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PESA QLD Short Course – Fundamentals of Pore Pressure Prediction & Petroleum Geomechanics, 29-30th March

Wednesday, March 29 @ 09:00 - Thursday, March 30 @ 17:00

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Guest Speaker: Dr Mark Tingay

Dr Tingay has over 16 years experience in overpressure analysis, pore pressure prediction and petroleum geomechanics. He graduated with a PhD from the University of Adelaide in 2003 and has since had various roles in academia and Chevron, and is currently an independent consultant. He has conducted over 25 industry-based research and consulting projects on a range of petroleum geomechanics and overpressure issues. Dr Tingay has worked world-wide, but with a primary focus on the Asia-Pacific region, including leading the latest release of the Australian Stress Map, compilation of the first present-day stress map for SE Asia, and overpressure analysis and development of new pore pressure prediction methods in five basins. Dr Tingay’s research track record includes publication of over 65 peer-reviewed papers, giving over 100 presentations to conferences, professional society meetings and companies, and providing over 80 media interviews. He has received over a dozen awards for reseach and scientific communication, including the AAPG JC Cam Sproule Award, EAGE Lousi Cagniard Award, ASEG Early Achievement Award, a prestigious ‘Young Tall Poppy Science Award’ and was runner-up for South Australian Young Scientist of the Year.
Dr Tingay has extensive experience and training in teaching, having given 18 industry courses for companies and professional societies. Furthermore, Dr Tingay has a broad teaching background that includes drilling engineering, petrophysics, wireline logging, structural geology, geophysics, geodynamics, sedimentology, stratigraphy and petroleum geology. Dr Tingay holds a Graduate Certificate in Education (Higher Education) in adult education practices.

PESA QLD Short Course: Fundamentals of Pore Pressure Prediction and Petroleum Geomechanics (2 days)

Date:      Wednesday 29th March & Thursday 30th March 2017

Venue :    Royal On the Park Hotel, 152 Alice St, Brisbane QLD 4001

$895 – Members

$1000 – Non-Members

$450 – Student / Concession* Members

Members need to sign into the website to book with member rates.

*Concession status to be agreed by the PESA QLD President. Those who are unemployed are encouraged to request concession pricing (email qld-president@pesa.com.au)


The safe drilling of wells requires detailed pre-drill prediction of pore pressures, fracture gradients and potential wellbore instability. Accurate pore pressure and fracture gradient prediction is vital for several aspects of well planning, such as casing and cementing design, as well as the prevention of potentially disastrous kicks, losses and blowouts. Furthermore, wellbore instability and associated events, such as pack-offs and stuck pipe, are regarded as the largest cause of non-productive time in deep-water drilling operations. Thus, wellbore stability, pore pressure and fracture gradient analysis represents a key part in reducing drilling costs and optimizing drilling, both in the planning and operational stages of drilling a well. Finally, knowledge of petroleum geomechanics is particularly important in enhancing production in naturally fractured reservoirs and coals, as well as for hydraulic fracture stimulation, and thus is highly valuable in unconventional reservoirs. Knowledge of petroleum geomechanics and pore pressure prediction techniques is particularly important in Australia and SE Asia, which is often characterized by complicated geology, variable and often high-magnitude stress states and anomalous overpressures.

Course Outline

Day 1: Fundamentals of Overpressure and Pore Pressure Prediction

Introduction to pore pressure

  • Definitions of pore pressure and overpressure.
  • Where overpressure is found.
  • Geological expressions of overpressure.
  • General importance of overpressure and pore pressure prediction.

Measuring pore pressure

  • Wireline logging measurements.
  • Drilling based measurements.
  • The ‘sand/shale’ dilemma in overpressure analysis.

Overpressure Generation Mechanisms

  • Effective stress mechanisms (disequilibrium compaction, tectonic loading).
  • Fluid expansion mechanisms (e.g. kerogen to gas maturation, clay diagenesis).
  • Determining overpressure generation mechanisms
  • Worked examples from Thailand and Brunei

Introduction to Pore Pressure Prediction

  • Basic prediction concepts.
  • Common pore pressure prediction methods (e.g. Eaton, Bowers, Equivalent Depth).
  • Log-based pore pressure prediction examples
  • Review of seismic velocities for pre-drill prediction
  • Drilling-based PPP (D-exponent, gases, cuttings analysis, kick detection)
  • Integrating and updating pre-drill and real-time predictions.
  • Importance of post-drilling reflection and review.

Day 2: Fundamentals of Petroleum Geomechanics

Basics of Stress, Strain and Rock Mechanics

  • Introduction to rock mechanics and petroleum geomechanics.
  • Stress, strain and resolving stresses in the Earth.
  • Brittle failure and basic fault mechanics.

Stress Around Wellbores

  • Stress around vertical wellbores.
  • Breakouts, drilling-induced fractures and wellbore instability
  • Stress patterns in the Earth from plate to reservoir scale.

Vertical Stress and Fracture Gradient

  • Overview and importance of overburden and fracture gradient.
  • Overburden gradient calculation.
  • Measurements of minimum stress and fracture gradient from drilling tests.
  • Fracture gradient prediction by the effective stress ratio.
  • Poroelastic fracture gradient prediction from wireline log data.

Wellbore stability and other Petroleum Geomechanics Applications

  • Overview of wellbore stability analysis.
  • Basics of estimating the maximum horizontal stress magnitude.
  • Stress around deviated wellbores.
  • Calculation of collapse pressures.
  • Summary of geomechanical applications for fractured reservoir production, fault seal breach and hydraulic fracture stimulation.

 

Details

Start:
Wednesday, March 29 @ 09:00
End:
Thursday, March 30 @ 17:00
DOWNLOAD FLYER

Venue

Royal on the Park
Corner Alice and Albert Streets, Brisbane QLD, 4000
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Organizer

PESA QLD Branch
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