Well drilling acceleration dynamic compactor
A dynamic ramming and drilling technology, 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 slow drilling footage, drill bit wear, and inability to effectively increase the drilling pressure, so as to reduce the drilling cost. The effect of reducing drill bit wear and shortening the drilling period
Pending Publication Date: 2019-05-10
张成功
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Problems solved by technology
Therefore, the above method cannot effectively increase the WOB, and the problems of slow drilling footage and drill bit wear still exist
Method used
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[0008] Combine below figure 1 The structure of the present invention will be described.
[0009] Such as figure 1 As shown, the embodiment of the present invention includes an upper joint 1, a guide vane 2, a hydrodynamic rotary wheel 3, a guide body 4, a suspension joint 5, a lower joint 6, and a drill bit 7, and the guide vane 2 is installed in the upper part of the hydrodynamic rotary wheel 3 , the side wall of the lower part of the hydrodynamic rotary wheel 3 is provided with an external communication groove 3-1, the inside of the guide body 4 is a cavity, the upper part of the cavity is closed and the lower part is open, and the upper side wall of the guide body 4 is provided with an inner cavity. The communication groove 4-1 makes the upper part of the cavity of the guide body 4 communicate with the outside, the lower cylinder body of the hydrodynamic rotating wheel 3 is set outside the upper part of the guide body 4, the suspension joint 5 is set outside the upper part...
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The invention discloses a well drilling acceleration dynamic compactor. a guide vane is mounted in the upper part of a hydrodynamic rotating wheel; an outer communicating groove is formed in the sidewall of a lower barrel of the hydrodynamic rotating wheel; a cavity is formed in a flow guide body; an inner communicating groove is formed in the side wall of the upper part of the flow guide body; the upper part of the cavity of the flow guide body communicates with the outside; the lower barrel of the hydrodynamic rotating wheel is sleeved on the upper part of the flow guide body; a suspensionjoint is sleeved on the upper part of a lower joint; the lower end of the suspension joint is limited by an external shoulder of the lower joint; the upper part of the lower joint is connected with the lower part of the flow guide body; the hydrodynamic rotating wheel is provided with a water inlet; the flow guide body is placed in an inner cavity of an upper joint; the upper part of the suspension joint is connected with the lower part of the upper joint; the outer diameter of the middle of the flow guide body is larger than the inner diameter of the suspension joint, the outer communicatinggroove enables the interior of the lower barrel of the hydrodynamic rotating wheel to communicate with the inner cavity, when the hydrodynamic rotating wheel rotates, the outer communicating groove can communicate with the inner communicating groove, the lower portion of the lower joint is connected with a drill bit, and tamping force is generated through drilling fluid to crush rocks.
Description
technical field [0001] The invention belongs to auxiliary equipment for oil exploration and drilling, and is a speed-increasing dynamic rammer for drilling. Background technique [0002] During the drilling process in the oil field, it is necessary to apply pressure to the drill bit to force the drill bit to break and cut rock. The general method of applying pressure to the drill bit is to attach a weighted drill pipe (commonly known as a drill collar) above the drill bit. When this method of applying pressure to the drill bit encounters superhard rock formations, due to the need to apply super high pressure to the drill bit, there is a problem that the pressure applied to the drill bit by the gravity of the drill collar is not enough. In order to solve this problem, the method of lowering the drill pipe to increase the drilling pressure was adopted. However, due to the inability to control the weight of the lowered drill pipes, it is possible that the thousands of meters ...
Claims
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IPC IPC(8): E21B4/02E21B4/16
Inventor 马小石张成功
Owner 张成功