Jeffrey Michael Habetz
Engineering at Bering Dr, Houston, TX

6412554, Jul 2, 2002

Mar 14, 2000

09/524773

John Timothy Allen - Katy TX
Steven Anthony Box - Katy TX
Bernd Pietras - Wedewark, DE
Jeffrey Michael Habetz - Houston TX

Weatherford/Lamb, Inc. - Houston TX

E21B 304

166 801, 166 851, 166379, 175195

A system for continuously circulating fluid to and through a tubular string either of coiled tubing or made up of a plurality of tubulars connected end-to-end while an upper tubular is added to or removed from a top tubular of the plurality of tubulars, all tubulars having a top-to-bottom fluid flow channel therethrough, the system having an upper chamber with a bottom opening, a top opening, and an upper sealing apparatus for sealingly encompassing a portion of the upper tubular, a lower chamber with a bottom opening, a top opening and a lower sealing apparatus for sealingly encompassing a portion of the top tubular, one of the upper chamber and the lower chamber sized for accommodating connection and disconnection therein of the upper tubular and the top tubular, and gate apparatus between and in fluid communication with the upper chamber and the lower chamber. Such a system may have apparatus for isolating a tubular therein from an axial load imposed by fluid pressure in a chamber; at least one of the lower chamber and the upper chamber with inner bushing apparatus with a portion thereof movably disposable within the chambers sealing apparatus for facilitating movement of a tubular with respect to the chambers sealing apparatus, and the system connectible to and rotatable by a rotating system for rotating the tubular string; and/or heave compensation interconnections for interconnecting the system to an offshore rigs heave compensation system. The system in certain aspects including fluid flow lines to each of the top and bottom chambers, a supply of fluid for circulating through the tubular string and through the upper and lower chambers, apparatus for continuously moving circulating fluid from the supply through the system into the tubular string.

6668684, Dec 30, 2003

Dec 7, 2001

10/011049

John Timothy Allen - Katy TX
Steven Anthony Box - Katy TX
Bernd Pietras - Wedemark, DE
Jeffrey Michael Habetz - Houston TX

Weatherford/Lamb, Inc. - Houston TX

B25B 1700

81 5715, 81 5719, 81 5721, 173216

A tong as may be used for a continuous circulation system in a wellbore. The tong has a housing with a hollow interior. A plurality of spaced apart jaw assemblies reside within the housings hollow interior for engaging a portion of a tubular to be gripped and rotated by the tong. A gear wheel is secured to the housing for rotating the housing and the jaw assemblies. The gear wheel includes a toothed outer circumference for mating with teeth of a drive shaft of a driving motor. A gear flange is movably mounted on the gear wheel such that rotation of the gear wheel does not rotate the gear flange.

7107875, Sep 19, 2006

Mar 5, 2003

10/382080

David M. Haugen - League City TX, US
Jeffrey Michael Habetz - Houston TX, US

Weatherford/Lamb, Inc. - Houston TX

B25B 17/00, E21B 3/04, E21B 19/16

81 5715, 81 5719, 81 5733

The present invention provides an apparatus that permits sections of tubulars to be connected to or disconnected from a string of pipe during a drilling operation. The apparatus further permits the sections of drill pipe to be rotated and to be axially translated during the connection or disconnection process. The apparatus further allows for the continuous circulation of fluid to and through the tubular string during the makeup or breakout process. The apparatus defines a rig assembly comprising a top drive mechanism, a rotary drive mechanism, and a fluid circulating device. Rotation and axial movement of the tubular string is alternately provided by the top drive and the rotary drive. Additionally, continuous fluid flow into the tubular string is provided through the circulation device and alternately through the tubular section once a connection is made between an upper tubular connected to the top drive mechanism and the tubular string.

7028787, Apr 18, 2006

Dec 30, 2003

10/748119

John Timothy Allen - Katy TX, US
Steven Anthony Box - Katy TX, US
Bernd Pietras - Wedemark, DE
Jeffrey Michael Habetz - Houston TX, US

Weatherford/Lamb, Inc. - Houston TX

E21B 19/22, E21B 3/06

175162, 175195, 166 771, 166 781, 464166

A tong as may be used for a continuous circulation system in a wellbore. The tong has a housing with a hollow interior. A plurality of spaced apart jaw assemblies reside within the housing's hollow interior for engaging a portion of a tubular to be gripped and rotated by the tong. A gear wheel is secured to the housing for rotating the housing and the jaw assemblies. The gear wheel includes a toothed outer circumference for mating with teeth of a drive shaft of a driving motor. A gear flange is movably mounted on the gear wheel such that rotation of the gear wheel does not rotate the gear flange.