1. A power oil nozzle control device based on fluid pipeline conveying comprises a pipeline (1), an oil nozzle assembly (2) and a sand discharge channel (3), and is characterized in that the pipeline (1) and the oil nozzle assembly (2) form two groups of communication passages which are respectively a first channel (101) and a second channel (102) and are respectively arranged at the left side and the right side of the sand discharge channel (3);

the oil nozzle assembly (2) comprises an oil nozzle rod (21), oil nozzles (22) and an outer housing body (23), wherein first through holes (211) with two penetrating ends are formed in the vertical surface of the central axis where the oil nozzle rod (21) is located, the first through holes (211) are arranged in multiple groups and distributed in an array mode along the direction of the central axis of the oil nozzle rod (21), and the oil nozzles (22) with different calibers are installed in the first through holes (211);

the middle part at encloser body (23) place is run through and is had mutually perpendicular's second through-hole (231) and third through-hole (232), oil nozzle rod (21) run through second through-hole (231) and follow the axis direction motion of second through-hole (231), and make oil nozzle (22) of first through-hole (211) on oil nozzle rod (21) coincide with the central axis of third through-hole (232), simultaneously third through-hole (232) with pipeline (1) communicates each other, makes oil gas get into back from one end of pipeline (1) through oil nozzle (22) at third through-hole (232) place to flow out from another tip and realize switching on.

2. The power nozzle control device based on fluid pipeline conveying according to claim 1, wherein the first through holes (211) of the nozzle rod (21) penetrate through the apertures of the two end portions where the nozzle rod (21) is located and are sequentially distributed in a step shape, so that the outer diameter where the nozzle (21) is located and the inner diameter of the first through hole (211) are mutually sleeved and matched, and meanwhile, the fluid flowing direction through the pipeline (1) flows from the large-aperture direction to the small-aperture direction of the first through hole (211) where the nozzle (21) is located.

3. The power nozzle control device based on the fluid pipeline transportation is characterized in that the connection end of the nozzle rod (21) and the second through hole (231) where the outer housing shell body (23) is located is covered and sealed through the hydraulic cylinder (24).

4. The power nozzle control device based on fluid pipeline conveying of claim 3, characterized in that the nozzle rod (21) of the nozzle assembly (2) extends out of the second through hole (231) of the outer housing shell body (23), and the nozzle rod (21) is reciprocated along the central axial direction of the second through hole (231) of the outer housing shell body (23) through the electric driver (4) so as to realize the communication of the nozzle (21) with different calibers and the third through hole (232).

5. The power nozzle control device based on fluid pipeline conveying according to claim 3, characterized in that a sealing member (201) is arranged at the joint of the nozzle (21) where the first through hole (211) is located and the third through hole (232) where the outer housing shell body (23) is located.

6. The power nozzle control device based on the fluid pipeline transportation is characterized in that the sealing element (201) is attached to the inner wall of the second through hole (231) of the outer housing shell body (23), and meanwhile an annular framework (2011) is arranged at the position of the third through hole (232) of the outer housing shell body (23) where the sealing element (201) is located.

7. The power nozzle control device based on fluid pipeline conveying is characterized in that two end faces where the annular framework (2011) is located are flush with inner and outer walls where the sealing member (201) is located, the central axis where the annular framework (2011) is located is arranged concentrically with the central axis of the third through hole (232), and fluid flows out of the end portion of the nozzle (22) and flows onto a pipeline (1) connected with the third through hole (232) through a hole where the annular framework (2011) is located.

8. The power nozzle control device based on fluid pipeline conveying of claim 1, characterized in that the end of the nozzle rod (21) is provided with a locking and rotation-preventing buckle (202), so that the central axis direction of the nozzle (21) of the nozzle assembly (2) is consistent with the central axial direction of the third through hole (232) of the outer housing shell body (23).

Background

Oil and gas resources refer to oil and gas that are buried in the earth's crust. In the process of oil gas transmission, the oil nozzle pipes with different calibers need to be frequently replaced in the process of oil gas transmission of an oil gas pipeline, so that the purpose of changing the transmission rate is achieved.

A power oil nozzle for petroleum and natural gas wellhead is disclosed in the Chinese patent No. CN205370526U, the connecting part of the device is in threaded connection, the connecting part and the step are pressed together by mechanical force, the sealing performance of the oil nozzle is improved, the structure is firm, and the oil nozzle can be prevented from falling off due to shaking in the using process. However, the improved structure of the oil nozzle is not convenient to disassemble, and when the oil nozzle with other calibers needs to be replaced, the screw at the joint of the oil nozzle and the pipeline needs to be disassembled manually or in a semi-mechanical mode and then assembled.

However, in the oil/gas testing process which needs to be subjected to a large amount of sand discharge erosion, the oil nozzle is frequently replaced, and long-time replacement can cause the sealing property of the joint which is beneficial to the pipeline to be damaged, influence on the transmission performance of the whole pipeline and even cause unnecessary potential safety hazards.

Disclosure of Invention

In view of the defects in the prior art, the invention aims to provide a power nozzle control device based on fluid pipeline conveying, which solves the technical problems in the prior art.

The purpose of the invention can be realized by the following technical scheme:

a power oil nozzle control device based on fluid pipeline conveying comprises a pipeline, an oil nozzle assembly and a sand discharge channel, wherein two groups of communication channels formed by the pipeline and the oil nozzle assembly are respectively a first channel and a second channel and are respectively arranged at the left side and the right side of the sand discharge channel;

the oil nozzle assembly comprises an oil nozzle rod, oil nozzles and an outer housing body, wherein first through holes with two penetrating ends are formed in the vertical surface of the central axis where the oil nozzle rod is located, the first through holes are arranged in multiple groups and distributed in an array mode along the direction of the central axis of the oil nozzle rod, and the oil nozzles with different calibers are installed in the first through holes;

the oil nozzle comprises an outer housing body and is characterized in that a second through hole and a third through hole which are perpendicular to each other penetrate through the middle of the outer housing body, an oil nozzle rod penetrates through the second through hole and moves along the axis direction of the second through hole, an oil nozzle of the first through hole in the oil nozzle rod is overlapped with the central axis of the third through hole, meanwhile, the third through hole is communicated with a pipeline, oil gas enters from one end of the pipeline and then passes through the oil nozzle where the third through hole is located, and the oil gas flows out from the other end of the pipeline to achieve conduction.

Furthermore, the first through holes of the oil nozzle rod penetrate through the calibers of the two end parts where the oil nozzle rod is located, and are sequentially reduced or enlarged in a stepped manner, so that the outer diameter of the oil nozzle is mutually sleeved and matched with the inner diameter of the first through hole, and meanwhile, the fluid flowing direction through the pipeline flows to the small-caliber direction from the large-caliber direction of the first through hole where the oil nozzle is located.

Furthermore, the connection end part of the second through hole where the oil nozzle rod and the outer housing body are located is covered and sealed through a hydraulic cylinder.

Furthermore, the oil nozzle rod of the oil nozzle component extends out of the second through hole of the outer housing body, and meanwhile, the oil nozzle rod is enabled to do reciprocating motion along the central axial direction of the second through hole of the outer housing body through the electric driver, so that the oil nozzles with different calibers can be replaced and communicated with the third through hole.

Furthermore, a sealing element is arranged at the joint of the oil nozzle where the first through hole is located and the third through hole where the outer housing body is located.

Furthermore, the sealing element is attached to the inner wall of the second through hole of the outer housing body, and meanwhile, an annular framework is arranged at the position of the third through hole of the outer housing body where the sealing element is located.

Furthermore, the two end faces where the annular framework is located are flush with the inner wall and the outer wall where the sealing piece is located, the central axis where the annular framework is located and the central axis of the third through hole are concentrically arranged, and fluid flows out from the end of the oil nozzle and flows to the pipeline connected with the third through hole through the hole where the annular framework is located.

Furthermore, the end part where the oil nozzle rod is located is provided with a locking anti-rotation buckle, so that the direction of the central axis of the oil nozzle assembly is consistent with the central axial direction of the third through hole of the outer housing body.

The invention has the beneficial effects that:

1. the device can control the oil nozzles with different calibers to be switched by one key on line, and can replace new oil nozzles without disassembling equipment. The problem of ordinary glib manifold need frequently dismantle, change glib operation difficulty and risk is solved.

2. The device solves the problems that the common oil nozzle manifold needs to be frequently disassembled and replaced, the operation is difficult and the risk is high, the labor intensity of field operators is reduced, the frequency of erosion failure of the fixed oil nozzle is reduced, and the throttling blowout time and the oil nozzle replacement cost are saved.

3. The device accurately moves the required pre-installed oil nozzle to a fluid channel through an oil nozzle rod integrated with oil nozzles of various specifications by an intelligent driving and control technology, and the purpose of quickly switching the oil nozzles on line is realized.

Drawings

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an overall control device according to an embodiment of the present invention;

FIG. 2 is a schematic view of the overall construction of a nozzle assembly according to an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of a nozzle assembly according to an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view of a nozzle tip portion of an embodiment of the present invention;

FIG. 5 is a schematic cross-sectional structural view of a seal according to an embodiment of the present invention;

FIG. 6 is a schematic view of an annular skeleton construction of an embodiment of the present invention;

FIG. 7 is a schematic view of a control structure for the nozzle tip assembly in accordance with an embodiment of the present invention;

FIG. 8 is a schematic view of fluid flow in one direction according to an embodiment of the present invention;

FIG. 9 is a schematic view of fluid flow in another direction according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1, the embodiment of the invention discloses a power nozzle control device based on fluid pipeline transportation, which comprises a pipeline 1, a nozzle assembly 2 and a sand discharge channel 3, wherein two groups of communication passages formed by the pipeline 1 and the nozzle assembly 2 are respectively a first passage 101 and a second passage 102 and are respectively arranged at the left side and the right side of the sand discharge channel 3;

as shown in fig. 2 and 3, the oil nozzle assembly 2 includes an oil nozzle rod 21, oil nozzles 22, and an outer casing body 23, wherein a vertical plane of a central axis where the oil nozzle rod 21 is located is provided with first through holes 211 having two end portions penetrating therethrough, the first through holes 211 are arranged in multiple groups and distributed in an array manner along the central axis direction of the oil nozzle rod 21, and the oil nozzles 22 with different calibers are installed in the first through holes 211; as shown in fig. 4, the first through holes 211 of the choke rod 21 penetrate through the two end apertures where the choke rod 21 is located, and are sequentially distributed in a stepped manner, so that the outer diameter where the choke rod 21 is located and the inner diameter of the first through hole 211 are mutually sleeved and adapted, and simultaneously, the oil-gas circulation direction of the pipeline 1 is kept consistent from the large aperture direction to the small aperture direction of the first through hole 211.

The middle part at encloser body 23 place runs through second through-hole 231 and the third through-hole 232 of mutually perpendicular, glib pole 21 runs through second through-hole 231 and moves along the axis direction of second through-hole 231 to make glib 22 of first through-hole 211 on glib pole 21 coincide with the central axis of third through-hole 232, third through-hole 232 communicates with pipeline 1 each other simultaneously, make oil gas get into the glib 22 at back through third through-hole 232 from one end of pipeline 1, and flow out from another end.

The connection end of the nozzle rod 21 and the second through hole 231 where the outer housing body 23 is located is covered by the hydraulic cylinder 24.

The oil nozzle rod 21 of the oil nozzle assembly 2 extends out of the second through hole 231 of the outer housing body 23, and meanwhile, the oil nozzle rod 21 reciprocates along the central axial direction of the second through hole 231 of the outer housing body 23 through the electric driver 4, so that the oil nozzle 21 with different calibers is replaced to be communicated with the third through hole 232.

As shown in fig. 5, a seal 201 is provided at a joint of the nozzle 21 where the first through hole 211 is located and the third through hole 232 where the outer shroud body 23 is located.

As shown in fig. 6, the sealing member 201 is attached to the inner wall of the second through hole 231 of the outer casing body 23, and an annular skeleton 2011 is provided at the position of the third through hole 232 of the outer casing body 23 where the sealing member 201 is located. The two end faces where the annular framework 2011 is located are flush with the inner wall and the outer wall where the sealing element 201 is located, the central axis where the annular framework 2011 is located and the central axis of the third through hole 232 are concentrically arranged, and fluid flows out from the end of the oil nipple 22 and flows to the pipeline 1 connected with the third through hole 232 through the hole where the annular framework 2011 is located. The hydraulic cylinder 24 on the oil nozzle assembly 2 is controlled to automatically compress, so that the sealing element 201 at the joint of the oil nozzle 21 and the third through hole 232 where the outer housing shell body 23 is located contracts, that is, the left and right conduction of the joint is achieved, and the effect of isolating and sealing from the outside is realized.

As shown in fig. 7, the end of the nozzle rod 21 is provided with a locking anti-rotation buckle 202, so that the central axis direction of the nozzle 21 of the nozzle assembly 2 is consistent with the central axial direction of the third through hole 232 of the outer housing body 23, and the nozzle rod 21 is prevented from moving in the up-and-down reciprocating process to cause that the nozzle 21 and the third through hole 232 cannot form an effective communication channel.

In use, as shown in fig. 8, L2 (hydraulic gate valve), L3 (bleeder valve), L4 (hydraulic gate valve), R2 (hydraulic gate valve), R3 (bleeder valve), R4 (hydraulic gate valve), M1 (manual gate valve), and M2 (manual gate valve) are first closed; meanwhile, L1 (manual plug valve), L5 (manual plug valve), R1 (manual plug valve) and R5 (manual plug valve) are in an opening state. At this time, the hydraulic cylinder 24 on the nozzle assembly 2 is in a pressure relief state, and the inlet and outlet cross joints of the sand discharge passage 3 are connected to the upstream and downstream pipeline flanges.

The remote control console is used for realizing that the oil nozzle rod 21 on the oil nozzle component 2 moves along the central axis direction of the second through hole 231 of the outer housing body 23, selecting the oil nozzle 22 with the specified specification on the oil nozzle rod 21, realizing switching communication between the oil nozzle 22 with the diameter specification on the oil nozzle rod 21 and the third through hole 232, and realizing conduction of the left pipeline 1 and the right pipeline 1. Then, the hydraulic cylinder 24 on the oil nozzle assembly 2 is controlled to automatically compress, so that the sealing element 201 at the joint of the oil nozzle 21 and the third through hole 232 where the outer housing shell body 23 is located contracts, that is, the left and right conduction at the joint is achieved, and the effect of isolating and sealing from the outside is realized.

Then, L2 (hydraulic gate valve) and L4 (hydraulic gate valve) are opened, and fluid oil gas in the pipeline 1 enters the choke assembly 2 through L1 (manual plug valve) and L2 (hydraulic gate valve) to be subjected to throttling and depressurizing operations. Finally, the oil gas flows to an outlet position through a pipeline 1 through L4 (a hydraulic gate valve) and L5 (a manual plug valve).

The same work flow and principle are adopted in the right direction to perform the step-down throttling operation in the same way as shown in fig. 9.

The channel of the sand discharge channel 3 is always in a closed state and is only used when the sand discharge amount is large in the blowout stage after fracturing and sand adding, so that the core part loss of the sand-containing fluid in the pipeline 1 to the oil nozzle assemblies 2 arranged on the two sides of the sand discharge channel 3 is reduced.

When the channel of the sand discharge channel 3 is opened, M1 (manual gate valve) and M2 (manual gate valve) are manually opened, and L2 (hydraulic gate valve), L4 (hydraulic gate valve), R2 (hydraulic gate valve) and R4 (hydraulic gate valve) are closed, the fluid medium entering from the inlet is throttled and depressurized by the fixed throttle valve and then discharged from the outlet.

Through a remote control console or an electro-hydraulic control cabinet on site, L2 (hydraulic gate valve) and L4 (hydraulic gate valve) are closed, then L3 (discharge valve) is opened to release the pressure in the inner cavity of the nozzle assembly 2, and then the hydraulic cylinders 24 at the two ends are automatically opened to release the sealing pressure of the sealing piece 201 of the nozzle assembly 2, so that the nozzle rod 21 can freely move. The intelligent motorized actuator then moves the nozzle rod 21 and switches to the desired nozzle 22 position.

Subsequently, L3 (the bleed valve) is closed, and the hydraulic cylinder 24 again compresses the seal 201 of the nozzle assembly 2, so that the nozzle 22 is sealed off from the outside, thereby achieving a sealing effect.

Finally, the nozzles 22 are switched by opening the valves L2 (hydraulic gate valve) and L4 (hydraulic gate valve) again.

When the nozzle 22 is used when it is necessary to use a nozzle 22 other than the pre-installed size, or when the pre-installed nozzle 22 is damaged, the nozzle 22 can be replaced online. Each set of equipment will be equipped with a sufficient number of spare nipples 22 as required by the customer. When the oil nozzle is replaced, the oil nozzle rod 21 is pushed to one side through a remote control console or a field electro-hydraulic control cabinet, then the protective cover is opened, the oil nozzle 22 which is preassembled is detached by using an oil nozzle disassembling tool respectively, and then a new oil nozzle is installed to the preassembling position of the first through hole 211 of the oil nozzle rod 21.

The device can switch the oil nozzles with different specifications by one key on line, and can replace a new oil nozzle under the condition of not disassembling equipment. The problem of ordinary glib manifold need frequently dismantle, change glib operation difficulty and risk is solved.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.