Ekofisk : First of the Giant Oil Fields in Western Europe

Edwin Van Den Bark, Owen D. Thomas

AAPG Bulletin

... by reducing the differential stresses at the grain contacts. As the hydrostatic pressure approaches the lithostatic pressure, such a reduction...

Fluviatile Obstacle Marks from the Wadis of the Negev (Southern Israel)

Iaakov Karcz

Journal of Sedimentary Research (SEPM)

... around protruding round pebbles and poles starts near the upstream quarter points on the obstacle circumference. In the ease of pebbles elongated normal...

Burial History Reconstruction of the Appalachian Basin in Kentucky, West Virginia, Ohio, Pennsylvania, and New York, Using 1D Petroleum System Models

Debra K. Higley, Catherine B. Enomoto

Rocky Mountain Association of Geologists

... corrected to normal pressure for several wells in northwestern Europe and determined that vitrinite reflectance was retarded in overpressured intervals...

Rejuvenate Unconventional Wells by Application of High-Pression Pulse Waves in the Fracture Network - An Alternative to Refracturing Operations

Charles Fensky, Youssef Fawaz, Mike Perri, Christian La Borderie, Gilles Pijaudier-Cabot, Antoine Jacques

Unconventional Resources Technology Conference (URTEC)

... to be packaged in a pressure vessel that can withstand wellbore hydrostatic pressures and be made of components that can withstand a range...

Applications of Novel, High Temperature, Water-Based Drilling Fluids on Some of C.P.I.'s Offshore Sumatra Wildcats

S. C. Polnaszek

Indonesian Petroleum Association

... the hydrostatic pressure drops as circulation is lost. Therefore, the drilling fluid programs on these Langsa Block exploration wells called for using...

Mapping Northern Australia's Present Day Stress Field: The Canning Basin

Adam Bailey, Paul Henson

Petroleum Exploration Society of Australia (PESA)

... (calculated from mud weight), Pp is pore pressure (assumed to be hydrostatic), and T is tensile rock strength (assumed to be 0 when DITFs are observed...

Application of Novel Doped Nanomaterial Resin to Increase Sand Consolidation in a Loose Sandstone Reservoir

William Angtony, Hadi Winarto, Steven Chandra, Herianto, Yulio Adhitya Nugroho, Taufan Marhaendrajana

Indonesian Petroleum Association

... against overburden pressure and hydrostatic pressure from column of fluid (water or hydrocarbon). The test results in exemplary fashion where cores...

An Integrated Interpretation for the Origin of the Patrick Draw Oil Field Sage Anomaly (1)

GERALD K. ARP

AAPG Bulletin

... (1960-1985) and do not represent total production to date. For many years the produced gas was reinjected for pressure maintenance (Weimer 1966; Richers...

Biological Pumping Upwards of the Coarse Fraction of Deep-Sea Sediments

I. N. McCave

Journal of Sedimentary Research (SEPM)

... Pressures Chapman (1950) suggested that the maximum thrust exerted by an animal with a hydrostatic skeleton equals the internal hydrostatic pressure times...

Petrology of Gypsum-Anhydrite Deposits in Southwestern Indiana

Wayne M. Bundy

Journal of Sedimentary Research (SEPM)

... out that pressure resulting from weight of overlying rocks is not entirely hydrostatic and some directed pressure may result from differences...

Stratigraphic Capture: A Depositional Process Facilitating Fluid and Gas Movement Between Porous and Permeable Beds

John B. Echols, Don Goddard

GCAGS Transactions

... behind the flow is a difference in density, or formation fluid (gas) pressure because of the geostatic/hydrostatic gradient, between the individual...

Geology and Hydrocarbons of the Po Basin: Europe

T. Rocco , D. Jaboli

AAPG Special Volumes

... the pressure is slightly above hydrostatic and the difference generally increases with depth. For example, in the Correggio field a gas reservoir at 1,164 meters...

The Origin of Gilsonite Vein Deposits in the Uinta Basin, Utah

B. Monson, J. Parnell

Utah Geological Association

... pressure in the overlying strata and extending the fractures into the upper parts of the succession. Fracture growth only ceases when the hydrostatic...

ABSTRACT: Fault Seal Failure - An Explanation for Geological Depletion of Reservoir Pressure, by Swarbrick, Richard E.; O'Connor, Stephen; #90155 (2012)

Search and Discovery.com

Time-Depth Modeling in High Pore-Pressure Environment, Offshore East Coast of India

Search and Discovery.com

Fault Seal Integrity in the Timor Sea Area: Prediction of Trap Failure Using Well-Constrained Stress Tensors and Fault Surfaces Interpreted from 3D Seismic

D. A. Castillo, D. J. Bishop, M. de Ruig

Indonesian Petroleum Association

... pressure was generally considered to be normal and estimated to range between 1.03 and 1.04 SG. The vertical principal stress (Sv) was determined...

Fracture Pressure Predictions in Highly Depleted Reservoir: An Approach to Prevent Mud Losses while Drilling in the Mature Tunu Field

Dhanny Fadlan, Roni Herdiyanto, Baginda Saragih, Yasinto Priastomo, Rio Sitorus, Roy Lesmana

Indonesian Petroleum Association

..., these relations are empirically the same as Formula 1 for normal stress regime basin (σv > σH > σh). Pore Pressure Pore pressure are taken from direct...

Abstract: Sandstone Diagenesis above and below a Pressure Seal--Tuscaloosa Trend, Louisiana, by S. D. Weedman, W. Albrecht, and S. L. Brantley; #91004 (1991)

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Petrophysical properties of the Green Canyon Block 955 hydrate reservoir inferred from reconstituted sediments: Implications for hydrate formation and production

Yi Fang, Peter B. Flemings, Hugh Daigle, Stephen C. Phillips, P. Kevin Meazell, and Kehua You

AAPG Bulletin

... to be hydrostatic (pore pressure gradient = 8.6 ppg [0.447 psi/ft]) because there was no evidence of any elevated pore pressures during previous...

In-Situ Stresses, Rock Strength, Fluid Pressure, and Implications for Wellbore Stability and Oil and Gas Development in the Senoro and Tiaka Fields, Sulawesi, Indonesia

William L. Power, Agus Tjengdrawira, Sitio Aprianto, Sugiyanto Suwono, Syahriza Ghanny Rachman, Muhammad Wijanarko, Dwi Hudya Febrianto, Anies Baasir, Deddy Hasanusi

Indonesian Petroleum Association

..., the rock strength, and the pore pressure has been developed. The Field is subject to a normal faulting state of stress, but there is not a large degree...

An Integrated, Multi-scale Approach to Salt Dynamics and Internal Dynamics of Salt Structures; #40703 (2011)

Peter Kukla, Janos Urai, John Warren, Lars Reuning, Stephan Becker, Johannes Schoenherr, Markus Mohr, Heijn van Gent, Steffen Abe, Shiyuan Li, Guillaume Desbois, Zsolt Schléder, Martin de Keijzer

Search and Discovery.com

... at hydrostatic pressures (black circles) and one at near lithostatic pressures (grey circles). 20 Pressure modelling Click to view Presenter's Notes...

Description and Analysis of the First Two Vertical Pilot Wells Completions to the Palermo Aike Shale: A Highly Promising Unconventional Reservoir in Austral Basin, Argentina

Florencia Melendo, Carlos Gargiulo, Nicolas Garcia, Damián Jait

Unconventional Resources Technology Conference (URTEC)

... of 30 BOPD. Beside the discovery of producible hydrocarbon, a formation overpressure of 95% above normal gradient was proved. Ea. Campos.a-2 well (PBE...

Discovering Subsurface "Oceans" with Classification: A Machine Learning Method to Predict Drilling Challenges from Nearby Saltwater Disposal Wells

Justin Kilb, Brandon Brame

Unconventional Resources Technology Conference (URTEC)

... is recorded as 0 psi, after being shut in, then it can be assumed that the injection formation pressure does not exceed the hydrostatic pressure of a column...

Determining the Optimal Artificial Lift Implementation Strategy in the Midland Basin

Y. Pradhan, H. Xiong, J. Forrest, J. Zhu, A. Kianinejad, A. Cui, S. Gao

Unconventional Resources Technology Conference (URTEC)

..., with 500 psi for gas lift. Rod pump minimum BHP’s were estimated from the hydrostatic of the producing fluid. Table 5: AL Pressure Conversion Cases...

Safety of Water-Flooding Pressures at Bradford, Pennsylvania

Frederick G. Clapp

AAPG Bulletin

... is exploded under the above condition, practically an infinite pressure would be developed, since if complete explosion is obtained, the normal resulting...