A simple electric pump disassembly and assembly device

Abstract

The present invention relates to the technical field of oil and natural gas extraction, and specifically to a simple electric pump disassembly and assembly device, which is used on an offshore well repair operation ship and includes a support frame, a fixed plate, a guardrail, and a disassembly and assembly cylinder; the support frame is connected to the ship deck, the fixed plate is arranged on the support frame, the disassembly and assembly cylinder is arranged on the fixed plate, and the guardrail is arranged on the fixed plate. The simple electric pump disassembly and assembly device of the present invention solves the problem of insufficient space and capacity for disassembling and assembling the electric pump unit at the wellhead due to the conditional limitations of the hydraulic lifting device, and makes full use of the height difference between the outer side of the ship's side and the sea level. Within the operating range of the support ship's crane, the electric pump disassembly and assembly operation is carried out in advance in the non-wellhead operation area. The operation is simple, reduces the operation time, saves operation costs, and achieves the purpose of reducing costs and increasing efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of oil and natural gas exploitation, and in particular to a simple electric pump disassembly and assembly device. Background Art

[0002] Offshore well repair operations often involve pump inspections, which primarily involve raising and lowering production tubing and disassembling electric pump units. Offshore production platforms equipped with modular drilling rigs or drillships for well repair are equipped with traveling blocks, large hooks, and multiple pneumatic winches. Furthermore, the wellhead turntable, riser, bellmouth, and blowout preventer assembly are relatively large, which can normally accommodate disassembling and assembling the electric pump unit at the wellhead. However, when wellhead platforms without well repair equipment use hydraulic lifting devices and support vessels for well repair operations, such as the offshore oilfield downhole electric pump operating condition test tubing and testing device disclosed in Chinese patent CN210829231U, there is insufficient space and capacity to disassemble and assemble the electric pump unit at the wellhead due to the limitations of the hydraulic lifting device, making the operation very inconvenient. Summary of the Invention

[0003] In order to overcome the defects of the prior art, the present invention provides a simple electric pump disassembly and assembly device, which solves the problem of insufficient space and capacity for disassembling and assembling the electric pump unit at the wellhead due to the conditional limitations of the hydraulic lifting device. It fully utilizes the height difference between the outer side of the support ship's side and the sea level, and performs disassembly and assembly of the electric pump in advance in the non-wellhead operation area within the operating range of the support ship's crane. The operation is simple, reduces operation time, saves operation costs, and achieves the purpose of reducing costs and increasing efficiency.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] A simple electric pump disassembly and assembly device is used on an offshore well repair operation ship, comprising a support frame, a fixing plate, a guardrail and a disassembly and assembly cylinder; the support frame is connected to the ship deck, the fixing plate is arranged on the support frame, the disassembly and assembly cylinder is arranged on the fixing plate, and the guardrail is arranged on the fixing plate.

[0006] Furthermore, the support frame includes a support column, a first channel steel and a second channel steel; the bottom of the support column is connected to the ship deck, one end of the first channel steel is connected to the connection between the support column and the ship deck, the other end of the first channel steel is connected to one end of the second channel steel, the other end of the second channel steel is connected to the top of the support column, and the fixing plate is connected to the first channel steel. Each part is connected by welding, and the connection is also subjected to corresponding anti-corrosion treatment, so the connection is more stable, and a right triangle is formed between the support column, the first channel steel and the second channel steel, which greatly improves the stability of the overall structure.

[0007] Furthermore, a third channel steel is provided below the fixing plate, and the third channel steel is connected to the side of the ship deck to enhance the supporting effect.

[0008] Furthermore, the fixing plate is provided with a mounting hole adapted to the size of the disassembly cylinder, and the disassembly cylinder is mounted on the fixing plate via a safety slip, which makes the connection more stable and also facilitates disassembly and assembly.

[0009] Furthermore, the fixing plate is a steel plate with a thickness of 8.0 mm, a width of 0.8 m, and a length of 1.2 m, which is strong and durable.

[0010] Furthermore, the disassembly and assembly tube is a steel pipe with an outer diameter of 9-5 / 8″, a pound grade of 47ppf, a material of 13CrL80, a model of buckle type BGT2B×P, a length of 22m, and a diameter of the mounting hole of 226mm. It has good corrosion resistance and a long service life.

[0011] Furthermore, the support column is a solid iron column with a diameter of 0.5m and a height of 1m, which is strong and durable.

[0012] Furthermore, the model of the first channel steel, the second channel steel and the third channel steel are all channel steel 18#, with a waist height of 18 cm, a leg width of 6.8 cm, and a waist thickness of 0.8 cm, and a good supporting effect.

[0013] Furthermore, the guardrail is composed of circular iron columns with a diameter of 4 cm and a diameter of 3 mm. The installation height of the guardrail is 1.5 m, which effectively prevents workers from falling.

[0014] Furthermore, 3 / 5 of the overall length of the first and third channel steels are built into the inner deck of the ship's side, and 2 / 5 of the overall length is placed outside the ship's side. The length of the first and third channel steels is 2m, and the stability is good.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] By utilizing the height difference between the outer side of the support vessel and the sea level and the support vessel's own crane, the electric pump unit can be disassembled and assembled in the non-wellhead operation area. This not only solves the problem of difficulty in disassembling and assembling the electric pumps encountered by the hydraulic lifting device and the support vessel during well repair operations, but also allows the dual submersible oil electric pumps to be assembled in advance using the disassembly and assembly barrel, thus reducing operation time and costs, and achieving the goal of reducing costs and increasing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the drawings without creative work.

[0018] Figure 1 This is a structural schematic diagram of a simple electric pump disassembly and assembly device of the present invention;

[0019] Figure 2 This is a front view of a simple electric pump disassembly and assembly device of the present invention;

[0020] Figure 3 This is a right side view of a simple electric pump disassembly and assembly device of the present invention;

[0021] Figure 4 The figure is a top view of a simple electric pump disassembly and assembly device of the present invention.

[0022] Among them: 1. Fixed plate; 2. Guardrail; 3. Disassembly and assembly tube; 4. Support column; 5. First channel steel; 6. Second channel steel; 7. Third channel steel. DETAILED DESCRIPTION

[0023] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] The embodiments of the present invention include:

[0025] Example 1:

[0026] like Figure 1-4 As shown, a simple electric pump disassembly and assembly device is used on an offshore well repair operation ship, including a support frame, a fixed plate 1, a guardrail 2 and a disassembly and assembly cylinder 3; the support frame is connected to the ship deck, the fixed plate 1 is set on the support frame, the disassembly and assembly cylinder 3 is set on the fixed plate 1, and the guardrail 2 is set on the fixed plate 1.

[0027] like Figure 1-4As shown, the support frame includes a support column 4, a first channel steel 5 and a second channel steel 6; the bottom of the support column 4 is connected to the ship deck, one end of the first channel steel 5 is connected to the connection between the support column 4 and the ship deck, the other end of the first channel steel 5 is connected to one end of the second channel steel 6, the other end of the second channel steel 6 is connected to the top of the support column 4, and the fixing plate 1 is connected to the first channel steel 5. The connection of each part is connected by welding, and the connection is also subjected to corresponding anti-corrosion treatment, which makes the connection more stable, and a right triangle is formed between the support column 4, the first channel steel 5 and the second channel steel 6, which greatly improves the stability of the overall structure.

[0028] like Figure 1 and Figure 4 As shown, a third channel steel 7 is provided below the fixing plate 1 and is connected to the side of the ship deck to enhance the supporting effect.

[0029] In this embodiment, a mounting hole that is adapted to the size of the disassembly cylinder 3 is provided on the fixed plate 1. The disassembly cylinder 3 is mounted on the fixed plate 1 through a safety slip, which makes the connection more stable and convenient for disassembly and assembly.

[0030] In this embodiment, the fixing plate 1 is a steel plate with a thickness of 8.0 mm, a width of 0.8 m, and a length of 1.2 m, and is strong and durable.

[0031] In this embodiment, the disassembly and assembly tube 3 is a steel tube with an outer diameter of 9-5 / 8″, a pound grade of 47ppf, a material of 13CrL80, a model of buckle type BGT2B×P, a length of 22m, and a mounting hole diameter of 226mm. It has good corrosion resistance and a long service life.

[0032] In this embodiment, the support column 4 is a solid iron column with a diameter of 0.5m and a height of 1m, and is strong and durable.

[0033] In this embodiment, the first channel steel 5, the second channel steel 6 and the third channel steel 7 are all channel steel #18, with a waist height of 18 cm, a leg width of 6.8 cm, and a waist thickness of 0.8 cm, and have a good supporting effect.

[0034] In this embodiment, the guardrail 2 is composed of a circular iron column with a diameter of 4 cm and a diameter of 3 mm. The installation height of the guardrail 2 is 1.5 m, which effectively prevents workers from falling.

[0035] In this embodiment, 3 / 5 of the overall length of the first channel steel 5 and the third channel steel 7 are built into the inner deck of the ship's side, and 2 / 5 of the overall length are placed outside the ship's side. The length of the first channel steel 5 and the third channel steel 7 is 2m, and the stability is good.

[0036] The specific on-site application includes the following steps:

[0037] 1. Install the simple electric pump disassembly and assembly device through the above technical solution, check whether the welding points are firm, and take anti-corrosion measures on the welding points;

[0038] 2. Use the support vessel crane to first lift the connected pump and motor into the disassembly barrel 3, use the motor safety elevator to place it on the top of the disassembly barrel 3, and remove the crane hook;

[0039] 3. Use the support vessel crane to lift the protector above the motor, connect the protector and the motor, remove the safety elevator on the motor, and fix the safety elevator on the protector along the bottom of the disassembly cylinder 3 so that it is once again located at the end of the disassembly cylinder 3;

[0040] 4. Perform the same operation and connect the separator and electric pump so that they are located at the 3rd end of the disassembly and assembly cylinder for use.

[0041] In the above-mentioned simple electric pump disassembly and assembly device, all parts are connected by welding, and the overall structural strength must meet the requirements of on-site operations.

[0042] In the above-mentioned simple electric pump disassembly and assembly device, the disassembly and assembly tube 3 ensures that the minimum inner diameter is larger than the maximum outer diameter of the submersible electric pump.

[0043] In the above-mentioned simple electric pump disassembly and assembly double-drum device, regarding the production string of the double submersible electric pumps, two disassembly and assembly drums 3 can be used at the same time to assemble the double submersible electric pumps in advance, thereby reducing operation time and lowering operation costs.

[0044] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A simple electric pump disassembly and assembly device, used on an offshore well repair ship, characterized in that: It includes a support frame, a fixing plate, a guardrail and a disassembly and assembly cylinder; the support frame is connected to the ship deck, the fixing plate is arranged on the support frame, the disassembly and assembly cylinder is arranged on the fixing plate, and the guardrail is arranged on the fixing plate; The support frame includes a support column, a first channel steel and a second channel steel; the bottom of the support column is connected to the ship deck, one end of the first channel steel is connected to the connection between the support column and the ship deck, the other end of the first channel steel is connected to one end of the second channel steel, the other end of the second channel steel is connected to the top of the support column, the fixing plate is connected to the first channel steel, and a right triangle is formed between the support column, the first channel steel and the second channel steel.

2. The simple electric pump disassembly and assembly device according to claim 1, characterized in that: A third channel steel is provided below the fixing plate and is connected to the side of the ship deck.

3. The simple electric pump disassembly and assembly device according to claim 1, characterized in that: The fixing plate is provided with a mounting hole adapted to the size of the disassembling cylinder, and the disassembling cylinder is mounted on the fixing plate via safety slips.

4. The simple electric pump disassembly and assembly device according to claim 3, characterized in that: The fixing plate is a steel plate with a thickness of 8.0 mm, a width of 0.8 m and a length of 1.2 m.

5. The simple electric pump disassembly and assembly device according to claim 4, characterized in that: The disassembly and assembly tube is a steel tube with an outer diameter of 9-5 / 8″, a pound grade of 47ppf, a material of 13CrL80, a model of buckle type BGT2 B×P, a length of 22m, and a diameter of the installation hole of 226mm.

6. The simple electric pump disassembly and assembly device according to claim 1, characterized in that: The support column is a solid iron column with a diameter of 0.5m and a height of 1m.

7. The simple electric pump disassembly and assembly device according to claim 2, characterized in that: The first channel steel, the second channel steel and the third channel steel are all of channel steel #18, with a waist height of 18 cm, a leg width of 6.8 cm and a waist thickness of 0.8 cm.

8. The simple electric pump disassembly and assembly device according to claim 1, characterized in that: The guardrail is composed of circular iron columns with a diameter of 4 cm and a diameter of 3 mm. The installation height of the guardrail is 1.5 m.

9. The simple electric pump disassembly and assembly device according to claim 2, characterized in that: 3 / 5 of the overall length of the first and third channel steels are built into the inner deck of the ship's side, and 2 / 5 of the overall length is placed outside the ship's side. The length of the first and third channel steels is 2m.

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