Impact of the Stress State and the Natural Network of Fractures/Faults on the Efficiency of Hydraulic Fracturing Operations in the Goldwyer Shale Formation

Partha Pratim Mandal, Reza Rezaee, Joel Sarout

Australian Petroleum Production & Exploration Association (APPEA) Journal

... to the prevalent stress field for future production. We also found that slip along the horizontal or sub-horizontal bedding of the Goldwyer Formation...

Salt-driven evolution of a gas hydrate reservoir in Green Canyon, Gulf of Mexico

Alexey Portnov, Ann E. Cook, Mahdi Heidari, Derek E. Sawyer, Manasij Santra, and Maria Nikolinakou

AAPG Bulletin

... and pressure gradient assumptions and an assumption of structure I (99.9% methane gas) gas hydrate. We use three-dimensional seismic log data and heat-flow...

Delivering a Step-Change in Imaging from Indonesias First Ocean Bottom Node 3D Seismic Survey at Tangguh

Christopher Birt, Hery Prastowo, Danang Priyambodo, Simon Wolfarth, Johnathan Stone

Indonesian Petroleum Association

... interface (especially large velocity contrasts) and are recorded by the horizontal component geophones in the nodes. PS processing models the downgoing P...

Shale gas: Opportunities and challenges

Paul Meakin, Hai Huang, Anders Malthe-Sorenssen, Kjetil Thogersen

Environmental Geosciences (DEG)

... in sedimentary basins that were not evaluated in the included countries, new discoveries in the included countries and the effect of improved recovery...

Analysis and Interpretation of Multi-Source Data at the Hydraulic Fracturing Test Site: A Data-Driven Approach to Improve Well Performance Evaluation in Heterogeneous Formations

Shadi Salahshoor

Unconventional Resources Technology Conference (URTEC)

... design and production performance of the horizontal Wolfcamp wells located in the Midland Basin at the Hydraulic Fracturing Test Site (HFTS1...

Effects of Variations of Stress-Dependent Hydraulic Properties of Proppant Packs on the Productivity Indices of the Hydraulically Fractured Shale Gas Reservoirs

Ali Takbiri Borujeni

Unconventional Resources Technology Conference (URTEC)

... velocity of the fluid, µ is viscosity of the fluid, and p is dynamic pressure gradient of the fluid. Velocity and pressure are calculated from LB simulations...

Geologic Significance of a Geothermal Gradient Curve

Walter B. Lang

AAPG Bulletin

...Geologic Significance of a Geothermal Gradient Curve Walter B. Lang 1937 1193 1205 21 9. (September) The Getty-Dooley well No. 7 was drilled in Eddy...

Clast Fabric of Till and its Development

John F. Lindsay

Journal of Sedimentary Research (SEPM)

... that a small thickness of the sediment deposited may flow in a laminar fashion. Except that the velocity gradient is inverted, the clasts...

Geophysical in-situ stress prediction method based on ADS method

Min Zhang, Xia Wang, Ya Shen, Jinrong Yang, Yintao Cai, Liping Qian, Feng Li, Jianhua Li

International Meeting for Applied Geoscience and Energy (IMAGE)

... for predicting principal stresses in three directions. For many years, the calculation of the horizontal skeleton stress non-equilibrium factor, rock matrix...

Time-lapse full-waveform inversion by model order reduction using radial basis function

Haipeng Li, Robert G. Clapp

International Meeting for Applied Geoscience and Energy (IMAGE)

.... The gradient of the misfit function with respect to the new model parameters can be calculated using the chain rule as follows...

How Diagnostic Fracture Injection Tests (DFITs) Show Horizontal Plane Tensile and Shear Fractures in Various Stress Settings

Alan K. Nicholson, Robert C. Bachman, Robert V. Hawkes

Unconventional Resources Technology Conference (URTEC)

... result from horizontal bedding plane slip at pressures below the overburden stress gradient. This requires that the coefficient of friction...

Petroleum Geology of the Bakken Formation Williston Basin, North Dakota and Montana*

Fred F. Meissner

Montana Geological Society

...). This effect is shown schematically in the velocity/transit time vs. depth plot of Figure 13...

Resolving Multiphase Fractions in Horizontal Wells Using Speed of Sound Measured with Distributed Acoustic Sensors and a PVT Database

Peyman Moradi, Brian Seabrook, Neal Adair, Ricardo Garza

Unconventional Resources Technology Conference (URTEC)

...Resolving Multiphase Fractions in Horizontal Wells Using Speed of Sound Measured with Distributed Acoustic Sensors and a PVT Database Peyman Moradi...

Initiation Processes and Flow Evolution of Turbidity Currents: Implications for the Depositional Record

William R. Normark, David J. W. Piper

Special Publications of SEPM

... demonstrated that at high concentrations to grain collisions prevented turbulent transport of sediment this damping effect started at concentations...

Level of Heat Flow in the Western Part of the Tersko-Kuma Depression

G. M. Sukharev, S. P. Vlasova

Petroleum Geology: A Digest of Russian Literature

... of geothermal gradient calculated by the least squares method for wells 18, 11, and 13 for the 1800–3700 m interval are similar. For example, in well 18...

Depth Prediction Ahead of the Bit: A Case Study from the Singa-1 Discovery Well, South Sumatra

Mark Crawley, David Ginger

Indonesian Petroleum Association

.... Banik, N.C., 1984, Velocity anisotropy of shales and depth estimation in the North Sea basin: Geophysics, 49, 1411-1419. Hardage, B.A., 1983, Vertical...

Pore Pressure Analysis in the Corridor Block, South Sumatra Basin: Distribution, Mechanism, and Prediction

Irfan Yuliandri Syukri, Budi R Permana, Phil D. Heppard, Agus M. Ramdhan, Lambok M. Hutasoit

Indonesian Petroleum Association

... at that depth to the pressure assuming a hydrostatic gradient (0.433 psi/ft used as hydrostatic gradient). Mud weight data, although not a direct measurement...

Abstracts: Plane Wave Reflection and Transmission Coefficients for VTI Media; #90173 (2015)

Ritesh Kumar Sharma and Robert James Ferguson

Search and Discovery.com

... coefficient curves as a function of the horizontal slowness for the situation where the vertical velocity of the upper medium exceeds the vertical...

5 Thermal Anomalies

P. E. Gretener

AAPG Special Volumes

... of the table below lists the expected effect of small quantities of free gas on the shale properties. The classic paper with respect to sonic velocity...

Optimization of Placement of Hydraulic Fracture Stages in Horizontal Wells Drilled in Shale Gas Reservoirs

Xiaodan Ma, Tatyana Plaksina, Eduardo Gildin

Unconventional Resources Technology Conference (URTEC)

... pressure 2950 psi Reservoir temperature 150 Fo Bulk density 161 lbs/ft3 Pressure gradient 0.44 psi/ft Bottom hole pressure 500 psi Horizontal well length...

Thermal Regimes of Small Basins: Effects of Intrabasinal Conductive and Advective Heat Transport

L. Alison Weir, Kevin P. Furlong

CSPG Special Publications

..., shallow basins composed of essentially horizontal strata. In deep, narrow basins, a two-dimensional (2-D) modeling scheme is needed, because 2-D heat...

Numerical Modeling of Ooid Size and the Problem of Neoproterozoic Giant Ooids

Dawn Y. Sumner, John P. Grotzinger

Journal of Sedimentary Research (SEPM)

... growth rate each promote growth of large ooids. The second model demonstrates that high average water velocity and velocity gradient also enhance ooid...

Abstract: Non-Hyperbolic Reflection Tomography for Better Imaging and Interpretation, by Zhaobo Meng and Chengbin Peng; #90105 (2010)

Search and Discovery.com

Fracture reservoir prediction method based on AVO disturbance variance

Guangrui Xiao, Yao Li, Yuru Zhang, Dekui Xu

International Meeting for Applied Geoscience and Energy (IMAGE)

... of AVO gradient, NMO velocity and interlayer travel time in fracture prediction in anisotropic media has become more and more popular. Gray (2004...

Modeling Well Interference and Optimal Well Spacing in Unconventional Reservoirs Using Fast Marching Method

Jixiang Huang, Feyisayo Olalotti-Lawal, Michael J. King, Akhil Datta-Gupta

Unconventional Resources Technology Conference (URTEC)

... the domain, it only varies along the boundary face,   e e thus its gradient ∇τ and associated velocity k ⋅∇τ will be aligned with the boundary surface...