Testing and production of thread lubricants for oil well tubing at NK Rosneft-MZ Nefteprodukt PJSC

UDK: 665.76:622.276

DOI: 10.24887/0028-2448-2023-1-68-72

Key words: thread lubricants, oil well tubing, wear resistance, tightness, pilot testing

Authors: J.A. Lyubinin (RN-Lubricants LLC, RF, Moscow), Т.D. Leimeter (RN-Lubricants LLC, RF, Moscow), A.Yu. Evstafiev (NK Rosneft-MZ Nefteprodukt PJSC, RF, Moscow), D.S. Kolybelsky (NK Rosneft-MZ Nefteprodukt PJSC, RF, Moscow), Ya.V. Porfirev (NK Rosneft-MZ Nefteprodukt PJSC, RF, Moscow), S.A. Shuvalov (NK Rosneft-MZ Nefteprodukt PJSC, RF, Moscow), P.V. Agafonov (NIIneftetruby LLC, RF, Samara)

The publication describes the stages of development,
testing and organization of production of thread greases for oil country
tubular goods. In bench and pilot tests the main exploitative characteristics
of thread greases were evaluated. In qualification tests on full-scale pipe
samples, the wear resistance of casing pipes with a diameter of 178 mm, tubing
pipes with a diameter of 73 mm and welded locks ZP-127-62 was evaluated on the
STS-2500 bench. Leak tests were carried out on casing samples with a diameter
of 178 mm and tubing with a diameter of 73 mm. Pilot tests were carried out at
RN-Yuganskneftegaz LLC (Pyt-Yakh) on tubing with a diameter of 73×5.5 mm during
make-up and break-out and hydraulic tests on repaired and new pipes
manufactured by Sinarsky Pipe Plant PJSC, Gazpromtrubinvest OJSC and
Pervouralsk Pipe Plant OJSC. Under drilling conditions pilot tests were carried
out at LLC RN-Bureniye on drill pipes IEU 127×9.19 G NC50 manufactured by TMK
Company. Based on the results of the performed work thread greases were
approved for use in oil country tubular goods during the construction and
operation of wells. Industrial production of thread greases has been organized
at NK Rosneft-MZ Nefteprodukt PJSC. The installation and commissioning of an
industrial unit with a capacity of up to 600 tons/year was carried out.