公开(公告)号：US4425463A

公开(公告)日：1984-01-10

申请号：US416934

申请日：1982-09-13

申请人： Thad O. Walker ,  S. Richard Turner ,  Robert D. Lundberg ,  Warren A. Thaler ,  Dennis G. Pfeiffer

发明人： Thad O. Walker ,  S. Richard Turner ,  Robert D. Lundberg ,  Warren A. Thaler ,  Dennis G. Pfeiffer

IPC分类号： C09K8/36 ,  C08K3/24 ,  C08K3/34 ,  C08L25/08 ,  C09K7/02

CPC分类号： C09K8/36 ,  Y10S507/901 ,  Y10S507/91

摘要： The present invention relates to mixtures of sulfonated thermoplastic polymers and amine-treated clays which function as viscosification agents when added to oil-based drilling muds which are the fluids used to maintain pressure, cool drill bits and lift cuttings from the holes in the drilling operation for oil and gas wells. The sulfonated thermoplastic polymers have about 5 to about 100 meq. of sulfonate groups per 100 grams of the sulfonated thermoplastic polymer, wherein the sulfonated groups are neutralized with a metallic cation or an amine or ammonium counterion. A polar cosolvent can optionally be added to the mixture of oil drilling mud and sulfonated thermoplastic polymer, wherein the polar cosolvent increases the solubility of the sulfonated thermoplastic polymer in the oil drilling mud by decreasing the strong ionic interactions between the sulfonate groups of the sulfonated polymer.

摘要翻译： 本发明涉及磺化热塑性聚合物和胺处理粘土的混合物，当加入油基钻井泥浆中时，其作为增粘剂起作用，油基钻井泥浆是用于在钻井操作中从孔中保持压力的液体，冷钻头和提升切屑 用于油气井。 磺化热塑性聚合物具有约5至约100meq。 的磺酸盐基团/ 100克磺化热塑性聚合物，其中磺化基团被金属阳离子或胺或铵抗衡离子中和。 可以任选地将极性助溶剂加入到油钻泥浆和磺化热塑性聚合物的混合物中，其中极性助溶剂通过降低磺化聚合物的磺酸盐基团之间的强离子相互作用而增加磺化热塑性聚合物在石油钻井泥浆中的溶解度 。