Efekt zmęczenia w żerdziach wiertniczych o małych średnicach, wykorzystywanych w technologii HDD

• Autorzy: Ma F. , Sterling R. , Allouche E.

Warianty tytułu

EN

Fatigue of drill pipes used in mini-horizontal directional Drilling

• Języki publikacji: PL

Abstrakty

EN

In order to analyze the fatigue life of mini-horizontal directional drilling (mini-HDD) rod, a fatigue test machine was constructed at the Trenchless Technology Center. This paper describes the testing procedure and the results of the testing. Five preliminary tests were carried out to test the equipment set up and during these tests, the strong impact of make up torque and joint lubrication on the fatigue life was observed. Seven tests were then carried out at different drill string curvatures to construct an S-N curve for mini-HDD drill pipe. During this series of tests, six failures occurred and one test was terminated without failure. The S-N curve derived from the test results was found to match well with prior research for larger drill pipe used in oil field drilling. Simulation of drill joints was carried out to investigate the stress concentrations within the joint and the theoretical stress condition in different phases of the drilling process was compared to the normal stress assumptions used in practice. The S-N curve results can be used to provide an indication of the cost of drill rod fatigue by using some illustrative assumptions about curved drilling and drill rod usage.

Słowa kluczowe

PL

wiercenia kierunkowe; technologia HDD; zmęczenie materiału

EN

directional drilling; HDD technology; fatigue of material

• Wydawca: Wydawnictwo INŻYNIERIA Spółka z o.o.
• Czasopismo: Inżynieria Bezwykopowa
• Rocznik: 2007
• Tom: nr 2
• Strony: 38--44
• Opis fizyczny: Bibliogr. 9 poz., wykr.

Twórcy

autor

Ma F.

autor

Sterling R.

autor

Allouche E.

• Louisiana Tech University

Bibliografia

• [1] Abdus, Khan (1995). Soil/drilling interaction investigation and guideline development for mini-horizontal directional drilling installations, M.S thesis, Louisiana Tech University, Ruston, Louisiana
• [2] Amro, Mohammed M. (2000). Equations Predict Drill-pipe Fatigue, Oil & Gas Journal, July 10, 2000. 36-42.
• [3] Boyer, Howard E. (1986). Atlas of Fatigue Curves, American Society for Metals, Metals Park, Ohio 44073.
• [4] Grondin, G.Y. and Kulak, G.L. (1991). Fatigue of Drill Pipe Structural Engineering Report No 171, Department of Civil Engineering, University of Alberta, Edmonton, Alberta.
• [5] Hadala, P., McKim, R.A. and Saber, A. (2001). Evaluation of Drill Pipe in Mini-Horizontal Directional Drilling Construction: Development of a Fatigue Testing Machine and Analysis of Severely Bent Drill Rods, A Report on LEQSF Project No (1998–99)-RD-B-14, TTC report, Louisiana Tech University.
• [6] Joosten, M.W., Shute, J. and Ferguson, R.A. (1985). New Study Shows How to Predict Accumulated Drill Pipe Fatigue. World Oil, Vol.201, No 5, pp.65–70.
• [7] Lubinski, A. (1961). Maximum Permissible Dog-Legs in Rotary Boreholes Journal of Petroleum Technology, Vol.13, No 2, pp. 175–194.
• [8] Ma, F. (2004). Fatigue Life of Drill Rods used in Horizontal Directional Drilling, Ph.D. In Engineering Dissertation, Louisiana Tech University.
• [9] Moore, H.F. and Kommers, J.B. (1927). The Fatigue of Metals.