MARK WAYNE CRAWFORD, DC
Chiropractic at Joe Annie St, Houston, TX

6464004, Oct 15, 2002

Aug 7, 1998

09/131008

Mark S. Crawford - Houston TX 77069
Phillip S. Sizer - Dallas TX 75234
Kerry D. Jermigan - Houston TX 77099

E21B 4700

16625001, 166 66, 166 666

A well control and monitoring system which may be completely installed downhole and run into a cased well borehole or a production tubing string is disclosed. At least one mandrel having a side pocket instrument section having a downwardly facing entry and a wet connector or inductive coupler is placed in the well. A downhole digital processor and sensors are used to monitor tubing and casing fluid pressures and to control variable orifice valves or ESP pumps to control fluid flow to the production tubing from the casing/tubing annulus. The processor is progammable and reprogrammable in-situ.

6648073, Nov 18, 2003

Mar 2, 1999

09/260766

Kerry D. Jernigan - Houston TX 77099
Phillip S. Sizer - Dallas TX 75234
Mark S. Crawford - Houston TX 77069

E21B 4312

166336, 166 53, 166 666

A system for controlling fluid flow from multiple isolated producing zones in a well is provided. Components of the system are placeable in and retrievable from bottom entry side pocket mandrel sections permanently installed in a production tubing string in the well. These components include retrievable isolation valve modules. Control signals for modules are developed either downhole or at the surface and modules may be placed or retrieved through the production tubing without pulling the production tubing from the well. In high flow rate applications the sliding sleeve flow control valve of the present invention provides a variable aperture valve having a fully open cross sectional area equal to that of the production tubing, thereby achieving a minimal pressure drop across the valve.

6419022, Jul 16, 2002

Aug 26, 1998

09/141614

Kerry D. Jernigan - Houston TX 77099
Mark S. Crawford - Houston TX 77069

E21B 4312

166336, 166 53, 166 666

A system for controlling fluid flow from multiple isolated producing zones in a well is provided. Components of the system are placeable in and retrievable from bottom entry side pocket mandrel sections permanently installed in a production tubing string in the well. These components provided are sensor modules, isolation valve modules, power modules, control modules, hydraulic pump control modules and packer modules which are carried by the production tubing string. Control signals for modules are developed either downhole or at the surface and modules may be placed or retrieved through the production tubing without pulling the production tubing from the well.

2013020, Aug 8, 2013

Jul 25, 2011

13/814903

Amr Saad El-Bakry - Houston TX, US
Kelly E. Becker - Sugar Land TX, US
Mark L. Crawford - Houston TX, US
Bryce A. Holloway - Easton PA, US
Glenn O. Morrell - Houston TX, US
Pawel K. Peczak - Basking Ridge NJ, US
Limin Song - West Windsor NJ, US
Adam K. Usadi - Basking Ridge NJ, US

H04L 29/08

709202

An embodiment provides a method for managing a hydrocarbon asset. The method includes creating an interactive community of agents, wherein each agent comprises code and functional data structures configured to direct a processor to access resource on a network. At least one of the agents is configured to be a workflow agent, wherein the work-flow agent is configured to pursue a plan to accomplish a goal. The work-flow agent is provided with sensors to determine environmental conditions. The workflow agent is provided with the ability to communicate with other intelligent agents. The workflow agent is configured to select the plan based, at least in part, on information obtained from the sensors.

5740860, Apr 21, 1998

Apr 8, 1996

8/628984

William B. Crawford - Lafayette LA
Douglas W. Crawford - Cushing TX
Mark S. Crawford - Houston TX

E21B 4700

166 64

A side pocket mandrel arranged to receive a measuring instrument such as a pressure gauge in the open-bottomed side pocket thereof includes an electrical contact mounted at the top of the side pocket and connected to a cable extending upward to the surface, and an instrument lowered on a wireline kickover tool and inserted upward into the pocket and latched in place with a mating electrical connector automatically engaging the contact. Placement of the electrical contact at the top of the pocket prevents debris from settling around it and preventing reengagement after removal of the gauge for any reason.