Invention Grant
- Patent Title: Drill-in fluids and associated methods
- Patent Title (中): 钻井液和相关方法
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Application No.: US11523908Application Date: 2006-09-20
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Publication No.: US07678742B2Publication Date: 2010-03-16
- Inventor: Trinidad Munoz, Jr. , Larry S. Eoff
- Applicant: Trinidad Munoz, Jr. , Larry S. Eoff
- Applicant Address: US OK Duncan
- Assignee: Halliburton Energy Services, Inc.
- Current Assignee: Halliburton Energy Services, Inc.
- Current Assignee Address: US OK Duncan
- Agency: Baker Botts, LLP
- Agent Craig W. Roddy
- Main IPC: C08B37/00
- IPC: C08B37/00

Abstract:
Of the many methods provided herein, the present invention provides a method comprising: providing a drill-in fluid that comprises an aqueous base fluid, a viscosifier, a relative permeability modifier fluid loss control additive, and a degradable bridging agent comprising a degradable material capable of undergoing an irreversible degradation downhole; placing the drill-in fluid in a subterranean formation; and allowing the relative permeability modifier fluid loss control additive to reduce fluid loss from the drill-in fluid to the subterranean formation. Another example is a method of degrading a filter cake in a subterranean formation comprising: providing a filter cake produced by a drill-in fluid that comprises an aqueous base fluid, a viscosifier, a relative permeability modifier fluid loss control additive, and a degradable bridging agent comprising a degradable material capable of undergoing an irreversible degradation downhole; and allowing the degradable bridging agent to degrade.
Public/Granted literature
- US20080070805A1 Drill-in fluids and associated methods Public/Granted day:2008-03-20
Information query