US1485615A - Oil-well reamer - Google Patents

Oil-well reamer Download PDF

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Publication number
US1485615A
US1485615A US429240A US42924020A US1485615A US 1485615 A US1485615 A US 1485615A US 429240 A US429240 A US 429240A US 42924020 A US42924020 A US 42924020A US 1485615 A US1485615 A US 1485615A
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Prior art keywords
rod
reamer
head
oil
shaft
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Expired - Lifetime
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US429240A
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Arthur S Jones
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Arthur S Jones
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    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/26Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/32Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools

Description

Patented Mar. 4, 1924.

UNITED STATES .ARTHUR S. LIGNES, QF INDEPENDENCE, KANSAS.

OIL-WELL BEAMER.

Application led December 8, 1929. Serial No. 429,240.

To all whom t may concern.'

Be it known that I, ARTHUR S. JONES, a citizen of the United States, residing at Independence, in the county of Montgomery and State of Kansas, have invented certain new and useful Improvements in Oil-Well Reamers; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

rIhis invention relates to an oil well reamer and one of the objects of the invention is to provide a novel means for reaming the well by rotative action of a shaft lowered longitudinally of the well.

The invention contemplates a rotative shaft on which is a head eccentrically carrying a beater or reamer which, in itself, has independent but opposed rotative movement about its own aXis, there being cutting or abrading means on the exterior of the reamer.

The novel construction of the preferred form of my device is illustrated in the accompanying drawings, in which Fig. 1 is a view partly in elevation andV partly in section of a reamer and its connection to the head.

Fig. 2 is a side elevational view of the device in use.

Fig. 3 is a detail View of the friction washer for opposing rotative action of the reamer, and

Fig. 4 is a cross sectional view on the line 4-'4 of Fig. 1, looking in the direction of the arrows.

Referring now to the drawings by numerals of reference:

1 designates a rotatable head which may be rotated by any suitable means as, for` example, by the vertical shaft 2. The head is provided with a bifurcated portion in the recess of which is eccentrically mounted shaft 3, pivoted to the head as at 4. The shaft 3 has a threaded end 5 and said shaft or rod is adapted to receive the reamer 6, which is sleeved thereupon and is provided at one end with a packing gland 7. The other end of the reamer is recessed as at 8, the recess being adapted to be closed by a plug 9..

Within the recess is a spring 10, coiled about the free end of the rod 3 and said spring bears upon a washer 11 having onpositely disposed lugs 12 and 13, which engage longitudinal grooves 14 and 15 in the recess 8. There is a similar washer 16, also having oppositely disposed lugs 17 and 18, which engage the grooves 14 and 15, and between the washers 11 and 16 is another washer 19, which has an inwardly projecting lug 20 engaging a groove or notch 21 in the shaft or rod 3.

The washers bear against the lock nut 22 which acts as a lock nut for the nut 23 on the threaded end 5 of the shaft 3 and they are held in place by the spring 10, one end of which bears against the plug 9 and the other against the washer 10.

The washers and spring constitute friction means for opposing rotative movement of the member 6 although the member 6 may rotate slowly about the shaft when the device is in motion.

There are cutting lugs or teeth 24 arranged about the outer surface of the reamer 6, which do the actual cutting` when the device is in operation as shown in Fig. 2, the lugs or teeth 24 will tear away the earth as indicated, the contact with the earth being sufficient to cause a retarded rotative axial movement of the member 6 which will result in the continuous presentation of new cutting devices, as will be clearly apparent.

What I claim and desire to secure by Iletters Patent is:

1. An oil well reamer comprising a rotatable head, a rod eccentrically carried by the head, a cutter mounted on the rod,

Aand a friction means on the rod to oppose rotation of the cutter.

2. An oil well reamer comprising a rotatable head, a rod eccentrically mounted upon the head, a cutting weight having a rod-receiving opening therethrough, a recess at one end of the cutting weight communieating with the opening, and friction means carried by the rod within the recess and engaging the cutting weight.

3. An oil well reamer comprising a rotatable head, a rod eccentrically mounted upon the head and having swinging movement about the axis of the head, a weight rotatably carried by the rod, and a friction device between the head and the rod.

4. An oil well reamer comprising a rotatable head having a transverse slot in at its lower end, a nut on said rod Within the recess, Washers on the rod and secured to the reanier, a Washer on the rod Secured thereto and interposed between the first 15 named Washers, and a spring surrounding the rod and engaging the rearner and the outer one of said first named Washers for the purpose set forth.

ln testimony whereof I affix my signa- 20 ture.

ARTHUR S. JONES.

US429240A 1920-12-08 1920-12-08 Oil-well reamer Expired - Lifetime US1485615A (en)

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Cited By (64)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2548724A (en) * 1947-09-05 1951-04-10 L Ray Samer Oil well reamer
US3299970A (en) * 1963-07-10 1967-01-24 Marvin M Anderson Ice hole reamer and lifter
EP0298537A2 (en) * 1987-06-25 1989-01-11 Shell Internationale Research Maatschappij B.V. Device and method for underreaming a borehole
US5413184A (en) * 1993-10-01 1995-05-09 Landers; Carl Method of and apparatus for horizontal well drilling
US5494121A (en) * 1994-04-28 1996-02-27 Nackerud; Alan L. Cavern well completion method and apparatus
US5853056A (en) * 1993-10-01 1998-12-29 Landers; Carl W. Method of and apparatus for horizontal well drilling
US6189629B1 (en) 1998-08-28 2001-02-20 Mcleod Roderick D. Lateral jet drilling system
US6257353B1 (en) 1999-02-23 2001-07-10 Lti Joint Venture Horizontal drilling method and apparatus
US6280000B1 (en) 1998-11-20 2001-08-28 Joseph A. Zupanick Method for production of gas from a coal seam using intersecting well bores
US6283230B1 (en) 1999-03-01 2001-09-04 Jasper N. Peters Method and apparatus for lateral well drilling utilizing a rotating nozzle
US6378629B1 (en) 2000-08-21 2002-04-30 Saturn Machine & Welding Co., Inc. Boring apparatus
US6412578B1 (en) 2000-08-21 2002-07-02 Dhdt, Inc. Boring apparatus
US6412556B1 (en) 2000-08-03 2002-07-02 Cdx Gas, Inc. Cavity positioning tool and method
US6425448B1 (en) 2001-01-30 2002-07-30 Cdx Gas, L.L.P. Method and system for accessing subterranean zones from a limited surface area
US6454000B1 (en) 1999-11-19 2002-09-24 Cdx Gas, Llc Cavity well positioning system and method
US6575255B1 (en) 2001-08-13 2003-06-10 Cdx Gas, Llc Pantograph underreamer
US6578636B2 (en) 2000-02-16 2003-06-17 Performance Research & Drilling, Llc Horizontal directional drilling in wells
US6591922B1 (en) 2001-08-13 2003-07-15 Cdx Gas, Llc Pantograph underreamer and method for forming a well bore cavity
US6595301B1 (en) 2001-08-17 2003-07-22 Cdx Gas, Llc Single-blade underreamer
US6595302B1 (en) 2001-08-17 2003-07-22 Cdx Gas, Llc Multi-blade underreamer
US6598686B1 (en) 1998-11-20 2003-07-29 Cdx Gas, Llc Method and system for enhanced access to a subterranean zone
US6644422B1 (en) 2001-08-13 2003-11-11 Cdx Gas, L.L.C. Pantograph underreamer
US20030212402A1 (en) * 2002-05-10 2003-11-13 Precimed S.A., Orvin, Switzerland Pivoting bone reamer for minimally invasive joint surgery
US20030217842A1 (en) * 2001-01-30 2003-11-27 Cdx Gas, L.L.C., A Texas Limited Liability Company Method and system for accessing a subterranean zone from a limited surface area
US6679322B1 (en) 1998-11-20 2004-01-20 Cdx Gas, Llc Method and system for accessing subterranean deposits from the surface
US6681855B2 (en) 2001-10-19 2004-01-27 Cdx Gas, L.L.C. Method and system for management of by-products from subterranean zones
US20040035582A1 (en) * 2002-08-22 2004-02-26 Zupanick Joseph A. System and method for subterranean access
US20040050552A1 (en) * 2002-09-12 2004-03-18 Zupanick Joseph A. Three-dimensional well system for accessing subterranean zones
US20040050554A1 (en) * 2002-09-17 2004-03-18 Zupanick Joseph A. Accelerated production of gas from a subterranean zone
US6708764B2 (en) 2002-07-12 2004-03-23 Cdx Gas, L.L.C. Undulating well bore
US20040055787A1 (en) * 1998-11-20 2004-03-25 Zupanick Joseph A. Method and system for circulating fluid in a well system
US6722452B1 (en) 2002-02-19 2004-04-20 Cdx Gas, Llc Pantograph underreamer
US6725922B2 (en) 2002-07-12 2004-04-27 Cdx Gas, Llc Ramping well bores
US20040108110A1 (en) * 1998-11-20 2004-06-10 Zupanick Joseph A. Method and system for accessing subterranean deposits from the surface and tools therefor
US20040154802A1 (en) * 2001-10-30 2004-08-12 Cdx Gas. Llc, A Texas Limited Liability Company Slant entry well system and method
US20040206493A1 (en) * 2003-04-21 2004-10-21 Cdx Gas, Llc Slot cavity
US20040244974A1 (en) * 2003-06-05 2004-12-09 Cdx Gas, Llc Method and system for recirculating fluid in a well system
US6851479B1 (en) 2002-07-17 2005-02-08 Cdx Gas, Llc Cavity positioning tool and method
US20050087340A1 (en) * 2002-05-08 2005-04-28 Cdx Gas, Llc Method and system for underground treatment of materials
US20050103490A1 (en) * 2003-11-17 2005-05-19 Pauley Steven R. Multi-purpose well bores and method for accessing a subterranean zone from the surface
US20050109505A1 (en) * 2003-11-26 2005-05-26 Cdx Gas, Llc Method and system for extraction of resources from a subterranean well bore
US20050139358A1 (en) * 2002-07-17 2005-06-30 Zupanick Joseph A. Cavity positioning tool and method
US20050167156A1 (en) * 2004-01-30 2005-08-04 Cdx Gas, Llc Method and system for testing a partially formed hydrocarbon well for evaluation and well planning refinement
US20050183859A1 (en) * 2003-11-26 2005-08-25 Seams Douglas P. System and method for enhancing permeability of a subterranean zone at a horizontal well bore
US20050189114A1 (en) * 2004-02-27 2005-09-01 Zupanick Joseph A. System and method for multiple wells from a common surface location
US20050216020A1 (en) * 2002-05-07 2005-09-29 Marcus Orton Assembly for use in orthopaedic surgery
US6962216B2 (en) 2002-05-31 2005-11-08 Cdx Gas, Llc Wedge activated underreamer
US6964308B1 (en) 2002-10-08 2005-11-15 Cdx Gas, Llc Method of drilling lateral wellbores from a slant well without utilizing a whipstock
US6976547B2 (en) 2002-07-16 2005-12-20 Cdx Gas, Llc Actuator underreamer
US6988548B2 (en) 2002-10-03 2006-01-24 Cdx Gas, Llc Method and system for removing fluid from a subterranean zone using an enlarged cavity
US6991047B2 (en) 2002-07-12 2006-01-31 Cdx Gas, Llc Wellbore sealing system and method
US6991048B2 (en) 2002-07-12 2006-01-31 Cdx Gas, Llc Wellbore plug system and method
US20060131024A1 (en) * 2004-12-21 2006-06-22 Zupanick Joseph A Accessing subterranean resources by formation collapse
US20060131076A1 (en) * 2004-12-21 2006-06-22 Zupanick Joseph A Enlarging well bores having tubing therein
US20060131026A1 (en) * 2004-12-22 2006-06-22 Pratt Christopher A Adjustable window liner
US7073595B2 (en) 2002-09-12 2006-07-11 Cdx Gas, Llc Method and system for controlling pressure in a dual well system
US20060189994A1 (en) * 2002-09-13 2006-08-24 Symmetry Medical, Inc. Orthopaedic reamer driver for minimally invasive surgery
US20060201714A1 (en) * 2003-11-26 2006-09-14 Seams Douglas P Well bore cleaning
US20060201715A1 (en) * 2003-11-26 2006-09-14 Seams Douglas P Drilling normally to sub-normally pressured formations
US20060266521A1 (en) * 2005-05-31 2006-11-30 Pratt Christopher A Cavity well system
US7207390B1 (en) 2004-02-05 2007-04-24 Cdx Gas, Llc Method and system for lining multilateral wells
US7373984B2 (en) 2004-12-22 2008-05-20 Cdx Gas, Llc Lining well bore junctions
US8376052B2 (en) 1998-11-20 2013-02-19 Vitruvian Exploration, Llc Method and system for surface production of gas from a subterranean zone
US20130149058A1 (en) * 2010-05-07 2013-06-13 Pat Kelly Undercutting Tool

Cited By (137)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2548724A (en) * 1947-09-05 1951-04-10 L Ray Samer Oil well reamer
US3299970A (en) * 1963-07-10 1967-01-24 Marvin M Anderson Ice hole reamer and lifter
EP0298537A2 (en) * 1987-06-25 1989-01-11 Shell Internationale Research Maatschappij B.V. Device and method for underreaming a borehole
EP0298537B1 (en) * 1987-06-25 1992-12-02 Shell Internationale Research Maatschappij B.V. Device and method for underreaming a borehole
US5413184A (en) * 1993-10-01 1995-05-09 Landers; Carl Method of and apparatus for horizontal well drilling
US5853056A (en) * 1993-10-01 1998-12-29 Landers; Carl W. Method of and apparatus for horizontal well drilling
US5494121A (en) * 1994-04-28 1996-02-27 Nackerud; Alan L. Cavern well completion method and apparatus
US6189629B1 (en) 1998-08-28 2001-02-20 Mcleod Roderick D. Lateral jet drilling system
US6439320B2 (en) 1998-11-20 2002-08-27 Cdx Gas, Llc Wellbore pattern for uniform access to subterranean deposits
US6280000B1 (en) 1998-11-20 2001-08-28 Joseph A. Zupanick Method for production of gas from a coal seam using intersecting well bores
US8376052B2 (en) 1998-11-20 2013-02-19 Vitruvian Exploration, Llc Method and system for surface production of gas from a subterranean zone
US6357523B1 (en) 1998-11-20 2002-03-19 Cdx Gas, Llc Drainage pattern with intersecting wells drilled from surface
US8434568B2 (en) 1998-11-20 2013-05-07 Vitruvian Exploration, Llc Method and system for circulating fluid in a well system
US20080060807A1 (en) * 1998-11-20 2008-03-13 Cdx Gas, Llc Method and system for accessing subterranean deposits from the surface and tools therefor
US8464784B2 (en) 1998-11-20 2013-06-18 Vitruvian Exploration, Llc Method and system for accessing subterranean deposits from the surface and tools therefor
US20080060806A1 (en) * 1998-11-20 2008-03-13 Cdx Gas, Llc, A Texas Limited Liability Company Method and system for accessing subterranean deposits from the surface and tools therefor
US6964298B2 (en) 1998-11-20 2005-11-15 Cdx Gas, Llc Method and system for accessing subterranean deposits from the surface
US6668918B2 (en) 1998-11-20 2003-12-30 Cdx Gas, L.L.C. Method and system for accessing subterranean deposit from the surface
US6478085B2 (en) 1998-11-20 2002-11-12 Cdx Gas, Llp System for accessing subterranean deposits from the surface
US20050257962A1 (en) * 1998-11-20 2005-11-24 Cdx Gas, Llc, A Texas Limited Liability Company Method and system for circulating fluid in a well system
US6561288B2 (en) 1998-11-20 2003-05-13 Cdx Gas, Llc Method and system for accessing subterranean deposits from the surface
US6575235B2 (en) 1998-11-20 2003-06-10 Cdx Gas, Llc Subterranean drainage pattern
US20080060804A1 (en) * 1998-11-20 2008-03-13 Cdx Gas, Llc, A Texas Limited Liability Company, Corporation Method and system for accessing subterranean deposits from the surface and tools therefor
US8469119B2 (en) 1998-11-20 2013-06-25 Vitruvian Exploration, Llc Method and system for accessing subterranean deposits from the surface and tools therefor
US8479812B2 (en) 1998-11-20 2013-07-09 Vitruvian Exploration, Llc Method and system for accessing subterranean deposits from the surface and tools therefor
US20080060805A1 (en) * 1998-11-20 2008-03-13 Cdx Gas, Llc Method and system for accessing subterranean deposits from the surface and tools therefor
US20060096755A1 (en) * 1998-11-20 2006-05-11 Cdx Gas, Llc, A Limited Liability Company Method and system for accessing subterranean deposits from the surface
US20080066903A1 (en) * 1998-11-20 2008-03-20 Cdx Gas, Llc, A Texas Limited Liability Company Method and system for accessing subterranean deposits from the surface and tools therefor
US6598686B1 (en) 1998-11-20 2003-07-29 Cdx Gas, Llc Method and system for enhanced access to a subterranean zone
US6604580B2 (en) 1998-11-20 2003-08-12 Cdx Gas, Llc Method and system for accessing subterranean zones from a limited surface area
US20080121399A1 (en) * 1998-11-20 2008-05-29 Zupanick Joseph A Method and system for accessing subterranean deposits from the surface
US6976533B2 (en) 1998-11-20 2005-12-20 Cdx Gas, Llc Method and system for accessing subterranean deposits from the surface
US20090084534A1 (en) * 1998-11-20 2009-04-02 Cdx Gas, Llc, A Texas Limited Liability Company, Corporation Method and system for accessing subterranean deposits from the surface and tools therefor
US7025154B2 (en) 1998-11-20 2006-04-11 Cdx Gas, Llc Method and system for circulating fluid in a well system
US8376039B2 (en) 1998-11-20 2013-02-19 Vitruvian Exploration, Llc Method and system for accessing subterranean deposits from the surface and tools therefor
US6679322B1 (en) 1998-11-20 2004-01-20 Cdx Gas, Llc Method and system for accessing subterranean deposits from the surface
US8291974B2 (en) 1998-11-20 2012-10-23 Vitruvian Exploration, Llc Method and system for accessing subterranean deposits from the surface and tools therefor
US6688388B2 (en) 1998-11-20 2004-02-10 Cdx Gas, Llc Method for accessing subterranean deposits from the surface
US20040031609A1 (en) * 1998-11-20 2004-02-19 Cdx Gas, Llc, A Texas Corporation Method and system for accessing subterranean deposits from the surface
US8505620B2 (en) 1998-11-20 2013-08-13 Vitruvian Exploration, Llc Method and system for accessing subterranean deposits from the surface and tools therefor
US8297377B2 (en) 1998-11-20 2012-10-30 Vitruvian Exploration, Llc Method and system for accessing subterranean deposits from the surface and tools therefor
US8813840B2 (en) 1998-11-20 2014-08-26 Efective Exploration, LLC Method and system for accessing subterranean deposits from the surface and tools therefor
US8297350B2 (en) 1998-11-20 2012-10-30 Vitruvian Exploration, Llc Method and system for accessing subterranean deposits from the surface
US20040055787A1 (en) * 1998-11-20 2004-03-25 Zupanick Joseph A. Method and system for circulating fluid in a well system
US8316966B2 (en) 1998-11-20 2012-11-27 Vitruvian Exploration, Llc Method and system for accessing subterranean deposits from the surface and tools therefor
US8371399B2 (en) 1998-11-20 2013-02-12 Vitruvian Exploration, Llc Method and system for accessing subterranean deposits from the surface and tools therefor
US6732792B2 (en) 1998-11-20 2004-05-11 Cdx Gas, Llc Multi-well structure for accessing subterranean deposits
US20040108110A1 (en) * 1998-11-20 2004-06-10 Zupanick Joseph A. Method and system for accessing subterranean deposits from the surface and tools therefor
US20040149432A1 (en) * 1998-11-20 2004-08-05 Cdx Gas, L.L.C., A Texas Corporation Method and system for accessing subterranean deposits from the surface
US20080060571A1 (en) * 1998-11-20 2008-03-13 Cdx Gas, Llc. Method and system for accessing subterranean deposits from the surface and tools therefor
US9551209B2 (en) 1998-11-20 2017-01-24 Effective Exploration, LLC System and method for accessing subterranean deposits
US8511372B2 (en) 1998-11-20 2013-08-20 Vitruvian Exploration, Llc Method and system for accessing subterranean deposits from the surface
US6257353B1 (en) 1999-02-23 2001-07-10 Lti Joint Venture Horizontal drilling method and apparatus
US6283230B1 (en) 1999-03-01 2001-09-04 Jasper N. Peters Method and apparatus for lateral well drilling utilizing a rotating nozzle
US6454000B1 (en) 1999-11-19 2002-09-24 Cdx Gas, Llc Cavity well positioning system and method
US6578636B2 (en) 2000-02-16 2003-06-17 Performance Research & Drilling, Llc Horizontal directional drilling in wells
US6889781B2 (en) 2000-02-16 2005-05-10 Performance Research & Drilling, Llc Horizontal directional drilling in wells
US6964303B2 (en) 2000-02-16 2005-11-15 Performance Research & Drilling, Llc Horizontal directional drilling in wells
US20050103528A1 (en) * 2000-02-16 2005-05-19 Mazorow Henry B. Horizontal directional drilling in wells
US7434620B1 (en) 2000-08-03 2008-10-14 Cdx Gas, Llc Cavity positioning tool and method
US6412556B1 (en) 2000-08-03 2002-07-02 Cdx Gas, Inc. Cavity positioning tool and method
US7213644B1 (en) 2000-08-03 2007-05-08 Cdx Gas, Llc Cavity positioning tool and method
US6550553B2 (en) 2000-08-21 2003-04-22 Dhdt, Inc. Boring apparatus
US6971457B2 (en) 2000-08-21 2005-12-06 Batesville Services, Inc. Moldable fabric
US6378629B1 (en) 2000-08-21 2002-04-30 Saturn Machine & Welding Co., Inc. Boring apparatus
US6588517B2 (en) 2000-08-21 2003-07-08 Dhdt, Inc. Boring apparatus
US6412578B1 (en) 2000-08-21 2002-07-02 Dhdt, Inc. Boring apparatus
US20030217842A1 (en) * 2001-01-30 2003-11-27 Cdx Gas, L.L.C., A Texas Limited Liability Company Method and system for accessing a subterranean zone from a limited surface area
US6662870B1 (en) 2001-01-30 2003-12-16 Cdx Gas, L.L.C. Method and system for accessing subterranean deposits from a limited surface area
US6425448B1 (en) 2001-01-30 2002-07-30 Cdx Gas, L.L.P. Method and system for accessing subterranean zones from a limited surface area
US6986388B2 (en) 2001-01-30 2006-01-17 Cdx Gas, Llc Method and system for accessing a subterranean zone from a limited surface area
US7036584B2 (en) 2001-01-30 2006-05-02 Cdx Gas, L.L.C. Method and system for accessing a subterranean zone from a limited surface area
US6644422B1 (en) 2001-08-13 2003-11-11 Cdx Gas, L.L.C. Pantograph underreamer
US6591922B1 (en) 2001-08-13 2003-07-15 Cdx Gas, Llc Pantograph underreamer and method for forming a well bore cavity
US6575255B1 (en) 2001-08-13 2003-06-10 Cdx Gas, Llc Pantograph underreamer
US6595301B1 (en) 2001-08-17 2003-07-22 Cdx Gas, Llc Single-blade underreamer
US6595302B1 (en) 2001-08-17 2003-07-22 Cdx Gas, Llc Multi-blade underreamer
US6681855B2 (en) 2001-10-19 2004-01-27 Cdx Gas, L.L.C. Method and system for management of by-products from subterranean zones
US6848508B2 (en) 2001-10-30 2005-02-01 Cdx Gas, Llc Slant entry well system and method
US7048049B2 (en) 2001-10-30 2006-05-23 Cdx Gas, Llc Slant entry well system and method
US20040154802A1 (en) * 2001-10-30 2004-08-12 Cdx Gas. Llc, A Texas Limited Liability Company Slant entry well system and method
US6722452B1 (en) 2002-02-19 2004-04-20 Cdx Gas, Llc Pantograph underreamer
US20050216020A1 (en) * 2002-05-07 2005-09-29 Marcus Orton Assembly for use in orthopaedic surgery
US20050087340A1 (en) * 2002-05-08 2005-04-28 Cdx Gas, Llc Method and system for underground treatment of materials
US7360595B2 (en) 2002-05-08 2008-04-22 Cdx Gas, Llc Method and system for underground treatment of materials
US7473254B2 (en) * 2002-05-10 2009-01-06 Precimed S.A. Pivoting bone reamer for minimally invasive joint surgery
US20030212402A1 (en) * 2002-05-10 2003-11-13 Precimed S.A., Orvin, Switzerland Pivoting bone reamer for minimally invasive joint surgery
US6962216B2 (en) 2002-05-31 2005-11-08 Cdx Gas, Llc Wedge activated underreamer
US6991047B2 (en) 2002-07-12 2006-01-31 Cdx Gas, Llc Wellbore sealing system and method
US6991048B2 (en) 2002-07-12 2006-01-31 Cdx Gas, Llc Wellbore plug system and method
US6708764B2 (en) 2002-07-12 2004-03-23 Cdx Gas, L.L.C. Undulating well bore
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