Blowout prevention wellhead Christmas tree device

Abstract

The utility model discloses a blowout prevention wellhead Christmas tree device, and relates to the technical field of Christmas trees. The blowout prevention wellhead Christmas tree device comprises a mounting frame and Christmas tree equipment arranged on the inner side of the mounting frame, four moving wheels are fixedly arranged on the bottom face of the mounting frame, and a connecting mechanism and a lifting mechanism are arranged on the outer wall of the Christmas tree equipment; the connecting mechanism is located between the lifting mechanisms, and the technical effects are that the connecting mechanism realizes simple and stable connection between the Christmas tree equipment and the oil extraction wellhead through a connecting part formed by a fixing sleeve, an inserting block, a control ring, a connecting plate, a control plate, a fixing frame, a bolt and the like, and a sealing part formed by a sealing ring, a control threaded rod, a nut and a positioning rod is used for sealing the Christmas tree equipment and the oil extraction wellhead. The connecting device can effectively seal the connecting position of the control ring and the oil well, is reasonable in overall structural design, guarantees flexible movement and reliable locking of the control ring, guarantees stable connection and good sealing, reduces safety risks, avoids environmental pollution, and guarantees smooth oil extraction operation.

Description

Technical Field

[0001] This utility model relates to the field of wellhead technology, specifically to a blowout preventer wellhead ... Background Technology

[0002] A wellhead tree is a wellhead device used to extract oil. It is one of the main pieces of equipment in oil and gas wells for controlling and regulating oil and gas production. The wellhead tree is located at the opening at the top of the well and connects to the downhole production and oil-producing pipelines. The wellhead tree serves as an important barrier to isolate the top of the well from the external environment.

[0003] Flange connection is the main means of connecting the Christmas tree device to the wellhead. During the connection process, multiple bolt holes on the flange need to be precisely aligned and then fixed by tightening multiple bolts, which results in low efficiency during installation. Therefore, a blowout preventer wellhead Christmas tree device is proposed. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a blowout preventer wellhead production tree device, which solves the problem of low installation efficiency caused by the need to precisely align multiple bolt holes on the flange and tighten multiple bolts to fix it during the connection process.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: it includes a mounting frame and an oil well tree device installed inside the mounting frame. The bottom surface of the mounting frame is fixedly equipped with four moving wheels, and the outer wall of the oil well tree device is provided with a connecting mechanism and a lifting mechanism.

[0008] The connecting mechanism is located between the lifting mechanisms;

[0009] The connecting mechanism includes a connecting part and a sealing part;

[0010] The connecting part includes a fixed sleeve and four inserts, and the sealing part includes a sealing ring and a control threaded rod;

[0011] The inner side of the fixed sleeve is fixedly connected to the outer wall of the oil inlet pipe of the wellhead equipment. The four adjacent sides of the four inserts slide through the outer wall of the fixed sleeve and extend to the inner side of the fixed sleeve. A control ring is slidably provided on the outer wall of the fixed sleeve. Four connecting plates are fixedly provided on the distant sides of the four inserts. Four control plates are hinged to the top surfaces of the four connecting plates, and the top surfaces of the four control plates are hinged to the bottom surface of the control ring.

[0012] Preferably, the lifting mechanism includes a lifting block, the side of the lifting block near the tree equipment is fixedly connected to the outer wall of the tree equipment, a motor is fixedly installed on the inner side of the mounting frame, a lifting threaded rod is fixedly installed on the top surface of the motor output end, the top surface of the lifting threaded rod is threaded through the bottom surface of the lifting block and extends to the top of the lifting block, and the top surface of the lifting threaded rod is rotatably connected to the inner side of the mounting frame through a bearing seat.

[0013] Preferably, a sealing ring is slidably fitted on the outer wall of the oil inlet pipe of the oil production tree equipment, and a control threaded rod is fixedly installed on the top surface of the sealing ring. The top surface of the control threaded rod extends through the inner top surface of the fixed sleeve to the top of the fixed sleeve. A nut is rotatably installed on the top surface of the fixed sleeve through a bearing seat, and the inner surface of the nut is threadedly connected to the outer wall of the control threaded rod.

[0014] Preferably, a positioning rod is fixedly provided on the top surface of the sealing ring, and the top surface of the positioning rod slides through the inner top surface of the sealing ring and extends to the top of the sealing ring.

[0015] Preferably, a fixing frame is fixedly provided on the outer wall of the fixing sleeve, the outer wall of the fixing frame is slidably connected to the inner side of the control ring, and a bolt is threaded through the outer wall of the control ring and extends to the inner side of the fixing frame.

[0016] Preferably, two support plates are fixedly installed on the outer wall of the tree equipment, and two support hydraulic rods are fixedly installed on the inner side of the mounting frame. The top surfaces of the two support hydraulic rods are respectively fixedly connected to the bottom surfaces of the two support plates. Two limiting rods are vertically fixedly installed on the inner side of the mounting frame. Limiting plates are slidably sleeved on the outer walls of the two limiting rods. The side of the limiting plate near the tree equipment is fixedly connected to the outer wall of the tree equipment.

[0017] (III) Beneficial Effects

[0018] This invention provides a blowout preventer wellhead Christmas tree device. It has the following beneficial effects:

[0019] (i) The blowout preventer wellhead production tree device has a connection mechanism consisting of a fixed sleeve, a plug, a control ring, a connecting plate, a control plate, a fixed frame, bolts, etc., which enables a simple and stable connection between the production tree equipment and the production wellhead. The sealing part, consisting of a sealing ring, a control threaded rod, a nut, and a positioning rod, can effectively seal the connection between the two. Its overall structural design is reasonable, which not only ensures the flexible movement and reliable locking of the control ring, but also ensures a stable connection and good sealing, reduces safety risks, avoids environmental pollution, and ensures the smooth progress of oil production operations.

[0020] (ii) The blowout preventer wellhead production tree device has a lifting mechanism that uses a motor to drive the lifting threaded rod to rotate. It is equipped with a lifting block, support plate, limit rod and limit plate to realize the lifting and movement of the production tree equipment, which facilitates docking with the production wellhead. At the same time, the support hydraulic rod provides additional support to enhance the stability of the equipment. In addition, the cooperation of the moving wheels at the bottom of the mounting frame improves the mobility and adaptability of the device, reduces installation costs, and ensures efficient and smooth oil production operations. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the connection mechanism of this utility model;

[0023] Figure 3 This is a schematic diagram of the internal structure of the connecting mechanism of this utility model;

[0024] Figure 4 This is a schematic diagram of the lifting mechanism of this utility model;

[0025] Figure 5 This is a schematic diagram of the internal structure of the lifting mechanism of this utility model;

[0026] Figure 6 This utility model Figure 2 Enlarged structural diagram of area A in the middle.

[0027] In the diagram: 1. Mounting frame; 2. Tree starter equipment; 3. Connecting mechanism; 31. Fixing sleeve; 32. Control ring; 33. Insert block; 34. Sealing ring; 35. Positioning rod; 36. Control threaded rod; 37. Nut; 38. Control plate; 39. Connecting plate; 310. Fixing frame; 311. Bolt; 4. Lifting mechanism; 41. Supporting hydraulic rod; 42. Motor; 43. Lifting threaded rod; 44. Lifting block; 45. Support plate; 46. Limiting plate; 47. Limiting rod; 5. Casters. Detailed Implementation

[0028] 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.

[0029] Please see Figure 1-6The present invention provides a technical solution: including a mounting frame 1 and an oil well equipment 2 installed inside the mounting frame 1. Four moving wheels 5 are fixedly installed on the bottom surface of the mounting frame 1, and a connecting mechanism 3 and a lifting mechanism 4 are installed on the outer wall of the oil well equipment 2.

[0030] The connecting mechanism 3 is located between the lifting mechanisms 4;

[0031] The connecting mechanism 3 includes a connecting part and a sealing part;

[0032] The connecting part includes a fixed sleeve 31 and four inserts 33, and the sealing part includes a sealing ring 34 and a control threaded rod 36;

[0033] The inner side of the fixed sleeve 31 is fixedly connected to the outer wall of the oil inlet pipe of the Christmas tree equipment 2. The four adjacent inserts 33 slide through the outer wall of the fixed sleeve 31 and extend to the inner side of the fixed sleeve 31. A control ring 32 is slidably installed on the outer wall of the fixed sleeve 31. Four connecting plates 39 are fixedly installed on the opposite sides of the four inserts 33. Four control plates 38 are hinged to the top surfaces of the four connecting plates 39. The top surfaces of the four control plates 38 are hinged to the bottom surface of the control ring 32. A sealing ring 34 is slidably fitted on the outer wall of the oil inlet pipe of the Christmas tree equipment 2. A control threaded rod 36 is fixedly installed on the top surface of the sealing ring 34. The top surface of the threaded rod 36 extends through the inner top surface of the fixed sleeve 31 to the top of the fixed sleeve 31. The top surface of the fixed sleeve 31 is rotatably provided with a nut 37 through the bearing seat. The inner side of the nut 37 is threadedly connected to the outer wall of the control threaded rod 36. The top surface of the sealing ring 34 is fixedly provided with a positioning rod 35. The top surface of the positioning rod 35 slides through the inner top surface of the sealing ring 34 to the top of the sealing ring 34. The outer wall of the fixed sleeve 31 is fixedly provided with a fixing frame 310. The outer wall of the fixing frame 310 is slidably connected to the inner side of the control ring 32. The outer wall of the control ring 32 is threadedly provided with a bolt 311 extending to the inner side of the fixing frame 310.

[0034] The lifting mechanism 4 includes a lifting block 44, the side of which is near the tree equipment 2 is fixedly connected to the outer wall of the tree equipment 2. A motor 42 is fixedly installed on the inner side of the mounting frame 1. A lifting threaded rod 43 is fixedly installed on the top surface of the output end of the motor 42. The top surface of the lifting threaded rod 43 extends through the bottom surface of the lifting block 44 and above the lifting block 44. The top surface of the lifting threaded rod 43 is rotatably connected to the inner side of the mounting frame 1 through a bearing seat. Two support plates 45 are fixedly installed on the outer wall of the tree equipment 2. Two support hydraulic rods 41 are fixedly installed on the inner side of the mounting frame 1. The top surfaces of the two support hydraulic rods 41 are fixedly connected to the bottom surfaces of the two support plates 45 respectively. Two limit rods 47 are vertically fixedly installed on the inner side of the mounting frame 1. Limit plates 46 are slidably sleeved on the outer walls of the two limit rods 47. The side of the limit plates 46 near the tree equipment 2 is fixedly connected to the outer wall of the tree equipment 2.

[0035] In use, the mounting frame 1 is moved above the wellhead so that the inlet pipe of the tree equipment 2 is aligned with the wellhead. The motor 42 is turned on, which drives the lifting threaded rod 43 to rotate. When the lifting threaded rod 43 rotates, the tree equipment 2 can move up and down through the lifting block 44, the support plate 45 and the two limit rods 47. When the tree equipment 2 moves down, the wellhead can be fitted onto the outer wall of the inlet pipe of the tree equipment 2. After the fitting is completed, the motor 42 is turned off.

[0036] After the connection is completed, manually control the ring 32 to move downward. When the ring 32 moves downward, multiple control plates 38 can be used to insert multiple inserts 33 into the inner wall of the slot opened on the surface of the wellhead. After insertion, manually control the bolt 311 to rotate. After the bolt 311 is tightened, it can squeeze the inner side of the fixing frame 310, thereby fixing the height of the ring 32. After the ring 32 is fixed, multiple inserts 33 can be fixed. After the connection is completed, manually control the nut 37 to rotate. When the nut 37 rotates, the sealing ring 34 can be moved downward by controlling the threaded rod 36 and the positioning rod 35. When the sealing ring 34 moves downward, it can seal the connection between the wellhead and the inlet pipe of the tree equipment 2.

[0037] 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.

[0038] 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 blowout preventer wellhead Christmas tree device, comprising a mounting frame (1) and a Christmas tree device (2) disposed inside the mounting frame (1), characterized in that: The mounting frame (1) is fixedly provided with four moving wheels (5) on its bottom surface, and the oil well equipment (2) is provided with a connecting mechanism (3) and a lifting mechanism (4) on its outer wall. The connecting mechanism (3) is located between the lifting mechanisms (4); The connecting mechanism (3) includes a connecting part and a sealing part; The connecting part includes a fixing sleeve (31) and four inserts (33), and the sealing part includes a sealing ring (34) and a control threaded rod (36). The inner side of the fixed sleeve (31) is fixedly connected to the outer wall of the oil inlet pipe of the oil production tree equipment (2). The four inserts (33) on the same side slide through the outer wall of the fixed sleeve (31) and extend to the inner side of the fixed sleeve (31). A control ring (32) is slidably provided on the outer wall of the fixed sleeve (31). Four connecting plates (39) are fixedly provided on the opposite side of the four inserts (33). Four control plates (38) are hinged to the top surface of the four connecting plates (39). The top surface of the four control plates (38) is hinged to the bottom surface of the control ring (32).

2. The blowout preventer wellhead Christmas tree device according to claim 1, characterized in that: The lifting mechanism (4) includes a lifting block (44). The side of the lifting block (44) near the tree equipment (2) is fixedly connected to the outer wall of the tree equipment (2). A motor (42) is fixedly installed on the inner side of the mounting frame (1). A lifting threaded rod (43) is fixedly installed on the top surface of the output end of the motor (42). The top surface of the lifting threaded rod (43) is threaded through the bottom surface of the lifting block (44) and extends to the top of the lifting block (44). The top surface of the lifting threaded rod (43) is rotatably connected to the inner side of the mounting frame (1) through a bearing seat.

3. The blowout preventer wellhead Christmas tree device according to claim 1, characterized in that: The oil well equipment (2) has a sealing ring (34) slidingly fitted on the outer wall of the oil inlet pipe. A control thread rod (36) is fixedly installed on the top surface of the sealing ring (34). The top surface of the control thread rod (36) extends through the inner top surface of the fixed sleeve (31) to the top of the fixed sleeve (31). A nut (37) is rotatably installed on the top surface of the fixed sleeve (31) through the bearing seat. The inner side of the nut (37) is threadedly connected to the outer wall of the control thread rod (36).

4. The blowout preventer wellhead Christmas tree device according to claim 3, characterized in that: A positioning rod (35) is fixedly provided on the top surface of the sealing ring (34). The top surface of the positioning rod (35) slides through the inner top surface of the sealing ring (34) and extends to the top of the sealing ring (34).

5. The blowout preventer wellhead Christmas tree device according to claim 1, characterized in that: The outer wall of the fixed sleeve (31) is fixedly provided with a fixed frame (310), the outer wall of the fixed frame (310) is slidably connected to the inner side of the control ring (32), and the outer wall of the control ring (32) is threaded through with a bolt (311) extending to the inner side of the fixed frame (310).

6. The blowout preventer wellhead Christmas tree device according to claim 2, characterized in that: Two support plates (45) are fixedly installed on the outer wall of the tree equipment (2). Two support hydraulic rods (41) are fixedly installed on the inner side of the mounting frame (1). The top surfaces of the two support hydraulic rods (41) are fixedly connected to the bottom surfaces of the two support plates (45) respectively. Two limiting rods (47) are vertically fixedly installed on the inner side of the mounting frame (1). Limiting plates (46) are slidably sleeved on the outer walls of the two limiting rods (47). The side of the limiting plate (46) near the tree equipment (2) is fixedly connected to the outer wall of the tree equipment (2).

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