Abstract

The in-situ stress state of rock mass is described via three principal stresses; particularly, the vertical overburden stress and minimum and maximum horizontal stresses. Determination of maximum horizontal stress which is the intermediate between minimum horizontal stress and vertical overburden stress is the most challenging. Available methods to determine the magnitude of maximum horizontal stress are not always applicable due to deficiency of initial data required for estimates. For example, expensive open hole tests are often eliminated. Even when conducted, these tests do not always yield appropriate results. The paper considers the applicability of existing methods for estimation of maximum horizontal stress. Methods for estimation of maximum horizontal stress based on available data on vertical overburden stress, minimum horizontal stress and Poisson's ratio are proposed. Thus far, a systematic assessment of maximum effective horizontal stresses has never been made and no methods of stress determination have been developed for the conditions of the Romashkinskoye field.

Key words:

maximum horizontal stress, methods for estimation of horizontal stress, stress state, minimum horizontal stress, Poisson ratio, horizontal stress ratio, normal faulting regime, stress contrast, Romashkinskoye field

References

Amadei B., Stephansson O. Rock Stress and its Measurement. – London, Chapman& Hall, 1997. – 490 р. (in English)

Haimson B., Fairhurst C. In-Situ stress determination at great depth by means of hydraulic fracturing // The 11th U.S. Symposium on Rock Mechanics (USRMS), 16-19 June 1969, Berkeley, California. – P. 559-584. (in English)

Barton C.A., Zoback M.D., Burns K.L. In-situ stress orientation and magnitude at the Fenton Geothermal Site, New Mexico, determined from wellbore breakouts // Geophysical Research Letter. – 1988. – Vol. 15, Issue 5 (May). – P. 467-470. (in English)

Sand management in Bongkot field, Gulf of Thailand: an integrated approach / C.A. McPhee, Z.R. Lemanczyk, P. Helderle, D. Thatchaichawalit, N. Gongsakdi // SPE Asia Pacific Oil and Gas Conference and Exhibition, 16-18 October 2000, Brisbane, Australia. – 10 p. – SPE-64467-MS. (in English)

Stress characterization in deep boreholes using acoustoelasticity / J.A. Donald, R. Prioul, T. Lei, B.Sinha // ISRM SINOROCK, 18-20 June 2013, Shanghai, China. – 6 p. (in English)

Brady B.H., Brown E.T. Rock Mechanics for Underground Mining. – New York (USA) : Kluwer Academic Publishers, 2005. – 628 p. (in English)

Eaton B.A. Fracture gradient prediction and its application in oilfield operations // Journal of Petroleum Technology. – 1969. – Vol. 21, № 10. – P. 1353-1360. (in English)

Svidetel'stvo o gosudarstvennoj registracii programmy dlya EVM № 2020619930. Stress change / I.I. Girfanov ; pravoobladatel' Publichnoe akcionernoe obshchestvo «Tatneft'» imeni V.D. Shashina. – [The Certificate on Official Registration of the Computer Program] № 2020619206 ; zayavl. 20.08.2020 ; opubl. 26.08.2020. (in Russian)

Authors

I.I. Girfanov, Junior Research Engineer, Core Analysis, PVT and Well Testing Department, TatNIPIneft Institute–PJSC TATNEFT
32, Musa Jalil st., Bugulma, 423236, Russian Federation
E-mail: gii@tatnipi.ru

For citation:

I.I. Girfanov Opredelenie velichiny maksimal'nogo gorizontal'nogo naprjazhenija dlja terrigennyh kollektorov Romashkinskogo mestorozhdenija [Determination of maximum horizontal stress for terrigenous reservoirs of the Romashkinskoye field]. Neftyanaya Provintsiya, No. 2(26), 2021. pp. 31-42. DOI https://doi.org/10.25689/NP.2021.2.31-42 (in Russian)