Residual Oil Saturation Calculation? The 61 Detailed Answer

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Oil Saturation/ Residual oil saturation

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What is residual saturation?

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In petroleum engineering applications, the residual saturation – the fraction of the pore space occupied by a trapped phase – is important, since this determines how much oil cannot be recovered during waterflooding to recover oil.

What is residual oil saturation?

Residual oil saturation (Srow) is the final value of oil saturation from laboratory waterflood displacement experiments and depends primarily on the flow rate (or differential pressure) applied, permeability and capillary end effects, test methodology and (in many cases) the test laboratory.

What is water saturation means?

Water saturation is the ratio of water volume to pore volume. Water bound to the shale is not included, so shale corrections must be performed if shale is present. We calculate water saturation from the effective porosity and the resistivity log. Hydrocarbon saturation is 1 (one) minus the water saturation.

What is saturation in oil and gas?

Saturation is defined as that fraction, or percent, of the pore volume occupied by a particular fluid (oil, gas, or water). This property is expressed mathematically by the following relationship: All saturations are based on pore volume not gross volume of the reservoir.

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What is residual oil content?

The residual oil content sensor OIL check measures the vaporous residual oil content in the compressed air. By means of a sample taking a representative part volume flow is taken from the compressed air and led to the OIL check.

How do you calculate hydrocarbon saturation?

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Determination of saturation. The fraction of pore space containing water is termed water saturation (Sw). The remaining fraction containing oil or gas is termed hydrocarbon saturation (Sh) which equals (1 − Sw).

What is hydrocarbon saturation?

Saturated hydrocarbons are hydrocarbons that contain only single bonds between carbon atoms. They are the simplest class of hydrocarbons. They are called saturated because each carbon atom is bonded to as many hydrogen atoms as possible. In other words, the carbon atoms are saturated with hydrogen.

How do you calculate oil saturation?

Fluid saturation is expressed in terms of volume of fluid divided by total pore space.
  1. Gas saturation (Sg) = Vg ÷ Vp.
  2. Oil saturation (So) = Vo ÷ Vp.
  3. Water saturation (Sw) = Vw ÷ Vp.
  4. Sg + So + Sw = 1.
  5. References.

How do you calculate hydrocarbon pore volume?

Pore Volume = Net Volume x Porosity. Hydrocarbon Volume = Pore Volume x (1 Water Saturation)

How do you calculate saturation in water?

Water saturation (Sw) can be calculated from the Archie Equation since Φ is a linear function of ρb (FDC), ∆t (Sonic), or ΦN (SNP / CNL), then plotted against 1/√Rt will be able to display curves for various water saturations.

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What is residual oil in reservoir?

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Residual oil saturation (Srow) is the final value of oil saturation from laboratory waterflood displacement experiments and depends primarily on the flow rate (or differential pressure) applied, permeability and capillary end effects, test methodology and (in many cases) the test laboratory.

What is the meaning of residual oil?

Residual oil is oil found in low concentrations naturally or in exhausted oil fields. Often mixed with water, it cannot be recovered by conventional techniques.

What is residual oil used for?

The primary end use for residual fuel oil is as a fuel in simple furnaces such as power plants and industrial boilers. It is also the primary fuel used on ocean-going ships, where it is called bunker fuel.

What is the meaning of residual oil saturation?

Residual oil saturation (Srow) is the final value of oil saturation from laboratory waterflood displacement experiments and depends primarily on the flow rate (or differential pressure) applied, permeability and capillary end effects, test methodology and (in many cases) the test laboratory.

How do you calculate residual oil?

To define residual oil saturation, the displacement method and the type, volume, direction and velocity of the displacing fluid must be known. Residual oil saturation is the ratio of the immobile residual oil volume divided by the effective porosity.

How do you calculate residual oil saturation?

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To define residual oil saturation, the displacement method and the type, volume, direction and velocity of the displacing fluid must be known. Residual oil saturation is the ratio of the immobile residual oil volume divided by the effective porosity.

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How do you calculate oil saturation?

Fluid saturation is expressed in terms of volume of fluid divided by total pore space.
  1. Gas saturation (Sg) = Vg ÷ Vp.
  2. Oil saturation (So) = Vo ÷ Vp.
  3. Water saturation (Sw) = Vw ÷ Vp.
  4. Sg + So + Sw = 1.
  5. References.

What does residual oil saturation mean?

Residual oil saturation (Srow) is the final value of oil saturation from laboratory waterflood displacement experiments and depends primarily on the flow rate (or differential pressure) applied, permeability and capillary end effects, test methodology and (in many cases) the test laboratory.

What is residual oil content?

The residual oil content sensor OIL check measures the vaporous residual oil content in the compressed air. By means of a sample taking a representative part volume flow is taken from the compressed air and led to the OIL check.

How do you calculate hydrocarbon saturation?

Determination of saturation. The fraction of pore space containing water is termed water saturation (Sw). The remaining fraction containing oil or gas is termed hydrocarbon saturation (Sh) which equals (1 − Sw).

References:

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