Search Petrowiki: Prudhoe Bay field

Prudhoe Bay field - PetroWiki

PetrowikiJune, 2022

...The Prudhoe Bay field, located on the North Slope of Alaska, is the largest oil and gas ...field in North America.[1][2][3][4][5] The main Permo-Triassic reservoir is a thick deltaic high-quality ...ut 500 ft thick with porosities of 15 to 30% BV and permeabilities ranging from 50 to 3,000 md. The field contains 20 109 bbl of oil overlain by a 35 Tcf gas cap. The oil averages 27.6 API gravity and ...

Petrowiki

Country: North America > United States > Alaska > North Slope Borough > Prudhoe Bay (1.00)

Geologic Time:

Phanerozoic > Mesozoic > Triassic (0.54)
Phanerozoic > Paleozoic > Permian (0.34)

Industry: Energy > Oil & Gas > Upstream (1.00)

Oilfield Places: North America > United States > Alaska > North Slope Basin > Prudhoe Bay Field > Ivishak Reservoir (0.99)

SPE Disciplines:

Reservoir Description and Dynamics > Reservoir Characterization (1.00)
Reservoir Description and Dynamics > Improved and Enhanced Recovery > Miscible methods (1.00)
Reservoir Description and Dynamics > Formation Evaluation & Management (1.00)
(2 more...)

Technology:

Information Technology > Knowledge Management (0.40)
Information Technology > Communications > Collaboration (0.40)

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Vertical or gravity drainage gas displacement - PetroWiki

PetrowikiJune, 2022

...d downward movement of the gas cap at each location can be stabilized. Fig. 2[2] shows views of the Prudhoe Bay oil ...field (Alaska North Slope) in which the original gas cap was offset to the northeast of most of the oil c...d over much of the downdip oil column where the hundreds of producing wells were located. Fig. 2 – Prudhoe Bay field: different natural depletion producing mechanisms in various areas of the Sadlerochit reservoir.[2]...

Petrowiki

Country: North America > United States > Alaska > North Slope Borough > Prudhoe Bay (0.51)

Industry: Energy > Oil & Gas > Upstream (1.00)

Oilfield Places: North America > United States > Alaska > North Slope Basin > Prudhoe Bay Field > Ivishak Reservoir (0.99)

SPE Disciplines:

Reservoir Description and Dynamics > Improved and Enhanced Recovery > Gas-injection methods (1.00)
Production and Well Operations (1.00)

Technology:

Information Technology > Knowledge Management (0.41)
Information Technology > Communications > Collaboration (0.41)
Information Technology > Modeling & Simulation (0.30)

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Petrophysical analysis case studies - PetroWiki

PetrowikiMay, 2022

...he complications that occur when making net-pay, porosity, and water saturation (Sw) calculations. Prudhoe Bay is the largest oil and gas ...field in North America with more than 20 billion bbl of original oil in place (OOIP) and an overlying 30 ... that a final equity determination be undertaken. In the course of this determination, an extensive field coring program was conducted, which resulted in more than 25 oil-based mud (OBM) cores being cut in...

This article presents brief summaries of detailed petrophysical evaluations of several fields that have been described in the SPE and Soc. of Professional Well Log Analysts (SPWLA) technical literature. These case studies cover some of the complications that occur when making net-pay, porosity, and water saturation (Sw) calculations. Prudhoe Bay is the largest oil and gas field in North America with more than 20 billion bbl of original oil in place (OOIP) and an overlying 30 Tscf gas cap. In the early 1980s, the unit operating agreement required that a final equity determination be undertaken. In the course of this determination, an extensive field coring program was conducted, which resulted in more than 25 oil-based mud (OBM) cores being cut in all areas of the field and some conventional water-based mud (WBM) and bland-mud cores in other wells.

Petrowiki

Country: North America > United States > Alaska > North Slope Borough > Prudhoe Bay (0.53)

Geologic Time: Phanerozoic (0.47)

Industry: Energy > Oil & Gas > Upstream (1.00)

Oilfield Places:

North America > United States > Wyoming > Greater Green River Basin > Carter Creek Field (0.99)
North America > United States > Texas > Permian Basin (0.99)
North America > United States > New Mexico > Permian Basin (0.99)
(4 more...)

SPE Disciplines:

Well Drilling > Drilling Operations > Coring, fishing (1.00)
Well Drilling > Drilling Fluids and Materials > Drilling fluid selection and formulation (chemistry, properties) (1.00)
Reservoir Description and Dynamics > Reservoir Characterization > Exploration, development, structural geology (1.00)
(3 more...)

Technology:

Information Technology > Knowledge Management (0.40)
Information Technology > Communications > Collaboration (0.40)

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Capillary pressure - PetroWiki

PetrowikiOctober, 2021

...ndary-drainage data of Fig. 10 for a rock sample (permeability 223 md, porosity 0.257) from the Prudhoe Bay field, which they identify as a mixed-wet reservoir. As is typical of mixed-wet samples, the water satura...ressure just above zero. Fig. 10 – Capillary pressure relationship for a mixed-wet sample from the Prudhoe Bay field (from Jerauld and Rathmell[9]). Use this section to list papers in OnePetro that a reader who want...

Relative permeability and capillary pressure defined capillary pressure as the difference in pressure across the interface between two phases. Similarly, it has been defined as the pressure differential between two immiscible fluid phases occupying the same pores caused by interfacial tension between the two phases that must be overcome to initiate flow. With Laplace's equation, the capillary pressure Pcow between adjacent oil and water phases can be related to the principal radii of curvature R1 and R2 of the shared interface and the interfacial tension σow for the oil/water interface: The relationship between capillary pressure and fluid saturation could be computed in principle, but this is rarely attempted except for very idealized models of porous media. Methods for measuring the relationship are discussed in Measurement of capillary pressure and relative permeability. Figure 1 shows a sketch of a typical capillary pressure relationship for gas invading a porous medium that is initially saturated with water; the gas/water capillary pressure is defined as Pcgw pg-pw.

Petrowiki

Country: North America > United States (0.31)

Industry: Energy > Oil & Gas > Upstream (1.00)

Oilfield Places:

North America > United States > South Dakota > Williston Basin (0.99)
North America > United States > North Dakota > Williston Basin (0.99)
North America > United States > Montana > Williston Basin (0.99)
North America > United States > Alaska > North Slope Basin > Prudhoe Bay Field (0.99)

SPE Disciplines:

Reservoir Description and Dynamics > Reservoir Fluid Dynamics > Flow in porous media (1.00)
Reservoir Description and Dynamics > Improved and Enhanced Recovery (1.00)

Technology:

Information Technology > Knowledge Management (0.41)
Information Technology > Communications > Collaboration (0.41)

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Kuparuk River field - PetroWiki

PetrowikiMay, 2022

...The Kuparuk River oil field is west of the supergiant ...Prudhoe Bay oil ...field on Alaska's North Slope and was discovered in 1969.[1][2][3][4] It has approximately 5.9 billion bb...

The Kuparuk River oil field is west of the supergiant Prudhoe Bay oil field on Alaska's North Slope and was discovered in 1969.[1][2][3][4] It has approximately 5.9 billion bbl of stock tank original oil in place (STOOIP) and covers more than 200 sq. The sandstone reservoir consists of two zones [A (62% of STOOIP) and C (38% of STOOIP)] that are separated by impermeable shales and siltstones. Sales oil is approximately 24 API with a viscosity at reservoir conditions of approximately 2.5 cp. The reservoir oil was approximately 300 to 500 psi undersaturated at the original reservoir pressure of approximately 3,300 psia.

Petrowiki

Country:

Europe > United Kingdom > Irish Sea > East Irish Sea > Liverpool Bay (0.76)
North America > United States > Alaska > North Slope Borough > Prudhoe Bay (0.56)

Industry: Energy > Oil & Gas > Upstream (1.00)

Oilfield Places:

North America > United States > Alaska > North Slope Basin > Prudhoe Bay Field (0.99)
North America > United States > Alaska > North Slope Basin > Kuparuk Field (0.99)

SPE Disciplines: Reservoir Description and Dynamics > Reserves Evaluation > Estimates of resource in place (1.00)

Technology:

Information Technology > Knowledge Management (0.41)
Information Technology > Communications > Collaboration (0.41)

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Lithology and rock type determination - PetroWiki

PetrowikiJune, 2022

...logs by many techniques, because shale affects the readings of most logs. The task for a particular field is to identify an evaluation technique that is reasonably accurate and as simple as possible. A met...utions[21] attempt to identify individual clay species. Nevertheless, for petrophysical studies for field development, it is the GR log that is probably used most frequently to evaluate Vsh. The GR-log rea...the reservoir is appropriately subdivided. [22][23] Fig. 5 shows the vertical zonation used for the Prudhoe Bay field's Sadlerochit reservoir. Figs. 6 through 8 are example plots based on real reservoir data that show...

Petrowiki

Country: North America > United States > Alaska (0.47)

Industry: Energy > Oil & Gas > Upstream (1.00)

Oilfield Places: North America > United States > Alaska > North Slope Basin > Prudhoe Bay Field > Ivishak Reservoir (0.99)

SPE Disciplines: Reservoir Description and Dynamics > Reservoir Characterization > Exploration, development, structural geology (1.00)

Technology:

Information Technology > Knowledge Management (0.40)
Information Technology > Communications > Collaboration (0.40)

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Connate water saturation evaluation - PetroWiki

PetrowikiJune, 2022

...Swc can then be calculated. However, the best-fit Swc result actually is determined by matching the field tracer profiles using our multilayer simulator program for the connate water test. An example of a...n profile from a SWCT test for connate water is shown in Fig. 1.[1] The target formation was in the Prudhoe Bay Field on the Alaska North Slope, US. The reactive ester injected was isopropyl acetate, which was dissolv...ed in light diesel oil. The product tracer in this case was isopropyl alchohol (IPA). Fig. 1 – Field data and simulated tracer profiles for an SWCT test for Swc. The best-fit simulation model for thi...

Petrowiki

chemical tracer, connate water, ester, evaluation, knowledge management, material-balance tracer, oil phase, PetroWiki, product alcohol, product tracer, SWCT method, SWCT test, tracer, tracer test analysis, Upstream Oil & Gas

Country: North America > United States > Alaska > North Slope Borough (0.32)

Industry: Energy > Oil & Gas > Upstream (1.00)

Oilfield Places: North America > United States > Alaska > North Slope Basin > Prudhoe Bay Field (0.99)

SPE Disciplines: Reservoir Description and Dynamics > Formation Evaluation & Management > Tracer test analysis (1.00)

Technology:

Information Technology > Knowledge Management (0.42)
Information Technology > Communications > Collaboration (0.42)

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Field applications of conformance improvement gel treatments - PetroWiki

PetrowikiJune, 2022

...This page discusses field experience in the application of various types of conformance improvement gel treatments. Fig. 1[1... to the naturally fractured Embar carbonate formation surrounding Well O-7 of the highly mature SOB field in the Big Horn basin of Wyoming. The wide variations in water/oil ratio (WOR) and oil production r...y good. Fig. 1 – Production response to the CC/AP gel treatment applied to injector O-7 in the SOB field. Fig. 2[1][3] shows seven years of incremental oil production response for the combined direct off...

Petrowiki

Country: North America > United States > Wyoming (1.00)

Industry: Energy > Oil & Gas > Upstream (1.00)

Oilfield Places:

North America > United States > Wyoming > Wind River Basin (0.99)
North America > United States > Wyoming > Wertz Field (0.99)
North America > United States > Wyoming > Bighorn Basin (0.99)
(5 more...)

SPE Disciplines:

Reservoir Description and Dynamics > Unconventional and Complex Reservoirs > Naturally-fractured reservoirs (1.00)
Reservoir Description and Dynamics > Improved and Enhanced Recovery > Waterflooding (1.00)
Reservoir Description and Dynamics > Improved and Enhanced Recovery > Conformance improvement (1.00)
Production and Well Operations (1.00)

Technology:

Information Technology > Knowledge Management (0.41)
Information Technology > Communications > Collaboration (0.41)

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Field experience with well to well tracer tests - PetroWiki

PetrowikiJune, 2022

...riginal papers should be studied to obtain a more detailed description of the programs. The Snorre field is a giant oil reservoir (sandstone) in the Norwegian sector of the North Sea. Injection water and ... the resulting tracer measurements are discussed in this page. The same tracers used in the Snorre field have been injected in the Gullfaks ...field[1] in the North Sea. The tracers identified unexpected communication paths between layers. The resu...

Petrowiki

Country:

North America > United States > Texas (0.50)
Europe > Norway > North Sea > Northern North Sea (0.35)

Industry: Energy > Oil & Gas > Upstream (1.00)

Oilfield Places:

South America > Venezuela > Eastern Venezuela Basin > Furrial Field (0.99)
North America > United States > Texas > Permian Basin > Midland Basin > Spraberry Field > Spraberry Formation (0.99)
North America > United States > Texas > East Texas Salt Basin > Fairway Field > James Lime Formation (0.99)
(13 more...)

SPE Disciplines:

Reservoir Description and Dynamics > Improved and Enhanced Recovery > Waterflooding (1.00)
Reservoir Description and Dynamics > Formation Evaluation & Management > Tracer test analysis (1.00)

Technology:

Information Technology > Knowledge Management (0.40)
Information Technology > Communications > Collaboration (0.40)

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Microscopic efficiency of waterflooding - PetroWiki

PetrowikiJune, 2022

...ge, Curve 2 represents spontaneous imbibition, and Curve 3 represents forced imbibition.[2] An oil field's initial water-/oil-saturation distribution depends on its hydrocarbon history and has a significa...arbon or structural history. Portions of several west Texas San Andres carbonate reservoirs and the Prudhoe Bay field of Alaska are examples of such oil fields. This original water-/oil-saturation distribution is imp...he best approximation of reservoir conditions. Salathiel describes the importance of this to actual field oil/water displacement.[3] Fig. 10 shows the results of Salathiel's laboratory experiments that rel...