Due Diligence

Independent Reviews

Data Interpretation & Integration


Regional Study

Led independent review of dozens of Pre-Salt tests to help guide investment decisions on discovered undeveloped asset bidding, farm-in opportunities & strategic alliances 

Oil Carbonate — Pre-Salt — Non-Matrix — Acid Stimulation 2018-22


Field-Wide Integrated Study

Led joint lithofacies modeling of Kalamkas field's 6 wells & independent re-interpretation of 4 DST's focused on topic of compartmentalization

Oil Sandstone PLT 2018


Resource Certification

Led interpretation & integration of pivotal Antelope interference tests for resource size advocacy to third-party certifiers, worked in compressed 20-week timeline

Gas Carbonate — Non-Matrix — Integration with Geomodel — 2017


Acquisition Due Diligence

In charge of ExxonMobil's in-depth review of InterOil's DST's of the Elk & Antelope prolific carbonate gas fields in PNG, ahead of their acquisition for $2.5B+

Gas Carbonate — Non-Matrix 2016


Field-Wide Integrated Study

Led joint lithofacies modeling of Bosi field's 14 wells & independent re-interpretation of 2 DST's

Oil Sandstone 2013


Regional Study

Reviewed 28 DST's conducted by Humble Oil, Texaco, Union Oil, and Chevron across Southern California between 1967 & 1989 to help guide new opportunity identification 

Oil Sandstone — Vintage Data — 2012


Subsurface Peer Review 

Re-interpreted 25 Hebron DST's conducted by Petro-Canada, Chevron, and Mobil between 1980 & 2000 to help guide internal subsurface peer review

Oil Sandstone — Vintage Data — 2011

Exploration & Appraisal DST

Design & Planning

Wellsite Supervision

Data Interpretation & Integration


PL 1016 Velocette

Led DST design & planning for test at wildcat prospect in Norwegian Sea to evaluate productivity & investigate reservoir continuity 

Gas Sandstone Deepwater Integration with Seismic 2023


Stabroek Block Liza, Payara, Yellowtail... 

Oversaw all 18 Guyana tests from 2016 to 2022, starting with Guyana's first DST ever

Extended flow & build-up tests designed to confirm sufficient connected volume for development viability, resulting in fast-track developments

Oil Gas Sandstone Deepwater Campaign Gravel-Pack Interference Integration with Seismic 2016-23


Block 10 Glaucus

Designed, planned & interpreted Glaucus-2 DST, which included an interference test with Glaucus-1, to confirm sufficient resource size for development viability

Gas Interference Deepwater — Integration with Geomodel 2019-22


PDL 9 Muruk

Advised Melbourne affiliate on design, operations & interpretation of Oil Search-led DST

Gas Sandstone Highlands — Remote Environment — 2018-19


 GoM Walker Ridge Julia

Advised on ramp-up & clean-up operations during flowback to tanker

Oil Sandstone Deepwater — DP to DP Flowback Frac-Pack 2016


Neptun Block Domino

Oversaw & led DST's at Domino & two other fields, with extended flow & build-up periods designed to confirm sufficient resource size for development viability

Managed replies to buyer on test-related topics, as part of divestment for $1B+ 7 years later

Gas Sandstone Deepwater Campaign Integration with Seismic 2014-15


Block 118 Cá Voi Xanh 

Led CVX-4X DST, designed to demonstrate producibility in an unappraised part of the reservoir

Gas Carbonate — Non-Matrix — H2S Deepwater 2014-15


Block 15 Mondo South

Led flowback designed to confirm sufficient connected volume of anchor reservoir underpinning the Kizomba Satellites Phase 2 project

Oil Sandstone Deepwater Flowback Gravel-Pack PLT on Tractor 2013-14


Black Sea & Kara Sea

Led DST planning for prospective tests at Universitetskaya & in Tuapse

Frontier Exploration — Remote Environment — Deepwater — 2012-14


Well Performance

Reservoir Surveillance

Data Interpretation & Integration


Stabroek Block Liza Phase 1 & Phase 2

Mentored 4 engineers through 12 wells on surveillance & well performance issues at Guyana's first-ever producing field

Oil Horizontal Producers Water & Gas Injectors WAG 2019-23


NCOC Kashagan

Advised 4 NCOC engineers on surveillance & well performance issues for 12 wells

Taught 40-hr well test course to NCOC's reservoir team in Atyrau (2017) & virtually (2020) 

Oil Mega-Field Carbonate — Non-MatrixAcid Stimulation Acid Gas Re-Injection 2018-21


Sakhalin-1 Chayvo, Arkutun-Dagi, Odoptu

Mentored 6 engineers through 50+ wells on surveillance, well performance issues, opportunity generation & regulatory reporting

Oil Sandstone Extended-Reach Wells Water & Gas Injectors 2017-22


Block 15 Kizomba A, B & C

Mentored 5 engineers through 40+ wells on surveillance, well performance issues & regulatory reporting

Oil Sandstone S-shaped Wells Water & Gas Injectors WAG — 2016-22

Carbon Capture & Storage

Design & Permitting



ExxonMobil Low Carbon Solutions

Helped establish the standard of design studies for water injection fall-off tests in carbon capture projects, both for reservoir understanding & EPA permitting purposes 

Aquifers targeted in LaBarge (WY), Pecan Island (LA) & more along the Gulf Coast, as well as in the UK North Sea

Training Course




ExxonMobil Houston Campus

Took over ownership & overhauled internal training course in 2016, turning it from the worst rated to the best rated course of all ExxonMobil's reservoir courses

Combines theory & practical considerations, illustrated throughout with actual field data 

Custom-made hands-on group exercises utilizing Saphir with ExxonMobil data of the Liza-2 & Liza-4 tests


ExxonMobil Bangalore Technology Center

Course tailored to reservoir pressure analysis & pressure transient analysis workflows


ExxonMobil Kuala Lumpur Technology Center

Course tailored to reservoir pressure analysis & pressure transient analysis workflows



Tailored to the interests & needs of the North Caspian Operating Company (operator of mega-field Kashagan): pressure transient responses in carbonates with excess permeability & in acidized wells, numerical modeling

Custom-made hands-on group exercises utilizing Saphir with NCOC data


ExxonMobil Houston

Taught 2-hr introductory lecture on well testing & pressure transient analysis to ExxonMobil's geoscience  new hires, 6 times between 2012 & 2015