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S_(24)降失水剂是石油部施工技术研究所和大港油田共同研制的一种国产油井水泥外加剂,一般加量为水泥重量的1～2%,即能使失水量由原浆的1600～2100毫升/7兆帕·30分降低到250毫升/7兆帕·30分以下。本文按API(Spec10)规范对加有S_(24)降失水剂的水泥浆性能进行了系统的研究,其结果表明:S_(24)能用于40～140℃的温度范围,能与多数缓凝剂、减阻剂相容,对水泥的适应性强,有一定的抗盐性。四年来,实行跟踪服务,产品销售成倍增长,目前已在大港、渤海、辽河和安徽等油田推广应用,均取得较好效果。
S_ (24) Fluid loss agent is a homemade oil well cement admixture jointly developed by the Ministry of Petroleum Construction Technology Research Institute and Dagang Oilfield. Generally, the amount of cement added is 1-2% of the weight of the cement, that is, 1600 to 2100 ml / 7 MPa · 30 minutes to 250 ml / 7 MPa · 30 minutes or less. According to API (Spec10), this paper systematically studies the properties of grout with S_ (24) fluid loss additive. The results show that S_ (24) can be used in the temperature range of 40 ~ 140 ℃, Retarder, drag reducing agent compatibility, strong adaptability to cement, a certain degree of salt resistance. In the past four years, tracking service and product sales have doubled in volume. At present, oilfields in Dagang, Bohai, Liaohe and Anhui have been popularized and applied, and achieved good results.