Well killing manifold with sand prevention and throttling functions

Abstract

The utility model discloses a well killing manifold with sand prevention and throttling functions, and relates to the technical field of well killing manifolds. The well killing manifold with the sand prevention and throttling functions comprises a bottom plate and a throttling well killing manifold fixedly arranged above the bottom plate, a liquid inlet pipe of the throttling well killing manifold is fixedly provided with a filter box in a penetrating mode, and the well killing manifold has the technical effects that efficient collection and convenient cleaning of gravel are achieved through a collecting mechanism, meanwhile, the good sealing performance and stability are achieved, and the well killing manifold is convenient to use. Gravel generated by filtering slides into the collecting frame through the inclined block, the connecting frame is manually moved upwards during cleaning, related components are driven to enable the extrusion block to move into the fixing sleeve, and the collecting frame can be easily taken down; and during reinstallation, the spring and the damper act to enable the extrusion plate to move downwards, the extrusion block extends out to support the collection frame, in addition, the collection frame and the filter box are tightly sealed through the sealing ring, the stability of the whole structure is ensured through the matching of the fixing frame and the fixing sleeve as well as the matching of the bolt and the connecting frame, and the reliable operation of equipment is ensured.

Description

Technical Field

[0001] This utility model relates to the field of well control manifold technology, specifically a well control manifold with sand control and throttling functions. Background Technology

[0002] Choke and kill manifolds are essential equipment for controlling well kicks and implementing oil and gas well pressure control technology. With the water jet closed, the choke valve is used to control a certain pressure, ensuring that the bottom hole pressure is always slightly higher than the formation pressure, thus preventing formation fluids from flowing further into the well. In addition, during well shut-in, the choke and kill manifold can achieve soft shut-in by releasing pressure through the choke tube. When the pressure inside the well rises to a certain limit, it will be ejected to protect the wellhead.

[0003] The fluid produced by actual oil wells often carries a large amount of sand and gravel impurities. Once these sand and gravel enter the well kill manifold, they will severely wear down critical components such as throttling devices and valves inside the manifold, resulting in reduced throttling accuracy and valve seal failure. This not only affects the normal operation of well kill operations but may also cause safety hazards. Therefore, a well kill manifold with sand prevention and throttling functions is proposed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a kill manifold with sand control and throttling functions. This solves the problem that once sand and gravel enter the kill manifold, they will severely wear down key components such as the throttling device and valves inside the manifold, resulting in reduced throttling accuracy and valve sealing failure. This not only affects the normal operation of kill operations but may also cause safety hazards.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: it includes a base plate and a choke and kill manifold fixedly installed above the base plate, wherein a filter box is fixedly installed through the inlet pipe of the choke and kill manifold, and a filtration mechanism and a collection mechanism are installed inside the filter box;

[0006] The collection mechanism is located below the filtration mechanism;

[0007] The collection mechanism includes a collection section and a fixing section;

[0008] The collecting part includes a collecting frame and a sealing ring, and the fixing part includes a fixing frame and a fixing sleeve;

[0009] The top surface of the collection frame is fixedly extended through the bottom surface of the filter box into the interior of the filter box. An inclined block is fixedly installed inside the filter box. A fixing frame is fixedly installed on the outer wall of the collection frame. The inner side of the fixing frame is slidably connected to the outer wall of the fixing sleeve. The outer wall of the fixing sleeve is fixedly connected to the outer wall of the filter box. Two squeezing blocks are slidably extended through the outer wall of the fixing sleeve into the interior of the fixing sleeve. The top surfaces of both squeezing blocks are in contact with the bottom surface of the fixing frame.

[0010] Preferably, the filtration mechanism includes a filter plate, and two limiting frames are fixedly provided on the inner side of the filter box. The inner sides of the two limiting frames are slidably connected to the outer wall of the filter plate, and the side of the filter plate near the inclined block is in contact with the outer wall of the inclined block.

[0011] Preferably, the outer wall of the collection frame is fixedly connected to the inner side of the sealing ring, and the top surface of the sealing ring is in contact with the bottom surface of the filter box.

[0012] Preferably, an extrusion plate is slidably disposed on the inner side of the filter box, and two control plates are hinged to the bottom surface of the extrusion plate. Two connecting plates are fixedly disposed on the adjacent side of the two extrusion plates, and the side of the two control plates close to the two connecting plates is hinged to the adjacent side of the two connecting plates. A wedge-shaped groove is opened on the inner side of the fixing sleeve, and a wedge-shaped block is slidably disposed on the inner wall of the wedge-shaped groove. The side of the wedge-shaped block close to the extrusion plate is fixedly connected to the outer wall of the extrusion plate.

[0013] Preferably, a spring and a damper are fixedly provided on the inner side of the fixed sleeve, and the bottom surfaces of the spring and the damper are fixedly connected to the top surface of the extrusion plate. The spring is initially in an extended state.

[0014] Preferably, the front of the fixing sleeve is provided with a sliding groove, and a connecting frame is slidably arranged on the inner wall of the sliding groove. The side of the connecting frame near the extrusion plate is fixedly connected to the outer wall of the extrusion plate. A fixing frame is fixedly arranged on the outer wall of the fixing sleeve. A bolt is threaded through the outer wall of the fixing frame and extends to the inner side of the fixing frame. The side of the bolt near the connecting frame contacts the inner side of the connecting frame.

[0015] Preferably, a through groove is provided on the top surface of the filter box, and a connecting block is slidably provided on the inner wall of the through groove, with the bottom surface of the connecting block being fixedly connected to the top surface of the filter plate.

[0016] This utility model provides a kill manifold with sand control and throttling functions. It has the following beneficial effects:

[0017] (i) This type of well control manifold with sand control and throttling function has a collection mechanism that enables efficient collection and convenient cleaning of sand and gravel, while also having good sealing and stability. The sand and gravel produced by filtration slides into the collection frame through the inclined block. During cleaning, the connecting frame is manually moved upward, which drives the relevant components to move the squeezing block into the fixed sleeve, and the collection frame can be easily removed. During reinstallation, the spring and damper cause the squeezing plate to move downward, and the squeezing block extends to support the collection frame. In addition, the collection frame and the filter box are tightly sealed by a sealing ring. The cooperation between the fixed frame and the fixed sleeve, and the bolts and the connecting frame ensures the stability of the overall structure and ensures reliable operation of the equipment.

[0018] (ii) The well control manifold with sand control and throttling function has a filter mechanism that efficiently filters the fluid entering the throttling manifold through a filter plate, blocking sand and gravel impurities, protecting key internal components, ensuring normal operation of the manifold, extending its service life and improving operational stability; at the same time, with the sliding connection between the filter plate and the limiting frame and the cooperation between the connecting block and the through groove, the filter plate can be easily installed, disassembled and maintained, ensuring good filtration performance. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the collection mechanism of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the fixing sleeve in the collection mechanism of this utility model;

[0022] Figure 4 This is a schematic diagram of the filter mechanism of this utility model;

[0023] Figure 5 This utility model Figure 3 Enlarged structural diagram of area A in the middle.

[0024] In the diagram: 1. Base plate; 2. Throttling and kill manifold; 3. Filter box; 4. Filtering mechanism; 41. Connecting block; 42. Filter plate; 43. Limiting frame; 5. Collection mechanism; 51. Collection frame; 52. Sealing ring; 53. Fixing frame; 54. Fixing sleeve; 55. Inclined block; 56. Spring; 57. Damper; 58. Connecting frame; 59. Bolt; 510. Fixing frame; 511. Extrusion block; 512. Connecting plate; 513. Wedge block; 514. Control plate; 515. Extrusion plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-5 The present invention provides a technical solution: including a base plate 1 and a choke and kill manifold 2 fixedly installed above the base plate 1, a filter box 3 fixedly installed through the inlet pipe of the choke and kill manifold 2, and a filter mechanism 4 and a collection mechanism 5 installed inside the filter box 3;

[0027] The collection mechanism 5 is located below the filtration mechanism 4;

[0028] The collection mechanism 5 includes a collection section and a fixing section;

[0029] The collecting part includes a collecting frame 51 and a sealing ring 52, and the fixing part includes a fixing frame 53 and a fixing sleeve 54;

[0030] The top surface of the collection frame 51 is fixedly extended through the bottom surface of the filter box 3 into the interior of the filter box 3. An inclined block 55 is fixedly installed inside the filter box 3. A fixed frame 53 is fixedly installed on the outer wall of the collection frame 51. The inner side of the fixed frame 53 is slidably connected to the outer wall of the fixed sleeve 54. The outer wall of the fixed sleeve 54 is fixedly connected to the outer wall of the filter box 3. Two extrusion blocks 511 are slidably extended through the outer wall of the fixed sleeve 54 into the interior of the fixed sleeve 54. The top surfaces of both extrusion blocks 511 are in contact with the bottom surface of the fixed frame 53. The outer wall of the collection frame 51 is fixedly connected to the inner side of the sealing ring 52. The top surface of the sealing ring 52 is in extrusion contact with the bottom surface of the filter box 3. An extrusion plate 515 is slidably installed on the inner side of the filter box 3. Two control plates 514 are hinged to the bottom surface of the extrusion plate 515. Two connecting plates 512 are fixedly installed on the side of the two extrusion blocks 511 that are close to each other. The two control plates 514 are close to the two connecting plates 512. The side of the fixed sleeve 54 is hinged to one side of each of the two connecting plates 512. A wedge-shaped groove is provided on the inner side of the fixed sleeve 54. A wedge-shaped block 513 is slidably provided on the inner wall of the wedge-shaped groove. The side of the wedge-shaped block 513 near the extrusion plate 515 is fixedly connected to the outer wall of the extrusion plate 515. A spring 56 and a damper 57 are fixedly provided on the inner side of the fixed sleeve 54. The bottom surfaces of the spring 56 and the damper 57 are fixedly connected to the top surface of the extrusion plate 515. The spring 56 is initially in an extended state. A sliding groove is provided on the front of the fixed sleeve 54. A connecting frame 58 is slidably provided on the inner wall of the sliding groove. The side of the connecting frame 58 near the extrusion plate 515 is fixedly connected to the outer wall of the extrusion plate 515. A fixed frame 510 is fixedly provided on the outer wall of the fixed sleeve 54. A bolt 59 is threaded through the outer wall of the fixed frame 510 and extends to the inner side of the fixed frame 510. The side of the bolt 59 near the connecting frame 58 contacts the inner side of the connecting frame 58.

[0031] The filter mechanism 4 includes a filter plate 42. Two limiting frames 43 are fixedly installed on the inner side of the filter box 3. The inner sides of the two limiting frames 43 are slidably connected to the outer wall of the filter plate 42. The side of the filter plate 42 near the inclined block is in contact with the outer wall of the inclined block 55. A through groove is opened through the top surface of the filter box 3. A connecting block 41 is slidably installed on the inner wall of the through groove. The bottom surface of the connecting block 41 is fixedly connected to the top surface of the filter plate 42.

[0032] In use, the fluid entering the throttling and kill manifold can be filtered through the filter plate 42. Sand and gravel produced during filtration can enter the collection frame 51 through the inclined block 55. When the collection frame 51 is full, the connecting frame 58 is manually moved upwards. As the connecting frame 58 moves upwards, it drives the squeezing plate 515 to move upwards synchronously. When the squeezing plate 515 moves upwards, the two squeezing blocks 511 can be moved into the fixed sleeve 54 via two control plates 514, allowing the collection frame 51 to be removed. After removal... After emptying the collection frame 51, reinstall it. During installation, place the fixing frame 53 on the outer wall of the fixing sleeve 54. After insertion, the spring 56 and the damper 57 can make the squeezing plate 515 move downward. When the squeezing plate 515 moves downward, the two squeezing blocks 511 can extend to the outside of the fixing sleeve 54, thereby supporting the collection frame 51. Then manually tighten the bolt 59. After tightening the bolt 59, the connecting frame 58 can be fixed, thereby fixing the two squeezing blocks 511.

[0033] After the filter plate 42 has been filtering for a period of time, the filter plate 42 can be taken out. The filter plate 42 can be taken out of the filter box 3 by manually controlling the connecting block 41 to move upward. During installation, the filter plate 42 can be inserted into the filter box 3 and then limited by the two limit frames 43.

[0034] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0035] 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 kill manifold with sand control and throttling function, comprising a base plate (1) and a throttling kill manifold (2) fixedly disposed above the base plate (1), characterized in that: The throttling and kill manifold (2) has a filter box (3) fixedly installed through the inlet pipe. The filter box (3) is equipped with a filtration mechanism (4) and a collection mechanism (5). The collection mechanism (5) is located below the filtration mechanism (4); The collecting mechanism (5) includes a collecting part and a fixing part; The collecting part includes a collecting frame (51) and a sealing ring (52), and the fixing part includes a fixing frame (53) and a fixing sleeve (54). The top surface of the collection frame (51) is fixedly extended through the bottom surface of the filter box (3) to the inside of the filter box (3). An inclined block (55) is fixedly installed inside the filter box (3). A fixed frame (53) is fixedly installed on the outer wall of the collection frame (51). The inner side of the fixed frame (53) is slidably connected to the outer wall of the fixed sleeve (54). The outer wall of the fixed sleeve (54) is fixedly connected to the outer wall of the filter box (3). Two extrusion blocks (511) are slidably extended through the outer wall of the fixed sleeve (54) to the inside of the fixed sleeve (54). The top surfaces of the two extrusion blocks (511) are in contact with the bottom surface of the fixed frame (53).

2. A well control manifold with sand control and throttling function according to claim 1, characterized in that: The filtering mechanism (4) includes a filter plate (42). Two limiting frames (43) are fixedly provided on the inner side of the filter box (3). The inner sides of the two limiting frames (43) are slidably connected to the outer wall of the filter plate (42). The side of the filter plate (42) near the inclined block is in contact with the outer wall of the inclined block (55).

3. A well control manifold with sand control and throttling function according to claim 1, characterized in that: The outer wall of the collection frame (51) is fixedly connected to the inner side of the sealing ring (52), and the top surface of the sealing ring (52) is pressed against the bottom surface of the filter box (3).

4. A well control manifold with sand control and throttling function according to claim 1, characterized in that: The filter box (3) has a slidably arranged extrusion plate (515) on its inner side. Two control plates (514) are hinged to the bottom surface of the extrusion plate (515). Two connecting plates (512) are fixedly arranged on the side of the two extrusion blocks (511) that are close to each other. The side of the two control plates (514) that are close to the two connecting plates (512) is hinged to the side of the two connecting plates (512) that are close to each other. The inner side of the fixed sleeve (54) has a wedge groove. A wedge block (513) is slidably arranged on the inner wall of the wedge groove. The side of the wedge block (513) that is close to the extrusion plate (515) is fixedly connected to the outer wall of the extrusion plate (515).

5. A well control manifold with sand control and throttling function according to claim 1, characterized in that: A spring (56) and a damper (57) are fixedly installed on the inner side of the fixed sleeve (54). The bottom surfaces of the spring (56) and the damper (57) are fixedly connected to the top surface of the extrusion plate (515). The spring (56) is initially in an extended state.

6. A well control manifold with sand control and throttling function according to claim 4, characterized in that: The fixed sleeve (54) has a sliding groove on its front side, and a connecting frame (58) is slidably arranged on the inner wall of the sliding groove. The side of the connecting frame (58) near the extrusion plate (515) is fixedly connected to the outer wall of the extrusion plate (515). A fixed frame (510) is fixedly arranged on the outer wall of the fixed sleeve (54). A bolt (59) is threaded through the outer wall of the fixed frame (510) and extends to the inner side of the fixed frame (510). The side of the bolt (59) near the connecting frame (58) contacts the inner side of the connecting frame (58).

7. A well control manifold with sand control and throttling function according to claim 2, characterized in that: The filter box (3) has a through groove on its top surface, and a connecting block (41) is slidably provided on the inner wall of the through groove. The bottom surface of the connecting block (41) is fixedly connected to the top surface of the filter plate (42).

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