草舍泰州组油藏CO2混相驱效果及二次气驱可行性研究

油气藏评价与开发 ›› 2019, Vol. 9 ›› Issue (3): 47-50.

草舍泰州组油藏CO₂混相驱效果及二次气驱可行性研究

陈祖华¹,孙雷²,杨正茂¹,王海妹¹,冯洋³,华柑霖⁴

^1. 中国石化华东油气分公司,江苏南京 210011
^2. 西南石油大学油气藏地质及开发国家重点实验室,四川成都 610500
^3. 陕西延长石油（集团）有限责任公司延长气田,陕西西安 710075
^4. 中国地质大学能源学院,北京 100083

收稿日期:2019-02-02 出版日期:2019-06-26 发布日期:2019-07-02
作者简介:陈祖华(1969-),女,研究员,油气田开发、注CO2提高采收率等研究工作。E-mail: 68835285@qq.com。

Effects of CO₂ miscible displacement and feasibility study of secondary gas flooding of Taizhou formation in Caoshe oilfield

Chen Zuhua¹,Sun Lei²,Yang Zhengmao¹,Wang Haimei¹,Feng Yang³,Hua Ganlin⁴

^1. Exploration and Development Research Institute, East China Company, SINOPEC, Nanjing, Jiangsu 210011, China
^2. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China
^3. Yanchang Gas Field, Shaanxi Yanchang Petroleum(Group) Co, LTD., Xi'an, Shaanxi 710075, China
^4. School of Energy, China University of Geosciences, Beijing 100083, China

Received:2019-02-02 Online:2019-06-26 Published:2019-07-02

摘要/Abstract

摘要：

草舍泰州组油藏CO₂混相驱提高采收率项目是国内较为成功的项目之一。针对一次混相驱后剩余油分布复杂、后期气窜严重等问题,开展二次混相驱的可行性研究。金相显微镜下观测真实岩心CO₂混相驱的流动过程具有微观分维的特征,剩余油以薄膜状、孤立点珠状附着在岩石孔隙表面,CO₂二次混相驱油效率为93.40 %,比一次混相驱油效率提高9.73 %;密闭取心显示平均残余油饱和度为30.8 %,III油组潜力较大。设计二次混相驱油可行性方案,采用分层系开发动用底部油藏,高部位注气抑制重力超覆,水气交替减缓气窜,全过程防窜调整剖面等方式,预计可进一步提高采收率8 % ~ 10 %。

关键词: 草舍泰州组, CO₂驱, 一次混相驱, 二次混相驱

Abstract:

The CO₂ miscible flooding project in the Taizhou formation of Caoshe oilfield is one of the most successful CO₂ EOR projects in China. The feasibility study on the secondary miscible flooding was carried out to settle the issues of complex remaining oil distribution and severe gas channeling in the later stage after first miscible flooding. The characteristic of microscopic fractal dimension in the CO₂ miscible flooding process of real core sample was observed through metalloscope. The remaining oil types attaching to the pore surface of rock took on the forms of thin film and isolated beads. The displacement efficiency of the secondary CO₂ miscible flooding was 93.4 %, which was 9.73 % higher than that of the first CO₂ miscible flooding. The average residual oil saturation was 30.8 % in sealed coring test, indicating great potential of III formation. A feasible development plan for secondary miscible-phases flooding was proposed to develop the stratified reservoirs at the bottom position. The CO₂ injection on the higher position was adopt to suppress gas gravity overlap, and the water alternating gas was applied to slow down the gas channeling. Furthermore, the injection profile was adjusted during the whole process of gas injection. The incremental recovery ratio was estimated to be 8 % ~ 10 %.

Key words: Taizhou formation in Caoshe oilfield, CO₂ flooding, first miscible-phases flooding, secondary miscible-phases flooding

中图分类号:

TE357

陈祖华,孙雷,杨正茂,王海妹,冯洋,华柑霖. 草舍泰州组油藏CO₂混相驱效果及二次气驱可行性研究[J]. 油气藏评价与开发, 2019, 9(3): 47-50.

Chen Zuhua,Sun Lei,Yang Zhengmao,Wang Haimei,Feng Yang,Hua Ganlin. Effects of CO₂ miscible displacement and feasibility study of secondary gas flooding of Taizhou formation in Caoshe oilfield[J]. Reservoir Evaluation and Development, 2019, 9(3): 47-50.

图/表 4

参考文献 14

[1]	俞凯, 刘伟, 陈祖华 , 等. 陆相低渗油藏CO2混相驱技术[M]. 北京: 中国石化出版社, 2015.
[2]	王永兰 . CO₂混相驱优化决策与效果评价方法研究[D]. 成都:西南石油大学, 2008.
[3]	邓波, 李鸿, 曹建 , 等. 注CO₂驱油藏先导性筛选评价方法[J]. 西南石油大学学报:自然科学版, 2009,31(2):105-108.
[4]	陈祖华 . 低渗透油藏CO₂驱油开发方式与应用[J]. 现代地质, 2015,29(4):950-957.
[5]	陈文, 汤勇, 梁涛 , 等. 超临界CO₂动态混相驱过程机理研究[J]. 钻采工艺, 2011,34(3):77-80.
[6]	计秉玉, 王凤兰, 何应付 . 对CO₂驱油过程中油气混相特征的再认识[J]. 大庆石油地质与开发, 2009,28(3):103-109.
[7]	陈祖华, 汤勇, 王海妹 , 等. CO₂驱开发后期防气窜综合治理方法研究[J]. 岩性油气藏, 2014,26(5):102-106.
[8]	赵辉, 王传飞, 侯健 , 等. 倾斜油藏水气交替驱提高采收率机理研究[J]. 石油天然气学报, 2009,31(5):135-138
[9]	Jeschke P A, Schoeling, L H . CO₂ flood potential of California oil reservoirs and possible CO₂ sources[C]// paper SPE-63305-MS presented at the SPE Annual Technical Conference and Exhibition, 1-4October 2000, Dallas, Texas, USA.
[10]	Chen, Hsiu-Kuo . Gas injection in the Safah Field, Oman[C]// paper SPE-29805-MS presented at the Middle East Oil Show 11-14 March 1995, Bahrain.
[11]	陈祖华, 蒲敏, 杨春红 , 等. CS油田CT复杂断块低渗透油藏CO₂驱动态调整研究[J]. 石油天然气学报, 2012,34(1):118-122.
[12]	李士伦, 张正卿, 冉新权 , 等. 注气提高石油采收率技术[M]. 成都: 四川科学技术出版社, 2001.
[13]	汤勇, 赵雪梅, 汪洋 . CO₂驱最小混相压力影响因素研究[J]. 油气藏评价与开发, 2018,8(4):42-45.
[14]	王健, 吴松芸, 余恒 . CO₂泡沫改善吸水剖面实验评价研究[J]. 油气藏评价与开发, 2018,8(4):22-25.

[1]	唐建东, 王智林, 葛政俊. 苏北盆地江苏油田CO₂驱油技术进展及应用 [J]. 油气藏评价与开发, 2024, 14(1): 18-25.
[2]	李建山, 高浩, 鄢长灏, 王石头, 王亮亮. 原油-CO₂相互作用机理分子动力学模拟研究 [J]. 油气藏评价与开发, 2024, 14(1): 26-34.
[3]	石彦, 谢俊辉, 郭小婷, 吴通, 陈德全, 孙琳, 杜代军. 新疆油田中深层稠油CO₂驱/吞吐实验研究 [J]. 油气藏评价与开发, 2024, 14(1): 76-82.
[4]	张志升, 吴向阳, 吴倩, 王冀星, 林汉弛, 郭军红, 王锐, 李金花, 林千果. CO₂驱油封存泄漏风险管理系统及应用研究 [J]. 油气藏评价与开发, 2024, 14(1): 91-101.
[5]	陈秀林, 王秀宇, 许昌民, 张聪. 基于核磁共振与微观数值模拟的CO₂埋存形态及分布特征研究 [J]. 油气藏评价与开发, 2023, 13(3): 296-304.
[6]	王高峰, 廖广志, 李宏斌, 胡志明, 魏宁, 丛连铸. CO₂驱气机理与提高采收率评价模型 [J]. 油气藏评价与开发, 2022, 12(5): 734-740.
[7]	崔传智,闫大伟,姚同玉,王建,张传宝,吴忠维. CO₂驱前缘运移规律及气窜时机预测方法——以胜利油田G89-1区块为例 [J]. 油气藏评价与开发, 2022, 12(5): 741-747.
[8]	潘毅,赵秋霞,孙雷,刘江,汪涛,郭德明. CO₂驱最小混相压力预测模型研究 [J]. 油气藏评价与开发, 2022, 12(5): 748-753.
[9]	邓家胜,王子逸,何旺达,彭东宇,余波,唐洪明. 绿泥石与CO₂溶液反应实验研究 [J]. 油气藏评价与开发, 2022, 12(5): 777-783.
[10]	李阳,黄文欢,金勇,何应付,陈祖华,汤勇,吴公益. 双碳愿景下中国石化不同油藏类型CO₂驱提高采收率技术发展与应用 [J]. 油气藏评价与开发, 2021, 11(6): 793-804.
[11]	计秉玉,何应付. 中国石化低渗透油藏CO₂驱油实践与认识 [J]. 油气藏评价与开发, 2021, 11(6): 805-811.
[12]	张宗檩,吕广忠,王杰. 胜利油田CCUS技术及应用 [J]. 油气藏评价与开发, 2021, 11(6): 812-822.
[13]	唐良睿,贾英,严谨,李广辉,汪勇,何佑伟,秦佳正,汤勇. 枯竭气藏CO₂埋存潜力计算方法研究 [J]. 油气藏评价与开发, 2021, 11(6): 858-863.
[14]	吴公益,赵梓平,吴波. 苏北不同类型油藏CO₂驱开发模式及经济效益评价 [J]. 油气藏评价与开发, 2021, 11(6): 864-870.
[15]	刘学利,郑小杰,谭涛,窦莲,谢爽. 塔河强底水砂岩油藏CO₂驱机理实验研究 [J]. 油气藏评价与开发, 2020, 10(6): 115-120.

草舍泰州组油藏CO₂混相驱效果及二次气驱可行性研究

Effects of CO₂ miscible displacement and feasibility study of secondary gas flooding of Taizhou formation in Caoshe oilfield

RichHTML

PDF (PC)

赞

可视化

摘要/Abstract

引用本文

使用本文

图/表 4

参考文献 14

相关文章 15

Metrics

本文评价

推荐阅读 10