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An armor with rollers is provided that enables a user to move in all positions by rolling on a hard and smooth surface while constantly varying his bearing points on the ground.
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| Number | Title | Issue Date |
| 6883611 | Sealed multilateral junction system A sealed multilateral junction system provides fluid isolation between intersecting wellbores in a subterranean well. In a described embodiment, a method of forming a wellbore junction includes the steps of sealing a tubular string in a branch wellbore to a tubular ... | 04/26/2005 |
| 6877557 | In-well monitoring and flow control system An in-well monitoring and flow control system with an improved power supply. A separate high voltage (18) and low voltage power supply (23) is provided together with a cable (14) which has at least two separate cores; one core (24) for hi... | 04/12/2005 |
| 6832649 | Apparatus and methods for utilizing expandable sand screen in wellbores In one aspect of the invention apparatus and methods are provided for completing a wellbore using expandable sand screen. An apparatus including a section of expandable sand screen, and an expanding member is disposed in the wellbore on a tubular run-in string. Ther... | 12/21/2004 |
| 6820690 | Technique utilizing an insertion guide within a wellbore A technique for facilitating the use of a variety of completion elements in a wellbore environment. The technique utilizes an insertion guide disposed within an open-hole section of a wellbore. The insertion guide may be radially expanded towards the surrounding for... | 11/23/2004 |
| 6814161 | Stakedown assembly for a horizontal directional drill A stakedown assembly for a horizontal directional drill that multiplies the travel of a hydraulic cylinder so that the drive head travels twice the distance of the hydraulic cylinder travel. A gear pinion is pivotally attached to a top end of the hydraulic cylinder.... | 11/09/2004 |
| 6814162 | One cone bit with interchangeable cutting structures, a box-end connection, and integral sensory devices A drill bit, comprising a bit body, a sensor disposed in the bit body, a single journal removably mounted to the bit body, and a roller cone rotatably mounted to the single journal. ... | 11/09/2004 |
| 6802379 | Liquid lift method for drilling risers A method for drilling a well below a body of water as disclosed which includes injecting into the well, at a depth below the water surface, a liquid having a lower density than a density of a drilling mud producing a mixture of drilling mud and low-density liquid in... | 10/12/2004 |
| 6789621 | Intelligent well system and method An intelligent well system and method has a sand face completion and a monitoring system to monitor application of a well operation. Various equipment and services may be used. In another aspect, the invention provides a monitoring system for determining placement o... | 09/14/2004 |
| 6782959 | Cutter element with non-linear, expanded crest A cutter element for a drill bit has a crest that defines a crest line. The crest can be non-rectilinear. The crest line of each cutter element defines an angle with respect to the axis of the rolling cone on which the cutter element is mounted. The cutter elements ... | 08/31/2004 |
| 6776235 | Hydraulic fracturing method This invention relates generally to the art of hydraulic fracturing in subterranean formations and more particularly to a method and means for optimizing fracture conductivity. According to the present invention, the well productivity is increased by sequentially in... | 08/17/2004 |
| 6776236 | Methods of completing wells in unconsolidated formations Methods of completing unconsolidated hydrocarbon producing zones penetrated by cased and cemented well bores are provided. The methods include the steps of forming spaced openings through the casing and cement and injecting a first hardenable resin composition throu... | 08/17/2004 |
| 6763900 | Directional well drilling An orienter for controlling the drilling direction in a well. A main body 40, 23 is couplable to a drill string, and a nose tubing 50 is movably mounted by a universal joint in the main body. A collar 42 with a bore 43 engages in a cam-li... | 07/20/2004 |
| 6763891 | Production tree with multiple safety barriers The wellhead assembly has a production tree with multiple safety barriers. A tubing hanger lands and seals in the bore of the tree. The tubing hanger has a lateral production flow passage that registers with a lateral passage in the tree. A tubing annulus passage ex... | 07/20/2004 |
| 6763899 | Deformable blades for downhole applications in a wellbore A method and apparatus for controlling fluidic torque in a downhole tool is provided. One or more rotatable components of the downhole tool comprise a deformable material, such as rubber or SMA, selectively deformable in response to the flow of fluid through the dow... | 07/20/2004 |
| 6761231 | Rotary driven drilling hammer A percussive tool adapted to receive rotational energy from the inner member of a dual-member drill string. In a preferred embodiment the percussive tool has a hydraulic pump, driven by a drive member, to operate the hammer assembly. In another preferred embodiment ... | 07/13/2004 |
| 6761233 | Apparatus for propulsion in elongated cavities An apparatus for propulsion inside an oblong cavity, such as pipes or the like, is disclosed. The apparatus is characterized by comprising a central rotating part comprising an inclined wheel construction arranged to thrust towards the inner wall of the cavity, in t... | 07/13/2004 |
| 6758275 | Method of cleaning and refinishing tubulars A method for cleaning and/or altering an inside surface and shape of a tubular in a wellbore. The method includes placing a surface finishing tool in the tubular, energizing the surface finishing tool, and causing extendable assemblies therein to extend radially to ... | 07/06/2004 |
| 6758276 | Method and apparatus for displacing drilling fluids with completion and workover fluids, and for cleaning tubular members A tubular body or mandrel incorporated into a string of tubular pipe, on which first and second swab cups and first and second metal brushes and a casing scraper are mounted, is run into a cased earth borehole to displace a first fluid in the borehole, usually a dri... | 07/06/2004 |
| 6755247 | Fluid property sensors and associated methods of calibrating sensors in a subterranean well Fluid property sensors and associated methods of calibrating sensors in a well provide enhanced well monitoring and control. In one described embodiment, an external venturi flowmeter is utilized to determine a flow rate of fluid from a zone into a tubing string, in... | 06/29/2004 |
| 6745846 | Expandable downhole tubing The present invention relates to portions of casing that are inserted into a wellbore. The casing portions are provided with a protected portion in which a friction and/or sealing material can be located. In certain embodiments, the protected portion is provided by ... | 06/08/2004 |
| 6745856 | Methods and apparatus for disposing of deleterious materials from a well An improved method and apparatus for processing deleterious material on a floating vessel during transportation from a well to a disposal site. The vessel contains equipment for the slurrification and agitation of the deleterious material. Such equipment includes st... | 06/08/2004 |
| 6742595 | Subsurface safety valve lock out and communication tool and method for use of the same A communication tool (100) for communicating hydraulic fluid through a tubing retrievable safety valve (50) is disclosed. The tool (100) has a first section (102) and a second section (132) that are initially coupled together. A se... | 06/01/2004 |
| 6739390 | Articulated seal An articulated seal for use with polished rod and rotary drive head assemblies is described. In particular, an articulated seal assembly or system 10 is described which seals a rotating drive head and polished rod between high pressure internal fluids within ... | 05/25/2004 |
| 6739413 | Using a rotating inner member to drive a tool in a hollow outer member A rotating inner member is used to drive a downhole tool housed within the hollow outer member of a dual-member drill string. The downhole tool preferably will be adapted to receive rotational energy from the inner member. In a preferred embodiment, the downhole too... | 05/25/2004 |
| 6736209 | Method for vibrational impact on a pipe string in a borehole and devices for carrying out said method The invention relates to well construction and is directed at an oscillation excitation in a pipe string. According to the inventive method, an operating fluid is circulated in the pipe string. An autonomous mechanism for vibrational impact embodied in the form of a... | 05/18/2004 |
| 6732822 | Method and apparatus for handling tubular goods An apparatus for handling tubular goods which includes an elongate body having a coupling end adapted for mating engagement with a tubular good. The coupling end includes a structural member, a flexible cylindrical cage and a pressure member. Longitudinal strips joi... | 05/11/2004 |
| 6729398 | Methods of downhole testing subterranean formations and associated apparatus therefor Methods and apparatus are provided which permit well testing operations to be performed downhole in a subterranean well. In various described methods, fluids flowed from a formation during a test may be disposed of downhole by injecting the fluids into the formation... | 05/04/2004 |
| 6729407 | Method for removing gravel pack screens A method of removing a gravel packed screen to reach another zone is described. The method involves a bottom hole assembly comprising an isolation device for the screen and a tool to latch on to it. A perforating gun is shot off to put holes in the screen to allow g... | 05/04/2004 |
| 6722437 | Technique for fracturing subterranean formations A technique for stimulating production of fluids from a subterranean formation. The technique utilizes a tubular member disposed within a wellbore. The tubular member comprises transverse openings that facilitate a formation fracturing process. Subsequent to fractur... | 04/20/2004 |
| 6719068 | Probing device with microwave transmission Geological probing device comprising a hollow probing rod to be extended into the geological matter to be probed, and a measuring probe fitted to the probing rod, said measuring probe comprising sensors for obtaining information about the matter. The measurin... | 04/13/2004 |
| 6719061 | Apparatus and method for inserting and retrieving a tool string through well surface equipment Well surface equipment is provided to seal around the outer surface of portions of tool sections as the tool sections are assembled or disconnected in a portion of the well surface equipment. The portion of the well surface equipment is isolated from wellhead pressu... | 04/13/2004 |
| 6719046 | Apparatus for controlling the annulus of an inner string and casing string A apparatus is disclosed for attaching and sealing to the upper end of the casing allowing the inner string to be run through the apparatus. The apparatus provides a latch for anchoring the inner string and a seal for sealing on the inner string. Also disclosed is a... | 04/13/2004 |
| 6715551 | Apparatus and methods for applying time lapse VSP to monitor a reservoir Subterranean reservoir monitoring method, computer system with programming code for implementing the method, and computer readable media and data signal embodying such programming code, the method including one or more of: (a) reservoir screening; (b) reservoir mode... | 04/06/2004 |
| 6712160 | Leadless sub assembly for downhole detection system A drill string is equipped with a down hole sub assembly which contains sensors to detect equipment condition during drilling. The sub assembly has no electrical communication with the drill bit itself, and the sensors detect drill bit condition from vibrations or s... | 03/30/2004 |
| 6712140 | 3rd borehole radar antenna and algorithm, method and apparatus for subsurface surveys The invention relates to a borehole radar tool comprising, in a housing (2) a transmitting antenna and a receiving antenna both of which comprise, near the housing wall (2), a dipole antenna (8) and a reflector (10) opposite thereto. Also... | 03/30/2004 |
| 6705412 | E-Z auger adaptor The field of invention relates to ice auger that connects a standard battery operated drill to an adapter that connects a standard battery operated drill to an ice auger. Description of the prior art—Ice augers are known in the prior art and have been extensively ... | 03/16/2004 |
| 6702009 | Select-fire pressure relief subassembly for a chemical cutter A downhole chemical cutter (12) has first and second passages (124, 126) which extend parallel, in fluid communication with an interior passage (32). A first ignitor (210) in the first passage (124) ignites a propellant (34) in the interior passage (32) t... | 03/09/2004 |
| 6702010 | Apparatus and method for actuating arms In an apparatus and method for actuating arms used on a borehole data-logging tool to deploy measuring instruments against a borehole wall, a mandrel is provided. At least one arm carried by the mandrel is mounted to the mandrel to move between an expande... | 03/09/2004 |
| 6702045 | Drilling apparatus There is provided drilling apparatus (10) comprising a hammer casing (11), a free piston motor piston guide and porting sleeve (12), a drive sub (13), a drill bit (15) splined by shank (16) to the drive sub (13). Below the splined portion (17) the drive s... | 03/09/2004 |
| 6695053 | Bailer discharging device and method of using thereof An apparatus for discharging sample fluid from a bailer with a ball-joint and a method of using thereof. The apparatus has a body, an interior and an exterior, a top opening and a bottom opening, and a lip disposed around the top opening. The bottom of th... | 02/24/2004 |
