CN205349254U - Flexible conveyor of drilling rod liftable of offshore oil production platform - Google Patents

Abstract

The utility model discloses a lifting and lowering flexible conveying device for drill pipes on an offshore oil production platform, comprising: a hydraulic system, a material rack, a conveying trough, a rotating arm, a material unloading push plate, and a base; the hydraulic system is a power system, including Outrigger cylinders, lifting cylinders, and unloading cylinders. The hydraulic system performs stepless speed regulation according to needs, realizing the flexible transportation of drill pipes on offshore oil production platforms; the material rack is driven by the outrigger cylinders to tilt the drill pipes. Roll into the conveying trough; the lifting cylinder is connected with the base to control the lifting of the rotating arm; the conveying trough is in a V-shape symmetrical on both sides, embedded in the rotating arm, and is used to transport drill pipes The unloading push plate is made into a hook shape, and under the drive of the unloading oil cylinder, it extends into the working hole of the conveying trough, and pushes the drill pipe to roll out of the conveying trough; the offshore oil production provided by the utility model The drill pipe liftable and flexible conveying device of the platform realizes the conveyance of the drill pipe to the manipulator of the platform, and the conveyance is convenient and reliable.

Description

Drill pipe liftable flexible conveying device for offshore oil production platform

Field

The utility model relates to a drilling tool conveying device, in particular to a lifting and lowering flexible conveying device for drilling rods of an offshore oil production platform.

Background technique

As early as the beginning of the 20th century, the research on the drill pipe delivery system of offshore drilling platforms was carried out abroad. By the middle and late 20th century, this technology became mature and began to be widely used. Remarkable results have been achieved, but domestic research and application of drill pipe conveying devices are still relatively small. The method of lifting drill pipes on the drill floor has always been the crane lifting method in China. With the development of science and technology, the technical level and requirements of various aspects have improved, and the drill pipe conveying technology has gradually become high-precision, high-efficiency, and high-level. move closer. As an indispensable part of drilling machines, drill pipe delivery devices have been widely used in developed countries such as the United States, Germany, and Japan. In recent years, due to the continuous development and innovation of drilling technology, higher requirements have been placed on the drilling speed. How to quickly and safely transport the drilling tools from the platform to the drilling floor requires a higher level of mechanization of the drilling tool delivery device. Oil workers are freed from heavy labor, which is the necessity of drilling technology. Therefore, at present, all countries pay attention to the development and application of drilling tool conveying devices. With the development of drilling rigs in my country, automatic drilling rigs are the development trend of drilling rigs. It can be done in the operating room, which not only simplifies data management, reduces downtime, but also greatly improves the safety of the drilling rig when drilling.

Utility model content

The utility model aims at liberating the labor force, improving the conveying accuracy of the drill pipe and improving the drilling work efficiency, and provides a safe, reliable and conveniently operated liftable and flexible conveying device.

In order to achieve the above object, the technical scheme adopted in the utility model is as follows:

A drill pipe liftable flexible conveying device for an offshore oil production platform, comprising: a hydraulic system, a material rack, a conveying trough, a rotating arm, a discharge push plate, and a base; the hydraulic system is a power system; the material in the initial position The frame is adjacent to the conveying trough; the conveying trough is connected to the rotating arm, the discharge push plate is hinged on the conveying trough, and the base is made of high-strength structural steel to support and fix the entire device bottom plate.

Preferably, the hydraulic system includes an outrigger cylinder, a lifting cylinder, and an unloading cylinder. There are three outrigger cylinders, and the outrigger cylinders move synchronously and have consistent working strokes; Lifting oil cylinder, the I lifting oil cylinder and the II lifting oil cylinder are respectively fixed on the base, the I lifting oil cylinder and the II lifting oil cylinder are multi-stage oil cylinders with the same structure, driving the rotating arm to lift; The unloading oil cylinder is hinged on the conveying trough; the hydraulic system can perform stepless speed regulation according to needs, so as to realize the flexible conveying of drill pipes on the offshore oil production platform.

Preferably, the material rack adopts three steel plates of equal thickness, which are respectively hinged with the rear legs of the material rack at the rear end and supported by the outrigger oil cylinder at the front end; the steel plates have the same flatness after being installed, and the The outrigger cylinder drives the back leg of the material rack to tilt at a certain angle, so that the drill pipe rolls into the conveying trough under the action of gravity; tumble.

Preferably, the rotating arm includes an I rotating arm and a II rotating arm, and the I rotating arm and the II rotating arm are respectively connected to the base to form a composite hinge; the I rotating arm is connected to the I lift cylinder Driven by the drive, the II rotating arm is raised by 35-45 degrees under the driving of the II lifting cylinder, and the I rotating arm and the II rotating arm cooperate to lift the drill pipe; the II The rotating arm is equipped with two rollers, the rollers are embedded in the wheel groove at the bottom of the conveying trough, and the rollers roll in the wheel groove at the bottom of the conveying trough, reducing the distance between the conveying trough and the rotating arm. friction.

Preferably, the conveying trough is embedded in the rotating arm, and the conveying trough includes two shaped steels, two grooved plates and a plurality of connecting plates, and the connecting plates are welded at equal intervals on the sides of the shaped steels, the The groove plate is welded on the upper edge of the section steel to form a symmetrical V-shaped groove on both sides, which is used to consign the drill pipe; one end of the conveying groove is provided with a baffle to prevent the drill pipe from slipping out when it is transported obliquely. There are three retaining columns on the side to prevent the drill pipe from rolling out of the conveying chute due to inertia.

Preferably, the unloading push plate is made into a hook shape, rotates around a fixed hinge under the drive of the unloading cylinder, extends into the working hole of the conveying trough, and pushes the drill pipe to roll out of the conveying trough .

The utility model implements a drill pipe liftable and flexible conveying device for an offshore oil production platform, and its beneficial effects are as follows:

The utility model relates to a lifting and lowering flexible conveying device for drilling rods of an offshore oil production platform, which overcomes many difficulties in drilling operations. During the drilling process, the drill pipe needs to be transported from the deck to the drilling platform, and with the increase of the wellbore, it is necessary to continuously connect the drill pipe to the drill string so that the drilling process continues. In order to replace the drilling tools, frequent Lift the drill string out of the wellbore, install the drill pipe or other equipment, and then put it downhole. Usually drilling tools such as drill pipes are relatively long, thick in diameter and heavy in weight, so conveying drill pipes is a highly repetitive and intensive work. And a kind of drilling pipe lifting flexible conveying device of the offshore oil production platform of the present utility model, the outrigger oil cylinder rises, and the drilling pipe just can roll into the conveying trough along the material frame, under the drive of II lifting oil cylinder, II rotating arm Lifting, and then the I lifting cylinder moves to drive the I rotating arm to rise, and at the same time push the conveying trough to roll along the II rotating arm to transport the drilling tools to the drill floor. The whole process is highly mechanized and reduces the number of operators during drilling. Reduce labor intensity and improve drilling efficiency.

Description of drawings

Fig. 1 is a schematic diagram of an initial station of an embodiment of a drill pipe liftable flexible conveying device of an offshore oil production platform according to the present invention;

Fig. 2 is a schematic diagram of the second station when the drill pipe can be lifted and lowered by the flexible conveying device of the offshore oil production platform of the present invention;

Fig. 3 is a schematic diagram of the third station when the drilling pipe can be lifted and lowered by the flexible conveying device of the offshore oil production platform of the present invention;

Fig. 4 is a schematic diagram of the final state of the utility model when the drill pipe can be lifted and lowered by the flexible conveying device of the offshore oil production platform;

Fig. 5 is a partial schematic diagram of the cooperation between the roller and the conveying groove on the rotating arm of the drill pipe liftable flexible conveying device II of the offshore oil production platform of the present utility model;

Fig. 6 is a schematic diagram of unloading of a drill pipe liftable flexible conveying device of an offshore oil production platform according to the present invention.

In the figure: 1-I lifting cylinder, 2-leg cylinder, 3-material rack, 4-base, 5-conveying trough, 51-shaped steel, 52-slot plate, 53-connecting plate 6-drill pipe, 7- I rotating arm, 8-II rotating arm, 9-II lifting cylinder, 10-unloading cylinder, 11-roller, 12-unloading push plate, 13-rear outrigger

detailed description

Below in conjunction with accompanying drawing, the utility model is further described.

As shown in Figures 1, 2, 3, 4, 5, and 6, the drill pipe liftable flexible conveying device of the offshore oil production platform includes: a hydraulic system, a material rack 3, a rotating arm, a base 4, a conveying trough 5, and a discharge pusher plate 12. The hydraulic system is a power system, including the supporting leg oil cylinder 2, the I lifting oil cylinder 1, the II lifting oil cylinder 9, and the discharge oil cylinder 10. The material rack 3 adopts three steel plates of equal thickness, hinged at the rear end with the rear outrigger 13 of the material rack, and supported by the outrigger cylinder 2 at the front end, and the material rack 3 is adjacent to the conveying trough 5 at the initial position, supporting the drill pipe 6 . The rotating arm includes I rotating arm 7 and II rotating arm 8, and I rotating arm 7 and II rotating arm 8 are respectively connected with the base 4 to form a composite hinge; degree, the II rotating arm 8 is raised by 35-45 degrees under the drive of the II lifting cylinder 9, and cooperates with the lifting drill pipe 6; the II rotating arm 8 is equipped with two rollers 11, and the rollers 11 are embedded in the wheel groove at the bottom of the conveying groove 5 to roll , to reduce the friction between the delivery tank 5 and the II rotating arm 8 . The conveying trough 5 is embedded in the rotating arm, and includes two shaped steels 51, two grooved plates 52 and a plurality of connecting plates 53, the connecting plates 53 are welded to the sides of the shaped steels 51 at equal intervals, and the grooved plates 52 are welded to the upper edge of the shaped steels 51. A V-shaped groove symmetrical on both sides is formed to transport the drill pipe 6; a baffle plate is set at one end of the conveying trough 5 to prevent the drill pipe from slipping out when it is transported obliquely; there are three retaining columns on the side of the conveying trough to prevent the drill pipe 6 from rolling out due to inertia The delivery tank 5. The unloading push plate 12 is made into a hook shape, rotates around a fixed hinge under the drive of the unloading oil cylinder 10, stretches into the working hole of the conveying trough 5, and promotes the drilling rod 6 to roll out of the conveying trough 5.

As shown in Figures 1, 2, 3, 4, 5, and 6, the specific implementation steps of a drill pipe liftable flexible conveying device for an offshore oil production platform of the present invention are as follows:

The initial state is shown in Figure 1, the drill pipe 6 is discharged on the material rack 3; in the second step, the outrigger cylinder 2 moves, and the material rack 3 is inclined at a certain angle under the promotion of the outrigger oil cylinder 2, and the drill pipe 6 under the force of gravity Roll under the action, and finally roll into the delivery trough 5, as shown in Figure 2; in the third step, the II lifting cylinder 9 moves, and the II rotating arm 8 is lifted under the push of the II lifting cylinder 9 until it reaches the third working position , II rotating arm 8 stops moving, as shown in Figure 3, wherein, when II rotating arm 8 lifts, the roller 11 that links to each other with II rotating arm 8 rolls in the wheel groove of delivery groove 5, as shown in Figure 5; In four steps, the I lifting cylinder 1 starts to move, and the I rotating arm 7 lifts under the promotion of the I lifting cylinder 1. Since the left end of the delivery trough 5 is hinged together with the left end of the I rotating arm 7 through a reliable pin connection, then, The conveying trough 5 moves toward the platform direction under the promotion of the I rotating arm 7, and when the drill pipe 6 reaches the position of the manipulator of the oil production platform, the I lifting cylinder 1 stops, and the drill pipe 6 is picked up by the manipulator of the oil production platform, and the feeding is completed; The action is completely opposite to the feeding action, but when the unloading process is in the position shown in Figure 2, the unloading cylinder 10 starts to move, as shown in Figure 6, the piston rod of the unloading cylinder 10 is extended, pushing the hinged The discharge push plate 12 on the top rises, and then pushes the drill pipe 6 to roll onto the material rack 3, and reaches the final working position, which is shown in Figure 1.

Claims (6)

1. A drill pipe lifting flexible conveying device of an offshore oil production platform, comprising: a hydraulic system, a material rack, a conveying trough, a rotating arm, a discharge push plate, and a base; the hydraulic system is a power system; The material rack is adjacent to the conveying trough; the conveying trough is connected to the rotating arm, the unloading push plate is hinged on the conveying trough, and the base is made of high-strength structural steel, which is supported and fixed The bottom plate of the whole device. 2. A drill pipe liftable and flexible conveying device for an offshore oil production platform as claimed in claim 1, characterized in that: said hydraulic system includes outrigger cylinders, lifting cylinders, and unloading cylinders; said outrigger cylinders have three One, the outrigger cylinders move synchronously, and the working strokes are consistent; the lifting cylinders include I lifting cylinders and II lifting cylinders, and the I lifting cylinders and the II lifting cylinders are fixed on the base respectively, and the I lifting cylinders are respectively fixed on the base. The lifting cylinder and the II lifting cylinder are multi-stage cylinders with the same structure, driving the rotating arm up and down; the unloading cylinder is hinged on the delivery trough; the hydraulic system performs stepless speed regulation according to needs, realizing offshore Flexible delivery of drill pipes on oil production platforms. 3. The lifting and lowering flexible conveying device for drill pipes on an offshore oil production platform as claimed in claim 1, characterized in that: the material rack adopts three steel plates of equal thickness, which are hinged to the rear legs of the material rack at the rear end respectively , supported by the outrigger cylinder at the front end; the steel plate has the same flatness after installation, and is driven by the outrigger cylinder to incline at a certain angle around the rear outrigger of the material rack, so that the drill pipe is under the action of gravity Roll down into the conveying trough; the front end of the material rack has a retaining post to prevent the drill pipe from rolling down in the opposite direction. 4. The drill pipe liftable and flexible conveying device of an offshore oil production platform according to claim 1, wherein the rotating arm comprises an I rotating arm and an II rotating arm, and the I rotating arm and the II rotating arm The arms are respectively connected with the base to form a composite hinge; the I rotating arm is raised by 30-40 degrees under the driving of the I lifting cylinder, and the II rotating arm is raised under the driving of the II lifting cylinder 35-45 degrees, the I rotating arm and the II rotating arm cooperate to lift the drill pipe; the II rotating arm is equipped with two rollers, and the rollers are embedded in the wheel groove at the bottom of the conveying trough. Rolling in the wheel groove at the bottom of the conveying trough reduces the friction between the conveying trough and the rotating arm. 5. The lifting and lowering flexible conveying device for drill pipes of an offshore oil production platform according to claim 1, characterized in that: the conveying trough is embedded in the rotating arm, and the conveying trough includes two pieces of section steel, two pieces of Slot plate and a plurality of connecting plates, the connecting plates are welded at equal intervals on the side of the profiled steel, and the slotted plate is welded on the upper edge of the profiled steel to form a symmetrical V-shaped groove on both sides for consignment of drill pipes; One end of the conveying trough is provided with a baffle plate to prevent the drilling rod from sliding out when being transported obliquely, and there are three retaining columns on the side of the conveying trough to prevent the drill rod from rolling out of the conveying trough due to inertia. 6. The lifting and lowering flexible conveying device for drill pipes on offshore oil production platforms as claimed in claim 1, characterized in that: said unloading push plate is made into a hook shape and fixed around it under the drive of said unloading oil cylinder The hinge rotates, stretches into the working hole of the delivery trough, and pushes the drill rod to roll out of the delivery trough.