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7380614 |
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 rod having a first core barrel latched the...
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7255180 |
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 second load bearing support and a load b...
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7055623 |
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 by means of a single drilling phase. A ta...
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6705411 |
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 the outer barrel and a stator to the hea...
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6390206 |
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 ), and an inner tube ( 2 ), the sampling tub...
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6374924 |
A downhole drilling apparatus for interconnection in a casing or liner string having a drill bit disposed thereon for enabling the drilling of intersecting wellbores without removal of the drill bit is disclosed. In a disclosed embodimen...
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6315061 |
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 brine-based drilling fluid stored in the...
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6273645 |
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5456325 |
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, such as into underwater sediments at water ...
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5035291 |
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 the upper body; cutting discs, connecte...
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4964473 |
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 transfer is exhausted into the surround...
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4817734 |
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 ramming pile or a respective ramming or ...
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4813495 |
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 centrifugal pump that is powered by a se...
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4770255 |
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 driving the said cutter and the said pump. ...
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4759413 |
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 underreamer positioned at the end of the drill ...
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4640552 |
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 |
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 boring bar, a containment vessel supported...
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4502551 |
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 distance to be substantially unaffected by ...
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4255068 |
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 cemented against the walls and surmounted by a ...
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4234046 |
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 that pumps seawater and sediment as to cre...
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4215544 |
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 by admitting water through a submerged ...
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4185694 |
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 platform and to wellhead structure at th...
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4051685 |
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 the head of the pile. The crossbar must be...
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4043407 |
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 example underwater. Samples can be obtained...
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4033139 |
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 includes a displaceable ram structure which ...
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3992889 |
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 gas injection line runs from the vessel ...
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3970156 |
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 air vent at its top so that during desc...
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3948058 |
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, which are alternatively communicated, thro...
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3891037 |
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 and submersible vessel which includes a n...
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3858401 |
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 each chamber with a source of compresse...
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3842917 |
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 chamber for generating water hammer, and...
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3835937 |
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 flame jet is projected at a pressure of at l...
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3812922 |
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 buoyancy tanks. Eduction and coring mining sys...
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3794125 |
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 application comprises: a drilling station th...
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3786875 |
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 and with a fluid actuated member rotatabl...
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3760889 |
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 lowest penetration of the floor strata ...
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3741320 |
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 the seabed. A traveller body can be pulle...
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3738434 |
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 principal contributing objects of the array con...
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3732143 |
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 including cutting means being mounted on the...
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3701387 |
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 central guide tube. The core sampling tube is...
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3700048 |
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 means releasably connecting together the bas...
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3695367 |
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 admits a small amount of control fluid wh...
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3693730 |
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 provided with an arrangement connected wi...
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3667553 |
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 the cumulative length of the tubes. As ...
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3667252 |
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 pontoon controlled to regulate the beari...
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3666028 |
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 restraining cord is cut. An extracting collar,...
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3664438 |
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 deep submersibles and is operated by the su...
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3661204 |
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 adapted to drilling a well in deep water. ...
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3646598 |
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 and normally resting on the pile. An air...
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RE27292 |
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