Quantification of recoverable oil reserves in the S6, S7 and S8 sands, in the Sigmoilina zone, at the Jusepin field in the Orinoco oil and gas basin, Venezuela

ISSN 2307-2091 (Print) 

ISSN 2500-2414 (Online)

 

A. J. Rodriguez Linares, E. V. Karelina/ News of the Ural State Mining University. 2021. Issue 1(61), pp. 33-38

https://doi.org/10.21440/2307-2091-2021-1-33-38

 

Relevance of the work. Quantifying these oil reserves allows Venezuela to lead the ranking as the country with the
largest oil reserves worldwide
Purpose of the work. Is related to the need of quantification in the recoverable oil reserves in the field of Husepin
(Monagas state, Venezuela) for the oil industry.
The methodology of the research. The La Pica 01 Field is made up of 509 wells, of which 49 wells were used to elaborate
the correlations, since they have spontaneous potential and resistivity curves. For each well, the tops and bases of the
units were determined by analyzing the behavior of the electrical responses of each of the sands, applying the basic
concepts of stratigraphy, as well as a detailed compilation of all the information that corresponds to the wells that form
part of the study to obtain a standard record that contains all the favorable data and be able to carry out the correlations.
Research results. In the S6 sand, 4 oil deposits were found and an Original Oil In Place of 15,875.32 thousands of
normal barrels and recoverable reserves of 2,857. 5576 thousands of normal barrels were estimated. For S8 sand, 5 oil
fields were defined and an Original Oil In Place of 25,940.86 thousands of normal barrels and recoverable reserves of
4,669. 3548 thousands of normal barrels were estimated. Original Oil In Place was not calculated in the S7 sand because
it has no deposits.
Recommendations. Review the production history and verify which wells can be re-incorporated into an oil extraction
plan and Submit the reserves of the study fields to the Ministry of Popular Power for Energy and Petroleum (MENPET)
taking into account the results obtained in this investigation.
Conclusions. 4 oil deposits were found in the S6 sand and 5 oil deposits were found in the S8 sand and each of them were
with stratigraphic limits, structural limits and fluid contact. No oil deposits were found in the S7 sand, although records
have been taken in the northwest of the field show thicknesses of ANP at this stratigraphic level.
Keywords: oil reserves, Orinoco basin, Sigmoilina zone, well, deposit.

 

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