Oil well cleaning antiscale

• Main Author: DANFENG,XIE XIAO
• Format: Patent
• Language: Chinese; English
• Published: 01.09.2004
• Edition: 7
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS

The invention relates to the field of oil field chemistry, in particular an antiscaling compound for oil well, wherein its proportion by weight are, HCL : Hac : organic quarternary ammonium salt 1CT1-3 : dodecylbenzene sulfonic acid sodium and alkyl phenol polyoxyethylene ether surface active agent composite (weight ratio 4 : 6) : industrial benzine naphtha : ethylene glycol monobutyl ether or ethanol : organophosphorus ester or salt : octadecyl alcohol polyoxyethylene ether : water = 5í½10úÑ:3í½5úÑ:0.5í½1.0úÑ:0.4í½0.8úÑ:5í½10úÑ:5í½10úÑ:0.2í½0.6úÑ:0.2í½0.6úÑ:60í½80úÑ. The antiscaling compound can not only dissolve non-organic scale, but also dissolve organic scale. 本发明涉及油田化学领域，是一种油井用清防垢剂，配方按其重量比为：HCl∶HAc∶有机季胺盐1CT1-3∶十二烷基苯磺酸钠烷基酚聚氧乙烯醚表面活性剂复配物(重量比例：4∶6)∶工业石脑油∶乙二醇单丁醚或乙醇∶有机磷酸酯或盐∶十八烷醇聚氧乙烯醚∶水＝5～10％∶3～5％∶0.5～1.0％∶0.4～0.8％∶5～10％∶5～10％∶0.2～0.6％∶0.2～0.6％∶60～80％。它不但能溶解无机垢，而且能溶有机垢，具有可以有效地延长油井因垢的检泵周期，保证油井正常生产，在零下40℃以内均可使用，满足北方地区冬季施工，该清防垢剂为低毒、低伤害的酸性液体，易于配制，配制后的清防垢剂价格适宜等优点。