JPS60109488A - Stand pipe conveyor for crude oil drilling - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a standpipe transport device for oil drilling, and in particular, a standpipe conveying device for oil drilling, which is held upright on the floor surface of an oil drilling tank via a rack, to a hanging arm main body. This invention relates to a standpipe transport device for oil drilling, which can be gripped by a pair of upper and lower pipe gripping hands and transported reliably and quickly to a well.

[Technical Background and Problems of the Invention] Generally, in oil drilling, a drill string inserted into a drilling well is pulled up from the well in order to replace the bit attached to its lowest end. Piping work will be carried out. Drill strings are made by connecting a large number of 6 to 12 m long drill pipes, so in order to speed up the pipe lifting work, drill pipe 2 is used to speed up the work.
．． It is divided into three pipes (the divided pipes are called standpipes), and the standpipes are held upright on the floor of the tower near the well via racks. After the bit is replaced, a so-called snowfall operation is performed in which the standpipes are successively connected and lowered into the well.

A standpipe conveying device is used as a means for conveying the standpipe from the rack to the well or vice versa during these lifting and snowfall operations.

However, with conventional standpipe conveyance equipment,
Pipe gripping hands that grip the upper and lower parts of the stand pipe in the longitudinal direction were installed separately at the upper and lower parts of the tank, so it was necessary to synchronize the position control of the upper and lower pipe gripping hands, making it difficult to operate. This was difficult and hindered productivity improvement. In addition, there is a risk that the upper and lower pipe gripping hands will interfere with each other due to an operational error, causing an accident that may cause the standpipe to fall or be damaged.

[Object of the Invention] The present invention was devised to eliminate the drawbacks of the prior art as described above, and its purpose is to eliminate the need for position synchronization control of the upper and lower pipe gripping hands, thereby improving productivity and safety. 'Nomukai'
- It is an object of the present invention to provide a standpipe transport device for oil drilling that can achieve the following.

[Summary of the Invention] In order to achieve the object, the present invention provides an apparatus for transporting a standpipe, which is held upright on the floor surface of an oil drilling tank via a rack, to a well. A movable trolley that is movably supported; a hanging arm body that is suspended from the movable trolley and is capable of raising and lowering and rotating; It is characterized by comprising a pipe gripping hand, etc., which is protrudingly provided facing in the direction and grips the standpipe in synchronization 1).

A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

In FIG. 1, 1 is a well formed on the floor of an oil drilling tower 2, and on the floor near this well 1 is a stand for holding a stand pipe 4 upright via a rack 3. A pipe storage section 5 is formed. The rack 3 is fixed to the tower 2 and includes a comb-shaped rack body 7 having a plurality of pipe guide grooves 6 for holding the upper end of the stand pipe 4, and a slide gate 8 that partitions the pipe guide grooves 6 into individual pipes. It consists of

A movable trolley 9 is supported above the rack 3 so as to be movable on a horizontal surface.
0 is hanging down so that it can be raised and lowered and rotated freely. That is, the movable trolley 9 consists of a main trolley 11 and an auxiliary trolley 12 that reciprocate in directions perpendicular to each other (XV-axis direction), and on both sides of the main trolley 11 there are a pair of auxiliary trolleys 12 horizontally mounted on the turret 2. Main rail 1
The main bogie 1 is equipped with wheels 14 that run on the main bogie 1.
A horizontal auxiliary rail 15 orthogonal to the main rail 13 is integrally formed on the bottom of the rail 1 so as not to interfere with the main rail 13. On the other hand, the auxiliary truck 12 has wheels 16 on its upper part that run on the auxiliary rail 15, and is suspended and supported by the auxiliary rail 15 so as not to interfere with the main rail 13. There are various drive systems for the main bogie 11 and the auxiliary bogie 12, such as wheel drive, cylinder drive, and screw drive, but in this embodiment, the main bogie 11 is wheel driven, and the auxiliary bogie 12
It is a screw drive. Reference numeral 17 denotes a screw shaft drive motor for moving the auxiliary cart provided at the end of the auxiliary rail 15 , and the screw shaft (not shown) is arranged along the auxiliary rail 15 . Further, the main truck 11 and the auxiliary truck 12 are provided with detectors (not shown) for detecting their respective positions, for example, the position of the hanging arm body 10 on the xy axis with the well 1 as the origin. It is now detectable.

18 is a side roller that prevents the auxiliary truck 12 from rolling.

A support base 19 is fixed to the bottom of the auxiliary truck 12 and supports the hanging arm body 10 so as to be able to rotate around its axis.
A swing motor 20 is provided to drive the swing motor.

The hanging arm main body 10 is mainly composed of a support cylinder 21 rotatably supported by the support base 19, and an elevating body 22 whose base end is fitted into the support cylinder 21 so as to be movable up and down. A lifting cylinder 23 for driving the lifting body 22 up and down is connected to it. Further, a set of upper and lower pipe gripping hands 24 and 25 for gripping the stand pipe 4 in a manner that it can be freely opened and closed is provided at the base end of the elevating body 22 and at its lower end extending from the support cylinder 21. , both pipe gripping hands 24 and 25 are driven to open and close in synchronization. A vertical window 26 is formed in the support cylinder 21 and passes through the upper pipe gripping hand 2/1.25 so as to be movable up and down. In order to avoid interference with the pipe guide groove 6, the diameter is smaller than that of the pipe guide groove 6.

Next, the operation of the above embodiment will be described.

During snowfall work, first, as shown in FIG. 2, the pipe gripping hands 24 and 25 are moved close to the standpipe 4 on the rack 3 to be transported by the movable cart 9, and the standpipe 4 is gripped by the upper and lower pipes. Hand 24.25
grip in sync.

In this case, when grasping the stand pipe held in the inner part of the pipe guide groove 6, since the lower end of the elevating body 22 is smaller than the diameter of the pipe guide groove 6, it is possible to enter the inside of the stand pipe. 4 can be easily carried out. Once the stand pipe 4 is gripped, it is lifted up from the above-floor storage section 5 as shown in FIG. Rotating motor 2 to face the
The hanging arm main body 10 is rotated by the drive by 0. At this time, the elevator hand 27, which is installed above the well 1 so as to be able to rise and fall freely, lowers the stand pipe 4 to be covered in advance into the well, and waits above the well 1.

Further, the upper end of the stand pipe 4 separated from the elevator hand 27 is fixed at the entrance of the well 1 by a jack 28. Next, as shown in FIG. 5, the stand pipe 4 is moved by the movable cart 9 to below the waiting elevator hand 27, and the stand pipe 4 is raised by the lift cylinder 23 and delivered to the elevator hand 27. After the mobile cart 9 delivers the stand pipe 4 to the elevator hand 27, it moves to pick up the next stand pipe 4 on the rack 3, and the same operation is repeated thereafter. On the other hand, the elevator hand 27 that has received the stand pipe 4 descends slightly and connects the lower end of the stand pipe 4 to the upper end of the stand pipe 4 that was lowered first. While doing so, the standpipe 4 will be lowered into the well 1.

The above is an explanation for snowfall work, and when working to lift pipes, operations will be performed in the reverse order. In addition, 29 is an automatic connection device that connects or disconnects stand pipes.

In summary, the present invention exhibits the following excellent effects.

[Effects of the Invention] (1) Since the hanging arm body is suspended from a movable cart that can be moved freely on a horizontal plane, and the upper and lower pipe gripping hands are provided on this common hanging arm body, the upper and lower pipe gripping hands can be easily moved. Control to synchronize the position is not required, and the standpipe can be easily transported while keeping it in an upright position.

(21) Therefore, there is no risk of tilting or dropping the standpipe, improving safety and, moreover, enabling quick loading and unloading, thereby improving productivity.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a preferred embodiment of the present invention, and FIGS. 9-2 to 5 are explanatory diagrams showing snowfall work conditions. In the diagram, 1 is a well, 3 is a rack, 4 is a standpipe, and 9
10 is a hanging arm body, and 24 and 25 are pipe gripping hands. Patent applicant: Patent attorney representing Ishikawajima-Harima Heavy Industries Co., Ltd.
Nobuo Kinutani 10-

Claims (1)

[Claims] A device for transporting a standpipe, which is held upright on the floor of an oil drilling tank via a rack, to a well, which comprises: (1) a movable trolley supported movably on a horizontal surface above the rack; and a movable trolley that hangs down from the movable trolley. a hanging arm body which is provided to be able to rise and fall and turn freely; and a pipe gripping hand which is provided above and below the hanging arm body at a predetermined interval and protrudes facing in the same direction and grips the stand pipe in synchronization. A standpipe transport device for oil drilling, characterized by comprising: