RU197107U1 - Mobile Drilling Platform - Google Patents

Abstract

The utility model relates to drilling equipment, namely to mobile drilling platforms of high cross-country ability, used with the ability to perform work in boundary environments such as “land-water”, in the shallow water zone, ice hummocks, snow cover, marshy terrain, can be used in seismic exploration, engineering -geological surveys, etc. in the Arctic zone. The technical problem solved by the proposed utility model is the possibility of using the drilling platform to carry out work in various conditions of the Arctic zone throughout the year, both in the winter period, when movement on the ice surface is possible, and in the summer or transition period when the ice melts or sets, that is, ensuring smooth operation throughout the year. The technical result is achieved by the fact that a mobile drilling rig containing a platform with a mover to move it during technological operations, on which a drilling rig is located with means for positioning, fixing and the possibility of bringing it into a transport position, as well as an energy supply unit, auger propellers operating from a diesel engine or diesel-electric system are used to move the platform, moreover, the screws of the auger propellers are divided into two sections, each of which is mounted on the platform with the possibility of rotation relative to the horizontal axis, and the front sec Ia is pivotable by means of hydraulic cylinders at an angle of not less than 40 °.

Description

The utility model relates to drilling equipment, namely to mobile drilling platforms of high cross-country ability, used with the ability to perform work in boundary environments such as “land-water”, in the shallow water zone, ice hummocks, snow cover, marshy terrain, can be used in seismic exploration, engineering -geological surveys, etc. in the arctic zone.

The known layout of a mobile drilling rig (patent for the invention of the Russian Federation No. 2387785, filed September 3, 2008), containing structural and functional elements, a winch, winch brake, emergency electro-hydraulic drive, a lifting unit mounted on the basis of a self-propelled wheel transport base. The layout is equipped with a platform on which the transport base, match and drilling base are installed.

However, it is practically unrealistic to use the above-mentioned drilling rig, for example, in the ice-water border zone due to insufficient patency of the wheel transport base.

Also known is the design of a mobile self-lifting ice-resistant drilling platform (patent for the invention of the Russian Federation No. 2467122, filed June 29, 2011) of a telescopic type, consisting of a composite bottom ballastable plate with an integrated unit and a top structure. In the case of a drilling rig operating at shallow depths of drilling, the required draft of the slab and / or upper structure is provided by pontoons.

The advantage of this platform is that it allows the drilling equipment to work at various points of well laying without the need to build a stationary platform for servicing drilling equipment at each point of well laying.

In addition, the offshore technological complex is known (application for invention No. 20011134702, declared December 24, 2001), which provides for the placement of at least one interchange platform on a shallow shelf of freezing seas at a point for drilling a wellbore. The platform contains a support block made with a bottom base plate, an outer casing made of ice-resistant, technological tanks, as well as a drilling module.

The disadvantage of the above installations should be recognized that they have large dimensions, high complexity of construction, their high cost and belong to the field of heavy vehicles, which does not allow them to be used in geophysical research methods, in particular, when taking cores, and it is not at all realistic to use conditions of freezing / thawing shallow water.

The closest in technical essence and the achieved result is an amphibian platform for moving, positioning and motionless basing of working tools and mechanisms in the course of work (patent for the invention of the Russian Federation No. 2468932, declared. 19.11.2010), made with the possibility of working at a depth of shallow water, on land and in the land-water transit zone.

The amphibious transporter contains a platform mounted on a self-propelled transport base - caterpillar propulsion systems for ground movement and thruster propeller systems for horizontal movement in deep water.

The propulsion and propulsion-steering complex contains marching tracked propulsion devices that are attached directly to the base of the platform. A device may have several propulsion devices for maneuvering.

The platform is configured to install at least one actuator, in particular, a drilling rig, and contains means for changing the angle of inclination of the platform and further comprises a module for angular positioning of the actuator and its fixation, as well as an energy supply system.

However, this installation has a large weight, is difficult to perform and manage. Its main disadvantages are the use of a combined self-propelled transport base, which does not allow working in the Arctic zone, since the tracked propulsion and thrusting propeller systems are not effective enough when moving on ice floating on water, especially on hummock ice and its almost complete inability to get out water on the wall of ice.

The technical problem solved by the proposed utility model is the possibility of using the drilling platform for work in various conditions of the Arctic zone throughout the year, both in the winter period, when movement on the surface of the ice is possible, and in the summer or transitional period, when the ice melts or installed, that is, ensuring smooth operation throughout the year.

The technical result is achieved by the fact that a mobile drilling rig containing a platform with propulsion devices for moving it during technological operations, on which a drilling rig with means for positioning, fixing and the possibility of bringing it into a transport position, as well as an energy supply unit, is used to move the platform screw propellers operating from a diesel engine or diesel electric system, and the screws of the screw propellers are divided into two sections, each of which x is fixed on a platform rotatable about a horizontal axis, the front section is pivotable by means of hydraulic cylinders at an angle of not less than 40 °.

In FIG. 1 is a schematic illustration of a mobile drilling platform.

FIG. one

The mobile drilling platform comprises a platform 1 with auger propellers 2 for moving it during technological operations, moreover, platform 1 is configured to place a drilling rig 3 on it with means for positioning, fixing and the ability to bring it into a transport position (not shown in Fig. 1 ), as well as the energy supply system. To move the platform, two screw-propelled movers 2 are used, mounted on the sides of the platform, powered by a diesel engine or diesel-electric system, moreover, both screws of the screw-propelled movers are divided into two sections 4, each of which is mounted on the platform with the possibility of rotation relative to the horizontal axis 5, moreover, the front section has the ability to rotate using hydraulic cylinders at an angle of at least 40 °.

The platform is equipped with a shelter of the working space 6, which protects the personnel of the rig from the external environment.

Mobile drilling platform works as follows.

A mobile drilling platform is delivered to the place of work (research) by any suitable transport (ship, helicopter, wheeled-tracked). After unloading the platform, for example, on soil or ice, the power and electrical equipment of the platform is activated, which allows using the auger propellers 2 to position the platform relative to the selected research point. When maneuvering the platform, the auger propellers allow both movement on any even the most rough terrain in any direction (even sideways), and a 360 ° turn.

When unloading the platform into shallow water, the auger propellers also allow movement in any direction (even sideways) and a 360 ° turn. In addition, floating augers provide additional buoyancy platforms on the water. Then carry out fixing (anchoring) of the platform at the bottom.

After positioning and fixing the platform at a given point, the drilling rig 3 is brought into working position and the necessary work is performed. The rig personnel is protected from the external environment by the shelter of the working space 6.

The high cross-country ability of the platform with auger engines ensures that the drilling equipment can operate in a wide variety of well laying conditions without the need to build a stationary platform.

The use of auger propellers helps to reduce the total weight of the platform, simplify the design and reduce manufacturing costs.

The separation of the screws into two sections, each of which is mounted on the platform with the possibility of rotation relative to the horizontal axis, further improves the patency of the platform over a complex terrain. In addition, the possibility of tilting the front section of the auger using hydraulic cylinders at an angle of up to 40 ° ensures that the platform exits onto the ice wall up to 2 meters high (see dimensions in Fig. 1).

The main advantage of the proposed mobile drilling platform based on auger propulsion engines is precisely its extremely high cross-country ability on any natural surface, which leads to an increase in the efficiency of using the platform for engineering, survey, drilling, geodetic, etc. works at any time of the year.

Claims (1)

A mobile drilling platform containing a platform with propulsion devices for moving it during technological operations, on which a drilling rig is located with means for positioning and fixing it on the ground and on the water, with the possibility of bringing the drilling rig into transport position, as well as an energy supply unit, characterized in that for the movement of the platform, screw-propelled propulsors operating from a diesel engine or diesel-electric system are used, moreover, both screws of the screw-propelled mover are divided into two sections and, each of which is mounted on a platform rotatable through an angle of at least ± 10 ° about a horizontal axis by means of hydraulic cylinders, wherein the front section is pivotable at an angle of 40 °.

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