Geological Probability of Success (POS), case study in the Late Miocene structures of the western part of the Sava Depression, Croatia

Ivšinović, Josip; Malvić, Tomislav; Velić, Josipa; Sremac, Jasenka

doi:10.1007/s12517-020-05640-z

Cited by 6 publications

(6 citation statements)

References 19 publications

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“…The POS calculation methodology for CPBS was developed by Malvić and Rusan (2009) and improved by Malvić and Velić (2015). The value of POS for the western part of the Sava Depression is 0.5625 (Ivšinović et al 2020). Modification of POS for the needs of formation water injection was made by Malvić et al (2020), in which they replaced the category "field water" with "injection of field water", and the calculated POS was 0.5625.…”

Section: Resultsmentioning

confidence: 99%

Risk and Financial Cost Management of Injection Wells in Mature Oil Fields

Ivšinović¹,

Pleteš²

2021

JRFM

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Risk and financial cost management are becoming increasingly important in the oil industry, especially in companies that have mature oil fields as assets. In such cases, risk and cost analysis are crucial to their existence. The paper analyzes the risks and costs through the modification of geological probability of success (POS) and obtaining the cost correction coefficient when planning capital investments in injection wells. Mature oil field “B” in the northern part of the Republic of Croatia was analyzed. For field “B”, these values were calculated: 0.8577 for probability of success for workovers, 0.4824 for modified POS for reservoir flooding, and 1.30 for cost correction coefficient for workovers.

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Section: Resultsmentioning

confidence: 99%

Risk and Financial Cost Management of Injection Wells in Mature Oil Fields

Ivšinović¹,

Pleteš²

2021

JRFM

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“…The IDW method is also widely used in various research areas (Achilleos, 2011;Al-Hassan & Adjei, 2015;Moeletsi et al, 2016;Tunçay et al, 2016;Ikechukwu et al, 2017;Maleika, 2020;Liu et al, 2021). In petroleum geology, IDW is used to map a small set of geological variables in the area of the Croatian Pannonian Basin System (CPBS), which has proven to be a reliable interpolation method (Ivšinović, 2018a;Malvić et al, 2019;Malvić et al, 2020;Ivšinović & Malvić, 2020). Also, this could be often applied method in mapping of hydrocarbon reservoirs worldwide (Wenli et al, 2021;Liu et al, 2020;Otchere et al, 2021) or subsurface resource in general (Busygin et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

“…The mapping can be also done with different hybrid algorithms, no using pure interpolation, but connecting points from the very dense seismic, gravimetric or similar grids (e.g., Vrdoljak et al, 2021;Lemenkova, 2021). As quality check the MA results are compared with the IDW method, which is previously proven as very reliable mapping method in the research area (Malvić et al, 2019;Ivšinović & Malvić, 2020).…”

Section: Introductionmentioning

confidence: 99%

Comparison of mapping efficiency for small datasets using inverse distance weighting vs. moving average, Northern Croatia Miocene hydrocarbon reservoir

VŠINOVIĆ¹,

MALVIĆ²

2022

Geologija

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Mapping of geological variables in the Croatian part of the Pannonian Basin System (CPBS) is mostly based on small input datasets. In the case of the analyzed hydrocarbon field "B", reservoir "K", due to the complex geological structure and pronounced tectonics, the interpretations are restricted on several blocks, where each has very limited dataset. The porosity (19 data) and permeability (18 data) variables were analyzed. The applied interpolation methods are the Inverse Distance Weighting (IDW) and the Moving Average (MA). They were compared and analyzed by visual inspection of the obtained maps, comparison of mathematical background and by calculation of cross-validation (CV). The cross-validation value for the porosity of the "K" reservoir in the case of IDW application is 0.0011, and in the case of MA 0.0010; while in the case of permeability the IDW is 480.84, and in the case of MA 1346.41. According to the visual review of maps, the values of descriptive statistics of estimated values and the results of cross-validation, the IDW method is recommended for mapping the porosity and permeability of reservoirs blocks in the Sava Depression.

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“…Most of the published papers from the CPBS present the evidence of transgressive-regressive cycles 2.4 and 2.5 (Badenian) and 2.6 (in the Sarmatian) (Figure 3) (e.g., [54,[56][57][58][59][60][63][64][65]). Hydrocarbon potential in the CPBS was studied by various authors (e.g., [10,[12][13][14]16,[69][70][71][72][73][74][75][76][77][78][79][80]), although most of the hydrocarbons accumulate within the Upper Miocene clastic reservoirs of the lacustrine origin (e.g., [73,81,82]).…”

Section: Introductionmentioning

confidence: 99%

Nearshore Pelagic Influence at the SW Margin of the Paratethys Sea—Examples from the Miocene of Croatia

et al. 2022

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(1) The ancient Paratethys Sea was a spacious inland salt-water basin, extending from the Alps, over Central Europe, to Central Asia. The southwestern part of its central area, the Croatian part of the Pannonian Basin System (CPBS), is generally known for shallow-water deposition and biota. The main purpose of this paper is to emphasize the significance of its less widespread deeper-water deposits in environmental and applied geology. (2) The authors consulted the previously published data, combined with their own results, obtained from the paleontological and sedimentological research, seismic stratigraphy and well-log analyses. (3) During our research in the CPBS, we noticed the connection between the tectonic structures and deep marine canyons and depressions within the Paratethyan shallows. Such structures can be recognized on well-logs and seismic or surface outcrops. They are situated along the faults, and deposits are characterized by the domination of pelagic over the benthic biota, sometimes with visible selective dissolution of aragonite/calcite tests. (4) Studied sedimentary sequences from these structures proved to be a precious source of data on the transgressive-regressive cycles, ancient migrations, modes of deposition and hydrocarbon formation during the Miocene Epoch in the CPBS.

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Geological Probability of Success (POS), case study in the Late Miocene structures of the western part of the Sava Depression, Croatia

Cited by 6 publications

References 19 publications

Risk and Financial Cost Management of Injection Wells in Mature Oil Fields

Risk and Financial Cost Management of Injection Wells in Mature Oil Fields

Comparison of mapping efficiency for small datasets using inverse distance weighting vs. moving average, Northern Croatia Miocene hydrocarbon reservoir

Nearshore Pelagic Influence at the SW Margin of the Paratethys Sea—Examples from the Miocene of Croatia

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