Oil well surface tubing network fouling reaction apparatus

Abstract

The utility model discloses an oil well ground pipe network scaling reaction device, including reaction cylinder and a plurality of scaling mechanism, the middle of reaction cylinder can accommodate a plurality of scaling piece along the line, and the both ends are equipped with the external connection structure for accessing the pipeline, the scaling mechanism is used to put and take out the scaling piece to the reaction cylinder, and it distributes along the reaction cylinder, and it includes the valve of being equipped on the reaction cylinder, the taking and placing cylinder of detachably being equipped on the valve, the hanger bar of movably sealingly passing the taking and placing cylinder, the scaling piece of detachably being equipped on the hanger bar inwards one end, when the valve opens, the hanger bar can drive the scaling piece to pass the valve from the taking and placing cylinder and enter the reaction cylinder, and the scaling piece is distributed with scaling hole, and the sealing locking structure is equipped on the hanger bar and the taking and placing cylinder, and when the hanger bar drives the scaling piece to extend into the reaction cylinder and is in position, the sealing locking structure can seal and lock the hanger bar and the taking and placing cylinder. The device can be in fixed point scaling and carry out fixed point cleaning, and there is no leakage when using, and the well is not stopped in operation.

Description

Technical Field

[0001] This utility model relates to the treatment of scale buildup inside pipes, specifically to a scale reaction device for oil well surface pipe networks. Background Technology

[0002] After the oilfield pipeline network is connected in series, scale-forming ions in the well fluid easily form inside the pipelines after mixing with the well fluid (such as barium strontium scale). This can cause blockages in individual well pipelines, valve assemblies, elbows, and other parts, not only preventing normal production but also frequently causing pressure buildup and perforation, resulting in significant environmental damage on the surface. Currently, the common method to prevent scale formation is to add barium strontium scale inhibitors into the pipelines, but the effect is unsatisfactory. Utility Model Content

[0003] The purpose of this invention is to provide a scaling reaction device for oil well surface pipelines. This device can perform targeted scaling and cleaning at specific locations, and it is leak-free and can operate without stopping the well.

[0004] The technical solution adopted in this utility model is: A scaling reaction device for oil well surface pipelines includes a reaction cylinder and several scaling mechanisms. The reaction cylinder can accommodate several scaling plates along its middle line and has external connection structures at both ends for connecting pipelines. The scaling mechanisms are used to put and take out scaling plates into the reaction cylinder. They are distributed along the reaction cylinder and include a valve on the reaction cylinder, a take-up and put-down cylinder detachably mounted on the valve, a hanging rod that is movably and sealingly passed through the take-up and put-down cylinder, and a scaling plate detachably mounted on the inward end of the hanging rod. When the valve is opened, the hanging rod can drive the scaling plate from the take-up and put-down cylinder through the valve into the reaction cylinder. The scaling plate has scaling holes distributed on it. The hanging rod and the take-up and put-down cylinder are provided with a sealing and locking structure. When the hanging rod drives the scaling plate into the reaction cylinder and reaches the desired position, the sealing and locking structure can seal and lock the hanging rod and the take-up and put-down cylinder.

[0005] Preferably, the scaling mechanisms are arranged at an angle to each other along the reaction cylinder.

[0006] Preferably, the scaling mechanism is arranged at a 45-degree angle on the upper part of the reaction cylinder, and two adjacent scaling mechanisms are located on the upper sides of the reaction cylinder, respectively.

[0007] Preferably, the scaling plate has multiple layers of spaced plates, with each layer having a different diameter of scaling pores.

[0008] Preferably, the scaling plate is provided on the inward end of the hanging rod via an adapter, and the scaling plate is provided with a hanging head. One end of the adapter is connected to the hanging head via a pin, and the other end is threadedly connected to the inward end of the hanging rod.

[0009] Preferably, the inner wall of the reaction vessel is provided with a coating to prevent scaling.

[0010] Preferably, the sealing and locking structure includes an internal thread on the pick-up and drop-out cylinder and an external thread on the hanging rod.

[0011] Preferably, the pick-and-place cylinder is provided with multiple sealing grooves and sealing rings, and the hanging rod passes through the pick-and-place cylinder through multiple sealing rings.

[0012] Preferably, the take-up and put-down cylinder is detachably mounted on the valve via threads.

[0013] Preferably, the external structure is a flange.

[0014] The beneficial effects of this utility model are: This device can perform targeted scaling and cleaning without leakage or well interruption during operation. In use, the reaction cylinder is connected to the pipeline as part of the oil well's surface network. All scaling mechanisms are installed, arranging the scaling plates along the line inside the reaction cylinder. The hanging rod and the pick-and-place cylinder are sealed and locked. When the well fluid passes through the reaction cylinder, it will not leak. Simultaneously, it is subjected to the shearing action of numerous scaling pores on the scaling plates, altering the flow velocity and flow pattern. Therefore, scaling ions from the well fluid inside the reaction cylinder are more easily precipitated and adhere to the scaling plates. After a certain period of use, a large amount of scale will accumulate on the scaling plates. To replace or clean the scaling plates, without stopping the well, first release the locking of the hanging rod and the pick-and-place cylinder. Then, the hanging rod carries the scaling plates from the reaction cylinder through the valve into the pick-and-place cylinder. During this process, due to the movable seal between the hanging rod and the pick-and-place cylinder, there will be no leakage. Then, close the valve, remove the pick-and-place cylinder, and remove the scaling plates for replacement or cleaning. Afterward, the replaced or cleaned scaling plates can be reinstalled. Attached Figure Description

[0015] Figure 1 This is a perspective view of the scaling reaction device for oil well surface pipelines in this utility model.

[0016] Figure 2 This is a cross-sectional view of the loading and unloading cylinder in this utility model.

[0017] Figure 3 This is a cross-sectional view of the hanging rod in this utility model.

[0018] Figure 4 This is a perspective view of the scaling plate in this utility model.

[0019] Figure 5 This is a perspective view of the adapter in this utility model.

[0020] In the diagram: 1-Reaction cylinder; 11-External structure; 2-Valve; 3-Pick-up cylinder; 31-External thread; 32-Sealing groove; 33-Internal thread; 4-Hanging rod; 41-Internal thread; 42-External thread; 5-Scale plate; 51-Hanging head; 52-Plate body; 53-Scale hole; 6-Adapter; 61-External thread; 62-Ear plate. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0023] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0024] The features and performance of this application will be further described in detail below with reference to the embodiments.

[0025] like Figures 1 to 4 As shown, this embodiment discloses a scaling reaction device for oil well surface pipelines, which includes a reaction cylinder 1 and several scaling mechanisms. Each scaling mechanism includes a valve 2, a loading / unloading cylinder 3, a hanging rod 4, and scaling plates 5. The reaction cylinder 1 has a central section capable of accommodating several scaling plates 5, and external connection structures 11 for connecting pipelines are provided at both ends. The scaling mechanisms are used to insert and remove the scaling plates 5 into the reaction cylinder 1. The scaling mechanisms are distributed along the reaction cylinder 1. Figure 1 Valve 2 is located on reaction cylinder 1. A pick-and-place cylinder 3 is detachably mounted on valve 2. A hanging rod 4 passes through the pick-and-place cylinder 3 in a movable and sealed manner. A scale-forming plate 5 is detachably mounted on the inward-facing end of the hanging rod 4. When valve 2 is opened, the hanging rod 4 can drive the scale-forming plate 5 from the pick-and-place cylinder 3 through valve 2 into reaction cylinder 1. The scale-forming plate 5 has scale-forming holes 53 distributed on it. A sealing and locking structure is provided on the hanging rod 4 and the pick-and-place cylinder 3. When the hanging rod 4 drives the scale-forming plate 5 into the reaction cylinder 1, the sealing and locking structure can seal and lock the hanging rod 4 and the pick-and-place cylinder 3. (See...) Figures 1 to 4 .

[0026] This device can perform targeted scaling and cleaning, and it operates without leakage or well interruption. In use, the reaction cylinder 1 is connected to the pipeline as part of the oil well surface pipeline network, and each scaling mechanism is installed in place, so that each scaling plate 5 is arranged along the line inside the reaction cylinder 1, and the hanging rod 4 and the pick-and-place cylinder 3 are sealed and locked. When the well fluid passes through the reaction cylinder 1, it will not leak, and at the same time, it will be subjected to the shearing action of the numerous scaling holes 53 on the multiple scaling plates 5, which changes the flow velocity and flow state. Therefore, the scaling ions of the well fluid in the reaction cylinder 1 are more likely to precipitate and adhere to the scaling plates 5. After a certain period of use, a large amount of scaling will be attached to the scaling plates 5. If the scaling plates 5 need to be replaced or cleaned, without stopping the well, first release the locking of the hanging rod 4 and the pick-and-place cylinder 3, and then drive the hanging rod 4 to move the scaling plate 5 from the reaction cylinder 1 into the pick-and-place cylinder 3 through the valve 2. During this process, because the hanging rod 4 and the pick-and-place cylinder 3 are in a movable seal, there will be no leakage. Then close the valve 2, remove the pick-and-place cylinder 3, and remove the scaling plate 5 for replacement or cleaning. After that, the replaced or cleaned scaling plate 5 can be reinstalled.

[0027] like Figure 1 As shown, in this embodiment, preferably, each scaling mechanism is arranged at an angle along the line of the reaction cylinder 1, and the scaling plates 5 arranged at an angle inside the reaction cylinder 1 can make the liquid flow in the reaction cylinder turbulent, making it easier to form scale; and the scaling mechanism is arranged at a 45-degree angle on the upper part of the reaction cylinder 1, with two adjacent scaling mechanisms located on the upper sides of the reaction cylinder 1 respectively.

[0028] like Figure 1 As shown, in this embodiment, preferably, the external structure 11 is a flange.

[0029] like Figure 2 As shown, in this embodiment, preferably, the pick-and-place cylinder 3 is provided with multiple sealing grooves 32 and sealing rings, and the hanging rod 4 passes through the pick-and-place cylinder 3 through multiple sealing rings to achieve dynamic sealing.

[0030] like Figure 2 As shown, in this embodiment, preferably, the take-up and put-down cylinder 3 is detachably mounted on the valve 2 via the external thread 31.

[0031] like Figure 2 and Figure 3 As shown, in this embodiment, preferably, the sealing and locking structure includes an internal thread 33 on the pick-up and put-out cylinder 3 and an external thread 42 on the hanging rod 4. Through the threaded connection, static sealing is achieved while locking.

[0032] like Figure 4 As shown, in this embodiment, preferably, the scaling plate 5 has multiple layers of spaced plates 52, and the diameter of the scaling holes 53 on each layer of plate 52 is different. The different diameter of the scaling holes 53 on each layer can change the liquid flow rate, making it easier for scaling ions to precipitate.

[0033] like Figures 3 to 5As shown, in this embodiment, preferably: the scale plate 5 is provided on the inward end of the hanging rod 4 through the adapter 6, the scale plate 5 is provided with the hanging head 51, the ear plate 62 at one end of the adapter 6 is connected to the hanging head 51 through the pin, and the external thread 61 at the other end is connected to the internal thread 41 at the inward end of the hanging rod 4.

[0034] In this embodiment, preferably, the inner wall of the reaction cylinder 1 is provided with a coating to prevent scaling, thereby avoiding scaling on the inner wall of the reaction cylinder 1.

[0035] The embodiments described above are some, but not all, of the embodiments of this application. The detailed description of the embodiments of this application is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

Claims

1. A scaling reaction device for oil well surface pipelines, characterized in that: It includes a reaction cylinder and several scaling mechanisms; the reaction cylinder has several scaling plates along its middle line and external structures for connecting pipelines at both ends; the scaling mechanisms are used to put and take out scaling plates into the reaction cylinder, and are distributed along the reaction cylinder. They include a valve on the reaction cylinder, a pick-and-place cylinder detachably mounted on the valve, a hanging rod that passes through the pick-and-place cylinder in a movable and sealed manner, and a scaling plate detachably mounted on the inward end of the hanging rod. When the valve is opened, the hanging rod can drive the scaling plate from the pick-and-place cylinder through the valve into the reaction cylinder. The scaling plate has scaling holes distributed on it. The hanging rod and the pick-and-place cylinder are equipped with a sealing and locking structure. When the hanging rod drives the scaling plate into the reaction cylinder and reaches the desired position, the sealing and locking structure can seal and lock the hanging rod and the pick-and-place cylinder.

2. The oil well surface pipeline scaling reaction device as described in claim 1, characterized in that: The scaling mechanisms are arranged at an angle along the reaction cylinder.

3. The oil well surface pipeline scaling reaction device as described in claim 2, characterized in that: The scaling mechanism is set at a 45-degree angle at the top of the reaction cylinder, with two adjacent scaling mechanisms located on the two sides of the top of the reaction cylinder.

4. The oil well surface pipeline scaling reaction device as described in claim 1, characterized in that: The scaling plate has multiple layers of spaced plates, with different diameter scaling holes on each layer.

5. The scaling reaction device for oil well surface pipelines as described in claim 1, characterized in that: The scaling plate is mounted on the inward end of the hanging rod via an adapter. The scaling plate is equipped with a hanging head. One end of the adapter is connected to the hanging head via a pin, and the other end is threaded to the inward end of the hanging rod.

6. The scaling reaction device for oil well surface pipelines as described in claim 1, characterized in that: The inner wall of the reaction vessel is coated to prevent scaling.

7. The oil well surface pipeline scaling reaction device as described in claim 1, characterized in that: The sealing and locking structure includes an internal thread on the pick-up and drop-out cylinder and an external thread on the hanging rod.

8. The scaling reaction device for oil well surface pipelines as described in claim 1, characterized in that: The pick-and-place cylinder is equipped with multiple sealing grooves and sealing rings, and the hanging rod passes through the pick-and-place cylinder through multiple sealing rings.

9. The scaling reaction device for oil well surface pipelines as described in claim 1, characterized in that: The pick-and-place cylinder is detachably mounted on the valve via threads.

10. The scaling reaction device for oil well surface pipelines as described in claim 1, characterized in that: The external structure is a flange.

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