High-pressure seal inspection device and method of use thereof

Abstract

The invention proposes a high-pressure seal inspection device, which includes a suction pipe, a first leather cup rubber tube, a sealing flange, a fixed block and a linkage sleeve, two transmission columns, two connecting rods, and two limit arcs. Block, outer sleeve, transmission tube, two limit sleeve blocks, the transmission tube is provided with two semi-circumferential spiral grooves, the limit sleeve block is provided with two limit grooves, and the rotating transmission column enters the spiral groove to drive the transmission tube to rotate , when the rotating limit arc block enters the limit groove on one limit sleeve block and rotates to slide out from the limit groove on the other limit sleeve block, it can fix the transmission pipe, and also includes the connecting pipe and the inner sleeve , the inner sleeve is provided with a first water tank, the outer sleeve is provided with a second water tank, and also includes a rubber tube support frame, and a second rubber cup rubber tube is fixedly installed on the rubber tube support frame. The device has simple structure and low cost.

Description

technical field [0001] The invention relates to the technical field of high-pressure sealing inspection, in particular to a high-pressure sealing inspection device and a method for using the same. Background technique [0002] Operating procedures for wellhead inspection 1. After running the pressure test string, install the wellhead and fasten all the bolts in the wellhead. 2. Connect the ground pipeline and connect it with the 400-type cement truck, and fasten the joints of the pressure test pipeline. 3. The pipelines of the tanker and the cement truck are connected to ensure no water leakage. 4. Start the cement truck to pressurize, and when the pressure slowly rises to the specified pressure value of the pressure test, stop the cement truck and close the circulation gate. 5. Stabilize the voltage for 15 minutes, and the pressure drop is less than 0.5Mpa, which is qualified. 6. Open the circulation gate of the cement truck to release the pressure, remove the pressure t...

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Problems solved by technology

4. During the wellhead pressure test, the maximum pressure, pressure stabilization time or pressure drop must be recorded.

5. When the wellhead pressure test is performed, it must be carried out under the condition that the bolts of the wellhead are fastened intact.

However, in the traditional way, when flushing with multiple rubber cups and cups, multiple water pipes need to be connected, and most of them are controlled separately. Then, the structure of the entire water pipe is relatively complicated, occupying a large area, and the diameter of the wellhead of the oil well is small. , so that it is inconvenient to set up multiple water pipes in the oil well to supply multiple rubber tubes and leather bowls for flushing

In the traditional design, the structure is complex and the cost is high

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