Study on acoustic logging response of fractured reservoirs using a novel equivalent medium model

• Autorzy: Wang Bing , Li Wei , Lu Jing , Jin Wujun , Hu Song

Identyfikatory

DOI

10.1007/s11600-022-00876-7

• Języki publikacji: EN

Abstrakty

EN

Acoustic logging is one of the most effective methods for fractured reservoirs exploration. To understand the measurement characteristics of fractured reservoirs is the key procedure to evaluate the reservoir using acoustic logging data. By combing the Hudson equivalent theory and the Schoenberg’s theory, a novel acoustic equivalent medium theory of fracture reservoir was constructed. Bond transformation is introduced to model fractures with arbitrary azimuth and polarizing angle. The response of fractured reservoir measured by acoustic logging tool is simulated using a finite difference code. The influences and acoustic responses from crack density, width, angle and filling material on compressional and shear wave slowness of acoustic waves are analyzed and summarized. The analysis results can provide a theoretical foundation for evaluations of fractured formations with acoustic logging data.

Słowa kluczowe

EN

acoustic logging; fractured reservoirs; fracture equivalent medium model; evaluation of fractured formation

PL

profilowanie akustyczne; złoża szczelinowate

• Wydawca: Instytut Geofizyki PAN ; Springer
• Czasopismo: Acta Geophysica
• Rocznik: 2022
• Tom: Vol. 70, no 6
• Strony: 2695--2704
• Opis fizyczny: Bibliogr. 15 poz.

Twórcy

autor

Wang Bing

• State Energy Center for Shale Oil Research and Development, China University of Petroleum, Beijing, China

• https://orcid.org/0000-0003-3419-6315

autor

Li Wei

• Beijing Research Center, Aramco Asia, Beijing, China

autor

Lu Jing

• Petroleum Exploration and Production Research Institute, SINOPEC, Beijing, China

autor

Jin Wujun

• Petroleum Exploration and Production Research Institute, SINOPEC, Beijing, China

autor

Hu Song

• Petroleum Exploration and Production Research Institute, SINOPEC, Beijing, China

Bibliografia

• 1. Cao F (2015) The acoustic parameters experimental research of fractured rocks and the log evaluation of fractured reservoirs. Dissertation, Jilin University, China
• 2. Gong D, Zhang CG (2013) Study on acoustic logging simulation response of fractured tight sandstone reservoir. J Oil Gas Technol 35(7):82–86
• 3. Hudson JA (1980) Overall properties of a cracked solid. Math Proc Camb Philos Soc 88(2):371–384
• 4. Hudson JA (1981) Wave speeds and attenuation of elastic waves in material containing cracks. Geophys J R Astronauts Soc 64(1):133–150
• 5. Jun T, Zhang CG, Yi X (2017) A fracture evaluation by acoustic logging technology in oil-based mud: A case from tight sandstone reservoirs in Keshen area of Kuqa Depression, Tarim Basin, NW China. Pet Explor Develop 44(3):418–427
• 6. Li J, Innanen KA, Tao G et al (2017) Wavefield simulation of 3D borehole dipole radiation. Geophysics 82(3):D155–D169
• 7. Liu E, Zeng XW (2001) Effective elastic constant of fractured medium. Oil Geophys Prospect 36(1):37–44
• 8. Schoenberg M (1980) Elastic wave behavior across linear slip interfaces. J Acoust Soc Am 68(5):1516–1521
• 9. Schoenberg M, Douma J (1988) Elastic wave propagation in media with parallel fractures and aligned cracks. Geophys Prospect 36(6):571–590
• 10. Schoenberg M, Sayers CM (1995) Seismic anisotropy of fractured rock. Geophysics 60(1):204–211
• 11. Tang XM, Chen XL, Xu XK(2012) A cracked porous medium elastic wave theory and its application to interpreting acoustic data from tight formations. Geophysics 77(6):245–252
• 12. Thomsen L (1995) Elastic anisotropy due to aligned cracks in porous rock. Geophys Prospect 43(6):805–829
• 13. Yan WC, Liu SX, Chang XH, Ran LM, Zhao YG, Li JW (2021) Influence of fracture width on borehole radar response. Glob Geol 24(2):111–118
• 14. Yue CW, Wang F (2016) The simulation of acoustic wave propagation in the borehole surrounded by vertical transversely isotropic (VTI) media using staggered-grid high-order finite-difference method. Coal Geol Explor 44(4):125–131
• 15. Zhao HB, Wang XM (2008) An optimized staggered variable grid finite difference scheme and its application in cross-well acoustic survey. Chin Sci Bull 52(12):1387–1395

Uwagi

PL

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).