formation water

formation water

[fȯr′mā·shən ‚wȯd·ər]
(hydrology)
Water present with petroleum or gas in reservoirs. Also known as oil-reservoir water.
References in periodicals archive ?
Only the coalbed is perforated, and the formation water in the coalbed flows into the wellbore in the form of horizontal radial flow; 4).
The greater the concentration of formation water in the rock is, the smaller the resistance between the inlet and outlet faces of the rock will be [13-15].
gas and oil) have very high resistivities while formation water and shales have low resistivities.
Their topics include petroleum reservoir fluids, pressure-volume-temperature (PVT) experiments, equations of state, flash and phase envelope calculations, physical properties, regression to experimental PVT data, transport properties, wax formation, asphaltenes, gas hydrates, compositional variations with depth, minimum miscibility pressure, formation water and hydrate inhibitors, and scale precipitation.
The analyses are made to calculate porosity determine formation water resistivity water saturation and oil saturation.
Another study has demonstrated the possibility that formation water can migrate into freshwater aquifers through naturally occurring pathways.
96 MMscf) per day without production of formation water.
The company said the two lower zones in the well produced only formation water.
Among those topics are physico-mechanical properties of sintered iron-silica sand nanoparticle composites, synthesizing and characterizing novel nano ceramic magnesium ferrite material doped with samarium and dysprosium for designing a microstrip patch antenna, and injecting carbon dioxide and pumping out saline formation water simultaneously to control pressure build-up while storing carbon in deep saline aquifers.
Evaluation of the formation water tendency can be achieved by analyzing the amplitude spectrum of the response signal.
The Resistivity of the invasion zone (Ri), the flushed zone (Rx0), uninvaded zone or true resistivity of the Formation (Rt) is evaluated with the help of resistivity of the formation water at formation temperature (RW), water saturation (SW) and moveable hydrocarbon index (SW/SXO).
1 exploration well has been replaced with water, thought to be formation water.

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