Double-station well completion tool production sliding sleeve displacement testing mechanism

Abstract

The utility model discloses a double-station well completion tool production sliding sleeve displacement testing mechanism which comprises a machine frame body, a linear sliding rail, a transmission block, a transmission lead screw, a driving motor, a first winch, a first displacement tool, a second winch, a second displacement tool and a sliding block. The transmission block is installed on the linear sliding rail in a sliding mode, and the two ends of the transmission lead screw are rotationally installed at the bottom of the machine frame body through ball bearings. The test device can perform simulation test on the on-off state of the production sliding sleeve relative to the cylinder body through the double-station displacement tool, improves the use reliability of the assembly of the production sliding sleeve and the cylinder body after well completion installation, has the advantage of convenient movement in a manner of driving the transmission block and the cylinder body to move through the transmission screw rod, and is suitable for popularization and application. And meanwhile, the safety in the moving process is higher.

Description

Technical Field

[0001] The utility model belongs to the technical field of petroleum completion tools, in particular to a double-station completion tool production sleeve displacement testing mechanism. Background Art

[0002] At present, in order to realize the production and testing of different oil layers, the production sleeve needs to be used to provide a liquid flow channel between the oil pipe and the annulus. The production sleeve is opened by repeatedly shifting the displacement tool with gravity hammer. The displacement tool is turned 180°, and an upward traction force is applied to the displacement station to achieve the upward displacement and closure of the production sleeve. However, after the production sleeve and the outer cylinder are assembled, some of them will have the problem of difficulty in displacement of the production sleeve, resulting in a low success rate of opening and closing. It is necessary to test its opening and closing performance by using the displacement tool before the completion of the well. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a mechanism for performing double-station simulation test on the assembly combination of a production sliding sleeve and an outer cylinder by means of a shifting tool before well completion construction.

[0004] In order to solve the above technical problems, the present invention is realized through the following technical solutions: a double-station completion tool production sleeve displacement test mechanism, including a frame body, a linear slide rail, a transmission block, a transmission screw, a drive motor, a first winch, a first displacement tool, a second winch, a second displacement tool and a slider, the linear slide rail is fixedly mounted on the bottom of the frame body, the transmission block is slidably mounted on the linear slide rail, both ends of the transmission screw are rotatably mounted on the bottom of the frame body through ball bearings, the drive motor is fixedly mounted on the right end of the bottom of the frame body through a motor bracket, and the output shaft of the drive motor is connected to the transmission screw The rod is fixedly connected, and the transmission screw is also connected to the transmission block. The first winch and the second winch are both fixedly installed on the top of the frame body. The first shifting tool is installed on the first winch by hanging the first traction rope, and the second shifting tool is installed on the second winch by hanging the second traction rope. The second shifting tool is hung in the opposite direction to the first shifting tool. The frame body is provided with a transverse support rod, and each transverse support rod is respectively slidably installed with two sliders, and the two sliders are hingedly installed with a clamp that matches the cylinder, and the top of the transmission block is provided with a positioning groove that matches the bottom of the cylinder.

[0005] Preferably, a noise reduction rubber pad with a thickness of 3-5 cm is provided at the bottom of the positioning groove of the transmission block.

[0006] Preferably, a stop and limit ring is fixedly sleeved and installed on the transverse support rod.

[0007] Preferably, a touch switch is fixedly mounted on the inner limiting surface of the stop limiting ring, and the touch switch and the drive motor are both connected to the control module through a circuit.

[0008] Compared with the prior art, the utility model has the following advantages: the test device can simulate the opening and closing state of the production sleeve relative to the cylinder through a duplex displacement tool, thereby improving the reliability of the assembly of the production sleeve and the cylinder after completion and installation. The transmission block and the cylinder are driven by a transmission screw, which has the advantage of convenient movement and higher safety during the movement process. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The utility model is further described below in conjunction with the accompanying drawings.

[0010] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0011] The utility model is described in detail below in conjunction with specific implementation methods:

[0012] like Figure 1 The double-station completion tool production sleeve displacement test mechanism shown in the figure includes a frame body 1, a linear slide rail 2, a transmission block 3, a transmission screw rod 4, a drive motor 5, a first winch 6, a first displacement tool 61, a second winch 7, a second displacement tool 71 and a slider 8, wherein the linear slide rail 2 is fixedly mounted on the bottom of the frame body 1, the transmission block 3 is slidably mounted on the linear slide rail 2, both ends of the transmission screw rod 4 are rotatably mounted on the bottom of the frame body 1 through ball bearings, the retaining frame of the ball bearing is fixedly mounted on the frame body 1, both ends of the transmission screw rod 4 are fixedly connected to the rotating body of the ball bearing, the drive motor 5 is fixedly mounted on the right end of the bottom of the frame body 1 through a motor bracket 51, and the drive motor 5 The output shaft is fixedly connected to the transmission screw 4, and the transmission screw 4 is also transmission-connected to the transmission block 3. The first winch 6 and the second winch 7 are both fixedly mounted on the top of the frame body 1. The first shifting tool 61 is suspended and mounted on the first winch 6 by a first traction rope, and the second shifting tool 71 is suspended and mounted on the second winch 7 by a second traction rope 72. The second shifting tool 71 is suspended in the opposite direction to the first shifting tool 61. A transverse support rod 11 is provided on the frame body 1, and each transverse support rod 11 is respectively slidably mounted with two sliders 8. The two sliders 8 are hingedly mounted with a clamp that matches the cylinder 10. A positioning groove that matches the bottom of the cylinder 10 is provided on the top of the transmission block 3.

[0013] In order to avoid a rigid collision between the bottom of the cylinder 10 and the bottom of the positioning groove, which may cause excessive noise, a noise reduction rubber pad 31 with a thickness of 3.5 cm is provided at the bottom of the positioning groove of the transmission block 3. The cylinder 10 is placed on the noise reduction rubber pad 31 at the bottom of the positioning groove to reduce the noise problem in the test.

[0014] A stop and limit ring 12 is fixedly installed on the transverse support rod 11, and a touch switch is fixedly installed on the inner limit surface of the stop and limit ring 12. The touch switch and the drive motor are connected to the control module through a circuit. After the slider 8 located on the outside moves left and right and contacts the touch switch on the stop and limit ring 12 to cause it to act, the touch switch sends an electrical signal to the control module, and the control module controls the drive motor 5 to stop running. The combination of the cylinder 10 and the production sleeve 101 is locked and fixed by the clamp on the slider 8. After the combination of the cylinder 10 and the production sleeve 101 moves to the left and right limit positions to cause the touch switch to act, the cylinder 10 can be in a coaxial position with the first shifting tool 61 and the second shifting tool 71 in a stationary state, so as to avoid the problem of jamming between the first shifting tool 61, the second shifting tool 71 and the cylinder 10 and the production sleeve 101 due to the inclination of the traction force of the first traction rope and the second traction rope 72.

[0015] The assembly of the cylinder 10 and the production sleeve 101 is placed in the top positioning groove of the transmission block 3, and the cylinder 10 is locked and fixed by the clamp on the slider 8. The drive motor 5 is started to drive the transmission block 3 to move to the left through the transmission screw 4 until the cylinder 10 is directly below the first shift tool 61. The tester slides and installs the first shift tool 61 in the cylinder 10 by manual guidance. The first winch 6 rotates rapidly to make the first shift tool 61 move downward in a manner close to free fall to hammer the production sleeve 101 in the cylinder 10, so that the production sleeve 101 moves downward. The tester observes the relative positions of the holes of the cylinder 10 and the production sleeve 101, and records the displacement of the production sleeve 101 caused by a single hammering of the first shift tool 61 to move it downward. After the production slide 101 moves downward to the extreme position and is in a fully open state relative to the cylinder 10, the drive motor 5 is started to drive the transmission block 3 to move rightward through the transmission screw 4 until the cylinder 10 is directly below the second shifting tool 62. The tester slides and installs the second shifting tool 62 in the cylinder 10 by manual guidance. After the second shifting tool 62 is fixed to the production slide 101, the second winch 7 reels in the second traction rope 72 to exert an upward traction force on the second shifting tool 62, so as to shift the production slide 101 upward until it moves to the extreme position and is in a fully closed state relative to the cylinder 10.

Claims

1. A double-station completion tool production sleeve displacement test mechanism, characterized in that: The machine comprises a frame body (1), a linear slide rail (2), a transmission block (3), a transmission screw (4), a drive motor (5), a first winch (6), a first shifting tool (61), a second winch (7), a second shifting tool (71) and a slider (8), wherein the linear slide rail (2) is fixedly mounted on the bottom of the frame body (1), the transmission block (3) is slidably mounted on the linear slide rail (2), both ends of the transmission screw (4) are rotatably mounted on the bottom of the frame body (1) via ball bearings, the drive motor (5) is fixedly mounted on the right end of the bottom of the frame body (1) via a motor bracket (51), the output shaft of the drive motor (5) is fixedly connected to the transmission screw (4), and the transmission screw (4) is also connected to the transmission block (3) for transmission. The first hoist (6) and the second hoist (7) are both fixedly mounted on the top of the frame body (1); the first displacement tool (61) is mounted on the first hoist (6) by hanging through a first traction rope; the second displacement tool (71) is mounted on the second hoist (7) by hanging through a second traction rope (72); the second displacement tool (71) and the first displacement tool (61) are hung in the opposite direction; the frame body (1) is provided with a transverse support rod (11); each transverse support rod (11) is respectively slidably mounted with two sliders (8); the two sliders (8) are hingedly mounted with a clamp that matches the cylinder (10); and the top of the transmission block (3) is provided with a positioning groove that matches the bottom of the cylinder (10).

2. The double-station completion tool production sleeve displacement testing mechanism according to claim 1, characterized in that: A noise reduction rubber pad (31) with a thickness of 3-5 cm is arranged at the bottom of the positioning groove of the transmission block (3).

3. The double-station completion tool production sleeve displacement testing mechanism according to claim 1, characterized in that: A stop and limit ring (12) is fixedly sleeved and installed on the transverse support rod (11).

4. The double-station completion tool production sleeve displacement testing mechanism according to claim 3 is characterized in that: A touch switch is fixedly mounted on the inner limit surface of the stop limit ring (12), and the touch switch and the drive motor are both connected to the control module via a circuit.

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