The estimation of reserves and resources is one of the important tasks in the activities of any oil and gas company. The purpose of an independent estimation (audit) is to accurately report on reserves and resources in accordance with a specific classification system and applicable statutory and financial regulations. Since 2013, Zarubezhneft has been keeping records of reserves of its own assets not only according to the Russian reserves and resources classification, but it also conducts annual reserves audits according to the international SPE-PRMS classification developed by the International Society of Petroleum Engineers (SPE) and the U.S. Securities and Exchange Commission (SEC). Since 2021, the Reserves and Resources Team, which includes specialists of VNIIneft STC, performs reserves audits for the Zarubezhneft Group of Companies independently, without the involvement of international auditors. In 2021, the reserves audit was carried out for 43 fields of the Zarubezhneft Group of Companies: 27 fields in Russia, 3 fields in the Republic of Uzbekistan, 2 fields in the Arab Republic of Egypt, and 11 fields in the Socialist Republic of Vietnam. In 2022, the list of estimated assets increased up to 50 fields. Due to the increasing volume of work, there appeared a need to automate the estimation processes and reduce time costs. In 2021, the work began to create software for conducting HC reserves audits according to the international SPE-PRMS classification. At the moment, the web-based application has been tested and allows one to store the results of geological assessment in the format of volumetric tables, perform engineering calculations, and generate reporting materials.
References
1. Guidelines for application of the Petroleum Resources Management System, URL: https://millerandlents.com/wp-content/uploads/2020/03/2011-Guidelines-for-Application-of-the-PRMS.pd...
2. Petroleum Resources Management System (revised June 2018) Version 1.01, URL: https://www.spe.org/industry/docs/PRMgmtSystem_V1.01_RUS-FINAL.pdf
3. Khamitov A.T., Churanova N.Yu., Kozhemyakina I.A., Kalpakhchev N.O., Development of methodology and software for hydrocarbon reserves audit according to the international SPE-PRMS classification in the Zarubezhneft Group of Companies (In Russ.), Neftyanoe khozyaystvo = Oil Industry, 2021, no. 11, pp. 88-93,
