An oil and gas exploitation water distributor convenient to adjust

Abstract

The application relates to the technical field of water dispensers for oil and gas well exploitation, in particular to a water dispenser for oil and gas well exploitation which is convenient to adjust and comprises a center pipe, a core pipe, a magnetic support and a sleeve ring. An upper joint is fixedly installed at the top of the center pipe, an adjusting hoop is threadedly sleeved at the outer side of the top end of the center pipe, a spring is movably installed at the bottom of the adjusting hoop, a valve body is fixedly installed at the bottom end of the spring, and a magnetic ring one is fixedly installed in the valve body. The trapezoidal holes of the trapezoidal nozzles one and two can indirectly increase the structural strength of the holes compared with the traditional rectangular holes, the trapezoidal holes are used to replace the rectangular holes, fluid mechanics is used to reduce the eddy current loss, the flow measurement precision is improved (the error is reduced from plus or minus 15% to plus or minus 8%), ceramic coating is plated on the inner wall of the hole on the inner side of the round corner surface of the inner nozzle, calcium and magnesium ion scaling and blockage are reduced, the core maintenance period is prolonged, and the growth period is extended to six months.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water distribution devices for oil and gas well exploitation, in particular to a water distribution device for oil and gas well exploitation which is convenient to adjust. BACKGROUND

[0002] An oil well is a hole drilled by a drilling method. Generally, after an oil well is drilled to an oil layer, a casing is lowered into the oil layer, and oil well cement is injected into the annular space between the casing and the well wall to maintain the well wall and seal the oil, gas and water layers. Then, according to the requirements of oilfield development, a perforating gun is used to shoot the oil layer to form a channel, and a tubing is lowered. By using a suitable induced flow method, oil is lifted from the well bottom to the well mouth. The water distribution device is the core tool for layered water injection development in oil and gas fields. Through mechanical water nozzle flow limiting or intelligent system regulation and control, the injected water is accurately distributed layer by layer, the interlayer permeability and pressure difference of the oil reservoir are balanced, the high-permeability layer is prevented from being "watered out", and the low-permeability layer is prevented from being "under-injected", thereby supporting fine development of multi-layer oil reservoirs and improving recovery efficiency. The water distribution device is divided into mechanical (which needs to be adjusted by fishing) and intelligent (which is monitored and controlled in real time) types.

[0003] As the core equipment for layered water injection in oil and gas fields, the water distribution device is mainly used to solve the interlayer difference problem of multi-layer heterogeneous oil reservoirs. By accurately controlling the water injection amount and pressure of each layer, balanced oil displacement is achieved. The flow is controlled by a pre-set nozzle. However, the nozzle is mostly fixed, and the flow of the nozzle cannot be adjusted before and after fishing, which makes it difficult to adapt to the needs of various flows, thereby causing inconvenience in adjustment. In addition, the presence of wax and scaling can cause the nozzle aperture to shrink, and the actual flow rate may decrease by 20%-30% compared to the designed value. Regular acid washing or replacement of the nozzle is required, which increases the maintenance cost, thereby causing inconvenience. Therefore, a water distribution device for oil and gas well exploitation which is convenient to adjust is proposed. SUMMARY

[0004] The present application aims to provide a water distribution device for oil and gas well exploitation which is convenient to adjust, in order to solve the problems raised in the background.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solution: a water distribution device for oil and gas well exploitation which is convenient to adjust, comprising a center pipe, a core pipe, a magnetic support and a sleeve ring, wherein the top of the center pipe is fixedly provided with an upper joint, the outer side of the top end of the center pipe is threadedly sleeved with an adjusting clamp, the bottom of the adjusting clamp is movably provided with a spring, the bottom end of the spring is fixedly provided with a valve body, the inside of the valve body is fixedly provided with a magnetic ring one, the outer side of the bottom end of the center pipe is fixedly provided with a valve seat, the bottom of the valve seat is fixedly provided with a lower joint, the inside of the center pipe is provided with a plurality of trapezoidal nozzles one, the outer sides of both ends of the core pipe are sleeved with two sealing rubber rings, the inside of one end of the core pipe is provided with a plurality of trapezoidal nozzles two, the inside of the core pipe is fixedly provided with two sectional magnets, and the inside of the core pipe is fixedly sleeved with a magnetic ring two.

[0006] The top of the ring is provided with a plurality of threaded holes, the inner wall of the ring is fixedly embedded with two groups of magnets one, the inside of the ring is fixedly embedded with a plurality of magnets two, and the outside of the ring is fixedly installed with a plurality of outer rubber strips.

[0007] Preferably, the spring is sleeved outside the center pipe, the top end of the spring is in sliding contact with the bottom of the adjusting hoop, the valve body is movably sleeved outside the center pipe, and the size of the upper connector is larger than that of the center pipe.

[0008] Preferably, the inside of the bottom end of the lower connector is provided with threads, the inside of the upper connector is provided with threads, and the inside of the top end of the lower connector is tapered.

[0009] Preferably, the trapezoidal nozzles one are uniformly distributed in the inside of the center pipe, the trapezoidal nozzles two are uniformly distributed in the inside of the core pipe, the size of the outside of the trapezoidal nozzles two is matched with the size of the inside of the trapezoidal nozzles one, the trapezoidal nozzles two and the trapezoidal nozzles one are both trapezoidal structures, the inside of the trapezoidal nozzles two is provided with an inner nozzle fillet surface, the height of the trapezoidal nozzles two is matched with the height of the trapezoidal nozzles one, and the trapezoidal nozzles two and the trapezoidal nozzles one are cross-distributed.

[0010] Preferably, the two sectional magnets are located at the top and the bottom of the trapezoidal nozzles two respectively, the two sectional magnets are both N-pole and S-pole, and are uniformly distributed in the inside of the core pipe in a circular interval staggered manner, and the size of the sectional magnet is matched with the size of the magnet one and the magnet two.

[0011] Preferably, the size of the magnetic ring two is matched with the size of the magnetic ring one, the top of the core pipe is provided with an upper flow guide arc, the bottom of the core pipe is provided with a lower flow guide arc, and the size of the core pipe is matched with the size of the center pipe.

[0012] Preferably, the two groups of the magnet one and the magnet two are both circularly staggered and uniformly distributed in the inner wall of the ring, the two groups of the magnet one and the magnet two are symmetrically and uniformly distributed in the inner wall of the ring, the threaded holes are circularly and uniformly distributed in the top of the ring, and the outer rubber strips are circularly and uniformly distributed in the outside of the ring.

[0013] Preferably, the size of the ring includes two kinds, one kind of ring inner wall size is matched with the size of the valve seat outside wall, and the other kind of ring outer wall size is matched with the size of the core pipe inner wall.

[0014] Preferably, the magnetic support comprises an upper magnet block composed of a plurality of N and S poles arranged in a circumferential staggered manner, an upper connecting ring fixedly installed at the inner side of the opposite side of the upper magnet block, a connecting column fixedly installed at the bottom of the upper magnet block, a lower magnet block fixedly installed at the bottom of the connecting column, the lower magnet block composed of a plurality of N and S poles arranged in a circumferential staggered manner, a lower connecting ring fixedly installed at the inner side of the opposite side of the lower magnet block, and the magnetic support movably installed at the inner side of the valve seat.

[0015] Compared with the prior art, the device has the following advantages: 1. During use, the core pipe is put into the inner side of the center pipe, the bottom end of the core pipe is in contact with the inner side of the lower joint and is fixed by the sealing rubber ring, the positions of the trapezoidal nozzle two and the trapezoidal nozzle one correspond to each other, the large-size sleeve ring is sleeved on the outer side of the valve seat, and the rotation promotes the magnetic attraction force between the magnet one and the magnet two and the magnetic support and the sectional magnet, the rotation of the core pipe is promoted by the transmission of the magnetic attraction force, the horizontal blocking of the trapezoidal nozzle two to the vertical position of the trapezoidal nozzle one adjusts the size of the water outlet of the water nozzle, the magnetic attraction force indirectly plays a role in adsorbing and stabilizing the position, the center pipe is then installed into the oil well, the water flow passes through the core pipe and the trapezoidal nozzle two to enter the trapezoidal nozzle one, and is discharged to the inner side of the valve seat through the coinciding hole position of the trapezoidal nozzle two and the trapezoidal nozzle one, and finally enters the inside of the oil well layer through the valve body opened by water pressure, thereby playing a role in adjustment and increasing the convenience of use.

[0016] 2. The trapezoidal holes of the trapezoidal nozzle one and the trapezoidal nozzle two can indirectly increase the structural strength of the holes themselves compared with the traditional rectangular holes, the "trapezoidal hole" is used instead of the rectangular hole, fluid mechanics is used to reduce the eddy current loss, improve the flow measurement accuracy (the error is reduced from ± 15% to ± 8%), and the inner side of the inner nozzle fillet surface is plated with a ceramic coating on the inner wall of the hole to reduce calcium and magnesium ion scaling and blockage, prolong the core maintenance cycle, and extend to six months.

[0017] 3. The large size of the sleeve ring is used to be sleeved on the outer side of the valve seat, the center pipe and the core pipe are combined in advance before installation, the sleeve ring is held by the outer rubber strip, and the outer side of the valve seat is rotated, thereby the sectional magnet and the core pipe are rotated by the magnetic force, the purpose of rotation adjustment is achieved, the small size of the sleeve ring is installed by the threaded hole and the bolt connection fishing structure, the sleeve ring is put into the inside of the core pipe, the magnetic force between the magnet one, the magnet two and the sectional magnet and the extrusion friction force of the outer rubber strip on the inner wall of the core pipe can perform the fishing operation on the core pipe, drive the rotation of the core pipe, slightly adjust the position of the core pipe, adjust the position during fishing, indirectly adjust the water tank flow guiding space, and facilitate the operation according to different operation requirements. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 Fig. 1 is a schematic diagram of the front perspective view of the central tube of the present application.

[0019] Figure 2 Fig. 2 is a schematic diagram of the front perspective view of the core tube of the present application.

[0020] Figure 3 Fig. 3 is a schematic diagram of the rear perspective view of the central tube of the present application.

[0021] Figure 4 Fig. 4 is a schematic diagram of the rear perspective view of the core tube of the present application.

[0022] Figure 5 Fig. 5 is a schematic diagram of the front sectional view of the internal structure of the central tube of the present application.

[0023] Figure 6 Fig. 6 is a schematic diagram of the front sectional view of the internal structure of the core tube of the present application.

[0024] Figure 7 Fig. 7 is a schematic diagram of the front perspective view of the collar of the present application.

[0025] Figure 8 Fig. 8 is a schematic diagram of the front perspective view of the magnetic support of the present application.

[0026] Figure 9 Fig. 9 is a schematic diagram of the enlarged structure at A of the present application. Figure 5 Fig. 10 is a schematic diagram of the enlarged structure at B of the present application.

[0027] Figure 10 Fig. 11 is a schematic diagram of the enlarged structure at C of the present application. Figure 6 Fig. 12 is a schematic diagram of the enlarged structure at D of the present application.

[0028] Fig. 1 is a schematic diagram of the front perspective view of the central tube of the present application. Fig. 2 is a schematic diagram of the front perspective view of the core tube of the present application. Fig. 3 is a schematic diagram of the rear perspective view of the central tube of the present application. Fig. 4 is a schematic diagram of the rear perspective view of the core tube of the present application. Fig. 5 is a schematic diagram of the front sectional view of the internal structure of the central tube of the present application. Fig. 6 is a schematic diagram of the front sectional view of the internal structure of the core tube of the present application. Fig. 7 is a schematic diagram of the front perspective view of the collar of the present application. Fig. 8 is a schematic diagram of the front perspective view of the magnetic support of the present application. Fig. 9 is a schematic diagram of the enlarged structure at A of the present application. Fig. 10 is a schematic diagram of the enlarged structure at B of the present application. Fig. 11 is a schematic diagram of the enlarged structure at C of the present application. Fig. 12 is a schematic diagram of the enlarged structure at D of the present application. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be apparently and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0030] Referring to Figures 1-10 The application provides a technical scheme: a water distributor for oil and gas exploitation which is convenient to adjust, comprising a center pipe 1, a core pipe 11, a magnetic support 9 and a sleeve ring 16, a top of the center pipe 1 is fixedly provided with an upper joint 3, an outer side of a top end of the center pipe 1 is threadedly sleeved with an adjusting hoop 2, a bottom of the adjusting hoop 2 is movably provided with a spring 4, a bottom end of the spring 4 is fixedly provided with a valve body 7, an inner part of the valve body 7 is fixedly provided with a magnetic ring 10, an outer side of a bottom end of the center pipe 1 is fixedly provided with a valve seat 5, a bottom of the valve seat 5 is fixedly provided with a lower joint 6, an inner part of the center pipe 1 is provided with a plurality of trapezoidal nozzles 8, outer sides of two ends of the core pipe 11 are both sleeved with two sealing rubber rings 12, an inner part of one end of the core pipe 11 is provided with a plurality of trapezoidal nozzles 13, two sectional magnets 15 are fixedly installed in the inner part of the core pipe 11, and the inner part of the core pipe 11 is fixedly sleeved with a magnetic ring 14.

[0031] A plurality of threaded holes 20 are formed in a top of the sleeve ring 16, two groups of magnetic 1 17 are fixedly embedded in an inner wall of the sleeve ring 16, a plurality of magnetic 2 18 are fixedly embedded in the inner part of the sleeve ring 16, and a plurality of outer rubber strips 19 are fixedly installed on an outer side of the sleeve ring 16.

[0032] The working principle of the above technical scheme is as follows: in use, first, the adjusting hoop 2 is rotated, the relative position of the adjusting hoop 2 and the upper joint 3 is changed, the acting force of the spring 4 on the valve body 7 is increased, the acting force of the valve body 7 on the valve seat 5 is increased, the core pipe 11 is put into the inner part of the center pipe 1, the bottom end of the core pipe 11 is in contact with the inner part of the lower joint 6 stably and is fixed by the sealing rubber ring 12, the positions of the trapezoidal nozzles 13 and the trapezoidal nozzles 8 correspond to each other, the sleeve ring 16 with a large size is sleeved on the outer side of the valve seat 5, the magnetic 1 17 and the magnetic 2 18 generate magnetic attraction force on the magnetic support 9 and the sectional magnet 15 by rotating, the magnetic attraction force is transmitted by rotating, the core pipe 11 is rotated, the horizontal position of the trapezoidal nozzles 13 blocks the vertical position of the trapezoidal nozzles 8, thereby adjusting the size of the water nozzle, the magnetic attraction force indirectly plays a role in adsorbing and stabilizing the position, then the center pipe 1 is installed into an oil well, water flows into the trapezoidal nozzles 8 through the core pipe 11 and the trapezoidal nozzles 13, and is discharged to the inner part of the valve seat 5 through the coincident hole positions of the trapezoidal nozzles 13 and the trapezoidal nozzles 8, finally the valve body 7 is opened by water pressure and input into the inner part of the oil well layer, thereby playing a role in adjusting and increasing the convenience of use.

[0033] In another embodiment, as Figures 1-4 shown, the spring 4 is sleeved on the outer side of the center pipe 1, the top end of the spring 4 is in sliding contact with the bottom of the adjusting hoop 2, the valve body 7 is movably sleeved on the outer side of the center pipe 1, and the size of the upper joint 3 is larger than that of the center pipe 1.

[0034] The top end of the upper joint 3 extends to the outside of the central pipe 1, which can exert a limiting force on the adjusting hoop 2, ensuring that the adjusting hoop 2 does not come off. The spring 4 is sleeved on the outside of the central pipe 1 to provide a stable elastic force for the adjusting hoop 2 and the valve body 7, and to make the valve body 7 contact the top of the valve seat 5, so that the structure is relatively stable. When the water flow and water pressure open the contact surface of the valve body 7 and the valve seat 5, the water flow is circumferentially discharged, and when the external water pressure is greater than the internal water pressure of the core pipe 11, the valve body 7 closes the valve seat 5, facilitating the flow.

[0035] In another embodiment, as shown in Figure 2 The bottom end of the lower joint 6 is internally threaded, and the inside of the upper joint 3 is internally threaded. The top end of the lower joint 6 is tapered.

[0036] The threads of the upper joint 3 and the lower joint 6 facilitate the installation and connection of other equipment in the oil well, such as packers and segmented equipment of oil well pipelines, and the use of conventional structures and existing technologies.

[0037] In another embodiment, as shown in Figure 2 The trapezoidal nozzles one 8 are uniformly distributed in the inside of the central pipe 1, and the trapezoidal nozzles two 13 are uniformly distributed in the inside of the core pipe 11. The size of the outside of the trapezoidal nozzles two 13 is adapted to the size of the inside of the trapezoidal nozzles one 8. The trapezoidal nozzles two 13 and the trapezoidal nozzles one 8 are both trapezoidal structures. The inside of the trapezoidal nozzles two 13 is provided with an inner nozzle round corner surface 1301. The height of the trapezoidal nozzles two 13 is adapted to the height of the trapezoidal nozzles one 8. The trapezoidal nozzles two 13 and the trapezoidal nozzles one 8 are cross-distributed.

[0038] The trapezoidal nozzles one 8 and the trapezoidal nozzles two 13 are circumferentially distributed and correspond in position. When the core pipe 11 is installed in the inside of the center pipe 1, the core pipe 11 is inverted into the inside of the center pipe 1, so that the trapezoidal nozzles two 13 correspond in position with the trapezoidal nozzles one 8. The width size of the trapezoidal nozzles two 13 is slightly larger than the width size of the trapezoidal nozzles one 8, and the height size is consistent. Therefore, when the core pipe 11 rotates in the inside of the center pipe 1, the trapezoidal nozzles two 13 overlap the trapezoidal nozzles one 8 at the position, so as to realize the size change of the hole. When the trapezoidal nozzles two 13 and the trapezoidal nozzles one 8 completely overlap, the outside surface of the trapezoidal nozzles two 13 corresponds to the inside surface of the trapezoidal nozzles one 8. At this time, the opening of the water tank is the largest, the water flow is introduced into the trapezoidal nozzles one 8 through the trapezoidal nozzles two 13, and then is introduced into the inside of the valve seat 5 through the trapezoidal nozzles one 8 and is discharged, so as to realize the adjustment of the water tank hole. In addition, compared with the traditional rectangular hole, the trapezoidal hole of the trapezoidal nozzles one 8 and the trapezoidal nozzles two 13 can indirectly increase the structural strength of the hole itself. The "trapezoidal hole" is adopted instead of the rectangular hole, fluid mechanics is used to reduce the eddy current loss, the flow measurement accuracy is improved, the error is reduced from ± 15% to ± 8%, and the inside surface of the inner nozzle round corner surface 1301 is plated with a ceramic coating on the inside surface of the hole inner wall, so as to reduce the calcium and magnesium ion scaling and blockage, prolong the core maintenance period, and extend to six months. The problems of low flow accuracy and easy scaling of the rectangular hole of the core are improved.

[0039] In another embodiment, as shown in Figure 2 Two segmented magnets 15 are respectively located at the top and the bottom of the trapezoidal nozzles two 13. The two segmented magnets 15 are circumferentially and evenly distributed in the inside of the core pipe 11 with N poles and S poles being alternately staggered. The specification size of the segmented magnets 15 is matched with the specification size of the magnet one 17 and the magnet two 18.

[0040] The segmented magnets 15 are circumferentially and evenly distributed with N poles and S poles being alternately staggered. The distribution pattern of the segmented magnets 15 is similar to the distribution pattern of the magnet one 17 and the magnet two 18 on the inside of the sleeve ring 16, so as to facilitate the driving of the segmented magnets 15 by the magnetic pole force, and then promote the rotation of the core pipe 11. If the pipe diameter is set to be large, and the required rotating force is large, and the magnetic force is weakened after being transmitted to the segmented magnets 15 through the valve seat 5. At this time, the magnetic support 9 is inserted into the inside of the valve seat 5, so as to increase the force. In order to reduce the weakening of the adsorption of the magnet to the center pipe 1 and the core pipe 11, the center pipe 1 and the core pipe 11 are made of corrosion-resistant austenitic stainless steel and other corrosion-resistant materials without ferromagnetic properties, so as to facilitate the cooperation to realize the scheme.

[0041] In another embodiment, as shown in Figure 2 The specification size of the magnetic ring two 14 is matched with the specification size of the magnetic ring one 10. The top of the core pipe 11 is provided with an upper flow guide arc 1101, and the bottom of the core pipe 11 is provided with a lower flow guide arc 1102. The specification size of the core pipe 11 is matched with the specification size of the center pipe 1.

[0042] The corresponding of the magnetic ring two 14 and the magnetic ring one 10 makes the structure relatively stable, which is convenient for stabilizing the position of the core tube 11, indirectly ensures that the core tube 11 is not dislocated when rotating, and indirectly increases the stability of the structure. The upper and lower guide arcs 1101 and 1102 are arranged to guide the water flow. The core tube 11 as the core can be put into the inside of the central pipe 1, which is convenient for installation and use.

[0043] In another embodiment, as shown in Figure 2 The two groups of magnets one 17 and magnets two 18 are symmetrically and uniformly distributed on the inner wall of the sleeve ring 16. The threaded holes 20 are uniformly distributed on the top of the sleeve ring 16. The outer rubber strips 19 are uniformly distributed on the outside of the sleeve ring 16.

[0044] The magnetic poles of the magnets one 17 and the magnets two 18 are distributed in a circular interval, which is convenient for driving the segmented magnet 15 to rotate and can transmit the rotating force when in use. When the large-specification sleeve ring 16 is sleeved on the outside of the valve seat 5, the segmented magnet 15 can be driven to rotate by the magnetic force distribution when rotating, and the relative stability of the structure is maintained. The outer rubber strips 19 provide a friction force for the manual handle on the outside of the large-specification sleeve ring 16 and increase a friction force between the outside wall of the small-specification sleeve ring 16 and the inside of the core tube 11. In combination with the magnetic force and the fishing structure, the inside of the core tube 11 can be operated, the fishing and rotating in the uncombined state are realized, and the use effect is indirectly increased, the relative stability of the structure is increased, and the stable operation of the structure is maintained.

[0045] In another embodiment, as shown in Figure 2 The specification of the sleeve ring 16 includes two kinds. One kind of the specification size of the inner wall of the sleeve ring 16 is matched with the specification size of the outer wall of the valve seat 5. Another kind of the specification size of the outer wall of the sleeve ring 16 is matched with the specification size of the inner wall of the core tube 11.

[0046] The large size of the sleeve ring 16 is used to be sleeved on the outside of the valve seat 5, by combining the center pipe 1 and the core pipe 11 in advance before installation, holding the sleeve ring 16 and the outer rubber strip 19, rotating on the outside of the valve seat 5, so as to drive the segmented magnet 15 and the core pipe 11 to rotate through magnetic force, which plays a rotating adjusting role. The small size of the sleeve ring 16 is installed by the threaded hole 20, and the sleeve ring 16 is put into the inside of the core pipe 11, and through the magnetic force of the magnet one 17 and the magnet two 18 and the segmented magnet 15 and the extrusion friction force of the outer rubber strip 19 on the inside wall of the core pipe 11, the core pipe 11 can be fished and rotated to slightly adjust the position of the core pipe 11, so as to adjust the position during fishing, indirectly adjust the water tank guide space, and facilitate operation according to different operation requirements.

[0047] In another embodiment, as shown in Figure 2 The magnetic support 9 includes an upper magnet block 901, the upper magnet block 901 is composed of a plurality of N poles and S poles distributed in a circle, the inside of the opposite side of the upper magnet block 901 is fixedly installed with an upper connecting ring 904, the bottom of the upper magnet block 901 is fixedly installed with a connecting column 902, the bottom of the connecting column 902 is fixedly installed with a lower magnet block 903, the lower magnet block 903 is composed of a plurality of N poles and S poles distributed in a circle, the inside of the opposite side of the lower magnet block 903 is fixedly installed with a lower connecting ring 905, and the magnetic support 9 is movably installed on the inside of the valve seat 5.

[0048] The upper magnet block 901 and the lower magnet block 903 are both composed of N poles and S poles distributed in a circle, and the interval of the upper magnet block 901 and the lower magnet block 903 is two relative to the interval of the segmented magnet 15, the magnet one 17 and the magnet two 18, that is, the N poles and S poles of the upper magnet block 901 and the lower magnet block 903 are distributed with an interval of two N poles and S poles of the segmented magnet 15, the magnet one 17 and the magnet two 18 in the middle, which can correspond the N poles and S poles of the upper magnet block 901 and the lower magnet block 903 to the N poles and S poles of the segmented magnet 15, the magnet one 17 and the magnet two 18, and generate adsorption effect. When the magnetic support 9 is installed in the inside of the valve seat 5, the interval space can guide water flow, reduce blockage, and through pulling the valve body 7, the magnetic support 9 is installed on the inside of the valve seat 5, the magnetic support 9 and the segmented magnet 15 can generate a positioning adsorption effect, which indirectly ensures the position stability of the core pipe 11, and the magnetic support 9 can be installed on the inside of the valve seat 5 according to needs, which is convenient for relative stability of the structure.

[0049] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. A water distributor for oil and gas well operations that facilitates adjustment, comprising a center pipe (1), a core pipe (11), a magnetic holder (9) and a collar (16), characterized in that: The top of the center pipe (1) is fixedly provided with an upper joint (3), the outer side of the top end of the center pipe (1) is threadedly sleeved with an adjusting hoop (2), the bottom of the adjusting hoop (2) is movably provided with a spring (4), the bottom end of the spring (4) is fixedly provided with a valve body (7), the inside of the valve body (7) is fixedly provided with a magnetic ring I (10), the outer side of the bottom end of the center pipe (1) is fixedly provided with a valve seat (5), the bottom of the valve seat (5) is fixedly provided with a lower joint (6), the inside of the center pipe (1) is provided with a plurality of trapezoidal nozzles I (8), the outer sides of the two ends of the core pipe (11) are sleeved with two sealing rubber rings (12), the inside of one end of the core pipe (11) is provided with a plurality of trapezoidal nozzles II (13), the inside of the core pipe (11) is fixedly provided with two sectional magnets (15), the inside of the core pipe (11) is fixedly sleeved with a magnetic ring II (14), the trapezoidal nozzles I (8) are uniformly distributed in the inside of the center pipe (1) in a circle, the trapezoidal nozzles II (13) are uniformly distributed in the inside of the core pipe (11) in a circle, the size of the outer side of the trapezoidal nozzles II (13) is matched with the size of the inner side of the trapezoidal nozzles I (8), the trapezoidal nozzles II (13) and the trapezoidal nozzles I (8) are all trapezoidal structures, the inner side of the trapezoidal nozzles II (13) is provided with an inner nozzle fillet surface (1301), the height of the trapezoidal nozzles II (13) is matched with the height of the trapezoidal nozzles I (8), the trapezoidal nozzles II (13) and the trapezoidal nozzles I (8) are cross-distributed. The top of the sleeve ring (16) is provided with a plurality of threaded holes (20), the inner wall of the sleeve ring (16) is fixedly embedded with two groups of magnetic I (17), the inside of the sleeve ring (16) is fixedly embedded with a plurality of magnetic II (18), the outer side of the sleeve ring (16) is fixedly provided with a plurality of outer rubber strips (19), the two sectional magnets (15) are located at the top and the bottom of the trapezoidal nozzles II (13) respectively, the two sectional magnets (15) are both N-pole and S-pole and are uniformly distributed in the inside of the core pipe (11) in a circle, the size of the sectional magnet (15) is matched with the size of the magnetic I (17) and the magnetic II (18).

2. The water distributor for use in oil and gas exploitation with easy adjustment according to claim 1, characterized in that: The spring (4) is sleeved on the outside of the center pipe (1), the top end of the spring (4) is in sliding contact with the bottom of the adjusting hoop (2), the valve body (7) is movably sleeved on the outside of the center pipe (1), the size of the upper joint (3) is larger than the size of the center pipe (1).

3. The adjustable water distribution device for oil and gas exploration of claim 1, wherein: The inside of the bottom end of the lower joint (6) is provided with a thread, the inside of the upper joint (3) is provided with a thread, the inside of the top end of the lower joint (6) is conical.

4. The adjustable water distribution device for oil and gas exploration of claim 1, wherein: The size of the magnetic ring II (14) is matched with the size of the magnetic ring I (10), the top of the core pipe (11) is provided with an upper flow guide arc (1101), the bottom of the core pipe (11) is provided with a lower flow guide arc (1102), the size of the core pipe (11) is matched with the size of the center pipe (1).

5. The adjustable water distribution device for oil and gas exploration of claim 1, wherein: Two groups of said magnet one (17) and magnet two (18) are evenly distributed in the inner wall of the ring (16), two groups of said magnet one (17) and magnet two (18) are symmetrically and evenly distributed in the inner wall of the ring (16), said threaded hole (20) is evenly distributed in the top of the ring (16), said outer rubber strip (19) is evenly distributed on the outside of the ring (16).

6. The adjustable water distribution device for oil and gas exploration of claim 1, wherein: The specifications of the ring (16) include two kinds, one kind of ring (16) inner wall size is suitable for the size of the outer side wall of the valve seat (5), the other kind of ring (16) outer wall size is suitable for the size of the inner side wall of the core pipe (11).

7. The adjustable water distribution device for oil and gas exploration of claim 1, wherein: The magnetic support (9) includes an upper magnet block (901), the upper magnet block (901) is composed of a plurality of N-pole and S-pole, the upper magnet block (901) is fixedly installed with an upper connecting ring (904) in the inner side of the opposite side, the bottom of the upper magnet block (901) is fixedly installed with a connecting column (902), the bottom of the connecting column (902) is fixedly installed with a lower magnet block (903), the lower magnet block (903) is composed of a plurality of N-pole and S-pole, the lower magnet block (903) is fixedly installed with a lower connecting ring (905) in the inner side of the opposite side, the magnetic support (9) is movably installed in the inner side of the valve seat (5).

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