公开(公告)号：US20150211330A1

公开(公告)日：2015-07-30

申请号：US14421995

申请日：2013-09-02

Applicant: Schlumberger Technology Corporation

Inventor： Fatma Daou ,  Craig Borman ,  Bernard Piot

IPC: E21B33/14 ,  C09K8/42

CPC classification number: E21B33/14 ,  C04B28/02 ,  C04B40/0675 ,  C04B2103/0045 ,  C09K8/42 ,  C09K8/467 ,  C04B24/26 ,  C04B24/2652 ,  C04B24/2682 ,  C04B24/36

Abstract: A cement for use in wells in which carbon dioxide is injected, stored or extracted, comprises elastomer particles. In the event of cement-matrix failure, or bonding failure between the cement/casing interface or the cement/borehole-wall interface, the elastomer particles swell when contacted by carbon dioxide. The swelling seals voids in the cement matrix, or along the bonding interfaces, thereby restoring zonal isolation.

Abstract translation: 用于注入，储存或提取二氧化碳的井中的水泥包含弹性体颗粒。 在水泥基体破坏或水泥/套管界面或水泥/井壁 - 界面之间的接合失效的情况下，弹性体颗粒在与二氧化碳接触时膨胀。 膨胀密封水泥基体中的空隙，或沿着粘合界面，由此恢复区带隔离。

公开(公告)号：US20170166800A1

公开(公告)日：2017-06-15

申请号：US15380263

申请日：2016-12-15

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Clara Carelli ,  Sylvaine Le Roy-Delage ,  Bernard Piot

IPC: C09K8/48 ,  C04B24/26 ,  C04B24/32 ,  C04B28/04 ,  C04B24/42

CPC classification number: C04B24/2676 ,  C04B28/04 ,  C04B2103/50 ,  C09K8/467 ,  Y02W30/96 ,  C04B2103/65 ,  C04B18/22 ,  C04B24/163 ,  C04B24/2623 ,  C04B24/2641 ,  C04B24/2682 ,  C04B24/32 ,  C04B24/38 ,  C04B24/383 ,  C04B24/42

Abstract: Well cementing compositions include an aqueous fluid, portland cement and an air entrainment suppressing agent. The air entrainment suppressing agent includes a blend of a silicone and polypropylene glycol, or a silicone that is functionalized with ether groups. Methods for preparing well cementing compositions comprise adding the air entrainment suppressing agent to the aqueous fluid, and combining the mixing fluid to a solid blend comprising portland cement and hydrophobic particles in a continuous process.

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。