Thomas D Macdougall, Age ~57Sugar Land, TX

Thomas Macdougall Phones & Addresses

4003 Saint Michaels Ct, Sugar Land, TX 77479 281-265-6257

85 Concord Forest, Sugar Land, TX 77478 281-321-1874

West Columbia, TX

Seabrook, TX

Social networks

Thomas D Macdougall

Linkedin

Work

Position: Medical Professional

Education

Degree: Graduate or professional degree

Mentions for Thomas D Macdougall

Resumes

Resumes

Thomas Macdougall Photo 1

Thomas Macdougall

Location:
United States

Publications

US Patents

Well-Bore Sensor Apparatus And Method

US Patent:
6766854, Jul 27, 2004
Filed:
Jun 6, 2002
Appl. No.:
10/163784
Inventors:
Reinhart Ciglenec - Katy TX
Jacques Tabanou - Houston TX
Thomas MacDougall - Sugar Land TX
Kenneth Havlinek - Houston TX
Arthur Liberman - Ridgefield CT
Ian Bryant - Newtown CT
Troy Fields - Stafford TX
Assignee:
Schlumberger Technology Corporation - Sugar Land TX
International Classification:
E21B 1700
US Classification:
16625011, 3408562, 3408563, 7315246
Abstract:
The present invention relates to a well-bore sensor apparatus and method. The apparatus includes a downhole tool carrying at least one sensor plug for deployment into the sidewall of a well-bore. The apparatus may also be used in conjunction with a surface control unit and a communication link for operatively coupling the sensor plug to the surface control unit. The sensor plug is capable of collecting well-bore data, such as pressure or temperature, and communicating the data uphole via a communication link, such as the downhole tool or an antenna. The downhole data may then be analyzed and control commands sent in response thereto. The sensor plug and/or the downhole tool may be made to respond to such control commands. In some embodiments, multiple surface control units for corresponding wells may be networked for decision making and control across multiple well-bores.

System And Method To Seal Using A Swellable Material

US Patent:
8499843, Aug 6, 2013
Filed:
Feb 22, 2010
Appl. No.:
12/710220
Inventors:
Dinesh R. Patel - Sugar Land TX,
Herve Ohmer - Houston TX,
Stephane Hiron - Houston TX,
Philippe Gambier - Houston TX,
Jonathan K. C. Whitehead - Missouri City TX,
Randolph J. Sheffield - Sugar Land TX,
Rodney J. Wetzel - Katy TX,
John R. Whitsitt - Houston TX,
Thomas D. MacDougall - Sugar Land TX,
Nitin Y. Vaidya - Sugar Land TX,
James D. Hendrickson - Sugar Land TX,
John E. Edwards - Ruwi,
Donald W. Ross - Houston TX,
Rashmi B. Bhavsar - Houston TX,
Assignee:
Schlumberger Technology Corporation - Sugar Land TX
International Classification:
E21B 33/12
US Classification:
166387
Abstract:
The invention is a sealing system, such as a packer, that is used in a wellbore to seal against an exterior surface, such as a casing or open wellbore. The sealing system includes a swellable material that swells from an unexpanded state to an expanded state thereby creating a seal when the swellable material comes into contact with a triggering fluid.

Apparatus And Method For Sampling An Earth Formation Through A Cased Borehole

US Patent:
5692565, Dec 2, 1997
Filed:
Feb 20, 1996
Appl. No.:
8/603306
Inventors:
Thomas D. MacDougall - Sugar Land TX
Andrew L. Kurkjian - Sugar Land TX
Miles Jaroska - Richmond TX
Aaron G. Flores - Sugar Land TX
Duane F. LaDue - Sugar Land TX
Assignee:
Schlumberger Technology Corporation - Houston TX
International Classification:
E21B 43112
E21B 4910
US Classification:
166264
Abstract:
An apparatus is disclosed for perforating, testing and resealing casing in an earth formation borehole. The apparatus is moveable through the casing. The apparatus can also be mounted on a wireline, on tubing or on both. A perforating device is mounted in the apparatus for producing a perforation in the casing. The perforating device contains a flexible drilling shaft that enables the drilling of perforations in the casing of lengths greater than the diameter of the borehole. The apparatus will usually contain components for hydraulic testing and sampling from the formation behind the casing. Also mounted in the apparatus is a device for plugging and resealing the perforation with a solid plug.

Method And Apparatus For Changing Bits While Drilling With A Flexible Shaft

US Patent:
5746279, May 5, 1998
Filed:
Feb 20, 1996
Appl. No.:
8/602485
Inventors:
Kenneth Havlinek - Missouri City TX
Thomas D. MacDougall - Sugar Land TX
Alan Sallwasser - Houston TX
Miles Jaroska - Richmond TX
Duane LaDue - Sugar Land TX
Wayne A. Tyler - Pearland TX
Mario Flores - Houston TX
Mark L. Hinton - Sugar Land TX
Thomas D. Svoboda - Pasadena TX
Michele Tesciuba - Houston TX
Assignee:
Gas Research Institute - Chicago IL
International Classification:
E21B 2906
E21B 43112
US Classification:
175 52
Abstract:
An apparatus and method are disclosed for the removal and replacement of the used drill bit after each perforation through casing, cement, and into rock while using a flexible drive shaft. This apparatus involves both a bayonet-style "quick connector" between the flexible shaft and the drill bit and a cartridge that holds the drill bits while they await their turn to be used. The apparatus also has a means for indexing the cartridge so that the flexible shaft can have access to each of the drill bits in the cartridge. The method disclosed involves the process of connecting the flexible shaft to the drill bit at the start of the perforating process, the disconnecting of the used bit at the end of the perforation, and the indexing of the cartridge so that the next drill bit is in line with the flexible shaft for the next perforation.

Method And Apparatus For Drilling With A Flexible Shaft While Using Hydraulic Assistance

US Patent:
5687806, Nov 18, 1997
Filed:
Feb 20, 1996
Appl. No.:
8/603307
Inventors:
Alan Sallwasser - Houston TX
Kenneth Havlinek - Missouri City TX
Thomas D. MacDougall - Sugar Land TX
Miles Jaroska - Richmond TX
Duane LaDue - Sugar Land TX
Wayne A. Tyler - Pearland TX
Mario Flores - Houston TX
Mark L. Hinton - Sugar Land TX
Thomas D. Svoboda - Pasadena TX
Michele Tesciuba - Houston TX
Assignee:
Gas Research Institute - Chicago IL
International Classification:
E21B 416
E21B 708
E21B 1720
US Classification:
175 62
Abstract:
An apparatus and method are disclosed for applying thrust (weight on bit) to a drill bit when drilling with a flexible drilling shaft while creating perforations in a cased well. The thrust is applied directly to the drill bit instead of applying it to the drill bit through the flexible drilling shaft. A support bracket is also in contact with a piston and is in slidable contact with the tool housing. A portion of the piston is positioned inside a chamber in the housing and is slidably attached to the chamber walls. As hydraulic fluid flows into the chamber opposite the piston, the piston is forced toward the drill bit. As the piston moves toward the drill bit, force is exerted on the support bracket which causes the bracket to move toward the drill bit. This force is transferred to the drill bit during the drilling process, thereby supplying the force (weight on bit) needed by the drill bit to effectively drill through a desired material.

Autonomous Untethered Well Object

US Patent:
2014007, Mar 20, 2014
Filed:
Jun 13, 2013
Appl. No.:
13/916657
Inventors:
John A. Booker - Missouri City TX,
Thomas Daniel MacDougall - Sugar Land TX,
Gary L. Rytlewski - League City TX,
International Classification:
E21B 23/00
US Classification:
1662501, 166381, 166373, 166 665
Abstract:
A technique includes deploying an untethered object though a passageway of a string in a well; and sensing a property of an environment of the string, an electromagnetic coupling or a pressure as the object is being communicated through the passageway. The technique includes selectively autonomously operating the untethered object in response to the sensing.

Harvesting Vibration For Downhole Power Generation

US Patent:
2009016, Jul 2, 2009
Filed:
Mar 9, 2009
Appl. No.:
12/400024
Inventors:
Rodney J. Wetzel - Katy TX,
Stephane Hiron - Igny,
Anthony F. Veneruso - Sugar Land TX,
Dinesh R. Patel - Sugar Land TX,
Thomas D. MacDougall - Sugar Land TX,
Joe Walter - Sugar Land TX,
Assignee:
SCHLUMBERGER TECHNOLOGY CORPORATION - Sugar Land TX
International Classification:
E21B 28/00
E21B 43/00
E21B 23/00
E21B 41/00
US Classification:
166381, 166 651, 166 664
Abstract:
A system that is usable with a subterranean well includes a winding, a member and a circuit. The winding is located downhole in the well, and the member moves relative to the winding in response to vibration occurring in the well to cause a signal to be generated on the winding. The circuit is coupled to the winding to respond to the signal to provide power to operate a component located downhole in the well.

System And Method For Long Term Power In Well Applications

US Patent:
2009003, Feb 5, 2009
Filed:
Jul 30, 2007
Appl. No.:
11/830504
Inventors:
Songming Huang - Cambridgeshire,
Thomas D. MacDougall - Sugar Land TX,
Benjamin P. Jeffryes - Cambs,
Assignee:
SCHLUMBERGER TECHNOLOGY CORPORATION - Sugar Land TX
International Classification:
E21B 28/00
H02J 15/00
H02N 2/18
E21B 41/00
H02J 11/00
US Classification:
310334, 1662441, 1661772, 166113, 322 2 R, 181141, 367137, 367191
Abstract:
A technique is provided by which energy is physically/mechanically transmitted down through a wellbore. The transmitted energy is directed downhole along a fluid channel and impinges on an energy converter positioned in the wellbore or at another subterranean location. The energy converter converts the physical energy into electrical energy that can be supplied to a downhole device.

All data offered is derived from public sources. We do not verify or evaluate each piece of data, and makes no warranties or guarantees about any of the information offered. We do not possess or have access to secure or private financial information. People Background Check is not a credit reporting agency and does not offer consumer reports. None of the information offered by People Background Check is to be considered for purposes of determining any entity or person's eligibility for credit, insurance, employment, housing, or for any other purposes covered under the FCRA.