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Showing 1 to 20 of 23 for “"Carbonate reservoir"”.
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Geomechanical characterizations and correlations to reduce uncertainties of carbonate reservoir analysis
<p>"Although carbonate reservoirs hold a wealth of hydrocarbon, they are among the most difficult types of reservoirs to be characterized. Carbonate reservoirs by nature have complex depositional environments and diagenetic processes in which brittle, ductile, fractured rocks, and vugular pores may …
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Evaluation of alkali flooding combined with intermittent flow in carbonate reservoir
The majority of carbonate reservoir is oil-wet, which is an unfavorable condition for oil production. Generally, the total oil recovery after both primary and secondary recovery in an oil-wet reservoir is low. The amount of producible oil by enhanced oil recovery techniques is still large. Alkali …
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Characterization of a San Andres carbonate reservoir using four dimensional, multicomponent attribute analysis
Includes bibliographical references (pages 70-72).
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A streamline model application for the waterflood performance of NZ-OF-HRL carbonate reservoir
The NZ-OF-HRL Carbonate reservoir had produced only 3.07 per cent of the oil in place, mainly by internal gas drive, when the pressure had declined from the original pressure of 4,781 psig to 4,009 psig to 8,750 feet. As a result of such rapid change in pressure and due to the fact that energy …
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Application of surfactant-polymer enhanced oil recovery in a high- salinity, high-temperature carbonate reservoir
… increases, and the discovery of new conventional reservoirs diminishes, the need of using enhanced oil recovery (EOR) methods, such as chemical flooding, grows. A widely used type of chemical EOR is surfactant-polymer flooding (SP). In SP flooding, a surfactant reduces the interfacial tension …
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Investigating and modeling tar-mats in a Kuwaiti carbonate reservoir and their role in understanding oil reserves and recovery economics
<p>"Tar-mat columns exist in many carbonate reservoirs in the Middle East. Historically, tar-mats have been thought to impede primary oil extraction, thus necessitating further improved oil recovery (IOR) technology applications. However, this research considers tar-mats as potential sources for …
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History matching sensitivity investigations and forecasting for low matrix porosity, permeability and highly fractured carbonate reservoir to optimize oil production in Kurdistan Region
… of the oil recovery is an essential task of the reservoir engineers. Many highly fractured carbonate reservoirs with low matrix porosity and low matrix permeability in the world have been depleted with low ultimate recovery due to the improper management. To obtain higher oil recovery and an …
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Investigation of time-lapse 4D seismic tuning and spectral responses to CO₂-EOR for enhanced characterization and monitoring of a thin carbonate reservoir
… success of time-lapse (4D) seismic monitoring of carbonate reservoirs is limited by these systems’ inherent heterogeneity and low compressibility relative to siliciclastic systems. To contribute to the advancement of 4D seismic monitoring in carbonates, an investigation of amplitude envelope …
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Geology of Sub-Salt Carbonate Rocks in the Rozhkovsky Structure, Northern Precaspian Basin, Kazakhstan: Implications for the Formation of Carbonate Reservoir in a Relatively Closed Diagenetic System
Sub-salt carbonate successions in the Precaspian Basin host several world-famous oil/gas fields along the basin margin. The Early Carboniferous Sub-salt carbonate rocks are associated with the Rozhkovsky structure near the northern margin of the Precaspian Basin. These carbonate successions are …
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An improved approach for quantifying the impact of geological uncertainty and modelling decisions on static and dynamic reservoir models - a case study from a giant fractured carbonate reservoir
Carbonate reservoirs hold more than 60% of the world's oil and 40% of the world's gas reserves. These reservoirs are characterised by geological heterogeneity, petrophysical complexity, presence of naturally fractures, and mixed wettability, all of which contribute to significant uncertainty in …
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Recovery Strategies and Flow Modeling in Fractured Grosmont Carbonates with High Permeability Conduits
Grosmont is a large carbonate reservoir with 407 billion barrels of bitumen in place. However, it has not been commercially developed currently due to its extremely heterogeneous environment with various porosity types. A 3D heterogeneous carbonate model with high permeability conduits representing …
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Facies, Sequence Framework, and Evolution of Rudist Buildups, Shu'aiba Formation, Saudi Arabia
… by 12 km wide and 150 m thick, and is a giant carbonate reservoir. It formed on a regional carbonate ramp bordering an intrashelf basin. The succession consists of a composite sequence of seven high frequency sequences. Sequences 1 and 2 formed a deeper open platform of …
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Simulating complex conductivity in carbonate rocks: using digital carbonate rocks and comparison to laboratory measurements
… insight into understanding properties of reservoir rocks, and help reveal the link between intrinsic rock properties and macroscopic geophysical responses. Our focus is the simulation of the complex conductivity of carbonate reservoir rocks using reconstructed 3D rock structures from …
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Integrated geological and petrophysical investigation on carbonate rocks of the middle early to late early Canyon high frequency sequence in the Northern Platform area of the SACROC Unit
The SACROC unit is an isolated carbonate platform style of reservoir that typifies a peak icehouse system. Icehouse carbonate platforms are one of the least well understood and documented carbonate reservoir styles due to the reservoir heterogeneities they embody. The current study is an attempt to …
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Acid Fracture and Fracture Conductivity Study of Field Rock Samples
… varying acid solubility. Six rock samples from a carbonate reservoir were labeled A through F to protect proprietary information included in this research. A 2% potassium chloride solution was used for the acid system and fracture conductivity measurements to prevent clay swelling. Injection …
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Geomechanical impact of bio-competitive exclusion chemical on reservoir rocks.
… nitrates as an oilfield chemical to treat reservoir souring and control the activities of sulfate-reducing bacteria. Because of its flexibility and extensive use in oil production, this oilfield treatment method has been regarded as a more cost-effective and environmentally friendly …
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Oil Potential of Middle Cretaceous Tight Carbonate in Mexico
… investigates a tight overpressured Cretaceous carbonate formation in Field A of Mexico. The Cretaceous carbonate was penetrated by well A1 and tested oil successfully during an open-hole test covering interval 5356 to 5515 m (MD) that produced oil of 33 degrees API. Initial pressure was 1050 …
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Subsurface stratigraphy and petrology of a cool-water carbonate fracture reservoir - the mid-tertiary Tikorangi Formation, Taranaki Basin, New Zealand
… Zealand’s only commercially-producing fractured-carbonate reservoir, but is poorly understood in a stratigraphic-sedimentological-diagenetic context. Based on correlation between laboratory and geophysical well log data a carbonate facies-based lithostratigraphy has been established for the first …
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Stratigraphic Analysis of the Capps Limestone in the North Norton Oil Field in Runnels County, Texas
… Member of the Mineral Wells Formation is a carbonate reservoir located in North Central Texas. It consists of interbedded limestone, sandstone, and shale units. Much of the Capps Limestone exists in the subsurface of Brown, Coleman, Runnels, Coke, Nolan, and Taylor counties, however, the …
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