What is free water in engineering?
The aqueous phase that separates from a slurry or mixture of fluids. When processing reservoir fluids, the water that separates easily under gravity separation is known as free water.
What is free water in drilling?
1. n. [Geology] Water that is mobile, available to flow, and not bound to surfaces of grains or minerals in rock. 2. n. [Drilling] In cementing, any water in the slurry that is in excess of what is required to fully hydrate the Portland cement and other additives.
How is free water level calculated?
Figure 1 Easy method for determining free-water level (FWLfeet from west line) by projecting RFT pressure data downward from a reservoir to the aquifer. An easy method for determining free water level (FWLfeet from west line) is projecting RFT pressure data downward from a reservoir to the aquifer.
How do you calculate fluid gradient?
Calculating Pressure Gradient:
- Average SG = SG of water x Water Cut + SG of oil x (1-Water Cut)
- Average Gradient = 0.433 x Average SG.
- Fluid Height = Pressure / Gradient.
What is free water in concrete mix?
Free water is defined as water not required for cement hydration. When the cement slurry flow stops, free water separates on the top of the cement column. A cement slurry is basically made up of dry cement mixed with water in a correct ratio.
What is water oil contact?
1. n. [Geology] A bounding surface in a reservoir above which predominantly oil occurs and below which predominantly water occurs.
What is the difference between free water and bound water?
Water that can be extracted easily from foods by squeezing or cutting or pressing is known as free water, whereas water that cannot be extracted easily is termed as bound water.
What is entrapped water?
Entrapped Water (also called immobilized water)? Water that is held in muscle by being entrapped by the structural features of the muscle cell. For example water held in the myofibrils, and water held in the cell itself by the cell membrane (sarcolemma).
Where does the free water level determination occur?
The free water level occurs where buoyancy pressure is zero in the reservoir-aquifer system. It defines the down dip limits of an accumulation. Pressure data reliability affects the resolution; however, resolution improves when it is supplemented with other petrophysical information.
Where is the free water level in a water drive?
Free water level. The free water level is located at the base of a hydrocarbon column and the transition zone. Above this level, the reservoir produces water alone, hydrocarbon and water, or hydrocarbon alone on a production test. Below this level lies the aquifer of a water drive reservoir system. It produces water only.
How tall is the free water level in Florida?
Answer (tied back to steps above): Therefore, the free water level is at 8167 ft2,489.302 m .
Which is the correct definition of water level?
water level – the level of the surface of a body of water. 2. water level – underground surface below which the ground is wholly saturated with water; “spring rains had raised the water table”.