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公开(公告)号:US20150299555A1
公开(公告)日:2015-10-22
申请号:US14647814
申请日:2013-11-29
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor: Bernard Piot , Narmina Finn
IPC: C09K8/467 , E21B33/138
CPC classification number: C09K8/467 , C04B24/006 , C04B24/122 , C04B28/04 , E21B33/138 , C04B38/02 , C04B2103/22 , C04B2103/408 , C04B2103/46 , C04B2103/50 , C04B22/16 , C04B24/04 , C04B24/06 , C04B24/10 , C04B24/18
Abstract: An additive for Portland-cement slurries comprises an alkanolamine polyborate. When added in concert with a set retarder, the alkanolamine polyborate minimizes or prevents premature gelation during placement in a subterranean well. The additive is particularly useful for highly reactive cements, and may reduce the amount of set retarder required to achieve a given placement time.
Abstract translation: 用于波特兰 - 水泥浆料的添加剂包括链烷醇胺聚硼酸酯。 当与凝固缓凝剂一起添加时,链烷醇胺聚硼酸盐在放置在地下井中时最小化或防止过早凝胶化。 添加剂对于高反应性水泥特别有用,并且可以减少实现给定放置时间所需的凝固缓凝剂的量。