CN215169917U - Tool for assisting pumping perforation - Google Patents
Tool for assisting pumping perforation Download PDFInfo
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- CN215169917U CN215169917U CN202121137494.XU CN202121137494U CN215169917U CN 215169917 U CN215169917 U CN 215169917U CN 202121137494 U CN202121137494 U CN 202121137494U CN 215169917 U CN215169917 U CN 215169917U
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- short circuit
- tool
- annular
- joint short
- upper joint
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Abstract
The utility model discloses a tool for assisting pumping perforation, which comprises an upper joint short circuit, a lower joint short circuit and a pump effect short circuit; the top end of the upper joint short circuit is connected with the positioner device, the bottom end of the upper joint short circuit is connected with the top end of the pump effect short circuit, the bottom end of the pump effect short circuit is connected with the top end of the lower joint short circuit, and the bottom end of the lower joint short circuit is connected with the perforating gun; at least 1 ring channel has been seted up along the axial of pump effect short circuit on the pump effect short circuit, and switches on between the adjacent ring channel. When the pumped fluid acts on the pumping short circuit, the pumped fluid forms rotary motion between the annular grooves, so that a vortex is generated, the axial pressure of the pumping short circuit is increased along the flow direction of the pumped fluid, the tool forms pressure difference, the stress of the tool is increased, namely the thrust is increased, and the risk of pump disconnection is reduced.
Description
Technical Field
The utility model belongs to the technical field of oil gas well perforation technique and specifically relates to a tool for assisting pump sending perforation is related to.
Background
In the combined operation construction operation of the perforation and the bridge plug of the volume fracturing horizontal well, well conditions such as deformation of a casing of the horizontal well are often met, and the phenomenon that the bridge perforation combined tool string is blocked in the well descending process is easily caused when the large-diameter perforation tool string is put into the well, so that the reservoir transformation cannot be realized. The existing solution is to pump small-diameter perforating tool strings, however, in the horizontal well pumping, the small-diameter perforating tool strings need larger displacement to pump to the target depth, and the large displacement brings larger pumping-off risk. Taking 73 perforating guns as an example, the maximum discharge capacity can reach 4 square/minute, so that the stress of a tool string and a cable reaches the limit, downhole accidents are easy to occur, and great influence is brought to construction.
Therefore, how to reduce the risk of pump-off during the pumping process is a technical problem to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides a tool for assisting pumping perforation, which can reduce the risk of pump-off during pumping.
In order to achieve the above object, the present invention provides the following solutions:
a tool for assisting pumping perforation comprises an upper joint short circuit, a lower joint short circuit and a pump effect short circuit;
the top end of the upper joint short circuit is connected with the positioner device, the bottom end of the upper joint short circuit is connected with the top end of the pump effect short circuit, the bottom end of the pump effect short circuit is connected with the top end of the lower joint short circuit, and the bottom end of the lower joint short circuit is connected with the perforating gun;
at least 1 annular groove is seted up along the axial of pump effect short circuit on the pump effect short circuit, and switches on between the adjacent annular groove.
In a specific embodiment, the pump effect short circuit comprises a plurality of annular bulges which are sequentially connected end to end;
the annular groove is formed between the adjacent annular bulges.
In another specific embodiment, a groove is formed on the side wall of the annular protrusion, and two ends of the groove are communicated with the adjacent annular grooves.
In another specific embodiment, the number of the grooves is multiple, and the grooves are uniformly distributed on the side wall of the annular bulge along the axial direction of the annular bulge.
In another specific embodiment, the annular projection is an annular cone.
In another specific embodiment, along the direction away from the axis of the annular cone, the conical surface of the annular cone is obliquely arranged towards the direction close to the lower joint short circuit.
In another specific embodiment, the conical surface of the annular cone is 45 °.
In another specific embodiment, the annular protrusion is an annular cylinder.
In another specific embodiment, the upper joint short circuit comprises a high-pressure sealing contact pin, an upper joint short circuit shell and a pressure plate;
the upper joint short circuit shell is connected with the positioner device, the high-pressure sealing contact pin and the pressing plate are installed on the upper joint short circuit shell, the positioner device is connected with the high-pressure sealing contact pin through a connecting wire signal, and the connecting wire penetrates through the pressing plate.
In another specific embodiment, the lower short joint comprises a high pressure seal receptacle component and a lower short joint housing;
the high-pressure sealing jack component is installed on the lower joint short-circuit shell, and the lower joint short-circuit shell is connected with the perforating gun in a sealing mode through the high-pressure sealing jack component.
According to the utility model discloses an each embodiment can make up as required wantonly, and the embodiment that obtains after these combinations is also in the utility model discloses the scope is the utility model discloses a part of the concrete implementation mode.
The utility model provides an instrument for assisting pump sending perforation, be connected the top and the locator device of top connection short circuit, be connected the bottom and the perforating gun of lower clutch short circuit and use, when the pump sending fluid acts on the pump sending short circuit, the pump sending fluid is formed with the rotary motion between the ring channel, thereby produce the vortex, make the axial pressure of pump sending short circuit increase along the fluidic flow direction of pump sending, cause the instrument to form pressure differential, and then increased the atress of instrument, thrust grow promptly, reduced the pump and taken off the risk.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without any novelty.
Fig. 1 is a schematic sectional structure view of an upper joint short circuit and a lower joint short circuit provided in the embodiment of the present invention when the upper joint short circuit and the lower joint short circuit are connected with a pump effect short circuit in a split type;
fig. 2 is a schematic cross-sectional structural view of the upper joint short circuit and the lower joint short circuit provided in the embodiment of the present invention when they are integrally connected with the pump effect short circuit, respectively;
fig. 3 is a schematic cross-sectional structural view of an annular protrusion provided in an embodiment of the present invention.
Wherein, in fig. 1-3:
the pump effect short circuit comprises an upper connector short circuit 1, a lower connector short circuit 2, a pump effect short circuit 3, an annular groove 301, an annular protrusion 302 and a groove 303.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without making novelty work belong to the protection scope of the present invention.
As shown in figures 1-2, the utility model provides a tool for assisting pumping perforation, the tool that uses this kind of structure is used for the small diameter perforating gun pumping of cover change horizontal well or big sleeve pipe horizontal well, has realized under less safe discharge capacity, provides great thrust for the tool to reduce the risk that the pump takes off.
The instrument includes top connection short circuit 1, lower clutch short circuit 2 and pump effect short circuit 3, and the structure of top connection short circuit 1, lower clutch short circuit 2 and pump effect short circuit 3 is all unlimited. The top of top connection short circuit 1 is connected with the locator device, and top connection short circuit 1 can be dismantled with the locator device and be connected.
The bottom of top connection short circuit 1 is connected with the top of pump efficiency short circuit 3, specifically, the bottom of top connection short circuit 1 can be dismantled with the top of pump efficiency short circuit 3 and be connected, as shown in fig. 1, for example, threaded connection or buckle connection etc.. It should be noted that the upper joint short circuit 1 and the pump effect short circuit 3 may also be connected by welding or integrally molding, or the like, which is not detachable, as shown in fig. 2.
The bottom of pump efficiency short circuit is connected with the top of lower clutch short circuit 2, specifically, the bottom of pump efficiency short circuit 3 can be dismantled with the top of lower clutch short circuit 2 and be connected, as shown in fig. 1, for example, threaded connection or buckle connection etc.. It should be noted that the pump effect short circuit 3 and the lower joint short circuit 2 may also be connected by welding or integrally molding, or the like, which is not detachable, as shown in fig. 2.
The bottom of lower clutch short circuit 2 is connected with the perforating gun, specifically, the bottom of lower clutch short circuit 2 can be dismantled with the perforating gun and be connected, for example, threaded connection or buckle connection etc..
The top connection short circuit 1, the lower clutch short circuit 2 and the pump effect short circuit 3 are arranged with the same axle center, and at least 1 annular groove 301 has been seted up along the axial of pump effect short circuit 3 on the pump effect short circuit 3, and switches on between the adjacent annular groove 301.
The utility model provides a tool for assisting pump sending perforation, be connected the top and the locator device of top connection short circuit 1, be connected the bottom and the perforating gun of lower clutch short circuit 2 and use, when the pump sending fluid acts on the pump sending short circuit, the pump sending fluid is formed with the rotary motion between ring channel 301, thereby produce the vortex, make axial pressure of pump sending short circuit increase along the fluidic flow direction of pump sending, cause the instrument to form pressure differential, and then the atress of instrument has been increased, thrust grow promptly, the risk is taken off to the pump has been reduced.
In some embodiments, the pump effect sub 3 comprises a plurality of annular protrusions 302 connected end to end, and an annular groove 301 is formed between adjacent annular protrusions 302. Specifically, the shape of the annular groove 301 is not limited as long as it satisfies the requirement that the pumped fluid can enter the annular groove 301, and the structure that generates the vortex flow in the annular groove 301 all belongs to the protection scope of the present invention.
Taking the number of the annular protrusions 302 as an example, the length of the pump effect short circuit 3 is 1000mm, the width of the annular groove 301 is 20mm, the groove depth is 10mm, and the groove interval is 30 mm.
The annular protrusions 302 may be welded together, integrally formed, or detachably connected together, for example, by screwing.
The pump effect short circuit 3 and the upper joint and the lower joint are respectively provided with an accommodating groove for accommodating pumped fluid.
Further, the utility model discloses a seted up recess 303 on the protruding 302 lateral wall of annular, as shown in fig. 3, adjacent ring channel 301 is switched on at the both ends of recess 303, and recess 303 is logical groove promptly, and 2 adjacent ring channels 301 are switched on respectively at the both ends of recess 303.
The grooves 303 provide a passage for pumped fluids, prevent frac sand and other particulate materials in the wellbore from adhering to the surface of the pump short 3, and prevent the tool from seizing sand.
The number and shape of the grooves 303 are not limited, and there may be 1 or more grooves 303, and when there are a plurality of grooves 303, it is preferable that the grooves 303 are uniformly distributed on the side wall of the annular protrusion 302 along the circumferential direction of the annular protrusion 302.
It should be noted that a through hole may be directly formed in the end surface of the annular protrusion 302, and 2 annular grooves 301 may be communicated through the through hole.
Further, the utility model discloses a number of recess 303 is a plurality of, and along the bellied circumference equipartition of hoop on the bellied 302 lateral wall of annular. The number and shape of the grooves 303 are not limited, and may be set as needed.
Taking 6 grooves 303 as an example, the grooves 303 have a depth of 3mm and a width of 12mm and are uniformly distributed at 60 degrees.
In some embodiments, the annular protrusion 302 is an annular cone, and it should be noted that the shape of the annular protrusion 302 is not limited to the annular cone, and may be other shapes, such as an annular cylinder, etc.
Further, the utility model discloses a along the axis direction of keeping away from the annular cone, the conical surface of annular cone sets up to the direction slope that is close to lower clutch short circuit 2, and the pump sending fluid of being convenient for gets into ring channel 301 to produce the vortex in ring channel 301.
Furthermore, the utility model discloses a conical surface of annular cone is 45, understandably, the conical surface angle of annular cone is not restricted to be 45, in practical application, also can set up conical surface angle and be greater than or be less than 45.
In some embodiments, the upper joint short circuit 1 comprises a high-pressure sealing contact pin, an upper joint short circuit 1 shell and a pressing plate, the upper joint short circuit 1 shell is connected with the positioner device, the high-pressure sealing contact pin and the pressing plate are both mounted on the upper joint short circuit 1 shell, the positioner device is in signal connection with the high-pressure sealing contact pin through a connecting wire, and the connecting wire penetrates through the pressing plate.
In some embodiments, the lower joint short circuit 2 comprises a high-pressure sealing jack component and a lower joint short circuit 2 shell, the high-pressure sealing jack component is installed on the lower joint short circuit 2 shell, the lower joint short circuit 2 shell and the perforating gun are in sealing connection with the perforating gun through the high-pressure sealing jack component, and the sealing performance of the perforating gun and the lower joint short circuit 2 shell is improved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in an article or device that comprises the element.
The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the core concepts of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (10)
1. The tool for assisting pumping perforation is characterized by comprising an upper joint short circuit, a lower joint short circuit and a pump effect short circuit;
the top end of the upper joint short circuit is connected with the positioner device, the bottom end of the upper joint short circuit is connected with the top end of the pump effect short circuit, the bottom end of the pump effect short circuit is connected with the top end of the lower joint short circuit, and the bottom end of the lower joint short circuit is connected with the perforating gun;
at least 1 annular groove is seted up along the axial of pump effect short circuit on the pump effect short circuit, and switches on between the adjacent annular groove.
2. The tool of claim 1, wherein the pump-effect sub comprises a plurality of annular protrusions connected end-to-end in series;
the annular groove is formed between the adjacent annular bulges.
3. The tool as claimed in claim 2, wherein a groove is formed on a side wall of the annular protrusion, and two ends of the groove are communicated with adjacent annular grooves.
4. The tool according to claim 3, wherein the number of the grooves is plural, and the grooves are uniformly distributed on the side wall of the annular protrusion along the axial direction of the annular protrusion.
5. The tool of claim 2, wherein the annular protrusion is an annular cone.
6. The tool of claim 5, wherein the conical surface of the annular cone is inclined in a direction away from the axis of the annular cone toward the lower connector sub.
7. The tool of claim 5, wherein the conical surface of the annular cone is 45 °.
8. The tool of claim 2, wherein the annular protrusion is an annular cylinder.
9. The tool of claim 1, wherein the upper joint short comprises a high pressure sealing pin, an upper joint short housing and a pressure plate;
the upper joint short circuit shell is connected with the positioner device, the high-pressure sealing contact pin and the pressing plate are installed on the upper joint short circuit shell, the positioner device is connected with the high-pressure sealing contact pin through a connecting wire signal, and the connecting wire penetrates through the pressing plate.
10. The tool of any one of claims 1-9, wherein the lower sub short comprises a high pressure seal receptacle component and a lower sub short housing;
the high-pressure sealing jack component is installed on the lower joint short-circuit shell, and the lower joint short-circuit shell is connected with the perforating gun in a sealing mode through the high-pressure sealing jack component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121137494.XU CN215169917U (en) | 2021-05-25 | 2021-05-25 | Tool for assisting pumping perforation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121137494.XU CN215169917U (en) | 2021-05-25 | 2021-05-25 | Tool for assisting pumping perforation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215169917U true CN215169917U (en) | 2021-12-14 |
Family
ID=79375878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121137494.XU Active CN215169917U (en) | 2021-05-25 | 2021-05-25 | Tool for assisting pumping perforation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215169917U (en) |
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2021
- 2021-05-25 CN CN202121137494.XU patent/CN215169917U/en active Active
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