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Supercharging device used in drill rod and fluid jet guide drilling tool

A technology of pressurization device and fluid injection, which is used in drilling with liquid/gas injection, drill pipe, and directional drilling. , to avoid failure, the effect of high reliability

Pending Publication Date: 2021-11-26
中石化石油工程技术服务有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the rock breaking method of rotary steerable drilling system is mechanical rock breaking method, which mainly relies on the side cutting ability of the drill bit and the guiding lateral force, but the bias mechanism that generates the lateral force is prone to failure due to adverse factors such as vibration, impact, rotation, etc. Then affect the steering effect and life of the entire rotary steerable drilling system

Method used

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  • Supercharging device used in drill rod and fluid jet guide drilling tool
  • Supercharging device used in drill rod and fluid jet guide drilling tool
  • Supercharging device used in drill rod and fluid jet guide drilling tool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as Figure 1-4 Shown, a kind of pressurization device used in the drill pipe, the pressurization device includes the first power unit connected with the drill pipe collar: the upper turbine 7, the second power unit rotatably arranged with the drill bit 23, the second The power device includes: a power turbine 12, a compression turbine 13 integrated with the power turbine 12 and placed in the turbine cavity 14, the bottom of the turbine cavity 14 is connected to the high-pressure nozzle 24 on the drill bit 23 through a valve plate group; the drilling fluid flow power Down, the upper turbine 7 and the power turbine 12 rotate in the opposite direction, part of the drilling fluid enters the turbine cavity 14 under the action of the power turbine 12 of the second power unit, is pressurized by the compression turbine 13 and then sprayed out through the drill bit 23, realizing non-power increasing pressure.

[0034] For better supercharging effect, the cavity of the turb...

Embodiment 2

[0042] This embodiment is an intermediate connection structure added on the basis of Embodiment 1. Regarding the first power device, the second power device, the high pressure chamber 18, the pressure rod 19, the piston 20, the upper valve plate 21, and the lower valve plate 22 are here No more details, this embodiment focuses on the description of the regulating device connected between the first power device and the second power device; the regulating device is further optimized on the basis of Embodiment 1 to ensure that the second power device is always at rest Or the state of slightly swinging from side to side ensures that the supercharging structure is stable and effective.

[0043] The regulating device in the present embodiment comprises the generator 8 connected in turn with the upper turbine 7, the stabilizing motor 9, the measurement and control circuit board 10 and the attitude sensor 11, and the measurement and control circuit board 10 and the attitude sensor 11 a...

Embodiment 3

[0045] A fluid jet steering drilling tool, the fluid jet steering drilling tool includes the pressure boosting device used in the drill pipe of the first embodiment or the second embodiment, and for the specific technical solution of the boosting device, see the first embodiment and / or the implementation Example 2, this embodiment will not go into details, this embodiment focuses on the detailed description of the structure that cooperates with the boosting device and the technical details of the fluid jet steering drill including the booster device.

[0046] In addition to the supercharging device, the fluid jet guiding drilling tool in this embodiment also includes an outer cylinder 17 sleeved on the periphery of the supercharging device, a drill collar connected to the upper end of the outer cylinder 17, a drill bit 23 connected to the lower end of the outer cylinder 17, and a drill bit No high-pressure nozzles 24 and low-pressure water holes 25 are installed in the 23, part...

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Abstract

The invention discloses a supercharging device used in a drill rod. The supercharging device comprises a first power device connected with a drill collar of the drill rod, a second power device arranged in a manner of rotating relative to a drill bit, and a regulation and control device connected between the first power device and the second power device; under the flowing force of drilling fluid, the first power device and the second power device rotate oppositely and reversely, the second power device pressurizes part of the drilling fluid and then discharges the pressurized drilling fluid through the drill bit, and unpowered pressurization is achieved. The invention further discloses a fluid jet guide drilling tool. The supercharging device is applied in the fluid jet guide drilling tool, therefore, a flowing force rock breaking mode of drilling fluid is used for guiding, the defect of failure of a mechanical offset structure is avoided, higher reliability and longer service life are achieved, directional rock breaking is achieved by combining rock breaking in cooperation with a mechanical mode of rotation of the drill bit, and the directional drilling speed is greatly increased.

Description

technical field [0001] The patent of the present invention relates to the rotary steerable drilling device in the field of petroleum drilling engineering, especially a booster device used in the drill pipe of hydraulic rock-breaking steerable drilling, and provides a fluid jet steerable drilling tool with the booster device . Background technique [0002] The rotary steerable drilling system is an important drilling tool for complex structure wells such as horizontal wells, directional wells, and extended-reach wells. The rotary steerable drilling system reduces the underpressure phenomenon by rotating the casing or most of the casing, and the very short part does not rotate, so as to realize the construction of deeper and longer horizontal wells and directional wells. In recent years, the rotary steerable drilling system has gradually become a popular steerable drilling technology and one of the key technologies for efficient drilling. The principle of the steering of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B7/04E21B7/18E21B19/08E21B21/08E21B21/10E21B17/16
CPCE21B7/04E21B7/18E21B19/08E21B21/08E21B21/10E21B17/16
Inventor 朱杰然李光泉杨全进袁晓琪郭淑会崔海波唐海全丁露阳殷鑫陶鑫
Owner 中石化石油工程技术服务有限公司
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