西南石油大学学报(自然科学版)

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The Status and Development in Mechanical Behavior of
Deepwater Well-testing Strings

Wei Xiaodong1,2*, Liu Qingyou3   

  1. 1. Drilling & Production Engineering Technology Research Institute of Chuanqing Drilling Engineering Co. Ltd.,CNPC,Guanghan,Sichuan
    618300,China
    2. College of Mechatronic Engineering,Southwest Petroleum University,Chengdu,Sichuan 610500,China
    3. State Key Laboratory of Oil and Gas Geology and Exploration,Southwest Petroleum University,Chengdu,Sichuan 610500,China
  • Online:2015-02-01 Published:2015-02-01

Abstract:

The mechanical behavior of deep water testing string has an important influence on the success of the deep water
test. Based on the study of the ground pipe string mechanical,the structure,working condition,load and the research status of
the deep water testing string are analyzed and expounded. According to the result of the analysis,the test technology overseas
is mature and the study of mechanical behavior of the deep water testing string is consummate. However,the test work of deep
water field is mainly carried out by foreign technology service company. Aiming at the application status of deep water test in
China,the mechanical behavior of the deep water testing string is analyzed systematically. The conclusion shows that a dynamics
model of deep water testing string could be built,considering the heaving and drifting of platform,the high pressure fluid of
pay formation,the impact of perforation,the temperature coupling effect and other factors. For the purpose of optimization
design of deep water testing strings,and improvement of safety reliability of construction work of deep water testing string,
the mechanical behavior of the whole string should be analyzed.

Key words: deepwater, testing string, research progress, coupling, dynamic model, boundary condition