Electric Drilling Tool Suitable for Ocean Underwater Drilling Rig
AssigneeChina University of Petroleum (East China)
InventorsWensheng Xiao, Lianpeng Mei, Junguo Cui, Zhanpeng Liu, Liping Tan
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Abstract
An electric drilling tool suitable for ocean under rater drilling rig is provided, which belongs to the technical field of ocean drilling equipment and includes a power supply assembly, a motor assembly and a bit assembly. The power supply assembly includes a power distribution cabinet, a power supply cable and a cable plug. The motor assembly includes a connecting joint, an upper machine head, a motor housing, a stator assembly, a rotor assembly, a centering bearing, stabilizing bearings, a rotating shaft, a lower machine head and a protector. The bit assembly includes a transition joint and a bit.
Claims9
An electric drilling tool for an ocean underwater drilling rig, comprising:
- a power supply assembly, having a power distribution cabinet, a power supply cable and a cable plug;
- a motor assembly, having a connecting joint, an upper machine head, a motor housing, a stator assembly, a rotor assembly, stabilizing bearings, a thrust bearing, a rotating shaft, a lower machine head and a protector;
- a bit assembly, having a transition joint and a bit;
- wherein the motor assembly has a hollow structure vertically penetrating through the motor assembly, which has an upper end connected with a coiled tubing through the connecting joint and a lower end connected with the bit through the transition joint;
- and
- wherein one end of the power supply cable is connected with the power distribution cabinet, and another end of the power supply cable passes through the coiled tubing and is connected with the upper machine head through the cable plug.
Dependencies are inferred from the claim text.