Pilot test of polymer microsphere alternate surfactant flood (PMAS) with mixtures of anionic-cationic surfactants under harsh conditions in a sandstone reservoir
The first pilot test of polyacrylamide microsphere alternate surfactant flood (PMAS) with mixtures of anionic-cationic surfactants (Sa/c) was carried out for a high-temperature, high-salinity, and high-hardness sandstone reservoir to demonstrate the potential of this novel technique to improve oil r...
| Main Authors: | , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2023-09-01
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| Series: | Petroleum Research |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2096249523000017 |
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| author | Yingcheng Li Jun Jin Zhiqing Su Weidong Zhang Xinning Bao Baolun Niu Changhua Yang Xinyue Wu Xiaodong Zhai Li Zhang Rong Guo Yong Meng Xiujuan He Zhiqin Shen Hui Zhang Ou Sha |
| author_facet | Yingcheng Li Jun Jin Zhiqing Su Weidong Zhang Xinning Bao Baolun Niu Changhua Yang Xinyue Wu Xiaodong Zhai Li Zhang Rong Guo Yong Meng Xiujuan He Zhiqin Shen Hui Zhang Ou Sha |
| author_sort | Yingcheng Li |
| collection | DOAJ |
| description | The first pilot test of polyacrylamide microsphere alternate surfactant flood (PMAS) with mixtures of anionic-cationic surfactants (Sa/c) was carried out for a high-temperature, high-salinity, and high-hardness sandstone reservoir to demonstrate the potential of this novel technique to improve oil recovery. A critical micelle concentration (CMC) of 4.82 mg/L, an ultralow interfacial tension (IFT) of 8 × 10−4 mN/m, and a high oil solubilization of 22 were obtained. Static and dynamic adsorptions of Sa/c on natural core containing 15 wt% clay were reduced to about 2.20 and 0.30 mg/g-core, respectively, with the addition of adsorption inhibitor (AI). Since June 2014, the pilot test of PMAS was carried out in a Sinopec reservoir with a temperature of 87 °C, a salinity of 260,393 mg/L, and a hardness of 6,401 mg/L. Twelve cycles of alternative injection of 0.0125 PV Sa/c with a concentration of 0.1% and 0.0125 PV polyacrylamide microsphere with a concentration of 0.2% were conducted at an injection rate of 0.1 PV/yr, for a total of 0.3 PV chemical injection. As a result, the net daily oil production increased from 0 t to 6.5 t, and the water cut decreased from 96.3% to 93.8%, leading to an ultimate improved oil recovery of 6.3% original oil-in-place. |
| first_indexed | 2024-03-11T21:25:07Z |
| format | Article |
| id | doaj.art-a0fef7950a4c46219229a519ffc4779d |
| institution | Directory Open Access Journal |
| issn | 2096-2495 |
| language | English |
| last_indexed | 2024-03-11T21:25:07Z |
| publishDate | 2023-09-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Petroleum Research |
| spelling | doaj.art-a0fef7950a4c46219229a519ffc4779d2023-09-28T05:25:44ZengKeAi Communications Co., Ltd.Petroleum Research2096-24952023-09-0183291300Pilot test of polymer microsphere alternate surfactant flood (PMAS) with mixtures of anionic-cationic surfactants under harsh conditions in a sandstone reservoirYingcheng Li0Jun Jin1Zhiqing Su2Weidong Zhang3Xinning Bao4Baolun Niu5Changhua Yang6Xinyue Wu7Xiaodong Zhai8Li Zhang9Rong Guo10Yong Meng11Xiujuan He12Zhiqin Shen13Hui Zhang14Ou Sha15Sinopec Shanghai Research Institute of Petrochemical Technology, Shanghai, China; Corresponding author.Sinopec Shanghai Research Institute of Petrochemical Technology, Shanghai, ChinaSinopec Shanghai Research Institute of Petrochemical Technology, Shanghai, ChinaSinopec Shanghai Research Institute of Petrochemical Technology, Shanghai, ChinaSinopec Shanghai Research Institute of Petrochemical Technology, Shanghai, ChinaSinopec Zhongyuan Oil Field Company, Puyang, ChinaXi'an Petroleum University, Xi'an, ChinaSinopec Shanghai Research Institute of Petrochemical Technology, Shanghai, ChinaSinopec Shanghai Research Institute of Petrochemical Technology, Shanghai, ChinaSinopec Shanghai Research Institute of Petrochemical Technology, Shanghai, ChinaSinopec Shanghai Research Institute of Petrochemical Technology, Shanghai, ChinaSinopec Shanghai Research Institute of Petrochemical Technology, Shanghai, ChinaSinopec Shanghai Research Institute of Petrochemical Technology, Shanghai, ChinaSinopec Shanghai Research Institute of Petrochemical Technology, Shanghai, ChinaSinopec Shanghai Research Institute of Petrochemical Technology, Shanghai, ChinaSinopec Shanghai Research Institute of Petrochemical Technology, Shanghai, ChinaThe first pilot test of polyacrylamide microsphere alternate surfactant flood (PMAS) with mixtures of anionic-cationic surfactants (Sa/c) was carried out for a high-temperature, high-salinity, and high-hardness sandstone reservoir to demonstrate the potential of this novel technique to improve oil recovery. A critical micelle concentration (CMC) of 4.82 mg/L, an ultralow interfacial tension (IFT) of 8 × 10−4 mN/m, and a high oil solubilization of 22 were obtained. Static and dynamic adsorptions of Sa/c on natural core containing 15 wt% clay were reduced to about 2.20 and 0.30 mg/g-core, respectively, with the addition of adsorption inhibitor (AI). Since June 2014, the pilot test of PMAS was carried out in a Sinopec reservoir with a temperature of 87 °C, a salinity of 260,393 mg/L, and a hardness of 6,401 mg/L. Twelve cycles of alternative injection of 0.0125 PV Sa/c with a concentration of 0.1% and 0.0125 PV polyacrylamide microsphere with a concentration of 0.2% were conducted at an injection rate of 0.1 PV/yr, for a total of 0.3 PV chemical injection. As a result, the net daily oil production increased from 0 t to 6.5 t, and the water cut decreased from 96.3% to 93.8%, leading to an ultimate improved oil recovery of 6.3% original oil-in-place.http://www.sciencedirect.com/science/article/pii/S2096249523000017Pilot testMixtures of anionic and cationic surfactantPolyacrylamide microsphereHigh salinityHigh temperature |
| spellingShingle | Yingcheng Li Jun Jin Zhiqing Su Weidong Zhang Xinning Bao Baolun Niu Changhua Yang Xinyue Wu Xiaodong Zhai Li Zhang Rong Guo Yong Meng Xiujuan He Zhiqin Shen Hui Zhang Ou Sha Pilot test of polymer microsphere alternate surfactant flood (PMAS) with mixtures of anionic-cationic surfactants under harsh conditions in a sandstone reservoir Petroleum Research Pilot test Mixtures of anionic and cationic surfactant Polyacrylamide microsphere High salinity High temperature |
| title | Pilot test of polymer microsphere alternate surfactant flood (PMAS) with mixtures of anionic-cationic surfactants under harsh conditions in a sandstone reservoir |
| title_full | Pilot test of polymer microsphere alternate surfactant flood (PMAS) with mixtures of anionic-cationic surfactants under harsh conditions in a sandstone reservoir |
| title_fullStr | Pilot test of polymer microsphere alternate surfactant flood (PMAS) with mixtures of anionic-cationic surfactants under harsh conditions in a sandstone reservoir |
| title_full_unstemmed | Pilot test of polymer microsphere alternate surfactant flood (PMAS) with mixtures of anionic-cationic surfactants under harsh conditions in a sandstone reservoir |
| title_short | Pilot test of polymer microsphere alternate surfactant flood (PMAS) with mixtures of anionic-cationic surfactants under harsh conditions in a sandstone reservoir |
| title_sort | pilot test of polymer microsphere alternate surfactant flood pmas with mixtures of anionic cationic surfactants under harsh conditions in a sandstone reservoir |
| topic | Pilot test Mixtures of anionic and cationic surfactant Polyacrylamide microsphere High salinity High temperature |
| url | http://www.sciencedirect.com/science/article/pii/S2096249523000017 |
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