A skid-mounted rotary well drilling machine

Abstract

The invention relates to a skid-mounted rotary tractor hoist, comprising a power transmission device, an operation room, and an operation wellhead device which is connected with the power transmission device through a steel wire rope. The power transmission device comprises an engine, a gearbox connected with the engine, an angle gearbox connected with the gearbox through a front transmission shaft, and a winch connected with the angle gearbox through a rear transmission shaft. The engine, the gearbox, the angle gearbox, the winch, and the operation room are fixedly mounted on an upper base. A lower base is placed below the upper base. A circular hole is formed in the middle of the upper base, and a center shaft is fixedly mounted in the center of the lower base. The circular hole of the upper base sleeves the center shaft of the lower base, and the upper base can rotate around the center shaft of the lower base. No track is needed, so that the problem that tracks occupy a large space is solved and the platform and ground space is saved. The skid-mounted rotary tractor hoist is small in size, light in weight, and free from limitation caused by load bearing capability of a simple offshore production platform. With the adoption of a rotary design, workover treatment of multiple wells around at a same position can be realized. Moreover, the skid-mounted rotary tractor hoist is simple in structure, convenient to use, and lowered in use and maintenance cost.

Description

technical field [0001] The invention belongs to the field of petroleum workover equipment machinery, in particular to the field of well drilling machines, in particular to a skid-mounted rotary well drilling machine. Background technique [0002] For offshore oil production platforms or land cluster wells with multiple wells distributed on one platform, since there are many oil wells distributed in one area and workover operations are frequent, a workover rig should be fixed in a land cluster well area or An offshore oil production platform makes this workover rig serve the oil wells in this area for a long time. It is an economical and practical operation method. The long-distance driving function of the wheeled workover rig is no longer applicable; The cluster well mainly adopts the way that the skid workover rig translates on the track to realize the workover operation of multiple wells by one workover rig. [0003] However, for a large number of simple offshore oil prod...

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Problems solved by technology

[0003] However, for a large number of simple offshore oil production platforms in shallow seas and shallow wells or some remote land cluster wells, there are many defects in the use of skid-mounted track-type workover rigs: first, the track will occupy a large amount of platform or ground space, making the The already narrow platform or ground space is even more congested; second, the skid-mounted track-mounted workover rig is large in size, and its weight is limited by the load-bearing capacity of a simple offshore oil production platform; third, the skid-mounted track-mounted workover higher

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