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Reservoir Dynamics

Reservoir Dynamics Ltd conducts research and provides consultancy services on the topics of geomechanics, faults and fractures and their influence on fluid flow in oil and gas reservoirs.

Conventionally, a dynamic model of a reservoir refers to the simulation of fluid flow within a static framework of rock (apart from a pore volume compressibility that is usually assumed to be homogeneous, isotropic and unchanging). In contrast, plentiful field evidence from worldwide reservoirs indicates that it is not only the fluid that moves during reservoir operations: the rock is also dynamic with small strains which are heterogeneous, anisotropic and focussed on faults, fractures and other discontinuities; this leads to time-varying properties, including permeability. This influence has been seen in production data whether or not the reservoir was characterised as "naturally fractured". Recognition of the involvement of additional physics in reservoir behaviour can lead to benefit for practical issues of well placements, injectivities, productivities, sweep efficiencies, short-term and longer-term forecasting and reservoir simulator history-matching. The technology is well-suited to mature fields, but lessons can be applied to green fields.

http://www.reservoir-dynamics.co.uk/

Kes Heffer -
Kes Heffer received an MA in Natural Sciences from the University of Cambridge in 1970 and an MSc in Petroleum Reservoir Engineering from Imperial College, London in 1971. He worked for BP for 29 years, initially in worldwide operations as a petroleum/reservoir engineer, and latterly in research into issues of reservoir description. Since 1999 he has been an Honorary Fellow of the Institute of P
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Understanding fractured reservoirs and rocks

Tuesday, January 23, 2018

The fact that fractures are common in the subsurface have been known for at least the last century but the practice of treating reservoirs as fractured rock masses has been extremely slow in becoming a standard industry practice, despite that fact that fields with such reservoirs are known from SE Asia, the carbonates of the Middle East and much more recently, the basement West of the Shetlands.