Invention Grant
- Patent Title: Core bit designed to control and reduce the cutting forces acting on a core of rock
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Application No.: US15529826Application Date: 2014-12-29
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Publication No.: US10954756B2Publication Date: 2021-03-23
- Inventor: Nuno da Silva , Ludovic Delmar , Didier Rousseau , Stephan Regnard
- 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 Thomas Rooney
- International Application: PCT/US2014/072499 WO 20141229
- International Announcement: WO2016/108812 WO 20160707
- Main IPC: E21B41/00
- IPC: E21B41/00 ; E21B10/48 ; E21B10/02 ; E21B49/00

Abstract:
A method for designing a core bit to control and reduce the cutting forces acting on a core of rock is disclosed. The method includes generating a model of a core bit including a plurality of cutting elements on a plurality of blades. The method may additionally include simulating a coring operation with the model of the core bit. The method may further include calculating at least one force vector generated by at least one of the plurality of cutting elements on the model of the core bit during the coring operation. The method may further include determining at least one force acting on a core in the model of the core bit based on the at least one force vector and generating a design of the core bit based on the at least one force acting on the core.
Public/Granted literature
- US20170328180A1 CORE BIT DESIGNED TO CONTROL AND REDUCE THE CUTTING FORCES ACTING ON A CORE OF ROCK Public/Granted day:2017-11-16
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