Key words: jet pump, ejector, head ratio, flow ratio.
The article considers the main purpose of jet pumps in the construction of oil and gas wells, namely, the increase in ROP. It is noted that the main drawback of the existing ejection systems associated with significant hydraulic losses in the working nozzle jet pump. On the basis of the analysis proposed device is designed for drilling wells, which reduces the load on the mud pumps in use, and also provides an opportunity to work with jetting bits.
References
1. Sazonov Yu.A., Razrabotka ustroystva, snizhayushchego differentsial'noe davlenie na zaboe skvazhiny i povyshayushchego skorost' bureniya (Development of the device, reducing the differential pressure on the bottom hole and increasing the speed of drilling): Thesis of candidate of technical sciences, Moscow, 1989, 176 p.
2. Kamenev P.N., Gidroelevatory v stroitel'stve (Hydraulic elevator in the building), Moscow: Stroyizdat Publ., 1970, 416 p.
3. Kirilovskiy Yu.L., Podvidz L.G., Trudy VIGM, 1960, V. 26, pp. 96-135.
4. Sokolov E.Ya., Zinger N.M., Struynye apparaty (Fluidjet machines), Moscow: Energiya Publ., 1970, 288 p.
5. Bykov I.Yu., Kuk'yan A.A., Geologiya, geofizika i razrabotka neftyanykh i gazovykh mestorozhdeniy, 2002, no., pp. 38-40.
6. Glebov V.A., Antonov V.F., Burenie, 1968, no.3, pp. 25-27.
7. Mavlyukov M.R., Skvortsov Yu.P., Logunov V.P., et al., Neftyanoe khozyaystvo – Oil Industry, 1998, no. 5, pp. 39-40.
8. Patent 2020292 RF, MPK5 F04F5/10, Naddolotnyy ezhektornyy nasos (Above-bit ejector pump), autor Evstifeev S.V.
9. Sultanov B.Z. Upravlenie ustoychivost'yu i dinamikoy buril'noy kolonny (Management stability and dynamics of the drillstring), Moscow: Nedra Publ., 1991, 208 p.
