Estimation of 3D Distribution of Pore Pressure from Surface Drilling Data - Application to Optimal Drilling and Frac Hit Prevention in the Eagle Ford

James Kalinec, Mohit Paryani, Ahmed Ouenes

Unconventional Resources Technology Conference (URTEC)

... approach Since the pore pressure is unknown in the equation below, the methodology starts by assuming a hydrostatic pressure to estimate the initial...

Mud Volcanoes on the Seafloor of the Colombian Caribbean Sea: Undesirable Lumps or Exploration Tools ?

G.Y. Ojeda, R. Hernandez, I.D. Olaya

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... is being performed. Assuming a laterally constant lithostatic pressure gradient, mud volcanoes’ maximum height above background is a proxy...

Annular Integrity Analysis a Through-Tubing Measurement and Analysis Method to Identify, Diagnose and Quantify Fluid Movement in Multiple Annuli Caused by Loss of Annular Integrity

Alan Muhadjir, Sathish Kumar

Indonesian Petroleum Association

..., by the production or injection of fluids in a planned program sequence. • Measurement of hydrostatic pressure and fluid density in the well bore...

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)

... section. • Fracture Closure Gradient (Shmin): 0.93 psi/ft. • Pore Pressure Gradient: 0.85 psi/ft Using these field measurements an upper bound value...

Fault Facies Identification to Determine Optimum Coal Cleat Occurence as Coal Bed Methane Reservoir Potential, Case Studies: Warukin Coal Bearing Formation (WCBF), Barito Basin, South Kalimantan, Indonesia

Rieza R. Putra, Dian Larasati, Sunarli Ardi, Fikri Muhammad Fiqih, Hilman Ramdani, Djedi Widarto, Agus Guntoro, Alfian Usman

Unconventional Resources Technology Conference (URTEC)

... Modulus at 2652.74 MPa, Bulk Modulus 1163.48, Poisson Ratio 1069.65. Hydrostatic crossplot between depth against pressure (confining pressure from...

Completion Techniques Used in the Atoka and Bend Conglomerates, Parker County, Texas

Lyle Lehman

Dallas Geological Society

... fracturing, zone conditions should meet the following five criteria: 1) most acid water recovered; 2) good bottom-hole pressure (BHP), with a gradient...

Upper Valley: T. 36 & 37 S., R. 1 & 2 E., SLB&M: Garfield County, Utah

David L. Allin

Utah Geological Association

..., no water Initial Pressure: 1,659 psi at 6,670′ on DST Perforations: 6,660-83′ (K-3 zone of Beta Kaibab) and 6,715-33′ (K-4 Porosity zone of Beta Kaibab...

Subsurface Temperature Investigations Using Seismic and Bore Hole Temperature Data, Vermilion and Lafourche Parishes, Louisiana

A. H. M. Shah Alam, Rex H. Pilger, Jr.

GCAGS Transactions

... (5,000 m) (Jones, 1975). Abnormal pressure has been defined as any pressure which exceeds the hydrostatic pressure. Undercompaction of clay due to rapid...

Sand Production Management: The Critical Challenge in Zawtika Gas Production; #20351 (2016)

Tanawat Junmano, Lee Boo Soon, Anan Amornprabharwat, Sutasinee Kittisupalauk, Rangsan Bhengbhun

Search and Discovery.com

... pressure & temperature, Hydrostatic gradient 0.433 – 0.44 psi/ft Temperature 40-120degC • Dry gas with low CO2 (0.1-0.4%) and no H2S and Hg with max N2...

Modeling the evolution of pore pressure from deep wastewater injection in the Midland Basin, Texas

Jun Ge, Jean-Philippe Nicot, Katie M. Smye, Amanda Z. Calle, Peter Hennings, Elizabeth A. Horne, and Jianqiao Leng

AAPG Bulletin

... initial shut-in pressure from DST to estimate the pore pressure gradient has been used in much modeling work (e.g., Loughry et al., 2015), when...

Brittleness modeling selects optimum stimulation zone in shaly source rocks in the Whangai Formation, New Zealand

Claudio Rabe, Raul Correa Rechden Filho, Jesus Pastor Salazar, Fernando Della Pasqua, Giovanni Chaves Stael, and Luiz Antonio Pierantoni Gamboa

AAPG Bulletin

... is equal to 18.47 lb/gal. Pore Pressure The Pp is the pressure of fluid within the pores of rock. The Pp may be above or below the hydrostatic pressure...

Factors Necessary to Define a Pressure Seal: Discussion

Zhiyong He, Jeff Corrigan

AAPG Bulletin

... imposing a stepwise change in excess pressure (head) across the media while applying a zero-head (hydrostatic pressure) upper boundary (Figure 1b...

Geological sequestration of carbon dioxide in the Cambrian Mount Simon Sandstone: Regional storage capacity, site characterization, and large-scale injection feasibility, Michigan Basin

David A. Barnes, Diana H. Bacon, Stephen R. Kelley

Environmental Geosciences (DEG)

... Formation. A hydrostatic pressure gradient was assigned to vertical boundary surfaces located radially from the vertical injection well. This assumption...

Hydrologic Factors Related to Coal Development in the Eastern Powder River Basin

Richard W. Davis

Wyoming Geological Association

... vertical water movement and cause a difference in hydrostatic pressure across it. The coal becomes a confined aquifer. In scoria areas the water...

FAST: A New Technique for Geomechanical Assessment of the Risk of Reactivation-related Breach of Fault Seals

Scott D. Mildren, Richard R. Hillis, Paul J. Lyon, Jeremy J. Meyer, David N. Dewhurst, Peter J. Boult

AAPG Special Volumes

... to the buoyancy pressure associated with 1 km (0.6 mi) of oil column, assuming the hydrostatic gradient is 9.8 MPa/km (1 g cm3) and oil gradient 8.8 MPa/km (0.9...

Capillary Sealing as an Overpressure Mechanism in the Anadarko Basin, by Constantin Cranganu and Maria A. Villa, #40187 (2006).

Search and Discovery.com

The Subduction Myth*

S. Warren Carey

Southeast Asia Petroleum Exploration Society (SEAPEX)

... at surface. Highest heat flux, steepest temperature gradient. Lowest viscosities and minimum fracture, notwithstanding fastest flow. High pressure...

Timing and Processes of Fracture Formation in Tight-Gas Sandstone Reservoirs Using Fluid Inclusions

Andras Fall, Peter Eichhubl, Stephen E. Laubach

Unconventional Resources Technology Conference (URTEC)

... system for 2 wt% NaCl salinity (Duan and Mao, 2006), and the hydrostatic gradient of 9.9 MPa/km (0.43 psi/ft) and the lithostatic gradient of 24.8 MPa...

Advanced Pressure Coring, by Erik C. Anders and Martin Rothfuss, #40428 (2009).

Search and Discovery.com

A Model for the Evolution of Hot (>200°C) Overpressured Brines Under an Evaporite Seal: The Fundy/Magdalen Carboniferous Basin of Atlantic Canada and Its Associated Pb-Zn-Ba Deposits

Casey Ravenhurst, Marcos Zentilli

CSPG Special Publications

... pressures. The λ parameter, which is the ratio of fluid pressure to overburden pressure, is about 0.45 in a normal (hydrostatic) pressured basin. In nature...

Predicting Reservoir Property Uncertainty Through AVA Monte Carlo Modeling at Kerisi and Hiu Fields, Natuna Sea

Riki Tasrianto, Yasril Kahar, John Hughes

Indonesian Petroleum Association

... hydrostatic pressure, formation temperature, gas specific gravity, oil gravity and brine salinity. These were taken from the Kerisi-4 well and used...

Refracturing Vs. Infill Drilling - A Cost Effective Approach to Enhancing Recovery in Shale Reservoirs

Edgar Urban, Daniel Orozco, Alfonso Fragoso, Karthik Selvan, Roberto Aguilera

Unconventional Resources Technology Conference (URTEC)

... is quantified by the ratio of the in-situ stress contrast (Ap) and the stress contrast generated by pore pressure gradient (q). A field having a low value...

High Pressure Shales and their Depositional Facies, Southern Louisiana Cenozoic: NOTES

Ervin G. Otvos, Jr.

Journal of Sedimentary Research (SEPM)

...High Pressure Shales and their Depositional Facies, Southern Louisiana Cenozoic: NOTES Ervin G. Otvos, Jr. 1970 Vol. 40 No. 1. (March), The volume...

Predicting Autosuspension in Steady Turbidity Flow: Ignition Points and Their Relation to Richardson Numbers

Henry M. Pantin, Mark C. Franklin

Journal of Sedimentary Research (SEPM)

... velocity. The first term on the right-hand side (R.H.S.) represents the (adverse) hydrostatic gradient, the second term the down-slope effect...

An Inverse Approach for Relating Seismic Velocity and Overpressure to Permeability and Sedimentation History in Deep Basins, #40863 (2012)

Hector M. Moreno, Tim A. Minshull, Rosemary A. Edwards,

Search and Discovery.com

... presentation at AAPG International Conference and Exhibition, Milan, Italy, October 2326, 2011 Abstract Pore pressures exceeding hydrostatic (“overpressures...