Based on optimizing the weak gel flow adjusting agent, nanometer lubricating emulsifier, oil film forming agent and relevant formation protection measures, a drilling fluid for special wells was developed. 通过钻井液弱凝胶聚合物流型调节剂、纳米润滑乳化剂、油膜形成剂以及油气层保护暂堵方法的优选,研制开发出了一套性能优良的特殊工艺井钻井液体系。
Structure, properties and production of tamarind gum were introduced, and its applications in food industry were summarized, for example, taken as adding viscosity stabilizer, ice crystal stabilizer, gel forming agent and quality improver, and so on. 介绍了罗望子胶的结构、性能、生产及其在食品工业中用作增黏稳定剂、冰晶稳定剂、胶凝剂、品质改良剂等;