大庆外围油田CO2近混相驱特征图版的建立

doi:10.13809/j.cnki.cn32-1825/te.2020.03.007

摘要/Abstract

摘要：

针对目前大庆外围油田CO₂驱油区块采收率主要通过数值模拟方法进行预测、缺乏适合的经验公式等问题,建立了基于大庆外围油田基础物性和流体PVT参数的混相、近混相、非混相驱非均质理想模型,定义了含碳率-累产油、A型、B型三种CO₂驱特征曲线,利用特征曲线预测模型中的采收率,优选出适合CO₂近混相驱的特征曲线计算方法。在此基础上,建立了适合S区块的含碳率和采出程度图版,并与S区块实际动态相比较,选取A型气驱特征曲线进一步建立了CO₂近混相驱特征图版,应用改进后的图版预测了S区块CO₂驱采收率。结果表明:运用CO₂近混相驱特征图版预测的采收率与S区块现场预测的采收率比较接近,此方法可以简单快捷预测CO₂驱采收率,同时为S区块以及类似区块下一步的开发及评价提供参考。

关键词: CO₂驱, 大庆外围油田, 近混相驱, 特征图版, 采收率预测

Abstract:

At present, the oil recovery in the CO₂ oil displacement area of the peripheral oilfields in Daqing is mainly predicted by numerical simulation with no empirical formulas. In order to solve this problem, firstly, an heterogeneous ideal model of miscible, near-miscible and immiscible by CO₂flooding based on the basic physical properties and PVT parameters of the peripheral oil field in Daqing oilfield is established. Secondly, three kinds of characteristic curves of CO₂ flooding are defined, including carbon content-accumulation of oil, type A and type B. The feature curve is used to predict the recovery rate in the model, and the calculation method of characteristic curve suitable for CO₂ near-miscible flooding modes is optimized. On this basis, the carbon content and recovery degree chart suitable for S block is established, and compared with the actual performance of S block. A-type gas drive characteristic curve is selected for the further establishment of the CO₂ near-miscible drive chart, and this improved chart is applied to predict the recovery rate of S block. The results show that the recovery rate predicted by the CO₂ near-miscible flooding chart is close to that predicted by the field test of S block. This method can predict the recovery rate of CO₂ flooding simply and quickly, and has guiding significance for the next development and evaluation of S block and similar blocks.

Key words: CO₂ flooding, peripheral oilfields in Daqing, near-miscible flooding, characteristic curve, recovery rate prediction

中图分类号:

TE357

王鑫,李敏. 大庆外围油田CO₂近混相驱特征图版的建立[J]. 油气藏评价与开发, 2020, 10(3): 45-50.

Xin WANG,Min LI. Establishment of the characteristic chart for CO₂ near-miscible flooding of peripheral oilfields in Daqing[J]. Reservoir Evaluation and Development, 2020, 10(3): 45-50.

图/表 10

表1

表2

图1

图2

图3

表3

图4

图5

图6

图7

参考文献 16

[1]	李剑, 段景杰, 姚振杰, 等. 低渗透油藏水驱后注CO₂驱提高采收率影响因素分析[J]. 非常规油气, 2017,4(6):45-52.
	LI J, DUAN J J, YAO Z J, et al. Analysis on influence factors of enhanced oil recovery in CO₂ flooding after water flooding in low permeability reservoir[J]. Unconventional Oil & Gas, 2017,4(6):45-52.
[2]	李立峰, 滕世婷, 冯绪波, 等. 基于水驱开发全过程的新型水驱特征曲线[J]. 特种油气藏, 2019,26(3):85-88.
	LI L F, TENG S T, FENG X B, et al. A new water-flooding characteristic curve based on the whole water-flooding process[J]. Special Oil & Gas Reservoirs, 2019,26(3):85-88.
[3]	杨艳. 低渗透油田童氏参数改进及应用分析[J]. 断块油气田, 2018,25(3):350-353.
	YANG Y. Modification of Tongrs parameter of low permeability reservoir and its application[J]. Fault-block Oil & Gas Field, 2018,25(3):350-353.
[4]	张本艳, 周立娟, 何学文, 等. 鄂尔多斯盆地渭北油田长3储层注CO₂室内研究[J]. 石油地质与工程, 2018,32(3):87-90.
	ZHANG B Y, ZHOU L J, HE X W, et al. A laboratory study on CO₂ injection of Chang 3 reservoir of Weibei oilfield in Ordos basin[J]. Petroleum Geology & Engineering, 2018,32(3):87-90.
[5]	商琳琳. 龙虎泡油田高台子致密油层CO₂驱实验研究[J]. 石油地质与工程, 2018,32(5):60-62.
	SHANG L L. Experimental study on CO₂ flooding of Gaotaizi tight oil layers in Longhupao oilfield[J]. Petroleum Geology & Engineering, 2018,32(5):60-62.
[6]	鞠斌山, 于金彪, 吕广忠, 等. 低渗透油藏CO₂驱油数值模拟方法与应用[J]. 油气地质与采收率, 2020,27(1):126-133.
	JU B S, YU J B, LYU G Z, et al. Numerical simulation method and application of CO₂ flooding in low permeability reservoirs[J]. Petroleum Geology and Recovery Efficiency, 2020,27(1):126-133.
[7]	陈祖华, 吴公益, 钱卫明, 等. 苏北盆地复杂小断块油藏注CO₂提高采收率技术及应用[J]. 油气地质与采收率, 2020,27(1):152-162.
	CHEN Z H, WU G Y, QIAN W M, et al. EOR technology and application of CO₂ injection for small complex fault block reservoirs in Subei Basin[J]. Petroleum Geology and Recovery Efficiency, 2020,27(1):152-162.
[8]	贾凯锋, 计董超, 高金栋, 等. 低渗透油藏CO₂驱油提高原油采收率研究现状[J]. 非常规油气, 2019,6(1):107-114.
	JIA K F, JI D C, GAO J D, et al. The exisiting state of enhanced oil recovery by CO₂ flooding in low permeability reservoirs[J]. Unconventional Oil & Gas, 2019,6(1):107-114.
[9]	王海妹. CO₂驱油技术适应性分析及在不同类型油藏的应用——以华东油气分公司为例[J]. 石油地质与工程, 2018,32(5):63-65.
	WANG H M. Adaptive analysis of CO₂ flooding technology and its application in different types of reservoirs[J]. Petroleum Geology & Engineering, 2018,32(5):63-65.
[10]	王世璐, 王玉霞, 贾凯锋. 低渗透油藏岩心注CO₂驱油效率物理模拟[J]. 非常规油气, 2019,6(2):85-90.
	WANG S L, WANG Y X, JIA K F. Physical simulation of CO₂ flooding efficiency in low permeability reservoir core[J]. Unconventional Oil & Gas, 2019,6(2):85-90.
[11]	杨勇. 胜利油田特低渗透油藏CO₂驱技术研究与实践[J]. 油气地质与采收率, 2020,27(1):11-19.
	YANG Y. Research and application of CO₂ flooding technology in extra-low permeability reservoirs of Shengli Oilfield[J]. Petroleum Geology and Recovery Efficiency, 2020,27(1):11-19.
[12]	史云清, 贾英, 潘伟义, 等. 低渗致密气藏注超临界CO₂驱替机理[J]. 石油与天然气地质, 2017,38(3):610-616.
	SHI Y Q, JIA Y, PAN W Y, et al. Mechanism of supercritical CO₂ flooding in low-permeability tight gas reservoirs[J]. Oil & Gas Geology, 2017,38(3):610-616.
[13]	吕成远, 王锐, 赵淑霞, 等. 低渗透油藏CO₂非混相驱替特征曲线研究[J]. 油气地质与采收率, 2017,24(5):111-114.
	LYU C Y, WANG R, ZHAO S X, et al. Study on displacement characteristic curve in CO₂ immiscible flooding for low permeability reservoirs[J]. Petroleum Geology and Recovery Efficiency, 2017,24(5):111-114.
[14]	孙雷, 冯乔, 陈国利, 等. CO₂混相驱拟含气率与采出程度图版的建立[J]. 西南石油大学学报(自然科学版), 2014,36(1):83-88. doi: 10.11885/j.issn.1674-5086.2013.10.14.06
	SUN L, FENG Q, CHENG G L, et al. Establishment of the chart of equivalent gas ratio-recovery degree for CO₂ miscible flooding[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2014,36(1):83-88. doi: 10.11885/j.issn.1674-5086.2013.10.14.06
[15]	李阳. 低渗透油藏CO₂驱提高采收率技术进展及展望[J]. 油气地质与采收率, 2020,27(1):1-10.
	LI Y. Technical advancement and prospect for CO₂ flooding enhanced oil recovery in low permeability reservoirs[J]. Petroleum Geology and Recovery Efficiency, 2020,27(1):1-10.
[16]	丁妍. 濮城油田低渗高压注水油藏转CO₂驱技术及应用[J]. 石油地质与工程, 2019,33(6):73-76.
	DING Y. Technology and application of CO₂ flooding in low-permeability and high-pressure water injection reservoirs in Pucheng oilfield[J]. Petroleum Geology & Engineering, 2019,33(6):73-76.

驱替类型	节点数/个	网格精度/ （m×m×m）	层数	渗透率/ 10^-3 μm²	孔隙度/ %	井底流压/MPa	注入压力/MPa	PVT	最小混相压力/MPa
混相	90×110×1	10×10×5	1	2	12	5	38	B区块油样数据	16.6
近混相	90×110×1	10×10×5	1	2	12	5	38	S区块油样数据	32.2
非混相	90×110×1	10×10×5	1	2	12	5	38	F区块油样数据	41.3

混相系数	驱替类型	初期	0.04 HCPV	0.2 HCPV	0.4 HCPV	0.6 HCPV	1.5 HCPV
全混相体积系数	混相驱	55.3	63.2	62.9	60.5	61.2	50.4
	近混相驱	4.5	9.6	11.0	10.1	9.6	9.2
	非混相驱	0	0	0	0	0	0
半混相体积系数	混相驱	44.7	36.8	37.2	39.5	38.6	49.7
	近混相驱	84.4	74.0	76.2	88.4	78.5	31.6
	非混相驱	100	96.3	63.2	0.2	0	0
非混相体积系数	混相驱	0	0	0	0	0	0
	近混相驱	11.1	16.3	12.8	1.5	11.9	59.2
	非混相驱	0	3.8	36.8	99.8	99.9	99.9

气驱特征曲线类型	驱替类型	特征曲线法计算采收率/%	数模计算采收率/%	误差/%
含碳率-累产油关系曲线	混相驱	26.0	26.2	0.7
	近混相驱	23.2	23.8	2.4
	非混相驱	18.9	19.4	2.2
A型气驱特征曲线	混相驱	25.6	26.2	2.2
A型气驱特征曲线	近混相驱	23.1	23.8	2.3
B型气驱特征曲线	混相驱	25.5	26.2	2.3
	近混相驱	23.1	23.8	2.7
	非混相驱	16.3	19.4	15.9

大庆外围油田CO₂近混相驱特征图版的建立

Establishment of the characteristic chart for CO₂ near-miscible flooding of peripheral oilfields in Daqing

RichHTML

PDF (PC)

赞

可视化

摘要/Abstract

引用本文

使用本文

图/表 10

参考文献 16

相关文章 15

Metrics

本文评价

推荐阅读 0

[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]	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.
[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]	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.
[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.