高阳潜山高温井集输系统用缓蚀防垢剂研究

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DOI：10.3969/j.issn.1001-2206.2025.03.012

Corrosion and scale inhibitors for high-temperature well gathering system in Gaoyang buried hills

ZHANG Zhi，SHENG Nan，GAO Xiaonan，YANG Jing，YU Yue，ZHANG Xiaofang No.1 Oil ProductionPlant of Huabei Oilfield Company，Renqiu O62550， China

Abstract：LocateditheGaoyangburiedhill，teigmperaturewellXL-19hasschprobemsasorosn，saling，pforation andleakageduringtheproductionprocssHeatresistatcorosionandsaleibiorsforthewellarenededtoestuddAftern sitesamplingoftewell，alongwithphysicalandchemicalinspectioandanalysisofwaterqualitygas，andsaleamples，the CO2 ratio in the associated gas was determined to be 63.1% .CO dissolved in water will promote CaCO scaling and aggravate corrosion. A gas 2 3

liquid separator control in thewell mouth can effectivelyreduce the impact of CO 2 ，Ahigh-temperature and high-pressure corrosion testerwasappliedtosimuatetheonsitesituationandconductahigh-temperatureandhigh-pressretestforthefluidproducedfrom wellXL-19.Underteonsitesiation，teproducedfudwasfoundtoeighlycorosivetotubes.Bytestaticweightlosethod， high-temperaurendatmosphericpressretest，andscaleinibitorabilityevaluatio，thefourcorosonandscaleinhbitorswere screened and evaluated. The two inhibitors，XST-HZ- 07# and RX-HZ- 04# ，turn out to be better in corrosion and scale inhibition ability and can meet the requirement with a dosing concentration of 50mg/L

Keywords：Gaoyang buried hill; high-temperature well; corrosion and scaling; corrosionand scale inhibitor

华北油田的地热资源具有分布广、层系多、资源总量大、地温场异常等特点，处于开发后期的古潜山油藏表现得尤为突出[。（剩余4012字）