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近年来,华北石油管理局第三钻井公司针对华北油田冀中地区、二连地区、冀东油田油气开发及固井工程施工的实际需要,在油井水泥外加剂的研制与应用方面做了大量的工作,优选出了水泥外加剂系列和不同的施工配方,较好地解决了固井过程中所遇到的许多技术难题。固井质量、固井优质率明显提高。目前较为常用的是G级和D级两种油井水泥。在使用过程中,G级油井水泥有十几种牌号不同的生产厂家,质量性能差异较大,甚至同一生产厂家同一个牌号不同生产批号的油井水泥,所配出的水泥浆性能也相差很大,尤其是流动度指标差别更大,因此给固井施工带来许多不便,同时也给油井水泥外加剂的使用增加了难度。为了满足固井工程的施工要求,必需通过油井水泥外加剂来调整水泥浆的性能。
In recent years, North China Petroleum Administration Third Drilling Company in response to the North China Oilfield Jizhong area, Erlian area, Jidong Oilfield oil and gas development and cementing engineering construction of the actual needs of oil well cement additives in the development and application of a large number of Work, preferred a series of cement admixtures and different construction formula, a better solution to the cementing process encountered many technical problems. Cementing quality, cementing quality was significantly improved. Currently more commonly used are G grade and D grade two kinds of well cement. In the course of using, there are dozens of grades G oil well cement different manufacturers, the quality of performance differences, even the same manufacturer with a different production lot number of well cement, the distribution of the slurry performance is also very different , Especially the difference in fluidity index is greater, which brings many inconveniences to cementing construction and also makes it more difficult to use oil well cement admixtures. In order to meet the cementing project construction requirements, it is necessary to adjust the performance of the cement slurry through the oil well cement admixture.