Using of stochastic methods for evaluation of hydrocarbon accumulation in terrigenous deposits on JV Vietsovpetro’s oil fields

Author(s):  
A.N. Ivanov ◽  
◽  
А.G. Ryumkin ◽  
M.A. Fedoseev ◽  
Nguyen Quynh Huy ◽  
...  
2021 ◽  
pp. 4779-4790
Author(s):  
Marwa H. Shehab ◽  
Kamal K. Ali

     A seismic study was conducted to re-interpret the Qasab and Jawan Oil fields in northwestern Iraq, south of the city of Mosul, by reprocessing many seismic sections of a number of field surveys by using the Petrel software. Two reflectors, represented by the Hartha formation, deposited during the Cretan age, and the Euphrates formation, formed during the Tertiary age, were delineated to stabilize the structural picture of these fields. The stratigraphic study showed that the Qasab and Jawan fields represent areas of hydrocarbon accumulation. Seismic attribute analysis showed low values of instantaneous frequency in the areas of hydrocarbon accumulation. Instantaneous phase was used to determine the limits of the sequence, the nature of sedimentation, and the type of vanishing, i.e. onlap vs. toplap. Low instantaneous amplitude values were recorded, indicating hydrocarbon reservoirs in the studied area. Various other seismic stratigraphic features were studied , including the distribution mound, flat spot, and channels in the two formations, but they were discontinuous because of the tectonic effects. These activities explain reasonably the distribution of hydrocarbons in the studied area.


2015 ◽  
Vol 55 (2) ◽  
pp. 463
Author(s):  
Tehani Kuske ◽  
Steven le Poidevin ◽  
Dianne Edwards

The Browse Basin lies offshore from WA’s Kimberley region and hosts vast accumulations of natural gas, some are rich in condensate, making it Australia’s next major gas producing province on the North West Shelf. It is estimated that the Ichthys gas accumulation contains 12.8 trillion cubic feet (Tcf) of gas and 527 million BBL of condensate, and represents the largest hydrocarbon accumulation with recoverable liquids found in Australia since the discovery of the Gippsland Basin and Barrow Island oil fields in the 1960s. Similar amounts of gas, albeit drier (CGR 20–30 BBL/MMscf) are hosted within the Brecknock, Calliance and Torosa accumulations (cumulative of 15.9 Tcf gas and 436 million BBL condensate). For this reason, the Browse Basin continues to be a focus of exploration, in which both international companies and Australian explorers are capitalising on LNG opportunities. This extended abstract provides a summary of hydrocarbon accumulations encountered in the Browse Basin (up until late 2014). Accumulations discovered in the Browse Basin include: Abalone, Adele, Argus, Bassett, Torosa, Brecknock and Calliance, Ichthys, Concerto, Mimia, Burnside, Caspar, Caswell, Columba, Cornea, Focus, Sparkle, Crux (including Libra), Hippolyte, Echuca Shoals, Gwydion, Marabou, Poseidon (including Kronos, Boreas, Zephyros and Poseidon North), Crown (including Proteus and Pharos), Psepotus and Lasseter. The authors provide a summary of the regional geology, evolution and tectonic development of the basin, and discuss the hydrocarbon reserves and hydrocarbon potential of the basin. This provides a guide to assist potential future exploration programs in the Browse Basin.


1917 ◽  
Vol 83 (2147supp) ◽  
pp. 120-121
Author(s):  
O. R. Geyer
Keyword(s):  

KURVATEK ◽  
2017 ◽  
Vol 1 (2) ◽  
pp. 21-31
Author(s):  
Fatimah Miharno

ABSTRACT*Zefara* Field formation Baturaja on South Sumatra Basin is a reservoir carbonate and prospective gas. Data used in this research were 3D seismik data, well logs, and geological information. According to geological report known that hidrocarbon traps in research area were limestone lithological layer as stratigraphical trap and faulted anticline as structural trap. The study restricted in effort to make a hydrocarbon accumulation and a potential carbonate reservoir area maps with seismic attribute. All of the data used in this study are 3D seismic data set, well-log data and check-shot data. The result of the analysis are compared to the result derived from log data calculation as a control analysis. Hydrocarbon prospect area generated from seismic attribute and are divided into three compartments. The seismic attribute analysis using RMS amplitude method and instantaneous frequency is very effective to determine hydrocarbon accumulation in *Zefara* field, because low amplitude from Baturaja reservoir. Low amplitude hints low AI, determined high porosity and high hydrocarbon contact (HC).  Keyword: Baturaja Formation, RMS amplitude seismic attribute, instantaneous frequency seismic attribute


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