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JP4806398B2 |
Certain embodiments provide a heater. A heater device includes a skin effect component having at least one insulated electrical core conductor in electrical communication with an adjacent and substantially parallel, elongated ferromagnet...
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JP4794550B2 |
Certain embodiments provide a heater. A heater device includes a skin effect component having at least one insulated electrical core conductor in electrical communication with an adjacent and substantially parallel, elongated ferromagnet...
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JP4789050B1 |
The present invention relates to blocking a flow of crude oil or natural gas from a steel pipe for extracting the oil or the like that has been installed in the sea when the steel pipe is broken. When a steel pipe 4 for petroleum well in...
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JP4677481B2 |
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JP4551436B2 |
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JP4508509B2 |
Embodiments of the present invention are directed to a two-stage expander device (50), having spaced-apart annular shoulders (52, 54) of different outer diameters. Certain other embodiments are directed to en expansion system and method ...
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JP2010090557A |
To secure the quality of a cast-in-place pile by decreasing a change in the water level of hole wall slurry, when the cast-in-place pile is constructed by an earth drill method.This casing tube A for the earth drill method is constituted...
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JP4389813B2 |
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JP4289686B2 |
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JP2009121236A |
To provide a device and a method for unexcavated replacement of an underground pipe.A pipe parting mole (40) includes a given length of cable (70) engageable to the mole (40), and a cable pulling device engagement system generally includ...
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JP2008534822A |
Radial expansion system Radial expansion system [Selection diagram] Fig. 1
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JP2008509300T5 |
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JP4098957B2 |
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JP4086614B2 |
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JP2008509300A |
An expandable tubular member [Selection diagram] Fig. 1
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JP2007521430A |
An expandable tubular member.
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JP3920357B2 |
System for controlling oil well fires by blocking the production or drilling pipes. A box incorporating a movable piston is fitted around the pipe. The piston carries, on its forward end, a drilling cylinder (3), which can be brought to ...
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JP2006517011T5 |
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JP2006517011A |
A lubrication system for lubricating an interface between one or more expansion surfaces of an expansion device and one or more interior surfaces of a tubular member during a radial expansion of the tubular member using the expansion dev...
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JP3730570B2 |
The steering assembly (20) includes upper (26) and lower (28) tubular housings connected by a universal joint (30). An angle cam is disposed on the end of the lower housing and projects into the upper housing. A plurality of wedge member...
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JP2005340684A |
To provide an attaching structure of an electronic element to a substrate which can restrain the inflow of solder into a through hole which should be protruded from the prescribed edge of a heat dissipating plate when the heat dissipatin...
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JP2005517105A |
The drilling system includes a work string supporting a bottom hole assembly. The work string including lengths of pipe having a non-metallic portion. The work string preferably includes a composite coiled tubing having a fluid impermeab...
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JP2005506475A |
An oil or gas well slip system is provided that includes a first movable member having an interactive contact surface and a second movable member having a mating interactive contact surface for slidable engagement with the interactive co...
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JP3538457B2 |
PURPOSE: To minimize the noise at cutting, and uniformly and quickly cut a pipe by making a rolling roller movable to be protruded in the radial direction of a cylinder when a rotating shaft is pulled backward, so that the cylinder is re...
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JP3446207B2 |
PCT No. PCT/FR94/00484 Sec. 371 Date Nov. 3, 1995 Sec. 102(e) Date Nov. 3, 1995 PCT Filed Apr. 28, 1994 PCT Pub. No. WO94/25655 PCT Pub. Date Nov. 10, 1994The tubular structure comprises at least a braid of flexible strands (10) comprisi...
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JP3441072B2 |
A method of creating a wellbore in an underground formation is provided. A borehole is drilled in the underground formation, whereafter a casing of a ductile material is lowered into the borehole. The casing is selected to have a smaller...
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JP3288987B2 |
To provide a method by which the casing leakage of a deep well or the like can be repaired in a short time without reducing a casing diameter as a pipe-in-pipe in the repair of the casing leakage. In the casing pating method, a packer 1 ...
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JP2002513119A |
(57) [Summary] The folding tube has a wall with at least three more bendable areas than the other areas that form the hinge, the hinge can bend the tube inward to form a contraction shape, and bend outward to be cylindrical. The walls, w...
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JP3249511B2 |
Tool for slitting and laterally expanding underground steel gas mains and inserting replacement plastic piping into the spread apart pipeline has a forward end cylindrical portion mounting a single, rearwardly angled blade to make only o...
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JP3217403B2 |
PURPOSE: To prevent the rotation of a tool for cutting an existing main pipe and expanding it so that a main pipe to be exchanged is passed through the existing main pipe by supporting a guide roller an a cutter by a supporting body havi...
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JP2001508161A |
The basic features of the invention include a pipe parting mole, a length of cable that is engagable to the mole, a cable pulling device and a cable pulling device engagement means that provides a mounting structure for the cable pulling...
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JP3164366B2 |
Disclosed is a thermoplastic polymer-linked-asphalt and a process for making a thermoplastic polymer-linked-asphalt. More particularly, disclosed is a reaction process for linking epoxide-containing polymers to asphalt. The improved ther...
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JP3156796B2 |
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JP3090859B2 |
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JP2891907B2 |
A method of drilling the packing gravel and formation materials around an existing casing pipe in order to regenerate an old well. The method comprises the steps of sequentially filling the inside of the casing pipe of the old well with ...
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JP2845823B2 |
A mobile cutter robot for making a hole is equipped with a rotary grinder assembly consisting essentially of an abrasive body having an axis of rotation, a ball bearing coaxially embedded in the surface of the abrasive body, and a tubula...
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JP2727314B2 |
The drill has a conical point, a breaker head (6) fitted on the point, a pull cable engaging with the point, and a cable cover in the form of an elastic sleeve. The point has an axial opening (3) for a pull cable adaptor (11-13) and a tr...
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JP2710680B2 |
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JPH1037680A |
To cut reinforcements buried to an existing pipe made of reinforced concrete efficiently and surely by forming the spiral type edge section of a spiral type roller cutter in a plurality of strips in a cutter head for a tunnel boring mach...
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JP2707196B2 |
PURPOSE: To regenerate the existing well, not yet attaining its goal as a hot spring, into a spa well. CONSTITUTION: A jet perforator 30 is set up in the existing well consisting of a first stage casing 21, a second stage casing 22 and a...
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JP2707193B2 |
PURPOSE: To regenerate an old well by a method wherein the periphery of the casing pipe of the old well is dug down by a pressure muddy-water circula tion type doughnut drill bit, the casing pipe is cut in proper length and extracted, an...
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JP2703379B2 |
PCT No. PCT/SU88/00235 Sec. 371 Date Aug. 2, 1990 Sec. 102(e) Date Aug. 2, 1990 PCT Filed Nov. 22, 1988 PCT Pub. No. WO90/05832 PCT Pub. Date May 31, 1990.The method of casing off a producing formation in a well includes drilling into th...
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JPH08511839A |
An apparatus and method for selectively disconnecting a wireline from a downhole tool when the tool becomes lodged in an oil or gas well. The apparatus is directed to a wireline releasing device which includes a precharge chamber which c...
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JP2530737B2 |
PCT No. PCT/SU88/00234 Sec. 371 Date Sep. 20, 1989 Sec. 102(e) Date Sep. 20, 1989 PCT Filed Nov. 22, 1988 PCT Pub. No. WO89/06739 PCT Pub. Date Jul. 27, 1989.The method of well construction includes the steps of drilling the rock and con...
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JPH07107353B2 |
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JPH0791937B2 |
A system for severing anchor cable mooring lines and oil well drill pipes is disclosed in which a primary hydraulic system containing a first fluid under pressure is utilized to actuate cutters and a secondary hydraulic system containing...
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JPH07252986A |
PURPOSE: To make it possible to cut a casing pipe inserted into a hole. CONSTITUTION: An approximately cylindrical guide protection section 2 extended in the direction of the axis from the front end of a cylindrical tube 1 is provided. A...
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JPH0756198B2 |
The improved blowout preventer ram tail rod locking device of the present invention includes a housing 16, a body movable in the housing, having a threaded rod 98 and coacting with the outer end of the ram tail rod 30 to lock it in the r...
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JPH07501270A |
PCT No. PCT/FR92/00792 Sec. 371 Date Feb. 9, 1994 Sec. 102(e) Date Feb. 9, 1994 PCT Filed Aug. 13, 1992 PCT Pub. No. WO93/04312 PCT Pub. Date Mar. 4, 1993.Device for cutting a pipe (1) transporting fluid in order to stop the circulation ...
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JPH0686793B2 |
A shear ram-type blowout preventer for severing and sealing a drill pipe string comprises a housing having a throughway for receipt of the drill pipe. Opposed first and second ram assemblies are mounted in the housing on opposite sides o...
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