Effective Use of High Density VSP Measurements to Predict Pore Pressure and Estimate Mud Weight Ahead of Drilling in the Mahakam Delta, Indonesia

Mohammed Badri, Stephane Gazet, Gregoire de Tonnac

Indonesian Petroleum Association

... occurs when pore pressure exceeds normal hydrostatic pressure and is related to certain environment conditions in the subsurface. It is the result...

Utilization of Pressure Data Recorded While Perforating

Ronny Maas, Andon Suwito, Cholid Mas

Indonesian Petroleum Association

... the pressure exerted by the hydrostatic column of completion fluid. At this stage, completion fluid can be added or subtracted until the desired underbalance...

Post-drill Analysis of Pore Pressure and Fracture Gradient from well logs and Drilling Events … An Integrated Case Study of a High Pressure Exploratory Well from Panna East, Mumbai Offshore Basin, India, #42289 (2018).

Souvik Sen, Ashani Kundan, Mithilesh Kumar,

Search and Discovery.com

...-Eocene Bassein Formation (2121-2657m) and the top of Panna Shale. Downhole pressure measurements (MDT) show sub-hydrostatic pressure condition against...

A geological pressure model for the Browse Basin and the southern Vulcan Sub-Basin, NWS Australia

Jakob Heller, Toh Shi-Yuan, Alex Edwards

Petroleum Exploration Society of Australia (PESA)

... of overpressure magnitudes (from normal pressure to highly overpressured) in strata of similar age and/or depth of burial. The uncertainty...

Gulf of Mexico Subsalt Deformation Zones: Weak Formation Integrity Rather than Anomalous High Pressure Zones

James C. Niemann

GCAGS Transactions

... shales using porosity indicators such as resistivity and interval transit time log curves. Under hydrostatic pressure conditions, resistivity...

Control of Annular Gas Flow and Application in Indonesia

A. De Almeida, W. Hernowo

Indonesian Petroleum Association

..., trapping water that still is undergoing hydration; even when a dispersed slurry can no longer transmit any hydrostatic pressure. Cement now undergoes...

Poroelastic Prediction of Matrix Compressibility and Pressure Dependent Permeability: Impact on Simulated Recovery Factors in Permian Basin Resource Rocks, USA

Brian Crawford, Michael Cronin, Olabode Ijasan, Mathilde Luycx, Darren McLendon, Shreerang Chhatre

Unconventional Resources Technology Conference (URTEC)

... Pressure Buildup (a) (c) (b) (d) Figure 6. Variation of storage (UPVC) and transport (PDP) stress-sensitivity with PMF(8): (a) hydrostatic bulk...

Experimental Deformation of Sedimentary Rocks Under Confining Pressure: Pore Pressure Tests

John Handin , Rex V. Hager, Jr. , Melvin Friedman , James N. Feather

AAPG Bulletin

... appropriate at depths to 9 km. (30,000 ft.). 3. Whenever the formation pressure is "normal" (equivalent to the hydrostatic head of a column of water...

Thin-skinned Gravity Sliding as a Mechanism for Growth Faulting: Unit 10: Principles

Martin P. A. Jackson, William E. Galloway

AAPG Special Volumes

... slope with normal fluid pressure, the system is in static equilibrium. The downslope component of the weight of the fluid-filled loose sediment...

Preservation of lateral pressure disequilibrium during the uplift of shale reservoirs

Xinyu Xia, Eric Michael, and Yongli Gao

AAPG Bulletin

... A pressure gradient increase from normal pressure in oil zones to overpressure in dry gas zones indicates a lateral disequilibrium of pore pressure...

A New Approach to Pore Pressure Predictions: Generation, Expulsion and Retention Trio, Case Histories from GOM; #41612 (2015)

Selim Simon Shaker

Search and Discovery.com

... ECD MW (surface) 10000 10000 25000 8000 10000 SIP (shut in pressure) Csg (casing) 14000 15000 Average sand pressure Hydrostatic (GoM) 30000...

Capillary Pressures in Stratigraphic Traps

Robert R. Berg

AAPG Bulletin

... and pressure on the interfacial tension of water against methane-normal decane mixtures: Soc. Petroleum Engineers Jour. Trans., v. 251, p. 171-175...

Pore Pressure Mapping Using Microseismicity and Borehole Data

Leo Eisner, Dmitry Alexandrov, Umair bin Waheed

Unconventional Resources Technology Conference (URTEC)

...a (40.8±0.8 MPa with hydrostatic correction) based on two ISIP values from the pressure-time records. Unfortunately, the pressure records did not provid...

Character of Overpressure in the Deep Tuscaloosa Trend, Louisiana

Philip H. Nelson

GCAGS Transactions

... labeled "hydrostatic gradient, 0.465 psi/ft" intercepts zero depth at atmospheric pressure. Line segments offset to the right of the hydrostatic...

Application of Foam Cement and the Stringent Quality Control Techniques Basic to the Use of This New Oil Field Cementing System

Alex Antonovitch, George Birch, D. Larry Murphy

Indonesian Petroleum Association

... that would not support the hydrostatic pressure of extended cement slurries weighing only 11 ppg. Frequently a full cement column could only be placed...

Pore Pressure Estimation in the Hides Region - Pitfalls and Solutions

N. Yassir, A. Hennig, M. A. Addis, A. Warrington

Papua New Guinea (PNG) Petroleum Convention Proceedings

... in pressure communication with the outcrop, as suggested by the hydrostatic water gradient between them (Fig. 4b). The pressures in the Hides...

Analytical Method to Accurately Estimate Overpressure Magnitude: The Case Study from Indonesia's Tertiary Basins

Agus M. Ramdhan, Lambok M. Hutasoit, Arifin

Indonesian Petroleum Association

... hydrostatic pore pressure from vertical/overburden stress. Pore pressure (thus overpressure) in overpressure section is calculated again by Terzaghi...

Importance of Aquathermal Pressuring Effect in Gulf Coast: GEOLOGIC NOTE

Kinji Magara

AAPG Bulletin

... and pore pressures are near hydrostatic. The normal compaction trend may be approximated by an exponential function (Rubey and Hubbert, 1959...

Abnormal-Subnormal Pressure Relationships in the Morrow Sands of Northwestern Oklahoma

Arthur F. Breeze

Oklahoma City Geological Society

.... Recent studies of abnormal pressure on the Gulf Coast have reported pressures as high as 1.87 normal hydrostatic pressure, equivalent to 0.87 pounds per...

Hydrodynamic Pools at Faults

N. A. Eremenko, I. M. Michailov

CSPG Bulletin

... and reservoir layers. The more continuous and permeable the reservoir layer, the more quickly does it attain a normal hydrostatic pressure for the system...

The Formation and Behavior of "Vapor Lock" Pressure Seals and Associated Hydrocarbon Accumulations in Geologically Young Basins

W.M. Benzing , G.M. Shook , S.D. Leroy

GCAGS Transactions

... in the pressure profile shown in Figure 5. Pressure gradients above and below the seal are approximately hydrostatic (9.81 kPa/m, or 0.433 psi/ft), whereas...

Abstract: Evolution of Carbonate Porosity During Burial — Bahamas, Florida and Gulf Coast: Holocene to Jurassic

Robert Halley

Earth Science Bulletin (WGA)

... pressures in excess of normal hydrostatic pressure. Physical, geochemical and lithologic parameters associated with these deep, highly porous reservoirs...

Post-Sedimentational Alteration of Bazhenov Rocks

T. V. Dorofeyeva, S. G. Krasnov

Petroleum Geology: A Digest of Russian Literature

... is suggested by overpressure in the Bazhenov, exceeding two fold the normal hydrostatic pressure. Overpressure is not found beneath the Bazhenov...

Abstract: Variation in Style of Overpressure in Scotian Shelf Wells, Scotian Basin

Dillon White, Georgia Pe-Piper, David J. W. Piper

Atlantic Geology

..., B2Y 4A2 Overpressure is a phenomenon where pressures greatly exceed normal hydrostatic pressure and occurs in many wells within the Scotian Basin...

Abstract: Petroleum Potential and Over-Pressuring in the Molassic Deposits of the South-Eastern Part of the South Adriatic Basin, by M. Gjoka and A. Dulaj; #90956 (1995).

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