Jun Cao Email & Phone Number

Houston, Texas, United States

Houston, Texas, United States

Houston, Texas, United States

Reservoir seismic inversion/characterization R&D: elastic FWI, elastic AVA inversion, Machine Learning augmented seismic inversion

Houston, Texas, United States

Developed amplitude friendliness for Least-Squares Kirchhoff Migration (LSKM), applied LSKM and demonstrated it can provide AVO friendly image, improve steep dip imaging , and mitigate acquisition related issues.

Houston, Texas, United States

Took on and completed very well many challenging seismic processing, model building & imaging projects and investigation work, through which made significant contributions and impacts to programs across the world, including Alaska, Permian basin, Australia, Malaysia, Norway, and Surmont.

Research and develop leading edge time-lapse analysis tools and workflows to improve existing practices and enable fully integrated and efficient 4D seismic analysis and 4D Close-the-Loop workflows• Proposed, developed, productionized, and applied a Data Driven Method Using Machine Learning for Reliably and Efficiently Inverting 4D Reservoir Properties’ Change from joint use of multiple 3D/4D seismic attributes to overcome challenges in existing methods. • Developed and deployed functionality in Petrel for calculating 4D attributes to enable fully integrated efficient 4D analysis.• Developed and deployed 4D Rock Physics Feasibility Tool for predicting 4D seismic responses to help interpret 4D seismic data and evaluate 4D responses of different development scenarios.• Conducted company-first DAS Data Processing & Production Profiling Analysis for heavy oil reservoir in supporting production forecasting and surveillance cost optimization. • Researched and Evaluated Different Time-Lapse Full Waveform Inversion (FWI) methods. Evaluated Limitations of Scalar Time Lapse FWI for elastic data and investigated ways to mitigate that limit.

Researched, developed, and applied a suite of efficient, flexible, and integrated tools & workflows on Advanced 3D Seismic Illumination/Visibility Analysis and Illumination Compensated & Visibility Enhanced Imaging using wave equations or ray tracing for improving seismic acquisition design, imaging, and interpretation in complex geologies such as sub-salt and sub-gas areas:• Proposed, Developed, and Applied 3D Angle Domain Full-Wave Illumination Analysis and Imaging Illumination Compensation. Applications showed significantly improved image than deconvolution imaging condition.• Proposed, Developed, and Applied Efficient and Flexible Full-Wave Target-Oriented 3D Visibility Analysis and Visibility Guided/Enhanced Imaging for evaluating and designing acquisition geometry and improving & accelerating target imaging. Applied analysis to DWGOM and Norway projects for acquisition design; and applied visibility guided/enhanced imaging to DWGOM subsalt field data.• Proposed, Developed, and Applied Efficient 3D Critical Reflection Illumination Analysis based on ray tracing for analyzing poor sub- high velocity (e.g., subsalt) image quality and recommending solution. Applied to subsalt projects: result indicated the poor image at one subsalt prospect cannot be improved by conventional surface seismic due to post-critical effect which saved an expensive surface seismic survey; further researched potential solutions to improve the target imaging.• Developed an Efficient 3D One-Way Wave-Equation Based Angle-domain Illumination Analysis and applied to DWGOM subsalt project to evaluate the impact of different acquisition geometries on subsalt imaging.

Santa Cruz

Researched and developed towards the Wave-Equation Based True-Amplitude Imaging correcting the wave propagation, acquisition geometry, and overburden effects:• Researched effect of different amplitude correction terms especially that related to lateral velocity variation in ‘True-Amplitude’ One-Way Wave Propagator (TAOWP). Derived two types of asymptotic TAOWP: wide-angle screen (WAS) and FFD. Evaluated two implementations of WAS amplitude correction. Proposed and developed a global optimization to improve the accuracy of the TAOWP. Derived and implemented accurate formula for full-wave finite-difference modeling for benchmarking TAOWP.• Proposed and developed an efficient scheme for one-way wave equation based local-angle domain (LAD) image illumination correction. Evaluated two local plane wave decomposition methods.• Proposed and developed LAD full-wave illumination analysis for accurate acquisition design and true-amplitude imaging. Proposed and analyzed two local plane wave decomposing methods for full-wave illumination.• Investigated influence of wave propagator amplitude correction and LAD illumination correction for true-amplitude imaging. Results showed illumination effect is much more significant than the former.

Houston, Texas, United States

Investigated and illustrated using GOM Thunder Horse model the relative importance of low frequency and long offset in mitigating the non-linearity (cycle-skipping) of FWI, FWI’s capability for providing a good salt top, and multiples’ contribution in FWI. Results provided valuable information for future FWI applications and seismic acquisition design preference on frequency and offset for FWI.

Doctor Of Philosophy - Phd, Geophysics

Master Of Science - Ms, Geophysics

Bachelor Of Science - Bs, Geophysics