CN213419016U - Radial horizontal well orienting device convenient to operate - Google Patents

Abstract

The utility model provides a radial horizontal well orienting device convenient to operation, including the guiding axle, locate the steering gear of guiding axle top, and fixed connection is in the oil pipe column of steering gear top surface, guiding axle bottom surface fixed mounting has the double-screw bolt, guiding axle top surface central point puts then has seted up the blind hole, annular spout has been seted up on the blind hole inner chamber lateral wall, the several arc wall has been seted up to the below of annular spout, the open-top of arc wall all communicates with each other with annular spout inner chamber bottom surface, the groove depth of arc wall all equals with the groove depth of annular spout, the vertical spout of several has been seted up to annular spout top, vertical spout bottom opening all communicates with each other with annular spout inner chamber. This device need not other complicated electric device and power structure, has simple structure, low cost's advantage, is fit for promoting as novel radial horizontal well orienting device.

Description

Radial horizontal well orienting device convenient to operate

Technical Field

The utility model belongs to radial horizontal well drilling construction field, specifically speaking are radial horizontal well orienting device convenient to operation.

Background

In radial jet drilling operation, an azimuth key is welded in a steering gear, when a gyro inclinometer is put in, an azimuth guide groove at the tail end of the gyro inclinometer is automatically guided into the azimuth key through an orientation azimuth nipple in the steering gear, so that the gyro inclinometer and the steering gear form a whole, then the azimuth of the steering gear is adjusted by rotating an oil pipe on the ground to be consistent with a set perforation direction, and jet drilling is carried out; in order to solve the above problems, patent nos.: CN 201210131813.5 discloses a directional device for radial horizontal well drilling, which mainly comprises a housing, a guide block, a mandrel, a top cover, a rotary joint and the like. The technical characteristics are as follows: the shell is a hollow cylinder, the same axial bosses are uniformly distributed on the inner wall surface, and the upper end surface of each axial boss is processed into the same spiral smooth cambered surface; a mandrel is arranged in the shell, a groove matched with an axial boss of the shell is processed on the mandrel, a T-shaped groove is processed along the inclined surface on the lower end surface of the groove body, a guide block is placed in the T-shaped groove and can freely slide, the upper end of the mandrel is rigidly connected with a steering gear through a steering gear joint, and the steering gear is connected with an upper pipe column through a rotary joint; the top cover is connected to the upper end of the shell through a bolt, so that the top cover can be accurately and quickly oriented in the drilling operation of the radial horizontal well; although the steering device realizes the function of fixing the angle rotation of the steering device, the structure of the steering device can only rotate towards one direction, and the rotation angle is more than 180 degrees frequently in actual use, so that a novel radial horizontal well orienting device which is more convenient and faster to operate is needed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a radial horizontal well orienting device convenient to operation for solve the defect among the prior art.

The utility model discloses a following technical scheme realizes:

a radial horizontal well orienting device convenient to operate comprises a guide shaft, a steering gear arranged above the guide shaft and an oil pipe column fixedly connected to the top surface of the steering gear, wherein a stud is fixedly arranged on the bottom surface of the guide shaft, a blind hole is formed in the center of the top surface of the guide shaft, an annular sliding groove is formed in the side wall of an inner cavity of the blind hole, a plurality of arc-shaped grooves are formed below the annular sliding groove, openings in the tops of the arc-shaped grooves are communicated with the bottom surface of the inner cavity of the annular sliding groove, the groove depths of the arc-shaped grooves are equal to the groove depth of the annular sliding groove, a plurality of vertical sliding grooves are formed above the annular sliding groove, openings in the bottoms of the vertical sliding grooves are communicated with the top surface of the inner cavity of the annular sliding groove, the vertical sliding grooves are respectively in one-to-one correspondence with the positions of the arc, the bottom surface of the steering gear is respectively fixedly provided with a first convex column, the first convex column extends into the blind hole and is in rotating fit with the blind hole, the periphery of the first convex column is respectively fixedly provided with a plurality of second convex columns, and the second convex columns respectively extend into the corresponding arc-shaped grooves.

According to the radial horizontal well orienting device convenient to operate, the top openings of the arc-shaped grooves are all in an outward-expanding inverted splayed shape.

According to the radial horizontal well orienting device convenient to operate, the bottom surfaces of the stop blocks are both concave arcs, and the radian of the bottom surfaces of the stop blocks is the same as that of the periphery of the second convex columns.

According to the radial horizontal well orienting device convenient to operate, the inner cavity of the first convex column is of a hollow structure.

The utility model has the advantages that: when the device is used, a user installs the oil pipe anchor on the stud in a threaded manner, the device is sent to a specified depth by using the oil pipe column to lock the oil pipe anchor, then the gyroscope is put into the oil pipe to measure the opening direction at the tail end of the steering gear, if the opening direction meets the requirement, the user can directly send the horizontal well jet windowing device into the steering gear to carry out opening operation, if the opening direction does not meet the requirement, the user uses the oil pipe column to lift the steering gear and the first convex column upwards, at the moment, the second convex column slides upwards into the annular sliding groove from the arc-shaped groove and presses the corresponding stop block into the vertical sliding groove, then the user can select the nearest rotating direction to rotate the oil pipe column and the steering gear according to the previously measured angle deviation value, when the second convex column rotates away from the lower part of the stop block, the stop block can be pushed by a spring to extend downwards into the annular sliding groove again, the included angle between two adjacent stop blocks during manufacturing of the device needs, when the second convex column rotates to the adjacent stop block, the second convex column is blocked by the adjacent stop block and can not rotate continuously, if the user wants to rotate the steering gear continuously, the user needs to press the steering gear downwards firstly to enable the second convex column to slide into the corresponding arc-shaped groove below the stop block, then the steering gear can be rotated again by the included angle between the two adjacent stop blocks by repeating the previous action, the hitch can realize that a user can only rotate a fixed angle when rotating the steering gear through the tubing string each time, the direction of each rotation can be freely selected, the operation is more convenient, the user only needs to calculate the rotation direction and the number of the stop blocks needing to be crossed according to the initial angle deviation value, can put in place steering gear angular adjustment after repeating above step a plurality of times, this device need not other complicated electric device and power structure, has simple structure, low cost's advantage, is fit for promoting as novel radial horizontal well orienting device.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic structural diagram of the present invention.

Description of the drawings: 1. the guide shaft, 2, the steering gear, 3, the oil pipe column, 11, the stud, 12, the blind hole, 4, the annular sliding groove, 41, the arc-shaped groove, 42, the vertical sliding groove, 43, the stop block, 44, the spring, 21, the first convex column, 22 and the second convex column.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

A radial horizontal well orienting device convenient to operate is disclosed, as shown in the figure, the device comprises a guide shaft 1, a steering gear 2 arranged above the guide shaft 1, and an oil pipe column 3 fixedly connected to the top surface of the steering gear 2, the steering gear 2 and the oil pipe column 3 are both the prior mature technology, the specific structure is not repeated herein, a stud 11 is fixedly arranged on the bottom surface of the guide shaft 1, the size of the stud 11 is matched with the installation screw hole of a corresponding oil pipe anchor, a blind hole 12 is arranged at the center position of the top surface of the guide shaft 1, an annular sliding groove 4 is arranged on the side wall of an inner cavity of the blind hole 12, a plurality of arc-shaped grooves 41 are arranged below the annular sliding groove 4, the top openings of the arc-shaped grooves 41 are communicated with the bottom surface of the inner cavity of the annular sliding groove 4, the groove depths of the arc-shaped grooves 41 are equal to the groove depths of the, opening all communicates with each other with 4 inner chamber top surfaces of annular spout in vertical spout 42 bottom, vertical spout 42 respectively with arc 41 position one-to-one, respectively sliding fit installs dog 43 in the vertical spout 42, dog 43 lower extreme stretches into annular spout 4 respectively, dog 43 top surface respectively with the vertical spout 42 inslot top surface between fixedly connected with spring 44 that corresponds, 2 bottom surfaces of steering gear respectively fixed mounting have first projection 21, first projection 21 stretches into blind hole 12 and normal running fit with it, first projection 21 periphery respectively fixed mounting have several second projection 22, the diameter of second projection 22 all with the vertical width clearance fit of annular spout 4, the quantity of second projection 22 equals the quantity of arc 41, second projection 22 stretches into respectively in the corresponding arc 41. When the device is used, a user installs the oil pipe anchor on the stud 11 in a threaded manner (the oil pipe anchor is the prior mature technology, the specific structure of the oil pipe anchor is not repeated herein), the device is sent to a specified depth by using the oil pipe column 3 to lock the oil pipe anchor, then the gyroscope is put into the oil pipe to measure the opening direction of the tail end of the steering gear 2, if the opening direction meets the requirement, the user can directly send the horizontal well jet windowing device into the steering gear 2 to carry out opening operation, if the opening direction does not meet the requirement, the user lifts the steering gear 2 and the first convex column 21 upwards by using the oil pipe column 3, at the moment, the second convex column 22 slides upwards into the annular sliding groove 4 from the arc-shaped groove 41 and presses the corresponding stop block 43 into the vertical sliding groove 42, then the user can select the nearest rotation direction to rotate the oil pipe column 3 and the steering gear 2 according to the previously measured angle deviation value, when the second convex column 22 rotates away from, the stop blocks 43 are pushed by the spring 44 to extend downwards into the annular sliding groove 4 again, the included angle between two adjacent stop blocks 43 in the manufacturing process of the device needs to be smaller than the maximum deviation angle allowed by the steering gear 2, the second convex column 22 is stopped by the adjacent stop blocks 43 when rotating to the adjacent stop blocks 43 and cannot rotate continuously, if the steering gear 2 needs to rotate continuously, a user needs to press the steering gear 2 downwards firstly to enable the second convex column 22 to slide into the corresponding arc-shaped groove 41 below the stop blocks 43, then the previous actions are repeated to rotate the steering gear 2 by the included angle between the two adjacent stop blocks 43 again, the hitch can realize that the user can only rotate by a fixed angle when rotating the steering gear 2 through the oil pipe column 3 every time, the rotating direction can be freely selected every time, the operation is more convenient and fast, the user only needs to calculate the rotating direction and the number of the stop blocks 43 needing to be crossed according to the initial angle deviation value, can put 2 angular adjustment of steering gear in place after repeating above step a plurality of times, this device need not other complicated electric device and power structure, has simple structure, low cost's advantage, is fit for promoting as novel radial horizontal well orienting device.

Specifically, as shown in fig. 1, the top openings of the arc-shaped slots 41 in this embodiment are all outward-expanding inverted-splayed shapes. This structure can provide the guide function to the displacement of second projection 22, and the second projection 22 of being convenient for the downstream slides in the inslot along the slope that corresponds arc groove 41 both sides.

Specifically, as shown in fig. 1, the bottom surface of the stopper 43 is concave and has the same radian as the outer circumference of the second protrusion 22. When the second convex column 22 presses the corresponding stop block 43 upwards, the structure can make the bottom surface of the stop block 43 fit with the periphery of the second convex column 22, and prevent the second convex column 22 from being pushed to one side by the stop block 43.

Further, as shown in fig. 1, the inner cavity of the first convex column 21 of the present embodiment is a hollow structure. The structure can reduce the weight of the first convex column 21 and reduce the material cost of the device.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (4)

1. The utility model provides a radial horizontal well orienting device convenient to operation, includes guiding axle (1), locates steering gear (2) of guiding axle (1) top to and oil pipe column (3) of fixed connection in steering gear (2) top surface, its characterized in that: the bottom surface of the guide shaft (1) is fixedly provided with a stud (11), the center position of the top surface of the guide shaft (1) is provided with a blind hole (12), the side wall of the inner cavity of the blind hole (12) is provided with an annular sliding groove (4), the lower part of the annular sliding groove (4) is provided with a plurality of arc-shaped grooves (41), the top openings of the arc-shaped grooves (41) are communicated with the bottom surface of the inner cavity of the annular sliding groove (4), the groove depths of the arc-shaped grooves (41) are equal to the groove depth of the annular sliding groove (4), the upper part of the annular sliding groove (4) is provided with a plurality of vertical sliding grooves (42), the bottom openings of the vertical sliding grooves (42) are communicated with the top surface of the inner cavity of the annular sliding groove (4), the vertical sliding grooves (42) are respectively in one-to-one correspondence with the positions of the arc-shaped grooves (41), stop blocks (43) are respectively arranged in a sliding fit in the vertical sliding grooves (, the bottom surface of the steering gear (2) is respectively fixedly provided with a first convex column (21), the first convex column (21) extends into the blind hole (12) and is in running fit with the blind hole, the periphery of the first convex column (21) is respectively fixedly provided with a plurality of second convex columns (22), and the second convex columns (22) extend into the corresponding arc-shaped grooves (41).

2. A conveniently operated radial horizontal well directional device according to claim 1 wherein: the top openings of the arc-shaped grooves (41) are all in an outward-expanding inverted splayed shape.

3. A conveniently operated radial horizontal well directional device according to claim 1 wherein: the bottom surface of the stop block (43) is concave arc-shaped, and the radian of the bottom surface is the same as that of the periphery of the second convex column (22).

4. A conveniently operated radial horizontal well directional device according to claim 1 wherein: the inner cavity of the first convex column (21) adopts a hollow structure.

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