WO2014048067A1 - Hydraulic energy-storage petroleum drilling and repairing machine capable of tripping double joints or three-joint unit - Google Patents

Description

 Hydraulic accumulating oil drilling machine capable of lifting double roots or standing roots

 The invention relates to a hydraulic energy storage oil workover rig or a drilling machine, which can be used for workover, oil test, gas test or drilling workover equipment of petroleum oil and gas wells and water injection wells. Background technique

 The shape and principle of the hydraulic energy storage workover rig is similar to that of a conventional workover rig. It uses the principle of pneumatic energy storage, which not only achieves a large energy saving, but also eliminates the need for conventional derricks, winches and other facilities. However, this type of device that directly pushes the wire rope lifting cylinder with a cylinder is difficult to achieve if the double or three is to be lifted, because the piston rod of the cylinder, if it rises too long, may be unstable under heavy load conditions. Summary of the invention

 The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and to provide a hydraulic accumulating oil drilling machine capable of lifting a double root or a stand.

The invention solves the technical problem by adopting a long-stroke multi-cavity composite cylinder or cylinder group and a long-distance truss type lifting column to solve the problem that the cylinder rod rod is too long to rise and the pressure rod instability may occur and realize the double root or the root. . The specific solution is to fix the bottom end of an upright guide frame (derrick frame) on the workover platform, the top of the vertical guide frame (derrick frame) is equipped with an aerial work platform, and the vertical guide frame (derrick frame) itself has a sloped stairway For the operator to climb the aerial work platform safely, fix the long-stroke composite cylinder or cylinder group at the bottom of the vertical guide frame (derrick), the bottom end of the piston rod of the long-stroke multi-cavity composite cylinder or cylinder group and the truss type lifting column Connected, the truss-type lifting column is lifted with the rise of the long-stroke multi-cavity composite cylinder or the cylinder rod of the cylinder group, and the truss-type lifting column is restrained by the vertical guide frame (derrick), and only one up or down movement is free. Degree, rise and fall inside. The top of the truss lift column is equipped with two day wheel frames and two day wheels. The bottom of the vertical guide frame (derrick) is equipped with two fixed wheels. The wire rope is fixed on the truss type lifting column. The fixed wheel and the sky wheel are directly connected with the big hook. The large hook can be lifted by the lifting eye and the hydraulic clamp. The height of the workover platform should meet the installation requirements of the wellhead blowout preventer, and the workover platform is provided with a vertical root box, a hydraulic turntable and an operation room; the hydraulic source and the high pressure nitrogen storage vehicle are respectively installed on the transport vehicle or the sledge. A liquid storage tank, a well test gas injection blowout system and a mud system are arranged near the workover platform. Upright guide frames (derricks) and truss type lifting columns can be trussed or integral. The ratio of the lifting distance of the truss type lifting column to the lifting distance of the large hook is 1: 3 The invention has the beneficial effects that: by adopting a long-stroke multi-cavity composite cylinder or cylinder group and a long-distance truss type lifting column, the problem of instability of the pressure bar which may occur when the piston rod of the cylinder is too long is overcome, and can also be realized. Lower root or stand. The truss type lifting column is lifted and lowered in the vertical guide frame, and the vertical guide frame can also be used as the derrick. The aerial work platform is arranged at the top of the vertical guide frame, which solves the need to simultaneously raise the double root or the root, and the double root or the vertical root It can be conveniently placed on the beam and placed in the vertical box. DRAWINGS

 BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing the structure of a hydraulic accumulating oil drilling machine capable of lifting a double root or a stand according to the present invention.

 In the picture: 1-day wheel, 2-large hook, 3-air work platform, 4-double root, 5-wire rope, 6-hydraulic turntable, 7-ground box, 8-overlay platform, 9-well test Blowout prevention system, 10-day wheel frame, 11- vertical guide frame (derrick frame), 12-truss type lifting column, 13-long stroke multi-cavity compound cylinder (or cylinder group), 14-operating room, 15-reservoir Cylinder, 16-fixed wheel, 17-hydraulic pliers, 18-high pressure nitrogen storage vehicle, 19-high and low pressure piping system, 20-oil piping system, 21-hydraulic source.

 Figure 2 is a schematic illustration of the construction of a long stroke multi-cavity composite cylinder (or cylinder bank) in accordance with the present invention.

 Figure 3 is a schematic view showing the structure of a vertical guide frame (derrick frame) and a truss type lifting column according to the present invention.

 Figure 4 is a schematic view showing the winding structure of the steel wire rope in two different ratios according to the present invention. detailed description

 The invention is further described below in conjunction with the drawings and embodiments.

As shown in Fig. 1, the bottom end of a vertical guide frame (derrick) 11 is fixed on the workover platform 8, and the top of the work is equipped with an aerial work platform 3, and the vertical guide frame (derrick) 11 itself has a sloped stairway For the operator to climb the aerial work platform 3 safely, the long-stroke multi-cavity compound cylinder (or cylinder group) 13 is fixed at the bottom of the vertical guide frame (derrick) 11, long-stroke multi-cavity composite cylinder (or cylinder group) 13 The piston rod is connected to the bottom end of the truss type lifting column 12. The truss-type lifting column 12 is lifted with the rise of the long-stroke multi-cavity composite cylinder (or cylinder group) 13 piston rod, and the truss-type lifting column 12 is restrained by the vertical guide frame (derrick) 11, only one liter or The freedom of movement of the movement is raised and lowered inside. The top of the truss type lifting column 12 is provided with two day wheel frames 10 and two sky wheels 1. The bottom of the vertical guide frame (derrick) 11 is provided with two fixed wheels 16, and the wire rope 5 is fixed on the truss type lifting column 12, and the fixed wheel 16 and the sky wheel 1 are directly connected with the large hook 2, and the large hook 2 can pass The lifting eye elevator and the hydraulic clamp 17 take off the double root 4; the height of the workover platform 8 should meet the installation requirements of the wellhead blowout prevention device, and the workover platform 8 is provided with a vertical root box 7, a hydraulic turntable 6 and an operation room 13; The hydraulic source 21 and the high pressure nitrogen storage vehicle 18 are respectively installed in the transportation On the car or sledge, a liquid storage tank 15, a well test gas injection blowout system 9 and a mud system should be provided near the workover platform 8 as needed.

 Embodiment 1 : As shown in Figure 2 (a) is a form of long-stroke multi-cavity compound cylinder, which has four working chambers of ABCD. These chambers and pressure ports (P port) have different connections, which can be used in oil pressure. Different grades of thrust are provided under constant conditions. The cylinder group can be composed of different numbers of cylinders through series and parallel connection. As shown in Fig. 2 (b) is a cylinder group consisting of three oil cylinders in parallel. It has three working cavities and passes through the pressure port (P port). ) Connection, also under different conditions of oil pressure, different connection methods, can also provide different grades of thrust.

 Long-stroke multi-cavity composite cylinder (or cylinder group) 13 The driving force for lifting the lifting column 12 is derived from the power liquid supplied from the hydraulic source 21 and the high-pressure oil stored in the liquid storage cylinder 15, and the hydraulic valve group is controlled according to the lifting force. The various working strokes of the long-stroke multi-cavity compound cylinder (or cylinder group) 13 can be realized in various working states.

 As shown in Figure 3, the vertical guide frame (derrick) 11 and the truss lift column 12 can be truss type - as shown in Figure 3 (a), or the overall box type - as shown in Figure 3 (b) . The upright guide frame (derrick) 11 is fixed to the workover platform 8 and serves mainly as a guide frame, while also eliminating the need for a conventional derrick. The truss-type lifting column 12 and the long-stroke multi-cavity compound cylinder (or cylinder group) 13 are fixed inside the vertical guide frame (derrick) 11, and are restrained by this, and can be safely lifted and lowered inside.

 As shown in Fig. 4, by changing the winding mode of the wire rope and the slight adjustment of the structure, the ratio of the lifting distance of the different truss type lifting column 12 and the lifting distance of the large hook 2 can be obtained. As can be seen from the figure, the ratio can be 1 : 3 - as shown in Figure 4 (a), or 1: 4 - as shown in Figure 4 (a).

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 Correction page (Article 91) ISA/CN

Claims

Rights request 1. A hydraulic energy-storage oil drilling and repairing machine that can lift double or vertical roots, including an upright guide frame (11), a truss-type lifting column (12), a long-stroke multi-cavity composite cylinder or cylinder group (13), Large hook (2), hydraulic clamp (17), fixed wheel (16) and overhead wheel (1), Its characteristics are, The bottom end of an upright guide frame (11) with an inclined ladder is fixed on the workover platform (2), and an aerial work platform (3) is installed on the top of the upright guide frame (11). A long-stroke composite oil cylinder (13) is fixed at the bottom of the guide frame (11). The piston rod of the long-stroke multi-cavity composite oil cylinder (13) is connected to the bottom end of the truss-type lifting column (12). The truss-type lifting column (12) The top of the (12) is equipped with two crane wheels (10) and two crane wheels (1), the bottom of the upright guide frame (11) is equipped with two fixed wheels (16), and the steel wire rope is fixed on the truss type The lifting column (12) is directly connected to the big hook (2) through the fixed wheel (16) and the crane wheel (1). The big hook (2) lifts the two roots through the lifting ring elevator and the hydraulic clamp (17); The workover platform (8) is equipped with a stand box (7), a hydraulic turntable (6) and an operating room (14); the hydraulic source (21) and the high-pressure nitrogen storage vehicle (18) are installed on the transport vehicle or sledge respectively. A liquid storage cylinder (15), a well killing gas test blowout prevention system (9) and a mud system are provided near the workover platform (8). 2. The hydraulic energy-storage oil drilling and repairing machine capable of raising and lowering double or vertical roots according to claim 1, characterized in that: the upright guide frame (11) and the truss-type lifting column (12) are of truss type or Overall box shape. 3. The hydraulic energy-storage oil drilling and repairing machine capable of raising and lowering double or vertical roots according to claim 1, characterized in that: the ratio of the lifting distance of the truss-type lifting column (12) to the lifting distance of the large hook (2) Is it 1:3 or 1:4.