Results of a decade-long chain drives application in Tatneft OAO

The paper sums up OAO TATNEFT ten years’ experience of commercial application of beamless drives based on reversing reducing converter mechanism (chain drives) that are used in the sucker-rod pumping units. The paper presents information about well operation conditions, production problems, as well as data on application. Results of performance analysis of statistically significant samples of difficult wells referred to different categories clearly demonstrate the actual operational advantages of chain drives. Prospective lines of development of chain drives and improvement of well performance operated by sucker-rod pumping units with chain drives are discussed.

Key words: sucker-rod pumping units, slow-speed long-stroke pumping mode, chain drives, different-parameter drives, OPEX reduction, reduction of well intervention jobs, saving of energy costs on well production lifting, prospective lines of chain drives improvement.

References

1. Valovskiy V.M., Valovskiy K.V., Tsepnye privody skvazhinnykh shtangovykh nasosov (Chain drives for downhole sucker rod pumps), Moscow: VNIIOENG Publ., 2004, 492 p.

2. RD 153–39.1–252–02, Rukovodstvo po ekspluatatsii skvazhin ustanovkami skvazhinnykh shtangovykh nasosov v OAO “Tatneft'” (Manual operation of wells by downhole sucker rod pumps units in OAO "Tatneft"), Al'met'evsk, 2002, 202 p.

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4. Pat. 2283969 RF, MPK7 F 04 B 47/02, Privod skvazhinnogo shtangovogo nasosa (The drive of downhole sucker rod pump): by Takhautdinov Sh.F., Ibragimov N.G., Fadeev V.G., Akhmetvaliev R.N., Isupov S.I., Slesarev A.D., Reutov V.B., Valovskiy V.M., Shamsutdinov I.G., Valovskiy V.M., Fedoseenko N.V.

5. Pat. 18931 The Republic of Kazakhstan, F 04 B 47/02, Privod skvazhinnogo shtangovogo nasosa (The drive of downhole sucker rod pump): Takhautdinov Sh.F., Ibragimov N.G., Fadeev V.G., Akhmetvaliev R.N., Isupov S.I., Slesarev A.D., Reutov V.B., Valovskiy V.M., Shamsutdinov I.G., Valovskiy K.V., Fedoseenko N.V.