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METHOD OF SELECTING POTENTIALLY EFFICIENT REAGENTS FOR REMOVAL AND PREVENTION OF RESINOUS-PARAFFIN ACCUMULATIONS
METHOD OF SELECTING POTENTIALLY EFFICIENT REAGENTS FOR REMOVAL AND PREVENTION OF RESINOUS-PARAFFIN ACCUMULATIONS
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机译:去除和防止树脂石蜡积聚的潜在有效试剂的选择方法
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摘要
FIELD: oil producing industry, mainly, development of deposits of paraffin crude oils with use of chemical reagents for removal and prevention of resinous-paraffin accumulations. SUBSTANCE: method includes treatment of said oil and reagent with electromagnetic field; measurement of dielectric characteristics of crude oil within frequency range of 107-109 Hz under temperature and pressure of given deposit; determination of frequencies fmo, fmr, corresponding to maximum values of loss-angle tangent for oil and reagent, and frequencies f1o, f2o, f1r, f2r from the following expression where tgδo is loss-angle tangent for oil; tgδmo is maximum loss-angle tangent for oil; tgδr is loss-angle tangent for reagent; tgδmr is maximum loss-angle tangent for reagent; f1o, f2o are frequencies of electromagnetic field at which tgδo= 0,7tgδmo; f1r, f2r are frequencies of electromagnetic field at which tgδr= 0,7tgδmr. Then potentially efficient reagents are selected on the assumption that at least one of frequencies fmr, f1r and f2r is found within interval f2o-f1o. Temperature range within which dielectric characteristics are measured, shall include temperature of beginning of paraffin crystallization in said oil and which is different for various oils. EFFECT: higher accuracy of selection of potentially efficient reagents for removal and prevention of resinous-paraffin accumulations at said oil field with due consideration of oil properties and oil pool physico-geological conditions. 3 dwg, 3 ex
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机译:领域:石油生产工业,主要是利用化学试剂开发石蜡原油沉积物,以去除和防止树脂石蜡积聚。物质:该方法包括用电磁场处理所述油和试剂。在给定矿床的温度和压力下,在10 7 Sup> -10 9 Sup> Hz频率范围内测量原油的介电特性;确定油和试剂的损耗角正切最大值和频率f mo Sub>,f mr Sub>和频率f 1o Sub>,f 2o Sub>,f 1r Sub>,f 2r Sub>来自以下表达式,其中tgδ o Sub>是油的损耗角正切; tgδ mo Sub>是油的最大损耗角正切; tgδ r Sub>是试剂的损耗角正切; tgδ mr Sub>是试剂的最大损耗角正切; f 1o Sub>,f 2o Sub>是tgδ o Sub> =0,7tgδ mo Sub>时的电磁场频率; f 1r Sub>,f 2r Sub>是tgδ r Sub> =0,7tgδ mr Sub>时的电磁场频率。然后,假定在间隔f mr Sub>,f 1r Sub>和f 2r Sub>中至少有一个出现频率,则选择可能有效的试剂。 Sub> 2o Sub> -f 1o Sub>。测量介电特性的温度范围应包括所述油中石蜡开始结晶的温度,并且对于各种油而言,温度是不同的。效果:在适当考虑油的性质和油藏的物理地质条件的情况下,可以更有效地选择潜在有效的试剂,以去除和防止所述油田中树脂石蜡的聚集。 3 dwg,3 ex
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