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Petroleum reservoir

About: Petroleum reservoir is a research topic. Over the lifetime, 5403 publications have been published within this topic receiving 83535 citations. The topic is also known as: petroleum deposit.


Papers
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Journal ArticleDOI
TL;DR: In this article, the authors provided a thorough petrophysical characterization in laboratory by measuring density, porosity, VP and VS of a bitumen carbonate reservoir rock outcropping in the Majella Mountain (Central Italy).

20 citations

Journal ArticleDOI
Zifei Fan1, Li Kongchou1, Jianxin Li1, Heng Song1, Ling He2, Ling He1, Xuelin Wu1 
TL;DR: In this article, the combination pattern of different voids and the relationship between porosity and permeability, carbonate reservoirs are classified into four types which are fracture-cavity-pore typed (referred to as composite typed here after), fracture-pores typed, pore typed and fracture typed, and the identification of which by well logging data is realized.

20 citations

DOI
01 Feb 2022
TL;DR: In this paper, the authors studied the reservoir quality of the Albian-Cenomanian reservoir of the Ivorian sedimentary basin, which consists mainly of conglomeratic, pebbly and very fine to coarse-grained sandstones.
Abstract: The Albian-Cenomanian reservoirs of the Ivorian sedimentary basin consist mainly of conglomeratic, pebbly, and very fine to coarse-grained sandstones. In the present study, the lithologic composition, flow and storage capacities, and reservoir quality parameters were studied in detail. Some fresh, clean and non-fractured samples were selected representative from FE-1 well in the depocenter of the basin, FE-2 well to the west, and FE-3 well to the east of the basin. Lithologic studies indicated that heterogeneity increases greatly to the east due to the implementation of diagenetic factors including cementation, silicification, authigenic clay minerals, and compaction. Though of the dominant reservoir quality-reducing factors, to the east, the reservoir quality increases due to increasing the grain size and the interstitial pore types. Porosity and permeability of samples were estimated by helium and nitrogen injection, respectively, whereas the reservoir quality was measured using different techniques, e.g., the FZI (flow zone indicator), the RQI (reservoir quality index), the effective pore radius (R35) of Winland, and the DRT (discrete rock type). The reservoir quality properties declared that the present plug samples can be clustered into six RRTs (reservoir rock types), with increasing reservoir quality from RRT6 (conglomeratic sandstone lithofacies) to RRT1 (deformed sandstone lithofacies).

20 citations

Proceedings ArticleDOI
01 Jan 1988
TL;DR: In this article, a large number of laboratory tests have been run under simulated reservoir conditions to provide a description of the mechanical properties of this chalk, including porosity and quartz content, and the dependence of compaction on these was determined.
Abstract: The subsidence occurring in the Ekofisk field originates from the compaction of the reservoir rock due to the increasing stress placed upon it as reservoir pressure is reduced with production from the field. The mechanical properties of the reservoir rock determine how much compaction will take place for given conditions in the field and are therefore a key factor in determining the degree to which subsidence will occur. These mechanical properties can be combined with other reservoir information (pressure, overburden load, structure, etc.) in simulators to predict the amount of compaction and surface subsidence that will occur in the life of the field. For this to be done accurately, there must be sufficient information to describe the compaction behaviour of all the rock within the reservoir for all conditions encountered. The Ekofisk reservoir consists largely of chalk, a very fine-grained, high porosity, mechanically weak rock. A large number of laboratory tests have been run under simulated reservoir conditions to provide a description of the mechanical properties of this chalk. Stress states were applied to reservoir chalk samples to duplicate those encountered in the field, and the resulting compaction was measured. At low stress the chalk compacts elastically with moderate compressibility, but at the higher stress levels encountered in the field during production large amounts of plastic deformation occur. Basic mechanisms of chalk compaction were examined to provide better understanding of the chalk behaviour. The chalk properties that primarily influence compaction were identified as porosity and quartz content; the dependence of compaction on these was determined to provide a description of all the chalk within the reservoir. Time dependence of chalk compaction was studied so that laboratory results could be properly applied to the production life of the field. The influence of the waterflooding of the Ekofisk reservoir on the strength of the chalk was studied and found to have no effect.

19 citations

Journal ArticleDOI
TL;DR: The Tucumcari basin of east-central New Mexico is a structural depression that existed as a depositional basin from Strawn (Middle Pennsylvanian) until late Wolfcampian (Early Permian) time.
Abstract: The Tucumcari basin of east-central New Mexico is a structural depression that existed as a depositional basin from Strawn (Middle Pennsylvanian) until late Wolfcampian (Early Permian) time. Depth to Precambrian ranges from 6500 ft to more than 9000 ft. High-angle faults form the north, east, and west edges of the basin. No major structural discontinuities separate the basin from a shallow shelf to the south. Faults cut Pennsylvanian and Wolfcampain strata but generally do not offset post-Wolfcampian strata. Faults and regional structure control facies and thickness patterns within the Pennsylvanian and Wolfcampian. Coarse arkosic sands in the Pennsylvanian and Wolfcampian are good reservoirs. Those sands were deposited in northern and western parts of the basin and were derived from highlands of Precambrian granitic rocks that formed the northern and western margins of the basin. High-energy limestones are possible reservoirs in the southern part of the basin. Porous Wolfcampian dolostones cover the Frio uplift on the east side of the basin. Pennsylvanian and Wolfcampian marine shales and micritic limestones are source rocks within the Tucumcari basin. Post-Wolfcampian strata are thermally immature. Two presently noncommercial pools of oil and gas, the Latigo Ranch pool and the T-4 Ranch pool, have been discoveredmore » in Strawn sands in the northern part of the Tucumcari basin. Oil generated in the upper Paleozoic has migrated vertically into the Triassic; two oil accumulations, the Santa Rosa tar sands and the Newkirk oil pool, are in Triassic sandstones and have combined reserves of 153 million bbls of oil.« less

19 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202336
202280
2021172
2020179
2019242
2018212