Randall N Ray

US Patent:

20060225890, Oct 12, 2006

Filed:

Apr 8, 2005

Appl. No.:

11/101824

Inventors:

Randall Ray - Spring TX, US

International Classification:

E21B 19/00

US Classification:

166382000, 166075140

Abstract:

A tubing rotator rotatably suspending a tubing string TS in a well having a wellhead W includes a tubing hanger for supporting the tubing string, and a mandrel having a bore therein and connected to the tubing string. A coupling sleeve rotatably connects the mandrel to the rotator drive shaft and transfers rotational energy from the drive shaft to the mandrel while allowing for the disengagement of the coupling sleeve from the mandrel in a direction substantially parallel to a longitudinal axis of the mandrel. The coupling sleeve has interior surfaces for mating with an exterior surfaces on the mandrel, with each surface having a substantially curvilinear configuration about its circumference defining a plurality of curved radially outward extending peaks and curved radially inward extending valleys.

US Patent:

57552843, May 26, 1998

Filed:

Mar 20, 1997

Appl. No.:

8/821716

Inventors:

Charles M. Hart - Stinnett TX
H. Milton Hoff - Tomball TX
Randall G. Ray - Spring TX
Stephen L. Witte - The Woodland TX

Assignee:

Flow Control Equipment, Inc. - Tomball TX

International Classification:

E21B 1710

US Classification:

1662414

Abstract:

A rod guide is provided for centering a sucker rod within a tubular string that powers a pump within a wellbore. The rod guide comprises a rotor secured to the sucker rod and having upper and lower stop surfaces thereon, and a sleeve formed from metal to substantially increase the life of the rod guide. The rod guide stator has an elongate slot extending along its axial length. The stop surfaces limit axial travel of the stator on the sucker rod, and the sleeve prevents the stator from engaging the sucker rod. The sleeve may be retained on the rod by a clip, and plastic end members then molded over the clip and the ends of the metal sleeve. The stop surfaces may be formed by a ring member spaced axially between the upper and lower ends of the sleeve.

US Patent:

60655372, May 23, 2000

Filed:

Feb 13, 1998

Appl. No.:

9/023595

Inventors:

Thomas E. Evans - Midland TX
H. Milton Hoff - Tomball TX
Randall Ray - Spring TX

Assignee:

Flow Control Equipment, Inc. - Tomball TX

International Classification:

E21B 1710

US Classification:

1662414

Abstract:

A rod guide fixedly molded around the shank of a sucker rod string with the rod guide including a radially inner non-erodible zone and a radially outer erodible zone. The non-erodible zone includes a radially inner substantially sleeve-shaped portion having an inner cylindrical surface for gripping engagement with the rod. A plurality of flow through channels are spaced outward of the substantially sleeve-shaped portion. Each flow through channel extends axially along the rod guide and has a maximum circumferential width greater than any gap in the radially outer surface of the erodible zone circumferentially aligned with and radially outward of the respective flow through channel. The radially outer surface of the erodible zone may have a cylindrical outer configuration, such that a radially outward substantially sleeve-shaped portion is provided for engagement with the tubing. The upper and lower surfaces of the rod guide may each be inclined such that the radially outer surface of the rod guide extends longitudinally in excess of the inner cylindrical surface of the sleeve-shaped portion and in engagement with the rod.

US Patent:

63126370, Nov 6, 2001

Filed:

Apr 11, 2000

Appl. No.:

9/547413

Inventors:

Thomas E. Evans - Midland TX
H. Milton Hoff - Tomball TX
Randall Ray - Spring TX

Assignee:

Flow Control Equipment, Inc. - Tomball TX

International Classification:

B29C 4514

US Classification:

264275

Abstract:

A rod guide fixedly molded around the shank of a sucker rod string with the rod guide including a radially inner non-erodible zone and a radially outer erodible zone. The non-erodible zone includes a radially inner substantially sleeve-shaped portion having an inner cylindrical surface for gripping engagement with the rod. A plurality of flow through channels are spaced outward of the substantially sleeve-shaped portion. Each flow through channel extends axially along the rod guide and has a maximum circumferential width greater than any gap in the radially outer surface of the erodible zone circumferentially aligned with and radially outward of the respective flow through channel. The radially outer surface of the erodible zone may have a cylindrical outer configuration, such that a radially outward substantially sleeve-shaped portion is provided for engagement with the tubing. The upper and lower surfaces of the rod guide may each be inclined such that the radially outer surface of the rod guide extends longitudinally in excess of the inner cylindrical surface of the sleeve-shaped portion and in engagement with the rod.