Sedimentology and Reservoir Architecture of a Synrift Lacustrine Delta, Southeastern Mongolia

2004 ◽  
Vol 74 (6) ◽  
pp. 770-785 ◽  
Author(s):  
C. L. Johnson ◽  
S. A. Graham
Keyword(s):  
Reservoir Architecture ◽  
Lacustrine Delta

APPLICATIONS OF MODERN AND ANCIENT GEOLOGICAL ANALOGUES IN CHARACTERISATION OF FLUVIAL AND FLUVIAL-LACUSTRINE DELTAIC RESERVOIRS IN THE COOPER BASIN

2000 ◽  
Vol 40 (1) ◽  
pp. 393 ◽  
Author(s):  
S.C. Lang ◽  
J. Kassan ◽  
J.M. Benson ◽  
C.A. Grasso ◽  
L.C. Avenell
Keyword(s):  
Western Siberia ◽  
Reservoir Architecture ◽  
Reservoir Models ◽  
3D Geometry ◽  
Mouth Bar ◽  
Lacustrine Delta ◽  
Crevasse Splay ◽  
Subsurface Reservoir ◽  
Central Thailand ◽  
Cooper Basin

Reservoir characterisation in fluvial and fluvial- lacustrine delta successions is enhanced by the use of appropriate modern and ancient analogues to understand subsurface reservoir architecture and to help build appropriately scaled reservoir models. Two case studies of reservoir characterisation in the Cooper Basin are used to illustrate the value of analogues. Firstly the Late Permian Toolachee Formation crevasse splay reservoirs of the Cooper Basin, southwest Queensland are outlined, and analogues from the Ob River in Western Siberia illustrate the relative scale of crevasse splay deposits within avulsion belts in a cool-temperate peat-forming environment. The South Blackwater coal mine in the Permian Bowen Basin is used as an analogue to quantify the 3D geometry and reservoir architecture of crevasse splays and to highlight subsurface reservoir heterogeneity.Secondly, the Early Permian Epsilon Formation shallow water lacustrine delta reservoirs are outlined, and analogues from the extant geometry of the distributary channels and relict mouth bar deposits from the fluvial dominated Neales Delta in Lake Eyre are used to interpret flow rate decline trends and probable reservoir architecture. The subsurface Tertiary lacustrine deltaic complex of the Sirikit Field from the Phitsanulok Basin, central Thailand, is selected as an ancient analogue for the multistorey reservoirs developed within amalgamated mouth bar complexes intersected in the lower Epsilon Formation.

scholarly journals Melt movement through the Icelandic crust

2019 ◽  
Vol 377 (2139) ◽  
pp. 20180010 ◽  
Author(s):  
Robert S. White ◽  
Marie Edmonds ◽  
John Maclennan ◽  
Tim Greenfield ◽  
Thorbjorg Agustsdottir
Keyword(s):  
Carbon Dioxide ◽  
Time Scales ◽  
Upper Mantle ◽  
High Strain ◽  
Strain Rates ◽  
Complementary Information ◽  
Reservoir Architecture ◽  
Rift Zones ◽  
Shallow Crust ◽  
Basaltic Melts

We use both seismology and geobarometry to investigate the movement of melt through the volcanic crust of Iceland. We have captured melt in the act of moving within or through a series of sills ranging from the upper mantle to the shallow crust by the clusters of small earthquakes it produces as it forces its way upward. The melt is injected not just beneath the central volcanoes, but also at discrete locations along the rift zones and above the centre of the underlying mantle plume. We suggest that the high strain rates required to produce seismicity at depths of 10–25 km in a normally ductile part of the Icelandic crust are linked to the exsolution of carbon dioxide from the basaltic melts. The seismicity and geobarometry provide complementary information on the way that the melt moves through the crust, stalling and fractionating, and often freezing in one or more melt lenses on its way upwards: the seismicity shows what is happening instantaneously today, while the geobarometry gives constraints averaged over longer time scales on the depths of residence in the crust of melts prior to their eruption. This article is part of the Theo Murphy meeting issue ‘Magma reservoir architecture and dynamics'.

Combining Continuous Fluid Typing, Wireline Formation Testers, and Geochemical Measurements for an Improved Understanding of Reservoir Architecture

2008 ◽  
Vol 11 (01) ◽  
pp. 27-40 ◽  
Author(s):  
Hani Elshahawi ◽  
Lalitha Venkataramanan ◽  
Daniel McKinney ◽  
Matt Flannery ◽  
Oliver C. Mullins ◽  
...  
Keyword(s):  
Reservoir Architecture

An Examination of Froude-Supercritical Flows and Cyclic Steps On A Subaqueous Lacustrine Delta, Lake Chelan, Washington, U.S.A

2015 ◽  
Vol 85 (7) ◽  
pp. 754-767 ◽  
Author(s):  
Aaron T. Fricke ◽  
Benjamin A. Sheets ◽  
Charles A. Nittrouer ◽  
Mead A. Allison ◽  
Andrea S. Ogston
Keyword(s):  
Lacustrine Delta ◽  
Supercritical Flows

Making Things Right in Development and Management of Highly Contaminated Giant Carbonate Gas Field and Returning the CO2 to Subsurface Sequestration

2021 ◽  
Author(s):  
Raj Deo Tewari ◽  
Mohd Faizal Sedaralit
Keyword(s):  
Co2 Storage ◽  
Geological Structure ◽  
Geochemical Data ◽  
Gas Field ◽  
Reservoir Architecture ◽  
Target Field ◽  
Hydrocarbon Gas ◽  
Separation Of Co2 ◽  
And Migration ◽  
And Storage

Abstract Natural gas is the noble fuel of 21st century. Consumption increased nearly 30% in last decade. Exploitation of conventional, unconventional, and contaminated gas resources are in focus to meet the demand. There are number of giant gas fields discovered worldwide and some of them with higher degree of contaminants viz. CO2, H2S and Hg. Additionally, they have operating challenges of high pressure and temperature. It becomes more complex when discovery is in offshore environment. This study presents the development and production, separation, transportation and identification & evaluation of storage sites and sequestration and MMV plan of a giant carbonate gas field in offshore Malaysia. Geological, Geophysical and petrophysical data used to describe the reservoir architecture, property distribution and spatial variation in more than 1000m thick gas bearing formation. Laboratory studies carried out to generate the rock and fluid representative SCAL (G-W), EOS and Supercritical CO2-brine relative permeability, geomechanics and geochemical data for recovery and storage estimates in simulation model and evaluating the post storage scenario. These data are critical in hydrocarbon gas prediction and firming up the number of development wells and in the simulation of CO2 storage depleted carbonate gas field. Important is to understand the mechanism in the target field for storage capacity, types of storage- structural and stratigraphic trapping, solubility trapping, residual trapping and mineral trapping. Study covers methodologies developed for minimization of hydrocarbon loss during contaminants separation and utilization of CO2 in usable products. Uncertainty and risk analysis have been carried out to have range of solution for production prediction and CO2 storage. Coupled Simulation studies predict the production plateau rate and 5 Tscf recovery separated contaminants profile and volume > one Tscf in order to have suitable geological structure for storage safely forever. Major uncertainties in the dynamic and coupled geomechanical-geochemical dynamic model has been captured and P90, P50, P10 forecast and storage rates and volumes have been calculated. Results includes advance methodologies of separation of hydrocarbon gas and CO2 like membrane and cryogenics for bulk separation of CO2 from raw gas and its transportation in liquid and supercritical form for storage. Study estimates components of sequestration mechanism, effect of heterogeneity on transport in porous media and height of stored CO2 in depleted reservoir and migration of plume vertically and horizontally. Generation of chemical product using separated CO2 for industrial use is highlighted.

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