Curriculum Vitae
Jeet Singh E-mail: acri62@r.postjobfree.com
Flat2, Exforde court Tel (mobile): +44-781*******
Ashford Middlesex
Surrey
TW15 3FD
Nationality: India Passport Number: F1717774
Marital status: Married
Date of birth: 06.06.1977
Senior Geophysicist
Summary
I have 13+ years geophysical experience, in the area of Seismic Imaging, Reservoir characterization, Seismic Data processing and Acquisition
•Anisotropic Velocity Model building
•Multi azimuth tomography (MAZ)
•Anisotropic calculation i.e. delta, epsilon and eta
•Pre-stack Depth migration (Kirchhoff’s Migration, Beam Migration)
•Reservoir characterization for conventional and unconventional resources
•Characterization of tight/Shale gas reservoirs, integrating drilling, completion and production data
•Geo-bodies picking, Reservoir thickness estimation, Net pay estimation
•Ability to build complex geological/geophysical models
•Proven experience in seismic inversion and AVO technique
•Qualitative Interpretation (QI) studies, uncertainty estimation, development/appraisal well planning, updating field development plans
•ability to built seismic data processing flow analysis in 2D&3D (Marine, land)
•Pre-stack Time migration
•Pre-stack Depth migration
•Excellent presentation skills
Software Skills
Good experience with various Geophysical Software packages, including Galaxy (ION), Geocluster TM, ProMax TM, Hampson-Russell and Fugro-Jason- JGW
Competent with UNIX& Linux System
Knowledge in windows Systems Microsoft Office 2000, XP (Excel, PowerPoint)
Software Experience
Unix &Linux Operating system
ProMax TM - Land Mark
Hampson-Russell - CGGVERITAS
Geocluster TM /5000 level - CGGVERITAS
Fugro-Jason JGW - Fugro Jason
Galaxy for VMB-ION
Work Experience:
05.2013 – to till date Senior Imaging Geophysicist, ION, LONDON (UK)
Isotropic Velocity modelling
Anisotropic Velocity update
Anisotropic Calculation(Delta, Epsilon and eta)
Multi azimuth Tomography(MAZ)
Preconditioning and Data preparation for velocity Model Building(VMB)
Non hyperbolic parametric General moveout picking(GMO)
09.2009 – 04.2013 Senior Geoscientist, Reliance industries limited
Reservoir characterisation for EAGLE FORD& MARCELLUS Shale gas project. To create and interpretation of Geo-mechanics attribute (Brittleness volume, Poisson ratio etc,) for sweet spot identification from inverted volume for shale gas technology
•Integrate the simultaneous Inverted result and Geo-mechanics attribute integrating drilling, completion and production data for further development
•Jason Geo-systems: Senior Project Geoscientist, responsible for feasibility studies, running inversions, and interpreting the inversion result. Geo-bodies thickness estimation and Net pay estimation
•Task includes reservoir characterization using Jason Geosciences Workbench technology, well-logs interpretation, well tying and AVO techniques
•Company Representative, 3D Seismic Inversion (East Coast of India, 2400 Sq.KM) project QC in Fugro Jason
•Responsibilities for advance seismic processing and data preparation flow for 3D Seismic Inversion, Wavelet estimation. Well to seismic tie. Log editing and Low Frequency model Building (LFM)
2005 – 2009 Geophysicist, Reliance Industries Limited
Responsible for AVO attributes creation
Geophysicist; Responsible for Seismic Velocity Analysis and Model Building using 2D/3D tomography, Depth imaging. From Initial Depth Velocity Model, Residual Move-out, tomography, and Model updating using Kirchhoff Pre-SDM technique
Working in Different Velocity Model Representation i.e. Layer- based, Gridded and Hybrid models tomography.
Geophysicist; responsible for all testing required decision for 2D/3DMarine Time imaging. Experience with in-time knowledge of bulk processing applications such as De-noise process (Swell Noise, Linear Noise, Seismic Interference Noise, RNA and etc.), Multiple suppression (2D/3D SRME),by Radon De-multiples, Diffracted multiple attenuation,Different Data regularization technique and Bin centring, Kirchhoff Pre-STM technique
Company Representative for the 2D marine seismic data processing (East Coast of India, 29000 LKM), In CGGVERITAS
Technical Bid Evaluation, Documentation, including discussions with various Contractors regarding technical Exception / deviation / clarification
2004 - 2005 Geophysicist, Alpha Geo (India) Limited
2D land of seismic data processing (Oil India Ltd.-1000LKM), which is including testing and production parameter optimization from setting up of field geometry up to final Migration.
Working in Refraction Static of 2D land of seismic data, Picking for first break, ProMAX Refraction model
Preparation of test jobs & management of seismic database.
2003 – 2004 Trainee Geophysicist, Directorate general of Hydrocarbon (DGH)
Seismic data processing, responsible for all aspects of processing which includes preparation and production of jobs for various steps of processing, from setting up of field geometry up to final Migration
Archival of Seismic Data.
Management of Seismic Database
2002 - 2003 Project Geophysicists, National Geophysical Research Institute (NGRI)
Interpretation of Gravity Data for Multi-Scaling Geology: Cuddapah Basin
Publication
Multi-scaling Nature of gravity field, 5th Conference & Exposition on Petroleum Geophysics, Society of Petroleum Geophysicist, 2004, pp. 35-38.
Noise Attenuation and Pre-conditioning of seismic data for Pre-STM, Pre-SDM in deep water environment- East Coast of India, 7th Biennial International Conference & Exposition on Petroleum Geophysics, Society of Petroleum Geophysicist, 2008, P-418.
Sensitivity Analysis for Simultaneous Inversion of Angle limited seismic stacks, 9th Biennial International Conference & Exposition on Petroleum Geophysics, Society of Petroleum Geophysicist, 2012.
Educational Qualification:
M. Tech. in Applied Geophysics (2000-2003) with 76% from Kurukshetra University, Kurukshetra
Bachelor of Instrumentation (1996-99) with 58% from Kurukshetra University, Kurukshetra
Training – Technical
1. Attended American-Business-Conferences on “TIGHT OIL EAGLE FORD” Eagle Ford: 2nd Annual Congress, in 2012 Houston, Texas
2. One month CEFOGA training course on GeoclusterTM 2D and 3D time processing in CGG division Massy, Paris
3. Two weeks CEFOGA training course on GeoclusterTM 3D Depth processing in CGG division Massy, Paris
4. Depth Imaging and Velocity Model Building workshop by Ion Jones GX-Technology
5. Attended a five days course on “Introduction to Simultaneous 3D Inversion” in June 2010, arranged by Fugro-Jason in Mumbai, India
6. Attended a five days course on “Introduction to Geo-statistical Inversion” in December 2010, arranged by Fugro-Jason in Mumbai, India
QHSE
1-Safety Training (Fire Prevention and Fire Fighting, Personal Survival Techniques, Personal Safety, First Aid, and Helicopter Underwater Escape
Seismic Depth Imaging Projects Work
Project 1. Shallow gas anomalies Imaging studies (Statoil Skrugard).
Field Location: Norwegian Sea
Project Objectives: To resolve the shallow gas anomalies with Q-Migration for better deep imaging with complex geology
Run TTI Kirchhoff’s Q-migration in 4000 square Km area to resolve the complex geology. Anisotropy itself were challenging for 200m shallow quaternary layer
Effort were made to resolve the shallow gas anomalies by inserting low Q –values(Q=20)
Project 2. Multi Azimuth survey Imaging studies (Tullow Ghana).
Field Location: Tullow Ghana offshore 3D
Multi Azimuth tomography (MAZ) to update common velocity model from 4 overlap survey. General moveout picking were made from four survey independently and inverting in MAZ tomography to update common velocity model.
Project 3. Core Energy Imaging studies (Core Energy).
Field Location: Norwegian Sea
Joint tomography Inversion (update velocity and epsilon field).TTI Kirchhoff’s Migration, Beam Migration
Project 4. Imaging studies for Norwegian sea (Centrica).
Field Location: Norwegian Sea
Anisotropic velocity model building (VMB) for Norwegian sea and run TTI Kirchhoff’s Migration. Joint tomography Inversion (update velocity and epsilon field).TTI Kirchhoff’s Migration,
Reservoir Characterization Projects Work
Project 1. Pre-stack inversion studies for KG-DWN-98/3 block (known as KG – D6 block).
Field Location: The area under study is located at east coast of India.
Project Objectives: Improve current understanding of reservoir distribution and continuity for satellite discoveries and to reduce the drilling risks and also to optimize number of wells to be drilled to develop these reservoirs. This is to be achieved by:
Run Simultaneous Inversion in 2400 square Km area using improved seismic data and output quality P-impedance, Vp/Vs and S-impedance products. Assess if it provides better P, S,Vp/Vs results leading to better understanding of reservoir continuity
Effort for getting output density volume by taking advantage of wide angle range available in given seismic data to assess if the output density volume is able to help delineate between saturated gas bearing reservoir sands from fizz water/brine reservoir sands.
Reservoir: Reservoirs in satellite discovery were identified in Pleistocene, Pliocene and Late Miocene rocks. In terms of elastic properties, these gas reservoirs are characterized by low P Impedance and low Vp/Vs. The Middle Miocene reservoir is characterized by high P Impedance (but less than surrounding shale) and low Vp/Vs.
Results: Relative P-impedance, Vp/Vs and Density Cubes, Absolute P-impedance, Vp/Vs and density Cubes, RTI cube etc.
Challenges: The major challenge of reservoir characterization is the presence of thin gas, laminated gas and fizz gas reservoirs. Sand compaction varies from much unconsolidated sand (Pleistocene reservoir) to highly consolidated sand (Middle Miocene reservoir).
Advance Feasibility Study for Density Inversion: Forward modelling is done for selection of number of angle stacks for density inversion and range of angle stacks.
Project 2. Seismic Data preparation for Inversion study KG-DWN-98/3 block (known as KG – D6 block).
Field Location: The area under study is located at east coast of India.
Project Objectives: Improve existing 2400 square km PSTM gathers and velocity field for good reservoir characterization to develop these reservoirs.
This is to be achieved by:
Gathers are improved by Radon de-multiple process by removing the water bottom multiple, masking the reservoir zone
Re-picked the high density anisotropic velocity from improved gathers for flattening the gathers up to far angle for density inversion
Project 3. Pre-stack inversion studies for CB-ONN1-10 block (known as Cambay block)
Field Location: Cambay basin
Project Objectives: 1) Reservoir characterization is done using pre-stack simultaneous inversion and rock physics model. 2) Reservoir model to detect lateral extent of reservoir MBS sand.
Data Availability: PSTM gathers for all blocks acquired and processed.
Reservoir: Miocene Basal Sand.
Results: Acoustic impedance, shear impedance and Vp/Vs were the main inversion outputs which were used further for litho logy classifications (shale, gas and brine sand) with their corresponding probability. Reservoir sand are characterised by high acoustic impedance sand, high shear impedance sand and low Vp/Vs. Geo-bodies picking, Reservoir thickness estimation, Net pay estimation
Challenges: Forward modeling sensitivity analysis is done for calculation number of angle stacks used in Simultaneous Inversion (improvement in inverted P impedance, Vp /Vs and. Seismic Interval velocity up to 2Hz is used for Ultra low frequency modelling (ULFM)
Project 4. Pre-stack Simultaneous Inversion for Sweet spot identification and integrated Geo-mechanical properties with Drilling, completion parameter and Production data for Unconventional Reservoir (EAGLE FORD SHALE)
Field Location: North America (EAGLE FORD SHALE)
Project Objectives: Delineate the sweet spot area in terms of more brittle of unconventional reservoir. Uncertainty estimation, development/appraisal well planning, updating field development plans.
This is to be achieved by:
Run Simultaneous Inversion in 420 square miles area using angle stack and output are P-impedance, Vp/Vs and S-impedance products. These elastic properties convert in Lambda Rho, Mu Rho, Poisson ratio and Young’s modulus.
Data Availability: Seismic angle stacks, horizontal well, Pilot well data
Reservoir: Lower EAGLE FORD is the main shale gas reservoir and is characterized by low Lambda Rho, High Mu Rho, low Vp/Vs and low Poisson ratio with high probability of litho logy.
Results: Acoustic impedance, shear impedance, Vp/Vs, Poisson ratio, LambdaRho, MuRho and Litho cubes with their corresponding probability.
Challenges: The main challenge was the mid angle stack misaligned with reference to near angle stack and far angle stack. Mid angle stack is aligned with quasi correlation method.
Integration: Geo mechanical properties (Lambda Rho, Mu Rho and Vp/Vs) integrated with drilling & completion parameter (Breakdown pressure, Average pressure, prop ant volume and ISIP pressure, etc.) for hydraulic fracking, production data, EUR and chemical tracer data along the well trajectories.
Project 5. Pre-stack Simultaneous Inversion for Sweet spot identification and integrated Geo-mechanical properties with Drilling and completion parameter for Unconventional Reservoir (Marcellus Shale)
Field Location: North America C-County (Centre 3D).
Project Objectives: Delineate the sweet spot area in terms of more brittle of unconventional reservoir. Uncertainty estimation, development/appraisal well planning, updating field development plans.
This is to be achieved by:
Run Simultaneous Inversion in 45 square miles area using angle stack and output are P-impedance, Vp/Vs and S-impedance products. These elastic properties convert in Lambda Rho, Mu
Data Availability: Seismic angle stacks, horizontal well, Pilot well data
Reservoir: Marcellus shale having a streak of cherry valley limestone and bounded by Tully lime stone and Onondaga lime stone. Basal Marcellus is the main shale gas reservoir and is characterized by low Lambda Rho, High Mu Rho, low Vp/Vs and low Poisson ratio with high probability of litho logy.
Results: Acoustic impedance, shear impedance, Vp/Vs, Poisson ratio, LambdaRho, MuRho and Litho cubes with their corresponding probability.
Challenges: non availability of shear log in vertical well, anisotropic behaviour of shale, different density trend between horizontal and vertical wells and acquisition footprints in seismic data. Rock physics modelling and seismic data conditioning were used to overcome these challenges.
Integration: Geomechical properties (LambdaRho, MuRho and Vp/Vs) integrated with drilling & completion parameter (Breakdown pressure, Average pressure, prop ant volume and ISIP pressure, etc.) for hydraulic fracking along the well trajectories.
Project 6. Pre-stack Simultaneous Inversion for Sweet spot identification and integrated Geo-mechanical properties with Drilling and completion parameter for Unconventional Reservoir (Marcellus Shale)
Field Location: Wyoming County (North America).
Project Objectives: Delineate the sweet spot area in terms of more brittle of unconventional reservoir. Uncertainty estimation, development/appraisal well planning, updating field development plans.
This is to be achieved by:
Run Simultaneous Inversion in 45 square miles area using angle stack and output are P-impedance, Vp/Vs and S-impedance products. These elastic properties convert in Lambda Rho, Mu
Data Availability: Seismic angle stacks, horizontal well, Pilot well data
Reservoir: Marcellus shale having a streak of cherry valley limestone and bounded by Tully lime stone and Onondaga lime stone. Basal Marcellus is the main shale gas reservoir and is characterized by low Lambda Rho, High Mu Rho, low Vp/Vs and low Poisson ratio with high probability of litho logy.
Results: Acoustic impedance, shear impedance, Vp/Vs, Poisson ratio, LambdaRho, MuRho and Litho cubes with their corresponding probability.
Challenges: non availability of shear log in vertical well, anisotropic behaviour of shale, different density trend between horizontal and vertical wells and acquisition footprints in seismic data. Rock physics modelling and seismic data conditioning were used to overcome these challenges.
Integration: Geomechical properties (LambdaRho, MuRho and Vp/Vs) integrated with drilling & completion parameter (Breakdown pressure, Average pressure, prop ant volume and ISIP pressure, etc.) for hydraulic fracking along the well trajectories.
Project 7. Post stacks Constrained Sparse Spike Inversion for identify the Sweet area on the basis of low Acoustic P-Impedance for Unconventional Reservoir (Marcellus Shale)
Field Location: Waynesburg 3D (North America).
Project Objectives: Delineate the sweet spot area in terms of more brittle of unconventional reservoir. Uncertainty estimation, development/appraisal well planning, updating field development plans.
This is to be achieved by:
Run CSSI inversion in 154 square miles area using full offset stack and output is P-impedance
Data Availability: Full offset stack seismic, Pilot well data
Reservoir: Marcellus shale having a streak of cherry valley limestone and bounded by Tully lime stone and Onondaga lime stone. Basal Marcellus is the main shale gas reservoir and is characterized by lowest P-Impedance, High porosity.
Results: Acoustic impedance, Porosity volume is generated from Acoustic impedance.