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7600570 |
Drilling rig placed on the sea bed and equipped for drilling of oil and gas wells
A drilling placed on the seabed and arranged for drilling of oil and gas wells is remote controlled from a light drilling vessel ( 2 ) through pipes and signal cables ( 3 ). The main structure of...
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7380614 |
Remotely operated water bottom based drilling system using cable for auxiliary operations
A method for drilling formations below the bottom of a body of water includes disposing a drilling system on the bottom of the body of water. The formations are drilled by rotating a first drill...
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7255180 |
Modular drill system requiring limited field assembly and limited equipment support
A modular transfigurable drilling rig comprises one or more transfigurable containers with drilling equipment to form an operational drilling rig. The transfigurable containers include a first and...
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7055623 |
Method for the drilling of the initial phase of deep water oil wells with an underwater well head
Improved method for the drilling of the initial phase of deep water oil wells with an underwater well head consisting in the positioning and cementation of the conductor pipe and anchorage casing...
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6705411 |
Downhole coring device
The invention relates to a downhole rotary coring device placeable in a drill string and comprising a head section, a motor, and a core barrel having an outer motor comprising a rotor connected to...
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6390206 |
Core sampler
A hydrostatic working device for taking samples from the bottom of the sea. The working device has an outer tube ( 1 ), the cylinder tube ( 1 ), the cylinder tube with lead-through ( 5 and 7 ),...
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6315061 |
Brine-based drilling fluids for ballast tank storage
Drilling fluids are stored in the ballast compartments of drilling vessels to reduce the dependency of a drilling operation on the supply of drilling fluids from work boats. The composition of the...
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6273645 |
Position penetrated anchor system
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5456325 |
Method and apparatus for driving a probe into the earth
A remotely actuated clamping apparatus for obtaining a secure coupling between a vibration unit generating longitudinally directed driving forces and a probe designed for penetrating the earth,...
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5035291 |
Seafloor drilling apparatus
Apparatus for drilling a large diameter hole in the surface of a material includes an upper body; a lower body rotatably connected to the upper body; a motor for rotating the lower body relative to...
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4964473 |
Method for driving a hydraulic submerged tool
Method for driving a hydraulic submerged tool whereby the hydraulic pressure energy is generated in a submerged power converter, being driven by pressurized surrounding water which after the energy...
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4817734 |
Submergible electrohydraulic drive unit for ramming and working devices to be used under water
A submergible electrohydraulic drive unit is a multi-purpose device for driving different underwater ramming and working devices and has a housing with a throughgoing central receiving space for a...
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4813495 |
Method and apparatus for deepwater drilling
A method and apparatus for drilling subsea wells in water depths exceeding 3000 feet (preferably exceeding 4000 feet). Drilling mud returns are taken at the seafloor and pumped to the surface by a...
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4770255 |
Arrangement for underwater drilling of foundations
The invention concerns an arrangement for underwater drilling of foundations, comprising at least one cutter (27) and one pump (29) for discharge of excavated material, and hydraulic motors for...
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4759413 |
Method and apparatus for setting an underwater drilling system
A method and apparatus for setting an underwater conductor pipe in which the conductor pipe is lowered into the wellhole on a drill string as the borehole is being formed by a drill bit and...
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4640552 |
Method and apparatus for splitting ice masses
A method and apparatus is disclosed for breaking apart large masses of ice wherein a borehole is drilled into a mass of ice, the hole is blocked and pressurized to split the ice mass.
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4579484 |
Underwater tapping machine
An underwater tapping machine having a body equipped for attachment to a fitting secured to a pipeline and a rotatable boring bar within the body, a gear case affixed to the body to activate the...
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4502551 |
Deep draft drilling platform
A deep draft oil well drilling platform having a large hollow body is shaped, designed, and ballasted to have a substantial portion thereof submerged under the surface of the ocean a sufficient...
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4255068 |
Method and a device for undersea drilling
The method consists in boring a shaft in the sea floor to form a drilling station of sufficient size to accommodate personnel and equipment, in lining the shaft walls with a casing which is...
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4234046 |
Pressure differential seafloor corer-carrier
A pressure differential seafloor corer-carrier for obtaining long core samples of seafloor sediments. The corer-carrier is composed of two main components: The first component is a pump assembly...
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4215544 |
Method of generating rotary power in a deepsea environment
Method of generating rotary or turbine power within a deepsea environment, for drilling a hole in the seabed and dropping of a mooring pile in the hole so drilled. Rotary turbine power is developed...
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4185694 |
Marine riser system
A marine riser system is provided which extends between a floating offshore platform and well means in a seabed formation and which has riser end portions connected in novel manner to the floating...
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4051685 |
Positioning method and apparatus for submersible pile driving
A pile driving apparatus to be lowered onto the head of a previously submerged pile positioned in a caisson is guided in its descent on cables. The cables are secured to a crossbar attached near...
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4043407 |
Drilling sampling/testing equipment
Equipment for drilling and obtaining samples from, and/or testing at, locations where the soil being investigated is unstable, or where access to the equipment is difficult during drilling, for...
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4033139 |
Pile driving hammer, apparatus and method
What follows is a description of a unique hammer for driving pile members onshore or offshore, an apparatus for driving pile members offshore, and a method of driving a pile member. The hammer...
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3992889 |
Flotation means for subsea well riser
Improvements in flotation means for subsea well riser wherein the riser is run from a floating vessel and includes one or more buoyancy chambers open in the lower portions thereof to the sea and a...
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3970156 |
Water weighted corer
A water-weighted corer comprising a cylindrical tank mounted concentrically n a core barrel intermediate the coring tube and the shackle is provided. The tank has a water inlet at its bottom and an...
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3948058 |
Device for soil sampling under water
The device features its housing carrying the soil sampling ing socket and the striker arranged coaxially to said socket, and adapted to act thereupon and establish some chambers in said housing,...
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3891037 |
Remotely operated seafloor coring and drilling method and system
Method and apparatus for emplacing a structure such as a casing, piling or core barrel into the floor of a body of water, hereafter referred to as sea floor. The structure is mounted on a towable...
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3858401 |
FLOTATION MEANS FOR SUBSEA WELL RISER
Flotation is provided for a subsea well riser conduit. A plurality of open bottom but otherwise airtight buoyancy gas receiving chambers are mounted about the riser conduits. A gas conduit connects...
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3842917 |
PUMPED EVACUATED TUBE WATER HAMMER PILE DRIVER
Driving piles with a liquid ram or spear generated in a pumped, evacuated tube. Various configurations are shown, including those in which the pile itself defines at least a portion of the working...
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3835937 |
DRILLING AND CUTTING SUBMARINE ROCKS
A flame jet produced by the combustion of a kerosene-oxygen mixture in a combustion chamber is projected against an underwater rock thereby to drill or cut the rock by spalling or melting. The...
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3812922 |
DEEP OCEAN MINING, MINERAL HARVESTING AND SALVAGE VEHICLE
A deep ocean mining, mineral harvesting and salvage vehicles including a body integrally formed of a positive buoyancy material and having recesses therein to receive a plurality of variable...
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3794125 |
APPARATUS AND METHOD OF MANEUVER AND SUSTAIN
The attended drilling system comprises a vertical array of objects extending from floor to surface of a body of water. The principal contributing objects of the array considered in the present...
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3786875 |
UNDERWATER ROTATABLE TOOL EQUIPMENT
The equipment includes a hydraulic underwater manipulatable, unitary tool nnected to one end of a flexible conduit and comprising a rigid member having a chamber in communication with the conduit...
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3760889 |
APPARATUS AND METHOD TO MODIFY AND SERVICE A SUBAQUEOUS STRATA DRILLING SYSTEM
A vertical array comprises: a lengthened drill string extending in reach from its buoyant support station initially positioned in vicinity of the water surface, through the body of water and to the...
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3741320 |
SUBSEA DRILLING ASSEMBLY
An off-shore drilling assembly comprises a main body which has sheaves or pulleys so that it can be lowered from a vessel like a block. The main body performs a core drilling operation resting on...
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3738434 |
THE APPARATUS AND METHOD TO ESTABLISH AND SUSTAIN A SUBAQUEOUS STRATA DRILLING SYSTEM
The attended drilling system comprises a vertical array of objects without the conventional conductor pipe extending from floor to surface of a body of water to encase the drill string. The...
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3732143 |
METHOD AND APPARATUS FOR DRILLING OFFSHORE WELLS
A method and apparatus for drilling offshore wells wherein a base unit and conductor string are lowered in the water by a drill string that is coupled to the conductor string, a rotatable shoe...
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3701387 |
CORE SAMPLING APPARATUS
Apparatus for taking a plurality of sequential punch core samples in underwater sediments is provided. Core sampling tubes are driven into the sediments by hydraulic pressure acting through a...
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3700048 |
DRILLING INSTALLATION FOR EXTRACTING PRODUCTS FROM UNDERWATER SEA BEDS
An installation for extracting products from underwater sea beds comprises a base section which is permanently sunk in the sea bed, a reusable well section, and water-tight flexible connecting...
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3695367 |
HYDRAULIC POWER TOOL
A hydraulically driven radial inflow turbine having power takeoff means attached thereto is actuated and controlled by an axially translatable nozzle ring. A manually actuatable trigger mechanism...
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3693730 |
VIBRATORY DEVICE FOR TAKING BOTTOM SEDIMENTS CORES
A vibratory device for taking bottom sediments cores, comprising a string of pipes deepened into the ground by means of a vibrator disposed thereon. In accordance with the present invention it is...
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3667553 |
TELESCOPING SEA FLOOR SOIL SAMPLER
A deep penetrating ocean bottom soil sampler employing a plurality of teloping tubes that may be sequentially driven downwardly to penetrate the ocean floor a distance equal to approximately 1/2 of...
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3667252 |
COUPLING FOR DRILL STRING
This dual engaging coupling connects equal segmental lengths of tubing in repeating sequence to form an integrated drill string that is suspended by a thrust bearing means from an immersed buoyant...
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3666028 |
CORING APPARATUS FOR TAKING SAMPLES OF THE OCEAN FLOOR
An apparatus for extracting a core from the ocean floor which includes a e tube that is held in a "cocked" position, and can be driven into the ocean floor by a set of elastic bands when the...
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3664438 |
UNDERWATER ROCK CORE SAMPLING DEVICE AND METHOD OF USE THEREOF
A rotary diamond rock core drill capable of obtaining a three-quarter inch iameter core four inches long at any depth down to 6,000 feet is provided. The drill is adapted to be used with manned...
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3661204 |
UNDERWATER DRILLING METHODS AND APPARATUS
Broadly, three embodiments are disclosed: a first involving drilling a well from a submersible vessel, a second specifically adapted to drilling a well in shallow water, and a third specifically...
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3646598 |
PILE DRIVER SYSTEMS, APPARATUS AND METHOD FOR DRIVING A PILE
Pile driver systems and apparatus and method for driving a pile are described wherein a hollow pile is driven into the earth with the employment of a massive piston freely movable in the pile bore...
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3642063 |
OFFSHORE DRILLING AND WELL COMPLETION METHOD
A method is provided for drilling and completing hydrocarbon production wells in substantial depths of water. Such method includes a surface vessel and a submarine drilling vessel. After the...
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