Half-way well cementation casing pipe pressure applying device

Abstract

The utility model discloses a half-way well cementation casing pipe pressure applying device, and relates to the technical field of wells. A half-way well cementation casing pipe pressure applying device comprises the ground, a half-way well cementation is drilled on the ground, a casing pipe is installed in the half-way well cementation in a lowering mode, a pipeline fixing structure is located on the ground and comprises a pressure applying supporting frame, a hydraulic lifting rod, an adjusting shrinkage frame and an electric push rod, and the pressure applying supporting frame is installed on the ground; the adjusting contraction frame is slidably connected to the interior of the pressure applying supporting frame, the hydraulic lifting rod is fixedly installed at the top of the pressure applying supporting frame, and under the cooperation of the fixing frame, the two-way screw rod, the two fixing arc plates, the adjusting contraction frame and the pressure applying supporting frame, the two-way screw rod can drive the two fixing arc plates to move oppositely; and therefore, fixing grooves in the two fixing arc plates and positioning rings on the grouting pipe are embedded, the grouting pipe can be rapidly installed and fixed through the two fixing arc plates, and the convenience of fixing and installing the grouting pipe is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wells, in particular to a half-way cementing casing pressure applying device. Background Art

[0002] In the mid-stroke cementing operation, the casing pressure device is a key equipment to ensure that the casing fits tightly against the well wall and improve the cementing quality. In the mid-stroke cementing casing pressure application, pressure application refers to the use of specific equipment and processes to pump cement slurry or other cementing materials into the annular space between the casing and the well wall to fully fill and solidify it, thereby forming a solid barrier to isolate the oil, gas and water layers and prevent problems such as wellbore collapse and well leakage.

[0003] During use, traditional casing pressure devices often rely on manual operation to fix the grouting pipe, and bolts are often used to tighten the grouting pipe, which makes the operation and installation of operators cumbersome, resulting in a slow fixing speed. Therefore, we propose a semi-cementing casing pressure device. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a half-way cementing casing pressure device, which can solve the problem that the fixing of the grouting pipe often relies on manual operation and bolts are often used to tighten the grouting pipe, which makes the operation and installation of the operator more cumbersome, resulting in a slow fixing speed.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a half-way cementing casing pressure device, comprising:

[0006] On the ground, a half-well is drilled and cemented, and a casing is lowered and installed in the half-well;

[0007] A pipeline fixing structure, the pipeline fixing structure is located on the ground;

[0008] The pipeline fixing structure includes a pressure support frame, a hydraulic lifting rod, an adjusting and shrinking frame and an electric push rod. The pressure support frame is installed on the ground, the adjusting and shrinking frame is slidably connected to the inside of the pressure support frame, the hydraulic lifting rod is fixedly installed on the top of the pressure support frame, the bottom end of the hydraulic lifting rod extends to the inside of the pressure support frame and is fixedly connected to the adjusting and shrinking frame, and the electric push rod is fixedly installed inside the adjusting and shrinking frame.

[0009] Preferably, the pipeline fixing structure also includes a fixing frame, a bidirectional screw, two fixed arc plates and a driving motor. The fixing frame is fixedly connected to the side of the adjusting and retracting frame away from the pressure support frame, the telescopic end of the electric push rod is fixedly connected to the fixing frame, the bidirectional screw is rotatably connected to the inside of the fixing frame, the driving motor is fixedly connected to one side of the fixing frame, the output end of the driving motor rotates through one side of the fixing frame and is fixedly connected to the bidirectional screw, and the two fixed arc plates are both threadedly sleeved on the outer surface of the bidirectional screw and slidably connected to the inside of the fixing frame.

[0010] Preferably, the opposite surfaces of the two fixed arc plates are provided with fixing grooves, positioning rings are installed inside the two fixing grooves, and a grouting pipe is fixedly connected inside the positioning ring.

[0011] Preferably, two positioning slide bars are fixedly connected inside the pressure support frame, and the adjustment and contraction frame is slidably connected to the two positioning slide bars.

[0012] Preferably, a control panel is fixedly mounted on one side of the pressure support frame.

[0013] Preferably, a cement slurry storage tank is fixedly installed on the top of the ground, and an output end at the bottom of the cement slurry storage tank is fixedly connected to a connecting hose, and one end of the connecting hose away from the cement slurry storage tank is fixedly connected to the grouting pipe.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) The half-way cementing casing pressure device, through the cooperation of a fixing frame, a bidirectional screw, two fixed arc plates, an adjustable shrinkage frame and a pressure support frame, enables the bidirectional screw to drive the two fixed arc plates to move in opposite directions, thereby engaging the fixing grooves on the two fixed arc plates with the positioning rings on the grouting pipe, so that the two fixed arc plates can quickly install and fix the grouting pipe, further improving the convenience of the grouting pipe during fixed installation.

[0016] (2) The half-stroke cementing casing pressure device, by setting up an adjustable retractable frame and an electric push rod, enables the electric push rod to adjust the length according to the position of the grouting pipe, so that the position of the fixing frame can be adjusted according to different diameters and different sites, thereby increasing the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the pressure support frame of the utility model;

[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of the fixing frame of the utility model.

[0021] Figure numerals: 1. Ground; 2. Casing; 3. Cement slurry storage tank; 4. Connecting hose; 5. Hydraulic lifting rod; 6. Pressure support frame; 7. Control panel; 8. Adjustment and retraction frame; 9. Positioning slide rod; 10. Electric push rod; 11. Fixed frame; 12. Bidirectional screw; 13. Fixed arc plate; 14. Grouting pipe; 15. Driving motor; 16. Fixed groove; 17. Positioning ring. DETAILED DESCRIPTION

[0022] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0023] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] In the description of the present utility model, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0025] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0026] See also Figure 1-3 The utility model provides a technical solution: a half-way cementing casing pressure device, comprising:

[0027] The ground 1 has a semi-cemented well drilled on it, and a casing 2 is lowered and installed in the semi-cemented well;

[0028] A pipeline fixing structure, the pipeline fixing structure is located on the ground 1;

[0029] The pipeline fixing structure includes a pressure support frame 6, a hydraulic lifting rod 5, an adjusting and retracting frame 8 and an electric push rod 10. The pressure support frame 6 is installed on the ground 1, the adjusting and retracting frame 8 is slidably connected to the inside of the pressure support frame 6, the hydraulic lifting rod 5 is fixedly installed on the top of the pressure support frame 6, the bottom end of the hydraulic lifting rod 5 extends to the inside of the pressure support frame 6 and is fixedly connected to the adjusting and retracting frame 8, and the electric push rod 10 is fixedly installed inside the adjusting and retracting frame 8.

[0030] The pipeline fixing structure also includes a fixing frame 11, a bidirectional screw 12, two fixed arc plates 13 and a driving motor 15. The fixing frame 11 is fixedly connected to the side of the adjusting and shrinking frame 8 away from the pressure support frame 6. The telescopic end of the electric push rod 10 is fixedly connected to the fixing frame 11. The bidirectional screw 12 is rotatably connected to the inside of the fixing frame 11. The driving motor 15 is fixedly connected to one side of the fixing frame 11. The output end of the driving motor 15 rotates through one side of the fixing frame 11 and is fixedly connected to the bidirectional screw 12. The two fixed arc plates 13 are both threadedly sleeved on the outer surface of the bidirectional screw 12 and are slidably connected to the inside of the fixing frame 11. The opposite surfaces of the two fixed arc plates 13 are provided with fixing grooves 16. Positioning rings 17 are installed inside the two fixing grooves 16. The inside of the positioning ring 17 is fixedly connected to the grouting pipe 14.

[0031] Two positioning slide bars 9 are fixedly connected inside the pressure support frame 6, and the adjustment and retraction frame 8 is slidably connected to the two positioning slide bars 9. A control panel 7 is fixedly installed on one side of the pressure support frame 6, and a cement slurry storage tank 3 is fixedly installed on the top of the ground 1. The output end at the bottom end of the cement slurry storage tank 3 is fixedly connected to a connecting hose 4, and the end of the connecting hose 4 away from the cement slurry storage tank 3 is fixedly connected to the grouting pipe 14.

[0032] Furthermore, when using the device, the hydraulic lifting rod 5 is started by connecting an external power source. The hydraulic lifting rod 5 moves downward and drives the adjusting and retracting frame 8 to move downward under the guidance of the two positioning slide bars 9. The downward movement of the adjusting and retracting frame 8 will drive the fixing frame 11 to move downward. Subsequently, the electric push rod 10 is started by connecting an external power source. The electric push rod 10 drives the fixing frame 11 to approach the grouting pipe 14. Subsequently, the driving motor 15 is started by connecting an external power source. The driving motor 15 drives the bidirectional screw 12 to rotate. The rotation of the bidirectional screw 12 drives the two fixed arc plates 13 to move in opposite directions, so that the fixing grooves 16 on the two fixed arc plates 13 are engaged with the positioning rings 17 on the grouting pipe 14, so that the two fixed arc plates 13 can quickly install and fix the grouting pipe 14. Subsequently, the cement slurry storage tank 3 grouts the grouting pipe 14 through the connecting hose 4, thereby facilitating the cement slurry pressure work on the gap between the casing 2 and the half-way cementing.

[0033] Through the cooperation of the fixing frame 11, the bidirectional screw 12, the two fixed arc plates 13, the adjustment and contraction frame 8 and the pressure support frame 6, the bidirectional screw 12 will drive the two fixed arc plates 13 to move in opposite directions, so that the fixing grooves 16 on the two fixed arc plates 13 are engaged with the positioning rings 17 on the grouting pipe 14, so that the two fixed arc plates 13 can quickly install and fix the grouting pipe 14, further improving the convenience of the grouting pipe 14 during fixed installation.

[0034] By setting the adjustable retractable frame 8 and the electric push rod 10, the electric push rod 10 can adjust the length according to the position of the grouting pipe 14, so that the position of the fixed frame 11 can be adjusted according to different diameters and different sites, thereby increasing the practicality of the device.

[0035] Working principle: The hydraulic lifting rod 5 is started by connecting an external power source. The hydraulic lifting rod 5 moves downward to drive the adjusting and retracting frame 8 to move downward under the guidance of the two positioning slide bars 9. The downward movement of the adjusting and retracting frame 8 will drive the fixed frame 11 to move downward. Then, the electric push rod 10 is started by connecting an external power source. The electric push rod 10 drives the fixed frame 11 to approach the grouting pipe 14. Then, the driving motor 15 is started by connecting an external power source. The driving motor 15 drives the bidirectional screw 12 to rotate. The rotation of the bidirectional screw 12 drives the two fixed arc plates 13 to move in opposite directions, so that the fixing grooves 16 on the two fixed arc plates 13 are engaged with the positioning rings 17 on the grouting pipe 14, so that the two fixed arc plates 13 can quickly install and fix the grouting pipe 14. Then, the cement slurry storage tank 3 grouts the grouting pipe 14 through the connecting hose 4, so as to facilitate the cement slurry pressure work on the gap between the casing 2 and the half-way cementing.

[0036] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A half-way cementing casing pressure device, characterized in that: include: The ground (1) has a semi-cemented well drilled on the ground (1), and a casing (2) is lowered and installed in the semi-cemented well; A pipeline fixing structure, the pipeline fixing structure is located on the ground (1); The pipeline fixing structure comprises a pressure support frame (6), a hydraulic lifting rod (5), an adjusting and shrinking frame (8) and an electric push rod (10); the pressure support frame (6) is installed on the ground (1), and the adjusting and shrinking frame (8) is slidably connected to the inside of the pressure support frame (6); The hydraulic lifting rod (5) is fixedly mounted on the top of the pressure support frame (6), the bottom end of the hydraulic lifting rod (5) extends to the inside of the pressure support frame (6) and is fixedly connected to the adjustment and retraction frame (8), and the electric push rod (10) is fixedly mounted inside the adjustment and retraction frame (8).

2. A half-way cementing casing pressure device according to claim 1, characterized in that: The pipeline fixing structure also includes a fixing frame (11), a bidirectional screw (12), two fixing arc plates (13) and a driving motor (15); The fixing frame (11) is fixedly connected to a side of the adjusting and retracting frame (8) away from the pressure support frame (6), and the telescopic end of the electric push rod (10) is fixedly connected to the fixing frame (11); The bidirectional screw (12) is rotatably connected to the interior of the fixed frame (11), and the drive motor (15) is fixedly connected to one side of the fixed frame (11); The output end of the driving motor (15) rotates through one side of the fixing frame (11) and is fixedly connected to the bidirectional screw (12); The two fixed arc plates (13) are both threadedly sleeved on the outer surface of the bidirectional screw (12) and are slidably connected to the inside of the fixed frame (11).

3. A half-way cementing casing pressure device according to claim 2, characterized in that: The opposite surfaces of the two fixed arc plates (13) are provided with fixing grooves (16), positioning rings (17) are installed inside the two fixing grooves (16), and the inside of the positioning rings (17) is fixedly connected with a grouting pipe (14).

4. A half-way cementing casing pressure device according to claim 1, characterized in that: The pressure support frame (6) is internally fixedly connected with two positioning slide bars (9), and the adjustment and contraction frame (8) is slidably connected with the two positioning slide bars (9).

5. The half-way cementing casing pressure device according to claim 1 is characterized in that: A control panel (7) is fixedly mounted on one side of the pressure support frame (6).

6. A half-way cementing casing pressure device according to claim 3, characterized in that: A cement slurry storage tank (3) is fixedly installed on the top of the ground (1); an output end at the bottom of the cement slurry storage tank (3) is fixedly connected to a connecting hose (4); and one end of the connecting hose (4) away from the cement slurry storage tank (3) is fixedly connected to a grouting pipe (14).

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