Oil production wellhead under-pressure operation device

Abstract

The utility model relates to the technical field of oil well under-pressure operation devices, in particular to an oil extraction wellhead under-pressure operation device which comprises a rectangular shell, connecting plates are fixedly connected to the two sides of the rectangular shell, a rectangular block is fixedly connected to one end of each connecting plate, and a rectangular cavity is formed in each rectangular block. The bottom of the rectangular block is fixedly connected with a connecting shell, the bottom of the connecting shell is fixedly connected with a supporting plate, a fixing mechanism is arranged in the rectangular cavity, a lifting plate is arranged in the rectangular shell, and an under-pressure assembly is placed on the lifting plate. When the device is used, the first threaded rod and the conical head can be drilled into the ground through the fixing mechanism until the first rectangular plate drives the limiting plate to move to the lowermost part of the limiting groove, the first threaded rod rotates reversely, the hydraulic cylinder is shortened, and the first threaded rod and the conical head are driven to move upwards during dismantling, the time needed by fixing is short, and fixing is convenient; and during disassembly, the device is also relatively convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil well with pressure operation device technical field especially relates to a kind of oil extraction wellhead with pressure operation device. BACKGROUND

[0002] With pressure operation is to keep a certain pressure in wellbore, without well washing, without pressure, to carry out pipe column, implement stimulation measures of advanced downhole operation technology.In industrial production process, it can also be through to work environment exert certain pressure, so that work environment operates under high pressure.

[0003] With pressure component is needed to carry out with pressure operation to oil extraction wellhead, with pressure component needs to be fixed to the wellhead above in advance, the existing with pressure component often uses multiple fixed bolts to be fixed, the time needed for fixing is longer, it is more inconvenient, when dismounting, it is more inconvenient to take out fixed bolt one by one, therefore, a kind of oil extraction wellhead with pressure operation device is presented. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcoming that the existing with pressure component often uses multiple fixed bolts to be fixed, the time needed for fixing is longer, it is more inconvenient, when dismounting, it is more inconvenient to take out fixed bolt one by one, and a kind of oil extraction wellhead with pressure operation device is presented.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] An oil extraction wellhead with pressure operation device, including rectangle shell, both sides of the rectangle shell are fixedly connected with connecting plate, one end of the connecting plate is fixedly connected with rectangle block, rectangle cavity is set up in the rectangle block, the bottom of the rectangle block is fixedly connected with connecting shell body, the bottom of the connecting shell body is fixedly connected with support plate, fixed mechanism is provided in the rectangle cavity, lifting plate is provided in the rectangle shell, with pressure component is placed on the lifting plate, the fixed mechanism includes hydraulic cylinder, first rectangle plate, first drive motor, rotating rod, first threaded rod, taper head, one end of the hydraulic cylinder is fixedly connected with first rectangle plate, the first drive motor is installed at the bottom of first rectangle plate, the output end of the first drive motor is connected with rotating rod, one end of the rotating rod is fixedly connected with first threaded rod, one end of the first threaded rod is fixedly connected with taper head, the inner wall of the connecting shell body is provided with limit slot, both sides of the first rectangle plate are fixedly connected with limit plate, the limit plate is slidably connected with limit slot, the top of the rectangle block is fixedly connected with first shell body, the hydraulic cylinder is installed at the inner top of first shell body.

[0007] In order to better achieve the above object, the utility model adopts further technical scheme: the both sides of rectangular shell are fixedly connected with second casing, the top of one side second casing is installed with second drive motor, the output of second drive motor is connected with second screw rod, second screw rod is connected with second rectangular plate, one side of second rectangular plate is fixedly connected with lifting plate, the second casing far from second drive motor is fixedly connected with slide rod, the slide rod is slidably connected with third rectangular plate, one side of third rectangular plate is fixedly connected with lifting plate.

[0008] In order to better achieve the above object, the utility model adopts further technical scheme: the utility model discloses a rectangular groove is set up on lifting plate, a third drive motor is installed in rectangular groove, the output of third drive motor is connected with bidirectional screw rod, bidirectional screw rod is connected with clamping plate, the both sides of clamping plate are pasted with belt pressure assembly, one side of clamping plate is fixedly connected with baffle.

[0009] The utility model discloses a beneficial effect is:

[0010] 1, when using through fixed mechanism, make first screw rod and cone head drill into the ground, until first rectangular plate drives limit plate to move to the lowermost of limit groove, when dismantling, first screw rod carries out reverse rotation, and hydraulic cylinder shortens, drives first screw rod and cone head to move upwards, until completely removes from the land, and is in the connection casing, need not use multiple fixed bolts and fix, and the time required for fixing is shorter, is more convenient, when dismantling, is also more convenient.

[0011] 2, when using through second drive motor drive second screw rod rotation, second screw rod drives second rectangular plate to descend, and second rectangular plate drives lifting plate to descend, thereby drives belt pressure assembly to enter into rectangular shell, after operation is completed, lifting plate rises, and the belt pressure assembly is taken out, and is maintained.

[0012] 3, when using through third drive motor drive bidirectional screw rod rotation, bidirectional screw rod drives clamping plate to be close to each other, and is clamped, and baffle is limited to belt pressure assembly, avoids because vibration and causes the position of driven assembly to shift. ACCURACY OF DRAWINGS

[0013] Fig. 1 It is the whole three-dimensional structure schematic diagram of the utility model discloses a kind of oil extraction wellhead pressure operation device;

[0014] Fig. 2 It is the fixed mechanism three-dimensional structure schematic diagram of the utility model discloses a kind of oil extraction wellhead pressure operation device;

[0015] Fig. 3 It is the clamping plate three-dimensional structure schematic diagram of the utility model discloses a kind of oil extraction wellhead pressure operation device.

[0016] In the figure: 1, rectangular shell; 2, connecting plate; 3, rectangular block; 4, connecting shell; 5, support plate; 6, lifting plate; 7, hydraulic cylinder; 8, first rectangular plate; 9, first drive motor; 10, first threaded rod; 11, cone head; 12, limiting groove; 13, first shell; 14, second shell; 15, second drive motor; 16, second threaded rod; 17, second rectangular plate; 18, sliding rod; 19, bidirectional screw rod; 20, clamping plate; 21, baffle; 22, pressure belt assembly. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model.

[0018] Referring to Figs. 1-3 As shown in the figure, a kind of oil well mouth pressure operation device, including rectangular shell 1, the both sides of rectangular shell 1 are fixedly connected with connecting plate 2, one end of connecting plate 2 is fixedly connected with rectangular block 3, rectangular cavity is set up in rectangular block 3, the bottom of rectangular block 3 is fixedly connected with connecting shell 4, the bottom of connecting shell 4 is fixedly connected with support plate 5, fixed mechanism is provided in rectangular cavity, lifting plate 6 is provided in rectangular shell 1, lifting plate 6 is placed with pressure belt assembly 22, rectangular shell 1 is moved to wellhead directly above, support plate 5 is supported on ground, rectangular hole is set up in the middle of support plate 5, so that first threaded rod 10 and cone can be inserted into land, fixed mechanism includes hydraulic cylinder 7, first rectangular plate 8, first drive motor 9, rotating rod, first threaded rod 10, cone head 11, one end of hydraulic cylinder 7 is fixedly connected with first rectangular plate 8, first drive motor 9 is installed at the bottom of first rectangular plate 8, the output end of first drive motor 9 is connected with rotating rod, one end of rotating rod is fixedly connected with first threaded rod 10, one end of first threaded rod 10 is fixedly connected with cone head 11, limiting groove 12 is set up in the inner wall of connecting shell 4, limiting plate is fixedly connected on the both sides of first rectangular plate 8, limiting plate is slidably connected with limiting groove 12, the top of rectangular block 3 is fixedly connected with first shell 13, hydraulic cylinder 7 is installed in the inner top of first shell 13.

[0019] The first drive motor 9 is powered by an external device and controlled to be turned on and off, the hydraulic cylinder 7 is elongated, the first rectangular plate 8 is lowered, the conical head 11 contacts the ground, then the first drive motor 9 drives the rotating rod to rotate, the rotating rod drives the first threaded rod 10 to rotate, the first threaded rod 10 drives the conical head 11 to rotate, the hydraulic cylinder 7 continues to elongate, the first threaded rod 10 and the conical head 11 drill into the ground until the first rectangular plate 8 drives the limiting plate to move to the lowermost part of the limiting groove 12; when disassembling, the first threaded rod 10 is reversely rotated, the hydraulic cylinder 7 is shortened, the first threaded rod 10 and the conical head 11 are moved upwards until they are completely removed from the land and are retracted into the connecting shell 4. The second shell 14 is fixedly connected to the two sides of the rectangular shell 1, the second drive motor 15 is installed at the top of one side of the second shell 14, the output end of the second drive motor 15 is connected with the second threaded rod 16, the second threaded rod 16 is threadedly connected with the second rectangular plate 17, the second rectangular plate 17 is fixedly connected with one side of the lifting plate 6. The second drive motor 15 is powered by an external device and controlled to be turned on and off, the pressure-bearing assembly 22 is placed on the lifting plate 6, the second drive motor 15 drives the second threaded rod 16 to rotate, the second threaded rod 16 drives the second rectangular plate 17 to descend, the second rectangular plate 17 drives the lifting plate 6 to descend, thereby driving the pressure-bearing assembly 22 to enter the rectangular shell 1, after the work is completed, the lifting plate 6 rises, the pressure-bearing assembly 22 is conveniently taken out for maintenance, the second shell 14 away from the second drive motor 15 is fixedly connected with the sliding rod 18, the sliding rod 18 is slidingly connected with the third rectangular plate, the third rectangular plate is fixedly connected with one side of the lifting plate 6, the sliding rod 18 and the third rectangular plate keep balance when the lifting plate 6 rises and falls, and stability during rising and falling is ensured.

[0020] The output end of the third drive motor is connected with the bidirectional screw rod 19, the bidirectional screw rod 19 is threadedly connected with the clamping plate 20, the clamping plate 20 is attached to the two sides of the pressure-bearing assembly 22, one side of the clamping plate 20 is fixedly connected with the baffle 21, the third drive motor is powered by an external device and controlled to be turned on and off, after the pressure-bearing assembly 22 is placed on the lifting plate 6, the third drive motor drives the bidirectional screw rod 19 to rotate, the bidirectional screw rod 19 drives the clamping plate 20 to approach each other, the clamping plate 20 is clamped, the baffle 21 limits the pressure-bearing assembly 22, avoids the position of the pressure-bearing assembly from being deviated due to vibration, and the specific type and specification of the first drive motor 9, the second drive motor 15 and the third drive motor are determined according to the actual specification of the device, and the specific selection calculation method adopts the existing technology in the art, and thus is not described herein.

[0021] The utility model discloses when using, the rectangle shell 1 is removed to the well mouth right above, and the support plate 5 is supported on the ground, and the hydraulic cylinder 7 is elongated, and the first rectangle plate 8 is lowered, makes the taper head 11 contact to the ground, subsequently the first drive motor 9 drives the rotation of the rotating rod, and the rotating rod drives the rotation of the first threaded rod 10, and the first threaded rod 10 drives the rotation of the taper head 11, and the hydraulic cylinder 7 continues to elongate, makes the first threaded rod 10 and the taper head 11 drill into the ground, until the first rectangle plate 8 drives the limit board to move to the lowermost of limit groove 12, when dismantling, the first threaded rod 10 carries out reverse rotation, and the hydraulic cylinder 7 is shortened, and drives the first threaded rod 10 and the taper head 11 to move upwards, until completely from the land removal, and is in the connection shell 4, need not use multiple fixed bolts to fix, and the time needed for fixing is shorter, is more convenient, when dismantling, is also more convenient.

[0022] The above is only the preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art in the technical range disclosed by the utility model, according to the technical scheme and the utility model concept of the utility model, carries out equivalent replacement or change, all should be covered in the protection scope of the utility model.

Claims

1. A device for workover of oil wells with pressure, comprising a rectangular casing (1), characterized in that, The both sides of the rectangular shell (1) are fixedly connected with connecting plates (2), one end of the connecting plate (2) is fixedly connected with a rectangular block (3), a rectangular cavity is arranged in the rectangular block (3), the bottom of the rectangular block (3) is fixedly connected with a connecting shell (4), the bottom of the connecting shell (4) is fixedly connected with a supporting plate (5), a fixing mechanism is arranged in the rectangular cavity, a lifting plate (6) is arranged in the rectangular shell (1), a belt pressing assembly (22) is placed on the lifting plate (6), the fixing mechanism comprises a hydraulic cylinder (7), a first rectangular plate (8), a first driving motor (9), a rotating rod, a first threaded rod (10) and a taper head (11), one end of the hydraulic cylinder (7) is fixedly connected with the first rectangular plate (8), the first driving motor (9) is installed at the bottom of the first rectangular plate (8), the output end of the first driving motor (9) is connected with the rotating rod, one end of the rotating rod is fixedly connected with the first threaded rod (10), one end of the first threaded rod (10) is fixedly connected with the taper head (11), the inner wall of the connecting shell (4) is provided with a limiting groove (12), the both sides of the first rectangular plate (8) are fixedly connected with limiting plates, the limiting plates are slidably connected with the limiting groove (12), the top of the rectangular block (3) is fixedly connected with a first shell (13), and the hydraulic cylinder (7) is installed at the inner top of the first shell (13).

2. The device according to claim 1, characterized in that, The both sides of the rectangular shell (1) are fixedly connected with second shells (14), the top of the second shell (14) on one side is provided with a second driving motor (15), the output end of the second driving motor (15) is connected with a second threaded rod (16), the second threaded rod (16) is threadedly connected with a second rectangular plate (17), the second rectangular plate (17) is fixedly connected with one side of the lifting plate (6), the second shell (14) away from the second driving motor (15) is fixedly connected with a sliding rod (18), the sliding rod (18) is slidably connected with a third rectangular plate, and the third rectangular plate is fixedly connected with one side of the lifting plate (6).

3. The device according to claim 1, characterized in that, A rectangular groove is arranged on the lifting plate (6), a third driving motor is installed in the rectangular groove, the output end of the third driving motor is connected with a bidirectional screw rod (19), the bidirectional screw rod (19) is threadedly connected with a clamping plate (20), the clamping plate (20) is attached to the both sides of the belt pressing assembly (22), and one side of the clamping plate (20) is fixedly connected with a baffle (21).

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