插层凝胶颗粒调驱剂的性能评价与现场试验
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摘要
针对常规调驱剂在哈得油田高温高矿化度油藏调驱效果差的问题,通过吸水膨胀实验、柔韧性实验、岩心驱替实验和现场先导试验对插层凝胶颗粒调驱剂进行了性能评价与现场应用。性能评价结果表明:该插层凝胶颗粒可均匀分散在溶液中,与地层水的配伍性良好;在哈得油田地层水条件下,颗粒吸水膨胀倍数达5倍以上,韧性系数达0.9以上,具有较好的耐温抗盐和吸水膨胀性能;向不同渗透率岩心注入插层凝胶颗粒,封堵率都达到90%以上。采用插层凝胶颗粒在哈得油田东河砂岩油组进行了深部调剖先导现场试验,截至2018年10月底,已累计增油1.7×10~4 t,取得了较好的开发效果。
Aiming at the problem of the conventional profile control agent which has poor effect in high temperature and high salinity reservoir of Hade oilfield, the performance evaluation and application of the intercalative gel particles control agent were taken through water swelling test, flexibility test, core flowing gradiometer test and field test. The results indicated that the intercalative gel particles can be uniformly dispersed in the solution, which has good cooperation with the formation water. The water-absorption expansion multiple of the particles is more than 5 times, and toughness factor can be more than 0.9 in formation water of Hade oilfield, Therefore the intercalative gel particles has better resistance to high temperature and high salinity. In the process of injecting the intercalative gel particles into cores with different permeability, the blocking rate of each group can reach more than 90%.The intercalative gel particles deep profile control agent was applied in Ha 4 block of Hade oilfield, which has obtained an accumulative oil increment by 17 000 t until the end of October 2018, and had good development effects.
Aiming at the problem of the conventional profile control agent which has poor effect in high temperature and high salinity reservoir of Hade oilfield, the performance evaluation and application of the intercalative gel particles control agent were taken through water swelling test, flexibility test, core flowing gradiometer test and field test. The results indicated that the intercalative gel particles can be uniformly dispersed in the solution, which has good cooperation with the formation water. The water-absorption expansion multiple of the particles is more than 5 times, and toughness factor can be more than 0.9 in formation water of Hade oilfield, Therefore the intercalative gel particles has better resistance to high temperature and high salinity. In the process of injecting the intercalative gel particles into cores with different permeability, the blocking rate of each group can reach more than 90%.The intercalative gel particles deep profile control agent was applied in Ha 4 block of Hade oilfield, which has obtained an accumulative oil increment by 17 000 t until the end of October 2018, and had good development effects.
引文
[1] 张云宝,薛宝庆,卢祥国.渤海油田多轮次凝胶调驱参数优化实验研究——以LD5-2油田A22井为例[J].石油与天然气化工,2015,44(4):87-92.
[2] 武建明,石彦,韩慧玲,等.聚合物微球调驱技术在沙南油田的研究与应用[J].石油与天然气化工,2015,44(6):82-84.
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[5] 康万利,徐浩,杨红斌,等.预交联凝胶颗粒膨胀性能的影响因素[J].石油与天然气化工,2014,43(6):662-665.
[6] 贺广庆,李长春,吕茂森,等.无机有机复合凝胶颗粒调剖剂的研制及矿场应用[J].油田化学,2006,23(4):334-336.
[7] 曹荣荣,朱家杰,杨海恩,等.预交联凝胶颗粒调剖剂的制备及性能研究[J].石油天然气学报,2014,36(12):233-235.
[8] EROL O,UNAL H I,SARI B.Synthesis,electrorheology,and creep behaviors of in situ intercalated polyindole/organo-montmorillonite conducting nanocomposite[J].Polymer Composite,2010,31(3):471-481.
[9] 林伟民,陈永浩,曹敏,等.深部调剖剂YG聚合物微球性能评价与应用[J].油田化学,2011,28(3):327-330.
[10] 蒲万芬,文彩琳,刘锐,等.NPLS颗粒调剖剂的研制与评价[J].化学研究与应用,2015,27(8):1134-1138.
[2] 武建明,石彦,韩慧玲,等.聚合物微球调驱技术在沙南油田的研究与应用[J].石油与天然气化工,2015,44(6):82-84.
[3] 徐辉,曹绪龙,石静,等.新型物理交联凝胶体系性能特点及调驱能力研究[J].石油与天然气化工,2018,47(1):69-73.
[4] 谭良柏,罗跃,杨欢,等.聚合物凝胶调剖体系的段塞组合优化及矿场应用[J].石油天然气学报,2012,34(12):140-142.
[5] 康万利,徐浩,杨红斌,等.预交联凝胶颗粒膨胀性能的影响因素[J].石油与天然气化工,2014,43(6):662-665.
[6] 贺广庆,李长春,吕茂森,等.无机有机复合凝胶颗粒调剖剂的研制及矿场应用[J].油田化学,2006,23(4):334-336.
[7] 曹荣荣,朱家杰,杨海恩,等.预交联凝胶颗粒调剖剂的制备及性能研究[J].石油天然气学报,2014,36(12):233-235.
[8] EROL O,UNAL H I,SARI B.Synthesis,electrorheology,and creep behaviors of in situ intercalated polyindole/organo-montmorillonite conducting nanocomposite[J].Polymer Composite,2010,31(3):471-481.
[9] 林伟民,陈永浩,曹敏,等.深部调剖剂YG聚合物微球性能评价与应用[J].油田化学,2011,28(3):327-330.
[10] 蒲万芬,文彩琳,刘锐,等.NPLS颗粒调剖剂的研制与评价[J].化学研究与应用,2015,27(8):1134-1138.