DEVELOPMENT OF PISTON SEALS FOR DEEP OIL-WELL PROBES FOR HIGH PRESSURE AND TEMPERATURE MEDIUM

Abstract

In this paper the results of a finalized phase of the present test programme are published. It is considered only a stage (of the research work on dynamic seals for oil well probe application) when reasonable solutions were found. The results obtained are promising and already provide satisfactory solution for industrial problems. Compared to the requirements, the endurance test results proved much longer life at an acceptable friction loss. During the possible next phases of the test programmes more design alternatives, seal materials, friction surface materials and qualities should be subjected to endurance test in order to select the most suitable alternatives of the seals and also to optimize them. (Where optimizing the seals means: to obtain, or develop, the most reliable alternatives which produce the possible longest life, belonging to leak proof operation, and smallest friction loss at the operation parameters.) Friction characteristics tests should be carried out too for the selected design alternatives to obtain the required design aids for proper estimation of the expected friction forces at different working parameters.