The titanium alloy drill pipe developed by BHNK Drill Pipe Technology Co., Ltd. successfully completed the first field test in well TS3CX well in Tahe Oilfield. This means that HBNK has taken a solid step in lightweight drilling tools, filling the gap in the use of titanium alloy drill pipes in deep wells in China.
The drilling depth of the drilling experiment was 6,263.41 meters, the pure drilling time of the titanium alloy drill pipe was 143 hours, and the total drilling time was 160,000 revolutions. The drilling tool was in good condition. The field experiment evaluation results showed that the performance indicators of the titanium alloy drill pipe fully met the technical specifications. In accordance with actual working conditions, the overall performance has reached the advanced level of similar products.
Compared with traditional steel drill pipes, titanium alloy drill pipes have five advantages: lightweight, corrosion resistance, long life, high flexibility, and non-magnetic. The weight of titanium alloy drill pipes under the same specifications is 57% of that of conventional steel drill pipes, which means that the drilling tools using titanium alloy drill pipes are lighter, and lower grade drilling rigs can be used for drilling operations, which can greatly save Daily cost of drilling rigs, thereby reducing drilling costs.
"From the perspective of a single drill pipe, the price of titanium alloy drill pipe is 20 times higher than that of steel drill pipe, but from the overall effect, the use of titanium alloy drill pipe can reduce the load of the rig by more than 40%, thereby reducing the rig selection specifications And reduce construction energy consumption; the life of titanium alloy drill pipes in air is 10 times that of conventional drill pipes of the same specification, and 100 times that of conventional drill pipes in corrosive environments, which greatly improves the safety and service life of drilling tools, especially suitable for Northwest China Drilling operations under complicated well conditions such as ultra-deep wells and short-radius wells in the oilfield." said Yi Hao, technical director of the Drilling Institute of Northwest Oilfield Engineering Institute.
It is reported that the early ultra-deep short-radius sidetracking technology was successfully tested in the Tahe Oilfield for the first time, and it performed well in both cost reduction and oil increase. However, the harsh working conditions caused by the high slope rate made the application of short-radius technology a high risk of drilling tools The emergence of titanium alloy drill pipes has just solved this problem. Its characteristics of long life and high flexibility not only ensure the bending adaptability of drilling tools in high-curvature boreholes, but also reduce the incidence of drilling tool failures. It can effectively improve the drilling efficiency and safety of short-radius horizontal wells. The promotion and application of oilfield short-radius sidetracking technology escorted.