Automatic slurry pouring device for remote control casing pipe

Abstract

The utility model relates to a well completion and cementing device for an oil and gas well, in particular to an automatic slurry pouring device for a remote control sleeve. According to the technical scheme, the automatic slurry pouring device for the remote control casing pipe comprises an outer barrel, a grouting pipe, a telescopic cylinder, a telescopic rod, a power source, a remote control switch and a remote controller, the grouting pipe is installed in the outer barrel in a sliding fit mode, the telescopic cylinder is fixedly arranged on the upper portion of the outer side of the outer barrel, and the telescopic rod is fixedly arranged on the telescopic cylinder. The telescopic rod is installed in the telescopic cylinder in a sliding fit mode, and the lower end of the telescopic rod is fixedly connected with the lower end of the grouting pipe. The telescopic cylinder is powered by a power source, the power source is provided with a remote control switch, and the remote control switch is controlled by a remote controller. According to the remote-control automatic slurry pouring device for the casing pipe, when slurry needs to be poured into the casing pipe in the casing pipe running process, a wellhead operator can conduct grouting through remote control operation, intermittent operation is not needed, the workload is reduced, and the operation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to an oil and gas well completion and cementing device, in particular to a remote-controlled casing automatic mud injection device. Background Art

[0002] During current casing running operations, the typical method for injecting grout into the casing is to place the casing coupling on a wellhead elevator, and then operators use a handheld mud line to inject grout into the casing. This method of grouting results in prolonged periods of static casing during the running operation, potentially causing accidents such as casing sticking. Existing automatic casing grouting devices, which utilize check valves, springs, and sliding sleeves, are only suitable for high-pressure mud pumps and are not suitable for lower-pressure grouting pumps. Grouting pumps typically have a head of only 20 to 30 meters, which is insufficient to meet the pressure requirements of existing automatic casing grouting systems. Utility Model Content

[0003] The utility model provides a remote control automatic casing grouting device, which can be used by a wellhead operator to remotely operate the grouting when mud needs to be poured into the casing during the casing running process, without the need for interruption of operation, thus reducing workload and improving operation efficiency.

[0004] The technical solution of the utility model is as follows:

[0005] A remote-controlled automatic grouting device for casing comprises an outer tube, a grouting pipe, a telescopic cylinder, a telescopic rod, a power source, a remote control switch and a remote controller. The grouting pipe is slidably mounted in the outer tube, the telescopic cylinder is fixedly arranged above the outer side of the outer tube, the telescopic rod is slidably mounted in the telescopic cylinder, and the lower end of the telescopic rod is fixedly connected to the lower end of the grouting pipe. The telescopic cylinder is powered by a power source, and the power source is provided with a remote control switch, which is controlled by a remote controller.

[0006] Furthermore, in the remote-controlled casing automatic grouting device, the outer tube is provided with a hose connector, the hose connector is located on the opposite side of the telescopic cylinder, and the hose connector is used to connect the hose of the grouting pump.

[0007] Furthermore, the power source of the remote-controlled automatic casing grouting device is electric, hydraulic or pneumatic.

[0008] Furthermore, in the remote-controlled automatic grouting device for casing, a hook is provided at the upper end of the outer tube, and the hook is used to be fixedly connected to the bottom of a large hook of an external device.

[0009] Furthermore, in the remote-controlled automatic grouting device for casing, sealing rings are provided at the upper and lower parts between the grouting pipe and the outer tube.

[0010] The beneficial effects of the utility model are:

[0011] 1. The utility model is suitable for open grouting and does not require a grouting pump to provide pressure. When grouting is required, the telescopic rod moves downward to drive the grouting pipe out of the outer tube; when grouting is not required, the telescopic rod moves upward to drive the grouting pipe back into the outer tube without affecting the casing operation.

[0012] 2. The utility model can arbitrarily control the time of pouring mud into the casing by using a remote control, and grouting can be performed while the casing is being lowered without affecting the normal casing lowering.

[0013] 3. The sealing ring on the upper part between the grouting pipe and the outer tube of the utility model ensures that when grouting is not needed, the telescopic rod moves upward to drive the grouting pipe to retract into the outer tube, and the mud in the grouting pump hose will not flow out automatically, avoiding contamination of the wellhead and the ground.

[0014] 4. A grouting pump hose connector is provided opposite the telescopic cylinder of the present invention, and both sides of the outer cylinder can be balanced to avoid tilting of the automatic grouting device, ensure that the outer cylinder is vertical, and ensure that the grouting pipe enters the casing smoothly when extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the main view of the remote-controlled casing automatic grouting device;

[0016] Figure 2 This is the right view of the remote-controlled automatic casing grouting device. DETAILED DESCRIPTION

[0017] like Figure 1 、 2 As shown, a remote-controlled automatic casing grouting device includes an outer tube 4, a grouting pipe 7, a telescopic cylinder 9, a telescopic rod 10, a power source 6, a remote control switch 5, and a remote control. The grouting pipe 7 is slidably mounted within the outer tube 4, with a sealing ring 8 located above and 11 located below. The telescopic cylinder 9 is fixedly mounted above and outside the outer tube 4, and the telescopic rod 10 is slidably mounted within the cylinder 9, with the lower end of the telescopic rod 10 fixedly connected to the lower end of the grouting pipe 7. The telescopic cylinder 9 is powered by an electric power source 6 connected to the cylinder 9 via a cable 3. The power source 6 is equipped with a remote control switch 5, which is controlled by a remote control. The outer tube 4 is equipped with a hose connector 2, located on the opposite side of the telescopic cylinder 9, for connecting to the hose of the grouting pump. The upper end of the outer tube 4 is equipped with a hook 1, which is fixedly connected to the bottom of a large hook of an external device.

[0018] The operating process is as follows: Power source 6 is equipped with a remote control switch 5. This is controlled by a remote controller to connect and disconnect the remote control switch 5, controlling the power output of power source 6 and the sliding movement of telescopic rod 10 within telescopic cylinder 9. Under the action of power source 6, telescopic rod 10 slides up and down within telescopic cylinder 9, driving grouting pipe 7 to slide up and down within outer tube 4. During the casing installation process, grout is poured into the casing as needed.

Claims

1. A remote control automatic casing grouting device, characterized in that: It includes an outer tube, a grouting pipe, a telescopic cylinder, a telescopic rod, a power source, a remote control switch and a remote control. The grouting pipe is slidably installed in the outer tube, the telescopic cylinder is fixedly arranged above the outer side of the outer tube, the telescopic rod is slidably installed in the telescopic cylinder, and the lower end of the telescopic rod is fixedly connected to the lower end of the grouting pipe; the telescopic cylinder is powered by a power source, and the power source is provided with a remote control switch, and the remote control switch is controlled by a remote control.

2. The remote control casing automatic grouting device according to claim 1, characterized in that: The outer cylinder is provided with a hose connector, which is located on the opposite side of the telescopic cylinder and is used to connect the hose of the grouting pump.

3. The remote control casing automatic grouting device according to claim 1, characterized in that: The power source is electric, hydraulic or pneumatic.

4. The remote control casing automatic grouting device according to claim 1, characterized in that: A hook is provided at the upper end of the outer cylinder, and the hook is used to be fixedly connected to the bottom of a large hook of an external device.

5. The remote control casing automatic grouting device according to claim 1, characterized in that: Sealing rings are provided at the upper and lower parts between the grouting pipe and the outer cylinder.

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