Water lifting blowout preventer

Abstract

The utility model discloses a water lifting blowout prevention device which comprises a well completion casing pipe and further comprises a blowout prevention assembly used for preventing high-pressure gas and water from splashing. The blowout prevention assembly comprises a conical barrel, a ring sleeve and flow guide pipes, the ring sleeve is fixedly connected into the conical barrel, water in the well completion sleeve flows into a cavity formed by the conical barrel and the ring sleeve after being sprayed out, the ring sleeve is attached to the well completion sleeve, and the flow guide pipes are symmetrically and fixedly connected to the two sides of the conical barrel; according to the utility model, a high-pressure gas-water mixture can be effectively prevented from splashing.

Description

Technical Field

[0001] This utility model belongs to the field of drilling technology, and in particular relates to a water lifting and blowout prevention device. Background Technology

[0002] When drilling large-diameter surface pipeline wells in coal mines, it is necessary to drain the liquid inside the well after completion. Usually, an air compressor is used to pump water to drain the liquid. However, during this process, the high-pressure air-water mixture is easily blown out of the borehole and splashes everywhere, which can easily cause water damage to the construction equipment and cause surface pollution. A structure to avoid the splashing of high-pressure air-water mixture is proposed. Utility Model Content

[0003] In view of the shortcomings of the existing technology, this utility model provides a water lifting and anti-spray device, which solves the above problems.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a water lifting and blowout prevention device, including a completion casing, and further including: a blowout prevention component for preventing high-pressure gas and water splashing; the blowout prevention component includes a cone, a ring, and a guide pipe, the ring being fixedly connected inside the cone, and water sprayed out from the completion casing flowing into the cavity formed by the cone and the ring, the ring fitting onto the completion casing, and guide pipes being symmetrically fixedly connected to both sides of the cone.

[0005] Beneficial effects

[0006] This utility model provides a water-lifting and anti-spraying device, which has the following advantages compared with the prior art:

[0007] The cone is then fitted onto the completion casing fixed in the well. The annular sleeve fits snugly against the completion casing. The user then tightens the bolts, securing them against the completion casing and ensuring a stable connection through the sharp protrusions. The cone is now fixed to the completion casing. The user then inserts the negative pressure hose of the air compressor through the base cylinder into the bottom of the well to begin water extraction. During this process, a high-pressure gas-water mixture is ejected from the completion casing and flows into the cavity formed by the annular sleeve and the cone, blocked by the cone. The user then activates the negative pressure pump inside the collection cylinder, allowing the high-pressure gas-water mixture to flow into the collection cylinder through guide pipes on both sides of the cone for storage. Solid impurities are filtered through a filter plate to prevent blockage in the collection cylinder. However, because the high-pressure gas-water mixture contains a significant amount of sediment, prolonged operation can cause blockage in the guide pipes. Therefore, [further steps are needed]. The negative pressure pump should be turned off periodically, and the motor should be started. This will cause the transmission gear fixedly connected to its output shaft to start rotating, and the gear meshing with it to start rotating synchronously. At this time, the base cylinder will drive the connecting frame fixedly connected to both sides to rotate synchronously, which will cause the connecting ring fixedly connected to it to rotate synchronously. Then, the bevel gear B fixedly connected to the connecting ring will rotate synchronously, which will cause the bevel gear A meshing with both sides of the bevel gear B to start rotating synchronously. At the same time, since the bevel gears B and A are made of highly wear-resistant materials, the impact of mud and sand on their transmission can be effectively reduced. At this time, the shaft fixedly connected to the center of the bevel gear A will start rotating synchronously, thereby pushing the mud and sand accumulated in the guide pipe into the cone barrel through the spiral conveyor rod, avoiding the accumulation of a large amount of mud and sand in the guide pipe, causing pipeline blockage, and thus preventing the high-pressure gas-water mixture from being discharged. Attached Figure Description

[0008] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0009] Figure 2 This is an enlarged schematic diagram of the gear structure of this utility model.

[0010] Figure 3 This is an enlarged cross-sectional view of the present invention.

[0011] Figure 4 This is a cross-sectional schematic diagram of the overall structure of this utility model.

[0012] Figure reference numerals: Completion casing 101, Blowout preventer assembly 2, Cone barrel 201, Ring sleeve 202, Guide pipe 203, Liquid collection cylinder 204, Filter plate 205, Shaft 206, Spiral conveyor rod 207, Bevel gear A 208, Bevel gear B 209, Connecting ring 301, Connecting frame 302, Base cylinder 303, Gear 304, Transmission gear 305, Motor 306, Bolt 307. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0014] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0015] Please see Figures 1-4 The present invention provides a water-lifting and blowout prevention device according to one embodiment, comprising a well completion casing 101, and further comprising:

[0016] Blowout preventer 2 is used to prevent high-pressure air and water spray.

[0017] The blowout preventer assembly 2 includes a cone 201, a ring 202, and a guide pipe 203. The ring 202 is fixedly connected inside the cone 201. After the water in the completion casing 101 is ejected, it flows into the cavity formed by the cone 201 and the ring 202. The ring 202 is attached to the completion casing 101. The guide pipes 203 are symmetrically fixedly connected to both sides of the cone 201.

[0018] Regarding the above examples, those skilled in the art should know that the implementation of the above technical solutions is not limited to the specific cone 201 described in the above embodiments. For example, the bottom of the cone 201 can be set as an outward inclined plate. The purpose of this setting is to facilitate the guidance of water flowing into it.

[0019] For the above examples, those skilled in the art should know that the implementation of the above technical solutions is not limited to the specific guide pipe 203 described in the above embodiments. For example, the connection between the guide pipe 203 and the cone 201 should be a certain distance from the bottom of the cone 201. The purpose of this setting is to reduce the amount of mud and sand entering the guide pipe 203.

[0020] Specifically, the other end of the guide pipe 203 is fixedly connected to the liquid collection cylinder 204. The liquid collection cylinder 204 is equipped with a negative pressure pump for diverting water. The bottom of the cone 201 is threaded with a bolt 307, which is used to tighten the well completion casing 101.

[0021] For the above examples, those skilled in the art should know that when implementing the above technical solutions, it is not limited to the specific bolt 307 described in the above embodiments. For example, the surface of the bolt 307 that contacts the completion casing 101 can be set as a relatively sharp protrusion. The purpose of this setting is to facilitate the increase of the stability of its connection with the completion casing 101.

[0022] Specifically, a filter plate 205 is fixedly connected to the guide pipe 203, a shaft 206 is rotatably connected to the filter plate 205, and a spiral conveying rod 207 is fixedly connected to the shaft 206.

[0023] For the above examples, those skilled in the art should know that the implementation of the above technical solutions is not limited to the specific spiral conveying rod 207 described in the above embodiments. For example, the spiral conveying rod 207 may be provided with multiple through holes to avoid it being connected too tightly to the guide pipe 203, which would prevent water from flowing in the guide pipe 203.

[0024] Specifically, the other end of the shaft 206 is fixedly connected to the bevel gear A208, the bevel gear A208 is meshed with the bevel gear B209, and a connecting ring 301 is fixedly connected to the bevel gear B209. The connecting ring 301 is rotatably connected to the outer wall of the ring sleeve 202.

[0025] Regarding the above examples, those skilled in the art should know that the implementation of the above technical solutions is not limited to the specific bevel gears B209 and A208 described in the above embodiments. For example, the bevel gears B209 and A208 should be made of materials with high wear resistance. The purpose of this arrangement is to avoid excessive wear, which would prevent effective transmission.

[0026] For the above examples, those skilled in the art should know that the implementation of the above technical solutions is not limited to the specific ring 202 described in the above embodiments. For example, a sealing gasket should be provided at the connection between the ring 202 and the completion casing 101. The purpose of this setting is to increase the tightness of the connection through this setting, thereby preventing water from seeping out from the gaps at the connection.

[0027] Specifically, the connecting ring 301 is symmetrically fixedly connected to the two sides of the connecting frame 302, and the other end of the connecting frame 302 is fixedly connected to the base cylinder 303. The base cylinder 303 is rotatably connected to the conical barrel 201 at the bottle mouth of the conical barrel 201.

[0028] Specifically, a gear 304 is fixedly connected to the base cylinder 303, the gear 304 meshes with a transmission gear 305, the transmission gear 305 is fixedly connected to the output shaft of the motor 306, and the motor 306 is fixedly connected to the cone 201.

[0029] In this embodiment of the invention, the cone 201 is then fitted onto the completion casing 101 fixed in the well. At this time, the ring 202 fits against the completion casing 101. The user then tightens the bolt 307, causing the bolt 307 to press against the completion casing 101. The sharp protrusion on the bolt ensures a stable connection between the bolt 201 and the completion casing 101. The cone 201 is then fixed onto the completion casing 101. Subsequently, the user inserts the negative pressure pipe of the air compressor through the base cylinder 303 into the bottom of the well to begin water extraction. During this process, high-pressure air... The water mixture is ejected from the completion casing 101 and flows into the cavity formed by the annular sleeve 202 and the cone 201 under the obstruction of the cone 201. At this time, the user starts the negative pressure pump installed in the collection cylinder 204, so that the high-pressure gas-water mixture flows from the guide pipes 203 set on both sides of the cone 201 into the collection cylinder 204 for storage. Solid impurities can be filtered through the filter plate 205 to prevent them from flowing into the collection cylinder 204 and causing blockage. Since the high-pressure gas-water mixture contains a lot of mud and sand, long-term operation will cause the guide pipes to become contaminated. Since 203 is blocked, the user should periodically turn off the negative pressure pump and start the motor 306, so that the transmission gear 305 fixedly connected to its output shaft starts to rotate, and the gear 304 meshing with it starts to rotate synchronously. At this time, the base cylinder 303 drives the connecting frame 302 fixedly connected to both sides to rotate synchronously, so that the connecting frame 302 drives the connecting ring 301 fixedly connected to it to rotate synchronously. At this time, the bevel gear B209 fixedly connected to the connecting ring 301 rotates synchronously, so that the bevel gear A208 meshing with both sides of the bevel gear B209 starts to rotate synchronously. At the same time, since the bevel gear B209 and bevel gear A208 are made of high wear-resistant materials, the impact of mud and sand on its transmission can be effectively reduced. At this time, the shaft 206 fixedly connected to the center of the bevel gear A208 starts to rotate synchronously, so that the mud and sand accumulated in the guide pipe 203 is pushed into the cone 201 through the spiral conveying rod 207, avoiding the accumulation of a large amount of mud and sand in the guide pipe 203, causing pipeline blockage, and thus preventing the high-pressure gas-water mixture from being discharged.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] The term "fixed connection" as used in this application refers to a connection in which parts or components are fixed without any relative movement. This includes both detachable and non-detachable connections.

[0032] (1) Detachable connection: The components are fixed together using screws, splines, wedges, etc. This type of connection can be disassembled during maintenance without damaging the parts. However, the specifications of the connecting parts used must be correct (such as the length of the bolts, keys, wedges) and properly tightened.

[0033] (2) Non-removable connections: These mainly refer to welding, riveting, and tenon joints. Since disassembly requires forging, sawing, or oxyacetylene cutting for repair or replacement, the parts generally cannot be reused. At the same time, attention should be paid to process quality, technical inspection, and remedial measures (such as correction and polishing) during connection.

[0034] The sliding connection referred to in this application means that the component can slide along a linear trajectory, and the hinge referred to in this application means that the component can rotate along an axial constraint.

[0035] In some cases, the sliding connection and hinge referred to in this application may also be damped, enabling the component to maintain in the desired position.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A water kick prevention device comprising a completion casing (101), characterized in that, Also include: The blowout preventer (2) is used to avoid high pressure water splash; The blowout preventer (2) includes a cone barrel (201), a ring sleeve (202) and a flow guide pipe (203), the ring sleeve (202) is fixedly connected in the cone barrel (201), the water in the completion casing (101) is sprayed to the cavity formed by the cone barrel (201) and the ring sleeve (202), the ring sleeve (202) is attached to the completion casing (101), and the cone barrel (201) is fixedly connected with the flow guide pipe (203) on both sides.

2. The water kick-off device of claim 1, wherein, The other end of the flow guide pipe (203) is fixedly connected with the liquid collecting cylinder (204), the liquid collecting cylinder (204) is provided with a negative pressure pump for draining water, the bottom of the cone barrel (201) is threadedly connected with a bolt (307), and the bolt (307) is used to abut against the completion casing (101).

3. The water kick-off device of claim 1, wherein, The flow guide pipe (203) is fixedly connected with a filter plate (205), the filter plate (205) is rotatably connected with a shaft (206), and the shaft (206) is fixedly connected with a spiral conveying rod (207).

4. The water kick-off device of claim 3, wherein, The other end of the shaft (206) is fixedly connected with a bevel gear A (208), the bevel gear A (208) is meshingly connected with a bevel gear B (209), the bevel gear B (209) is fixedly connected with a connecting ring (301), and the connecting ring (301) is rotatably connected to the outer wall of the ring sleeve (202).

5. The water kick-off device of claim 4, wherein, The connecting ring (301) is fixedly connected with a connecting frame (302) on both sides, the other end of the connecting frame (302) is fixedly connected with a base cylinder (303), and the base cylinder (303) is rotatably connected with the cone barrel (201) at the bottle mouth of the cone barrel (201).

6. The water kick-off device of claim 5, wherein, The base cylinder (303) is fixedly connected with a gear (304), the gear (304) is meshingly connected with a transmission gear (305), the transmission gear (305) is fixedly connected to the output shaft of the motor (306), and the motor (306) is fixedly connected with the cone barrel (201).

7. The water kick-off device of claim 1, wherein, The ring sleeve (202) and the completion casing (101) should be provided with a sealing rubber pad.

8. The water kick-off device of claim 1, wherein, The bottom of the cone barrel (201) is provided as an outwardly inclined inclined plate.

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