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Title11 well testing facile doc.pdf
TagsPermeability (Earth Sciences) Petroleum Reservoir Fluid Dynamics Liquids
File Size1.4 MB
Total Pages54
Document Text Contents
Page 2

UTC

Module PKR09

Well testing is the technique and method

for the evaluation of well conditions and reservoir

characteristics.



It involves producing a well at a constant rate or

series of rates, some of which may be zero (well

closed in), while simultaneously taking a continuous

recording of the changing pressure in the well bore

using some form of pressure recording device.

WHAT IS WELL TEST

Page 27

DARCY’S LAW AND ITS APPLICATION

THE UNIT OF PERMEABILITY IS DARCY.
A ROCK OF 1DARCY PERMEABILITY IS ONE IN
WHICH A FLUID OF 1 CP VISCOSITY MOVE AT A
VELOCITY OF 1CM/SEC UNDER A PRESSURE
GRADIENT OF 1ATMOSPHERE/CM.

Page 28

DARCY’S LAW AND ITS APPLICATION

THE UNIT OF PERMEABILITY IS DARCY.
A ROCK OF 1DARCY PERMEABILITY IS ONE IN
WHICH A FLUID OF 1 CP VISCOSITY MOVE AT A
VELOCITY OF 1CM/SEC UNDER A PRESSURE
GRADIENT OF 1ATMOSPHERE/CM.

Page 53

Step 5: Re-compute parameters using Type Curves

• Type Curves

– Generalized solutions to diffusivity equation

– Graphical form

– Depends on reservoir models and flow regimes

– Most common
• Homogeneous reservoir with wellbore storage

– Type Curve Matching
• Diagnostic Plot is matched with a Type Curve

• Calculate parameters from given equations

Page 54

Type Curve for a Homogeneous Reservoir

• Wellbore Storage Effect

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