Method of development of hydrocarbons /oil and gas/ and underwater drilling rig for implementation of this method in arctic shelf

FIELD: mining.

SUBSTANCE: four independent blocks are preliminary constructed at plant or shipyard and are completed with corresponding to their design equipment by workers and engineers. Further the blocks are transported to a licensed deposit place of arctic shelf by means of ice-breakers and tugboats. In the coastal region erectors-constructors mount two auxiliary blocks, notably: a military-frontier base and medical-hotel centre, while the other two blocks are directed under their own power and are rigged in underwater conditions over the place of drilling. All blocks are connected between them with electric cables and pipelines. According to this method the underwater drilling rig is made in a pressure tight case. On both opposite boards the case is equipped with submarines with hatches and sluices for small underwater mechanisms. Also an auxiliary block is set next to the drilling block by means of anchors. The auxiliary block is similar to the drilling block by design, but inside it is equipped with facilities for preparation of drilling agent and for purifying bore mud; it is also equipped with facilities for cleaning of sewer-pipe drainages of all blocks. All blocks are connected between them with electric cables and pipelines. The underwater blocks are made in form of pressure tight cases rigidly mounted on fore body and stem of each of submarines; the said hatches and sluiced are arranged in them. The disclosed method of development facilitates improved treatment of viscous oil of shelf at mini-oil processing plant located at direct vicinity from the place of extraction, which considerably improves economic performances of deposit development.

EFFECT: upgraded safety and convenience of drilling operations in remote sparsely populated northern latitudes at development of shelf hydrocarbon deposits, considerable simplification of proper development process, reduced labour intensiveness of construction and mounting directly at place of development using existing facilities of ship-building plants for construction of such complexes at their justified updating.

3 cl, 8 dwg


The invention relates to shipbuilding and, in particular, to the complexes commercial development of marine and coastal gas or oil deposits on the Arctic shelf in difficult meteorological conditions.

The present invention aims to improve the safety of drilling operations in remote Northern latitudes during the development of offshore hydrocarbon fields. This invention will greatly simplify the technology and reduce the complexity of construction, development and operation of drilling tools, and to use this to build such systems and facilities existing facilities shipyards when they justified the upgrade.

The invention consists in the fact that in advance at the shipyard or at a shipyard to build four independent blocks, which in the summer after their readiness and capability of the workforce, with the help of an icebreaker and tugs deliver the licensed area of the Deposit for offshore production. Then, in the coastal area of the field installers and builders establish two auxiliary complex unit. Two others, including drill installation and maintenance the installation of the third auxiliary block, divert its course into the sea at a depth of about thirty feet. the use of the anchor system is fixed on the bottom. All blocks are connected to each other by cables and pipelines, and serve with minimodding devices through the auxiliary gateway device and manholes, which are provided to all units of the complex.

From technical literature and patent descriptions known such technical level: for example, "Complex Abramova for commercial development of natural gas fields (see, for example, patent of Russia №2180305). However, this complex is not practically applicable in the conditions of the Arctic shelf due to drifting ice, which will simply blow this rig and will not allow to work productively.

Known and underwater drilling rig, which in underwater environments fitted with a sealed housing (see, for example, patent of Russia №2040637). However, this technical solution focused on increasing pressure by filling the casing pipe connecting the hatch with the sea bottom, a liquid with a specific gravity heavier than sea water at this depth. But in this case not provided for long-term maintenance of the rig, remove sludge and ensuring a normal level of ecological purity of the work.

For a full understanding of the known prior art in this area include the famous "cracker ice" before you drill installation, made in the form with the size platform design, the base which is fixed at the bottom, and the side surface is a curved shape facing the ice reservoir concave hyperboloid rotation made of solid steel (see, for example, U.S. patent No. 4325655). Another version of the "cracker" anchored at a certain depth (see U.S. patent No. 4048943). But these "crackers" are no save. They are in our environment is not healthy. Attempts were made to destroy the advancing ice with vertically rotating cutters (see, for example, U.S. patent No. 3669052). But it is very energy-consuming and inefficient when re-freezing technology.

The essence of the proposed method lies in the fact that to ensure long and safe operation in the conditions of the Arctic shelf, easy relocation with improved quality of works and provision of health staff used the separation of the complex, at least four blocks, each of which are connected to each other via cables, communication cables and pipelines, water supply and wastewater sanitation. Moreover, in the first block placed military base edge, and the second unit - medical-hotel Wellness centre all staff and tourists. The rig and its accessories come in the Vuh other blocks, with the help of the nuclear submarines are mounted at the specified depth of drilling operations.

The invention is illustrated by drawings, where figure 1 conditionally schematically shows the entire complex consists of four blocks (minimum strength). Figure 2 - isometric to the unit 3 or drill installation with pulling in the wrong body. Figure 3 - isometric auxiliary unit No. 2 of the complex, designed in the form of bulk water. funds. Figure 4 shows in isometric suspension unit 2 that joined during transport, the place is located near, but at a distance, because in this part of the installed nuclear power generating installation. Figure 5 shows in isometric auxiliary unit No. 3, in which the equipment installed for supplying drilling fluid to the drill installation and sludge separators from drilling wells and yet, here, installed treatment equipment discharge of sewage waste from all blocks. Figure 6 shows in isometric auxiliary unit No. 1, made in the form of a series of pontoons with the regulated fill sections which are interconnected decks molded lightweight design. Figure 7 presents the ISO with pulling in the housing portion of the unit 1, in which warehouses and hangars with weapons, armored vehicles, barracks for members of Voenno ugashik and ammunition. On Fig presented in isometric diagram of a barge with an independent nuclear power plants and small refinery, from which there is congestion in the delivery means of oil products and liquefied gas.

The proposed construction of unit No. 1 is a factory-made floating structure comprising a sealed pontoons 9, each of which has an adjustable degree of filling, and all the pontoons rigidly connected with a horizontal planar deck truss 10, which are hatches with ramp 11 for lowering and lifting techniques at different levels. Between the sections of the pontoons are hangars and warehouses for weapons and ammunition. The uppermost part of unit 1 fully restored and is used for takeoff and landing, there is a command and control center 12, which is connected with the navigation of the "Great land".

Unit No. 2 is structurally designed in the form of large-tonnage vessels catamaran base type, which is designed for medical and hotel maintenance of the entire property, with fully equipped rooms and rest rooms, canteens and restaurants for service in various categories of the staff and visitors - tourists of the Far North. This unit is equipped with cameras store food and drug administration, BA is the ven and auxiliary equipment, with a fridge and air conditioning.

Figure 4 shows part of unit 2, which serves as a chassis during its transportation to the place of work. This part is equipped with an independent nuclear-power plant 8, therefore, during the operation of this part have at some distance on the shore, to prevent the harmful effects of nuclear energy on the staff, although there is a reliable AZ - nuclear protection. The unit 2 has its own security service and maintain order. Rooftop unit No. 2 there are additional backup runway, which allows everyone in the necessary directions, and to provide air tours. In the lower part of the unit 2 is between catamaran base buildings not freezing pools, which are heated by exhaust steam from the power plant 8. These waters are freely minimumvalue transport vehicles used for communication with other units of the complex.

The third unit is an auxiliary unit which is used for cooking in it mud, and for cleaning sludge from the well. Structurally, the unit 3 represents two of the most powerful modern nuclear submarines 6 are located above the docking hatches with gateways, which are hermetically welded and obake what's racks 13, hold on a housing 14 within which is mounted cleaning equipment 15. In the lower part of each of submarines equipped with 6 small thrusters 16, which allow the unit to carry out very precise maneuvers. In a clearing unit 3 features and treatment equipment for stock sewer waste that here we concentrate, lightened and cleaned. On the racks 13 are provided rope anchor system for a fixation of the whole unit No. 3 at the bottom. It should be mentioned that this unit 3 is connected by cables and pipelines with all the blocks of the complex.

Core unit # 4 - the block on designs similar to unit 3, but has a sealed body 17 mounted on the racks 13 a streamlined shape, and inside them there are hatches and gateways for messages of these boats 6 with the housing 17. Inside the housing 17 mounted rig with 18 service valve 19, which feeds the pipe string to the key and to the rotator. However, in the case of unit 4 has a stock of interchangeable drilling tool, which drillers choose Refine and drilling results. The process goes on well-known technologies. First, this unit 4 accurately set on the casing 7, which is filled with solution, the specific gravity of which is greater than the sea water at the bottom, where there is column 7.

As a variant of this method is, to implement it, the equipment may be supplemented by barge, for example, air cushion maximum displacement and equipped with nuclear-power plants and a small refinery. Note that oil shelf is very viscous and, therefore, of little value, therefore, processing in the immediate vicinity of production will increase the profitability of production.

Working this way is stretched in time and space, namely, pre-build at least four blocks at a shipyard, and all these blocks afloat on the sea and deliver with the help of icebreakers and tugs the licensed area of the Deposit where and have them as two auxiliary block in the coastal zone, and the other two are self-propelled underwater placed close to the first two and connect all the blocks with each other cables and pipelines, using the submarine crew. Due to the fact that each of the blocks delegated certain functions, their crews have already completed and, therefore, on the spot immediately start to perform its duties. The personnel of the unit 1 carries border guard service and ensure the protection of all blocks. The carriage unit 2 is already in transit, prepares food and provides food to the entire complex. At the extraction site they take the watch and provide a medical examination, treatment and rest. Drillers-divers in unit 4 prepare the drilling fluid and ensure its delivery and recycle all waste, avoiding environmentally harmful emissions. In unit 5 start drilling and pre-installed with the use of underwater diving operations column 7, which connect the entire block No. 5, and fixed anchors. Between blocks №№2, 4, 5 ply underwater vehicles, which carry the power supply and the changing shifts staff through gateways, which are available in all blocks.

All nuclear power plants are native work to ensure uninterrupted and reliable supply of all the units of electricity and heat. Drillers-divers in unit 5 are drilling a conventional well-known method, but it is produced in the sealed casing of this unit, which is provided with air conditioning, to create normal working conditions. Watch drillers and masters according to the agreed schedule change each other and go through the gateway camera underwater devices on vacation in unit 2, the same thing happens in block No. 4. The crews of submarines 6 also organize shift duty, using the capabilities of the unit 2. The personnel unit 1 - your day of service, and it is not associated with the drilling process, and is not avicenum, independent, in accordance with military Charter and contract servicemen. Thus, the drilling are continuously shift-rotational mode, watching the drilling instrument with amendments on specific geological conditions, which make drilling. All designed to provide continuous, safe and efficient mode of operation of the drilling unit, as well as cooperation in the work of all units of the complex. As in one body of work all the blocks are interconnected and are aimed at achieving the set goals and specific objectives. Upon reaching the first drilling results, for example, at the opening of the oil-bearing horizon, make the redeployment of units No. 4, 5 to a new drill site, and the uncovered area can be work in the beginning the drilling of a fan of inclined wells. Depending on the situation, if it is summer, then this time can deliver already made a barge with a small refinery, which is further provided with tanks, vaults, pumps and flexes for the transshipment of crude oil in tankers, which in summer can deliver raw materials to the consumer. Simultaneously, drilled well installed in sealed enclosures pumps pumping equipment, which served piping oil in tanks kept the schA. And if you have time until the summer, then the best is to drill inclined hive wells without relocating that will allow you to increase the intensity of development of the field.

The proposed method of development is not a simple organization of work, as it contains a fundamentally new processes and operations, and new links between them, and are defined as interdependent and interrelated in time and space. The method includes pre-production on shipbuilding plant units and equipment with the use of already tested submarines-nuclear-powered submarines. With some modernisation and structural improvement with the addition of underwater vehicles evacuation of the crew.

Each of the blocks of complex delegate or dedicate a specific functional activities for which they are equipped and completed by employees and professional contractors. In this form, is almost ready for operation, the blocks are transported to the place of development of a certain area of the field and immediately upon delivery started working with no downtime. All units of the complex are connected by cables and pipelines, and also used for communication and ensure minimumvalue devices that run between the blocks and make the delivery of groups of workers and specialists appointed by the Oia through the locks and cameras. This combination in both time and space devices and equipment, together with workers and specialists will allow you to avoid wasting time and equipment downtime during the development of the field, and will also exclude PE. The actual drilling process selected from a number of well-known and make it open to any reasonable and proven tools and techniques that are aimed at improving productivity and safety, in particular for the prevention and extinguishing of fires, sudden outbursts and other emergencies.

The method allows use of factory resources and on their basis to ensure quality, and that means trouble-free, production and installation on site maintenance of main and auxiliary works. Device for carrying out work in this way have a number of significant differences, which can be diazaborine, but their options should be directed to the reliable operation of small underwater vehicles that can be expected to help solve the issues of safe emergency evacuation of personnel in case of emergency and everyday work in the interaction blocks the entire complex.

List of sequences of method development fields:

- pre-made at IU the e four blocks at a shipyard;

- delegate this unit functional purpose and, accordingly, they are given the appropriate equipment, materials and personnel;

in summer blocks using icebreaker and tugs ferried assembled to the licensed area of the field;

in the coastal area fitters builders establish two auxiliary unit, namely: military-edge base and medico-hotel complex with its chassis;

blocks connected to each other by cables and pipelines;

simultaneously with this, the drilling rig and its auxiliary unit on their own move and mount under the water above the well drilling;

- connect all the blocks together by cables and pipelines;

- include energy and begin the drilling of a well known manner and conduct the drilling shift-shifts, organizing work shifts;

- after opening the oil-bearing or gas-bearing horizon make the relocation on their own rig with its supporting block to a new location drilling;

over the drilled bore in a sealed enclosure install the pump - rocker, which is connected with the storage of the extracted minerals;

- (optionally) produce delivery and installation in the coastal zone collected at the plant barge with additional atomenergetik stations and mini refinery plant equipped with tanks, vaults.

At the opening of the well field gas or oil, the gas will get through the pipeline in additional adjacent block No. 3.

Additional unit 3 is equipped with condensers, refrigerators and compressors for liquefied gas produced and send it in a liquid state in the Assembly and transport capacity, in which he will be transported to the consumer.

For long-term accumulation of liquefied gas from the outside of the additional unit 3 temporarily install a series of Assembly and transport containers, which are connected as they are filled prey to siriusmo equipment.

Assembly and transport capacity are adapted for single or group transportation and delivery to consumers of liquefied natural gas.

1. The way of the development of hydrocarbon deposits (oil and gas) in the Arctic shelf, which advance at a shipyard made at least four unit complex and delegate to each of the functional blocks the activity to which they and intend, as well as complement workers and specialists, then in the summer time with icebreaker assistance and tugs ferried assembled all blocks licensed to mine, where in the coastal area mantain the key and builders establish two auxiliary unit, namely military base edge and medical complex, and at this time the drilling rig and its subsidiary block its course guide and mounted under water at depth by divers and equipment connected to each other by cables and pipelines all the blocks and drilling complex.

2. Underwater drilling rig for implementing the method according to claim 1, characterized in that it is made in a sealed housing, which is provided with two rigidly mounted on opposite sides of submarines equipped with hatches and gateways, receiving, and production of small underwater vehicles, and next at the bottom anchors install the auxiliary unit, which structurally is similar, but is not inside a drilling rig and auxiliary equipment for the preparation of the drilling fluid and means for cleaning drill cuttings and cleaning device for cleaning of sewage coming from all blocks.

3. Underwater drilling rig according to claim 2, characterized in that its subsidiary unit with submarines equipped with streamlined sealed enclosures, which are rigidly mounted on the stern and at the bow of each of the submarines, and these uprights are rigidly reinforced hull of these blocks, and inside racks mounted above doors and gateways for small underwater vehicles, and under each of the three submarines for more precise maneuvering and counter-mounted transversely to the longitudinal axis of the additional propulsion - screws with self drive each.


Same patents:

Dredge // 2380540

FIELD: mining.

SUBSTANCE: dredge consists of pontoon, working element, loading chute, dredging barrel, concentrating equipment, unloading chute, pebble stacker and eofel stacks. Also pebble stacker is installed on the pontoon and is designed to rotate in horizontal plane, while tail parts of eofel stacks are designed to rotate in horizontal plane.

EFFECT: increased efficiency of placer development with dredges and reduced losses of mineral in inter-pass massifs.

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FIELD: mining.

SUBSTANCE: group of inventions is related to underground production of minerals, and may be used in mining industry. Method for selective sampling and preliminary concentration of ferromanganese burrs includes displacement of getting device to the bottom, capturing burrs at the bottom, their transportation with the help of drum to zone of unloading and supply to hopper. Besides underpressure zone is created at drum shell, where ferromanganese burrs are captured, retained and transported to the area of underpressure zone ending, with further unloading to hopper under their gravity force. Device for method realisation comprises above-water floating facility, transporting element, bottom getting device in the form of drum. Getting device is arranged with longitudinal grooves at external surface of drum, having through holes at the ends of grooves. Shell with through cone-shaped holes evenly arranged along their whole surface and oriented with their base outwards is installed on drum. Holes are proportionate to captured concentrate. Drum is installed on side disks displaced relative to end to its centre, and is fixed on support table. Immobile header is rigidly connected to support table, and the header has shape of sector equal to 3/4 of circumference and is oriented symmetrically relative to horizontal axis in direction opposite to motion. Header is installed inside drum, between its end and side disk, and in zone of contact with surface of drum, there is an elastic low-friction coating on header. Support table is installed on vertical hydraulic cylinders mounted on skis. On skis there is also a hopper arranged in the form of truncated cone and electric motor in oil bath with pump connected to header by means of nozzle network.

EFFECT: elimination of direct dependence of efficiency on width of buckets, elimination of dead rock lift, production of nonmagnetic minerals, improvement environmental condition in zone of ferromanganese burrs deposits development.

2 cl, 6 dwg

FIELD: mining.

SUBSTANCE: submerged extractive instrument includes bottom mining aggregate, containing taking-out modules, installed by means of force-summing element - frames on durable suction flue, fixed on submerged bearing, and bottom bearing-chair. Taking-out modules are installed on bottom ends of force frames, installed movable around and lengthways durable vertical suction flue, fixed on submerged hydraulic mounting with regulated positive and negative flotation ability. Frames and taking-out modules are connected to drives with ability of movement and turn in vertical plane and stepping turn around vertical suction flue, and also regulated movement and turn of taking-out modules relative to frames. Bottom bearing-chair consists of vertical suction flue with fixed on its bottom end reference element. Operation method of extractive instrument is in development with loosening and raking of solid mass of minerals by means of movement of taking-out modules by developed surface with turn under angle of slope to it. Development is implemented on protected by screen circular surface area. Movements of taking-out modules is implemented in radial directions from suction flue to periphery - at loosening and in opposite direction - at raking into latticed container with simultaneous crushing of solid particles against webbing of its lattice, and with periodic stepping turn of them around suction flue.

EFFECT: increase of effectiveness, reliability and environmental safety of production works implementation.

15 cl, 24 dwg

FIELD: construction.

SUBSTANCE: invention is intended for bottom sediment (silt) removal from water pools and for underwater development of mineral resources (sapropel) and bulk materials (sand, gravel, gold placers). Aggregate for bottom sediment removal from pools and underwater development of mineral resources includes bottom sediment conveying device mounted on floating medium and consisting of cylinder linked to pipe string, hollow piston installed inside the cylinder, linked to bar string and featuring channel with funnel-shaped section widening towards intake end and closed by shutoff valve. The floating medium carries conveyor device drive maintaining reciprocal movement of bar string. Aggregate is equipped with V-shaped cutter attached to aggregate opposite of aggregate course direction and serving for cutting mineral deposit layer and concentrating it at intake area. Filter with brushes and rods is attached to the cylinder to prevent large particles from penetrating under valve.

EFFECT: enhanced friability of caked mineral deposits, extended functional capacity and producing efficiency of aggregate.

2 dwg

FIELD: mining.

SUBSTANCE: invention refers to hydraulic mechanisation and can be implemented at development of placers of minerals of high density in underwater working faces. The scraper-suction screen of the dredger consists of a pipeline and of a suction head with the screen. The screen contains a rigid disk with radial slits and a central impermeable circle. Each radial slit is connected to the suction head with a leak proof channel of alternate shape in cross section, also total area of radial slits does not exceed area of cross section of the suction head. The suction head is equipped with a rotation drive. Scraper blades with cutting edge and stiffening ribs set off relative to axes of radial slits at angle of 20-25° are assembled on the rigid disk below between radial slits.

EFFECT: increased efficiency of development of placer sands and reduced losses of valuable components of high density.

3 dwg

FIELD: mining.

SUBSTANCE: invention refers to hydro-mechanised complexes for extracting concretions from sea bottom. The complex for extraction of concretions consists of a base vessel, of a pulp pump with suction and outlet branches, of a pressure pipeline connected with the outlet and suction branches by means of flanges, and of a perforated branch with dimension of holes equal to a minimal size of extracted concretions. Also the pressure pipeline is directed vertically, while its above water part is pivotally secured on the end of a derricking jib of a swing crane by means of a sleeve; the swing crane is arranged on the base vessel and is designed to lift and lower the pressure pipeline and also to transfer it in horizontal plane. The upper part of the pipe line is connected to a concretion receiving capacity by means of a flexible hose. Four pontoons of a cylinder shape are arranged on the middle part of the pipeline symmetrically relative to its lengthwise axis and along it; the pontoons are designed to be filled with water and to be blown off with compressed air. Also the pontoons are arranged on the pipeline between the flanges secured on the latter; the pontoons are connected between them and pressed to the pipeline by means of flexible bands. Cantilever swinging framework kinematically tied to its swing drive is assembled on the lower section of the pipeline; this framework is designed to rotate relative to the pipeline in horizontal plane. Two blades symmetrically located relative to the suction branch are secured to the framework from below; the blades rest on the water area bottom, grab concretions and transfer concretions to the suction branch. Notably, each of blades is made with a horizontal lower edge in cross section; an inclined part of the blade adjoins the lower edge and forms an acute angle, the vertex of which is directed to the side of blade motion; an upper horizontal edge adjoins the inclined part and is connected to it with a curvilinear section. Value of acute angle is accepted less, than the angle of friction in pair of concretion with host rock that is internal surface of the lower edge and the inclined part. In plane view each blade is profiled along logarithmic spiral with a pole coinciding with the axis of the suction branch; the external relative to the suction branch edge of the blade and its lower edge are bent to the direction of framework swing, while the blade adjoins the suction branch with a minimal circular gap in plane view. The suction branch is made in form of a truncated cone expanding downward. The concretion receiving capacity is made in form of an inclined sieve grate, wherefrom dehydrated concretions are reloaded into movable containers; a sump is assembled under the sieve grate.

EFFECT: decreased cost and simplification of design and facilitating part load mode of concretions extraction.

4 cl, 5 dwg

FIELD: transportation; pipeline.

SUBSTANCE: device for production of burrs includes basic vessel, sludge pump with suction and discharge nozzles, discharge pipeline, which is connected by flanges with outlet nozzle and discharge pipeline. At that sizes of perforated nozzle openings are accepted as equal to minimum size of produced burrs. Discharge pipeline is oriented vertically. Above-part of pipeline with the help of cartridge is hingedly fixed at the end of derricking rib of rotary crane installed on basic vessel, with the possibility of discharge pipeline lifting and lowering, and also its displacement in horizontal plane. Upper part of pipeline is connected by flexible hose to receiving facility for burrs. On lower part of pipeline cantilever rotary truss is installed in horizontal plane with the possibility of rotation relative to it. Truss is kinematically connected to drive of its rotation. On lower parts of truss, which are symmetrically oriented relative to pipeline, two channels of cylindrical shape cross section are fixed parallel to each other. Horizontally oriented augers equipped with drives of their rotation are installed in channels in bearings. Augers are installed so that they may grasp burrs from water area bottom and shift burrs to suction nozzle of discharge pipeline. Every groove covers auger on top with clearance, on one side on arc of 180 degrees, and on the other side - at 90 degrees. At that larger arc is installed from the side that is opposite to direction of truss rotation. Longitudinal axes of augers in plan are installed on both sides from pipeline axis at the same distance from it on truss parts that are opposite relative to pipeline. Channels of augers are connected to suction nozzle, which is arranged in the form of truncated cone that widens down. Every channel from the side opposite to direction of truss rotation is arranged with slot cuts arranged one behind another along channel length with their lift with bend upwards to the side of suction nozzle and channel overlapping along height equal to auger diametre. Width of slot cuts is accepted as less than minimum size of burrs commercial grain. At that length of every slot cut measured along channel length is accepted as more than step of auger vanes helical surface. Receiving facility for burrs is arranged in the form of inclined fire grate with the possibility to load dehydrated burrs from it into movable containers. Sump is installed under fire grate.

EFFECT: simplification and cheapening of device design and provision of partial load mode for burrs.

4 cl, 4 dwg

FIELD: production processes.

SUBSTANCE: proposed complex relates to hydromechanical complexes designed to extract concretions from sea floor. The proposed complex comprises station ship, pulp pump with inlet and outlet branch pipes, pressure pipeline flange-joined with outlet branch pipe and perforated branch pipe. Note here that the perforated branch pipe holes are taken to equal the minimum sizes of extracted concretions. The pressure pipeline is arranged vertically. The pipeline surface part is hinged to the end of the rotary crane lifting jib to up and down the said pipeline and to move it horizontally. The pipeline top part is connected, via a flexible hose, with concretion receiving device. There are four cylindrical pontoons located at the pipeline medium part symmetrically to its lengthwise axis that can be filled with water and air flushed. Note here that these pontoons are arranged on the pipeline between its flanges and pressed thereto with the help of flexible retainer rings. A cantilever rotary frame is arranged on the pipeline lower part to rotate about it in horizontal plane, articulated to its drive. Two vertical cross section blades are attached, from below, to the frame in symmetry with suction branch pipe to rest of sea surface floor, to grip concretions and move to the suction branch pipe. Every blade profile represents a logarithmic spiral with its pole aligned with the suction branch pipe axis. Note that the blade outer, relative to suction branch pipe, and inner edges are bent out towards the frame rotational direction. The blade adjoins the suction branch pipe with a minimum circular gap. The suction branch pipe represents a tapered cone widening downward. The concretion receiving device represents an inclined feed grate designed to receive dehydrated concretions to be placed into containers. There is a sump located under the said feed grate.

EFFECT: simpler and chipper design, atraumatic extraction.

4 cl, 5 dwg

FIELD: mining.

SUBSTANCE: installation for extraction of concretion consists of base vessel, of sludge pump with suction and outlet branches, and of pressure pipeline connected by means of flange with outlet branch. Also sizes of openings of a perforated branch are accepted as equal to minimal size of extracted concretions. The pressure pipeline is directed vertically. By means of a cartridge the above water part of the pipeline is hinged on the end of the lifting jib of the swing crane assembled on the base vessel; the pressure pipeline is intended to be lifted, lowered and displaced in horizontal plane. The upper part of the pipeline is connected with a concretion receiving facility by means of a flexible hose. A cantilever swivel framework is arranged on the lower part of the pipeline and is designed to rotate relative to the pipeline in horizontal plane. Kinematically the framework is connected with the drive of its rotation. Vertically oriented in cross section and symmetrically arranged relative to the suction branch two blades are secured to the framework from below; the blades are designed to rest on the bottom of water area, to grip concretions and to transfer them to the suction branch. Each of blades is profiled in plane along logarithmic spiral with pole coinciding with the axis of the suction branch. Also an external relative to the suction branch edge of the blade and its lower edge are bent to the side of the framework rotation. The blade adjoins the suction branch with a minimal gap in plane. Parametres of logarithmic spiral defining profile of each blade are chosen from ratio: φ-1 ln(ρ a-1)<f, where φ - is instantaneous angular coordinate, rad, ρ - is instantaneous radius, m, a -scale factor equal to ratio of linear and angular rates at logarithmic spiral profile plotting, m, f - is coefficient of sliding friction of concretion with host rock along internal surface of the blade. The suction branch is made in form of a truncated cone expanding downward. The concretion receiving facility is made in form of an inclined grid iron where from free from water concretions are reloaded to movable containers, while under the grid iron there is located a sump.

EFFECT: simplification and reduction in cost of structure of complex and facilitation of partial load mode of concretions extraction.

5 cl, 4 dwg

FIELD: mining.

SUBSTANCE: complex for extracting concretions from sea bottom consists of base and auxiliary floating vessels kinematically connected by means of flexible elements. A doubled driven block is installed on the swivel platform of the base floating vessel, while a doubled deflecting block is installed on the auxiliary floating vessel; the driven and deflecting blocks interact with two flexible elements. Between them on the flexible elements perforated containers are arranged; the containers have rectangular cross section with cutting edges from the side of a receiving opening. The concretion receiving opening is located on the base floating vessel. The flexible elements are made in form of closed in vertical plane laminated links. The containers are arranged on the links equally spaced along their length. The deflecting blocks on the auxiliary floating vessel are driven and, similar to the base floating vessel, are installed on the platform swiveling in horizontal plane. Containers on the laminar links are secured by means of hinges. Also on sea bottom the axis of the hinge of each container is set off relative to the center of container weight into the side of its receiving opening in horizontal plane and to the side of the upper edge of the container in vertical plane. Additionally, lower strand of links is intended to rest on the sea bottom. A guiding bar incurved upward is located under strands of the flexible elements running down from the doubled driven block; containers after their descending off the driven block interact with the guiding bar. A concretion receiving facility is made in form of inclined perforated chute placed between tight and slack strands of flexible elements moving around the driven block. Nozzles, supplying clean water under pressure into the chute, are arranged over the chute, while under the chute and with a gap there is installed a trough for withdrawing water with slime particles.

EFFECT: raised efficiency at increased depth of concretions bedding.

3 cl, 4 dwg

FIELD: mining industry.

SUBSTANCE: device has bottom power assembly, connected to base watercraft by force pipeline with conical perforated portion, adjacent to bottom power assembly, conical perforated portion of force pipeline is made of sheet of elastic material and provided with rigid branch pipes with flanges on both ends. Flanges of branch pipes are interconnected by round-link chains placed along flanges perimeter, which are connected to flanges of power assembly and force pipeline branch pipe.

EFFECT: simplified construction, lower costs, higher efficiency.

4 cl, 4 dwg

FIELD: mining industry.

SUBSTANCE: mining combine has extraction means, on which a body is mounted, having at least one first liquid outlet, for supplying liquid to material. Pipeline, through which liquid is fed to first liquid outlet, contains means for measuring flow and/or pressure of liquid in pipeline, for determining, in which of to layers outlet is positioned. Combine can have at least one second liquid outlet, placed in such a way, that first liquid outlet is in lower layer, and second liquid outlet is placed in upper layer. First liquid outlet can have one of multiple first liquid outlets spaced from each other, and second liquid outlet - one of multiple spaced from each other second liquid outlets. Efficiency of liquid flow through multiple spaced first outlets can surpass those of multiple spaced from each other second liquid outlets. Placement of second liquid outlet in separate body cover is possible. First and second liquid outlets can be directed downwardly relatively to direction of mining combine displacement. Method for controlling depth of position of mining combine extraction means includes placing two liquid outlets, interacting with material extraction means, in a material, while second liquid outlet is placed above first liquid outlet, liquid is fed to first and second liquid outlets and flow and/or pressure of liquid is measured. Layer, wherein liquid outlet lies, is detected, and first liquid outlet is placed in lower layer and second liquid outlet is placed in upper layer, to determine depth of position of extraction means relatively to two layers.

EFFECT: higher precision.

2 cl, 9 dwg

FIELD: means for organic and chemical fertilizers obtaining, particularly to extract sapropel silt from lake and lagoon bottom and for water ponds cleaning.

SUBSTANCE: device comprises water-craft with executive tool and with extraction tool of suction type, transportation mechanism and optional equipment. Executive tool comprises turbofan, bell-shaped case with serrated lower edge and at least two pipelines mounted in the case and used for feeding compressed air and driving extraction tool. Optional equipment includes hoisting means and seriously connected accumulator vessel, bin, sump, evaporator, disperser, pelletizer, drying chamber, metering device and transportation mechanism.

EFFECT: reduced sapropel mass losses, reduced time of sapropel preparation to use.

13 dwg

FIELD: technologies for extracting concretions from sea bottom.

SUBSTANCE: complex has watercraft, extracting machine with take-in device and pulp-pump, supporting pipeline, perforated branch pipe with sizes of apertures less than minimal size of extracted concretions. Perforated branch pipe is positioned at portion of force pipeline adjacent to extracting machine, and is provided with flanges. Apertures of perforated branch pipe are made in form of multi-drive slit channels along whole length of perforated branch pipe, provided with bandages. Slit channels can be made in form of constant width and directed along generatrix lines of perforated branch pipe, and bandages are positioned in direction perpendicular relatively to perorated branch pipe. Slit channels can be made in form of portions serially positioned behind one another and expanding towards movement of hydraulic mixture. Slit channels can be made of spiral shape, an bandages - in form of longitudinal rods.

EFFECT: higher efficiency.

4 cl, 4 dwg

FIELD: technologies for extracting concretions from sea bottom.

SUBSTANCE: device has watercraft, extracting device with collecting means and pulp-pump, force pipeline, perforated branch pipe with sizes of opening less than minimal size of extracted concretions. Perforated branch pipe is positioned in portion of force pipeline adjacent to extracting device and is provided with flanges, and diameter of perforated branch pipe decreases away from extracting machine. Extracting machine is provided with additional pump with latch, mounted in parallel with pulp-pump of extracting machine, and between perforated branch pipe and force pipeline check valve is positioned.

EFFECT: higher efficiency.

2 dwg

FIELD: mining industry, particularly for obtaining minerals from underwater.

SUBSTANCE: plant comprises frame carried by catamaran, drum reels secured to frame at different levels and provided with driving means. Arranged in lower frame base is vessel having chute in which auger is installed. The auger is provided with drive. Frame drums are connected to truck through endless chains to which buckets are hinged. Load cavities of the buckets have orifice arranged from end side thereof and adapted to remove water when buckets move over water surface. Lower bases of the buckets are connected with chains through flexible rods and maintain vertical positions of loads arranged on chains when chain inclination varies. Plant also has compressor connected to float chambers of the buckets by flexible armored tube secured to electric winch rope and by spring. Electric winch is linked with microswitches by electric circuit. Microswitches are adapted to automatically bring electric winch into electric circuit during bucket movement. Catamaran is connected to truck platform through ropes of the winch connected to ship and adapted to lower or lift the truck from ocean bottom. Electric drives of the winches are linked with switch buttons of control panel, which provides remote winch control. Installed in catamaran body are devices to separate concretion mass into fraction and to dehydrate thereof. The devices are made as rotary netted drums with different orifice diameters. The drums are coaxial and spaced apart one from another. Each drum is provided with receiving chamber, drive and fraction outlet. Each fraction outlet is connected to centrifugal means having drive. In accordance to the second embodiment plant has case including three or more frames arranged in staggered order in two rows and centrifugal means. The plant is made as trailed unit and may be unitized with ship. The case is provided with floating pontoon supports. Each pontoon support is connected to compressor and has electromagnetic valve so that the support may immerse the case at proper depth in stormy conditions and emerge thereof after storm termination. Two longitudinal vessels provided with chutes are connected to each frame. Installed in chutes are augers with drives. Shafts with drum reels and drives are secured from both vessel sides at different levels thereof. The drums are provided with endless chains to which buckets are hinged. In accordance with the third embodiment the plant comprises case having three or more frames. The frames are arranged in one or two rows and connected one to another. One longitudinal vessel in secured to each frame. The vessel is provided with chute in which auger with drive is installed. The plant also has case installed on truck, which is mounted on ocean bottom. Conveying wedge-like mechanism is fixedly secured in front of conveyers under truck platform. The wedge-like mechanism is movably installed between drum reels to shift concretion layer from two sides towards bunker bucket loading means.

EFFECT: increased capacity, reliability and durability, improved technical means, workmanship and extended technological capabilities.

3 cl, 16 dwg

FIELD: obtaining minerals from underwater, particularly hydro-mechanized devices for concretion production from seabed.

SUBSTANCE: device comprises movable seabed unit with pulp pump and outlet pipe, pressure pipeline with perforated part, basic ship and connection flanges. The perforated part is formed of parallel pipes connected with outlet pipe of the pulp pump and with pressure pipeline by distribution pipes. Number of pipes and pipe diameter are determined from where D1 is diameter of outlet pulp pump pipe, D2 and n - diameter and number of pipes composing perforated part of pressure pipeline.

EFFECT: increased productivity.

5 dwg

FIELD: rock mining, particularly to develop gravel-sand deposits.

SUBSTANCE: rid comprises body made as U-shaped pontoon and having docking mechanism, which provides connection of similar pontoon sections to maintain floatability thereof in the case of suction head weight increasing. The rig also has suction head made as downhole hydraulic mining tool and having ground receiving means and portal crane for ground receiver lifting and lowering arranged in front pontoon part. The ground receiver is lifted and lowered by suction head rotation about axle arranged in central pontoon part. The rig also has sludge line connected to suction head.

EFFECT: possibility of mining work performing at variable development depth.

4 dwg

FIELD: mining, particularly to produce ore and rock materials, for instance building materials.

SUBSTANCE: mining rig comprises pontoon with suction head having sludge receiving means, as well as crane for sludge receiving means lifting and lowering installed in front pontoon part. Sludge receiving means is lifted and lowered by suction head rotation about axle connected to pontoon. Rig comprises sludge line connected to sludge channel of suction head. The pontoon has U-shaped cross-section and is provided with additional crane arranged in rear part thereof. The suction head is made as downhole hydraulic tool having string composed of two parts in length direction. The parts are pivotally connected one to another. The string is arranged on pontoon so that the parts may be lowered in series. The cranes are portal. The axle is located in rear or front pontoon part.

EFFECT: possibility of mining work performing at variable development depth.

2 dwg

FIELD: methods to develop underwater and flooded ferromanganesian concretion and phosphate shelf concretion deposits, as well as similar flooded and marine deposits mainly including horizontal and flat thin seams located on bed surface.

SUBSTANCE: draghead comprises frame body with upper, lower, side and rear walls, suction pipe of suction dredge, blades secured to intermediate bottom, which may rotate in vertical plane. The draghead is also provided with hydraulic abrasing unit having pressure pipe transversal to upper frame body wall. The pressure pipe is provided with hydraulic heads. The draghead comprises ball-and-socket hinge arranged in upper frame body orifice. Upper horizontal edge of rounded side wall is connected to inner surface of upper wall. Side wall flat part height and rounded part height thereof are related as 1:0.5. Ball-and-socket hinge and rounded part of side frame body have curvature radii in plane view equal to active suction dredge suction radius. Intermediate bottom is installed inside rounded side wall of frame body and may rotate with the use of two hydraulic cylinders about horizontal pin secured to rounded part of side frame body wall.

EFFECT: simplified structure and reduced losses in sludge lines.

7 dwg