Abnormal pressure behavior:mechanisms and prediction

Agus M. Ramdhan, PhD

13 4 1960

IKATANAH

LIGEOLOGI IN

DONESIA

Course objectives

1. Understanding the concept of subsurface pressure and stress

2. Apply ‘suitable’ method to estimate overpressure

3. Apply overpressure concept to operation (drilling) and exploration activities

Course agenda

• Day 1: Introduction and familiarization to subsurface pressure and stress

• Day 2: Overpressure generating mechanism

• Day 3: Overpressure estimation method

Course agenda

• Day 4: Application of overpressure– Pre-drill overpressure estimation– Geological application

• Day 5 (half day): Case study of overpressure in some Indonesia’s sedimentary basins and worldwide

Key references

1. AAPG Memoir 70: Abnormal Pressures in Hydrocarbon Environment (1998)

2. AAPG Memoir 76: Pressure Regimes in Sedimentary Basins and Their Prediction (2002)

3. AAPG Memoir 61: Basin Compartment and Seal

Key references

4. Mouchet, J.P., and Michell, A., 1989. Abnormal Pressures While Drilling.

5. Developments in Petroleum Science 38 (Elsevier): Studies in Abnormal Pressures (1994)

6. Development in Petroleum Science 50 (Elsevier): Origin and Prediction of Abnormal Formation Pressures (2002).

7. Scientific publications:– AAPG Bulletin, SPE, Marine and Petroleum Geology,

Petroleum Geoscience, First Break, The Leading Edge, etc.

About the instructor

Agus M. Ramdhan, PhD

- S1 & S2: Geology, ITB- PhD: Geology, Durham Univ., UK- Member of multi-sponsor overpressure

research at Durham University, UK- Member of multi-sponsor overpressure

research at ITB, Indonesia

Key publications1. Ramdhan, A.M., and N.R. Goulty, 2010, Overpressure

generating mechanisms in the Peciko Field, Lower Kutai Basin, Indonesia: Petroleum Geoscience, v. 16, p. 367-376.

2. Ramdhan, A.M., and N.R. Goulty, 2011, Overpressure and shale compaction in the Lower Kutai Basin, Indonesia – a radical reappraisal, AAPG Bulletin, in press.

3. Goulty, N.R, and A.M. Ramdhan, 2011, Limitations on disequilibrium compaction as a mechanism of overpressure generation, 73rd EAGE Conference and Exhibition incorporating SPE EUROPEC 2010, Vienna, Austria, 23 – 26 May 2010.

Key publications4. Cicchino, A.M.P., N.R. Goulty, and A.M. Ramdhan, 2011,

Compaction trends in Mesozoic mudrocks at Haltenbanken and their relationship to overpressure, Devex Conference at Aberdeen.

5. Ramdhan, A.M., N.R. Goulty, and L.M. Hutasoit, 2011, The challenge of pore pressure prediction in Indonesia’s warm Neogeone Basin, Proc. Of 35th Annual Convention and Exhibition, Indonesian Petroleum Association.

6. Ramdhan, A.M., N.R. Goulty, and L.M. Hutasoit, 2011, Outstanding questions about overpressure and compaction in the Lower Kutai Basin, AAPG Overpressure Workshop at Galveston, Texas, accepted.

Key publications7. Ramdhan, A.M and N.R. Goulty, 2010, Overpressure and

compaction in the Peciko Field, Kutai Basin, 72nd EAGE Conference and Exhibition incorporating SPE EUROPEC 2010, Barcelona, Spain, 14 – 17 June 2010.

8. Ramdhan, A.M and N.R. Goulty, 2010, Overpressure in the Kutai Basin – a radical reappraisal, 72nd EAGE Conference and Exhibition incorporating SPE EUROPEC 2010, Barcelona, Spain, 14 – 17 June 2010.

9. Ramdhan, A.M., N.R. Goulty, R.E. Swarbrick, , and G. Smagghe, 2007, Hydrodynamics of the Kutai Basin, Indonesia: control, timing, and impact on the petroleum system, Overpressure Meeting 2007, Durham, UK