Invention Grant
- Patent Title: Drilling fluid containing microspheres and use thereof
- Patent Title (中): 含微球的钻井液及其用途
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Application No.: US11867482Application Date: 2007-10-04
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Publication No.: US07767629B2Publication Date: 2010-08-03
- Inventor: Madeline P. Shinbach , Domasius Nwabunma
- Applicant: Madeline P. Shinbach , Domasius Nwabunma
- Applicant Address: US MN St. Paul
- Assignee: 3M Innovative Properties Company
- Current Assignee: 3M Innovative Properties Company
- Current Assignee Address: US MN St. Paul
- Agent Kent S. Kokko
- Main IPC: C09K8/12
- IPC: C09K8/12 ; C09K8/22 ; C09K8/32 ; E21B43/267
Abstract:
The present invention provides a drilling fluid composition and a method of drilling comprising a drilling fluid, which may be oil- or water-based, and a composite microsphere component. The invention drilling fluid composition advantageously reduces the density of a conventional fluid, reduces costs associated with pumping and overcomes problems associated with conventional gas-injection processes. The invention uses conventional drilling and pumping equipment, requires no sea-floor based pumps and may be easily pressure-controlled to maintain the pressure of the fluid.
Public/Granted literature
- US20080026956A1 DRILLING FLUID CONTAINING MICROSPHERES AND USE THEREOF Public/Granted day:2008-01-31
Information query
