Pipesim Theory

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    1984 - PIPESIM developed on Unix Platform

    1985 - PIPESIM ported to DOS & Baker Jardine formed

    1990 - PIPESIM GOAL (Gas Lift Optimization & Allocation)

    Developed

    1993 Windows GUI added to PIPESIM

    1994 PIPESIM Net Launched

    1996 PIPESIM FPT Launched

    1997 PIPESIM FPT linked to ECLIPSE

    2000 PIPESIM 2000 developed (New 32-bit GUI) 2001 Baker Jardine Acquired by Schlumberger

    2003 Q1 Release of PIPESIM 2003

    A Brief History of PIPESIM

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    Total Production

    System

    Completion

    Choke

    Safety Valve

    Tubing

    Flowline

    Pump

    Compressor

    Separator

    Export

    lines

    Rise

    r

    Reservoir

    gas

    oil

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    Outflow

    Inflow

    PR

    PR

    Psep

    PsepPwf

    Pwf

    Flow rate

    Nodal Analysis

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    DP3 = PUSV

    PDSV

    DP1 = PR

    PwfsDP2 = Pwfs

    DP5 = Ptf

    PDSC

    DP6 = PDSC

    PRB

    DP8 = Psep

    PCD

    DP10 = PCDPGD

    DP11 = PPD

    PLDDP4 = Pwf

    Ptf

    DP7 = PRB

    Psep DP9 = Psep

    PPD

    Pressure Loss in

    System

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    Tulsa University Fluid Flow

    Projects

    Leader in Multiphase Flowresearch for over 30 years

    Schlumberger rejoinedAugust 2002

    Have recently developedUnified Mechanistic Modelvalid for all angles ofinclination will appear inPIPESIM 2003

    3 phase mechanistic modelin development

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    Single Branch Operations

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    Single branch operations

    System Analysis

    Pressure/Temperature Profile

    Flow Correlation Matching

    Nodal Analysis Optimum Horizontal Well Length

    Reservoir Tables

    Gas Lift Rate v Casing Head Pressure

    Artificial Lift Performance

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    Flow correlation matching

    To determine the most suitable flow correlation

    Select the required flow correlations

    Enter known pressure and temperature at

    different measured depths (MD) Enter known boundary conditions

    Results show each correlation and the entered

    data

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    Flow correlation matching

    Ansari

    Measured

    Hagedorn

    Brown

    Beggs Brill

    Orkezewsk

    i

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    Pressure/temperature profile

    Compute the pressure and temperature profile for

    a system and also vary some other parameters

    within system

    Enter sensitivity variable Enter boundary conditions

    Resulting PSPLOT shows pressure or

    temperature against depth (well) or elevation

    (flowline)

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    Pressure/temperature profile

    Single Simulation

    Run

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    System analysis

    Set up model to compute

    Outlet Pressure with given Flowrate

    Inlet Pressure with given Flowrate

    Deliverability with given any other system variable

    In addition, also sensitivity test on

    One variable

    Several variables that change together

    Several variables permuted against one another

    Combination of above

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    System Analysis Variables Permuted

    4 tubing

    3.5

    tubing3 tubing

    Each point represents separate

    simulation

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    System Analysis Variables Change in

    Step

    4 tubing

    3.5

    tubing3 tubing

    Each point represents separate

    simulation

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    Nodal analysis

    Classical nodal analysis at any point

    Break the system into two and compute the inflow

    and outflow around that point

    Resulting PSPLOT shows the classicalinflow/outflow curves

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    Nodal Analysis

    Skin = 2

    Skin = 0

    Skin = -2

    Tubing ID =

    3Tubing ID = 3

    1/2

    Tubing ID =4

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    Reservoir tables

    Produce a table of bottom-hole pressure that

    can be utilised by reservoir simulator

    Interface to common reservoir simulators such

    as:

    ECLIPSE VIP

    PORES

    COMP4

    MoRes

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    Reservoir tables

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    Artificial lift performance

    Allows artificial lift performance curves (gas or

    ESP) to be generated and also varies some other

    parameters within system

    To produce input performance curves for GOAL

    Resulting plot is gas lift quantity (or ESP power)

    versus oil production rate

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    Artificial lift performance

    Psep = 75

    psig125 psig

    150 psig

    175 psig

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    Horizontal well performance

    A horizontal well with multiple sources along the

    wellbore which encounters reservoir drawdown

    and wellbore pressure drop

    Accurately predicts hydraulic wellbore

    performance in the completion

    Productivity investigation via Optimum horizontal

    completion length option

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    Optimum Horizontal Well Length

    Specify:

    - reservoir pressure

    - outlet pressure

    - completion length