First Day Cover
首日封
Sobrescrito de 1.º Dia
ChinaOffshore Oil
Date of Issue : 18 January 2013
3-1 : Oil Prospecting
"Hai Yang Shi You 720" displayed on the stamp is Asia's first-generation geophysical vessel for three-dimensional deepwater seismic survey, independently designed and built by China. The vessel was put into use at South China Sea in May 2011.
3-2 : Well Drilling
"Hai Yang Shi You 981" displayed on the stamp is a sixth-generation deepwater semi-submersible drilling platform, first of its kind independently designed and built by China. It began to drill officially at the South China Sea on 9 May 2012.
3-3 : Oil Production
"Hai Yang Shi You 117", also named "Bo Hai Peng Bo", displayed on the stamp is the FPSO (Floating Production, Storage and Offloading) with the largest tonnage and newest technology so far in China. It went into operation at Bohai Sea on 18 May 2009.
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