Harold H Harvey

Author:

Harold H. Harvey

ISBN #:

0660008785

US Patent:

50388592, Aug 13, 1991

Filed:

Dec 27, 1988

Appl. No.:

7/290575

Inventors:

Gerald D. Lynde - Bossier City LA
Harold H. Harvey - Bossier City LA

Assignee:

Tri-State Oil Tools, Inc.

International Classification:

E21B 2900

US Classification:

166 556

Abstract:

A cutting tool (10) for removing metal tubular members held in stationary position downhole from a well bore and adapted to be inserted within a well. The cutting tool (10) includes a plurality of elongate blades (32,34) on the cylindrical body (22) of the cutting tool (10) which extend below the bottom of the tool body (22). Cutting elements (42) of a predetermined size and shape are arranged in a symmetrical predetermined pattern on the lower portion of each blade (32,34) in a plurality of predetermined transversely extending rows below the tool body (22). The cutting elements (42) in adjacent transverse rows for each blade (32) are staggered horizontally and have different concentric cutting paths. Preferably, the cutting elements (42) in corresponding transverse rows on adjacent blades (32,34) are staggered and have different concentric cutting paths. Each cutting element (42) has a groove (42F) for receiving and directing forwardly the extending end of a metal shaving (S) to facilitate breaking thereof from the upper end of the tubular member (14) being cut away.

US Patent:

50586661, Oct 22, 1991

Filed:

Dec 3, 1990

Appl. No.:

7/621063

Inventors:

Gerald D. Lynde - Bossier City LA
Harold H. Harvey - Bossier City LA

Assignee:

Tri-State Oil Tools, Inc. - Bossier City LA

International Classification:

E21B 1026

US Classification:

166 556

Abstract:

A cutting tool (10) for removing members downhole from a well bore and adapted to be inserted within a well from the upper end (12) of the casing (14). The cutting tool (10) includes a plurality of elongate blades (32) on the cylindrical body (18) of the cutting tool (10). Cutting elements (42) of a predetermined size and shape are arranged in a symmetrical predetermined pattern on each blade (32) in side-by-side relation in a plurality of predetermined transversely extending rows and a plurality of predetermined generally vertically extending columns. The cutting elements (42) in adjacent transverse rows for each blade (32) are staggered and have different concentric cutting paths. The cutting elements (42E) in corresponding transverse rows on adjacent blades (32A, 32B) are staggered and have different concentric cutting paths. The blades (32A, 32B) of the embodiment of FIGS.

US Patent:

47967099, Jan 10, 1989

Filed:

Jan 6, 1986

Appl. No.:

6/816287

Inventors:

Gerald D. Lynde - Bossier City LA
Kenneth W. Winterrowd - Shreveport LA
Harold H. Harvey - Bossier City LA

Assignee:

Tri-State Oil Tool Industries, Inc. - Bossier City LA

International Classification:

E21B 2900

US Classification:

166 556

Abstract:

A milling tool (10) for processively cutting away a section of casing (14) installed within a well from the upper annular end (12) of the casing (14). The milling tool (10) includes a plurality of elongate blades (32) equally spaced from each other at intervals between one and three inches about the periphery of the cylindrical body (18) of the milling tool (10). The blades (32) are inclined with respect to the axis of rotation and hard carbide cutting discs (34) arranged in horizontal rows on the blades (32) form the inclined leading planar face of the blades (32), and the lowermost row of discs (34) forms a cutting edge with a negative rake engaging the upper end (12) of the casing (14) in a cutting operation.

US Patent:

58100792, Sep 22, 1998

Filed:

Oct 10, 1995

Appl. No.:

8/541551

Inventors:

Gerald D. Lynde - Houston TX
Harold H. Harvey - Bossier City LA

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

E21B 1026

US Classification:

166 556

Abstract:

A tool for cutting or milling casing in a well is disclosed. It includes a plurality of blades extending outwardly to a substantially radial position for cutting the walls of casing strings and removing a predetermined length of the casing strings in a cutting action. The blades have cutting elements positioned on leading faces of the blades to engage the casing strings in a cutting action without tripping or removal from the bore hole. The cutting elements can be arranged in rows and columns. The cutting elements can be shaped to continually present a sharp cutting edge to the object being milled. The cutting elements can be inclined at a negative axial rake angle to cause the metal chips cut from the object being milled to break off at short lengths. The cutting element can also have surface irregularities to cause the metal chips cut from the casings to break off at short lengths. The cutting element can also have stress relieving grooves to prevent the propagation of a crack across the face of the element.

US Patent:

58992685, May 4, 1999

Filed:

Oct 28, 1997

Appl. No.:

8/958829

Inventors:

Gerald D. Lynde - Houston TX
Harold H. Harvey - Bossier City LA

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

E21B 1026

US Classification:

166 556

Abstract:

A tool for cutting or milling casing in a well is disclosed. It includes a plurality of blades extending outwardly to a substantially radial position for cutting the walls of casing strings and removing a predetermined length of the casing strings in a cutting action. The blades have cutting elements positioned on leading faces of the blades to engage the casing strings in a cutting action without tripping or removal from the bore hole. The cutting elements can be arranged in rows and columns. The cutting elements can be shaped to continually present a sharp cutting edge to the object being milled. The cutting elements can be inclined at a negative axial rake angle to cause the metal chips cut from the object being milled to break off at short lengths. The cutting element can also have surface irregularities to cause the metal chips cut from the casings to break off at short lengths. The cutting element can also have stress relieving grooves to prevent the propagation of a crack across the face of the element.

US Patent:

53739000, Dec 20, 1994

Filed:

Jul 22, 1993

Appl. No.:

8/096010

Inventors:

Gerald D. Lynde - Houston TX
Harold H. Harvey - Bossier City LA

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

E21B 1026

US Classification:

166297

Abstract:

A tool for cutting or milling casing in a well is disclosed. It includes a plurality of blades extending outwardly to a substantially radial position for cutting the walls of casing strings and removing a predetermined length of the casing strings in a cutting action. The blades have cutting elements positioned on leading faces of the blades to engage the casing strings in a cutting action without tripping or removal from the bore hole. The cutting element has surface irregularities to cause the metal chips cut from the casings to break off at short lengths. The cutting element can also have stress relieving grooves to prevent the propagation of a crack across the face of the element.

US Patent:

50147781, May 14, 1991

Filed:

Mar 18, 1988

Appl. No.:

7/169836

Inventors:

Gerald D. Lynde - Bossier City LA
Kenneth W. Winterrowd - Shreveport LA
Harold H. Harvey - Bossier City LA

Assignee:

Tri-State Oil TOols, Inc. - Bossier City LA

International Classification:

E21B 2900

US Classification:

166 556

Abstract:

An oil field cutting tool (10) for progressively cutting away a tubular member (14) installed within a well from the upper annular end (12) of the tubular member (14). The cutting tool (10) includes a plurality of elongate blades (32) spaced about the periphery of the cylindrical body (18) of the cutting tool (10). A plurality of cutting elements (42) of a predetermined size and shape are secured in a predetermined pattern on the leading surface of the blades (32) in a plurality of closely spaced parallel rows extending transversely between the sides of the blades (32) and in a plurality of closely spaced parallel columns extending generally longitudinally between the ends of the blades (32).

US Patent:

54563127, Oct 10, 1995

Filed:

Oct 17, 1994

Appl. No.:

8/323815

Inventors:

Gerald D. Lynde - Houston TX
Harold H. Harvey - Bossier City LA

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

E21B 1026

US Classification:

166 556

Abstract:

A tool for cutting or milling casing in a well is disclosed. It includes a plurality of blades extending outwardly to a substantially radial position for cutting the walls of casing strings and removing a predetermined length of the casing strings in a cutting action. The blades have cutting elements positioned on leading faces of the blades to engage the casing strings in a cutting action without tripping or removal from the bore hole. The cutting element has surface irregularities to cause the metal chips cut from the casings to break off at short lengths. The cutting element can also have stress relieving grooves to prevent the propagation of a crack across the face of the element.