低初黏调堵技术控制低效无效循环的应用
|
摘要
聚合物驱油转入后续水驱开发阶段,由于油水井之间低效无效循环条带的存在,开发效益整体变差。低初黏调堵剂是一种新型凝胶调剖剂,与常规凝胶调剖剂相比,其具有初始黏度低,成胶时间人为可控的特点,可以实现油层深部的封堵。该项技术应用于某区块26口注入井,高渗透率油层得到有效封堵,控制了低效无效循环。技术应用后,已累积增油0.066×10~4t,实现了控水增油的目标。
When polymer flooding is transformed into water flooding period, overall production economic benefits is getting worse for the inefficient& ineffective cycle channel existing between the injecting well and the producing well. The low initial viscosity profile modification agent is a new king of plugged gel. Compared with conventional plugged gel,the system initial viscosity is keeping low and the gelling time is controllable, so it has the better performance to plug deep reservoir. The technology was used in the 26 injecting wells, the high permeability layer is plugged effective, inefficient& ineffective cycle is better controlled. The technology application achieves the goal of controlling water and increasing oil production with cumulative oil increment660 tons.
When polymer flooding is transformed into water flooding period, overall production economic benefits is getting worse for the inefficient& ineffective cycle channel existing between the injecting well and the producing well. The low initial viscosity profile modification agent is a new king of plugged gel. Compared with conventional plugged gel,the system initial viscosity is keeping low and the gelling time is controllable, so it has the better performance to plug deep reservoir. The technology was used in the 26 injecting wells, the high permeability layer is plugged effective, inefficient& ineffective cycle is better controlled. The technology application achieves the goal of controlling water and increasing oil production with cumulative oil increment660 tons.
引文
[1]张光明,王正良.聚合物延迟交联深部调剖堵水技术研究[J].石油与天然气化工,2000,29(6):308-310.
[2]赵立峰.低强度凝胶型调剖剂的性能评价[J].中国石油和化工标准与质量,2013(17):103-105.
[3]熊生春,王业飞,何英,等.聚合物驱后交联聚合物深部调剖技术室内试验研究[J].油气地质与采收率,2005,12(6):77-80.
[4]郭兰磊.聚驱后油藏化学驱提高采收率技术及先导试验[J].大庆石油地质与开发,2014,33(1):122-126.
[5]白宝君,周佳,印鸣飞.聚丙烯酰胺类聚合物凝胶改善水驱波及技术现状及展望[J].石油勘探与开发,2015,42(4):481-487.
[6]孙明.注水开发砂岩油藏优势渗流通道识别与描述技术[J].新疆石油天然气,2009,5(1):51-53.
[7]李秀兰.优势渗流通道中的高速非达西渗流动态特征分析[J].石油地质与工程,2009,23(6):62-63.
[8]姜瑞丰,高腾飞.高含水环境下优势通道渗流特征解析[J].石化技术,2017,24(1):179.
[9]万雪峰.周期注采技术的研究与应用[J].石油石化节能,2013,3(5):11-12.
[2]赵立峰.低强度凝胶型调剖剂的性能评价[J].中国石油和化工标准与质量,2013(17):103-105.
[3]熊生春,王业飞,何英,等.聚合物驱后交联聚合物深部调剖技术室内试验研究[J].油气地质与采收率,2005,12(6):77-80.
[4]郭兰磊.聚驱后油藏化学驱提高采收率技术及先导试验[J].大庆石油地质与开发,2014,33(1):122-126.
[5]白宝君,周佳,印鸣飞.聚丙烯酰胺类聚合物凝胶改善水驱波及技术现状及展望[J].石油勘探与开发,2015,42(4):481-487.
[6]孙明.注水开发砂岩油藏优势渗流通道识别与描述技术[J].新疆石油天然气,2009,5(1):51-53.
[7]李秀兰.优势渗流通道中的高速非达西渗流动态特征分析[J].石油地质与工程,2009,23(6):62-63.
[8]姜瑞丰,高腾飞.高含水环境下优势通道渗流特征解析[J].石化技术,2017,24(1):179.
[9]万雪峰.周期注采技术的研究与应用[J].石油石化节能,2013,3(5):11-12.