RU2279534C1 - Mechanized drilling rig rack assembly (variants) - Google Patents

Abstract

FIELD: drilling equipment, particularly for cluster drilling deep oil and gas wells.

SUBSTANCE: mechanized drilling rig rack assembly comprises right and left racks pivotally connected to derrick-and-winch unit. The racks are made as L-shaped metal structures and provided with collapsible plates, which may be retained in working position. Each collapsible plate comprises built-in gutter. The collapsible plates are pivotally secured between the racks and connected to one rack by the first sides thereof, but the collapsible plate may be separately connected to both racks, that is part of collapsible plate may be connected to left rack, part thereof may be secured to right rack. Beam crane may be installed on the racks so that the beam crane moves along ramp. Cantilever rack parts are connected with supports provided with platforms and jacks pivotally connected to lower parts thereof. Aperture in working plate of derrick-and-winch unit up to collapsible plate is covered with two-member lid.

EFFECT: increased mechanization rate and safety and reduced rack length.

4 cl, 4 dwg

Description

The invention relates to equipment for deep cluster drilling of oil and gas wells, being a modernization of existing receiving bridges of drilling rigs (BU).

Known receiving bridge drilling rigs BU-3000 EUK, BU-2500 EUK, consisting of inclined and horizontal ladders, tool platform, support racks for pipes and support a horizontal ladder, supported by soil [Construction and equipment for cluster drilling of wells. Reference manual. / Kolcherin V.G. and others. - M .: Nedra, 1992. - C.113-117, 194-198. Installation of equipment during cluster drilling / Voevoda A.I. and others. - M .: Nedra, 1987. - S.149-176].

The disadvantage of this design of the receiving bridges is their large mass, the isolation of the horizontal ladder design, the low level of mechanization and the high complexity of the work of feeding pipes to the drilling rig.

Known mechanized racks of a drilling rig of the L-shaped type, selected as a prototype, consisting of an inclined ladder with a built-in gutter, pivotally attached to the tower block (VLB) BU [Patent 2102576 RU, IPC 7 E 21 V 19/14, publ. 1998]. On both sides of the ladder, the right and left racks of the frame structure with a steel grooved exhaust sheet along the upper belt are attached to the VLB. On racks a crane-beam is installed, moving along the overpass. The cantilever parts of the racks are connected to the supports of the racks, in the lower part of which pads with screw jacks are mounted on hinges. A folding platform, which is a continuation of the ladder, is pivotally mounted between the racks. The working (horizontal) position of the ladder and hinged platform is fixed with clamps. The working area of the shelving around the perimeter is fenced with a railing.

A disadvantage of the known design is the reduction of the usable space in the transport feed zone, as well as the need to turn the pipe stack 90 ° to feed it to mechanized racks, which reduces the useful front area of the loading and unloading operations (RGRR) and leads to an increase in the length of the rack. There are no devices at the pipe storage sites when disassembling the packages that limit the storage area and prevent spontaneous rolling of the pipes, which can lead to accidents.

The objective of the invention is to increase the level of mechanization, ensuring safety in the production of RGRS and reducing the length of the racks.

When carrying out the invention, the technical result is complete mechanization due to the longitudinal supply of transport for unloading, in which there is no need to deploy the package to orient it into the technological opening between the racks, reducing the length of the metal structure as a result of supplying it with a number of additional folding platforms and increasing safety due to the installation of a two-section cover on VLB BU, restrictive racks and beam beams in the storage area of packages of drill pipes on racks, which generally lit. reduce edge loading and unloading operations at the rig.

The specified technical result according to one of the options is achieved by the fact that in the mechanized racks of the drilling rig, containing the left and right racks, pivotally attached to the mast winch block of the drilling rig, supports with jacks, a flyover with a crane beam, a folding platform with fixation in the working position , new is that one of these racks is equipped with additional folding platforms with a built-in groove, as well as a two-section cover for closing the opening on the work platform, attached to the winch block. In addition, the racks are equipped with constant and adjustable racks, as well as beam beams.

The indicated technical result according to another embodiment is achieved by the fact that in mechanized racks of the drilling rig containing left and right racks, pivotally attached to the rig-winch block of the drilling rig, supports with jacks, a flyover with a crane beam, a folding platform with fixation in the working position; new is that both racks are equipped with additional folding platforms with a built-in gutter, as well as a two-section cover for closing the opening on the working platform, attached to the mast winch block. In addition, the racks are equipped with constant and adjustable racks, as well as beam beams.

The claimed group of single-object inventions meets the requirement of unity of invention, since the application relates to objects of the same type, of the same purpose, providing the same technical result.

Comparative analysis with the prototype allows us to conclude that the claimed mechanized racks are distinguished by the fact that on the left and right racks installed racks are constant and height-adjustable, with beam beams, additional hinged platforms are attached to the racks and are equipped with a two-section cover on the tower. Thus, the claimed technical solution meets the criterion of "novelty." Analysis of known technical solutions in the studied area, i.e. equipment for deep cluster drilling of oil and gas wells, allows us to conclude that there are no signs in them that are similar to the essential distinguishing features of the claimed mechanized racks, and to recognize the claimed solution meets the criterion of "inventive step".

The additional folding hinges used are hinged on one side to one of the racks or to both immediately to reduce the length of the rack and reduce the front of the loading and unloading operations.

Permanent and height-adjustable racks are installed on racks to ensure the safety of technological and cargo handling operations. Racks, adjustable in height, are made of at least two links in order to ensure the standard value of the loading and unloading height between the package and the rack itself when performing loading and unloading operations on the rack, with a minimum height of the crane overpass.

Lever beams are installed for proper storage and slinging of pipes.

A two-link lid closes the opening on the VLB BU working site to ensure technological work and the safety of the working personnel located there.

The invention is illustrated by drawings, where Fig. 1 shows a front view of mechanized racks, Fig. 2 shows a top view of mechanized racks, Fig. 3 shows a top view of a rack adjustable in height, Fig. 4 shows a front view of a rack, adjustable in height.

The mechanized shelving units BU left 1 and right 2 are L-shaped metal structures and contain hinged platforms 20 (for example, two) and additional hinged platforms 3. Each of the hinged platforms 3 and 20 has a built-in gutter. Additional folding platforms 3 (Fig. 2) are pivotally attached between the racks 1, 2 on one side to one of them (for example, the right 2), but they can be mounted on both racks differently, i.e. part - on the left 1 and part - on the right 2. Left 1 and right 2 racks are attached with fingers and eyes 4 to VLB 5 BU (Fig. 1). On racks 1,2, a crane beam 6 is installed, moving along the overpass 7. The cantilever parts of the racks 1, 2 are connected to the supports 8, in the lower part of which pads with jacks 9 (for example, screw) are pivotally attached.

In the working horizontal position, each of the hinged platforms 3, 20 is fixed with clamps 10.

The opening on the VLB 5 working platform, to the additional hinged platform 3, is covered with a two-link cover 11. The work area on the shelves is fenced with a railing 12.

The upper surfaces of the shelving 1, 2 and folding platforms 3, 20 are covered with a steel grooved exhaust sheet. In the storage zone on racks 1, 2, racks 13 of constant height and racks 14 with adjustable height are installed. Between the racks laid beam beams 15. To ensure the minimum loading height of the rack 14 with adjustable height are made articulated type (Fig.3). Rack 14 with adjustable height consists of a rigidly fixed link 17 (Fig. 4) and a pivot link 18, in which a pin 19 is mounted, having the ability to move along the vertical groove of the link 17 with subsequent fixation of the pivot link 18.

The lifting of the pipe bundles 16 on the shelves 1, 2 is as follows. The vehicle with pipes is installed under the technological opening between the racks 1, 2 with the hinged platforms 3, 20 lowered and the two-section cover 11 open (if necessary) and laid on the beam beams 15 limited by the posts 13, 14. If necessary, the height of the rack 14 is reduced by by raising the link 18 and turning it to a horizontal position, and after laying the pipe stack 16 on the shelves 1, 2, the height of the rack 14 can be increased due to the reverse translation of the link 18.

After the lifting and transport operations with the packages of pipes 16, the folding platforms 3, 20 are lifted by the crane beam 6 to a horizontal position and secured by the latches 10. As necessary, the pipes from the storage area by the crane beam 6 are fed into the gutter of the folding platforms 3, 20 and lifted by the tackle winch to the drilling site.

When moving the control unit in the bush, the platforms with jacks 9 rotate on hinges relative to the supports 8 to the side, providing the necessary clearance between the ground surface and the supports 8 of the racks. In the working position of the platform with jacks 9 are returned to their original position. Using platforms with jacks 9 (for example, screw jacks), possible irregularities in the soil are compensated, skew loads in the metal structures of the racks are eliminated, and a significant part of the weight loads from the racks to the ground is transmitted.

The proposed design of mechanized racks will reduce their length, fully mechanize the work of personnel, ensure the necessary level of safety, as well as reduce the complexity and volume of excavation, loading and unloading and technological work on supplying casing and drill pipes to the drilling site. The use of mechanized racks eliminates the use of a jib crane for unloading pipes to racks from a vehicle (BU-3000 EUK and others) and manually rolling them onto horizontal sections of the receiving bridge, and also reduces the number of workers engaged in auxiliary works.

Claims (4)

1. Mechanized racks of the drilling rig, containing left and right racks, pivotally attached to the mast winch block, jack supports, overpass with crane beam, folding platform with fixation in working position, characterized in that one of these racks is equipped with additional folding platforms with a built-in gutter, as well as a two-piece cover for closing the opening on the working platform, attached to the tower platform. 2. Mechanized shelving rig according to claim 1, characterized in that on the left and right racks installed racks with constant and adjustable height, as well as beam beams. 3. Mechanized rig racks containing left and right racks pivotally attached to the mast winch block, jack supports, overpass with crane beam, hinged platform with fixing in working position, characterized in that both of these racks are equipped with additional hinged platforms with a built-in gutter, as well as a two-link cover for blocking the opening on the working platform, attached to the mast winch block. 4. Mechanized shelving rig according to claim 3, characterized in that on the left and right racks installed racks with constant and adjustable height, as well as beam beams.

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