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1 / 492,632
1.WO/1999/037878SLIMHOLE DRILL SYSTEM
WO - 29.07.1999
Int.Class E21B 7/00
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
7Special methods or apparatus for drilling
 Appl.No PCT/US1999/001562 Applicant WESTERN ATLAS INTERNATIONAL, INC. Inventor AMBS, Loran, D.
A system for drilling a slender borehole through geologic formations. The system comprises a hollow drill pipe (20) having a drill bit (26) for maintaining gauge of the borehole. A pulsed generator (10) such as a homopolar generator provides the power for operating a downhole rail gun (12). One or more projectiles (14) are accelerated by the rail gun to impact the geologic formations and to extend the borehole length. A plasma generating material (38) is attached to the projectiles to generate a plasma for accelerating the projectiles, and the projectiles can include a secondary explosive for impacting the geologic formations. A controller controls the operation of the rail gun in cooperation with the drill rate to provide interactive control over the firing rate and the energy of projectiles impacting the geologic formations.
2.WO/1998/058144FORMWORK DEVICE WITH ADJUSTABLE BENDING RADIUS
WO - 23.12.1998
Int.Class E04G 11/06
EFIXED CONSTRUCTIONS
04BUILDING
GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
11Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
06for walls, e.g. curved
 Appl.No PCT/FR1997/001083 Applicant EUROBRESS (S.A.R.L) Inventor FOUR, Gilles
The invention concerns a formwork device with adjustable bending radius comprising arch centering templates (10) cut out at a predetermined bending radius, clamping means (8, 9) for pressing the arch centering templates (10) against the formwork sheet metal (2) and adjusting means (4, 5, 6, and 7) provided for deforming the formwork sheet metal (2) either along the arch centering template (10) bending radius, or along different bending radii which, however, are within said template elastic deformation.
3.WO/1999/005508ULTRAVIOLET TOXIC GAS POINT DETECTOR
WO - 04.02.1999
Int.Class G01N 21/33
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
17Systems in which incident light is modified in accordance with the properties of the material investigated
25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
31Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
33using ultraviolet light
 Appl.No PCT/US1998/014377 Applicant GENERAL MONITORS, INCORPORATED Inventor BALIGA, Shankar
Apparatus for the optical detection of selected toxic gases, using the ultraviolet region of the electromagnetic spectrum, and the known absorption properties of the toxic gases in the ultraviolet region. An ultraviolet flashlamp source illuminates a straight, highly polished metal tube with numerous perforations to permit access for the gas to be detected. The ultraviolet light then enters an optical compartment comprising an optical beamsplitter and two ultraviolet detectors with wavelength selective narrowband filters attached. The filters are selected so that one overlaps the region of absorption by the gas while the second is in a region where there is no absorption by the gas. The electronic circuit following the ultraviolet detectors and the drivers for the flashlamp, are timed by a microprocessor that provides the means for the electronics and data processing to be synchronized with the flashlamp pulse. The concentration of the absorbing gas is calculated from the output of the two detectors including the dark outputs measured while the flashlamp is turned off. By this method a part per million sensitive toxic gas sensor useful to measure gases such as hydrogen sulfide, sulfur dioxide and benzene is obtained.
4.WO/2000/020896PIEZOELECTRIC CONVERTER
WO - 13.04.2000
Int.Class B06B 1/06
BPERFORMING OPERATIONS; TRANSPORTING
06GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
BGENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
1Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency
02making use of electrical energy
06operating with piezoelectric effect or with electrostriction
 Appl.No PCT/RU1999/000361 Applicant ORENTLIKHERMAN, Isaak Aronovich Inventor ORENTLIKHERMAN, Isaak Aronovich
The present invention pertains to the field of geophysical well equipment and of equipment for applying physical actions on the fields. This invention can be used in geological prospecting, in the mining, petroleum- and gas-extraction industry as well as in other industrial branches for intensifying the extraction of mining resources. The piezoelectric converter includes a piezoelectric packet that comprises longitudinally polarised piezo-ceramic rings which are connected in parallel and associated with end parts having a thickness of λ\40, wherein λ is the wavelength of the material used for said parts. The piezoelectric converter also includes a reinforcement rod member as well as a retaining ring member that provides the longitudinal compression forces of the piezoelectric converter, i.e. the reinforcement force thereof. The retaining member comprises a flute for dampening oscillations and for eliminating the need for any reinforcement tube in the oscillating system. The piezoelectric packets are connected by a flexible insert or resilient member. The rod member and the retaining member are connected so that the reinforcement force can be adjusted. The resilient member and the end parts are made of a material exhibiting wave resistance as well as a thermal expansion coefficient for the ceramic of the rings, e.g. titanium or steel. This piezoelectric converter has an increased reliability and an extended life time.
5.WO/2000/022280ACOUSTIC METHOD (ARWL) FOR APPLYING AN ACTION ON A WELL AND ON THE LAYER OF A FIELD OF MINERAL RESOURCES
WO - 20.04.2000
Int.Class E21B 28/00
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
28Vibration generating arrangements for boreholes or wells, e.g. for stimulating production
 Appl.No PCT/RU1999/000367 Applicant ORENTLIKHERMAN, Isaak Aronovich Inventor ORENTLIKHERMAN, Isaak Aronovich
The present invention pertains to the extraction of mineral resources obtained by a method involving the use of wells, and essentially relates to an acoustic method for applying an action on a well and on the layer of a field of mineral resources (ARWL). This invention can be used in the crude-oil extraction as well as in the gas, mining and geological prospecting industry. This invention is more particularly intended for use in the gas and crude-oil extraction techniques, mainly during operations for the rehabilitation of wells and layers (acoustic rehabilitation of wells and layers or ARWL) in order to increase the crude oil yield from the layers and to enhance the crude oil extraction. The method of the present invention comprises operations that involve applying a complex acoustic action on the perforated zones of the well and carrying out a selective treatment of the perforation interval and of the producing strata of the layer using a directed acoustic field in order to combine the pressure, the duration and the range of the action. The method involves using sound and ultrasonic signals with directivity characteristics of up to 180° as well as acoustic pressure indicators from minimal values necessary for modifying the current operation of the well to maximal values defined by the elasticity limits of the rock. These operations are carried out for a duration which represents an efficient action duration, the action range being the initial efficient action range. The treatment can be made according to a basic mode that involves sequentially treating the well perforation interval and the producing strata of the layer using three acoustic signals, or according to another combined sequence determined from the type and the condition of the well. This method is used for unifying the complex action for all types of wells having different exploitation modes and being operational or not.
6.WO/1998/011291COMPOSITE FABRICS, METHOD FOR THE PRODUCTION AND USE THEREOF
WO - 19.03.1998
Int.Class D04H 13/00
DTEXTILES; PAPER
04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING
13Other non-woven fabrics
 Appl.No PCT/EP1997/004933 Applicant KUFNER TEXTILWERKE GMBH Inventor SCHWEKUTSCH, Siegfried
The invention relates to a composite fabrics, comprising woven material or knitted fabrics and at least one non-woven layer, wherein the woven material or knitted fabrics and the fleece non-woven layer(s) are glued together. Also disclosed is a method for the production of the composite fabrics and its use as a stiffening insert, especially as a plate insert, e.g. for strengthening and upholstery of sleeves in the elbow area, strengthening of waistbands or caps and/or hats.
7.WO/1999/017473MARINE SEISMIC SOURCE
WO - 08.04.1999
Int.Class G01V 1/135
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
1Seismology; Seismic or acoustic prospecting or detecting
02Generating seismic energy
133using fluidic driving means, e.g. using highly pressurised fluids
135by deforming or displacing surfaces of enclosures
 Appl.No PCT/US1998/019230 Applicant WESTERN ATLAS INTERNATIONAL, INC. Inventor AMBS, Loran, D.
A seismic acoustic signal source (36) includes a hull (30) that has a wetted surface in contact with a body water (16). When underway, the draft of the hull (30) is substantially zero. An acoustic signal generator (36) is provided with a linear actuator (39) that is resiliently mounted in the hull. The linear actuator (39) is acoustically coupled to the bottom such that when the signal generator (36) is activated, the hull (30) radiates an acoustic wavefield (28) into the water (16).
8.WO/2003/073869DIETARY AND COSMETIC COMPOSITION BASED ON CROSSLINKED NATURAL POLYMERS IMMOBILIZING ACTIVE PRINCIPLES
WO - 12.09.2003
Int.Class A23L 1/30
AHUMAN NECESSITIES
23FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES; PREPARATION, TREATMENT OR PRESERVATION THEREOF
LFOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES, NOT OTHERWISE PROVIDED FOR; PREPARATION OR TREATMENT THEREOF
1Foods or foodstuffs; Their preparation or treatment
29Modifying nutritive qualities of foods; Dietetic products
30containing additives
 Appl.No PCT/FR2003/000704 Applicant INNOFORM Inventor MAYRAND, Dominique
The invention concerns a dietary and cosmetic composition based on at least one natural food polymer containing immobilized active principles obtainable by crosslinking said polymer and mixing it with depressor or reverse osmosis units. The invention also concerns a method for obtaining such a composition.
9.WO/2001/046612HIGH TEMPERATURE COMPOSITE PIPE WRAPPING SYSTEM
WO - 28.06.2001
Int.Class F16L 58/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
58Protection of pipes or pipe fittings against corrosion or incrustation
02by means of internal or external coatings
04Coatings characterised by the materials used
 Appl.No PCT/US2000/034331 Applicant WIL-COR, INC. Inventor WILSON, Fred, D.
A method and apparatus for providing metal or non-metal vessels including straight and curved pipes (10) and various pipe connections, such as T's, elbows, swages, etc., and pressure containing vessels such as tanks, with an external composite lining (16) of a webbing of biaxial or triaxial weave preferably composed of fiberglass (18) which is pre-impregnated with a high temperature heat curable polymer composition capable of being heat cured at a temperature range of from about 275 F to about 375 F. The vessel is prepared for bonding by abrasive cleaning and by solvent cleaning. Metal imperfections are then filed with an epoxy (14).
10.WO/2003/040520METHOD FOR TREATING A BOTTOM-HOLE FORMATION ZONE
WO - 15.05.2003
Int.Class C09K 8/72
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
8Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
60Compositions for stimulating production by acting on the underground formation
62Compositions for forming crevices or fractures
72Eroding chemicals, e.g. acids
 Appl.No PCT/UA2002/000051 Applicant PECHERITSA, Konstantin Arikovich Inventor PECHERITSA, Konstantin Arikovich
The invention relates to the oil-gas production industry and can be used for stimulating wells by increasing the permeability thereof. The inventive method consists in supplying an acid in an inactive form to a formation. Said invention is characterised in that titanium chloride hydrates having the general formula TiCl4 nH2O, wherein n=1.5-2.5, are used as an acid in an inactive form. Said hydrates have a crystalline structure with bulk density of 1.1 g/cm3 and the content of active chlorine hydrate ranging from 56 to 60 %. Said invention makes it possible to extend the radius of the zone of penetration of the acid into the formation matrix, thereby increasing the penetration of the formation and the efficiency of the treatment of a bottom-hole formation zone.
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