Invention Grant
US07935662B2 System, method, and apparatus for injection well clean-up operations
有权
用于注入井清理操作的系统,方法和装置
- Patent Title: System, method, and apparatus for injection well clean-up operations
- Patent Title (中): 用于注入井清理操作的系统,方法和装置
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Application No.: US12492196Application Date: 2009-06-26
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Publication No.: US07935662B2Publication Date: 2011-05-03
- Inventor: Mehmet Parlar , Balkrishna Gadiyar
- Applicant: Mehmet Parlar , Balkrishna Gadiyar
- Applicant Address: US TX Sugar Land
- Assignee: Schlumberger Technology Corporation
- Current Assignee: Schlumberger Technology Corporation
- Current Assignee Address: US TX Sugar Land
- Agent David G. Matthews; Rodney V. Warfford; Tim Curington
- Main IPC: C09K8/60
- IPC: C09K8/60 ; C09K8/14 ; C09K8/02 ; C09K8/68 ; C09K8/528 ; E21B43/16 ; E21B37/08

Abstract:
A method for removing drilling damage from a formation in a wellbore that has not been produced includes injecting a chemical-acting cleanup fluid and contacting it with a filtercake on a face of a formation of interest for a period of time sufficient to loosen some of the solids embedded in the filtercake. The method further includes circulating a solids removal fluid at a high rate through the wellbore across the face of the formation of interest, the solids removal fluid including a viscosifier, and positioning a second treatment fluid having a fluid loss control pill in the wellbore at the formation of interest. The method further includes degrading particles of the fluid loss control pill and degrading remaining bridging agent from the drilling fluid.
Public/Granted literature
- US20090301722A1 SYSTEM, METHOD, AND APPARATUS FOR INJECTION WELL CLEAN-UP OPERATIONS Public/Granted day:2009-12-10
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