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在国外,固井工作十分重视水泥浆的全面设计和具体配方。固井水泥浆设计是固井服务公司的主要服务项目。本文介绍了目前垄断固井服务国际市场的哈里伯顿和道威尔两大公司的特点。列举了在水泥浆设计中应该考虑的主要因素:1.套管程序;2.地层情况;3.温度、压力的选择和时间表的决定;4.添加剂的选择;5.钻井条件和注水泥设备。叙述了包括固井注水泥、尾管注水泥、打水泥塞及挤水泥在内的水泥浆设计原则。还详细介绍了设计实例。
In foreign countries, cementing work attaches great importance to the comprehensive design and formulation of cement slurry. Cementing slurry design is the main service of cementing service company. This article describes the characteristics of the two major corporations, Halliburton and Dowell, currently in the international market for monolithic cementing services. Lists the main factors that should be considered in the design of grout: 1. casing procedures; 2. formation conditions; 3. temperature and pressure selection and schedule decisions; 4. choice of additives; 5. drilling conditions and cementing equipment. Describes the design principles of cement slurry, including cement injection cement, tail pipe cementing, cement plugs and squeeze cement. Also introduced in detail the design examples.