Hydraulic ball injector

Abstract

The utility model relates to the technical field of ball injectors, and discloses a hydraulic ball injector which comprises a barrel body and a ball pushing mechanism installed in the barrel body, and the surface of the barrel body is fixedly communicated with ball barrels which are symmetrically arranged; the two groups of hydraulic cylinders are respectively mounted at one ends of the two groups of ball barrels through flange plates; according to the hydraulic ball injector, the step of plugging through flange connection is omitted, the using amount of bolts and nuts is reduced, the number of the first injection cylinders is reduced, the number of the first injection cylinders is reduced, and the hydraulic ball injector is convenient to use. The process of opening and closing the flange cover of the ball loading opening is greatly simplified, the efficiency of ball throwing operation is remarkably improved, which is particularly important in fracturing operation of continuous and repeated ball throwing, the labor intensity of workers is greatly reduced, the operation efficiency is improved, and the requirements of practical application are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to a ball thrower technical field, concretely is a kind of hydraulic ball thrower. BACKGROUND

[0002] Fracturing refers to the process of oil or gas production, using hydraulic action, make oil and gas layer form crack, also known as hydraulic fracturing, oil and gas layer fracturing process is used fracturing vehicle, high pressure large displacement liquid with certain viscosity is extruded into oil layer, when many cracks are pressed out of oil layer, support agent (such as quartz sand etc.) is added and filled into crack, improve the permeability of oil and gas layer, to increase water injection (water injection well) or oil production (oil well). In the process of horizontal well staged fracturing, after completing a stage of fracturing operation, fracturing ball is needed to seal casing and open the liquid passage on the wellbore of the next stage of fracturing, so as to carry out the next stage of fracturing. Fracturing ball is a series of different diameter balls, which are sequentially put into the wellbore from small to large;

[0003] According to the search, the publication (announcement) No. CN206071558U discloses a double-cylinder hydraulic cylinder type horizontal well fracturing ball thrower, which discloses the technical scheme of "including cylinder, flange cover, hydraulic cylinder I, ball barrel I, ball loading port flange cover I, fracturing ball I, fracturing ball II, fracturing ball III, hydraulic cylinder II, ball barrel II, ball loading port flange cover II, fracturing ball IV, fracturing ball V, fracturing ball VI, valve core stator, valve core rotor, steel ball, stop block, spring, thrust ball bearing. The flange cover is connected and fixed to the upper end of the cylinder through double-headed studs, and has the technical effects of simple structure, easy control, continuous multiple ball throwing without stopping the wellhead fracturing equipment, etc.

[0004] The above design can completely satisfy continuous multiple ball throwing without stopping the wellhead fracturing equipment, but when throwing the ball, the ball is put into the ball barrel by opening the ball loading port flange cover, and it is troublesome to open the ball loading port flange cover due to the multiple bolts and nuts provided on the ball loading port flange cover, the opening and closing efficiency is low, and the use effect of the structure is reduced, so a hydraulic ball thrower is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a hydraulic ball thrower, which solves the problem of opening the ball loading port flange cover to put the ball into the ball barrel.

[0006] In order to achieve the above object, the utility model discloses a hydraulic ball thrower through the following technical schemes, a hydraulic ball thrower, including the cylinder and install the ball pushing mechanism in the inside of cylinder, the surface fixed communication of cylinder has the ball barrel that is arranged symmetrically,

[0007] Hydraulic cylinder is provided with two groups, and is installed at one end of two groups of ball barrels through flanges respectively;

[0008] The first throwing barrel is provided with two groups, and is fixedly connected on two groups of ball barrels respectively, one end of the first throwing barrel away from the ball barrel is provided with a ball valve through a flange, and the other end of the ball valve is provided with a second throwing barrel through a flange.

[0009] Preferably, the second throwing barrel is provided with a guide pipe, a plurality of connecting rods arranged in a ring shape and at equal intervals are fixed between the guide pipe and the second throwing barrel, and one end of the guide pipe extends to the ball of the ball valve.

[0010] Preferably, the second throwing barrel is provided with a guide pipe, a plurality of connecting rods arranged in a ring shape and at equal intervals are fixed between the guide pipe and the second throwing barrel, and one end of the guide pipe extends to the ball of the ball valve.

[0011] Preferably, the second throwing barrel is provided with a guide pipe, a plurality of connecting rods arranged in a ring shape and at equal intervals are fixed between the guide pipe and the second throwing barrel, and one end of the guide pipe extends to the ball of the ball valve.

[0012] Preferably, the second throwing barrel is provided with a guide pipe, a plurality of connecting rods arranged in a ring shape and at equal intervals are fixed between the guide pipe and the second throwing barrel, and one end of the guide pipe extends to the ball of the ball valve.

[0013] Preferably, the second throwing barrel is provided with a guide pipe, a plurality of connecting rods arranged in a ring shape and at equal intervals are fixed between the guide pipe and the second throwing barrel, and one end of the guide pipe extends to the ball of the ball valve.

[0014] Preferably, the second throwing barrel is provided with a guide pipe, a plurality of connecting rods arranged in a ring shape and at equal intervals are fixed between the guide pipe and the second throwing barrel, and one end of the guide pipe extends to the ball of the ball valve.

[0015] Beneficial effects

[0016] The utility model provides a kind of hydraulic ball thrower.Compared with prior art, it has the following beneficial effects:

[0017] The hydraulic ball thrower eliminates the step of plugging using flange connection, reduces the use amount of bolts and nuts, greatly simplifies the process of opening and closing the flange cover of ball loading port, significantly improves the efficiency of ball throwing operation, which is particularly important in continuous fracturing operation with multiple ball throwing, greatly reduces the labor intensity of workers, improves the operation efficiency and meets the needs of practical application. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a partial sectional view of the structure of the ball valve and the connecting parts such as the second dispensing cylinder of this utility model;

[0020] Figure 3 This utility model Figure 2 A magnified structural diagram at point A;

[0021] Figure 4 This is a cross-sectional view of the connecting block structure of this utility model.

[0022] In the diagram: 101, cylinder; 102, hydraulic cylinder; 103, ball cylinder; 104, first delivery cylinder; 105, ball valve; 106, second delivery cylinder; 107, connecting rod; 108, guide tube; 2, sealing mechanism; 201, cap; 202, sealing disc; 203, sealing gasket; 204, telescopic rod; 205, first spring; 206, buckle plate; 207, connecting block; 208, locking block; 209, second spring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figures 1-4 As shown:

[0025] A hydraulic ball thrower includes a cylinder 101 and a ball pushing mechanism installed inside the cylinder 101. Ball cylinders 103 arranged symmetrically are fixedly connected to the surface of the cylinder 101.

[0026] Two sets of hydraulic cylinders 102 are provided and are respectively installed at one end of the two sets of ball cylinders 103 via flanges;

[0027] The first delivery cylinder 104 is provided in two sets and is fixedly connected to the two sets of ball cylinders 103 respectively. A ball valve 105 is installed at the end of the first delivery cylinder 104 away from the ball cylinder 103 through a flange, and a second delivery cylinder 106 is fixedly installed at the other end of the ball valve 105 through a flange.

[0028] The second delivery cylinder 106 is provided with a guide pipe 108, and a plurality of groups of connecting rods 107 arranged in a ring shape at equal intervals are fixed between the guide pipe 108 and the second delivery cylinder 106. One end of the guide pipe 108 extends to the ball of the ball valve 105.

[0029] In the embodiment, during use, the ball is first put into the ball cylinder 103, as shown in the figure, the control valve of the ball valve 105 is rotated, the ball in the ball valve 105 is adjusted, and the through holes at both ends of the ball are corresponded to the first delivery cylinder 104 and the second delivery cylinder 106, so as to remove the blockage of the ball valve 105, and the first delivery cylinder 104, the ball valve 105 and the second delivery cylinder 106 are communicated with each other. Figure 2

[0030] The ball to be delivered is placed in the second delivery cylinder 106, and the ball is aligned with the guide pipe 108 and put into the guide pipe 108. The ball is put into the ball valve 105 along the guide pipe 108. The guide pipe 108 is fixed in the second delivery cylinder 106 through the connecting rods 107, and the guide pipe 108 is supported and fixed.

[0031] The main function of the guide pipe 108 is to guide the ball. One end of the guide pipe 108 is closer to the through hole end of the ball of the ball valve 105, so that the ball can avoid collision with the sealing ring of the ball valve 105 during delivery, thereby ensuring good sealing effect.

[0032] The ball passes through the second delivery cylinder 106 into the through hole of the ball in the ball valve 105, and then is discharged to the first delivery cylinder 104 and is discharged into the ball cylinder 103 through the first delivery cylinder 104 for storage. After storage, the control valve of the ball valve 105 is rotated again to block the ball valve 105.

[0033] The above operation eliminates the step of blocking by using flange connection, reduces the use amount of bolts and nuts, greatly simplifies the process of opening and closing the ball loading port flange cover, and significantly improves the efficiency of ball delivery operation. This is particularly important in continuous ball delivery fracturing operation, which greatly reduces the labor intensity of workers, improves the operation efficiency, and meets the needs of practical application.

[0034] It should be noted that the fittings used by the hydraulic cylinder 102 and the ball pushing mechanism have been disclosed in CN206071558U. The use effect, principle and structure can be referred to CN206071558U (the structure of the ball pushing mechanism is disclosed in the comparative patent, which specifically includes a valve core stator, a valve core rotor, a steel ball, a stop block, a spring, a thrust ball bearing, a stop block, a steel ball, a spring, a fracturing ball channel, a valve core hydraulic oil inlet and outlet I, a valve core hydraulic oil inlet and outlet, a stator fixing groove, a locking groove, a square hole, a pressure bearing plate, and a round hole). The contents not described in detail belong to the prior art known to those skilled in the art and are not described one by one.​

[0035] Further more;

[0036] In an optional embodiment, the second feeding cylinder 106 is provided with a blocking mechanism 2 at one end away from the ball valve 105;

[0037] The blocking mechanism 2 comprises a cap 201 provided at one end of the second feeding cylinder 106 and a plurality of buckling plates 206 fixed on the surface of the cap 201 in a symmetrical arrangement, the outer surface of the second feeding cylinder 106 is provided with a plurality of connecting blocks 207 corresponding to the buckling plates 206, the connecting blocks 207 are slidably provided with a plurality of locking blocks 208, the locking blocks 208 and the connecting blocks 207 are fixedly provided with a plurality of second springs 209 arranged in a symmetrical arrangement, and the buckling plates 206 are provided with a plurality of locking holes corresponding to the locking blocks 208;

[0038] The connecting blocks 207 are provided with a plurality of moving grooves corresponding to the locking blocks 208, and the locking blocks 208 and the connecting blocks 207 are slidably connected through the moving grooves;

[0039] The cap 201 is provided with a blocking disc 202, and the blocking disc 202 and the cap 201 are fixedly provided with a plurality of telescopic rods 204 arranged in a ring shape and at equal intervals, the surface of the telescopic rods 204 is provided with a plurality of first springs 205, the two ends of the first springs 205 are fixedly connected with the cap 201 and the blocking disc 202 respectively, and the side of the blocking disc 202 away from the first springs 205 is fixedly provided with a sealing gasket 203.

[0040] In this embodiment, the blocking mechanism 2 can block one end of the second feeding cylinder 106, and the specific operation is as follows: the cap 201 is covered on the port of the second feeding cylinder 106, and the side of the cap 201 is abutted against the upper surface of the connecting block 207 to realize positioning, then the buckling plates 206 are connected with the connecting blocks 207 correspondingly, and the locking blocks 208 are pressed to compress the second springs 209, when the locking blocks 208 are completely compressed into the connecting blocks 207 and the locking holes on the buckling plates 206 are aligned with the locking blocks 208, a part of the locking blocks 208 is locked in the locking holes of the buckling plates 206 by using the rebound force of the second springs 209, so as to realize the locking connection of the buckling plates 206 and the connecting blocks 207;

[0041] After the cap 201 is installed in place, the blocking disc 202 is blocked by one end of the second feeding cylinder 106, so as to compress the first springs 205 and the telescopic rods 204, the rebound force of the first springs 205 pushes the blocking disc 202 to tightly contact with one end of the second feeding cylinder 106, and the sealing gasket 203 provided at one end of the blocking disc 202 can enhance the sealing effect of the blocking disc 202 and one end of the second feeding cylinder 106.

[0042] By setting up the sealing mechanism 2, one end of the second dispensing cylinder 106 can be effectively sealed to prevent garbage and debris from entering, ensuring that the closing effect of the ball valve 105 is not affected, thereby improving the overall performance of the device.

[0043] The working principle and usage process of this utility model: During the use of this hydraulic ball thrower, the ball must first be thrown into the ball cylinder 103, such as... Figure 2 As shown, by rotating the control valve of ball valve 105, the ball inside ball valve 105 is adjusted so that both ends of its through hole correspond to the first delivery cylinder 104 and the second delivery cylinder 106, thereby releasing the blockage of ball valve 105 and connecting the first delivery cylinder 104, ball valve 105, and second delivery cylinder 106. The ball to be delivered is placed in the position of the second delivery cylinder 106, and the ball is aligned with the guide tube 108 and placed into the guide tube 108. The ball is then fed into ball valve 105 through the guide tube 108. The ball enters the ball through hole inside ball valve 105 through the second delivery cylinder 106, and is then discharged to the first delivery cylinder 104 and discharged into ball cylinder 103 for storage. After storage, the control valve of ball valve 105 is rotated again to block ball valve 105. The above operation eliminates the step of using flange connection for blocking, reduces the use of bolts and nuts, greatly simplifies the process of opening and closing the ball loading port flange cover, and significantly improves the efficiency of ball delivery operation. This is especially important in fracturing operations that involve multiple ball-throwing operations, as it greatly reduces the labor intensity of workers, improves operational efficiency, and meets the needs of practical applications.

[0044] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A hydraulic ball launcher comprising a barrel (101) and a ball pushing mechanism installed inside the barrel (101), characterized in that: The surface of the barrel (101) is fixedly communicated with a symmetrically arranged ball barrel (103); Hydraulic cylinders (102) are provided with two groups and are respectively installed at one end of the two groups of ball barrels (103) through flanges; First drop barrels (104) are provided with two groups and are respectively fixedly communicated on the two groups of ball barrels (103), one end of the first drop barrel (104) away from the ball barrel (103) is installed with a ball valve (105) through a flange, the other end of the ball valve (105) is fixedly installed with a second drop barrel (106) through a flange.

2. The hydraulic ball launcher of claim 1, wherein: A guide pipe (108) is arranged in the second drop barrel (106), a plurality of groups of connecting rods (107) arranged in a ring shape at equal intervals are fixed between the guide pipe (108) and the second drop barrel (106), one end of the guide pipe (108) extends to the ball of the ball valve (105).

3. The hydraulic ball launcher of claim 1, wherein: A plugging mechanism (2) is installed at one end of the second drop barrel (106) away from the ball valve (105).

4. The hydraulic ball launcher of claim 3, wherein: The plugging mechanism (2) comprises a cap (201) arranged at one end of the second drop barrel (106) and a buckle plate (206) fixed on the surface of the cap (201) and arranged symmetrically, a connecting block (207) corresponding to the buckle plate (206) is fixed on the outer periphery of the second drop barrel (106), a lock block (208) slides on the connecting block (207), a plurality of groups of second springs (209) arranged symmetrically are fixed between the lock block (208) and the connecting block (207), and lock holes compatible with the lock block (208) are formed in the buckle plate (206).

5. The hydraulic ball launcher of claim 4, wherein: A moving groove compatible with the lock block (208) is formed in one side of the connecting block (207), and the lock block (208) and the connecting block (207) are connected through the moving groove.

6. The hydraulic ball launcher of claim 4, wherein: A plugging disc (202) is arranged in the cap (201), a plurality of groups of extension rods (204) arranged in a ring shape at equal intervals are fixed between the plugging disc (202) and the cap (201), a first spring (205) is arranged on the surface of the extension rod (204), and both ends of the first spring (205) are fixedly connected with the cap (201) and the plugging disc (202).

7. The hydraulic ball launcher of claim 6, wherein: A sealing gasket (203) is fixedly installed on one side of the plugging disc (202) away from the first spring (205).

Images