Problem of efficiency of low-productivity carbonate reservoir development on example of Turnaisian stage of Tuymazinskoye field

Authors: R.F. Yakupov (Oil and Gas Department Tuymazaneft, RF, Oktyabrsky), V.Sh. Mukhametshin (Ufa State Petroleum Technological University, RF, Ufa)

Key words: carbonate reservoir, spot waterflooding, permeability, recovery, hydrodynamic interaction, acid treatment, near-wellbore zone, well re-perforation, diversion to injection.

The authors analyzed efficiency of reserves development and identified peak value residue stock zones. Estimated potential of put into production for approx. 500 transition wells never exploited for Turnaisian layers. Through thorough analysis of result of well tests current injection zones and injection test area determined effects of injection wells on production wells which is 350m away. The article identifies most efficient treatment technique: acid treatments, re-perforation combined with acid and polymer reservoir isolation treatment. On the basis of idle wells the authors formed program of well diversion onto production and injection well stock.

References
1. Baymukhametov K.S., Enikeev V.R., A.Sh. Syrtlanov, F.M. Yakupov, Geologicheskoe stroenie i razrabotka Tuymazinskogo mestorozhdeniya (Geological
structure and development of Tuimazy field), Ufa: Kitap Publ., 1993, 280 p.
2. Baymukhametov K.S., Viktorov P.S., Gaynullin K.Kh., Syrtlanov A.Sh., Geologicheskoe stroenie i razrabotka neftyanykh i gazovykh mestorozhdeniy
Bashkortostana (Geological structure and development of oil and gas fields in
Bashkortostan), Ufa: Publ. of RITs ANK “Bashneft'”, 1997, 424 p.
3. Muslimov R.Kh., Ramazanov R.G., Abdulmazitov R.G., Neftyanoe khozyaystvo
– Oil Industry, 1987, no. 10, pp. 14-18.
4. Mukhametshin V.Sh., Povyshenie effektivnosti zavodneniya slozhnopostroenykh
nizkoproduktivnykh zalezhey nefti (Improving the efficiency of
flooding of low productivity complex oil deposits), Ufa: Publ. of USPTU, 2005, 77 p.
5. Zeygman Yu.V., Mukhametshin V.V., Obobshchenie opyta zavodneniya zalezhey vysokovyazkoy nefti v karbonatnykh kollektorakh s tsel'yu povysheniya
effektivnosti vozdeystviya na plast (Summarizing the experience of flooding of
viscous oil deposits in carbonate reservoirs in order to increase the effectiveness
reservoir stimulation), Ufa: Publ. of USPTU, 2009, 138 p.
6. Mukhametshin V.Sh., Neftegazovoe delo – Oil and Gas Business, 2011, V.9, no. 4, pp. 47-50. 

Key words: carbonate reservoir, spot waterflooding, permeability, recovery, hydrodynamic interaction, acid treatment, near-wellbore zone, well re-perforation, diversion to injection.

The authors analyzed efficiency of reserves development and identified peak value residue stock zones. Estimated potential of put into production for approx. 500 transition wells never exploited for Turnaisian layers. Through thorough analysis of result of well tests current injection zones and injection test area determined effects of injection wells on production wells which is 350m away. The article identifies most efficient treatment technique: acid treatments, re-perforation combined with acid and polymer reservoir isolation treatment. On the basis of idle wells the authors formed program of well diversion onto production and injection well stock.

References
1. Baymukhametov K.S., Enikeev V.R., A.Sh. Syrtlanov, F.M. Yakupov, Geologicheskoe stroenie i razrabotka Tuymazinskogo mestorozhdeniya (Geological
structure and development of Tuimazy field), Ufa: Kitap Publ., 1993, 280 p.
2. Baymukhametov K.S., Viktorov P.S., Gaynullin K.Kh., Syrtlanov A.Sh., Geologicheskoe stroenie i razrabotka neftyanykh i gazovykh mestorozhdeniy
Bashkortostana (Geological structure and development of oil and gas fields in
Bashkortostan), Ufa: Publ. of RITs ANK “Bashneft'”, 1997, 424 p.
3. Muslimov R.Kh., Ramazanov R.G., Abdulmazitov R.G., Neftyanoe khozyaystvo
– Oil Industry, 1987, no. 10, pp. 14-18.
4. Mukhametshin V.Sh., Povyshenie effektivnosti zavodneniya slozhnopostroenykh
nizkoproduktivnykh zalezhey nefti (Improving the efficiency of
flooding of low productivity complex oil deposits), Ufa: Publ. of USPTU, 2005, 77 p.
5. Zeygman Yu.V., Mukhametshin V.V., Obobshchenie opyta zavodneniya zalezhey vysokovyazkoy nefti v karbonatnykh kollektorakh s tsel'yu povysheniya
effektivnosti vozdeystviya na plast (Summarizing the experience of flooding of
viscous oil deposits in carbonate reservoirs in order to increase the effectiveness
reservoir stimulation), Ufa: Publ. of USPTU, 2009, 138 p.
6. Mukhametshin V.Sh., Neftegazovoe delo – Oil and Gas Business, 2011, V.9, no. 4, pp. 47-50. 


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