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Colin M Sayers

from Katy, TX
Age ~73
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Also known as:
Colin Michael Sayers, Colin V Sayers, Michael Mategka
Phone and address:
1506 Leatherwood Dr, Katy, TX 77450
(281) 398-0186
Related to:
Ruth E May, 75Ruth H Sayers, 38Helmut MatejkaAngelika Matejka, 54Rachel C Sayers, 34Angelica MatejkaAngelika MatejkaPauline Sayers, 63Michael C Matejka, 54
Connected to:
Agnes C Sayers, 89Angel Sayers, 53Anne M Sayers, 43Antoinette M Sayers, 75Brad H Sayers, 49Bruce A Sayers, 56Cameron W Sayers, 52Carly M Sayers, 41Carol A Sayers, 62Charlene W Sayers, 70

Colin Sayers Phones & Addresses

  • 1506 Leatherwood Dr, Katy, TX 77450 (281) 398-0186 (281) 398-0046
  • Houston, TX

Resumes

Resumes

Colin Sayers Photo 1

Adjunct Professor, Geomechanics, Geophysics And Rock Physics

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Location:
Houston, TX
Industry:
Oil & Energy
Work:
University of Houston
Adjunct Professor, Geomechanics, Geophysics and Rock Physics
Schlumberger Jul 2012 - Jul 2012
Scientific Advisor Seismic For Unconventionals , Schlumberger Geosolutions
Shell Sep 2002 - Aug 2003
Principal Geoscientist
Schlumberger Sep 1998 - Aug 2002
Principal Geophysicist
Schlumberger Sep 1991 - Aug 1998
Senior Research Scientist
Education:
Dyson School of Design Engineering 1973 - 1976
Doctorates, Doctor of Philosophy, Physics School of Computing and Communications at Lancaster University 1970 - 1973
Bachelors, Bachelor of Arts, Physics Norwich City College of Higher and Further Education
Skills:
Petrophysics
Geophysics
Seismology
Geomechanics
Reservoir Management
Earth Science
Logging
Rock Mechanics
Characterization
Petroleum Geology
Modeling
Fracture
Geology
Drilling
Pore Pressure Prediction
Unconventional
Upstream
Anisotropy
Petrel
Inversion
Wellbore Stability
Reservoir Engineering
Formation Evaluation
Wireline
Reservoir Simulation
Petroleum Engineering
Reservoir Modeling
Seismic Attributes
Seismic Inversion
Log Analysis
Physics
Oilfield
Stress Dependent Acoustics
Uncertainty Analysis
Inverse Problems
Seismic Anisotropy
Borehole/Seismic Integration
Geological Mapping
Rock Physics
Reservoir Geomechanics
Seismic Imaging
Avo
Geostatistics
Unconventional and Fractured Reservoirs
Advanced Sonic Logging
Mechanical Earth Modeling
Wellbore Stability Analysis
Sedimentology
Data Acquisition
Seismic Reservoir Characterization
Interests:
Reservoir Geomechanics
3D Mechanical Earth Modeling
Borehole/Seismic Integration
See 6+See Less
Advanced Sonic Logging
Subsidence
Avaz
Fluid Flow In Fractured Reservoirs
Wellbore Stability Analysis
Pore Pressure Prediction
Fractured Reservoir Evaluation
Fault Reactivation
Rock Mechanics
Stress Dependent Acoustics
Rock Physics
Sanding
Colin Sayers Photo 2

Owner

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Location:
Houston, TX
Industry:
Environmental Services
Work:
Sayers International Services
Environmental Geologist
Sayers International Training Services
Owner
Education:
Dyson School of Design Engineering 1973 - 1975
Master of Science, Masters, Geology Baylor University 1969 - 1972
Bachelors, Bachelor of Science, Geology
Colin Sayers Photo 3

Scientific Advisor, Seismic Solutions For Unconventional Resources, Schlumberger

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Position:
Scientific Advisor, Seismic Solutions for Unconventional Resources at Schlumberger
Location:
Houston, Texas
Industry:
Oil & Energy
Work:
Schlumberger - Houston since Jul 2012
Scientific Advisor, Seismic Solutions for Unconventional Resources
Schlumberger Sep 2003 - Jul 2012
Scientific Advisor
Shell Sep 2002 - Aug 2003
Principal Geoscientist
Schlumberger Sep 1998 - Aug 2002
Principal Geophysicist
Schlumberger Sep 1991 - Aug 1998
Senior Research Scientist
Education:
Imperial College London 1973 - 1976
D.I.C. & Ph.D., Physics Lancaster University 1970 - 1973
B.A. (1st Class Honours), Physics
Skills:
Rock Physics
Reservoir Geomechanics
Seismic Reservoir Characterization
Unconventional and Fractured Reservoirs
Seismic Anisotropy
Borehole/Seismic Integration
Stress Dependent Acoustics
Advanced Sonic Logging
Mechanical Earth Modeling
Pore Pressure Prediction
Wellbore Stability Analysis
Rock Mechanics
Geomechanics
Modeling
Anisotropy
Fracture
Petrophysics
Seismology
Wellbore Stability
Reservoir Management
Characterization
Unconventional
Geophysics
Geological Mapping
Seismic Inversion
Logging
Seismic Imaging
Log Analysis
Petrel
Drilling
AVO
Physics
Geostatistics
Geology
Upstream
Earth Science
Inversion
Sedimentology
Petroleum Geology
Data Acquisition
Oilfield
Interests:
Rock physics, pore pressure prediction, wellbore stability analysis, reservoir geomechanics, analysis of production-induced reservoir stress changes, subsidence, fault reactivation, 3D mechanical earth modeling, sanding, fractured reservoir evaluation, borehole/seismic integration, stress-dependent acoustics, advanced sonic logging, rock mechanics, AVAZ, fluid flow in fractured reservoirs.
Honor & Awards:
2010 SEG/EAGE Distinguished Instructor Short Course presenter

Publications

Wikipedia

UserColin Sayers

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User:Colin Sayers. From Wikipedia, the ... Schoenberg, M.; and Sayers, C.M.; 1995, Seismic anisotropy of fractured rock, Geophysics, 60, 204-211. Coates, R.T. ...

Us Patents

Determination Of Anisotropic Moduli Of Earth Formations

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US Patent:
6714480, Mar 30, 2004
Filed:
Mar 6, 2002
Appl. No.:
10/091657
Inventors:
Bikash K. Sinha - West Redding CT
Colin Michael Sayers - Katy TX
Takeshi Endo - Sagamihara, JP
Assignee:
Schlumberger Technology Corporation - Ridgefield CT
International Classification:
G01V 140
US Classification:
367 31, 181104, 175 40, 175 50, 702 18
Abstract:
A method for determining properties of a transverse isotropic region of earth formations traversed by a wellbore having substantially vertical and deviated sections therethrough, including measuring sonic velocity properties in formations surrounding the substantially vertical section of the wellbore; measuring sonic velocity properties in formations surrounding the deviated section of the wellbore; and determining, from the measured velocities, all of the transverse isotropic elastic constants of the region.

Method And System For Pre-Drill Pore Pressure Prediction

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US Patent:
7299132, Nov 20, 2007
Filed:
Aug 7, 2006
Appl. No.:
11/499931
Inventors:
Colin M. Sayers - Katy TX, US
Richard A. Birchwood - Houston TX, US
Assignee:
Schlumberger Technology Corp. - Houston TX
International Classification:
E21B 44/00
G01V 9/00
US Classification:
702 9, 702 6, 700160, 700173, 7315201, 7315203, 7315243
Abstract:
A method for pore pressure prediction. The method includes obtaining a stress sensitivity coefficient, obtaining a compressional wave (P-wave) velocity and a shear wave (S-wave) velocity for a pre-drill location and obtaining a first predicted pore pressure. Further, the method includes iteratively performing calculating a total stress value associated with the pre-drill location using the first predicted pore pressure associated with the pre-drill location, and calculating a second predicted pore pressure associated with the pre-drill location using a stress-pressure relationship equation, a stress-velocity relationship equation, the stress sensitivity coefficient, a reference location, and at least one selected from a group consisting of the P-wave velocity and the S-wave velocity for the pre-drill location, and adjusting a drilling operation associated with the pre-drill location, based on the second predicted pore pressure.

Methods And Apparatus For Predicting The Hydrocarbon Production Of A Well Location

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US Patent:
7486589, Feb 3, 2009
Filed:
Feb 9, 2006
Appl. No.:
11/350639
Inventors:
Donald W. Lee - Houston TX, US
Lennert D. den Boer - Calgary, CA
Colin M. Sayers - Katy TX, US
Patrick J. Hooyman - Houston TX, US
Assignee:
Schlumberger Technology Corporation - Sugar Land TX
International Classification:
G01V 1/50
US Classification:
367 35
Abstract:
Methods and apparatus that use microseismic event data, stress data, seismic data, and rock properties to predict the hydrocarbon production success of a well location are disclosed. An example method generates a hydrocarbon production function based on information associated with at least a first well location, obtains information associated with a second well location, and calculates the hydrocarbon production function using the information associated with the second well location to predict the hydrocarbon production of the second well location.

Method, Apparatus And System For Pore Pressure Prediction In Presence Of Dipping Formations

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US Patent:
7490028, Feb 10, 2009
Filed:
Apr 10, 2003
Appl. No.:
10/426352
Inventors:
Colin M Sayers - Houston TX, US
Sudhendu Kashikar - Houston TX, US
Patrick J. Hooyman - Houston TX, US
International Classification:
G06G 7/48
US Classification:
703 10, 1662551, 1662801, 166 66, 166281, 166 60
Abstract:
A method, apparatus and system for predicting the formation pressure ahead of a bit in a well, which includes using measurements taken in shales and permeable formations at or near the bit together with centriod calculations to improve models predicting what the pressures ahead of the bit will be.

Method, System And Apparatus For Determining Rock Strength Using Sonic Logging

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US Patent:
7526385, Apr 28, 2009
Filed:
Jun 22, 2007
Appl. No.:
11/821451
Inventors:
Colin M. Sayers - Katy TX, US
Assignee:
Schlumberger Technology Corporation - Houston TX
International Classification:
G01V 1/40
G06G 7/48
US Classification:
702 13, 703 10
Abstract:
A method is disclosed for determining a rock strength of an Earth formation, including: receiving a signal representing a measured variation of velocities or slownesses as function of radius from and azimuth around a borehole; generating predictions from a Mechanical Earth Model (MEM) representing predictions of a variation of stress and hence velocity as a function of distance from, and azimuth around, the borehole, the MEM including a rock strength model adapted for generating a further prediction representing a predicted variation of velocities or slowness; changing the rock strength in the rock strength model of the Mechanical Earth Model until the further prediction substantially matches the measured variation in velocity around and from the borehole; and generating a set of parameters, wherein the parameters are used to populate the MEM and are used in subsequent calculations.

Method And System For Altering Pore Pressure In A Fracturing Operation

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US Patent:
7533725, May 19, 2009
Filed:
Dec 29, 2006
Appl. No.:
11/648036
Inventors:
Ali Mese - Houston TX, US
Colin M. Sayers - Katy TX, US
Donald Lee - Houston TX, US
Patrick J. Hooyman - Houston TX, US
Assignee:
Schlumberger Technology Corp. - Houston TX
International Classification:
E21B 43/26
US Classification:
1663082, 1661775
Abstract:
A method and a system for accessing a target fluid in a formation of an oilfield are provided. The method involves acquiring physicochemical property information of a portion of the formation, determining a type and a concentration of a chemical agent based on the physicochemical property information of the portion of the formation, and applying the chemical agent at the portion of the formation to provide a chemical action, where the target fluid is released at the portion of the formation responding to the chemical action.

Method And System For Pre-Drill Pore Pressure Prediction

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US Patent:
7617051, Nov 10, 2009
Filed:
Aug 23, 2007
Appl. No.:
11/844303
Inventors:
Colin M. Sayers - Katy TX, US
Richard A. Birchwood - Houston TX, US
Assignee:
Schlumberger Technology Corporation - Sugarland TX
International Classification:
E21B 44/00
G01V 9/00
US Classification:
702 9, 703 2, 703 10
Abstract:
In general, the invention relates to a method for pore pressure prediction. The method includes obtaining a compressional wave (P-wave) velocity and a shear wave (S-wave) velocity for a pre-drill location, calculating an effective stress at the pre-drilling location using a stress-velocity relationship equation, the compressional wave (P-wave) velocity and the shear wave (S-wave) velocity, obtaining a total stress at the pre-drill location, calculating a predicted pore pressure, at the pre-drill location, using the effective stress, the total stress and a stress-pressure relationship equation, and adjusting a drilling operation associated with the pre-drill location, based on the predicted pore pressure.

Determination Of Point Of Sand Production Initiation In Wellbores Using Residual Deformation Characteristics And Real Time Monitoring Of Sand Production

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US Patent:
7653488, Jan 26, 2010
Filed:
Aug 23, 2007
Appl. No.:
11/844251
Inventors:
Ali I. Mese - Houston TX, US
Colin Michael Sayers - Katy TX, US
Robert Andrew Holicek - Katy TX, US
Dan Shan - Houston TX, US
Donald W. Lee - Houston TX, US
Jorge Aurelio Santa Cruz Pastor - Katy TX, US
Assignee:
Schlumberger Technology Corporation - Sugar Land TX
International Classification:
G01V 9/02
US Classification:
702 6, 702 11, 702 12, 702 50
Abstract:
Predicting sand production in a wellbore. A first set of characteristics is determined for a formation in the wellbore, wherein determining uses a plastic model of the formation, and wherein the first set of characteristics comprises a yield surface, a failure surface, a stress total strain, an elastic strain, and a plastic-strain relationship. A relationship among a second set of characteristics of the wellbore is determined using an effective stress model, wherein the second set comprises a drawdown pressure, a production rate, pore pressure, a temperature and a viscosity of a fluid in the wellbore, a fluid flow pressure in the wellbore, a drag force of fluid flow in the wellbore, and a type of fluid flow in the wellbore. A critical total strain is determined for the formation using the first set of characteristics and the relationship. The critical total strain is calibrated using a thick wall test.
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Colin M Sayers from Katy, TX, age ~73 Get Report