Reinforced Composite Mat Innovative Technology, A Proven Solution for Lost Circulation Control in Duri Field, Sumatera, Indonesia

Mathieu Pasteris, Andre Simanjuntak, Amir Salehpour, Rizky Frima Adista

Indonesian Petroleum Association

... density and a solid content above 50% by volume in order to limit hydrostatic pressure to the minimum while strengthen the wellbore during the cementing...

Quantitative Geologic Aspects of Cretaceous and Jurassic Oil and Gas Pools in Alberta

G. J. Dickie, G. D. Williams

CSPG Bulletin

... pressure gradients close to hydrostatic. Groupings of pools on the Ellerslie Member plots, when mapped, define a western limit for the occurrence of oil...

The Importance of Recognizing Hydrodynamics for Understanding Reservoir Volumetrics, Field Development and Well Placement; #41314 (2014)

Sam Green, Richard E. Swarbrick, and Stephen A. O'Connor

Search and Discovery.com

... is that the reservoir pressure is higher than “normal” (termed Artesian Water by hydrogeologists) and also higher than the non-reservoir rocks (shales) above...

Frictional Mechanics of Seismogenic Thrust Systems in the Upper Continental CrustImplications for Fluid Overpressures and Redistribution

R. H. Sibson

AAPG Special Volumes

...-inclusion studies of associated gold-quartz vein systems, which demonstrate repeated fluid-pressure cycling between lithostatic and hydrostatic levels...

Lower Cretaceous gas shales in northeastern British Columbia, Part II: evaluation of regional potential gas resources

Gareth R. L. Chalmers, R. Marc Bustin

CSPG Bulletin

... range between 0.03 and 1.86 cm3/g, with an average of 0.53 cm3/g at hydrostatic pressure. Porosity of the shale is between 0.7 and 16% and averages 6.5...

Advanced Machine Learning Methods for Prediction of Fracture Closure Pressure, ClosureTime, Permeability and Time to Late Flow Regimes From DFIT

Mohamed Ibrahim Mohamed, Dinesh Mehta, Mohamed Salah, Mazher Ibrahim, Erdal Ozkan

Unconventional Resources Technology Conference (URTEC)

... if a surface pressure gauge is used without downhole shut-in. As the surface pressure goes to zero, the hydrostatic water column drops below the surface...

Uncertainty – Shale Pore Pressure from Borehole Measurements, by Martin D. Matthews, #40163 (2005).

Search and Discovery.com

Basin Evaluation by Integrated Two-Dimensional Modeling of Heat Transfer, Fluid Flow, Hydrocarbon Generation, and Migration (1)

P. UNGERER , J. BURRUS , B. DOLIGEZ , P. Y. CHENET , and F. BESSIS

AAPG Bulletin

... or imposed hydraulic potential to simulate a regional reservoir. Hydrostatic pressure is imposed at the sea floor, and atmospheric pressure...

Reservoir Property Implications of Pore Geometry Modification Accompanying Sand Diagenesis: Anahuac Formation, Louisiana: Part 3. Applications in Exploration and Production

Michael T. Holland

AAPG Special Volumes

... that compaction of the sandstone proceeded to these depths under a normal hydrostatic formation pressure gradient (0.465 psi/ft), then the formations were...

Temperature and pressure characteristics of Ordovician gas condensate reservoirs in the Tazhong area, Tarim Basin, northwestern China

Yifeng Liu, Nansheng Qiu, Wenxuan Hu, Huili Li, Fangyu Shen, and Qianying Yao

AAPG Bulletin

... from the normal (or freshwater) hydrostatic gradient (9.8 MPa/km [0.433 psi/ft]) from a depth of approximately 2500 m (∼8200 ft). The pressures measured...

A Collaborative Study on DFIT Interpretation: Integrating Modeling, Field Data, and Analytical Techniques

Mark McClure, Vidya Bammidi, Craig Cipolla, Dave Cramer, Lucas Martin, Alexei Savitski, Dave Sobernheim, Kate Voller

Unconventional Resources Technology Conference (URTEC)

.... Multiphase flow is described with the black oil model or the compositional model. Fracture walls come out of contact when fluid pressure exceeds normal...

Laboratory deformation of granular quartz sand: Implications for the burial of clastic rocks

Stephen L. Karner, Judith S. Chester, Frederick M. Chester, Andreas K. Kronenberg, Andrew Hajash Jr.

AAPG Bulletin

... assume a representative lithostatic gradient of 23 MPa/km of burial depth and a fluid pressure (or hydrostatic) gradient of 11 MPa/km (Figure 12a). Also...

The Elements of the Oil-Well-Spacing Problem. A Summary of the Factors Influencing the Distance Apart at Which Oil Wells May Be Economically Spaced

Lester C. Uren

AAPG Bulletin

... is capable of dissolving about half of its volume of natural gas at normal atmospheric temperature and pressure. At higher pressures, according...

Assessment of CO2 Sequestration and Enhanced Coalbed Methane Potential in Unminable Coal Seams of the Illinois Basin

Maria Mastalerz, John Rupp, Agnieszka Drobniak, Satya Harpalani, Andrew Anderson, Chris Korose, Scott Frailey, David Morse

AAPG Special Volumes

... point for CO2 is at 31C (88F) and 7.4 MPa (1073 psi) or 756 m (2480 feet) deep at normal hydrostatic conditions (Figure 5).FIGURE 5. Phase diagram for CO2...

The Three Elements of Structural Geology, #41849 (2017).

Terry Engelder

Search and Discovery.com

... is different from the pressure solution on the external rim because the former is enhanced not by the normal pressure from the silt grains within the axial...

Large-Scale Underpressuring in the Mississippian-Cretaceous Succession, Southwestern Alberta Basin

Stefan Bachu, J. R. Underschultz

AAPG Bulletin

... by different positions in the Earth's gravity field. The pressure regime in a basin, or parts thereof, is called hydrostatic or "normal" when pressures...

Development of Probabilistic Production Enhancement Screening Toolbox

I. A. Razak, T. Morillo, M. F. Mustapah

Indonesian Petroleum Association

... with depth. There are two main sources of pressure drop, viz. hydrostatic gradient and frictional gradient. Hydrostatic gradient is related to fluid density...

A Single Slurry System for Cementing Surface Casing in a Low Fracture Gradient Shallow Gas Area Off Shore Kalimantan

Amin Hartoni, Maman Helmana, Bruce Hobson, Robert Huizenga

Indonesian Petroleum Association

... are in the top section of the well. Therefore a limited amount of hydrostatic overburden is present at any given time to help control the shallow gas pressure...

Heat Flow Estimation from BSR: An Example from the Aru Region, Offshore West Papua, Eastern Indonesia

Bagus Priyanto, Ketil Hokstad, Christian Zwach, Mark Van Schaack, Rune Mjøs, Edo Tri Hartadi, Zuzana Alasonati Tasarova, Kenneth Duffaut

Indonesian Petroleum Association

... was tested using Vclay of 0.3, 0.4, and 0.5. After calibration to the well data, a Vclay of 0.5 is selected as the most likely scenario. hydrostatic pressure...

Failure of cap-rock seals as determined from mechanical stratigraphy, stress history, and tensile-failure analysis of exhumed analogs

E. S. Petrie, J. P. Evans, and S. J. Bauer

AAPG Bulletin

... = 0.25), and is hydrostatic pore-fluid pressure (Anderson, 1951; Eaton, 1969; Engelder, 1993). The stress-history models are based on burial-history...

Case History for a Major Alberta Deep Basin Gas Trap: The Cadomin Formation

Robert M. Gies

AAPG Special Volumes

... psi/ft (1.356 kPa/m) at shallow depths, to 0.65 + psi/ft (14.7 kPa/m) in the downdip area. This compares to the normal static pressure gradient...

Electrical Well Logging

Houston Geological Society Study Group

AAPG Bulletin

..., occur (Fig. 1). 1. If the formation pressure is higher than the hydrostatic head, the formation discharges fluid into the hole, and the diagram...

An Analysis of the Roles of Stress, Temperature, and pH in Chemical Compaction of Sandstones

Heather A. Sheldon, John Wheeler, Richard H. Worden, Michael J. Cheadle

Journal of Sedimentary Research (SEPM)

... hydrostatic palaeopressure conditions: Clay Minerals, v. 29, p. 463-473. TADA, R., AND SIEVER, R., 1986, Experimental knife-edge pressure solution...

Identification and calculation of transfer overpressure in the northern Qaidam Basin, northwest China

Changyu Fan, Zhenliang Wang, Aiguo Wang, Suotang Fu, Liqun Wang, Yongshu Zhang, Hongxi Kong, and Xiao Zhang

AAPG Bulletin

...) for the calculation of hydrostatic pressure. Well EI2 of the Eboliang I structure developed overpressure at 1000–3000 m (3280.84–9842.52 ft) (Figure...

Prospects of Dnieper-Donets Depression for Gas of Central-Basin Type

Yu. B. Kobyshev

Petroleum Geology: A Digest of Russian Literature

... for this mega-isolated complex is the presence of abnormally high formation pressure. Normal hydrostatic pressures are found above and below this complex...