Neftyanaya Provintsiya
electronic peer-reviewed scholarly publication
Neftyanaya provintsiya No. 1(37), 2024

Pressure transient testing of hydraulically fractured horizontal wells

E.F. Gilfanov, T.K. Apasov


One of the most important factors affecting the oil and gas industry as the main means of increasing production from wells is hydraulic fracturing (FRACKING). It is important for successful hydraulic fracturing to conduct calibration tests of the formation and accurate calculation of filtration parameters of the development object. During the development of low-permeable reservoirs, hydraulic fracturing has become widespread. For some reasons, hydrodynamic studies of wells (GDIS) are not carried out during development and the information on the filtration properties of the formation becomes distorted after long-term operation of the well. The missing data on the filtration properties of the formation, the permeability coefficient, can be found out from the data of the formation test conducted during hydraulic fracturing. At the same time, a significant amount of data remains unclaimed during hydraulic fracturing tests
For the analysis of calibration tests, the pressure drop curve (efficiency) and the complementary analysis tool G-function are investigated. In this paper, it is proposed to use the interpretation of the G-function as additional information when interpreting the results of hydro-dynamic well studies (GDIS), the pressure recovery curve (KVD) and efficiency.

Key words:

fractured horizontal wells, hydrodynamic methods of well testing, drop curve, pressure build-up (efficiency, pressure build-up), G-function


1. Gilfanov E.F.(2020) Comparison of the reservoir properties according to the test data of the study of the pressure drop curve during hydraulic fracturing and the pressure build-up curve Geology, geophysics and development of oil and gas fields, №9, p. 105-108 (in Russian)

2. Davletbaev А., Asalkhuzina G.F., Il'yasov A.M., Makhota N.A., Nuriev А., Nazargalin E.R., Pestrikov A.V., Sergeychev A.V (2016). Analiz krivykh padeniya davleniya posle nagnetatel'nykh testov pri gidrorazryve plasta, Neftyanoe khozyaystvo, № 11, р. 41–45. (in Russian)

3. Davletbaev А., Makhota N.A., Nuriev A.Kh., Urazov R.R., Pestrikov A.V., Sergeychev A.V., (2018). Planirovanie i analiz nagnetatel'nykh testov pri provedenii gidrorazryva v nizkopronitsaemykh plastakh s primeneniem, RN- grid, Neftyanoe khozyaystvo, № 10, p. 77–83, (in Russian)

4. Urazov R.R., Maksimov A.A., Mumber P.S., Pestrikov A.V., Sergeychev A.V O preimushchestvakh primeneniya simulyatora gidroraz-ryva plasta pri analize kalibrovochnykh nagnetatel'nykh testov DFIT_mini-GRP v GS s MGRP (21-22 .11.2018), SPE Material of konference, Tyumen' (in Russian)

5. Ekonomides M.D, Olni R., Valko P. (2002) Unified Fracture Design. Bridging the Gap Between Theory and Practice, M, 221 p.

6. Salimov O.V., Salimov V.G. (2018) Osobennosti razvitiya treshchin gidro-razryva plasta na mestorozhdeniyakh Tatarstana Neftyanaya provintsiya, №1(13) URL: (in Russian) (accessed 07.07.2019)

7. Zheltov Yu.P.(1964) Gidravlicheskiy razryv plasta., M., Gostoptekhizdat. 98 p.(in Russian)

8. Ankushev Ya.E., (2018), Analiz mini-GRP pri provedenii gidrorazryva plasta, grp pri provedenii gidrorazryva plasta Dostizheniya nauki i obrazovaniya, 1(23) (in Russian) (accessed 02.02.2020)

9. Yesiltepe C. (2011) Accessed drainage volume and recovery factors of fractured horizontal wells under transient flow. A thesis submitted to the Faculty and the Board of Trustees of the Colorado School of Mines in partial fulfillment of the requirements for the degree of Master of Science, Golden, Colorado, p. 96 (in English)

10. Brown M. L. (2014), Analytical trilinear pressure transient model for multiply fractured horizontal wells in tight shale reservoirs, A thesis submitted to the Faculty and the Board of Trustees of the Colorado School of Mines in partial fulfillment of the requirements for the degree of Master of Science, Golden Colorado, 118 p. (in English)

11. Ispas I. N. (1999) A coupled model for the prediction of fluid and reservoir properties from minifrac tests A Dissertation approved for the School of petroleum and geological engineering Norman, Oklahoma, 293 p. (in English)

12. Gaol A. M. L. (2014) Interference test analysis with two fractured horizontal wells. A Dissertation approved for the School of petroleum and geological engineering of the Colorado School of Mines, Colorado, 98 p. (in English)

13. Bourdet D. (2002) Well test analysis: The use of advanced interpretation models Paris, Amsterdam, Elsevier, 439 p. Publ. (in English)

14. Frick T.P., Brand C.W., Schlager B., Economides M.J. (1996) Horizontal Well Testing of Isolated Segments, SPE J. Vol. 1,№ 3., P. 261–273. (in English)

15. Bruce R.Meyer, Lucas W.Bazan , (2010) Optimization оf Multiple Transverse Hydraulic Fractures In Horizontal Wellbores, SPE 131732, 37 p. (in English)

16. Nolte, K.G.: (1989) A General Analysis of Fracturing Pressure Decline with Applications to Three Models, SPEFE 571-583, Dec. 1986, and also Chapter 14 and Appendix J of the SPE Monograph: Recent Advances in Hydraulic Fracturing 12 p. (in English)

17. Fan, Y.: (1997) A new Interpretation for Fracture Calibration Treatments, SPE 37401, p. 107-115. (in English)

18. Joshi S. D., Joshi Ph. D. (1990) Horizontal well technology. Technologies international, Inc., Tulsa, OK, USA, p. 302. (in English)

19. McClure Mark W., Horne R. (2013) Discrete fracture network modeling of hydraulic stimulation, Heidelberg, 96 p. (in English)

20. Samaniego, F.V. and Cinco-Lay H.:(1991) Transient Pressure Analysis for Variable Rate Testing of Gas Wells", SPE 21831, p. 249-258 (in English)

21. Han Xue (2012) Permeability estimation from fracture calibration test analysis in shale and tight gas Master of science, Texas A&M University., 132 p. (in English)


E.F. Gilfanov, chief specialist, LUKOIL-Engineering Limited KogalymNIPIneft Branch Office in Tyumen
41, Republic st., Tyumen, 625000, Russian Federation

T.K. Apasov, Associate Professor of the Department of RANGM, Tyumen Industrial University
38, Volodarsky st., Tyumen, 625000, Russian Federation

For citation:

E.F. Gilfanov, T.K. Apasov Issledovaniye gorizontal'nykh skvazhin s treshchinami gidravlicheskogo razryva plasta metodami neustanovivsheysya fil'tratsii [Pressure transient testing of hydraulically fractured horizontal wells]. Neftyanaya Provintsiya, No. 1(37), 2024. pp. 74-88. 

DOI EDN GEJHFY (in Russian)

© Non-governmental organization Volga-Kama Regional Division of the Russian Academy of Natural Science, 2015-2024 All the materials of the journal are available under the Creative Commons Attribution 4.0 License (