摘要
砾石充填完井作业时间长,质量控制难度大,充填效率难以保证,用于海上油田综合成本较高,工艺应用受限。研发一种新型预充填筛管,并在渤海QHD32-6油田调整井中使用。新型预充填防砂筛管是在车间充填砾石后,直接下入生产井完井防砂井段,依靠充填砾石层实现高效防砂,与传统预充填筛管相比,预充填的砾石不固结,密度低,亲油疏水,具有强自洁能力。现场使用表明:新型预充填筛管在挡砂精度、抗堵能力、下入阻力方面有显著优势,且具有部分控水功能,是可部分替代现场砾石充填防砂完井的新型防砂工具,可用于提速增效、增油控水,大位移水平井的高效防砂。
The completion operation of gravel packing takes long time,its quality control difficulty is high and its packing efficiency can be hardly ensured.When it is applied to offshore oilfields,its comprehensive cost is higher and its process application is limited.A new type of pre-packed screen was developed and applied in the adjustment well of Bohai QHD32-6 Oilfield,which could directly run into the sand control hole section of production well after it was packed with gravels at the workshop.It provided efficient sand control by virtue of gravel packing zone.Compared with the traditional pre-packed screen,the pre-packing gravel is unconsolidated,lipophilic and hydrophobic with low density and has strong self-cleaning ability.Its field application shows that this new type of pre-packed screen is remarkably advantageous in terms of sand retention accuracy,anti-plugging capacity and running resistance and it has the function of partial water control.Therefore,it is a new type of sand control tool that can partially replace the field gravel packing for sand control completion,and it can be used for the rate of penetration(ROP)and efficiency improvement,the oil production increase and water production control,and the efficient sand control in extended reach horizontal wells.
作者
董星亮
DONG Xingliang(CNOOC Consulting Center,Beijing 100028,China)
出处
《石油钻采工艺》
CAS
北大核心
2020年第4期414-416,共3页
Oil Drilling & Production Technology
关键词
完井
防砂筛管
砾石充填
预充填
渤海油田
well completion
sand control screen
gravel packing
pre-packed
Bohai Oilfield
