Recently, the "titanium alloy drill pipe" developed by BHNK Petroleum Equipment Technology Corporation won the national invention patent.
With the rapid development of the modern petroleum industry, some conventional drilling tools and equipment have been unable to meet the drilling requirements under special geological conditions and special processes. Chinese enterprises have increased the development of titanium alloy drill pipe products for this purpose.
As a leading enterprise of high-quality and high-strength drill pipes in China, BHNK successfully developed the world's first batch of friction-welded all-titanium alloy drill pipes in 2017, making China one of the advanced countries in the development and production of high-quality all-titanium alloy drill pipes.
The joints and pipe body materials of this product are all titanium alloys, which innovatively changes the current practice of using conventional steel drill pipe joints and titanium alloy drill pipe bodies to form an integral drill pipe by cold assembly. It is connected by advanced friction welding method, which breaks through the technical problems of upsetting and thickening of titanium alloy pipe ends, heat treatment of pipe body and friction welding of pipe body joints.
The national patented "titanium alloy drill pipe" series of products have been rolled off the production line in batches and passed the industrialization test, completing the drilling tasks related to oil and gas wells in China such as PetroChina and Sinopec with high quality.
The drill pipe can reduce the load of the drilling rig by more than 40%, thereby reducing the specification of the drilling rig and reducing the construction energy consumption; the life in the air is 10 times that of the conventional drill pipe of the same specification, and it is 100 times that of the conventional drill pipe in the corrosive environment, which greatly improves the performance of the drill pipe. The safety and service life of drilling tools are especially suitable for drilling operations under complex well conditions such as ultra-deep wells and short-radius wells.