Hydro-hammer

A technology of hydraulic impactor and impact seat, which is applied to the driving device for drilling in the borehole, drilling equipment, earthwork drilling and production, etc. It can solve the problems of not being able to meet the requirements of rapid drilling, affecting the working efficiency of the drill bit, and poor drillability. Achieve the effect of improving downhole operation efficiency, shortening drilling time and saving drilling cost

Active Publication Date: 2015-04-29
CHENGDU EN SHAIN TECH INC +1
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Problems solved by technology

[0002] At present, domestic oil and gas drilling mostly adopts traditional drilling tools, which mainly use rotary drilling to break rocks. When the drill bit meets the rock formation, due to the poor drillability of the rock, the efficiency of the rotary shearing and crushing method is very low. Tool wear seriously affects the working efficiency of the drill bit
With the continuous improvement of mining requirements, the current traditional drilling methods can no longer meet the requirements of rapid drilling

Method used

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Embodiment Construction

[0019] The main idea of ​​the present invention is to install the tool on the bottom hole assembly during drilling operations, and use high-pressure liquid as power to realize the reciprocating motion of the hammer head so that the impact load acts on the drill bit to achieve rotation and impact compound rock formation. Through the following description of the embodiments, it will be more helpful for the public to understand the present invention, but the specific embodiments given by the applicant cannot and should not be regarded as limitations on the technical solutions of the present invention, any components or technical features Changes to the definition and / or formal but not substantive changes to the overall structure should be regarded as the scope of protection defined by the technical solutions of the present invention.

[0020] Such as Figure 1 to Figure 4 The hydraulic impactor shown includes an impact seat 1, a transmission sleeve 2, a casing 3, a guide sleeve 4...

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Abstract

The invention discloses a hydro-hammer. The hydro-hammer comprises an impacting seat 1, a drive sleeve 2, a shell 3, a guide sleeve 4, a hammerhead component 5, a rotator component 6, a turbine component 7 and a connector 8. High-pressure fluids flow into the hydro-hammer from the connector 8 which is connected with the turbine component 7, the turbine component 7 is connected with the rotator component 6 through a drive shaft, the rotator component 6 sleeves the hammerhead component 5, and the hammerhead component 5 can reciprocate along the axis direction of the hydro-hammer under drive of the rotator component 6. When the rotator component 6 rotates around own axis under drive of the turbine component 7, a changeable space a can be formed above the hammerhead component 5, and high-speed fluids enter the changeable space to provide storage energy for downward impacting. The hydro-hammer has the advantages that kinetic energy of the high-pressure fluids are converted into periodic impacting actions to enable a hammerhead to reciprocate to impact a drill bit interruptedly, underground operation efficiency can be improved substantially according to the principle, and accordingly, well drilling time is shortened, drilling cost is saved and economic and social benefits are improved.

Description

technical field [0001] The invention relates to a hydraulic impactor, in particular to a downhole hydraulic impactor, which is mainly used for oilfield rock formation drilling and belongs to the special drilling tool for oil and gas exploration in the petroleum industry. Background technique [0002] At present, domestic oil and gas drilling mostly adopts traditional drilling tools, which mainly use rotary drilling to break rocks. When the drill bit meets the rock formation, due to the poor drillability of the rock, the efficiency of the rotary shearing and crushing method is very low. The wear and tear of the tool seriously affects the working efficiency of the drill bit. With the continuous improvement of mining requirements, the current traditional drilling methods can no longer meet the requirements of rapid drilling. Contents of the invention [0003] The object of the present invention is to provide a hydraulic impactor that can greatly increase the drilling speed a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B4/14E21B4/02
CPCE21B4/02E21B4/14
Inventor 吴华王建东彭文玥包奕强
Owner CHENGDU EN SHAIN TECH INC
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