缝洞型油藏注氮气吞吐参数优化研究
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摘要
针对缝洞型油藏注气井低产低效的问题,基于AD19井的地质模型,研究周期注气量、注气速度、闷井时间、采液强度等参数对注气效果的影响,考虑地质因素的不确定性,建立不同充填类型的数值模型,形成不同充填条件下的注气参数优化图版。研究结果表明,砂泥充填的储集体,应该选择小注气量、低注气速度、低采液强度、长闷井时间的注气技术对策;垮塌充填的储集体,应该选择大注气量、高注气速度、高采液强度、短闷井时间的注气技术对策。实例研究表明,该图版的符合率达到78%,可以作为矿场注气参数选取的一种可靠依据。该研究为缝洞型油藏提质增效奠定了科学的理论基础。
Based on the geological model of Well AD19,the effects of periodic nitrogen injection volume,injection rate,soaking time,liquid production intensity and other parameters on nitrogen huff-puff performance are studied to enhance the production and efficiency. Considering the geology uncertainty,the numerical simulation models with different filling patterns are established to gain the corresponding optimization plates under different filling patterns.Research indicates that low nitrogen injection volume,low injection rate,low liquid production intensity,long soaking time are appropriate for the reservoir filling with sand and mud. High nitrogen injection volume,high injection rate,high liquid production intensity and short soaking time are appropriate for the reservoir with collapsed filling.Case study shows a coincidence rate of 78%,which can be used as a reliable basis for the optimization of field nitrogen injection parameters. This research could provide certain scientific theoretical foundation for enhancing fracture-cavity reservoir development performance.
Based on the geological model of Well AD19,the effects of periodic nitrogen injection volume,injection rate,soaking time,liquid production intensity and other parameters on nitrogen huff-puff performance are studied to enhance the production and efficiency. Considering the geology uncertainty,the numerical simulation models with different filling patterns are established to gain the corresponding optimization plates under different filling patterns.Research indicates that low nitrogen injection volume,low injection rate,low liquid production intensity,long soaking time are appropriate for the reservoir filling with sand and mud. High nitrogen injection volume,high injection rate,high liquid production intensity and short soaking time are appropriate for the reservoir with collapsed filling.Case study shows a coincidence rate of 78%,which can be used as a reliable basis for the optimization of field nitrogen injection parameters. This research could provide certain scientific theoretical foundation for enhancing fracture-cavity reservoir development performance.
引文
[1]惠健,刘学利,汪洋,等,塔河油田缝洞型油藏单井注氮气采油机理及实践[J].新疆石油地质,2015,36(1):75-76.
[2]张胜.轮古15区块奥陶系碳酸盐岩缝洞型储集体特征研究[D].成都:西南石油大学,2015.
[3]涂兴万.碳酸盐岩缝洞型油藏单井注水替油开采的成功实践[J].新疆石油地质,2008,29(6):735-736.
[4]解慧,李璐,杨占红,等.塔河油田缝洞型油藏单井注氮气影响因素研究[J].石油地质与工程,2015,29(4):134-135.
[5]丁志文,陈方方,谢恩,等.塔中M区奥陶系碳酸盐岩凝析气藏综合分类及开发技术对策[J].油气地质与采收率,2017,24(5):84-92.
[6]苏伟,侯吉瑞,赵腾,等.缝洞型碳酸盐岩油藏CO2单井吞吐生产特征及影响因素[J].油气地质与采收率,2017,24(6):108-113.
[7]韩杰,吴萧,江杰,等.塔中Ⅰ号气田西部鹰山组碳酸盐岩储层类型划分及储层连续性分析[J].油气地质与采收率,2016,23(1):14-21.
[8]赵凤兰,席园园,侯吉瑞,等.缝洞型碳酸盐岩油藏CO2注入方式及部位优化[J].油气地质与采收率,2017,24(2):67-72.
[9]苑登御,侯吉瑞,王志兴,等.塔河油田缝洞型碳酸盐岩油藏注氮气及注泡沫提高采收率研究[J].地质与勘探,2016,52(4):795-796.
[10]王建海,李娣,曾文广,等.塔河缝洞型油藏氮气+二氧化碳吞吐先导试验[J].大庆石油地质与开发,2015,34(6):111-112.
[11]苑登御,侯吉瑞,宋兆杰,等.塔河油田缝洞型碳酸盐岩油藏注水方式优选及注气提高采收率实验[J].东北石油大学学报,2015,39(6):102-110.
[12]胡蓉蓉,姚军,孙致学,等.塔河油田缝洞型碳酸盐岩油藏注气驱油提高采收率机理研究[J].西安石油大学学报(自然科学版),2015,30(2):49-53.
[13]张慧,刘中春,吕心瑞.塔河油田缝洞型油藏注气提高采收率机理研究[J].中国矿业,2016,25(增刊1):457-458.
[14]吕铁,刘中春.缝洞型油藏注氮气吞吐效果影响因素分析[J].特种油气藏,2015,22(6):116-117.
[15]赵冰冰,张承洲,游津津,等.缝洞型油藏注氮气吞吐影响因素研究[J].长江大学学报(自科版),2014,31(11):160-161.
[16]郑泽宇,朱倘仟,侯吉瑞,等.碳酸盐岩缝洞型油藏注氮气驱后剩余油可视化研究[J].油气地质与采收率,2016,23(2):93-97.
[17]侯吉瑞,张丽,李海波,等.碳酸盐岩缝洞型油藏氮气驱提高采收率的影响因素[J].油气地质与采收率,2015,22(5):64-68.
[18]王建海,李娣,曾文广,等.塔河缝洞型油藏注氮气工艺参数优化研究[J].断块油气田,2015,22(4):538-541.
[19]赵凤兰,屈鸣,吴颉衡,等.缝洞型碳酸盐岩油藏氮气驱效果影响因素[J].油气地质与采收率,2017,24(1):69-74.
[2]张胜.轮古15区块奥陶系碳酸盐岩缝洞型储集体特征研究[D].成都:西南石油大学,2015.
[3]涂兴万.碳酸盐岩缝洞型油藏单井注水替油开采的成功实践[J].新疆石油地质,2008,29(6):735-736.
[4]解慧,李璐,杨占红,等.塔河油田缝洞型油藏单井注氮气影响因素研究[J].石油地质与工程,2015,29(4):134-135.
[5]丁志文,陈方方,谢恩,等.塔中M区奥陶系碳酸盐岩凝析气藏综合分类及开发技术对策[J].油气地质与采收率,2017,24(5):84-92.
[6]苏伟,侯吉瑞,赵腾,等.缝洞型碳酸盐岩油藏CO2单井吞吐生产特征及影响因素[J].油气地质与采收率,2017,24(6):108-113.
[7]韩杰,吴萧,江杰,等.塔中Ⅰ号气田西部鹰山组碳酸盐岩储层类型划分及储层连续性分析[J].油气地质与采收率,2016,23(1):14-21.
[8]赵凤兰,席园园,侯吉瑞,等.缝洞型碳酸盐岩油藏CO2注入方式及部位优化[J].油气地质与采收率,2017,24(2):67-72.
[9]苑登御,侯吉瑞,王志兴,等.塔河油田缝洞型碳酸盐岩油藏注氮气及注泡沫提高采收率研究[J].地质与勘探,2016,52(4):795-796.
[10]王建海,李娣,曾文广,等.塔河缝洞型油藏氮气+二氧化碳吞吐先导试验[J].大庆石油地质与开发,2015,34(6):111-112.
[11]苑登御,侯吉瑞,宋兆杰,等.塔河油田缝洞型碳酸盐岩油藏注水方式优选及注气提高采收率实验[J].东北石油大学学报,2015,39(6):102-110.
[12]胡蓉蓉,姚军,孙致学,等.塔河油田缝洞型碳酸盐岩油藏注气驱油提高采收率机理研究[J].西安石油大学学报(自然科学版),2015,30(2):49-53.
[13]张慧,刘中春,吕心瑞.塔河油田缝洞型油藏注气提高采收率机理研究[J].中国矿业,2016,25(增刊1):457-458.
[14]吕铁,刘中春.缝洞型油藏注氮气吞吐效果影响因素分析[J].特种油气藏,2015,22(6):116-117.
[15]赵冰冰,张承洲,游津津,等.缝洞型油藏注氮气吞吐影响因素研究[J].长江大学学报(自科版),2014,31(11):160-161.
[16]郑泽宇,朱倘仟,侯吉瑞,等.碳酸盐岩缝洞型油藏注氮气驱后剩余油可视化研究[J].油气地质与采收率,2016,23(2):93-97.
[17]侯吉瑞,张丽,李海波,等.碳酸盐岩缝洞型油藏氮气驱提高采收率的影响因素[J].油气地质与采收率,2015,22(5):64-68.
[18]王建海,李娣,曾文广,等.塔河缝洞型油藏注氮气工艺参数优化研究[J].断块油气田,2015,22(4):538-541.
[19]赵凤兰,屈鸣,吴颉衡,等.缝洞型碳酸盐岩油藏氮气驱效果影响因素[J].油气地质与采收率,2017,24(1):69-74.