Geostatistical evaluation of well logs in reservoir charachterization in Azeri-Chirag-Guneshli field

Download

index.pdf

Date

2013

Author

Rzazade, Rahim

Metadata

Show full item record

Item Usage Stats

187
views

250
downloads

The Azeri-Chirag-Guneshli (ACG) field is situated offshore of Caspian Sea Azerbaijan sector. It is an elongated anticline in structure and the reservoir section consists of mainly sandstone. Recoverable reserves are calculated to be 5.4 bbl of oil (Binyatov 2008). Sedimentary environment corresponding to this region is mainly fluvio-deltaic. The main aim of this study is to obtain better understanding of two main prolific hydrocarbon reservoir Pereriv B and Pereriv D by integration of well logs and core data. Moreover, flow unit determination was also very important point of this study. The work represents a petrophysical-based method that uses well loggings and core plug data to delineate flow units within the most productive sandstone reservoir in Azeri-Chirag-Guneshli field. Nine wells are avaliable for this work and 6 of them have core data.Geostatistical methods such as histogram analsis and principal component analysis have been used for each formation. Based on well log data petrophysical parameters such as porosity, volume of shale, saturations have been estimated and they are integrated with core plug data. From the well logs it was obtained that the both Pereriv B and Pereriv D formations have high NTG ratio.Moreover, one flow unit have been determined within a Pereriv B formation based on core data such as porosity, permeability and proe throart size. These parameters was observed to be high in flow unit. Moreover, histogram and Principal Component Analysis showed that Pereriv B and Pereriv D formations are similar to each other. Although the statistical methods could not find any new flow unit but the studies gave a good result in comparision of two different formations.

Subject Keywords

Oil wells., Oil well logging., Oil reservoir engineering., Geology

URI

http://etd.lib.metu.edu.tr/upload/12616094/index.pdf
https://hdl.handle.net/11511/22676

Collections

Graduate School of Natural and Applied Sciences, Thesis

Suggestions

OpenMETU
Core

Sedimentological, cyclostratigraphic analysis and reservoir characterization of Balakhany X Formation within the productive series Azeri Field on C01 well (Offshore Azerbaijan) Binyatov, Elnur; Yılmaz, İsmail Ömer; Department of Geological Engineering (2008) The Azeri, Chirag, Gunashli (ACG) field is located offshore Azerbaijan. The reservoirs are multilayered sandstones forming traps within a major anticlinal structure. Proven crude oil reserves are estimated to contain 5.4 billion barrels of oil. In the past this area has been studied in regional detail but not at the reservoir scale with respect to the fluvio-deltaic sediments filling the northern shore of the ancient South Caspian Sea. The aim of this study is carried out the sedimentological, cyclostratigr...
Geological considerations for the economic evaluation of oil shale deposits in Turkey Şener, Mehmet; Şengüler, Ilker; Kök, Mustafa Verşan (Elsevier BV, 1995-7) Geological information is given on four oil shale fields in middle and western Anatolia: Himmetoǧlu, Seyitömer, Beypazari{dotless} and Hati{dotless}ldaǧ. Some petrological, geochemical, Fischer assay and fluidized bed combustion test results for the oil shales are also presented. As a result of economic evaluation, it was concluded that Himmetoǧlu oil shale is the most appropriate for domestic and industrial utilization.
Geothermal Resource Assessment of Alasehir Geothermal Field Akın, Serhat (2017-02-15) Alaşehir geothermal area located in Alaşehir Graben, West Anatolia – Turkey is the current target for geothermal field development. Currently, more than 6 operators are developing the power capacity in this field on a strictly competitive, and largely confidential, basis without significant exchange of resource information among them. Although there are three binary and a combined flash-binary power plants with widely changing power generation efficiency between plants, additional new plant capacity will be...
Characterization of the Karababa-C reservoir in the South Karakus oilfield, southeast Turkey Ulu, M; Karahanoğlu, Nurkan (1998-12-01) The South Karakus oil field is located in southeast Turkey, and produces, from the Late Cretaceous Mardin Group, carbonate reservoirs consisting of the Karababa, Derdere, Sabunsuyu and Areban Formations. The Karababa Formation is divided into three members, of which the productive Karababa-C member, discussed here, is composed of shallow marine bioclastic mudstone to wackestone. It is affected by early to late diagenetic processes that caused modification of the original pore system by cementation, dissolut...
Time Series Modeling and Drought Frequency Analysis for the Annual Rainfall of North Cyprus Yücel, Nazlıcan; Akıntuğ, Bertuğ; Sustainable Environment and Energy Systems (2021-9) Cyprus which is the third biggest island in the Mediterranean Sea is located in the south of Turkey. The island has a semi-arid climate The rainfall is the main source of the island, therefore, the analysis of existing rainfall data across the island has vital importance for a better sustainable water resource management. In this study, annual rainfall data of 33 meteorological stations across North Cyprus were used. The main objectives of the study are modeling the annual observed rainfall of North Cyprus ...

Citation Formats

R. Rzazade, “Geostatistical evaluation of well logs in reservoir charachterization in Azeri-Chirag-Guneshli field,” M.S. - Master of Science, Middle East Technical University, 2013.