摘要
为了减少近井地层由于压实作用而受到的伤害,以及提高采油井产出率且延长开采周期,开展了水力喷砂射孔作业技术在伊拉克鲁迈拉油田现场的应用研究。通过建立地面射孔试验模具,进行地面的水力喷砂射孔及常规电缆射孔试验,试验后对模具进行解剖并对各自形成的孔眼进行测量,计算得出各自射孔后形成的孔眼面积;实施水力喷砂射孔的现场应用,对已经电缆传输射孔的油层进行水力喷砂射孔作业,比较作业前后单井日产油量。根据地面试验结果得出水力喷砂射孔形成的孔眼表面积是电缆传输射孔的2. 71倍,进行水力喷砂射孔现场作业,跟踪产油量,与喷砂射孔作业前相比,采油井不仅恢复了自喷能力而且日产油量提高了1. 5~1. 8倍,达到了预期的作业效果。相比电缆传输射孔,水力喷砂射孔能有效解除因电缆传输射孔造成的密闭圈,并扩展了油流通道,提高采油井产量。现场试验结果表明该技术相比电缆传输射孔更具优越性,应推广该技术在鲁迈拉油田的应用。
Research on the application of hydraulic jet perforation technology has been conducted to minimize the damage caused by near-wellbore compaction,and to improve oil recovery and extend the production period in Rumaila Oilfield.Through establishing the perforation test molds on surface,hydraulic jet perforation and conventional cable perforation test have been carried out respectively on the ground.The mould was dissected to measure the surface areas of perforation holes,after perforation.The hydraulic jet operation has been used for those pay zones that have been perforated by cable transmission method,and the daily oil productions of single well before and after operation was compared in the field.The surface test results showed that the surface areas of perforation hole by the hydraulic jet perforation was 2.71 times of that formed by cable transmission perforation method.The hydraulic jet perforation technology has been applied in Well R-110 to track the oil production,The well not only recovered its self-spraying ability,but also increased oil production by 1.5~1.8 times compared with the pre-operation,which achieved the expected operation effect.Compared with cable transmission perforation,hydraulic jet perforation can effectively relieve the closed loop caused by cable transmission perforation,expand the oil flow channels,and improve the oil production.Field test results show that the technology has superiority over cable transmission perforation,so as to popularize the application in Rumaila Oilfield.
作者
黄建东
赵瑞金
于永海
占焕校
李荣发
Huang Jiandongc;Zhao Ruijin;Yu Yonghai;Zhan Huanxiao;Li Rongfa(Drilling Company 3 of PetroChina Greatwall Drilling Engineering Company;Downhole Service Company of Daqing Oilfield Limted Company;Karamay Logging Engineering Company of Petrochina Xibu Drilling Engineering Company;Rumalia Project Department of Petrochina Middle East Company)
出处
《采油工程》
2019年第2期61-65,87,共6页
Oil Production Engineering
关键词
水力喷砂射孔
电缆传输射孔
作业流程
连续油管
鲁迈拉油田
hydraulic jet perforation
cable transmission perforation
operation process
coiled tubing
Rumaila Oilfield
