OMPI – Búsqueda en las colecciones de patentes nacionales e internacionales

1.WO/1999/022983ROV INSTALLED SUCTION PILES

WO - 14.05.1999

Clasificación Internacional B63B 21/22 Nº de solicitud PCT/EP1998/007012 Solicitante SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. Inventor/a VON EBERSTEIN, William, Henry

A suction pile anchor system for anchoring offshore structures to the seabed is provided. The system includes a suction pile (10) having an upper end part provided with a pump valve for water to flow between the interior of the suction pile and the exterior thereof, and an ROV provided with pumping means connectable to the pump valve of the suction pile (10) and operable so as to induce water to flow between the interior of the suction pile and the exterior thereof.

2.WO/1999/011831CARBON CATALYZED LEACHING OF METAL-CONTAINING ORES IN FERRIC SULPHATE OR SULPHURIC ACID SOLUTION

WO - 11.03.1999

Clasificación Internacional C22B 3/08 Nº de solicitud PCT/US1998/018554 Solicitante MBX SYSTEMS, INC. Inventor/a SHARP, James, E.

Disclosed and claimed is an efficient process for extraction of metals from ores using carbon catalyzed leaching. Specifically exemplified is the extraction of cobalt and nickel from laterite ore by hot leaching in the presence of ferric subsulfate or of sulfuric acid used in a low concentration.

3.WO/1999/006603SELECTIVE PRECIPITATION OF NICKEL AND COBALT

WO - 11.02.1999

Clasificación Internacional C22B 3/06 Nº de solicitud PCT/AU1998/000583 Solicitante CENTAUR NICKEL PTY LIMITED Inventor/a WHITE, David, Thomas

A method for precipitating nickel and cobalt from an acid aqueous solution containing at least dissolved nickel, cobalt and manganese, the method including: adding solid caustic calcined magnesium oxide or freshly slurried caustic calcined magnesium oxide to the solution, the magnesium oxide being added in an amount sufficient to precipitate a substantial proportion of the nickel and cobalt in solution and to precipitate a minor proportion of the manganese in solution; maintaining the magnesium oxide in contact with the solution for a period of about 1 hour to about 9 hours to thereby achieve precipitation of a substantial proportion of the nickel and cobalt in solution and precipitation of a minor proportion of the manganese in solution; and separating solids precipitated in step (b) above from the aqueous solution. Preferably, about 80% to 100% of the Ni and Co in solution is precipitated and about 5% to 15% of the Mn in solution is precipitated. The precipitated material separates early from the solution. The precipitate contains low levels of Mn and Mg and can be further treated to recover nickel and cobalt.

4.WO/2001/019669SMOOTH SLEEVES FOR DRAG AND VIV REDUCTION OF CYLINDRICAL STRUCTURES

WO - 22.03.2001

Clasificación Internacional B63B 21/50 Nº de solicitud PCT/EP2000/009186 Solicitante SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. Inventor/a ALLEN, Donald, Wayne

An element of substantially cylindrical shape (10) and having a longitudinal axis, the element being arranged in a body of water flowing relative to the element in a direction having a component transverse to the longitudinal axis, wherein said element has an outer surface (12) having a ratio K/D of less than 1.0 x 10^-4 where: K is the average peak to trough distance of the roughness of said outer surface; D is the effective outside diameter of said element.

5.WO/1999/047784SUPPORTING FRAME FOR RISERS

WO - 23.09.1999

Clasificación Internacional E21B 17/01 Nº de solicitud PCT/EP1999/001629 Solicitante SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. Inventor/a DORGANT, Paul, Louis

An offshore platform comprising a jacket structure supporting a platform deck having a wellbay, the jacket structure having a plurality of legs and a bracing assembly, at least one flowline extending from a remote well to a lower part of the jacket structure and from there in upward direction to the wellbay, wherein each flowline extends through a passage formed within the jacket structure and aligned with the wellbay, whereby the flowline is supported by the bracing assembly.

6.WO/1999/015758SUBSEA DRILL FLUID PUMPING AND TREATMENT SYSTEM FOR DEEPWATER DRILLING

WO - 01.04.1999

Clasificación Internacional E21B 21/00 Nº de solicitud PCT/EP1998/006181 Solicitante SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. Inventor/a GONZALEZ, Romulo

A method is disclosed for offshore drilling in which a bit (44) is driven at a far end of a drill string (34), drilling fluid (32) is injected into the drill string from surface drilling facilities, and drilling fluid flushes the borehole (16) at the bit and entrains drill cuttings (76). The drilling fluid is drawn off near the mudline and is treated through a subsea processing system (22) to remove the cuttings from the drilling fluid. The treated drilling fluid is then returned to the surface with a subsea return pump system (26) and passed to surface drilling facilities for injection and recirculation.

7.WO/2001/040626FLOW IDENTIFICATION SYSTEM

WO - 07.06.2001

Clasificación Internacional E21B 47/10 Nº de solicitud PCT/EP2000/012000 Solicitante SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. Inventor/a HEIJNEN, Wilhelmus, Hubertus, Paulus, Maria

A system for determining a characteristic of a stream of gas flowing through a branch wellbore of a multilateral wellbore system including a main wellbore extending from surface into the earth formation and a plurality of branch wellbores, each branch wellbore being provided with a conduit for passage of a stream of hydrocarbon gas from the earth formation to the main wellbore, the system comprising a plurality of sound generating devices, each sound generating device being arranged in a corresponding one of said conduits and being operable to produce a sound wave of selected frequency upon flow of the stream of gas along the sound generating device, the frequencies of the sound waves produced by the different sound generating devices being mutually different, the system further comprising a sound receiver capable of receiving each sound wave of selected frequency.

8.WO/1999/022086ASSEMBLY ELEMENT

WO - 06.05.1999

Clasificación Internacional E04B 1/61 Nº de solicitud PCT/EP1998/006754 Solicitante KVAERNER PANEL SYSTEMS GMBH MASCHINEN- UND ANLAGENBAU Inventor/a BARKOWSKY, Hans-Juergen

The invention relates to an assembly element (2, 2') for the forming of flat elements such as for example walls (1), floors or roofs with at least two board-like basic elements (3, 3') having spacers (4, 4', 5). The spacers (4, 4', 5) comprise spacer strips or individual spacer pieces separate from one another are secured between two board-like basic elements (3, 3'), in the region of the vertical long sides and substantially form a U-shaped groove or a U-shaped tongue. Such spacers (4, 4', 5) do not involve sectional rails and require no separate strip-like connecting elements for the connection of at least two assembly elements (2, 2').

9.WO/2001/038691DEVICE FOR INJECTING A FLUID INTO A FORMATION

WO - 31.05.2001

Clasificación Internacional E21B 27/02 Nº de solicitud PCT/EP2000/011906 Solicitante SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. Inventor/a HEIJNEN, Wilhelmus, Hubertus, Paulus, Maria

A device (1) for injecting a fluid into an earth formation surrounding a wellbore, comprising a body suitable to be arranged in the wellbore and being provided with means for connecting the body to a tubing (14), a fluid chamber (17) for storage of said fluid, and a pair of inflatable packers (35) arranged to isolate a portion of the wellbore between the packers from the remainder of the wellbore upon inflation of the packers (20), the body further being provided with an outlet port located between the packers for flow of fluid from the fluid chamber to outside the device, means for inflating the packers upon the occurrence of a primary fluid pressure in the tubing, and means for ejecting fluid from the fluid chamber via the outlet port to outside the device upon the occurrence of a secondary fluid pressure in the tubing, wherein the secondary fluid pressure is higher than the primary fluid pressure.

10.WO/2000/053884HYBRID PIPE FOR GREAT DEPTH

WO - 14.09.2000

Clasificación Internacional E21B 17/01 Nº de solicitud PCT/FR2000/000522 Solicitante COFLEXIP Inventor/a KODAISSI, Elie

The invention concerns a hybrid pipe characterised in that it comprises a rigid metal central portion (8) whereof the top end (9) is connected to at least an upper section (5) of flexible pipe of predetermined length and whereof the other lower end is connected to a flexible section (11) having a length not less than the length of the flexible pipe upper section (5).

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