that the water flush began earlier than the reservoir accumulation.

Key words： flushed zone; asphalt crust; crude oil thickening; freshwater leaching; foam oil flow; Orinoco heavy oil belt

Cite this article

CHEN Heping , CHEN Hao , LI Changwen , WANG Yusheng , LI Jianping , HUANG Rui , TIAN Congcong , HOU Qiuyuan . Logging response characteristics and formation process of flushed zone in the Orinoco heavy oil belt, Venezuela[J]. Petroleum Exploration and Development, 2020 , 47(3) : 547 -554 . DOI: 10.11698/PED.2020.03.10

References

[1] 穆龙新. 委内瑞拉奥里诺科重油带开发现状与特点[J]. 石油勘探与开发, 2010, 37(3): 338-343.
MU Longxin.Development status and characteristics of Orinoco heavy oil belt in Venezuela[J]. Petroleum Exploration and Development, 2010, 37(3): 338-343.
[2] SMITH G E.Fluid flow and sand production in heavy-oil reservoirs under solution-gas drive[J]. SPE Production Engineering, 1988, 3(2): 169-180.
[3] SARMA H, MAINI B.Role of solution gas in primary production of heavy oils[R]. Houston: SPE Latin America Petroleum Engineering, 1992.
[4] SHENG J J, MAINI B B, HAYES R E, et al.Critical review of foamy oil flow[J]. Transport in Porous Media, 1999, 35(2): 157-187.
[5] 吴永彬, 李晓玲, 赵欣, 等. 泡沫油稳定性主控因素实验研究[J]. 现代地质, 2012, 26(1): 186-192.
WU Yongbin, LI Xiaoling, ZHAO Xin, et al.Experimental study on main controlling factors of foam oil stability[J]. Geoscience, 2012, 26(1): 186-192.
[6] 李文会, 刘鹏程, 吴永彬. 定量化评价稠油油藏泡沫油采收率影响因素[J]. 科学技术与工程, 2015, 15(8): 47-52.
LI Wenhui, LIU Pengcheng, WU Yongbin.Quantitative evaluation of factors affecting foam oil recovery in heavy oil reservoirs[J]. Science Technology and Engineering, 2015, 15(8): 47-52.
[7] MARCOS J, PARDO E, CASAS J, et al.Static and dynamic models of formation water in Sincor Area, Orinoco Belt, Venezuela[R]. SPE 107378, 2007.
[8] 侯君, 戴国汗, 危杰, 等. 委内瑞拉奥里诺科重油带油藏特征及开发潜力[J]. 石油实验地质, 2014, 36(6): 725-729.
HOU Jun, DAI Guohan, WEI Jie, et al.Characteristics and development potential of Orinoco heavy oil belt reservoir in Venezuela[J]. Petroleum Experimental Geology, 2014, 36(6): 725-729.
[9] 陈惠, 李长文, 王玉生, 等. 委内瑞拉奥里诺科重油带淡水冲刷超重油储集层饱和度评价[J]. 测井技术, 2019, 43(1): 75-80.
CHEN Hui, LI Changwen, WANG Yusheng, et al.Evaluation of saturation of fresh water flushed overweight oil reservoir in Orinoco heavy oil belt in Venezuela[J]. Well Logging Technology, 2019, 43(1): 75-80.
[10] 刘亚明, 谢寅符, 马中振, 等. Orinoco 重油带重油成藏特征[J]. 石油与天然气地质, 2013, 34(3): 316-317.
LIU Yaming, XIE Yinfu, MA Zhongzhen, et al.Characteristics of heavy oil accumulation in Orinoco heavy oil belt[J]. Oil & Gas Geology, 2013, 34(3): 316-317.
[11] 李周波, 潘保芝, 范晓敏, 等. 地球物理测井数据处理与综合解释[M]. 北京: 地质出版社, 2008.
LI Zhoubo, PAN Baozhi, FAN Xiaomin, et al.Geophysical logging data processing and comprehensive interpretation[M]. Beijing: Geological Publishing House, 2008.
[12] 郭分乔. 各向异性渗透率的测定方法及软件研究[D]. 北京: 中国石油大学, 2001.
GUO Fenqiao.Determination of anisotropic permeability and software research[D]. Beijing: China University of Petroleum, 2001.
[13] 刘娟, 张永红, 张平, 等. 垦西地区沙四段原油稠化规律及分类开发[J]. 中国石油和化工标准与质量, 2014(7): 130.
LIU Juan, ZHANG Yonghong, ZHANG Ping, et al.Densification mechanism and classification development of crude oil in the Fourth Member of Sand Area in Kenxi[J]. Petrochemical and Chemical Industry Standards and Quality, 2014(7): 130.
[14] 肖立志. 核磁共振测井原理与应用[M]. 北京: 石油工业出版社,2007: 3-4.
XIAO Lizhi.Principles and applications of nuclear magnetic resonance logging[M]. Beijing: Petroleum Industry Press, 2007: 3-4.
[15] 赵瑞东, 吴晓东, 熊春明, 等. 泡沫油国内外研究进展[J]. 特种油气藏, 2012, 19(1):17-22.
ZHAO Ruidong, WU Xiaodong, XIONG Chunming, et al.Research progress in domestic and foreign of foam oil[J]. Specialty Oil and Gas Reservoirs, 2012, 19(1): 17-22.
[16] 时贤, 李兆敏, 张虎贲, 等. 超重油溶解气驱后转驱提高采收率实验[J]. 油气地质与采收率, 2015, 22(1): 98-101.
SHI Xian, LI Zhaomin, ZHANG Huyu, et al.Experimental study on enhanced oil recovery by transfer of super heavy oil after gas flooding[J]. Petroleum Geology and Recovery Efficiency, 2015, 22(1): 98-101.
[17] 熊钰, 王冲, 王玲, 等. 泡沫油形成过程及其影响因素研究进展[J]. 世界科技研究与发展, 2016, 38(3): 471-480.
XIONG Yu, WANG Chong, WANG Ling, et al.Research progress on foam oil formation process and its influencing factors[J]. World Science and Technology Research and Development, 2016, 38(3): 471-480.
[18] 张善文. 济阳坳陷深层稠油成因机理、储层评价与成藏规律[D]. 广州: 中国科学院广州地球化学研究所, 2002.
ZHANG Shanwen.Genetic mechanism, reservoir evaluation and accumulation law of deep heavy oil in Jiyang Depression[D]. Guangzhou: Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 2002.
[19] 陈浩, 陈和平, 黄文松, 等. 委内瑞拉奥里诺科重油带Carabobo油区M区块Morichal段地层沉积演化特征[J]. 西安石油大学学报(自然科学版), 2016, 31(1): 45-52.
CHEN Hao, CHEN Heping, HUANG Wensong, et al.Sedimentary evolution characteristics of the Morichal section of the Carbobo oilfield M block in the Orinoco heavy oil belt, Venezuela[J]. Journal of Xi'an Shiyou University(Natural Science Edition), 2016, 31(1): 45-52.
[20] ABIVIN P, HENAUT I, ARGILLIER J F, et al.Rheological characterization of foamy oils under pressure[J]. Energy & Fuels, 2009, 23(3): 1316-1322.
[21] 王清华, 白振强. 影响泡沫油流的因素[J]. 天然气勘探与开发, 2004, 27(1): 36-38.
WANG Qinghua, BAI Zhenqiang.Factors affecting foam oil flow[J]. Natural Gas Exploration and Development, 2004, 27(1): 36-38.
[22] 田鑫, 毛志强. 二维核磁共振测井识别稠油储层方法研究[J]. 核电子学与探测技术, 2008, 28(1): 132-135, 138.
TIAN Xin, MAO Zhiqiang.Study on identification of heavy oil reservoir by 2D NMR logging[J]. Nuclear Electronics & Detection Technology, 2008, 28(1): 132-135, 138.

Options

Outlines

模态框（Modal）标题

Abstract

Cite this article

References