- Patent Title: Viscoelastic surfactant based wellbore fluids and methods of use
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Application No.: US14576754Application Date: 2014-12-19
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Publication No.: US09353306B2Publication Date: 2016-05-31
- Inventor: Charles Svoboda , LaTosha Moore , Frank E. Evans
- Applicant: M-I L.L.C.
- Applicant Address: US TX Houston
- Assignee: M-I L.L.C.
- Current Assignee: M-I L.L.C.
- Current Assignee Address: US TX Houston
- Main IPC: C09K8/20
- IPC: C09K8/20 ; E21B43/16 ; E21B21/06 ; C09K8/08 ; E21B7/00 ; E21B21/00 ; E21B43/04
Abstract:
A wellbore fluid that includes an aqueous based fluid; an amphoteric, viscoelastic surfactant; and a modified starch is disclosed. Methods of drilling subterranean wells, methods of reducing the loss of fluid out of subterranean wells, and methods of completing wellbores using aqueous-based fluids having an ampoteric, viscoelastic surfactant and a modified starch are also disclosed.
Public/Granted literature
- US20150101805A1 VISCOELASTIC SURFACTANT BASED WELLBORE FLUIDS AND METHODS OF USE Public/Granted day:2015-04-16
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