Study on Different Potential Exploitation Technology of CO2 Huff and Puff in High Water Cut Period of Strong Bottom Water Reservoir

doi:10.19657/j.geoscience.1000-8527.2022.061

Abstract

Abstract:

The shallow strong edge and bottom water reservoir in Jidong Oilfield has entered the stage of ultra-high water cut development. The remaining oil is highly dispersed and the oil saturation is uneven. The effect of CO₂ huff and puff in different oil wells is different, which is difficult to achieve the overall efficient development of the reservoir. Considering the different oil saturations of reservoirs, it is necessary to design the slug combination and development policy of CO₂ huff and puff, so as to provide guidance for improving the development effect of CO₂ huff and puff. By means of two-dimensional physical simulation and reservoir numerical simulation, the mechanism of water control and oil increase in different CO₂ huff and puff methods is studied, and the oil saturation limit corresponding to different CO₂ huff and puff methods to oil saturation is quantitatively evaluated. The differential design chart of injection and production parameters under different oil saturation is established. The results show that when the residual oil saturation is between 0.47 and 0.50, the comprehensive economic effect of CO₂ huff and puff is the best. When the remaining oil saturation is between 0.43 and 0.47, the CO₂+plugging agent throughput method is the best. When the residual oil saturation is between 0.375 and 0.430, the CO₂+surfactant+plugging agent throughput is the best. The above research results are of great significance for the differential design of CO₂ huff and puff in ultra-high water cut reservoirs to accurately tap the remaining oil and realize the overall efficient development of reservoirs.

Key words: CO₂ huff and puff, typical high water cut period, differential design, strong edge and bottomwater

CLC Number:

P618.1
TE34

LUO Fuquan, WANG Miao, WANG Qunhui, GENG Wenshuang, HOU Jian, ZHAO Huihui. Study on Different Potential Exploitation Technology of CO₂ Huff and Puff in High Water Cut Period of Strong Bottom Water Reservoir[J]. Geoscience, 2022, 36(05): 1432-1439.

Figures/Tables 17

Table 1 Enhanced oil recovery (EOR) enhancement effect of three CO2 huff and puff methods

吞吐技术及参数		CO₂ 吞吐		CO₂吞吐转 CO₂+堵剂吞吐	CO₂吞吐转 CO₂+堵剂吞吐转 CO₂+表活剂+ 堵剂吞吐
水驱采收率/%		18.50		17.34	18.60
单轮吞吐总注入量/PV		0.06		0.06	0.06
一轮	提高采收率/%		12.41	15.21	14.07
一轮	换油率/(t油/tCO₂)		2.23	2.74	2.53
二轮	提高采收率/%		9.13	9.34	10.23
二轮	换油率/(t油/tCO₂)		1.64	1.68	1.84
三轮	提高采收率/%		2.95	12.86	11.07
三轮	换油率/(t油/tCO₂)		0.53	2.31	1.99
四轮	提高采收率/%			2.85	10.27
四轮	换油率/(t油/tCO₂)			0.51	2.22
五轮	提高采收率/%				2.26
五轮	换油率/(t油/tCO₂)				0.49
合计	提高采收率/%		24.50	40.26	47.90
合计	换油率/(t油/tCO₂)		1.47	1.81	1.85

Fig.1 Dynamic curve of water flooding to CO2 huff and puff production

Fig.2 Dynamic production curve of water flood-CO2 huff and puff-CO2+ plugging agent huff and puff

Fig.3 Production dynamic curve of water flooding-conversion to CO2 huff and puff-conversion to CO2+blocking agent huff and puff-conversion to CO2+surfactant+blocking agent huff and puff

Table 2 Basic parameters of conceptual model for shallow reservoir

倾角/℃	长宽比	油层厚度/m	韵律	含油面积/km²	油藏温度/℃	孔隙度/%	渗透率/mD	井距/m	排数
4	4	5	正韵律	0.15	65	25	1 400	120	2

Table 3 Conceptual model of shallow reservoir oil and formation water physical properties

原油物性					地层水物性
地下原油密度	地下原油黏度	凝固点	含蜡量	胶质+沥青	水型	黏度/	总矿化度	阴离子浓度	二价阳离子浓度
/(g/cm³)	/(mPa·s)	/℃	/%	/%	水型	(mPa·s)	/(mg/L)	/(mg/L)	/(mg/L)
0.86	4	20	10.8	16.6	碳酸氢钠	0.4	2 433	1 601	24

Fig.4 Phase permeability curve of conceptual model for shallow reservoir

Fig.5 Conceptual model of shallow reservoir

Fig.6 Schematic diagram of CO2+ plugging agent huff and puff oil enhancement mechanism

Fig.7 Schematic diagram of CO2+ blocking agent + surfactant huff and puff oil enhancement mechanism

Fig.8 Technical limits of the three throughput modes

Fig.9 Failure limit of CO2+ blocking agent + surfactant huff and huff technology

Fig.10 Influence of initial huff and puff radius on development effect under different oil saturations

Fig.11 Influence of increasing proportion of injection volume on development effect under different oil saturations

Fig.12 Influence of huff and puff rounds on development effect under different oil saturations

Fig.13 Required soaking time under different huff and puff injection rates

Fig.14 Influence of fluid extraction speed on development effect under different oil saturations

References 23

[1]	李国永, 叶盛军, 冯建松, 等. 复杂断块油藏水平井二氧化碳吞吐控水增油技术及其应用[J]. 油气地质与采收率, 2012, 19(4): 62-65, 115.
[2]	马桂芝, 陈仁保, 王群一, 等. 冀东复杂断块油藏CO₂吞吐典型井剖析[J]. 石油地质与工程, 2013, 27(5): 107-111,150.
[3]	马桂芝, 陈仁保, 张立民, 等. 南堡陆地油田水平井二氧化碳吞吐主控因素[J]. 特种油气藏, 2013, 20(5): 81-85,154.
[4]	李本维, 龚晶晶, 雷占祥, 等. 低含油饱和度底水油藏水平井开发技术--以高浅北区Ng6、Ng7、Ng9、Ng10小层为例[J]. 石油地质与工程, 2014, 28(1): 74-77,148.
[5]	刘道杰, 史英, 轩玲玲, 等. 特高含水油藏开发后期深部调驱+二氧化碳吞吐技术[J]. 特种油气藏, 2018, 25(2): 65-69.
[6]	HOU Ganggang, MA Xiaoli, ZHAO Wenyue, et al. Synergistic modes and enhanced oil recovery mechanism of CO₂ synergistic huff and puff[J]. Energies, 2021, 14(12): 3454. DOI URL
[7]	GONDIKEN S. Camurlu field immiscible CO₂ huff and puff pilot project[J]. SPE15749, 1987: 1-4.
[8]	HASKIN H K, ALSTON R B. An evaluation of CO₂ huff-n-puff tests in Texas[J]. Journal of Petroleum Technology, 1989, 41(2): 177-184. DOI URL
[9]	孙雷, 庞辉, 孙扬, 等. 浅层稠油油藏CO₂吞吐控水增油机理研究[J]. 西南石油大学学报(自然科学版), 2014, 36(6): 88-94.
[10]	ALVAREZ J O, SAPUTRA I W R, SCHECHTER D S. Potential of improving oil recovery with surfactant additives to completion fluids for the bakken[J]. Energy and Fuels, 2017, 31(6): 5982-5994. DOI URL
[11]	武玺, 张祝新, 章晓庆, 等. 大港油田开发中后期稠油油藏CO₂吞吐参数优化及实践[J]. 油气藏评价与开发, 2020, 10(3): 80-85.
[12]	ZHANG F, ADEL I A, PARK K H, et al. Enhanced oil recovery in unconventional liquid reservoir using a combination of CO₂ huff-n-puff and surfactant-assisted spontaneous imbibition[J]. SPE191502, 2018: 1-20.
[13]	王志兴. 边水断块油藏水平井组 CO₂协同吞吐实验研究[D]. 北京: 中国石油大学(北京), 2017.
[14]	李士伦, 汤勇, 侯承希. 注CO₂提高采收率技术现状及发展趋势[J]. 油气藏评价与开发, 2019, 9(3): 1-8.
[15]	沈思博. 冀东油藏A区CO₂吞吐最优工作参数研究[D]. 北京: 中国地质大学(北京), 2020.
[16]	张娟, 张晓辉, 张亮, 等. 水平井CO₂吞吐增油机理及影响因素[J]. 油田化学, 2017, 34(3): 475-481.
[17]	汤勇, 杜志敏, 孙雷, 等. CO₂在地层水中溶解对驱油过程的影响[J]. 石油学报, 2011, 32(2): 311-314. DOI
[18]	陈举民, 李进, 曹红燕, 等. 浅薄稠油油藏水平井CO₂吞吐机理及影响因素[J]. 断块油气田, 2018, 25(4): 515-520.
[19]	李晓骁, 岳湘安, 闫荣杰, 等. 稠油油藏表面活性剂辅助CO₂驱油效果及主控性能[J]. 油气地质与采收率, 2021, 28(6): 1-7.
[20]	郑昕, 姚秀田, 夏海容, 等. 稠油化学堵调降黏复合驱油体系构建及驱油机理分析[J]. 油气地质与采收率, 2021, 28(6): 122-128.
[21]	薛飞. 强底水油藏提高CO₂增产效果技术研究[D]. 青岛: 中国石油大学(华东), 2017.
[22]	梅子来. 表面活性剂原位乳化驱油效率及驱油机理研究[D]. 成都: 西南石油大学, 2019.
[23]	陈世杰, 潘毅, 孙雷, 等. 低渗高凝油藏CO₂复合驱提高采收率机理实验研究[J]. 油气藏评价与开发, 2021, 11(6): 823-830.

Study on Different Potential Exploitation Technology of CO₂ Huff and Puff in High Water Cut Period of Strong Bottom Water Reservoir

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