CN107339073A - A kind of ground drilling rod lifting jack - Google Patents

Abstract

A kind of ground drilling rod lifting jack, including stand and lifting frame, connected between stand and lifting frame by rotating mechanism, lifting frame can rotate around the rotating shaft of rotating mechanism, in the stopper slot that drilling rod can be turned in lifting frame by drilling rod conveyer from ground, drilling rod support mechanism can adjust extension elongation of the drilling rod in lifting frame end, drilling rod can be locked at stopper slot by drilling rod clamping mechanism in drilling rod lifting process, lifting frame can be promoted to overturn by lifting hydraulic cylinder, drilling rod is lifted to the precalculated position of drilling platforms.In addition, also drilling rod can be transmitted back to by ground from drilling platforms by opposite process.The equipment safety is reliable, on the basis of the efficiency of the stability of operation and operation is improved, simplifies structure, overcomes the limitation of existing equipment in use, can complete the conveying task of well site different model drilling rod.

Description

ground drill pipe lifter

technical field

The invention belongs to the technical field of drilling rod lifting devices for petroleum machinery, and in particular relates to a ground drilling rod lifting device.

Background technique

In the field of oil drilling, the delivery of drill pipe is an important factor affecting the drilling efficiency. During the drilling process, land oil drilling rigs spend about 40% of their time processing drill pipe. my country's traditional land drilling rigs mainly use drill floor drawworks and cranes to complete the transportation of drill pipes on the well site. During the transportation of drill pipes, electric or pneumatic small winches are generally used to connect wire ropes to lift the drill pipes up and down the drilling site. It is one of the most dangerous jobs in drilling operations that must be completed with the cooperation of the derrick worker during tripping and tripping operations. In addition, this work is highly repetitive and labor-intensive, and takes a lot of time, resulting in low drilling efficiency and high operating costs.

In recent years, the overall technical level of domestic petroleum equipment has been greatly improved. However, it is far behind the international level in terms of drilling string operation equipment, which has seriously affected the development of domestic oil drilling rig equipment. At present, our country still adopts the traditional drill pipe delivery method; many scientific research units have begun to design and research new automatic drill pipe delivery devices for land oil drilling rigs, and some of them have entered the field test and testing stage. The birth of the new drill pipe delivery device will Reduce the number of workers exposed to the drill floor and reduce the labor intensity of the workers. It also improves the drilling efficiency and shortens the drilling cycle to a certain extent, thus reducing the operating cost. However, most of the drill pipe conveying devices currently developed in our country have single functions and large working limitations. They have poor stability during operation and are easy to cause damage to the drill pipe thread and the rod body, which will bring many problems in practical applications. Disadvantages.

Contents of the invention

In order to overcome the deficiencies of the above-mentioned technologies, the present invention provides a ground drill pipe lifter; the device is safe and reliable, has a wide application range and high stability, and further reduces the labor intensity of the staff and the damage to the drill pipe thread and the rod body. damage; it can safely and reliably transport the drill pipes on the ground to the drilling platform, and return the drill pipes from the drilling platform to the ground after the drilling work is completed; in addition, the device can meet the transportation requirements of various types of drill pipes, smoothly Complete the delivery tasks of different drill pipes to meet the needs of different well sites.

In order to achieve the above object, the present invention is achieved through the following technical solutions:

An automatic lifting device for ground drill rods, comprising a platform 1 and a lifting frame 2, the platform 1 and the lifting frame 2 are connected by a rotating mechanism 11, and the lifting frame 2 can rotate around the rotating shaft of the rotating mechanism 11; A drill pipe delivery device 3 is installed on the outside of the platform 1 described above, and a limiting groove 17 is arranged on the lifting frame 2, and the drilling rod delivery device 3 can transport the ground drilling rod 18 to the limiting groove 17 of the lifting frame 2; A hydraulic lifting mechanism 9 is installed in the above-mentioned platform 1, and the hydraulic lifting mechanism 9 lifts the drill pipe 18 from the limit groove 17 when the lifting frame 2 falls;

The lifting frame 2 is equipped with a drill rod supporting mechanism 12, and the drilling rod supporting mechanism 12 can move along the slideway 14 of the lifting frame 2.

The lifting hydraulic cylinder base 6 and the slideway 8 are installed in the platform 1, and the lifting hydraulic cylinder base 6 and the lifting hydraulic cylinder 5 are connected through a rotating shaft; the lifting hydraulic cylinder base 6 can be pushed by the hydraulic cylinder 7 Moving along the slideway 8, the angle between the lifting hydraulic cylinder 5 and the lifting platform 2 can be adjusted by changing the position of the lifting hydraulic cylinder base 6.

The limiting groove 17 is located in the middle of the lifting frame 2, and the limiting groove 17 is respectively provided with two square holes 16 directly above the lifting mechanism 9, and the two sides of the limiting groove 17 are provided with slideways 14, and the square holes 16 and The positions of the lifting mechanism 9 are corresponding, and when the lifting frame 2 falls to the level with the position of the stand 1, the lifting mechanism 9 can stretch out from the square hole 16.

The drill rod supporting mechanism 12 includes a hydraulic cylinder and a supporting plate, and the supporting plate can move along the slideway 14 under the push of the hydraulic cylinder.

The bottom of the lifting frame 2 is provided with a rotating mechanism 11 connected with the stand 1 and a base 15 connected with the lifting hydraulic cylinder 5 .

The platform 1 is equipped with a plurality of lifting frame supports 10 .

The drill pipe conveying device 3 is driven by a hydraulic cylinder 4,

The extension length of the drill rod 18 can be adjusted through the support mechanism 12 .

The lifting frame 2 is equipped with a drill rod clamping mechanism 13 , and the drill rod clamping mechanism 13 can adjust its position along the slideway 14 .

Beneficial effects of the present invention:

The device can safely and efficiently complete the delivery task of the drill pipe, has a wide application range and high stability, further reduces the labor intensity of the staff and causes damage to the drill pipe thread and the rod body; it can safely and reliably lift the drill pipe on the ground It can be lifted to the drilling platform, and the drill pipe can be returned to the ground from the drilling platform after the drilling work is completed; in addition, the device can meet the transportation requirements of various types of drill pipe and meet the needs of various well sites.

Description of drawings

Fig. 1 is the general structural diagram of the present invention.

Fig. 2 is a structure diagram of the lifting frame of the present invention.

detailed description

The present invention will be further described below with reference to accompanying drawing:

As shown in Figure 1: a ground drill pipe lifter mainly includes a platform 1 and a lifting frame 2, the platform 1 and the lifting frame 2 are connected by a rotating mechanism 11, and the lifting frame 2 can rotate around the rotating mechanism 11 reels of rotation.

A drill pipe conveying device 3 is installed on the outside of the stand 1, and the drill pipe conveying device 3 is driven by a hydraulic cylinder 4, and the drill pipe conveying device 3 can convey the ground drill pipe to the limit groove 17 of the lifting frame 2;

Two hydraulic lifting mechanisms 9 are installed in the platform 1, when the lifting frame 2 falls to the position of the platform 1, the lifting mechanism 9 stretches out, and through the square hole 16 in the lifting frame 2, the The drill rod 18 is held out from the limiting groove 17.

The lifting hydraulic cylinder base 6 is installed in the platform 1, and the lifting hydraulic cylinder base 6 is connected with the lifting hydraulic cylinder 5 through a rotating shaft; Movement, by adjusting the position of the lifting hydraulic cylinder base 6, the angle between the lifting hydraulic cylinder 5 and the lifting platform 2 can be adjusted, so that the lifting hydraulic cylinder 5 can exert a greater thrust.

The platform 1 is equipped with a lifting frame support 10, which provides support for the lifting frame 2 after the lifting frame 2 falls back.

As shown in Figure 2: the middle part of the lifting frame 2 is a limit groove 17, and the limit groove 17 is respectively provided with two square holes 16 directly above the lifting mechanism 9, and slideways 14 are arranged on both sides of the limit groove , The bottom of the lifting frame 2 is provided with a rotating mechanism 11 connected with the platform 1 and a base 15 connected with the lifting hydraulic cylinder 5 .

The lifting frame 2 is equipped with a drill pipe support mechanism 12, the drill pipe support mechanism 12 is composed of a hydraulic cylinder and a support plate, and the support plate can move along the slideway 14 under the promotion of the hydraulic cylinder. During the process, the drill rod 18 can be supported, and the extension length of the drill rod 18 at the end of the lifting frame 2 can be adjusted to meet the delivery requirements of different types of drill rods 18 .

The lifting frame 2 is equipped with a drill rod clamping mechanism 13. After the drill rod 18 is transported to the limit groove 17, the drill rod clamping mechanism 13 is locked, which can prevent the drill rod 18 from falling out of the limit groove during the lifting process. 17 slides out to cause a safety accident, the drill pipe clamping mechanism 13 can adjust its position along the slideway 14 to meet the needs of drill pipes of different lengths.

Working principle of the present invention:

During the lifting process of the drill pipe 18, the drill pipe conveying device 3 turns the drill pipe 18 into the limit groove 17 of the lifting frame 2, adjusts the drill pipe supporting mechanism 12, and makes the drill pipe 18 stretch out to a sufficient length. After the predetermined position, the drill pipe clamping mechanism 13 is locked, the lifting hydraulic cylinder 5 pushes the lifting frame 2 to turn over 90 degrees, and the upper part of the lifting frame 2 enters between the two positioning blocks 20 of the drilling platform 19, waiting for the drilling of the drilling platform 19. The rod handling device lifts the drill pipe 18, and after the drill pipe handling device on the drilling platform 19 grabs the drill pipe 18, the clamping device 13 of the lifting frame 2 is released, the lifting hydraulic cylinder 5 shrinks, and the lifting frame 2 returns to its original position , to prepare for the next lifting mission.

When the drill pipe 18 needs to be transported back to the ground during the drilling process, the lifting hydraulic cylinder 5 pushes the lifting frame 2 to turn over between the two positioning blocks 20 of the drilling platform 19, and the drill pipe handling system of the drilling platform transports the drilling pipe to the positioning block 20 to the predetermined position, and the drill pipe 18 falls into the limit groove 17 of the lifting frame 2 during the lowering process. After the drill pipe clamping mechanism 13 is locked, the drill pipe handling device of the drilling platform releases the drill pipe, and the Lifting hydraulic cylinder 5 shrinks so that lifting frame 2 falls to the position of support 10, drill pipe hydraulic lifting mechanism 9 stretches out, and through square hole 16, drill pipe 18 is held out from limit groove 17 of lifting frame 2 , the drilling rod conveying mechanism 3 transports the drilling rod back to the ground again.

In addition, there is a slideway 8 and a horizontal hydraulic cylinder 7 at the bottom of the platform 1, which can adjust the angle of the lifting hydraulic cylinder 5, so that the lifting hydraulic cylinder 5 can exert the maximum thrust; a slideway 14 is provided on the lifting frame 2 , The drill pipe supporting mechanism 12 and the drill pipe clamping mechanism 13 can move in the slideway 14, so that the lifting device of the drill pipe 18 can meet the conveying requirements of various drill pipes of different specifications.

The present invention simplifies the structure of the system by improving and optimizing the mechanical structure of the existing drill pipe conveying device, improves the stability and efficiency of operation, and can not only convey the drill pipe on the ground to the drilling platform, but also After the drilling work is completed, the drill pipe is sent back to the ground from the drilling platform, which overcomes the limitations of existing equipment and can meet the needs of more well sites.

Claims (9)

1. A ground drilling rod lifter is characterized in that it comprises a stand (1) and a lifting frame (2), and is connected by a rotating mechanism (11) between the stand (1) and the lifting frame (2) , the lifting frame (2) can rotate around the rotating shaft of the rotating mechanism (11); the drill pipe conveying device (3) is installed on the outside of the platform (1), and the lifting frame (2) is provided with a limit groove (17 ), the drill pipe conveying device (3) can transport the ground drill pipe (18) to the limit groove (17) of the lifting frame (2); a hydraulic lifting mechanism ( 9), the hydraulic lifting mechanism (9) lifts the drill pipe (18) out of the limit groove (17) when the lifting frame (2) falls; The lifting frame (2) is equipped with a drill rod supporting mechanism (12), and the drilling rod supporting mechanism (12) can move along the slideway (14) of the lifting frame (2). 2. A ground drill pipe lifter according to claim 1, characterized in that, a lifting hydraulic cylinder base (6) and a slideway (8) are installed in the said stand (1) to lift The hydraulic cylinder base (6) is connected with the lifting hydraulic cylinder (5) through a rotating shaft; the lifting hydraulic cylinder base (6) can move along the slideway (8) under the promotion of the hydraulic cylinder (7), and the lifting hydraulic cylinder (5) ) and the lifting frame (2) can be adjusted by changing the position of the lifting hydraulic cylinder base (6). 3. A ground drill pipe lifter according to claim 1, characterized in that, the limiting groove (17) is located in the middle of the lifting frame (2), and the limiting groove (17) is located in the lifting mechanism (9) Two square holes (16) are arranged directly above, and slideways (14) are arranged on both sides of the limit groove (17). The square holes (16) correspond to the positions of the lifting mechanism (9). When the frame (2) fell to the level with the stand (1) position, the lifting mechanism (9) could stretch out from the square hole (16). 4. A ground drill pipe lifter according to claim 3, characterized in that, said drill pipe supporting mechanism (12) comprises a hydraulic cylinder and a supporting plate, and the supporting plate can be pushed by the hydraulic cylinder Move down along the slideway (14). 5. A ground drill pipe lifter according to claim 3, characterized in that, said lifting frame (2) is equipped with a drill pipe clamping mechanism (13), and the drill pipe clamping mechanism (13) The position can be adjusted along the slideway (14). 6. A ground drilling rod lifter according to claim 1, characterized in that, the lower part of the lifting frame (2) is provided with a rotating mechanism (11) connected with the stand (1) and a The base (15) to which the hydraulic cylinder (5) is connected. 7. The ground drill pipe lifter according to claim 1, characterized in that, the stand (1) is equipped with a plurality of lifting frame supports (10). 8. A ground drill rod lifter according to claim 1, characterized in that the drill rod delivery device (3) is driven by a hydraulic cylinder (4). 9. The ground drill pipe lifter according to claim 1, characterized in that, the extension length of the drill pipe (18) can be adjusted through the supporting mechanism (12).