海上高含水油田用无机复合调驱剂实验研究

doi:10.3969/j.issn.2097-2806.2024.11.003

Abstract

Abstract:

An environmentally friendly inorganic composite deep profile control and oil displacement agent was prepared for those offshore high water cut oil fields with formation water containing sodium bicarbonate. Sodium silicate and calcium chloride were used as the main agents, while polycarboxylic acid dispersant and emulsion polymer were used as assistants. The effects of the type of polycarboxylic acid dispersant and the mass concentration of emulsion polymer on the performance of the deep profile control and oil displacement agent were studied. The results showed that when the acid-ether ratio of the polycarboxylic acid dispersant was 3.7 and its molecular weight was 23 800, the electrostatic repulsion and steric hindrance from polycarboxylic acid dispersant and inorganic particles achieved an effective dispersing effect. Combined with low concentration of emulsion polymer （500 mg/L）, the formulated inorganic composite deep profile control and oil displacement system could enhance the viscosity and strength of the system, and the initial viscosity was increased from 1.1 mPa·s to 5.4 mPa·s. The results showed that this inorganic composite deep profile control and oil displacement agent could increase the flow resistance, with a plugging rate of 82.3%. It could achieve online injection and had the characteristics of rapid dispersing, deep profile control and oil displacement, and low cost. This inorganic composite deep profile control and oil displacement agent had application value in high water cut oil fields.

Key words: high water cut oil field, polycarboxylic acid dispersant, adsorption performance, steric hindrance, acid-ether ratio, emulsion polymer

CLC Number:

TQ423

Meng Yu, Guorui Xu, Xiang Li, Yufei Zheng, Xuan Feng, Jinzhou Yang, Fenggang Liu. Experimental research of inorganic composite deep profile control and oil displacement agent for offshore high water cut oil fields[J].China Surfactant Detergent & Cosmetics, 2024, 54(11): 1307-1312.

Figures/Tables 9

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References 11

[1]	Wang Boyu, Huang Chao, Lu Zhenhua, et al. Feasibility study on application of inorganic gel technology in low permeability and high salt reservoirs[J]. Petrochemical Technology, 2023, 52 (3) : 358-365. doi: 10.3969/j.issn.1000-8144.2023.03.012
[2]	Xu Hao, Zheng Rui, Yin Yuchuan, et al. Effect of inorganic gel flooding and parameters optimization in high salt reservoir-take Yanmuxi oilfield of Tuha as an example[J]. Oilfield Chemistry, 2019, 36 (4) : 624-629.
[3]	Liu Wenhui. Research on characteristics and modification performance of environmental-friendly inorganic precipitating diversion agent[J]. Inorganic Chemicals Industry, 2019, 51 (11) : 23-27.
[4]	Zhang Yanhui, Chen Weiyu, Meng Kequan, et al. Research on optimization of emulsion polymer gel on-line profile control parameters in offshore oilfields[J]. Contemporary Chemical Industry, 2020, 49 (5) : 881-884.
[5]	Li Yan, Hou Jirui, Wang Xiangzeng, et al. Evaluation and long-distance transportation characteristics of online composite conformance agents[J]. Oilfield Chemistry, 2019, 36 (4) : 693-699.
[6]	Lv Peng, Kan Liang, Wang Chengsheng, et al. EOR technology by online combination displacement method for offshore oil field-take well group E of Bohai C oilfield as an example[J]. Science Technology and Engineering, 2017, 17 (9) : 164-167.
[7]	Dong Lifei, Yue Xiang’an, Su Qun, et al. Study on the plugging ability of polymer gel particle for the profile control in reservoir[J]. Journal of Dispersion Science and Technology, 2016, 37 (1) : 34-40.
[8]	Pu Cao, Zhu Shijie, Liu Lijuan, et al. Evaluation of shear resistance of multi-crosslinked hydrogel system[J]. China Surfactant Detergent & Cosmetics, 2023, 53 (10) : 1173-1179.
[9]	Liao Jianjun, Li Huabin, Deng Jinpin, et al. Experimental study on polymer gel profile control and flooding in high-temperature heterogeneous reservoirs[J]. China Surfactant Detergent & Cosmetics, 2023, 53 (4) : 373-381.
[10]	Cao Weijia, Lu Xiangguo, Tian Zhongyuan, et al. Transport capacity of inorganic gel in 18 m core[J]. Oilfield Chemistry, 2020, 37 (3) : 427-431.
[11]	Kuai Jingwen, Cao Weijia, Lu Xiangguo, et al. Reservoir adaptability evaluation and mechanism analysis of original inorganic gel[J]. Petrochemical Technology, 2019, 48 (8) : 858-863.

样品名称	样品1	样品2	样品3	样品4	样品5	样品6	样品7
A/E值	3.2	3.7	4.3	5.3	3.7	3.7	3.7
Mw	23 400	23 800	23 600	23 800	16 200	27 400	36 700
PE/%	90.5	90.6	90.7	90.5	90.8	90.8	91.0

Experimental research of inorganic composite deep profile control and oil displacement agent for offshore high water cut oil fields

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