【摘要】 原油沥青质沉积形成的有机垢是造成油气层损害的主要原因之一,并且某些损害是永久性和不可逆的,因此有必要对原油中沥青质的沉积采取有效的预防和解除措施。使用所建立的评价方法,筛选出了能有效预防有机垢损害的修井液添加剂正电聚醇,以及用于解除有机垢损害的修井液添加剂L-01。正电聚醇分子链上的多个羟基具有较强的正电性和比沥青质更强的吸附能力,因此能够优先吸附在岩石表面上,形成保护层,从而起到很好的预防沥青质沉积的作用。L-01中的甲苯对沥青质具有很好的溶解能力,并且其中的石油磺酸(或盐酸)还对无机垢具有一定的溶解和解堵能力。在适宜的加量下,正电聚醇的抑制率可达到100%,而L-01的相对溶解度可达到80%以上。更多还原

【Abstract】 Organic Scale from asphaltene precipitation is one of main causes of formation damage, and some damage is permanent and inconvertible. Therefore to take some effective prevention and remove measures is very necessary. In this paper, through methods established by ourselves, positive polyglycol was evaluated and selected as excellent inhibitor with inhibiting efficiency of 100%, and L-01 can be used to remove organic scale with relative solubility of above 80%. Many hydroxyl groups have positive electricity and stronger adsorptive capacity, so positive polyglycol can adsorb on rock surface and form into protective layer. Toluene in L-01 has good solubility to asphaltene, and petroleum sulfonic acid and/or chlorhydric acid have certain soluble ability to the inorganic scale.更多还原