Invention Grant
- Patent Title: Methods and apparatus for drilling wells
- Patent Title (中): 钻井的方法和装置
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Application No.: US13473838Application Date: 2012-05-17
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Publication No.: US09206646B2Publication Date: 2015-12-08
- Inventor: Tommy Johnson , Dustin O'Neal
- Applicant: Tommy Johnson , Dustin O'Neal
- Applicant Address: US TX Huffman
- Assignee: BULLDOG CHEMICALS, LLC
- Current Assignee: BULLDOG CHEMICALS, LLC
- Current Assignee Address: US TX Huffman
- Agency: Gilbreth Roebuck, PC
- Agent J. M. (Mark) Gilbreth
- Main IPC: C09K8/03
- IPC: C09K8/03 ; E21B7/04 ; E21B21/00 ; E21B31/03
Abstract:
A well fluid additive having a heavier first bead and a lighter second bead, with the first bead having a specific gravity that exceeds the specific gravity of the second bead by at least 1 percent.
Public/Granted literature
- US20130126242A1 METHODS AND APPARATUS FOR DRILLING WELLS Public/Granted day:2013-05-23
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