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1. The Separator

The gas line :- To increase or decrease the orifice (run the orifice) you need to do the following
1/ open the equalizer and open the gate then adjust from the carrier to make it in the upper chamber or down chamber finally open the upper chamber valve then close all previous valves inverse gate valve and equalizer. Gas line can go to the production line and go for burner line by a diverter in the gas line in the Separator
The oil line:- I can adjust the level from the lcv box to make the level stable and control form the pcv only
The Separator can be three phases (water, oil and water) or two phases (liquid and gas)


1. How to convert from Fahrenheit to Celsius and from Fahrenheit to rankine?

Temperature in Rankine= Temperature in Fahernheit+460
Temperature in Fahrenheit= 32+ (1.8*Temperature in Celsius)


2. What is critical flow?

  • Critical flow for oil is when the downstream pressure is 60% of the upstream pressure.
  • while for gas it is that the downstream pressure is 50% of the upstream pressure.

  • 2.How does the temperature and gas specific gravity affect gas rate?

    The relation between temperature and gas rate is inversely proportional.
    Also the relation between gas specific gravity and gas rate is inversely proportional.


    3. What is the relation between gas specific gravity and h2s content?

    As the h2s percentage increases the specific gravity increase.


    4. What are the flow meter ranges?

    • For 2 inch 170-1700 bbl/day
    • For 3 inch 1300-13000 bbly/day


    5. What are the limits of H2s?

    Lower explosive limit (L.E.L)= 4.3% and Higher explosive limit (H.E.L)= 46%


    6. the variables we use in equations

    Full Discription Abbriviation unit
    dimensionless pressure pD psi
    dimensionless time pD psi
    dimensionless distance pD psi
    dimensionless rate pD psi
    permeability k md
    thickness h feet
    initial reservoir pressure pi psi
    well flowing pressure pwf psi
    initial reservoir pressure pi psi
    production rate q STB/d
    formation volume factor B res vol/ std vol
    viscosity u cp
    Time t hours
    total system compressibility ct /psi
    wellbore radius rw ft
    porosity pore volume/bulk volume
    ... A ...
    ... S ...


    7. what is the meaning of "dimensionless" in well test?

    In the context of well testing and reservoir engineering, the term "dimensionless" refers to a quantity that does not have units. It is a dimensionless parameter because it represents a ratio, a fraction, or a correlation that is independent of specific units of measurement. This is often done to express relationships that are independent of scale, making them applicable across different systems.

    Several important parameters in well testing are dimensionless, and they play a crucial role in understanding and analyzing reservoir behavior. Here are a few examples:

    1. Dimensionless Pressure:
    2. The pressure used in well testing is often normalized by the initial reservoir pressure. This dimensionless pressure, often denoted as P/Pi provides a non-dimensional representation of pressure changes in the reservoir.

    3. Dimensionless Time:
    4. Time in well testing is often made dimensionless by dividing it by a characteristic time, such as the drainage time or the time at which the well reaches a certain fraction of its ultimate recovery.

    5. Dimensionless Distance:
    6. Similar to time, distance can be made dimensionless by dividing it by a characteristic length, often the effective drainage radius of the well.

    7. Dimensionless Rate:
    8. Production rates are often made dimensionless by dividing them by a characteristic flow rate, such as the initial flow rate.

    These dimensionless parameters are crucial for creating type curves and normalized plots that are applicable across different reservoirs and wells. They help in identifying common behavior patterns and trends that can be used for reservoir characterization and performance prediction.
    When you see the term "dimensionless" in well testing, it is an indication that the parameter being discussed has been normalized to eliminate the influence of specific units of measurement, allowing for more general and widely applicable analysis.


    3. How to take gas SG ?

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    3. How to run ranarwx device

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    3. what is shrinkage and how to calculate it?

    we The shrinkage tester is usually attached to the oil sight glass or the oil line of the well test separator to determine the shrinkage factor in the field. The oil shrinkage factor is a correction factor applied to the oil volumetric rate to convert the flow rate from line conditions to stock tank conditions


    3. .....................

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    Chapter Test