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The global energy sector from a subsurface perspective

Production

An Electrical Rock Physics Framework For CSEM Interpretation

Daniel Baltar, Neville Barker (EMGS), Matthew Carr and Christopher Schmidt (QI Petrophysics)
A low-resolution rock physics framework relating CSEM-derived Rn measurements to reservoir properties can provide precise property estimates even in high-uncertainty settings. In the November 2015 issue of the AAPG Explorer,…

Teamwork at Rangely

Thomas Smith
Colorado’s Rangely oil field, with over 900 MMb of oil produced, has been viable and economic for more than seven decades thanks to an innovative and flexible approach. One of…

Avoiding Reservoir Souring

John J. Kilbane II , Intertek
Determining the source of hydrogen sulphide on an offshore oil production platform is an important part of preventing or controlling this unwanted gas. Hydrogen sulphide (H2S) is a corrosive and…

Water Matters!

Hans-Martin Schulz, Wolfgang van Berk, and Yunjiao Fu, WiPS Consulting GmbH, Germany
Water occurs virtually everywhere in oil and gas fields – yet it is often ignored. But the composition of today´s formation water is the result of multiple hydrogeochemical processes, and…

The Pain and Sorrow of Reservoir Modeling

Stephen Tyson, Ph.D.
Back in the late eighties our ambition was to put modeling capabilities on every geoscientist’s desk. Now in 2015 that aim has been achieved, but are we actually producing the…

The Quantification of Uncertainty in Reservoir Management

Nikki Jones
New developments in history matching improve uncertainty quantification and risk assessment in reservoir management. Improving the analysis of risk in field management is the Holy Grail of reservoir modelling and in…

The Present is the Key to the Past

Clif Jordan and Rick Schatzinger
The Principle of Uniformitarianism gives confidence in selecting well sites through looking at Holocene facies analogues. The Principle of Uniformitarianism states that the causes and rates of geologic processes that…

Integrating Data Types for Reservoir Characterisation

Scott Singleton, ION Geophysical
From microscopic core analysis of the wellbore to seismic data measurements of rock properties between wells, a multidisciplinary team is essential when solving exploration and production problems in complex reservoirs.…

Improving Reservoir Characterisation

Lucy MacGregor, RSI Inc.
Reservoir characterisation can be improved through the integrated analysis of CSEM, seismic and well log data. Determining reservoir geometry and properties from the surface is a challenging but important task.…

The Value of Monitoring Fractures

Charles Sicking, Global Geophysical
Real time frac monitoring shows the progression of fractures opened during the fracking process, knowledge which can impact drilling decisions. Unconventional reservoirs are a growing part of the oil and…

Wytch Farm Ploughs Ahead

Will Thornton
Celebrated as the largest onshore oilfield in Western Europe (~500 MM bo), the Wytch Farm field in Dorset, southern England, is an iconic field to the thousands of geoscientists and…

Unleashing the True Potential of the Mad Dog Oil Field

Thomas Smith
Technological imaging advances and a phased development in the 15 years since discovery have begun to unlock the full potential of the Mad Dog Field, increasing its known oil-in-place nearly…