Anthony P Collins

US Patent:

6912465, Jun 28, 2005

Filed:

Dec 12, 2002

Appl. No.:

10/248034

Inventors:

Anthony L. Collins - Houston TX, US
Andrew Hawthorn - Stafford TX, US
Cengiz Esmersoy - Sugar Land TX, US

Assignee:

Schlumberger Technology Corporation - Sugar Land TX

International Classification:

G01V001/40

US Classification:

702 6, 702 11, 702 18

Abstract:

Techniques are presented for determining the drift of a clock adapted for subsurface disposal. Seismic signals are transmitted through the subsurface medium from an uphole location at selected times, acoustic signals associated with the transmitted seismic signals are received with acoustic sensors at identified downhole locations. First and second transit times for acoustic signals received at an identified downhole reference location are determined using the clock. A time difference between the first and second signal transit times at the reference point is calculated to determine the clock drift.

US Patent:

7301345, Nov 27, 2007

Filed:

Sep 9, 2005

Appl. No.:

11/223883

Inventors:

Min-Yi Chen - Pearland TX, US
Brian Clark - Sugar Land TX, US
Anthony Collins - Houston TX, US
Jeffrey Tarvin - Brookfield CT, US

Assignee:

Schlumberger Technology Corporation - Ridgefield CT

International Classification:

G01V 3/18
G01V 1/40

US Classification:

324347, 324351, 702 11

Abstract:

Logging-while-drilling apparatus and methodologies for measuring streaming potential in an earth formation are provided. The apparatus and methodologies can be utilized to find information relevant to the drilling operations. In particular, since the streaming potential measurement relates directly to fluid flow, the streaming potential measurements can be used to track flow of fluids in the formation. In turn, this information may be used to find information relevant to the drilling operations, such as under-balanced drilling conditions, abnormal formation pressures, open fractures, the permeability of the formation, and formation pressure.

US Patent:

7388380, Jun 17, 2008

Filed:

Sep 9, 2005

Appl. No.:

11/223644

Inventors:

Min-Yi Chen - Pearland TX, US
Brian Clark - Sugar Land TX, US
Anthony Collins - Houston TX, US
Jeffrey Tarvin - Brookfield CT, US

Assignee:

Schlumberger Technology - Ridgefield CT

International Classification:

G01V 3/22
G01V 3/24
G01V 3/40
E21B 47/00

US Classification:

324347, 324366, 175 50

Abstract:

Logging-while-drilling apparatus and methodologies for measuring streaming potential in an earth formation are provided. The apparatus and methodologies can be utilized to find information relevant to the drilling operations. In particular, since the streaming potential measurement relates directly to fluid flow, the streaming potential measurements can be used to track flow of fluids in the formation. In turn, this information may be used to find information relevant to the drilling operations, such as under-balanced drilling conditions, abnormal formation pressures, open fractures, the permeability of the formation, and formation pressure.

US Patent:

7466136, Dec 16, 2008

Filed:

Sep 9, 2005

Appl. No.:

11/222689

Inventors:

Min-Yi Chen - Pearland TX, US
Brian Clark - Sugar Land TX, US
Anthony Collins - Houston TX, US
Jeffrey Tarvin - Brookfield CT, US

Assignee:

Schlumberger Technology Corporation - Ridgefield CT

International Classification:

G01V 3/20
G01V 3/00
G01V 3/18

US Classification:

324369, 324347, 324354, 324355, 324356, 324366, 175 50

Abstract:

Logging-while-drilling apparatus and methodologies for measuring streaming potential in an earth formation are provided. The apparatus and methodologies can be utilized to find information relevant to the drilling operations. In particular, since the streaming potential measurement relates directly to fluid flow, the streaming potential measurements can be used to track flow of fluids in the formation. In turn, this information may be used to find information relevant to the drilling operations, such as under-balanced drilling conditions, abnormal formation pressures, open fractures, the permeability of the formation, and formation pressure.

US Patent:

7586310, Sep 8, 2009

Filed:

Sep 9, 2005

Appl. No.:

11/223676

Inventors:

Min-Yi Chen - Pearland TX, US
Brian Clark - Sugar Land TX, US
Anthony Collins - Houston TX, US
Jeffrey Tarvin - Brookfield CT, US

Assignee:

Schlumberger Technology Corporation - Ridgefield CT

International Classification:

G01V 3/00
G01V 3/18

US Classification:

324347, 324351

Abstract:

Logging-while-drilling apparatus and methodologies for measuring streaming potential in an earth formation are provided. The apparatus and methodologies can be utilized to find information relevant to the drilling operations. In particular, since the streaming potential measurement relates directly to fluid flow, the streaming potential measurements can be used to track flow of fluids in the formation. In turn, this information may be used to find information relevant to the drilling operations, such as under-balanced drilling conditions, abnormal formation pressures, open fractures, the permeability of the formation, and formation pressure.

US Patent:

7798246, Sep 21, 2010

Filed:

May 30, 2006

Appl. No.:

11/420915

Inventors:

Anthony L. Collins - Houston TX, US

Assignee:

Schlumberger Technology Corporation - Sugar Land TX

International Classification:

E21B 47/00
E21B 47/024

US Classification:

175 40, 175 45

Abstract:

An apparatus and method to control the rotation of a downhole drill bit are disclosed. A pair of spaced-apart measuring or survey instruments at the drill string provide data that is analyzed to determine relative rotation between the instruments so that drag affecting the drill bit may be reduced.

US Patent:

20090095436, Apr 16, 2009

Filed:

Jul 18, 2008

Appl. No.:

12/175944

Inventors:

Jean-Louis Pessin - Houston TX, US
Laurent Coquilleau - Houston TX, US
Josh Rayner - Houston TX, US
Anthony L. Collins - Houston TX, US
Michael Woodmansee - Houston TX, US

International Classification:

B22D 25/08
B32B 15/01
F04B 17/00

US Classification:

164 95, 428577, 417366

Abstract:

A method of manufacturing composite parts for an apparatus handling abrasive fluids and an apparatus for handling abrasive slurries, for example, a centrifugal pump. Portions of the composite parts are cast in a two-stage process. Portions to be machined are cast in a material suitable for machining and portions exposed to abrasive slurries are cast in a material that is wear-resistant.

US Patent:

20200408047, Dec 31, 2020

Filed:

Mar 11, 2020

Appl. No.:

16/815330

Inventors:

- Philadelphia PA, US
Anthony Louis Collins - Houston TX, US

International Classification:

E21B 17/042
F16L 15/00

Abstract:

A threaded connection for drilling tubulars includes a tubular box section having a sidewall. The box section has a tapered box portion of an inner surface of the sidewall between a first end and a second end. The tapered box portion has internal threads, a first torque shoulder on a first side of the tapered box portion, and a second shoulder on a second side of the tapered box portion. A threaded collar having internal collar threads is positioned between the second end and the second shoulder. A threaded insert having a tubular body with an inner surface and an outer surface having external insert threads is configured for threadably connecting to the internal collar threads. A direction of the internal threads of the tapered box portion is opposite to a direction of the internal collar threads and the external insert threads.