CN214836201U - Drilling fluid force propeller - Google Patents

Abstract

The utility model discloses a drilling fluid power propeller, including the hydraulic propeller main part, hydraulic propeller main part lower extreme and connector are connected, and hydraulic propeller main part lateral surface is provided with righting the mechanism, and the mechanism goes up swing joint has the ball to right simultaneously. This drilling fluid power propeller, high-pressure drilling fluid enters into first cavity through first through-hole, promote first piston rod downstream, can directly pressurize the drill bit, avoided drilling horizontal well and added not the weight of getting on the drill collar or bore slim hole and add not the weight of getting on the drill and easily take place the problem of well deviation, high-pressure drilling fluid accessible pipeline in addition, first piston rod inner chamber, the second through-hole enters into in the second cavity, improve the pressurization effect, be provided with ball and right mechanism, the ball contacts with the wall of a well of drilling, can play stable support effect to hydraulic propeller main part, stability when reinforcing drill bit drilling, the scalable compensation of spring plays the cushioning effect, reduce the damage of rigid collision to hydraulic propeller and drill bit.

Description

Drilling fluid force propeller

Technical Field

The utility model relates to a drilling related technical field specifically is a drilling fluid power propeller.

Background

In the process of drilling a horizontal well in an oil field, when a horizontal well section is drilled, a drilling tool is laid on a lower well wall, the friction between the drilling tool and the well wall is very large, the weight of the drilling tool is difficult to transfer to a drill bit, when the drill collar and a drill rod are reversely arranged, the position of a drill collar column needs to be frequently adjusted due to continuous extension of the well depth, so that the labor intensity of a drilling worker is increased, the completion time of a single well is prolonged, and the drilling cost is remarkably increased; to date, there is no tool for drilling horizontal and slim hole wells that can directly pressurize the drill bit downhole, and there is a need for a drilling fluid force thruster that solves the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a well drilling hydraulic propeller to solve and to provide among the above-mentioned background art because the well diameter is little, the drilling tool size is little, and drill collar post bending stiffness is very low, has the contradiction of pressurization and well incline, and the mechanical drilling speed is low, makes the problem of well drilling cost increase.

In order to achieve the above object, the utility model provides a following technical scheme: a drilling fluid power propeller comprises a hydraulic propeller main body,

the hydraulic propeller comprises a hydraulic propeller body, wherein the lower end of the hydraulic propeller body is connected with the connector, a righting mechanism is arranged on the outer side face of the hydraulic propeller body, and a ball is movably connected to the righting mechanism.

Preferably, the hydraulic thruster main body comprises a cylinder, a first through hole, a pipeline, a first cavity, a first piston rod, a second cavity and a second through hole, and the cylinder body is provided with a first through hole which is communicated with the first cavity, the first cavity is arranged in the cylinder body, the top end in the first cavity is provided with a pipeline in a run-through way, the lower end of the pipeline is arranged in the first piston rod in a penetrating way, the first piston rod is arranged in the first cavity, the lower end of the first piston rod penetrates through the first cavity and is connected with the second piston rod, the second piston rod penetrates through the second cavity, and the second cavity is arranged in the cylinder body, the second cavity is communicated with the second through hole, the second through hole is formed in the side face, close to the lower end, of the first piston rod, and the lower end of the second piston rod penetrates through the second cavity and is connected with the connector.

Preferably, four groups of the righting mechanisms are arranged, and the four groups of the righting mechanisms are distributed on the main body of the hydraulic propeller in an annular array shape.

Preferably, the righting mechanism comprises a supporting shell, a spring, a push rod and a fixing frame. And the support shell is arranged on the outer side surface of the hydraulic propeller main body, the inner wall of the support shell is provided with a spring, the outer end of the spring is connected with the push rod, the outer end of the push rod penetrates through the support shell and is connected with the fixing frame, and the push rod is connected with the inner wall of the support shell in a sliding mode through the sliding groove.

Preferably, the balls and the righting mechanism are in one-to-one correspondence, and the balls are movably connected to the inner wall of the fixing frame.

Compared with the prior art, the beneficial effects of the utility model are that: the drilling fluid force propeller is used for propelling drilling fluid,

(1) the high-pressure drilling fluid enters the first cavity through the first through hole, pushes the first piston rod to move downwards, can directly pressurize the drill bit, and avoids the problems that no drilling pressure is applied to a drilled horizontal well by a drill collar or no pressure is applied to a drilled slim hole and well deviation is easy to occur;

(2) be provided with ball and righting mechanism, the ball contacts with the wall of a well of drilling, can play stable supporting effect to the hydraulic propeller main part, stability when reinforcing drill bit well drilling, and the scalable compensation of spring plays the cushioning effect, reduces the damage of rigid collision to hydraulic propeller and drill bit.

Drawings

Fig. 1 is a schematic view of the front cross-sectional structure of the present invention;

fig. 2 is a schematic top view of the hydraulic thruster main body and the centering mechanism of the present invention;

fig. 3 is a schematic structural view of the righting mechanism of the present invention.

In the figure: 1. the hydraulic thruster comprises a hydraulic thruster body, 101, a cylinder, 102, a first through hole, 103, a pipeline, 104, a first cavity, 105, a first piston rod, 106, a second piston rod, 107, a second cavity, 108, a second through hole, 2, a connector, 3, a centering mechanism, 301, a support shell, 302, a spring, 303, a push rod, 304, a fixing frame, 4 and a ball.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a drilling fluid power propeller is disclosed, as shown in fig. 1, fig. 2 and fig. 3, the lower end of a hydraulic propeller body 1 is connected with a connector 2, the outer side surface of the hydraulic propeller body 1 is provided with a righting mechanism 3, meanwhile, a ball 4 is movably connected on the righting mechanism 3, the hydraulic propeller body 1 comprises a cylinder body 101, a first through hole 102, a pipeline 103, a first cavity 104, a first piston rod 105, a second piston rod 106, a second cavity 107 and a second through hole 108, the cylinder body 101 is provided with the first through hole 102, the first through hole 102 is communicated with the first cavity 104, the first cavity 104 is arranged in the cylinder body 101, the top end in the first cavity 104 is provided with the pipeline 103 in a through way, the lower end of the pipeline 103 is arranged in the first piston rod 105 in a through way, the first piston rod 105 is arranged in the first cavity 104, and the lower end of the first piston rod 105 is connected with the second piston rod 106 in a through way, the second piston rod 106 is arranged in the second cavity 107 in a penetrating manner, the second cavity 107 is arranged in the barrel 101, the second cavity 107 is communicated with the second through hole 108, the second through hole 108 is arranged on the side surface of the first piston rod 105 close to the lower end, the lower end of the second piston rod 106 is connected with the connector 2 in a penetrating manner through the second cavity 107, high-pressure drilling fluid enters the first cavity 104 through the first through hole 102, pushes the first piston rod 105 to move downwards and can directly pressurize a drill bit, the centering mechanism 3 is provided with four groups, the four groups of centering mechanisms 3 are distributed on the hydraulic propeller main body 1 in an annular array manner and can play a role in supporting and stabilizing the hydraulic propeller main body 1 under the action of the centering mechanisms 3, each centering mechanism 3 comprises a supporting shell 301, a spring 302, a push rod 303 and a fixed frame 304, and the supporting shell 301 is arranged on the outer side surface of the hydraulic propeller main body 1, support casing 301 inner wall and be provided with spring 302, and spring 302 outer end and push rod 303 are connected, push rod 303 outer end runs through support casing 301 and mount 304 and is connected, and push rod 303 is sliding connection through the spout between with support casing 301 inner wall, the scalable compensation of spring 302, play the cushioning effect, reduce the damage of rigid collision to hydraulic thruster and drill bit, ball 4 and righting mechanism 3 present the one-to-one relation, and ball 4 swing joint is on mount 304 inner wall, righting mechanism 3 rolls on the wall of a well through ball 4, the reduction friction produces.

The working principle is as follows: when the drilling hydraulic thruster is used, the hydraulic thruster body 1 is connected with a drill bit through the connector 2, when the drilling hydraulic thruster is put into a well to drill, high-pressure drilling fluid enters the first cavity 104 through the first through hole 102, pushes the first piston rod 105 to move downwards, can directly pressurize the drill bit, in addition, high-pressure drilling fluid can enter the second cavity 107 through the pipeline 103, the inner cavity of the first piston rod 105 and the second through hole 108 and act on the second piston rod 106, the pressurization effect is improved, the ball 4 is in contact with the well wall of a drilled well, the stabilizing and supporting effect can be achieved on the hydraulic propeller main body 1 by matching with the centering mechanism 3, the stability of the drill bit during drilling is enhanced, the spring 302 can be telescopically compensated, the buffering effect is achieved, and the damage of rigid collision to the hydraulic propeller and the drill bit is reduced.

The terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for ease of description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the scope of the invention.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (5)

1. A drilling fluid power thruster comprising a hydraulic thruster body (1), characterized in that:

the hydraulic propeller comprises a hydraulic propeller body (1), wherein the lower end of the hydraulic propeller body (1) is connected with a connector (2), a centering mechanism (3) is arranged on the outer side surface of the hydraulic propeller body (1), and balls (4) are movably connected to the centering mechanism (3) simultaneously.

2. A drilling fluid force thruster according to claim 1 wherein: the hydraulic propeller main body (1) comprises a cylinder body (101), a first through hole (102), a pipeline (103), a first cavity (104), a first piston rod (105), a second piston rod (106), a second cavity (107) and a second through hole (108), the cylinder body (101) is provided with the first through hole (102), the first through hole (102) is communicated with the first cavity (104), the first cavity (104) is arranged in the cylinder body (101), the top end in the first cavity (104) is provided with the pipeline (103) in a penetrating manner, the lower end of the pipeline (103) is arranged in the first piston rod (105) in a penetrating manner, the first piston rod (105) is arranged in the first cavity (104), the lower end of the first piston rod (105) penetrates through the first cavity (104) and is connected with the second piston rod (106), the second piston rod (106) penetrates through the second cavity (107), and the second cavity (107) is arranged in the cylinder body (101), the second cavity (107) is communicated with the second through hole (108), the second through hole (108) is arranged on the side surface of the first piston rod (105) close to the lower end, and the lower end of the second piston rod (106) penetrates through the second cavity (107) and is connected with the connector (2).

3. A drilling fluid force thruster according to claim 1 wherein: four groups of the righting mechanisms (3) are arranged, and the four groups of the righting mechanisms (3) are distributed on the hydraulic propeller main body (1) in an annular array shape.

4. A drilling fluid force thruster according to claim 1 wherein: righting mechanism (3) including support casing (301), spring (302), push rod (303) and mount (304), and support casing (301) set up on the lateral surface of hydraulic propeller main part (1), support casing (301) inner wall is provided with spring (302), and spring (302) outer end and push rod (303) are connected, push rod (303) outer end is run through support casing (301) and mount (304) and is connected, and push rod (303) are sliding connection through between spout and support casing (301) inner wall.

5. A drilling fluid force thruster according to claim 4 wherein: the balls (4) and the righting mechanism (3) are in one-to-one correspondence, and the balls (4) are movably connected to the inner wall of the fixing frame (304).

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