session 2- johan eck-olsen (definition of mpd and ubd)
TRANSCRIPT
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7/30/2019 Session 2- Johan Eck-Olsen (Definition of MPD and UBD)
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Managed Pressure DrillingWhat It Is and What It Is Not
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Presentation prepared by: Ken Malloy
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George Medley Helio Santos
Don Hannegan
ames ay
Oliver Coker John McCaskill
Johan Eck-Olsen
Don Reitsma
Paul Sonnemann
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difficult to carry out, normore ou u o success,
nor more dangerous tohandle, than to initiate anew order of thin s.
cco ac ave
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Had Overbalanced drillin and Underbalanced
drilling technologies Needed near balance drilling technology
Managed Pressure Drilling named and given its
own identity around 2003 v
Operations
Use some of the techniques learned from
Underbalanced Operations Improve Conventional Drilling operations using the
tools and techni ues
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Operations, Managed Pressure Drilling,
Same
Interchangeable Terms
u u Umbrella Term
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equipment and controls where theressure exerted in the wellbore is
intentionally less than the pore
pressure in any part of the exposedorma ons w e n en on obringing formation fluids to the surface.
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An adaptive drilling process used to precisely control theannular ressure rofile throu hout the wellbore. The
objectives are to ascertain the downhole pressureenvironment limits and to manage the annular hydraulicpressure profile accordingly.
Technical Notes: MPD process employs a collection of tools and techniques which may
m ga e e r s s an cos s assoc a e w r ng we s a ave narrowdownhole environmental limits, by proactively managing the annularhydraulic pressure profile.
MPD may include control of back pressure, fluid density, fluid rheology,
, , ,thereof. MPD may allow faster corrective action to deal with observed pressure
variations. The ability to dynamically control annular pressures facilitates.
MPD techniques may be used to avoid formation influx. Any flow incidental
to the operation will be safely contained using an appropriate process.
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An adaptive drilling process used to precisely control theannular ressure rofile throu hout the wellbore. Theobjectives are to ascertain the downhole pressureenvironment limits and to manage the annular hydraulicpressure profile accordingly.
Technical Notes: MPD process employs a collection of tools and techniques which may
m ga e e r s s an cos s assoc a e w r ng we s a ave narrowdownhole environmental limits, by proactively managing the annularhydraulic pressure profile.
MPD may include control of back pressure, fluid density, fluid rheology,
, , ,thereof. MPD may allow faster corrective action to deal with observed pressure
variations. The ability to dynamically control annular pressures facilitates.
MPD techniques may be used to avoid formation influx. Any flow incidental
to the operation will be safely contained using an appropriate process.
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7/30/2019 Session 2- Johan Eck-Olsen (Definition of MPD and UBD)
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An adaptive drilling process used to precisely control theannular ressure rofile throu hout the wellbore. Theobjectives are to ascertain the downhole pressureenvironment limits and to manage the annular hydraulicpressure profile accordingly.
Technical Notes: MPD process employs a collection of tools and techniques which may
m ga e e r s s an cos s assoc a e w r ng we s a ave narrowdownhole environmental limits, by proactively managing the annularhydraulic pressure profile.
MPD may include control of back pressure, fluid density, fluid rheology,
, , ,thereof. MPD may allow faster corrective action to deal with observed pressure
variations. The ability to dynamically control annular pressures facilitates.
MPD techniques may be used to avoid formation influx. Any flow incidental
to the operation will be safely contained using an appropriate process.
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An adaptive drilling process used to precisely control theannular pressure profile throughout the wellbore. Theo ec ves are o ascer a n e own o e pressure
environment limits and to manage the annular hydraulicpressure profile accordingly. The intention of MPD is to avoid
.incidental to the operation will be safely contained using an
appropriate process. MPD process employs a collection of tools and techniques which may
mitigate the risks and costs associated with drilling wells that have narrowdownhole environmental limits, by proactively managing the annularh draulic ressure rofile.
MPD may include control of back pressure, fluid density, fluid rheology,annular fluid level, circulating friction, and hole geometry, or combinationsthereof.
variations. The ability to dynamically control annular pressures facilitatesdrilling of what might otherwise be economically unattainable prospects.
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Underbalanced Drilling Managed Pressure Drilling
A drilling activity employing
appropriate equipment andcontrols where the pressureexerted in the wellbore is
An adaptive drilling process
used to precisely control theannular pressure profilethroughout the wellbore. The
pressure in any part of theexposed formations with the
intention of bringing formationfluids to the surface.
downhole pressureenvironment limits and to
manage the annular hydraulicressure rofile accordin l .The intention of MPD is toavoid continuous influx offormation fluids to thesurface. Any influx incidental
safely contained using anappropriate process.
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Borehole Stability Pore Pressure
MPD concerns
Borehole Stability
Pore Pressure
Frac Gradient
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Underbalanced Drillin Mana ed Pressure Drillin
Intent is to continuouslymanage an influx
Improves drilling
Intent is not to continuouslymanage an influx
Mitigate Drilling Problemsperformance by invitinginflux rather than
increasing mud weight to
Lost Circulation
Stuck Pipe
Wellbore Stability.
Prevent reservoir damage
Reservoir characterization
e ontro
Pressure Profile Driven
Drilling Window -
Between BHS-FG
Equivalent Mud Weight Influx Discouraged
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