Analysis of reliability and efficiency of drill dipping piles for oil field construction in permafrost zone-Reference-Cited by-同舟云学术

Analysis of reliability and efficiency of drill dipping piles for oil field construction in permafrost zone

Published:2024-09-05 Issue:4 Volume: Page:96-118
ISSN:0445-0108
Container-title:Oil and Gas Studies
language:
Short-container-title:Izvestiâ vysših učebnyh zavedenij. Neftʹ i gaz

Author:

Shaposhnikov N. O.¹,Yalygin S. A.²,Ermakov B. S.¹^ORCID,Shvetsov O. V.¹^ORCID,Ermakov S. B.¹^ORCID,Golikov N. I.³^ORCID,Sleptsov G. N.³,Klochkov Yu. S.⁴^ORCID

Affiliation:

1. Peter the Great St. Petersburg Polytechnic University

2. "Gazprom Neft PJSC"

3. V. P. Larionov Institute of the Physical-Technical Problems of the North of the Siberian Branch of the RAS

4. Industrial University of Tyumen

Abstract

Relocation of the main capacities of oil production infrastructure from Central to Northern Russia necessitated a re-evaluation of oilfield development strategies, particularly addressing the challenges of constructing foundations for pipelines, processing facilities, and power plants. These foundations are formed by drill-dipping piles into pre-drilled boreholes. The use of drill dipping piles in permafrost is technologically essential as alternative pile types are impractical. The most common are drill dipping piles fabricated from longitudinal seam pipes welded with high frequency current techniques (as per GOST 20295 and GOST R 58064). Performance of such pipes in permafrost conditions was evaluated through laboratory simulations mimicking operational conditions, as well as in-situ at the test site of Federal Research Centre "The Yakut Scientific Centre of the Siberian Branch of the Russian Academy of Sciences" where full-size piles were installed in firm loamy and wet peaty permafrost soils. Pipes both with and without post-weld heat treatment, as specified in SP 16.13330.2017, were tested. The authors examined static mechanical properties and impact toughness of the base metal and welded joints of the pipes, as well as corrosion resistance and crack resistance. The research revealed that post-weld heat treatment did not significantly enhance the reliability of drill dipping piles fabricated from 09G2S steel. Concurrently, microstructure analysis of the welded joints revealed a considerable number of defects along the weld-fusion line, potentially accelerating pile failure.

Publisher

Industrial University of Tyumen

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