Telescopic derrick for continuous pipe operation and using method thereof

Abstract

The invention provides a telescopic derrick for continuous pipe operation and a using method thereof. The telescopic derrick comprises a telescopic derrick body and an injection head adjusting and mounting platform, wherein the injection head adjusting and mounting platform is in sliding fit with the telescopic derrick body, the telescopic derrick body is arranged on a transportation device, a lifting and pushing device is arranged on the transportation device, one end of the lifting and pushing device is hinged to the transportation device, and the lifting and pushing device is used for driving the telescopic derrick body to rotate; and the telescopic derrick body comprises a derrick lower section and a derrick upper section, the derrick lower section is in sliding fit with the derrick upper section, and the derrick upper section is driven to move through a telescopic driving device. According to the telescopic derrick for continuous pipe operation and the using method thereof, the telescopic derrick body and the transportation device are integrated for transportation, so that the transportation cost of the whole machine is reduced; and the telescopic derrick for continuous pipe operation is in a vertical state during operation, the front-back adjusting distance of an injection head is not affected by the operation height, and the operation adaptability is enhanced.

Description

technical field [0001] The invention belongs to the field of coiled tubing operation equipment in oil and gas fields, and in particular relates to a telescopic derrick for coiled tubing operations and a use method thereof. Background technique [0002] At present, the operation of coiled tubing equipment requires the long-term cooperation of the crane to suspend the injection head, and the cost of leasing or purchasing the crane drives the cost of the entire operation to remain high. When the crane is hoisted for a long time, there are phenomena such as boom pressure relief and lateral swing of the injection head. The instability caused by this phenomenon brings well control safety risks to the wellhead device. At present, the solution to this problem is the wellhead tower support frame and the traditional portal derrick instead of the crane to support and stabilize the injection head at high altitude. The wellhead tower support frame is assembled by multi-layer brackets, a...

AI Technical Summary

Problems solved by technology

The support frame needs to be disassembled and transported separately, and the transportation cost is relatively high

In addition, the traditional gantry derrick is mostly used in foreign regions with good road conditions due to its large size. The front and rear adjustment of the injection head of the traditional gantry derrick depends on the inclination angle of the derrick to compensate, which is not convenient for long-distance operation at a low position of the injection head.

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