黄3长6区集输站结垢机理与防垢措施

Scaling Mechanism and Anti-scaling Measures of Huang 3 Chang 6 Gathering and Transportation Station

为了解决黄3长6区采出水结垢导致管线、设备堵塞而严重影响集输站运行的问题,通过对集输站和单井的水样、垢样进行分析,明确了黄3长6区结垢原因,针对性地开发阻垢药剂,并报道了现场应用情况。黄3长6区集输站垢堵严重的主要原因是单井采出水不配伍,导致站场集输系统硫酸钡锶结垢堵塞。开发的高效钡锶阻垢剂(HDTMPA、P-M-P(5000)质量比为4∶1),在加量为60 mg/L的情况下,对硫酸钡的阻垢率达到90.9%。室内适用评价实验表明,该阻垢剂对集输站A、B汇管模拟水的阻垢率高达90%和93%。现场应用结果表明,添加该阻垢剂可大幅降低A、B站场的结垢程度,有效解决了黄3长6区结垢问题,从而保障黄3长6区集输站长周期平稳运行。

To solve the problem of scaling in the produced water of Huang 3 Chang 6 area,which leads to pipelines and devices blockage and seriously affects the operation of the gathering and transmission stations,the scaling mechanisms in the Huang 3 Chang 6 area was clarified through the analysis of water and scale samples from the gathering station and single well,and targeted scale inhibitors was developed,in addition,the application of the scale inhibitor in the field was mentioned.it was determined that the main reason for severe scale blockage in the Huang 3 Chang 6 area gathering and transportation station was the incompatibility of single well produced water,which leaded to barium strontium sulfate scaling and blockage in gathering and transportation system.A highly efficient barium strontium scale inhibitor,mass ratio of HDTMPA to P-M-P(5000)being of 4∶1,was developed.The inhibition rate of barium sulfate scale was 90.9%when the concentration of the scale inhibitor was 60 mg/L.The indoor applicability evaluation test showed that the scale inhibition rates of the scale inhibitor on the simulated water of the A and B gathering station manifold was as high as 90%and 93%,respectively.the on-site application test of the scale inhibitor showed that the scale inhibitor significantly reduced the scaling degree in the gathering and transmission stations stations A and B,indicating that the application of the scale inhibitor could effectively solve the scaling problem and ensure the long-term stable operation of the Huang 3 Chang 6 area gathering and transmission stations.