In the process of automatic workover operation, the rollover elevator frequently passes through the pipe when the tubing is pulled up, and the rollover elevator frequently grabs the pipe at the middle wellhead when the tubing is lowered. Because the rollover elevator is affected by the improper installation of the derrick and the windy weather The influence of the overturned elevator leads to unreliable pipe penetration when the pipe is lifted, and can not hold the tubing when the pipe is lowered, which affects the stability and reliability of the automatic workover operation, thereby affecting the efficiency of the workover operation.
The utility model provides a flexible guiding device for oil field workover operation and a well workover operation device using the device, which solves the problem that in the process of automatic well workover operation, the pipe is unreliable when the pipe is turned over and lifted, and the pipe cannot be held when the pipe is lowered.
The problem of holding the oil pipe reduces the requirements for the installation accuracy of the derrick, avoids the influence of wind in windy weather, improves the stability and reliability of automatic workover operations, and thus improves the efficiency of well workover operations.
It include sequentially connected lateral telescopic adjustment mechanism（3）,roller mechanism（4）, flexible guide slide（7）. flexible guide slide（7） is connected to lower part of derrick（1） through longitudinal telescopic adjustment mechanism（3.2）. It ensure rollover elevator frequently pass through pipes reliably and the rollover elevator can accurately grasp the tubing when centering the wellhead frequently. It solved the problem of unreliable through the pipe and can unable to hold the tubing when lowered the tubing beacuse of the installation error of derrick or influence of wind in windy weather. Improve the stability and reliability of automatic workover operations. Thereby increasing efficiency.
The technical scheme of the utility model is as follows: a flexible guide device for well workover operation, which is characterized in that it comprises a lateral telescopic adjustment mechanism, a roller mechanism, and a flexible guide slideway connected in sequence, and the flexible guide slideway is connected to the longitudinal expansion and contraction adjustment mechanism through the longitudinal telescopic adjustment mechanism. The lower part of the derrick is connected.
The lateral telescopic adjustment mechanism includes a section of sleeve, the two sides of the sleeve are respectively connected with a first screw rod and a second screw rod, the end of the first screw rod is movably connected with the first positioning seat through the first pin shaft, and the second screw rod is connected with the first screw rod. The rod end is movably connected with the second positioning seat through a second pin, the second positioning seat is hinged with the roller mechanism, and the first positioning seat is hinged with the hook.
The roller mechanism is movably connected with the wire rope fixed on the derrick, and can reciprocate along the wire rope in the vertical direction. The roller mechanism includes two spaced roller support plates, a roller and a roller shaft. The two rollers are respectively installed between the roller support plates at intervals, and a central hole matching the outer diameter of the wire rope is formed between the two rollers, and the roller mechanism can be sleeved on the wire rope through the central hole.
The flexible guide slideway includes a wire rope and a wire tensioning mechanism. The upper end of the wire rope is connected to the upper part of the derrick, and the lower end extends downward along the vertical direction and is limited and guided by the longitudinal telescopic adjustment mechanism. The other end of the tight wire mechanism is fixedly connected with the derrick.
One end of the longitudinal telescopic adjustment mechanism is fixed at the lower part of the derrick, and the other end of the longitudinal telescopic adjustment mechanism is connected with the limit guide of the steel wire rope through the collar; The fourth screw rod, the end of the third screw rod is movably connected with the collar through the third pin shaft, the end of the fourth screw rod is movably connected with the third positioning seat through the fourth pin shaft, and the third positioning seat is connected with the derrick.
The tightening wire mechanism includes an adjusting screw rod and an adjusting screw sleeve, the first and last ends of the adjusting screw sleeve are respectively provided with screw sleeves matched with the adjusting screw rod; the two adjusting screw rods are respectively matched by threads. Connect with the end of the adjusting wire sleeve.
The flexible guide slides are arranged in two groups in parallel and spaced apart, wherein the two steel wire ropes are arranged in parallel and spaced apart, and the roller mechanism is installed on the two steel wire ropes in two groups, respectively. The horizontal telescopic adjustment mechanism and the longitudinal telescopic adjustment mechanism are both There are two groups, of which two sets of horizontal telescopic adjustment mechanisms are arranged in the upper part to be hinged with the two roller mechanisms respectively; Hinged.
A well workover operation device using a flexible guide device for well workover operation is characterized in that it includes a derrick, a hook hung on the derrick, an elevator connected under the hook, and a hook connected between the hook and the derrick. Flexible steering device for workover operations.
The advantages of the utility model are:
- Two sets of flexible guide devices for workover operations are added on the derrick, so that the hook of the traveling block moves up and down along the wire rope in the flexible guide device, which ensures that the rollover elevator frequently passes through the pipe reliably when the oil pipe is lifted. When running the tubing, the rollover elevator can accurately grasp the pipe when the wellhead is frequently aligned, which solves the problems of improper installation of the derrick and windy weather and wind, which affect the unreliable penetration of the pipe when starting the pipe, and the problem that the tubing cannot hold the tubing when running the pipe. Improve the stability and reliability of automatic workover operations, thereby improving the efficiency of well workover operations.
- The horizontal and vertical position adjustment of the elevator in the space above the wellhead can be realized when the upper lateral telescopic adjustment mechanism and the lower longitudinal telescopic adjustment mechanism of the flexible guide device are adjusted synchronously.