Finite Clearance Element Analysis of Perforation Tube String for Testing for Oil
Yu Zhendong(1,2) Li Yan(2)
(1 Institute of Architecture Engineering, Harbin Engineering University £¬Harbin£¬116024£¬China)
(2 Daqing Well Testing & Perforating Services, The Branch of The Daqing Oilfield LTD.Co£¬Daqing£¬163412£¬China.£©

Abstract: In this paper, the contact problem of tube string analyzed by the finite clearance element method is established. The force state of perforation tube string for testing of oil is analyzed with the finite clearance element method, and the field applied examples prove its reliability and veracity. The application software, which is developed with the finite clearance element method, can be provided as theoretical basis for the structural design of down hole tube string.
Keywords: testing for oil, perforation, tube string, clearance element, software.