Invention Grant
- Patent Title: Wide temperature range cement retarder
- Patent Title (中): 宽温度范围水泥缓凝剂
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Application No.: US13458718Application Date: 2012-04-27
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Publication No.: US09309153B2Publication Date: 2016-04-12
- Inventor: Tushar Sureshgiri Gosavi , Ramesh Muthusamy , Rahul Chandrakant Patil , Sandip Prabhakar Patil
- Applicant: Tushar Sureshgiri Gosavi , Ramesh Muthusamy , Rahul Chandrakant Patil , Sandip Prabhakar Patil
- Applicant Address: US TX Houston
- Assignee: Halliburton Energy Services, Inc.
- Current Assignee: Halliburton Energy Services, Inc.
- Current Assignee Address: US TX Houston
- Agency: Baker Botts L.L.P.
- Agent Craig W. Roddy
- Main IPC: C04B28/02
- IPC: C04B28/02 ; C09K8/467

Abstract:
According to an embodiment, a composition that can be used in cementing. The composition includes at least: (i) a hydraulic cement; (ii) a copolymer comprising at least the monomeric units (a) through (d) of the following formula: wherein the monomeric units (a) through (d) can be any sequence and any proportion in the copolymer. With water, the composition of the hydraulic cement and such a copolymer becomes a cement composition. According to the method, the cement composition is introduced into a well and allowed to set in the well.
Public/Granted literature
- US20130284439A1 WIDE TEMPERATURE RANGE CEMENT RETARDER Public/Granted day:2013-10-31
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