Oil-soluble DRA Development and Application
- 作者：Zhengjun LongYarong FuDongqing LiYuanhong CAI
- 会议时间：2011-11-01
- 关键词：Oil-soluble ; DRA ; Wax viscosity ; Wellhead back pressure
- 作者单位：Zhengjun Long(Chongqing University of Science &Technology, chongqing,400042,China)Yarong Fu(Oil Production Plant No.5, Huabei Oilfield, Xinji 052360, China)Dongqing Li(Petroleum Production Technology Research Institute, Huabei Oilfield, Renqiu 062552, China)Yuanhong CAI(Downhole Operation Company, Chuangqing Drilling Corporation, Chengdu 610051,Chnina)
- 母体文献：2011全国特殊气藏开发技术研讨会论文集
- 会议名称：2011全国特殊气藏开发技术研讨会
- 会议地点：重庆
- 主办单位：重庆市科学技术协会
- 语种：chi
摘要
To solve the single tube gathering process paraffin oil viscosity reduction shaft and gathering the problem of high back pressure.Technical application of crude oil pour point depressant, mixed ester, benzene, ethylene oxide such as octylphenol ether compound by an oil-soluble DRA.Dosage in the 50 ~ 100mg / l to meet the water when the wellbore is less than 25% of the wax viscosity and single-tube process requirements gathering, can be compared to the multi-port wells, monitoring data before and after dosing showed that the crude oil after dosing freezing point decreased 5.6 ℃, the average rate of 87.4% viscosity reduction, the average rate of 91.5% paraffin.Pipeline wellhead back pressure reduced by 20 to 30 percentage points.