Recently, the high-performance expansion pipe developed by China's BTGT Special Steel Pipe Technology Group helped PetroChina successfully implement a 756-meter plugging operation in the Southwest Oil and Gas Field, setting a record for the longest open-hole plugging operation of a single expansion pipe in China, and also set the world’s largest in 2020. The best performance for open-eye closure of the caliber expansion tube.
Since 2018, in response to China’s new oil drilling, production and well cementing technology’s demand for large expansion pipes, BTGT has carried out industrial cooperation with China Iron and Steel Research Institute and CNPC Engineering Technology Research Institute to jointly develop large expansion seamless expansion pipes , To fill the gap of this product in China. At present, we have successfully developed a series of expansion pipe products with different sizes ranging from Φ140mm×8mm to Φ299mm×12.7mm, and basically completed the finalization of the series specifications of expansion pipe products required by China's mainstream oilfields represented by Tarim Oilfield and Southwest Oilfield.
Expansion pipe technology is known in the world as a new technology that "will bring about a revolution in drilling technology", which can greatly increase oil well production and reduce drilling and completion costs. The annual demand for expansion pipe is expected to be at least 20,000 tons. The expansion pipe products currently developed by BTGT are cutting-edge products in the Chinese petroleum industry. They have been successfully drilled in the PetroChina Southwest Oil and Gas Field and have reached the longest pipe use record in the world for pipe hole plugging operations.