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

Total Production

System

Completion

Choke

Safety Valve

Tubing

Flowline

Pump

Compressor

Separator

Export

lines

Rise

r

Reservoir

gas

oil

Outflow

Inflow

PR

PR

Psep

Psep Pwf

Pwf

Flow rate

Nodal Analysis

DP3 = PUSV PDSV

DP1 = PR Pwfs DP2 = Pwfs

Pwf

DP5 = Ptf PDSC

DP6 = PDSC PRB

DP8 = Psep PCD

DP10 = PCD PGD

DP11 = PPD PLD DP4 = Pwf

Ptf

DP7 = PRB Psep DP9 = Psep

PPD

Pressure Loss in

System

Tulsa University Fluid Flow

Projects

Leader in Multiphase Flow research for over 30 years

Schlumberger rejoined August 2002

Have recently developed Unified Mechanistic Model valid for all angles of inclination will appear in PIPESIM 2003

3 phase mechanistic model in development

Single Branch Operations

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

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

Flow correlation matching

Ansari

Measured

Hagedorn

Brown

Beggs Brill

Orkezewsk

i

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)

Pressure/temperature profile

Single Simulation

Run

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

System Analysis Variables Permuted

4 tubing

3.5 tubing

3 tubing

Each point represents separate

simulation

System Analysis Variables Change in Step

4 tubing

3.5 tubing

3 tubing

Each point represents separate

simulation

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 classical inflow/outflow curves

Nodal Analysis

Skin = 2

Skin = 0

Skin = -2

Tubing ID =

3 Tubing ID = 3

1/2

Tubing ID =

4

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

Reservoir tables

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

Artificial lift performance

Psep = 75

psig 125 psig

150 psig

175 psig

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

Optimum Horizontal Well Length

Specify: - reservoir pressure - outlet pressure - completion length