Nitrogen foam fluid continuous sand washing tool
By introducing crushing components and adjustment rings into the sand-pulling tool, the problem of hard sand and gravel in oil wells in the prior art is solved, and efficient sand and gravel crushing and nitrogen foam fluid flow control is achieved, which improves sand-pulling efficiency and oil well cleaning effect.
Patent Information
- Application Number
- CN202520632566.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-07
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2035-04-07
AI Technical Summary
Existing sand-flushing tools directly spray nitrogen foam fluid in the oil wells is difficult to remove hard sand and gravel, resulting in clogging and inefficiency, and staff need to replace tools to clean them.
A nitrogen foam fluid continuous sand flushing tool is designed, which includes spray pipes and crushing components, crushing sand and gravel during sand flushing through a conical crushing shaft and gear system to avoid clogging, and control the flow of nitrogen foam fluid through a regulatory ring.
Effectively crush harder sand and gravel, improve sand flushing efficiency, reduce blockage, avoid the need for staff to replace tools, and improve the oil well cleaning effect.
Smart Images
Figure CN222863347U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of sand flushing of oil and gas wells in oil fields, in particular to a nitrogen foam fluid continuous sand flushing tool. Background Art
[0002] At present, sand production from the formation is a very common phenomenon during the exploitation of oil wells, and nitrogen foam fluid is usually used to flush the sand inside.
[0003] Existing sand flushing tools are usually tubular structures, which are placed in oil wells and then sprayed with nitrogen foam fluid for sand flushing. However, since fixed sand and gravel in oil wells may be seriously blocked or the sand and gravel are relatively hard, it is difficult to remove the sand and gravel in the oil well by directly spraying nitrogen foam fluid, which requires workers to remove the spraying pipe and use other tools to clean the sand and gravel in the oil well. This is not only inefficient, but also the replacement process is cumbersome and requires a lot of labor and time. Therefore, we propose a nitrogen foam fluid continuous sand flushing tool. Utility Model Content
[0004] The utility model aims to provide a nitrogen foam fluid continuous sand flushing tool. By setting a crushing component, specifically in the process of sand flushing, when the motor is started to drive the gear to rotate, the gear will drive the conical crushing shaft to rotate together through the internal gear ring, and the conical crushing shaft will crush the sand and gravel in the well, which can effectively crush the harder sand and gravel, improve the sand flushing effect, do not need the staff to change the tool for processing, improve the sand flushing efficiency, solve the problem that the existing sand flushing tool directly sprays the nitrogen foam fluid for sand flushing, but because the fixed sand and gravel in the oil well may be seriously blocked or the sand and gravel are relatively hard, it is difficult to remove the sand and gravel in the oil well by directly spraying the nitrogen foam fluid, so that the staff needs to take out the spraying pipe and then use other tools to clean the sand and gravel in the oil well, resulting in low efficiency.
[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:
[0006] The utility model discloses a nitrogen foam fluid continuous sand flushing tool, comprising a spray pipe, a spray head fixedly connected to the top of the spray pipe, a crushing assembly arranged inside the spray head, a sewage discharge assembly arranged on the right side of the spray pipe, the crushing assembly comprising a conical crushing shaft, an annular seat rotatably connected to the inner side of the conical crushing shaft, a cavity arranged inside the annular seat, a motor 1 fixedly connected to the top of the inner wall of the annular seat, a gear fixedly connected to the top output end of the motor 1 by bolts, an inner gear ring fixedly connected to the inner wall of the conical crushing shaft, the gear meshingly connected to the inner gear ring, the sewage discharge assembly comprising a sewage discharge pipe, a fixed seat fixedly connected to the outer side of the sewage discharge pipe, and the left side of the fixed seat fixedly connected to the right side of the spray pipe; convex teeth are arranged on the outer surface of the conical crushing shaft for crushing rocks, thereby preventing the spray pipe from being blocked.
[0007] Furthermore, an annular notch is formed between the outer side of the annular seat and the inner side of the nozzle, an adjusting ring is arranged inside the annular notch, a plurality of connecting rods are fixedly connected to the bottom of the adjusting ring, and a plurality of fixing blocks are fixedly connected to the bottom of the connecting rods; the adjusting ring is used to adjust the size of the annular notch, control the flow rate of the nitrogen foam fluid sprayed out, and avoid waste.
[0008] Furthermore, a second motor is fixedly connected to the bottom of the inner wall of the annular seat, a threaded rod is fixedly connected to the bottom output end of the second motor by bolts, an internally threaded rod is threadedly connected to the outer surface of the threaded rod, the bottom of the internally threaded rod is fixedly connected to the top of the fixed block, a sealing ring is sleeved on the bottom of the annular seat, a limiting rod is fixedly connected to the right side of the bottom of the annular seat, the outer surface of the internally threaded rod is rotatably connected to the inner side of the annular seat, the sealing ring is sleeved on the outside of the internally threaded rod, the bottom of the limiting rod passes through the fixed block and extends to the outside, and the limiting rod and the fixed block are matched for sliding limiting; starting the second motor drives the threaded rod to rotate, and the internally threaded rod drives the fixed block to move downward, and at the same time the fixed block drives the adjusting ring to move together through the connecting rod to adjust the position of the adjusting ring.
[0009] Furthermore, the outer ring of the adjustment ring contacts the inner wall of the nozzle, the bottom of the adjustment ring is set as a conical surface, and a plurality of support blocks are fixedly connected to the outer surface of the annular seat, and the side of the support block away from the annular seat is fixedly connected to the inner wall of the nozzle; since the bottom of the adjustment ring is set as a conical surface, it can play a role in guiding flow, so that the nitrogen foam fluid can be discharged more smoothly.
[0010] Furthermore, a liquid suction pump is fixedly connected to the inside of the sewage pipe, and a breaking component is arranged above the liquid suction pump. The breaking component includes a fixing frame fixedly connected to the inner wall of the sewage pipe, and a baffle shell is fixedly connected to the bottom of the fixing frame. A motor three is arranged inside the baffle shell, and the top of the motor three is fixedly connected to the bottom of the fixing frame. The top output end of the motor three is fixedly connected to a rotating shaft by bolts, and a plurality of breaking rods are fixedly connected to the outer surface of the rotating shaft, and a plurality of convex rods are fixedly connected to the top and bottom of the plurality of breaking rods; while flushing sand, the liquid suction pump in the sewage pipe is started to suck the liquid together with sand and gravel into the sewage pipe, and discharge them to the outside through the sewage pipe.
[0011] The utility model has the following beneficial effects:
[0012] 1. The utility model sets a crushing component. Specifically, during the sand flushing process, the starting motor drives the gear to rotate, and the gear drives the conical crushing shaft to rotate through the internal gear ring. The conical crushing shaft crushes the sand and gravel in the well, which can effectively crush the harder sand and gravel, improve the sand flushing effect, and do not need the staff to change tools for processing, thereby improving the sand flushing efficiency.
[0013] 2. The utility model sets a breaking component. Specifically, during the sewage discharge process, the motor is started to drive the rotating shaft to rotate, and the rotating shaft will drive a number of breaking rods to rotate together, and the convex rods will rotate together, so that the sand and gravel can be broken up, making it easier to be sucked into the sewage pipe and reducing blockage, thereby improving the cleaning effect of the oil well.
[0014] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0017] Figure 2 This is a schematic diagram of the front cross-sectional structure of the nozzle of the utility model;
[0018] Figure 3 For this utility model Figure 2 A is a schematic diagram of the enlarged structure of the middle part;
[0019] Figure 4 This is a schematic diagram of the overall structure of the adjustment ring of the utility model;
[0020] Figure 5 This is a schematic diagram of the top structure of the sewage pipe of the utility model;
[0021] Figure 6 It is a schematic diagram of the overall structure of the breaking component of the utility model.
[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0023] 1. Spray pipe; 11. Spray head; 12. Crushing assembly; 121. Conical crushing shaft; 211. Internal gear ring; 122. Annular seat; 221. Motor 1; 222. Gear; 223. Motor 2; 224. Threaded rod; 225. Internal threaded rod; 226. Sealing ring; 227. Limit rod; 123. Adjusting ring; 231. Connecting rod; 232. Fixed block; 124. Support block; 13. Drain assembly; 131. Drain pipe; 132. Fixed seat; 133. Liquid pump; 14. Breaking assembly; 141. Fixed frame; 142. Breaking rod; 143. Protruding rod; 144. Baffle shell; 145. Motor 3; 146. Rotating shaft. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] See also Figure 1-Figure 6As shown, the utility model is a nitrogen foam fluid continuous sand washing tool, including a spray pipe 1, a nozzle 11 is fixedly connected to the top of the spray pipe 1, a crushing assembly 12 is arranged inside the nozzle 11, a sewage discharge assembly 13 is arranged on the right side of the spray pipe 1, the crushing assembly 12 includes a conical crushing shaft 121, an annular seat 122 is rotatably connected to the inner side of the conical crushing shaft 121, the inside of the annular seat 122 is a cavity setting, a motor 221 is fixedly connected to the top of the inner wall of the annular seat 122, a gear 222 is fixedly connected to the top output end of the motor 221 by bolts, an inner gear ring 211 is fixedly connected to the inner wall of the conical crushing shaft 121, and the gear ring 211 is fixedly connected to the inner wall of the conical crushing shaft 121. The wheel 222 is meshedly connected with the inner gear ring 211, and the sewage discharge component 13 includes a sewage discharge pipe 131, and a fixing seat 132 is fixedly connected to the outer side of the sewage discharge pipe 131, and the left side of the fixing seat 132 is fixedly connected to the right side of the spraying pipe 1; by setting the crushing component 12, specifically in the process of sand flushing, the motor 221 is started to drive the gear 222 to rotate, and the gear 222 will drive the conical crushing shaft 121 to rotate together through the inner gear ring 211, and the conical crushing shaft 121 will crush the sand and gravel in the well, which can effectively crush the harder sand and gravel, improve the sand flushing effect, and do not need the staff to change tools for processing, thereby improving the sand flushing efficiency.
[0026] An annular notch is formed between the outer side of the annular seat 122 and the inner side of the nozzle 11 , and an adjusting ring 123 is arranged inside the annular notch. A plurality of connecting rods 231 are fixedly connected to the bottom of the adjusting ring 123 , and a fixing block 232 is fixedly connected to the bottom of the plurality of connecting rods 231 .
[0027] A motor 223 is fixedly connected to the bottom of the inner wall of the annular seat 122, and a threaded rod 224 is fixedly connected to the output end of the bottom of the motor 223 by bolts. An internal threaded rod 225 is threadedly connected to the outer surface of the threaded rod 224, and the bottom of the internal threaded rod 225 is fixedly connected to the top of the fixed block 232. A sealing ring 226 is sleeved on the bottom of the annular seat 122, and a limiting rod 227 is fixedly connected to the right side of the bottom of the annular seat 122. The outer surface of the internal threaded rod 225 is rotatably connected to the inner side of the annular seat 122, and the sealing ring 226 is sleeved on the outside of the internal threaded rod 225. The bottom of the limiting rod 227 passes through the fixed block 232 and extends to the outside, and the limiting rod 227 cooperates with the fixed block 232 in a sliding limit manner.
[0028] The outer circle of the adjustment ring 123 contacts the inner wall of the nozzle 11 , the bottom of the adjustment ring 123 is a conical surface, a plurality of support blocks 124 are fixedly connected to the outer surface of the annular seat 122 , and the side of the support block 124 away from the annular seat 122 is fixedly connected to the inner wall of the nozzle 11 .
[0029] A liquid pump 133 is fixedly connected to the inside of the sewage pipe 131, and a breaking component 14 is arranged above the liquid pump 133. The breaking component 14 includes a fixing frame 141 fixedly connected to the inner wall of the sewage pipe 131, and a baffle shell 144 is fixedly connected to the bottom of the fixing frame 141. A motor 3 145 is arranged inside the baffle shell 144. The top of the motor 3 145 is fixedly connected to the bottom of the fixing frame 141, and the top output end of the motor 3 145 is fixedly connected to a rotating shaft 146 by bolts. A plurality of breaking rods 142 are fixedly connected to the outer surface of the rotating shaft 146, and a plurality of convex rods 143 are fixedly connected to the top and bottom of the plurality of breaking rods 142; in the process of sewage discharge, the motor 3 145 is started to drive the rotating shaft 146 to rotate, and the rotating shaft 146 will drive the plurality of breaking rods 142 to rotate together, and the convex rods 143 will rotate together, so that the sand and gravel can be broken, so that it is easier to be sucked into the sewage pipe 131, and the blockage is reduced, thereby improving the cleaning effect of the oil well.
[0030] A specific application of this embodiment is:
[0031] When in use, the bottom of the spray pipe 1 is connected to the nitrogen foam fluid delivery pipeline, the nitrogen foam fluid is delivered to the spray pipe 1, the bottom of the sewage pipe 131 is connected to the sewage pipe, and then the spray pipe 1 is placed in the oil well. After being placed, the motor 1 221 is started to drive the gear 222 to rotate, and the gear 222 will drive the conical crushing shaft 121 to rotate together through the inner gear ring 211, and the conical crushing shaft 121 will crush the sand and gravel in the well, and the threaded rod 224 is driven to rotate clockwise by the starting motor 223, so that the inner threaded rod 225 drives the fixed block 232 to move downward, and the fixed block 232 is in The limit rod 227 slides on the fixing block 232 to move in a straight line. At the same time, the fixing block 232 drives the adjusting ring 123 to move downward together through the connecting rod 231. At this time, the adjusting ring 123 leaves the annular seat 122, and the nitrogen foam fluid is sprayed out from the annular notch between the annular seat 122 and the nozzle 11 to flush the sand in the well. The internal threaded rod 225 can be moved to different positions by rotating the threaded rod 224, so that the adjusting ring 123 can be moved to different positions, so that the size of the annular notch can be adjusted, and the flow rate of the nitrogen foam fluid sprayed can be controlled to avoid waste.
[0032] While flushing the sand, the liquid pump 133 in the sewage pipe 131 is started, and the liquid together with the sand and gravel are sucked into the sewage pipe 131, and discharged to the outside through the sewage pipe, and the motor 3 145 is started together, and drives the rotating shaft 146 to rotate, and the rotating shaft 146 drives several breaking rods 142 to rotate together, and the convex rod 143 rotates together, which can break the sand and gravel, making it easier to be sucked into the sewage pipe 131 and reduce blockage.
[0033] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0034] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A nitrogen foam fluid continuous sand washing tool, characterized in that: The invention comprises a spray pipe (1), the top of which is fixedly connected to a spray head (11), a crushing assembly (12) is arranged inside the spray head (11), a sewage discharge assembly (13) is arranged on the right side of the spray pipe (1), the crushing assembly (12) comprises a conical crushing shaft (121), an annular seat (122) is rotatably connected inside the conical crushing shaft (121), the inside of the annular seat (122) is provided with a cavity, and a motor is fixedly connected to the top of the inner wall of the annular seat (122). One (221), the top output end of the motor one (221) is fixedly connected to a gear (222) by bolts, the inner wall of the conical crushing shaft (121) is fixedly connected to an internal gear ring (211), the gear (222) is meshingly connected to the internal gear ring (211), and the sewage discharge component (13) includes a sewage discharge pipe (131), the outer side of the sewage discharge pipe (131) is fixedly connected to a fixing seat (132), and the left side of the fixing seat (132) is fixedly connected to the right side of the spray pipe (1).
2. A nitrogen foam fluid continuous sand washing tool according to claim 1, characterized in that: An annular notch is formed between the outer side of the annular seat (122) and the inner side of the nozzle (11), an adjusting ring (123) is arranged inside the annular notch, a plurality of connecting rods (231) are fixedly connected to the bottom of the adjusting ring (123), and a plurality of fixing blocks (232) are fixedly connected to the bottom of the connecting rods (231).
3. A nitrogen foam fluid continuous sand washing tool according to claim 2, characterized in that: The bottom of the inner wall of the annular seat (122) is fixedly connected to a second motor (223); the bottom output end of the second motor (223) is fixedly connected to a threaded rod (224) via bolts; the outer surface of the threaded rod (224) is threadedly connected to an internally threaded rod (225); the bottom of the internally threaded rod (225) is fixedly connected to the top of a fixed block (232); a sealing ring (226) is sleeved on the bottom of the annular seat (122); and a limiting rod (227) is fixedly connected to the right side of the bottom of the annular seat (122).
4. A nitrogen foam fluid continuous sand washing tool according to claim 3, characterized in that: The outer surface of the internally threaded rod (225) is rotatably connected to the inner side of the annular seat (122); the sealing ring (226) is sleeved on the outer side of the internally threaded rod (225); the bottom of the limiting rod (227) passes through the fixed block (232) and extends to the outside; the limiting rod (227) and the fixed block (232) are slidably limited in cooperation.
5. The nitrogen foam fluid continuous sand washing tool according to claim 4, characterized in that: The outer ring of the adjustment ring (123) contacts the inner wall of the nozzle (11); the bottom of the adjustment ring (123) is arranged as a conical surface; a plurality of support blocks (124) are fixedly connected to the outer surface of the annular seat (122); and the side of the support block (124) away from the annular seat (122) is fixedly connected to the inner wall of the nozzle (11).
6. A nitrogen foam fluid continuous sand washing tool according to claim 4, characterized in that: A liquid pump (133) is fixedly connected to the interior of the sewage pipe (131), and a breaking component (14) is arranged above the liquid pump (133). The breaking component (14) comprises a fixing frame (141) fixedly connected to the inner wall of the sewage pipe (131).
7. The nitrogen foam fluid continuous sand washing tool according to claim 6, characterized in that: The bottom of the fixing frame (141) is fixedly connected to a stopper shell (144), a motor three (145) is arranged inside the stopper shell (144), the top of the motor three (145) is fixedly connected to the bottom of the fixing frame (141), the top output end of the motor three (145) is fixedly connected to a rotating shaft (146) via bolts, the outer surface of the rotating shaft (146) is fixedly connected to a plurality of breaking rods (142), and the tops and bottoms of the plurality of breaking rods (142) are fixedly connected to a plurality of convex rods (143).