Invention Grant
- Patent Title: Crosslinking chitosan for reducing permeability in a well
-
Application No.: US13887536Application Date: 2013-05-06
-
Publication No.: US09611420B2Publication Date: 2017-04-04
- Inventor: Shoy C. George , Prajakta Ratnakar Patil , Prasanta Das
- Applicant: Halliburton Energy Services, Inc.
- 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 Roddy
- Main IPC: C09K8/514
- IPC: C09K8/514 ; C09K8/512 ; C09K8/575
Abstract:
A composition including: (a) an aqueous phase; (b) a chitosan-based compound dispersed or dissolved in the aqueous phase; and (c) a crosslinker dispersed or dissolved in the aqueous phase, wherein the crosslinker has at least two functional groups independently selected from the group consisting of aldehyde, carboxylic acid, and carboxylate. A method including the step of introducing a composition according to the invention into a treatment zone of a well.
Public/Granted literature
- US20140329724A1 Crosslinking Chitosan for Reducing Permeability in a Well Public/Granted day:2014-11-06
Information query
IPC分类:
