Determining of stress-strain state of the casing string according to the directional survey data during the wellbore construction

• Autorzy: Paliychyk I. I.
• Języki publikacji: EN

Abstrakty

EN

The casing string in the curvilinear borehole is represented as a long elastic rod, for which a non-uniform system of differential equations is constructed and integrated taking into account its own weight and friction. Formulas for the distribution of axial forces and bending moments in the body of the column, as well as the reactions of the walls leading the column to the actual well profile are obtained. To calculate these force factors, a method for numerical integration of inclinometric measurements data and software for numerical analysis of a real well are developed. This technique allows to detect the areas of local increase of the curvature and difficult passage of the curvilinear well and calculate the parameters of the stress-strain state of the casing column in it.

Słowa kluczowe

EN

casing string; curved well; inclinometric measurements; axial force; wall reaction

• Wydawca: Kielce University of Technology
• Czasopismo: Journal of New Technologies in Environmental Science
• Rocznik: 2018
• Tom: Vol. 2, nr 4
• Strony: 156--167
• Opis fizyczny: Bibliogr. 6 poz., tab., wykr., wzory

Twórcy

autor

Paliychyk I. I.

• Ivano-Frankivsk National Technical University of Oil and Gas, Ukraine

Bibliografia

• [1] Pesliak Yu.A.: Calculation of stresses in columns of pipes of oil wells. Nedra, Moscow 1973 (in Russian).
• [2] Vyslobitskyi P.A.: Calculations of boundary states of pipe columns and pipelines. Lotos, Kyiv 1997 (in Ukrainian).
• [3] Paliichuk I.I.: The Interaction of the Casing String with the Walls of an Inclined, Curved and Horizontal Borehole Areas. Prospecting and Development of Oil and Gas Fields, 1(66), 2018, pp. 27-37 (in Ukrainian).
• [4] Frisch-Fay R.: Flexible Bars. Butterworths, London 1962.
• [5] Matveiev N.M.: Methods of Integration of Ordinary Differential Equations. Vysheishaia shkola, Minsk 1974 (in Russian).
• [6] Liashchenko M.Ya., Golovan M.S.: Numerical Methods Tutorial. Lybid, Kyiv 1996 (in Ukrainian).

Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).