A5006378908- Hydraulic Fracturing and Reservoir Analysis
- Hydrocarbon exploration and reservoir analysis
- Drilling and Well Engineering
- Geological formations and processes
- Reservoir Engineering and Simulation Methods
- Rock Mechanics and Modeling
- Seismic Imaging and Inversion Techniques
- Geological and Geochemical Analysis
- Grouting, Rheology, and Soil Mechanics
- Groundwater flow and contamination studies
- Marine animal studies overview
- Geological Modeling and Analysis
- Enhanced Oil Recovery Techniques
- Paleontology and Stratigraphy of Fossils
- Arctic and Antarctic ice dynamics
- Geology and Paleoclimatology Research
- Fluid Dynamics Simulations and Interactions
- Methane Hydrates and Related Phenomena
- Fish Ecology and Management Studies
- Fish Biology and Ecology Studies
- Geological and Geophysical Studies
- Underwater Acoustics Research
- earthquake and tectonic studies
- Landfill Environmental Impact Studies
- Clay minerals and soil interactions
Sandia National Laboratories California
2019
The University of Texas at Austin
2004
Bureau of Economic Analysis
2004
University of Illinois Urbana-Champaign
1991-1993
NOAA National Marine Fisheries Service
1971-1981
United States Department of Commerce
1963
Accurate predictions of natural fracture flow attributes in sandstones require an understanding the underlying mechanisms responsible for growth and aperture preservation. Poroelastic stress calculations combined with mechanics criteria show that it is possible to sustain opening-mode sublithostatic pore pressure without associated or preemptive shear failure. Crack-seal textures length ratios suggest preserved apertures reflect loading state caused propagation. This implies that,...
Joanna Ajdukiewicz joined Exxon Production Research Company in 1980. She was Reservoir Quality Assessment and Prediction team lead there from 1991 to 1995 at Imperial Oil Centre Calgary 1997. Subsequently, she has worked a variety of Exploration assignments the North Sea, Gulf Mexico, Middle East. Her current interests are predicting distribution early diagenetic controls on deep reservoir quality. Rob Lander develops models for Geocosm LLC. He obtained his Ph.D. geology University Illinois...
Abstract Fracture pattern development has been a challenging area of research in the Earth sciences for more than 100 years. Much learned about spatial and temporal complexity inherent to these systems, but severe challenges remain. Future advances will require new approaches. Chemical processes play larger role opening‐mode fracture hitherto appreciated. This review examines relationships between mechanical geochemical that influence patterns recorded natural settings. For fractures formed...
A new model accounts for crystal growth patterns and internal textures in quartz cement sandstone fractures, including massive sealing deposits, thin rinds or veneers that line open fracture surfaces, bridge structures span otherwise fractures. High-resolution cathodoluminescence imaging of deposits indicates they form association with repeated micron-scale fracturing growing crystals, whereas do not. Model results indicate the three morphology types develop response to (1) ratio rates...
Existing quartz cement models assume that the rate of growth per unit surface area is independent grain size. Application one such model to four geologically diverse data sets reveals a systematic error with size values in finer grained sandstones are overpredicted. Our laboratory synthesis overgrowths indicates this grain-size effect results from more rapid development euhedral crystal forms on smaller grains. Experiments show along c axis drops by factor about 20 after faces develop....
Research Article| July 01, 2010 A 48 m.y. history of fracture opening, temperature, and fluid pressure: Cretaceous Travis Peak Formation, East Texas basin S.P. Becker; Becker * 1Bureau Economic Geology, The University at Austin, Station Box X, 78713-8924, USA *Current address: ExxonMobil Upstream Company, P.O. 2189, Houston, 77252-2189, USA. Search for other works by this author on: GSW Google Scholar P. Eichhubl; Eichhubl † †E-mail: peter.eichhubl@beg.utexas.edu S.E. Laubach; Laubach R.M....
Abstract The porosity and permeability of sandstone carbonate reservoirs (known as reservoir quality) are essential inputs for successful oil gas resource exploration exploitation. This chapter introduces basic concepts, analytical modelling techniques some the key controversies to be discussed in 20 research papers that were initially presented at a Geological Society conference 2014 titled ‘Reservoir Quality Clastic Carbonate Rocks: Analysis, Modelling Prediction’. Reservoir quality both...
We have developed a model for the formation of fibrous illite in sandstones where kaolinite is primary reactant and potassium derived from in-situ K-feldspar grain dissolution or imported into reference frame. Illite fiber nucleation growth are modeled using Arrhenius expressions that consider saturation state addition to temperature time. Nucleation occurs on pore walls, muscovite detrital may be defined as energetically favorable substrates. The integrated with other Touchstone™ models...
Diagenetic processes alter petrophysical properties, such as porosity and permeability, of clastic sediments. An understanding these is therefore pivotal for any reservoir quality assessments. Thermal exposure among the crucial factors influencing diagenesis can vary significantly in widespread formations, e.g. due to regional variations burial history. Especially quartz overgrowth controlled by temperature we here demonstrate effect spatial thermal variability on degree cementation. Our...
Smectite is an important component of siliciclastic reservoirs in many petroliferous basins around the world and has numerous industrial environmental applications. Beyond its ability to preserve or degrade porosity permeability sandstones, smectite also acts as a precursor for other diagenetic cements, such illite zeolites. While studies have explored role chlorite formation, controls mechanisms governing formation authigenic coatings from feldspar precursors are rarely investigated. In...
Abstract Diagenesis and fracture are often linked processes in deformed rock. Empirical observations show that quartz-lined natural fractures very common sandstones have been exposed to temperatures excess of 90°C. These exhibit crack-seal textures as well cement bridges propping the open preserving porosity. diagenetic effects examined context detailed characterizations generated by geomechanical modelling. Aperture, length network geometry subcritical crack growth various biaxial loading...
This study describes porosity reduction by brittle deformation and the application of Touchstone sandstone diagenesis modeling software to assess relative timing interactions between grain fracturing cement formation during burial compaction. Two examples from a previous compactional are used: Oligocene Frio Formation, Gulf Mexico Basin, Cambrian Mount Simon Illinois United States. Grain compaction creates intragranular fracture surfaces that favorable sites for quartz nucleation compared...
Abstract Control (or unshocked) and shocked test) rainbow trout (Salmo gairdneri) were held through spawning to determine the effects of electrical shock on survival, growth, fecundity two year classes—young 1953 class yearlings 1952 class—and survival eggs fry exposed fish. The test groups for 30 sec one sets conditions—the young a pulse frequency 8 pulses/sec, duration 40 milliseconds, voltage gradient 1 volt/cm; 5 60 0.75 volt/cm. exposure was longer than that usually encountered by fish...