Christopher Loftin

US Patent:

20130284444, Oct 31, 2013

Filed:

Apr 26, 2012

Appl. No.:

13/457099

Inventors:

Sibu Varghese - Houston TX, US
Christopher Loftin - Houston TX, US
Edward Rositas - Houston TX, US
Arjin Nolan - Tomball TX, US
Jesus Aldeguer - Houston TX, US

Assignee:

VETCO GRAY INC. - Houston TX

International Classification:

E21B 41/04

US Classification:

166341

Abstract:

Systems, devices, and methods for providing proper spacing and alignment of multi-well modular drilling templates and associated wells are provided. An example embodiment of a system includes a primary well upon which a multi-well modular drilling template is landed, and a second well upon which a specially configured spacer device is landed. The spacer device includes an alignment frame which engages guide arms of the template to force the spacer device into proper axial alignment. The spacer device includes an elongated arm and a guide funnel which provide the proper spacing and proper location for inserting a third well. The third well can be used as the central well for a second multi-well modular drilling template.

US Patent:

20130264117, Oct 10, 2013

Filed:

Apr 10, 2012

Appl. No.:

13/443530

Inventors:

Sibu Varghese - Houston TX, US
Clint Trimble - Houston TX, US
Christopher Loftin - Houston TX, US
Jeffrey Allen Raynal - Houston TX, US

Assignee:

Vetco Gray Inc - Houston TX

International Classification:

E21B 7/124

US Classification:

175 10

Abstract:

A template for use in positioning subsea wellbores that has a drop away funnel that extends laterally from the template. The drop away funnel is used to locate a piling adjacent the wellbores and is selectively detached from the template after installing the piling. A tang and clevis type assembly mounts the drop away funnel to the template, where the tang and clevis are coupled together with a main stud. The main stud is oriented substantially parallel with an axis of the drop away funnel; so that when the stud is removed, the drop away funnel can decouple from the template and slide axially downward along the piling.

US Patent:

20140167408, Jun 19, 2014

Filed:

Dec 13, 2012

Appl. No.:

13/713790

Inventors:

- Houston TX, US
Daniel C. Benson - Houston TX, US
David L. Ford - Houston TX, US
Christopher Loftin - Houston TX, US

Assignee:

Vetco Gray Inc. - Houston TX

International Classification:

F16L 25/10

US Classification:

285330

Abstract:

A pipe connection includes a pin having external threads and a box having internal threads. A circumferentially extending row of pin teeth are located on an exterior portion of the pin. A slot extends through a side wall of the box. A key is carried in the slot, the key having a row of key teeth that mate with the box teeth. The key is mounted to the box such that a movable portion of the key is radially movable relative to the box between radially outward and radially inward positions. The key is biased toward the inward position, so that the key teeth ratchet on the pin teeth during make-up of pin and the box. The teeth have a saw-tooth configuration to resist unscrewing rotation of pin and the box. The key may be an integral part of the side wall of the box or a separate component.