CN210858616U

CN210858616U - Workover oil pipe plays auxiliary device down

Info

Publication number: CN210858616U
Application number: CN201921809624.2U
Authority: CN
Inventors: 李金洪; 姚志刚; 张华�; 周伟锋; 邱永发; 周在翔
Original assignee: China Petroleum and Chemical Corp
Current assignee: China Petroleum and Chemical Corp
Priority date: 2019-10-25
Filing date: 2019-10-25
Publication date: 2020-06-26
Anticipated expiration: 2029-10-25

Abstract

The utility model relates to the field of auxiliary lifting devices for workover operation oil pipes, in particular to an auxiliary lifting device for workover operation oil pipes, which comprises a base, a lifting device and a lifting device, wherein the base is used for being fixedly placed on the ground or fixedly connected to a workover platform; the rotating frame is rotatably assembled on the base; the rotating frame driving mechanism is connected with the rotating frame and drives the rotating frame to rotate; the cantilever arm is rotatably arranged on the rotating frame around the horizontal axis and is positioned at one end of the rotating frame far away from the hinge axis so as to pick up one end of the oil pipe when rotating along with the rotating frame; the pick arm is provided with a clamping jaw, the clamping jaw is provided with a clamping jaw driving mechanism, and the clamping jaw is driven by the clamping jaw driving mechanism to move to clamp and release the oil pipe. The during operation, when oil pipe appears rotating trend, can drive and choose the arm and rotate together, avoid clamping jaw centre gripping oil pipe restraint oil pipe's rotation and the problem that clamping jaw and oil pipe damage each other appears, based on this, the clamping jaw can press from both sides tight oil pipe at the during operation, avoids the oil pipe slippage, improves workover oil pipe and plays the convenience that auxiliary device used down.

Description

Workover oil pipe plays auxiliary device down

Technical Field

The utility model relates to a workover oil pipe plays auxiliary device field down, concretely relates to workover oil pipe plays auxiliary device down.

Background

There is certain distance between the workover platform at oil-water well workover in-process oil pipe in-process that rises to, workover platform's mesa also has certain height apart from ground, and this height is generally more than 1.5 meters, and when putting oil pipe, the oscillating quantity is too big when avoiding oil pipe to be hoisted, also makes things convenient for operating personnel to stand to detain the elevator on workover platform simultaneously, need rise the oil pipe to the nearer position of distance well head with the one end that the head coupling had and detain the elevator again. Also, when the tubing is picked up, the tubing needs to be lowered to a height equivalent to the tubing rack after the elevator is removed to push the tubing onto the tubing rack.

In order to overcome the technical problems of high labor intensity and potential safety hazard in manual oil pipe lifting operation, during actual operation, a corresponding auxiliary device for lifting an oil pipe in workover operation can be used for lifting the height of the oil pipe, such as the device disclosed by the application publication No. CN202560127U and the Chinese utility model patent of 2012, 11, 28 and 2012, the other end of the lifting oil cylinder is hinged with a swinging lifting arm, the other end of the lifting oil cylinder is hinged with the swinging lifting arm, the other end of the swinging lifting arm is connected with a pipe clamping component, the pipe clamping component is inserted into an inner hole of the swinging lifting arm through a plunger of the pipe clamping component, and the pipe clamping component is locked by a pin shaft after the length is adjusted. When the oil pipe is in the well, the swinging lifting arm is driven to swing through the lifting cylinder, so that the pipe clamp assembly drives one end of the oil pipe to lift and moves to a set height position of a well mouth, and the operating machine can conveniently hoist the oil pipe to go into the well; when the oil pipe is lifted up, the lower part of the oil pipe is placed into the pipe clamping component at the end part of the lifted lifting arm after the oil pipe is lifted by the oil pipe operating vehicle, then the operating machine descends the oil pipe to enable one end of the oil pipe to fall onto the sliding trolley and retreat in the slideway, the oil pipe continuously descends to a certain height and then loosens the lifting ring, the lifting cylinder retracts, and the lifting arm falls back.

Because the lifting arm is hinged on the underframe, when the lifting arm rotates around the hinge shaft, the motion of the pipe clamping component inserted at the end part of the lifting arm is a resultant motion which comprises a lifting motion and a horizontal motion towards a wellhead, similarly, the motion of the oil pipe driven by the lifting arm comprises a lifting motion and a horizontal motion towards the wellhead, and the tail end of the oil pipe is always positioned on the sliding trolley, so that the oil pipe rotates around a horizontal axis.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a workover oil pipe plays auxiliary device down to solve among the prior art workover oil pipe and oil pipe clamp easy mutual damage or the technical problem of the easy slippage of oil pipe of auxiliary device when using.

The utility model provides a workover oil pipe plays auxiliary device down adopts following technical scheme:

an auxiliary device for lifting and lowering an oil pipe in workover operation comprises a base, a lifting and lowering device and a lifting and lowering device, wherein the base is fixedly placed on the ground or fixedly connected to a workover platform; the rotating frame is assembled on the base in a rotating mode around the horizontal axis; the rotating frame driving mechanism is connected between the rotating frame and the base and is used for driving the rotating frame to rotate; the cantilever arm is rotatably arranged on the rotating frame around the horizontal axis and is positioned at one end of the rotating frame far away from the hinge axis so as to pick up one end of the oil pipe when rotating along with the rotating frame; the oil pipe clamping device is characterized in that the pick arm is provided with a clamping jaw, the clamping jaw is provided with a clamping jaw driving mechanism, and the clamping jaw is driven by the clamping jaw driving mechanism to move to clamp and release an oil pipe.

The beneficial effects are that: when an oil pipe is fed, the driving mechanism drives the rotating frame to rotate clockwise and upwards around the horizontal axis relative to the base, the rotating frame drives the cantilever arm fixed at the other end of the rotating frame to move around the rotating axis of the rotating frame, and the cantilever arm drives the oil pipe clamped by the clamping jaws to move upwards and convey the oil pipe towards the wellhead so as to convey the oil pipe to a position convenient for clamping the elevator; when the oil pipe is lifted, the driving mechanism drives the rotating frame to rotate downwards anticlockwise relative to the base around the horizontal axis, the rotating frame drives the cantilever arm fixed to the other end of the rotating frame to move around the rotating axis of the rotating frame, and the cantilever arm drives the oil pipe clamped by the clamping jaws to move downwards and conveys the oil pipe towards the position of the oil pipe storage frame so as to convey the oil pipe to the oil pipe storage frame. Above-mentioned in-process, owing to choose the arm and rotate around horizontal axis and install on the rotating turret, consequently, when oil pipe appears rotating trend, can drive and choose the arm and rotate around choosing the arm axis of rotation together, avoid clamping jaw centre gripping oil pipe restraint oil pipe's rotation and the problem that clamping jaw and oil pipe damage each other appears, based on this, the clamping jaw can press from both sides tight oil pipe at the during operation, avoids the oil pipe slippage, improves workover operation oil pipe and plays the convenience that auxiliary device used down.

Furthermore, the clamping jaw has two, and two clamping jaws are the activity clamping jaw, and clamping jaw actuating mechanism is including installing the telescoping cylinder on choosing the arm, and the telescoping cylinder drives the clamping jaw through flexible action.

The beneficial effects are that: set up two clamping jaw cooperations, can realize the stable centre gripping to oil pipe, simultaneously, the clamping jaw is driven by the telescoping cylinder, is convenient for will control opening and shutting of clamping jaw to provide great closed drive power for the clamping jaw.

Further, the clamping jaw is an arc-shaped clamping jaw.

The beneficial effects are that: the clamping jaw is arranged to be an arc-shaped clamping jaw matched with the outer contour of the oil pipe, so that the clamping jaw is prevented from damaging the outer wall of the clamped oil pipe.

Furthermore, the base is a fixed frame, the fixed frame is a vertical frame, the rotating frame is hinged to the middle of the fixed frame, and the rotating frame driving mechanism comprises a telescopic cylinder, one end of the telescopic cylinder is hinged to the lower end of the fixed frame, and the other end of the telescopic cylinder is hinged to the rotating frame.

The beneficial effects are that: the mount sets up to vertical for the mount is located the rotating turret along the horizontal direction and rotates the lateral part through the region, ensures that the mount can not restrict the extreme position of rotating turret downstream, and the rotating turret of being convenient for carries chooses the arm to change to the position that matches with oil pipe storage rack height, improves workover oil pipe and plays the convenience that auxiliary device used down.

Further, the rotating turret includes rotating frame and the movable support arm and the bearing arm that are located the rotating frame lateral part, rotating frame one end rotates around horizontal axis and assembles on the base, and one end and bearing arm fixed connection in addition, movable support arm one end with rotating frame rotates around same horizontal axis and installs on the base, the other end of movable support arm and the tip fixed connection of bearing arm, rotating frame, movable support arm and bearing arm constitute the triangle-shaped structure, realize the rotating frame around the rotation assembly of horizontal axis on the base through rotating frame and the rotation installation of movable support arm on the base, it installs at the bearing arm other end to pick the arm.

The beneficial effects are that: the rotating frame and the movable support arm are rotatably arranged on the base around the same axis, and the rotating frame, the movable support arm and the bearing arm form a triangular structure, so that the rotating frame has a more stable structure.

Furthermore, the rotating frame is a frame shaped like a Chinese character 'ri', movable support arms and bearing arms are arranged on two sides of the rotating frame, and the cantilever arms are arranged between the two bearing arms.

The beneficial effects are that: the movable support arms and the bearing arms are arranged on two sides of the rotating frame, a stable mounting base body is provided for mounting the cantilever arms, the two ends of the cantilever arms are matched with the rotating frame in a rotating mode, and the stability of the oil pipe tripping device structure is improved.

Furthermore, the bearing arm is a bending arm, and the rotating frame is connected to the bending position of the bearing arm.

The beneficial effects are that: the one end of arm is chosen in the installation of bearing arm upwards bends, rotates through self when upwards choosing oil pipe and carrying to the well head when the rotating turret, moves to extreme position back at the rotating turret for it is in the position that is closer to the well head more to choose the arm along the horizontal direction, thereby can carry oil pipe to the position that is closer to the well head more.

Furthermore, the arm picking device is also provided with a roller with a rotating axis extending along the length direction of the arm picking device, and the roller is used for being in contact with the oil pipe roller so as to prevent the oil pipe from being in sliding friction contact with the arm picking device.

The beneficial effects are that: the roller with the rotating axis extending along the length direction of the cantilever arm is arranged on the cantilever arm, sliding friction between the oil pipe and the cantilever arm is converted into rolling friction, and damage to the outer surface of the oil pipe when the auxiliary device for lifting the oil pipe in workover operation works is avoided.

Furthermore, a groove is formed in the cantilever arm, and the roller is installed in the groove.

The beneficial effects are that: the arm is picked and is seted up the recess on, and the gyro wheel is installed in the recess, avoids the gyro wheel to compare in picking the arm outstanding too high and influence placing of oil pipe in the clamping jaw.

Further, the base is provided with a fixed hook used for being hung on the workover platform.

The beneficial effects are that: the time base hook is used and is installed on the workover platform, the stability of the workover platform can be utilized, a stable installation base body is provided for the workover oil pipe tripping auxiliary device, the workover oil pipe tripping auxiliary device is enabled to have a stable installation state in the working process, the workover oil pipe tripping auxiliary device is prevented from toppling in the working process, meanwhile, the workover oil pipe tripping auxiliary device is installed on the workover platform in the installation mode of the hook, and the workover oil pipe tripping auxiliary device is convenient to disassemble and assemble.

Drawings

Fig. 1 is a schematic structural view of an embodiment 1 of the auxiliary device for pulling down an oil pipe in well workover treatment of the present invention;

fig. 2 is a diagram of the middle workover operation oil pipe tripping auxiliary device of the utility model, in which the clamping jaw of the embodiment 1 is in a state of being equal to the height of the oil pipe storage rack;

fig. 3 is a state diagram of the middle workover operation oil pipe tripping auxiliary device of the utility model with the clamping jaw of the embodiment 1 at the height equivalent to the platform surface of the workover platform;

in the figure: 1-a fixed mount; 2-a turret drive mechanism; 3-fixing the hook; 4-a well workover platform; 5-rotating the frame; 6-bearing arm; 7-movable support arm; 8-a first pin; 9-a first arm segment; 10-a second arm segment; 11-cantilever arm; 12-a clamping jaw; 13-a second pin; 14-a roller; 15-jaw drive hydraulic cylinder; 16-oil pipe.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The features and properties of the present invention are described in further detail below with reference to examples.

The utility model discloses a workover oil pipe plays specific embodiment 1 of auxiliary device down, need explain at first here, the utility model discloses workover oil pipe plays auxiliary device down aims at being used for lifting oil pipe and accepting oil pipe when the well is repaired, specifically, when the low tube, workover oil pipe plays auxiliary device and lifts oil pipe and conveys oil pipe towards the well head position, so that the spiral shell dress elevator; when the tubing is lifted, the auxiliary device for lifting the tubing in workover operation accepts the tubing taken out of the oil well, so that the end of the tubing with the coupling can be gradually lowered to a position equivalent to the height of the tubing storage rack from the height of the workover platform without depending on manpower, and the tubing is convenient to place on the tubing storage rack. When the oil pipe lifting device is used, the oil pipe lifting device is placed between an oil well and an oil pipe storage rack. In this embodiment, the structure and the working principle of the workover operation tubing tripping auxiliary device in this application are introduced by taking the example that the workover operation tubing tripping auxiliary device is installed on a workover platform when in use.

Specifically, as shown in fig. 1, the auxiliary device for tripping the workover oil pipe comprises a fixed frame 1, a rotating frame and a rotating frame driving mechanism 2, wherein the fixed frame 1 is of a rectangular frame structure and is a vertical frame. In order to install the fixing frame 1 at a working position conveniently, the fixing hook 3 is fixed at the upper part of the fixing frame 1, and when the fixing frame is used, as shown in figure 2, the fixing frame 1 is hung on the corresponding workover platform 4 through the fixing hook 3, so that the fixing connection of the fixing frame 1 on the workover platform 4 is realized. The fixing frame 1 is a base used for fixing the oil pipe taking-off device at a corresponding position.

The rotating frame is rotatably mounted on the fixed frame 1 around a horizontal axis, and as shown in fig. 1, the rotating frame comprises a rotating frame 5 shaped like a Chinese character 'ri', a bearing arm 6 and a movable support arm 7 which are fixed relative to the rotating frame 5, and the specific structure of the rotating frame and the mounting position of the rotating frame on the fixed frame 1. One end part of the rotating frame 5 is embedded in the fixing frame 1 of the rectangular frame structure and is rotatably installed on the fixing frame 1 through a first pin shaft 8.

The bearing arm 6 is the arm of bending, including first arm section 9 and second arm section 10, and the other end of rotating frame 5 along length direction and bearing arm 6 are at the department fixed connection that bends of bearing arm 6 to, rotating frame 5 has certain contained angle with first arm section 9. The two bearing arms 7 are arranged, and the two bearing arms 6 are respectively arranged on two sides of the rotating frame 5 along the width direction.

The number of the movable support arms 7 is two, and the two movable support arms 7 are respectively arranged at two sides of the fixed frame 1. Specifically, the one end of activity support arm 7 rotates through first round pin axle 8 and installs on mount 1, and the other end has certain contained angle based on rotating frame 5 and first arm section 9 with the tip fixed connection of first arm section 9 of bearing arm 7, and rotating frame 5, bearing arm 6 and activity support arm 7 enclose into the triangle-shaped structure to make the rotating turret have higher structural strength. The rotating frame 5 and the movable support arm 7 share a first pin 8 to be rotatably assembled on the fixed frame 1, so that the rotating assembly of the rotating frame on the fixed frame 1 around a horizontal axis is realized.

The arrangement that the rotating frame 5 and the first arm section 9 form a certain included angle aims at enabling the rotating frame 5, the bearing arm 6 and the movable support arm 7 to be capable of enclosing into a triangular structure, and therefore the included angle between the rotating frame 5 and the first arm section 9 can be set adaptively according to the actual working condition that the auxiliary device is used when the workover oil pipe is taken out.

The rotating frame driving mechanism 2 is connected between the fixed frame 1 and the rotating frame and is used for driving the rotating frame to rotate around a horizontal axis relative to the fixed frame 1. In this embodiment, the rotating frame driving mechanism 2 is an expansion cylinder, specifically, a rotating frame driving hydraulic cylinder, a cylinder body of the rotating frame driving hydraulic cylinder is hinged to a lower end beam of the fixing frame 1, correspondingly, a push rod end of the rotating frame driving hydraulic cylinder is hinged to a middle beam of the rotating frame 5 shaped like a Chinese character ri, so that the rotating frame driving mechanism 2 is connected between the fixing frame 1 and the rotating frame, in operation, the push rod of the rotating frame driving hydraulic cylinder extends out, the rotating frame can be pushed to rotate upwards around the first pin 8, and when the push rod of the rotating frame driving hydraulic cylinder retracts into the cylinder, the rotating frame can rotate downwards around the first pin 8.

As shown in fig. 1, the workover string tripping auxiliary device further comprises a cantilever 11 mounted at the end of the rotating frame and a clamping jaw 12 mounted on the cantilever 11. The cantilever arm 11 is rotatably mounted at an end of the second arm section 10 of the bearing arm 6 through a second pin 13 and is located between the two bearing arms 6.

Pick and install clamping jaw 12 on the arm 11, in this embodiment, pick and install two clamping jaws 12 on the arm 11, two clamping jaws 12 are the arc structure to, two clamping jaws 12 are the opposite buckling and articulate on picking the arm 11, and during the use, oil pipe is placed and is pressed from both sides tightly by the clamping jaw between two clamping jaws. In order to actuate the jaws, the jaws 12 are also provided with a jaw actuation mechanism by which the two jaws can be actuated to grip and release tubing. In this embodiment, the jaw driving mechanism is a telescopic cylinder installed on the cantilever arm 11, specifically, a jaw driving hydraulic cylinder 15.

In other embodiments, in order to simplify the structure of the workover operation tubing tripping auxiliary device and reduce the production and manufacturing cost of the workover operation tubing tripping auxiliary device, torsion springs can be arranged between the clamping jaws and the cantilever arms, and the clamping jaws are driven to clamp the tubing by utilizing the elasticity provided when the torsion springs deform.

Further, owing to choose arm 11 to rotate and install on bearing arm 6 to oil pipe must be located and chooses 11 upsides of arm and just can utilize the utility model discloses well workover oil pipe plays down auxiliary device's play down, consequently, for effective clamping oil pipe, chooses and still is provided with limit structure (not shown in the figure) between arm 11 and the bearing arm 6, and the rotation stroke of arm 11 is chosen in the limit structure restriction to guarantee that the opening between two clamping jaws 12 is towards the position of the clamping oil pipe of being convenient for all the time. Specifically, the limiting structure may be a stopper fixed on the pick arm 11 and the bearing arm 6, and the rotation stroke of the pick arm 11 is restricted by the stop of the stopper on the pick arm 11 and the stop of the bearing arm 6. In other embodiments, a torsion spring can be further installed between the pick arm and the second pin shaft, when the torsion spring is not deformed, the pick arm is restrained at the position, with the upward opening, between the two clamping jaws, so that after the oil pipe is lifted off from the auxiliary device for lifting the oil pipe down from the workover oil pipe, the torsion spring can drive the pick arm to rotate, and the clamping jaws are driven to rotate to the position, with the upward opening, between the two clamping jaws. In other embodiments, in order to simplify the structure of the auxiliary device for pulling the oil pipe in workover operation, a limiting structure is not required, and when the oil pipe is additionally installed, the cantilever arm is manually rotated and supported, so that the opening between the two clamping jaws faces to the position convenient for clamping the oil pipe.

Further, in order to prevent the outer wall of the oil pipe from being damaged due to sliding friction between the oil pipe and the pick arm 11, the pick arm 11 is further provided with a roller 14, the extending direction of the rotation axis of the roller 14 is consistent with the extending direction of the length of the pick arm 11, and specifically, in order to prevent the roller 14 from protruding too high relative to the pick arm 11 and affecting the placement of the oil pipe between the two clamping jaws 12, the roller 14 is specifically installed in a groove formed in the pick arm 11. Of course, in other embodiments, if the mounting position of the clamping jaw on the cantilever arm is relatively high, it is also not necessary to provide a groove on the cantilever arm for mounting the roller, so as to prevent impurities from accumulating in the groove and affecting the normal rotation of the roller. Of course, if the mounting position of the clamping jaw on the cantilever arm is relatively higher, and the oil pipe can not be in contact with the cantilever arm, the cantilever arm can be not provided with the roller, so that the structure of the oil pipe tripping auxiliary device for workover operation is simplified.

During the use, as shown in fig. 2, will the utility model discloses well workover oil pipe plays auxiliary device and installs on corresponding workover platform 4 down. When it is desired to lower a pipe, the jaws 12 are brought to a position corresponding to the height of the tubing rack, the tubing 16 is moved, the end of the tubing 16 having the coupling is brought between the jaws 12, then the clamping jaw driving mechanism is operated to drive the two clamping jaws 12 to clamp the oil pipe 16, then the rotating frame driving mechanism 2 is operated to drive the rotating frame to rotate clockwise and upwards, the height of one end of the oil pipe 16 with a coupling is lifted, and conveys the tubing 16 towards the wellhead until the end of the tubing 16 with the coupling is above the surface of the workover rig 4, and the end of the tubing 16 with the collar is horizontal towards the middle of the work platform 4 against the edge of the work platform, i.e. the position of the wellhead extends a certain distance S, as shown in fig. 3, which is convenient for the operator to clip the elevator on the tubing 16, thereby completing the transportation of the tubing 16 to the position convenient for the operator to clip the elevator.

When the oil pipe is lifted, as shown in fig. 3, the rotating frame driving mechanism 2 is operated to drive the rotating frame to move, so as to adjust the clamping jaws 2 to the position corresponding to the platform surface of the workover platform, after the oil pipe 16 is lifted out of the well by the hoisting device, the tail end of the oil pipe 16 is placed on the jigger of the oil pipe storage frame, the end of the oil pipe 16 with the coupling is placed between the two clamping jaws 12, the elevator is removed, the rotating frame driving mechanism 2 is operated to drive the rotating frame to rotate counterclockwise downwards until the clamping jaws 12 move downwards to the position corresponding to the height of the oil pipe storage frame, the oil pipe 16 is placed on the oil pipe storage frame, the clamping jaws 12 are opened, the oil pipe 16 is pushed to the position stored on the oil pipe storage frame, and the operation is repeated to complete the oil pipe lifting operation of the subsequent oil pipe. The specific structure of the oil pipe storage rack belongs to the prior art, and is not described in detail herein.

The difference between the embodiment 2 of the auxiliary device for pulling down the oil pipe in the well workover treatment of the utility model and the embodiment 1 is that in the embodiment 1, the fixing frame is hung on the workover platform through the fixing hook, aiming at leading the workover oil pipe tripping auxiliary device to be detachably and fixedly connected on the corresponding workover platform, therefore, the auxiliary device for taking off and taking down the oil pipe in the workover operation can also be fixedly connected to the corresponding workover platform in other detachable modes, corresponding bolt through holes are arranged on the workover oil pipe tripping auxiliary device and the workover platform, the workover oil pipe tripping auxiliary device is fixedly connected to the workover platform by penetrating bolt and nut components in the bolt through holes, after the workover is finished, and loosening the bolt and nut assembly, and disassembling the workover oil pipe lifting auxiliary device from the workover platform.

The utility model discloses well workover oil pipe plays auxiliary device's embodiment 3 down, different from embodiment 1, in embodiment 1, workover oil pipe plays down auxiliary device and hangs the dress on corresponding workover platform through fixed couple, aim at having workover oil pipe play down auxiliary device fixed mounting on corresponding workover platform, with the help of the stable structure of workover platform self, play down auxiliary device and provide a stable installation base member for workover oil pipe, the condition that the workover oil pipe plays down auxiliary device and appears empting in the course of the work is avoided appearing, under this design, in this embodiment, workover oil pipe plays down auxiliary device and passes through non-detachable mounting means fixed mounting on corresponding workover platform, in order to realize workover oil pipe plays down auxiliary device and stabilize fixed mounting on corresponding workover platform, can specifically adopt welding, Riveting and the like in a non-detachable mode.

The utility model discloses well workover oil pipe plays auxiliary device's embodiment 4 down, different from embodiment 1, in embodiment 1, the rotating turret includes rotating frame, bearing arm and activity support arm, rotating frame, bearing arm and activity support arm three enclose into the triangle-shaped structure in order to ensure that the rotating turret has higher structural strength, if select for use the material of high strength can guarantee that the rotating turret has higher structural strength, can not set up the activity support arm, rotating frame's structure can carry out the change that adapts to, the rotating turret as long as can rotate to install on the mount and can provide the installation base member for picking the arm can. Based on the conception, in the embodiment, the rotating frame is in an I-shaped structure, the bearing arm is a straight arm fixed at one end of the rotating frame, which is far away from the fixed frame, and in order to ensure that the rotating frame has structural strength meeting requirements, the rotating frame and the straight arm are made of sectional materials with large cross section sizes or materials with higher strength, so that the rotating frame is simpler in structure.

The utility model discloses well workover operation oil pipe plays auxiliary device's embodiment 5, different from embodiment 1, in embodiment 1, the rotating turret includes two sets of bearing arms and activity support arm to make the rotating turret have higher structural strength, in this embodiment, for the structure of simplifying the rotating turret, only set up a set of bearing arm and activity support arm, in order to ensure that the rotating turret has the structural strength who satisfies the requirement, bearing arm and activity support arm adopt the material preparation of large-size section bar or higher intensity. Simultaneously, in order to facilitate the installation and pick the arm, the one end that is used for the installation to pick the arm with the bearing arm sets up to Y type structure to for picking the arm and providing the installation base member.

The utility model discloses well workover oil pipe plays auxiliary device's embodiment 6, different from embodiment 1, in embodiment 1, the rotating turret love actuating mechanism and clamping jaw actuating mechanism are hydraulic cylinder, aim at providing drive power for the action of rotating turret and clamping jaw, in this embodiment, adopt the cylinder as rotating turret love actuating mechanism and clamping jaw actuating mechanism to make rotating turret love actuating mechanism and clamping jaw actuating mechanism be convenient for maintain and adjust rotating turret love actuating mechanism and clamping jaw actuating mechanism's slew velocity of drive.

The utility model discloses well workover oil pipe plays auxiliary device's embodiment 7 down, different from embodiment 1, in embodiment 1, the clamping jaw has two, aim at pressing from both sides tight oil pipe through two clamping jaw switchs, in this embodiment, only install a clamping jaw on picking the arm, and pick on the arm fixed one with clamping jaw complex stand, the stand is used for cooperating with oil pipe along the axis of rotation direction stop of picking the arm, space between clamping jaw and the stand is used for placing oil pipe, concrete during operation, place oil pipe between clamping jaw and stand, operation clamping jaw actuating mechanism drive clamping jaw presss from both sides tight oil pipe, the clamping jaw presss from both sides tight oil pipe towards the stand, the stop effect of cooperation stand, press from both sides tight oil pipe.

The utility model discloses well workover oil pipe plays embodiment 8 of auxiliary device down, different from embodiment 1, in embodiment 1, two clamping jaws articulate on picking the arm, make the clamping jaw can move under clamping jaw actuating mechanism's drive in order to press from both sides tightly and loosen oil pipe, in this embodiment, install the slide rail on picking the arm, the length extending direction of slide rail is unanimous with the length extending direction who picks the axis of rotation of arm, fixed and slide rail complex slider on each clamping jaw, install two clamping jaws direction on picking the arm through slider and slide rail cooperation, two clamping jaws of clamping jaw actuating mechanism drive realize opening and shutting of two clamping jaws along the guide rail in opposite directions and to the back of the body removal.

The utility model discloses well workover oil pipe plays auxiliary device's embodiment 9, is different from embodiment 1, and in embodiment 1, the clamping jaw is the arc clamping jaw, aims at making the clamping jaw have with the oil pipe profile that is close of centre gripping will, avoids the clamping jaw to cause the damage to the oil pipe's of centre gripping will surface, in this embodiment, for the convenience of preparation clamping jaw, sets up the clamping jaw into the pole structure of bending for form a rhombus profile after two clamping jaws are closed.

The utility model discloses well workover oil pipe plays auxiliary device's embodiment 10 down, different from embodiment 1, in embodiment 1, workover oil pipe plays auxiliary device fixed connection down on the workover platform, utilize the workover platform, for workover oil pipe plays auxiliary device down and provides a stable installation base member, in this embodiment, workover oil pipe plays auxiliary device snap-on and places subaerial, correspondingly, workover oil pipe plays auxiliary device down and has horizontal fixing frame, horizontal fixing frame goes up to rotate and installs rotating turret and rotating turret actuating mechanism.

The utility model discloses well workover oil pipe plays auxiliary device's embodiment 11 down, different from embodiment 1, in embodiment 1, well workover oil pipe plays auxiliary device's base down and is the frame type structure, the setting of base, it can install or place the position can stably to aim at guaranteeing oil pipe to play down the device at corresponding installation or place, consequently, the structure and the shape of base can carry out the change of adaptability, under this design, in the embodiment, the base is platelike structure, aim at making the base have bigger bottom surface, in order to realize that the base can install or place more stably at corresponding installation or place the position.

The utility model discloses well workover oil pipe plays auxiliary device's embodiment 12, different from embodiment 1, in embodiment 1, the rotating turret actuating mechanism includes that one end articulates at mount lower extreme, one end and rotating turret articulated telescoping cylinder, and in this embodiment, the rotating turret actuating mechanism is lead screw nut mechanism, and is concrete, installs the nut on the rotating turret to correspondingly articulate driving motor of installation on the mount, the lead screw is fixed in the pivot of motor coaxially. The axis of a hinged shaft of the driving motor hinged on the fixed frame is parallel to the rotating axial direction of the rotating frame which is rotatably assembled on the fixed frame.

The above description is only for the preferred embodiment of the present invention, and the present invention is not limited thereto, the protection scope of the present invention is defined by the claims, and all structural changes equivalent to the contents of the description and drawings of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a workover oil pipe plays auxiliary device down, characterized by includes:

the base is used for being fixedly placed on the ground or fixedly connected to the workover platform;

the rotating frame is rotatably assembled on the base around a horizontal axis;

the rotating frame driving mechanism is connected between the rotating frame and the base and is used for driving the rotating frame to rotate;

the cantilever arm is rotatably arranged on the rotating frame around the horizontal axis and is positioned at one end of the rotating frame, which is far away from the hinge axis, so as to pick up one end of the oil pipe when rotating along with the rotating frame;

the oil pipe clamping device is characterized in that the pick arm is provided with a clamping jaw, the clamping jaw is provided with a clamping jaw driving mechanism, and the clamping jaw is driven by the clamping jaw driving mechanism to move to clamp and release an oil pipe.

2. The workover tubing tripping aid of claim 1, wherein there are two of the jaws, and both jaws are movable jaws, and the jaw actuation mechanism comprises a telescoping cylinder mounted on the cantilever arm, the telescoping cylinder driving the jaws by telescoping action.

3. The workover tubing tripping aid of claim 1 or 2, wherein the gripping jaws are arcuate gripping jaws.

4. The workover tubing tripping auxiliary device according to claim 1, wherein the base is a fixed frame, the fixed frame is a vertical frame, the rotating frame is hinged to the middle of the fixed frame, and the rotating frame driving mechanism comprises a telescopic cylinder, one end of the telescopic cylinder is hinged to the lower end of the fixed frame, and the other end of the telescopic cylinder is hinged to the rotating frame.

5. The auxiliary device for lifting and lowering the oil pipe in the workover operation according to claim 1, wherein the rotating frame comprises a rotating frame, a movable support arm and a bearing arm, the movable support arm and the bearing arm are positioned on the side portion of the rotating frame, one end of the rotating frame is rotatably assembled on the base around a horizontal axis, the other end of the rotating frame is fixedly connected with the bearing arm, one end of the movable support arm and the rotating frame are rotatably installed on the base around the same horizontal axis, the other end of the movable support arm is fixedly connected with the end portion of the bearing arm, the rotating frame, the movable support arm and the bearing arm form a triangular structure, the rotating assembly of the rotating frame on the base around the horizontal axis is realized through the rotating installation of the rotating frame and the movable support arm on the.

6. The auxiliary device for lifting and lowering the oil pipe in the workover operation according to claim 5, wherein the rotating frame is a frame shaped like a Chinese character ri, two sides of the rotating frame are provided with a movable support arm and a bearing arm, and the cantilever arm is arranged between the two bearing arms.

7. The workover tubing tripping aid of claim 5 or 6, wherein the bearing arm is a bent arm, and the rotating frame is connected to the bent position of the bearing arm.

8. The workover tubing tripping aid of claim 1 or 2, wherein the cantilever is further provided with a roller having a rotation axis extending along the length direction of the cantilever, the roller being adapted to contact the tubing roller to prevent the tubing from sliding and frictional contact with the cantilever.

9. The auxiliary device for lifting and lowering the workover oil pipe according to claim 8, wherein the cantilever arm is provided with a groove, and the roller is installed in the groove.

10. The workover tubing tripping aid of claim 1 wherein the base has a fixed hanger for hanging on a workover rig.