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Device and method for continuous recovery and utilization of energy in drilling process

A technology of energy recovery and energy, which is applied to drilling equipment and methods, electromechanical devices, percussion drilling, etc., can solve the problems of low utilization efficiency, waste and consumption of gravitational potential energy, and achieve high-efficiency utilization, reduced loss, and reduced The effect of production costs

Active Publication Date: 2018-05-11
北京市地质工程勘察院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under normal working conditions, the energy consumption is relatively large, but in the process of lowering the drill pipe, additional energy needs to be consumed to control the lowering speed, and the gravitational potential energy in the process of lowering the drill pipe is virtually wasted
Although the prior art has studied the recovery of gravitational potential energy during the lowering of the drill pipe, it is limited to the recovery of the gravitational potential energy during continuous lowering, and the utilization efficiency is not high

Method used

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  • Device and method for continuous recovery and utilization of energy in drilling process
  • Device and method for continuous recovery and utilization of energy in drilling process
  • Device and method for continuous recovery and utilization of energy in drilling process

Examples

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Effect test

example 1

[0046] combined with figure 1 As shown, during conventional drilling, the tenth clutch 22 and the second clutch 14 are first disconnected, the first clutch 13 is in a closed state, and the central shaft 26 of the drawworks 1 rotates with the lowering of the drill pipe to drive the first spring for energy storage. The energy storage device 2 is used for energy storage. In the state of decompression drilling, the first clockwork accumulator 2 provides a certain load for decompression drilling, reducing the working load of the drilling rig equipment. After the energy stored in the first clockwork accumulator 2 is saturated, the first clutch 13 is disconnected, the second clutch 14 and the third clutch 15 are closed, and the first clockwork accumulator 2 releases mechanical energy to drive the first gearbox 3 to rotate. The first gearbox 3 provides initial kinetic energy for the rotation of the rotor 24 of the driver 4, thereby driving the first generator 5 to generate electricity...

example 2

[0048] combined with figure 1 As shown, when the drill pipe is continuously lowered, the first clutch 13 is in a disengaged state, and the first generator 5 relies on the energy stored in the first clockwork accumulator 2 to continue to work. The tenth clutch 22 is in the closed state, the fourth clutch 16 is closed, and the seventh clutch 19 is disconnected. The winch 1 first drives the second clockwork accumulator 7 for energy storage. After the energy storage is saturated, refer to the operation steps of Example 1 to drive The second generator 9 works. At this time, the seventh clutch 19 is closed, the fourth clutch 16 is disconnected, and the third generator set repeats the operation process of the second generator set to generate electricity. During the continuous lowering of the drill pipe, the second generator set and the third generator set work alternately in order to ensure continuous power generation of the generator. Part of the electric energy generated by the s...

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Abstract

The invention discloses a device and method for continuous recovery and utilization of energy in drilling process. The device comprises a drive system, an energy conversion system and an energy recovery system, wherein the drive system comprises a winch, a transmission case, a center shaft and a clutch; the energy recovery system comprises a first generator set, a second generator set and a thirdgenerator set; and a electronic control system comprises a super capacitor and a frequency converter. The device and method for continuous recovery and utilization of energy in the drilling process continuously recycles the gravitational potential energy of the drill-down tool and converts the gravitational potential energy into mechanical energy to convert the mechanical energy into electric energy to be used. In the process of energy recovery, the recovery and utilization of the gravitational potential energy is carried out by the alternate work of the first generator set, the second generator set and the third generator set, the energy utilization efficiency is improved, and the construction cost is saved.

Description

technical field [0001] The invention relates to a device for continuously recovering and utilizing energy during drilling, thereby saving energy and reducing construction costs. This technology can be applied to fields such as oil drilling, geological core drilling, hydrological water well drilling and construction. Specifically, it is a drilling rig device capable of recovering and utilizing continuous potential energy and its use method. Background technique [0002] In the process of oil drilling, geological core drilling, and hydrological well drilling, the drilling rig equipment needs to be equipped with a large-capacity independent energy power system to provide sufficient power for the lifting system, mud circulation system, and drill bit rotation system of the drilling rig. Under normal working conditions, the energy consumption is relatively large, but in the process of lowering the drill pipe, additional energy needs to be consumed to control the lowering speed, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B3/02F03G1/00H02K7/18
CPCH02K7/1853E21B3/02F03G1/00
Inventor 孙梓航古彦斌张建良王进卫肖海龙何运晏郭昊甜付晨曹炳强
Owner 北京市地质工程勘察院
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