适合海上Q油田的活性聚合物调驱性能评价
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摘要
针对海上Q油田非均质性强及综合含水率高的问题,开展了活性聚合物调驱性能研究。研究中采用流变仪和界面张力仪考察了活性聚合物的增黏性和界面活性,采用室内物理模拟实验考察了相同黏度下活性聚合物的注入性、驱油能力以及不同注入方式下的驱油效率。研究结果表明,相比普通聚合物,活性聚合物增黏性好,具有低浓高黏特性;浓度高于400 mg/L时,油水界面张力低于11 mN/m;在注入岩芯时,岩芯末端起压明显,具有一定的深部调剖能力;相同黏度下活性聚合物的驱油效率要比普通聚合物高8.66%,聚合物与水交替注入时提高采收率幅度最高,达到22.34%。
The profile control capability of an active polymer was studied to address the issues of high heterogeneity and overall high water content with offshore Q Oilfields. The viscosity-improvement capacity and interfacial activity of the active polymer were examined by a rheometer and an interfacial tensiometer, respectively. An indoor physical simulation experiment was then performed to examine the active polymer for its injection properties, oil displacement capability, and displacement efficiency using various methods of injection. The experimental results showed that, compared to common polymers, the active polymer showed better viscosity-improvement capacity, with low concentration but high-viscosity. At a concentration of above 400 mg/L, it resulted in an oil-water interfacial tension of below 11 mN/m. It was capable of in-depth profile control,as demonstrated by the evident pressure increase at the end of the rock core into which it was injected. Its oil displacement efficiency was 8.66% higher than that of common polymers of the same viscosity. In addition, it could improve the recovery rate by up to 22.34% when used along with water for alternative injection.
The profile control capability of an active polymer was studied to address the issues of high heterogeneity and overall high water content with offshore Q Oilfields. The viscosity-improvement capacity and interfacial activity of the active polymer were examined by a rheometer and an interfacial tensiometer, respectively. An indoor physical simulation experiment was then performed to examine the active polymer for its injection properties, oil displacement capability, and displacement efficiency using various methods of injection. The experimental results showed that, compared to common polymers, the active polymer showed better viscosity-improvement capacity, with low concentration but high-viscosity. At a concentration of above 400 mg/L, it resulted in an oil-water interfacial tension of below 11 mN/m. It was capable of in-depth profile control,as demonstrated by the evident pressure increase at the end of the rock core into which it was injected. Its oil displacement efficiency was 8.66% higher than that of common polymers of the same viscosity. In addition, it could improve the recovery rate by up to 22.34% when used along with water for alternative injection.
引文
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[13]李丹,费春光,王楠楠.聚表剂溶液性能及矿场应用研究[J].长江大学学报(自然科学版),2013, 10(16):128-134. doi:10.16772/j.cnki.1673-1409.2013.16.046LI Dan, FEI Chunguang, WANG Nannan. Evaluation and analysis of field tests for polysurfactant[J]. Journal of Yangtze University(Natural Science Edition), 2013,10(16):128-134. doi:10.16772/j.cnki.1673-1409.2013.-16.046
[14]柏洁,张玉珍,王爱芳,等.旋滴法测定界面张力实验现象分析与方法探讨[J].油田化学,2016, 33(1):181-185. doi:10.19346/j.cnki.1000-4092.2016.01.039BAI Jie, ZHANG Yuzhen, WANG Aifang, et al. Analysis of experiment and method of interfacial tension measurement by spinning drop technique[J]. Oilfield Chemistry,2016, 33(1):181-185. doi:10.19346/j.cnki.1000-4092.-2016.01.039
[15]曹宝格,李华斌,罗平亚,等.疏水缔合水溶性聚合物AP4清水溶液的流变特征[J].油田化学,2005,22(2):168-172. doi:10.19346/j.cnki.1000-4092.2005.02.020CAO Baoge, LI Huabin, LUO Pingya, et al. Rheologic behavior of hydrophobically associating polymer AP4 solutions in fresh water[J]. Oilfield Chemistry, 2005, 22(2):168-172. doi:10.19346/j.cnki.1000-4092.2005.02.020
[16]李强,梁守成,吕鑫,等.缔合聚合物在多孔介质中的缔合行为研究[J].石油化工高等学校学报,2017, 30(6):37-41. doi:10.3969/j.issn.1006-396X.2017.06.008LI Qiang,LIANG Shoucheng,LV Xin,et al. Association behavior research of associating polymers in porous media[J]. Journal of Petrochemical Universities, 2017, 30(6):37-41. doi:10.3969/j.issn.1006-396X.2017.06.008
[17]孙尚如,朱怀江,罗健辉,等.疏水缔合聚合物临界缔合浓度研究[J].油田化学,2004, 21(2):173-176. doi:10.19346/j.cnki.1000-4092.2004.02.022SUN Shangru, ZHU Huaijiang, LUO Jianhui, et al. A study on critical associating concentrations of water soluble hydrophobically associating polymers for EOR[J]. Oilfield Chemistry, 2004, 21(2):173-176. doi:10.19346/j.-cnki. 1000-4092.2004.02.022
[18]张德富,卢祥国,李强,等.缔合程度对疏水缔合聚合物增黏性和抗剪切性影响研究[J].西安石油大学学报(自然科学版),2015,30(2):93-97.ZHANG Defu, LU Xiangguo, LI Qiang, et al. Effects of association degree on viscosity increasing and shearing resistance performance of hydrophobic associated polymer[J]. Journal of Xi'an Shiyou University(Natural Science Edition), 2015, 30(2):93-97.
[19]张继风.疏水缔合聚合物吸附滞留和渗流特性研究[D].成都:西南石油学院,2004.ZHANG Jifeng. The behavior of adsorption and retention and characteristic of flowing through the porous media of hydrophobically associating polymers[D]. Chengdu:Southwest Petroleum Institute, 2004.
[20]田敏,李楠.聚合物驱油机理及增效新措施[J].内蒙古石油化工,2010(18):34-36. doi:10.3969/j.issn.1006-7981.2010.18.016TIAN Min, LI Nan. Mechanism of polymer flooding and new measures for increasing efficiency[J]. Inner Mongolia Petrochemical Industry, 2010(18):34-36. doi:10.3969/-j.issn.1006-7981.2010.18.016
[21]姚峰.表面活性聚合物提高采收率微观驱油机理[J].复杂油气藏,2017, 10(2):76-79. doi:10.16181/j.cnki.-fzyqc.2017.02.017YAO Feng. The microscopic displacement mechanism of surface-active polymer flooding for improving oil recovery[J]. Complex Hydrocarbon Reservoirs, 2017, 10(2):76-79. doi:10.16181/j.cnki.fzyqc.2017.02.017
[22]黄菲.聚表剂乳化性能评价[J].化学工程与装备,2013(9):99-101.HUANG Fei. Evaluation of emulsifying property of polymeter[J]. Chemical Engineering&Equipment, 2013(9):99-101.
[23]石玲.多元接枝聚表剂性能评价及驱油机理研究[D].北京:中国科学院渗流流体力学研究所,2008.SHI Ling. Study on performance evaluation and mechanism of polymer surfactants[D]. Beijing:Institute of Porous Flow and Fluid Mechanics, Chinese Academy of Sciences, 2008.
[2]刘凤霞,谢诗章,魏子扬.海上油田水平井调剖效果分析及认识[J].石油化工应用,2017, 36(5):35-47. doi:10.3969/j.issn.1673-5285.2017.05.010LIU Fengxia, XIE Shizhang, WEI Ziyang. Exploration and practice of profile control on horizontal well[J]. Petrochemical Industry Application, 2017, 36(5):35-47. doi:10.3969/j.issn.1673-5285.2017.05.010
[3]孟祥海,宋宏宇,王楠,等.渤海Q油田水驱后孔喉变化特征研究[J].当代化工,2018,47(2):305-308. doi:10.13840/j.cnki.cn21-1457/tq.2018.02.024MENG Xianghai, SONG Hongyu, WANG Nan, et al. Research on pore throat characteristics of Bohai Q Oilfield after water flooding[J]. Contemporary Chemical Industry,2018, 47(2):305-308. doi:10.13840/j.cnki.cn21-1457/-tq.2018.02.024
[4]顾锡奎,杜芳艳,王小泉.化学深部调驱技术现状与进展[J].石油化工应用,2009, 28(3):4-7. doi:10.3969/-j.issn. 1673-5285.2009.03.002GU Xikui, DU Fangyan, WANG Xiaoquan. Current situation and development of chemical deep oil displacement regulation technology[J]. Petrochemical Industry Application, 2009, 28(3):4-7. doi:10.3969/j.issn.1673-5285.-2009.03.002
[5]田玉芹,陈雷,张冬会,等.一种新型活性高分子驱油体系的研制与评价[J]石油天然气学报(江汉石油学院学报),2008,30(2):579-581. doi:10.3969/j.issn.1000-9752.2008.02.065TIAN Yuqin, CHEN Lei, ZHANG Donghui, et al. Development and evaluation of a new active polymer flooding system[J]. Journal of Oil and Gas Technology, 2008,30(2):579-581. doi:10.3969/j.issn.1000-9752.2008.02.-065
[6]闫丽萍.新型驱油剂聚表剂的特性及驱油机理研究[J].长江大学学报(自然科学版),2014, 11(26):110-112.doi:10.16772/j.cnki.1673-1409.2014.26.030YAN Liping. Analysis of characteristics and oil displacement mechanism of new oil displacement agent-polymersurfactant[J]. Journal of Yangtze University(Natural Science Edition), 2014, 11(26):110-112. doi:10.16772/-j.cnki. 1673-1409.2014.26.030
[7] PAL N, BABU K, MANDAL A. Surface tension, dynamic light scattering and rheological studies of a new polymeric surfactant for application in enhanced oil recovery[J].Journal of Petroleum Science and Engineering, 2016, 146:591-600. doi:10.1016/j.petrol.2016.07.023
[8]李轶超.活性聚合物及其性能评价[J].油气开采,2016,42(6):34. doi:10.3969/j.issn.1003-6490.2016.06.026LI Yichao. Active polymers and their performance evaluation[J]. Oil and Gas Production, 2016, 42(6):34. doi:10.3969/j.issn. 1003-6490.2016.06.026
[9] KUMAR S, MANDAL A. Rheological properties and performance evaluation of synthesized anionic polymeric surfactant for its application in enhanced oil recovery[J].Polymer, 2017, 120:30-42. doi:10.1016/j.polymer.2017.-05.051
[10] KUMAR S, SAXENA N, MANDAL A. Synthesis and evaluation of physicochemical properties of anionic polymeric surfactant derived from Jatropha oil for application in enhanced oil recovery[J]. Journal of Industrial and Engineering Chemistry, 2016, 43:106-116. doi:10.1016/-j.jiec.2016.07.055
[11]赵利.聚表剂的性能研究[D].大庆:大庆石油学院,2010.ZHAO Li. Study on evaluation of surface-active poly.mer[D]. Daqing:Daqing Petroleum Institude, 2010.
[12]马丽梅.南四区东部聚驱后聚表剂提高采收率及效果分析[D].大庆:大庆石油学院,2009.MA Limei. EOR and effective analysis of polymer surfactants in the post-polymer flooding in the eastern of Southern Fourth Block[D]. Daqing:Daqing Petroleum Institude,2009.
[13]李丹,费春光,王楠楠.聚表剂溶液性能及矿场应用研究[J].长江大学学报(自然科学版),2013, 10(16):128-134. doi:10.16772/j.cnki.1673-1409.2013.16.046LI Dan, FEI Chunguang, WANG Nannan. Evaluation and analysis of field tests for polysurfactant[J]. Journal of Yangtze University(Natural Science Edition), 2013,10(16):128-134. doi:10.16772/j.cnki.1673-1409.2013.-16.046
[14]柏洁,张玉珍,王爱芳,等.旋滴法测定界面张力实验现象分析与方法探讨[J].油田化学,2016, 33(1):181-185. doi:10.19346/j.cnki.1000-4092.2016.01.039BAI Jie, ZHANG Yuzhen, WANG Aifang, et al. Analysis of experiment and method of interfacial tension measurement by spinning drop technique[J]. Oilfield Chemistry,2016, 33(1):181-185. doi:10.19346/j.cnki.1000-4092.-2016.01.039
[15]曹宝格,李华斌,罗平亚,等.疏水缔合水溶性聚合物AP4清水溶液的流变特征[J].油田化学,2005,22(2):168-172. doi:10.19346/j.cnki.1000-4092.2005.02.020CAO Baoge, LI Huabin, LUO Pingya, et al. Rheologic behavior of hydrophobically associating polymer AP4 solutions in fresh water[J]. Oilfield Chemistry, 2005, 22(2):168-172. doi:10.19346/j.cnki.1000-4092.2005.02.020
[16]李强,梁守成,吕鑫,等.缔合聚合物在多孔介质中的缔合行为研究[J].石油化工高等学校学报,2017, 30(6):37-41. doi:10.3969/j.issn.1006-396X.2017.06.008LI Qiang,LIANG Shoucheng,LV Xin,et al. Association behavior research of associating polymers in porous media[J]. Journal of Petrochemical Universities, 2017, 30(6):37-41. doi:10.3969/j.issn.1006-396X.2017.06.008
[17]孙尚如,朱怀江,罗健辉,等.疏水缔合聚合物临界缔合浓度研究[J].油田化学,2004, 21(2):173-176. doi:10.19346/j.cnki.1000-4092.2004.02.022SUN Shangru, ZHU Huaijiang, LUO Jianhui, et al. A study on critical associating concentrations of water soluble hydrophobically associating polymers for EOR[J]. Oilfield Chemistry, 2004, 21(2):173-176. doi:10.19346/j.-cnki. 1000-4092.2004.02.022
[18]张德富,卢祥国,李强,等.缔合程度对疏水缔合聚合物增黏性和抗剪切性影响研究[J].西安石油大学学报(自然科学版),2015,30(2):93-97.ZHANG Defu, LU Xiangguo, LI Qiang, et al. Effects of association degree on viscosity increasing and shearing resistance performance of hydrophobic associated polymer[J]. Journal of Xi'an Shiyou University(Natural Science Edition), 2015, 30(2):93-97.
[19]张继风.疏水缔合聚合物吸附滞留和渗流特性研究[D].成都:西南石油学院,2004.ZHANG Jifeng. The behavior of adsorption and retention and characteristic of flowing through the porous media of hydrophobically associating polymers[D]. Chengdu:Southwest Petroleum Institute, 2004.
[20]田敏,李楠.聚合物驱油机理及增效新措施[J].内蒙古石油化工,2010(18):34-36. doi:10.3969/j.issn.1006-7981.2010.18.016TIAN Min, LI Nan. Mechanism of polymer flooding and new measures for increasing efficiency[J]. Inner Mongolia Petrochemical Industry, 2010(18):34-36. doi:10.3969/-j.issn.1006-7981.2010.18.016
[21]姚峰.表面活性聚合物提高采收率微观驱油机理[J].复杂油气藏,2017, 10(2):76-79. doi:10.16181/j.cnki.-fzyqc.2017.02.017YAO Feng. The microscopic displacement mechanism of surface-active polymer flooding for improving oil recovery[J]. Complex Hydrocarbon Reservoirs, 2017, 10(2):76-79. doi:10.16181/j.cnki.fzyqc.2017.02.017
[22]黄菲.聚表剂乳化性能评价[J].化学工程与装备,2013(9):99-101.HUANG Fei. Evaluation of emulsifying property of polymeter[J]. Chemical Engineering&Equipment, 2013(9):99-101.
[23]石玲.多元接枝聚表剂性能评价及驱油机理研究[D].北京:中国科学院渗流流体力学研究所,2008.SHI Ling. Study on performance evaluation and mechanism of polymer surfactants[D]. Beijing:Institute of Porous Flow and Fluid Mechanics, Chinese Academy of Sciences, 2008.