High-power mud generator for downhole tools

Abstract

The invention discloses a high-power mud generator for downhole tools, which comprises an inner magnetic coupler. The outer side of the inner magnetic coupler is sleeved with an outer magnetic coupler, one side of the outer magnetic coupler is sleeved with a turbine, and the side, away from the turbine, of the inner magnetic coupler is connected with a generator rotor. The outer side of the generator rotor is sleeved with a stator winding, the side, away from the inner magnetic coupler, of the stator winding is connected with a rotating shaft assembly, and a seven-core sliding ring is clamped in the rotating shaft assembly. The device has the beneficial effects that novel design is adopted, fluid mechanics and engineering mechanics are applied, and the energy conversion loss is small; the magnetic flux is increased and the density of the stator winding is designed, so that the output power of the turbine generator can reach 1.5 KW under the normal rotating speed, the throttling loss of high-pressure mud is small, and the whole system is not influenced; the novel damping and shock-absorbing design is adopted, the whole system runs smoothly, and the running resistance is small; and the output end adopts a double-loop design, so that the reliability is higher.

Description

technical field [0001] The invention relates to the technical field of oil drilling, in particular to a high-power mud generator for downhole tools. Background technique [0002] Due to the requirements of rotary steering or drilling measurement technology in modern oilfield production technology, high energy consumption electrical equipment is often equipped downhole. It is usually equipped with a large-capacity lithium battery or a small generator. When the power of the small generator is not enough, a lithium battery is usually equipped at the same time. However, the lithium battery is limited by its capacity and ambient temperature. When the power is exhausted or fails, the drill must be pulled out Replacement and maintenance, frequent drilling stoppages lead to a sharp increase in drilling costs. [0003] Due to the limitation of the underground environment and space, the scale and size of the turbine generator is difficult to enlarge without control. In order to meet...

AI Technical Summary

Problems solved by technology

It is usually equipped with a large-capacity lithium battery or a small generator. When the power of the small generator is not enough, a lithium battery is usually equipped at the same time. However, the lithium battery is limited due to its capacity and ambient temperature. When the power is exhausted or fails, the drill must be pulled out Replacement and maintenance, frequent drilling stops and trips lead to a substantial increase in drilling costs

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