Considering that there is no snubbing unit meeting the needs of offshore operations in China,a DYJ150 offshore snubbing unit was developed.The snubbing unit adopts modular design and quick disassembly structure,so that the weight of a single assembly module is controlled within the load-bearing range of the offshore crane as required for offshore hoisting operations,allowing it to be installed and disassembled simply and quickly.It incorporates a lifting/lowering system with high load-bearing capacity and a built-in telescopic tubing anti-deflec-tion device,enhancing its operation capacity and application range,and meeting the operation needs of offshore complex wells.It also adopts a high torque and high speed oil-bath lubrication rotary system and integrates a cool-ing system,meeting the needs of special operations such as long-term continuous plug drilling and milling.Fur-thermore,it is configured with a multifunctional work window,allowing it to quickly complete the installation and disassembly of tool strings under two working conditions(heavy pipe and light pipe).The conclusions provide ref-erence for the application of snubbing technology in offshore oil and gas fields.
NETL
NSTL
万方数据
维普
