CAJ | 학술논문

油砂山油田注水开发后原油集输管线一些区段结垢较为严重。对该油田的结垢情况进行了调查，采集了大量垢样，对结垢物进行了定性鉴定、定量分析，确定结垢物的主要组分为硫酸钡锶；根据采出水离子组成分析、地层岩石钡锶元素分析结果，初步判定采出水中结垢离子钡和锶并非来自地层岩石矿物，而是来自侵入地层的泥浆加重剂重晶石及天青石。
유사산유전주수개발후원유집수관선일사구단결구교위엄중。대해유전적결구정황진행료조사，채집료대량구양，대결구물진행료정성감정、정량분석，학정결구물적주요조분위류산패송；근거채출수리자조성분석、지층암석패송원소분석결과，초보판정채출수중결구리자패화송병비래자지층암석광물，이시래자침입지층적니장가중제중정석급천청석。
Heavy scale precipitation in some sections of crude oil gathering pipelines becomes a severe problem at Youshashan Oil fields in Qinghai in 1—2 years after starting reservoir waterflooding. A large number of scaled substances, produced waters, and formation rock cores are taken to determine their chemical composition. It is found that the principal part of the scaled substances(76%) is barium/strontium(0.75/0.25) sulfates; the produced waters from the producing areas( and wells) are rich in Ba2+/Sr2+ and/or in SO2-4 and highly incompatible and scale-creating when mixed; the formation rock cores contain very little amount of Ba2+ and Sr2+ and can not be considered as Ba2+/Sr2+ source; the later might be the barite and celestite incursive from the drilling mud into the borehole and dissolved out in past 40 years while the wells were twice closed for long time.