Origin of overpressure and pore-pressure prediction in the Baram province, Brunei

Mark R. P. Tingay, Richard R. Hillis, Richard E. Swarbrick, Chris K. Morley, Abdul Razak Damit

AAPG Bulletin

... transition zones. A pore-pressure database was compiled using wireline formation interval tests, drillstem tests, and mud weights from 157 wells in 61 fields...

Averaging Predictions of Rate-Time Models Using Bayesian Leave-Future-Out Cross-Validation and the Bayesian Bootstrap in Probabilistic Unconventional Production Forecasting

Leopoldo M. Ruiz Maraggi, Larry W. Lake, Mark P. Walsh

Unconventional Resources Technology Conference (URTEC)

... are accounting for the uncertainty in model predictions. The model ensemble assigns weights to each model according to its predictive performance...

Ch.7 - Cretaceous Basin Center Gas Plays - The Influence of Depositional Environments of Coal Stratigraphy

John C. Horne

Rocky Mountain Association of Geologists

... generate methane (Figure 7.2), as well as mud weights and DST pressures from selected wells, Law and Spence defined the top of overpressure in the 0 82...

Kurdistan: Safe and Secure, with Billion Barrel Prospects

Jane Whaley

GEO ExPro Magazine

... meant that we drilled with high mud weights, in case we encountered a high pressure gas column,” Steve explains. “However, we found oil, under much...

Reservoir Geometrics Applied to Drilling and Completion Programmes in Hostile and Complex Environments: North West Shelf, Timor Sea, North Sea and Colombia

D. A. Castillo, D. Moos, C. A. Barton, M. D. Zoback, P. Peska

Papua New Guinea (PNG) Petroleum Convention Proceedings

... cases is not related to mud weights exceeding the fracture gradient; but rather, is realted to a borehole that has encountered criticallystressed natural...

Unlocking the Potential of a Tight Gas Sand Giant:Pinedale Field, Wyoming

Stephen R. Kneller, Sally G. Zinke, Robert W. McDermott, Troy G. Graham, Sarah E. Shearer

Rocky Mountain Association of Geologists

..., overpressured Lance section. The pressure at the top of the Lance is approximately 4500 psi and requires mud weights of approximately 9.5 pounds per gallon...

Pressure in Miocene Carbonate Exploration Targets

Stephen Jenkins, Richard Swarbrick, Anthony Mallon, Stephen O'Connor

Indonesian Petroleum Association

... pressures (7105 psi (49 MPa) at 3048m which equates to Equivalent Mud Weights of 13.5 to 14.0 ppg). These elevated pressures can result in breaching...

Improving Depth Prediction Accuracy of Quantified Drilling Hazards

W. Scott Leaney, William H. Borland

Geological Society of Malaysia (GSM)

... reservoirs later. The difficulty is that the mud weight required to maintain pressure balance with the formation can change rapidly as drilling...

Abstract: Pore Pressure Estimation and Calibration in Gas Shale Reservoir; #90255 (2017)

Xin Chen

Search and Discovery.com

... theory is applied in the implementation of 3D pore pressure model. The model is then calibrated with drilling mud weight by referring to total gas...

Fluids characterization using cuttings extracts analyzed by gel permeation chromatography

G. Eric Michael, Julian Moore, Lloyd Jones, Alexandra Cely, Gulnar Yerkinkyzy, Tao Yang

International Meeting for Applied Geoscience and Energy (IMAGE)

... extracts would be a highly valuable tool in reservoir characterization; however existing methods are often severely impacted by oil-based mud...

Logging While Drilling as the Kernel Acquisition … Fully Integrated Formation Evaluation in a Deepwater Exploration Campaign, Makassar Strait, Indonesia

Mathias Horstmann, Graziano Capone, Lilik Budi Riyanto, Yus Wilian, Scott Fey

Indonesian Petroleum Association

... to the formation pressure, the associated downhole fluid analysis (DFA). All acquired LWD data must be quality controlled in real time and reprocessed...

Kristin „ A Tough Lady

Halfdan Carstens

GEO ExPro Magazine

... in the future. It may be necessary in 3-4 years time to use mud weights that are lower than the pore pressure. "This is known as underbalanced drilling...

Determination of Chloride in Water from Core Samples: GEOLOGICAL NOTES

Wolfgang V. Swarzenski

AAPG Bulletin

... water content. It is obvious that these samples do not lend themselves to either method of analysis. Contamination by drilling mud may occur...

The 30 Minute AFE: Attributes and Benefits of a Spreadsheet Program used to Develop a Well Design, a Cost Estimate and an Authority for Expenditure (AFE)

Alexander Megawe, Dennis Rider, Puput Ariyanto

Indonesian Petroleum Association

... and 20, depth vs days curve, depth vs cost curve, and material forecasts that include mud products, cement products, bits, wellheads, specific weights...

Overpressure transmission through interconnected igneous intrusions

Nick Schofield, Simon Holford, Alex Edwards, Niall Mark, and Stefano Pugliese

AAPG Bulletin

..., Colorado, June 8–10, 1994, 12 p. van Ruth, P., R. Hillis, R. Swarbrick, and P. Tingate, 2000, Mud weights, transient pressure tests and the distribution...

CBM Operational Lessons Learned … Barito Basin, Indonesia

Ellen De Man, Alan Gantyno, Suriamin Huang, Kenneth Petersen, Eri Saferi, Ratna Widiarti, Scott Wertanen, Setya Rahardjanto

Indonesian Petroleum Association

... and pore pressure estimates and was then validated by breakout analysis using oriented 4-arm caliper logs from offset wells and shale reactivity...

Novel Pore Pressure Prediction Technique for Unconventional Reservoirs

David Yale, Adriana Perez, Robert Raney

Unconventional Resources Technology Conference (URTEC)

... the basin and its prospectivity. Rittenhouse et al (2016) utilized mud weights, DSTs, and DFITs across the Delaware basin to develop an empirical...

Drilling Sweeps Optimization Based on Downhole Measurements

Yezid Arevalo, Richard Harmer, Julio Palacio, Juan Pablo Casanelli

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... of the sweep weights (from 2 to 4 ppg above mud weight), the best sweep performances appear to be for sweeps with at least 3 ppg above mud weight. The sweeps...

Maturity and Overpressure Evolution of the Lower Cambrian in the Central Paleo-Uplift, Sichuan Basin; #10585 (2014)

Yifeng Liu, Nansheng Qiu, Yongshui Zhou, and Zengye Xie

Search and Discovery.com

...). Combining pressure measure data (DSTs, mud weights and sonic transit time) with seals analysis, five pressure systems, including three overpressure...

Use of Liquid Propane for Expulsion of Oil from Pools

F. I. Kotyakhov

Petroleum Geology: A Digest of Russian Literature

... stratum: Gostoptekhizdat. 8. Kotyakov, F. I. et al., 1958, Theoretical analysis of the oil output of ideal ground. Physics and thermodynamics...

The Effect of Gravitational Compaction on the Structure of Sedimentary Rocks: A REPLY TO A DISCUSSION BY W. W. RUBEY

Hollis D. Hedberg

AAPG Bulletin

.... Furthermore, the porosities of columns of mud a few inches or feet in thickness are very sensitive to pressure and highly variabl , depending...

Breakthrough in Tripping And Running Completion System Technique During Underbalanced Drilling Operation Changes the Horizon in West Java Field Future Development

Andri M. Hidayat, Fikri Irawan, Yoshua P. Iskandar

Indonesian Petroleum Association

.... Depend on reservoir pressure characteristic and formation environment, water based mud or oil based mud are applicable to be used as the kill fluid...

Exploration, Development and Production Activities in the Denison Trough: 1998…1999

Bonnie Lowe-Young

Petroleum Exploration Society of Australia (PESA)

...• pressed from heavy mud weights. Although no gas flowed to surface on drill stem test, analysis of the Yandina 1 test data indicated that reasonable...

Section Two: Enclosing Sediment Variations

New Orleans Geological Society

... pressure gradients indicate essentially the same conditions as Timko and Fertl's nonproductive superpressure zones. In addition, note the mud weights...

The Effect of Unconformities and Subsequent Loading on Pore Pressure Profiles

Jakob Heller, Stephen O 'Connor, Andrew Emery, Ed Hoskin, Jack Lee, Chris Ward

Indonesian Petroleum Association

...-based pressure analysis not useful. In this situation the loading above the unconformity can be simply related to the Jurassic shale pressures directly...