Subsea production system is widely used in
the development of offshore oil and gas resources, and always runs at the position
of subsea mud line for a long period. In order to ensure safe operation and reduce
the structural complexity as well as the maintenance cost of equipment, it is
necessary to equip a highly reliable subsea pressure and temperature transmitter
(PTT). So far, the design and manufacture technology of subsea PTT has not been
developed in China. On the basis of fully realizing the localization of subsea
production system, and planning the industrial distribution of subsea key equipment
from technical commanding point, this paper analyzes the technical status of
PTT comprehensively. Firstly, the engineering background, the installation
position of PTT and its key role in subsea production system are introduced.
The working principle of PTT is described as well. Afterwards, the function and
technical requirement of the relevant standards for PTT are illuminated. The
mechanical structure, component material, power supply, communication, pressure-temperature
transmitter precision, resolution and other data parameters are compared and analyzed
as well. Finally, the technical difficulties, the problems faced by
international procurement, along with the urgency and necessity of localization
of PTT are presented with summary and
prospect.
