Tubingless well operation using electrical submersible pump

UDK: 622.276.53.054.23:621.67-83

DOI: 10.24887/0028-2448-2020-7-60-63

Key words: ubingless well operation, logging hoist, hoisting crane, wireline, cost reduction, decrease of water cut

Authors: K.M. Garifov (TatNIPIneft, RF, Bugulma), A.Kh. Kadyrov (TatNIPIneft, RF, Bugulma), A.V. Glukhoded (TatNIPIneft, RF, Bugulma), I.N. Rakhmanov (TatNIPIneft, RF, Bugulma), P.S. Archibasov (TatNIPIneft, RF, Bugulma), I.F. Galimov (Oil and Gas Production Department Leninogorskneft, RF, Leninogorsk), F.Z. Ismagilov (Tatneft PJSC, RF, Almetyevsk), S.V. Lyubetskiy (Tatneft PJSC, RF, Almetyevsk)

Tubingless well operation with electrical submersible pump (ESP) is conducted using a specialized unit to enable lifting of the produced fluid through production string; thus, providing simple, fast and cost-effective well completion, as well as opportunity for rigless well interventions. Research engineers of TatNIPIneft Institute (Tatneft PJSC) have designed a novel tubingless well operation technique that facilitates reduction of production costs due to application of new equipment. The technology for tubingless well operation using ESP was originally used in Well No. 38031 by Oil and Gas Production Department Leninogorskneft. A logging hoist and an automatic winder are installed at the wellhead for tripping of electric submersible pump and for winding of ESP power cable, respectively. A hoisting crane is used to install nipple and ESP. The pumping assembly is run in hole on wireline and set on packer. Advantages of this well operation technology include reduction of well intervention expenditures on pump replacement, mitigation of the costs associated with tubing replacement and repair, and lower risk of cable damage while tripping. These advantages result in OPEX reduction. Increase in oil production rates is achieved due to reduction of water cut. Tubingless operations also yield substantial economic benefit. References 1. Makhmudov S.A., Abuzerli M.S., Montazh, obsluzhivanie i remont skvazhinnykh elektronasosov (Installation, maintenance and repair of borehole electric pumps), Moscow: Nedra Publ., 1995, 223 p. 2. RU 2614426 C1, Pump unit for products lift along the casing string, Inventors: Garifov K.M., Ismagilov F.Z., Artyukhov A.V., Babichev I.N., Lyubetskiy S.V., Kadyrov A.Kh., Glukhoded A.V. 3. Spravochnaya kniga po dobyche nefti (Oil production reference book): edited by Gimatudinov Sh.K., Moscow: Nedra Publ., 1974, 703 р. 4. Shchurov V.I., Tekhnika i tekhnologiya dobychi nefti (Technique and technology of oil production), Moscow: Nedra Publ., 1983, 510 р. 5. Ustanovki pogruzhnykh tsentrobezhnykh nasosov UETsNM i UETsNMK. Rukovodstvo po ekspluatatsii UETsNMRE (Installations of submersible centrifugal pumps UETsNM and UETsNMK. UETsNMRE operation manual), Moscow: Publ. of OKB BN, 1987.