Title: Methods and apparatus for removal and control of material in laser drilling of a borehole

Abstract

The removal of material from the path of a high power laser beam during down hole laser operations including drilling of a borehole and removal of displaced laser effected borehole material from the borehole during laser operations. In particular, paths, dynamics and parameters of fluid flows for use in conjunction with a laser bottom hole assembly.

Inventors:

Rinzler, Charles C; Zediker, Mark S; Faircloth, Brian O; Moxley, Joel F

Issue Date:

2014-01-28

Research Org.:

Foro Energy, Inc. (Littleton, CO)

Sponsoring Org.:

USDOE

OSTI Identifier:

1118258

Patent Number(s):

8636085

Application Number:

12/543,968

Assignee:

Foro Energy, Inc. (Littleton, CO)

Patent Classifications (CPCs):

E - FIXED CONSTRUCTIONS E21 - EARTH DRILLING E21B - EARTH DRILLING, e.g. DEEP DRILLING

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E - FIXED CONSTRUCTIONS E21 - EARTH DRILLING E21B - EARTH DRILLING, e.g. DEEP DRILLING

E21B7/15 - of electrically generated heat
E21B10/60 - characterised by conduits or nozzles for drilling fluids
E21B29/00 - Cutting or destroying pipes, packers, plugs, or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows
E21B7/14 - Drilling by use of heat, e.g. flame drilling {
E21B21/103 - {Down-hole by-pass valve arrangements, i.e. between the inside of the drill string and the annulus}
E21B21/00 - Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
E21B21/08 - Controlling or monitoring pressure or flow of drilling fluid, e.g. automatic filling of boreholes, automatic control of bottom pressure
E21B43/11 - Perforators

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DOE Contract Number:  

AR0000044

Resource Type:

Patent

Resource Relation:

Patent File Date: 2009 Aug 19

Country of Publication:

United States

Language:

English

Subject:

47 OTHER INSTRUMENTATION