East Baghdad Super-Giant Field Under a Populated Area
The super-giant East Baghdad oil field lies in the heavily populated outskirts of Baghdad. Can it be successfully and safely exploited? Prior to 1956, the eastern part of the Baghdad…
Production
An Electrical Rock Physics Framework For CSEM Interpretation
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
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
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!
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
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
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
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
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
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
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
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…