Patent application number | Description | Published |
20090032257 | Method and Apparatus for Consolidating a Wellbore - This invention relates to a method and to a tool to consolidate a wellbore by displacing conventional cement slurry or any other settable fluid, without any permanent casing. A bladder is inflated inside the bore to act as a mold and to form an annulus that can be filled by cement slurry or any other settable fluid. When the cement or the resin is set, the form is retrieved by straight pull; leaving a cement or resin sheath to support the formation without requiring any re-dulling. The sheath can be perforated if necessary (in the producing zone). Applications include without limitations temporary cementation of mono-diameter wells, through-tubing repair of an open hole, or cementation of a slotted liner in water, oil or gas wells | 02-05-2009 |
20090151929 | Method and Device for Cementing a Well or a Pipe - This method consists in introducing within the well or pipe (C) a mandrel ( | 06-18-2009 |
20090188569 | METHOD AND APPARATUS FOR PATCHING A WELL BY HYDROFORMING A TUBULAR METAL PATCH, AND A PATCH FOR THIS PURPOSE - A method of patching a well or a pipe by hydroforming a tubular metal patch. A tool provided with a pair of inflatable packers is inserted inside the patch. The pair of inflatable packers are axially spaced apart from each other by a distance that is substantially equal to the length of the patch. The tool is positioned inside the patch so that the packers are in register with the end portions of the patch. The assembly of the tool and the patch is axially inserted inside the well or the pipe, and positioned in register with the zone for patching. The packers are inflated to a high pressure, sufficient for radially expanding the end portions of the patch and pressing them in a leak-tight manner against the wall of the well or the pipe. The packers are subsequently deflated and the tool is withdrawn. The method is applicable to the oil industry. | 07-30-2009 |
20090309356 | Flexible Pipe Having Integrated End Fittings - A flexible pipe comprising a flexible cylindrical tubular pipe body connected at each of its ends to a rigid connector end fitting in the form of a sleeve. The wall of the pipe body is mechanically reinforced by at least one traction layer of filaments of small thickness, presenting high traction strength, that are wound helically about the longitudinal axis of the pipe. The traction layer is composed of an array of uninterrupted filaments interconnecting the two end fittings alternately in one direction and then in the other direction, while being fastened on the end fittings. | 12-17-2009 |
20100132952 | METHOD FOR CASING USING MULTIPLE EXPANDED AREAS AND USING AT LEAST ONE INFLATABLE BLADDER - The method of the invention comprises inserting into the well or the piping to be cased, a tube ( | 06-03-2010 |
20100163254 | Device For Sealing Off A Well And A Pipe And A Fitting Method - The invention relates in particular to a device for sealing off a well or a pipe, that comprises a tubular sleeve that can be radially expanded by an inflating fluid, in order to press hermetically against the wall of the well or pipe, which sleeve is connected to end members, at least one of which comprises an annular skirt directed towards this sleeve. It is characterized essentially in that the skirt wall has a number of through-holes therein and in that the material of the sleeve surrounds said skirt in such a way as to cover its outside and inside faces, sealing said holes and leaving no gaps. | 07-01-2010 |
20100193124 | Method of Lining a Well or a Pipe Using an Inflatable Bladder - According to the method, a cylindrical tube ( | 08-05-2010 |
20100243234 | A CONTROL DEVICE FOR AN INFLATABLE TOOL FOR THE TREATMENT OF A WELL OF A PIPE - The invention relates to device for controlling an inflatable tool used to treat a well or pipeline. The device, which is inserted between the outlet of a fluid supply pipe and the tool, comprises: a chamber communicating with the exterior through a tube and with the tool via a pipeline; and a piston mounted in said chamber, which, under the force of a spring, normally occupies a first position in which it seals the outlet of the pipe, the aforementioned tube then communicating with the pipeline. The pipeline is provided with at least one spring-loaded check valve which allows the passage of the pressurised fluid from the chamber to the tool when the pressure upstream of the valve exceeds a predetermined threshold value, which prevents the passage of the fluid in the opposite direction. | 09-30-2010 |
20110056704 | METHOD AND DEVICE FOR CASING A BORED WELL PORTION - The invention comprises using a tube having a ductile and radially expansible upper portion, provided at the base thereof with a seal that is also radially expansible under the action of the weight of the tube, the latter being thus sized so that when its base abuts the bottom of the well, the upper portion is located above a fractured area to be isolated, the procedure comprising the following steps: the tube is inserted into the well so that the base thereof bears against the bottom, triggering the radial expansion of the seal; using an expansion tool, the upper portion of the tube is radially expanded beyond its yield strength in order to apply the same tightly against the wall of the well above the fractured area. The invention can be used in the petroleum industry. | 03-10-2011 |
20110100499 | FLEXIBLE PIPE WITH IN-BUILT END PIECES - This flexible pipe comprises a versatile and flexible tubular body (PP) which comprises, from the outside toward the inside, a pressure arch ( | 05-05-2011 |
20120211222 | DEVICE FOR APPLYING AN EXPANDABLE SKIRT HAVING APPLICATION DIAMETER CONTROL UPON ADVANCE - The present invention relates to a device for laying an expansible lining in a conduit. The device may include a patch having an initial diameter less than that of the conduit, and the patch may be configured to deform by radial expansion beyond an elastic limit to an expanded diameter such that it may contact a wall of the conduit. The device may also include an expander tool axially displaceable inside the patch, and the expander tool may be configured to cause the radial expansion of the patch to an expanded diameter. The device may also include a checking member mounted in proximity to the expander tool. A section of the checking member may be calibrated so that the checking member and the expander tool are capable of passing freely inside the patch when the patch is properly expanded, and the checking member and the expander tool are unable to pass inside the patch when the patch is improperly expanded. | 08-23-2012 |
20130105158 | METHOD AND DEVICE FOR SEALING A WELL BY MEANS OF A CORE PLUG, PLUG FOR IMPLEMENTING THE METHOD, AND EXTRACTOR TOOL DESIGNED TO REMOVE IT | 05-02-2013 |
20130146308 | Support Device Of Equipment Inside A Well, A Process For Fixing It And A Process For Placing Such Equipment - The present invention relates to a support device for tubular equipment, such as a liner inside a well, said support device including two elements attached to each other, comprising: a) a cylindrical sleeve, made of ductile metal, the cylindrical sleeve having an external diameter slightly less than an inner diameter of the well or of a casing inserted into the well; b) a set of tabs made of hard metal, which are spaced apart from each other and integral with the cylindrical sleeve, the tabs extending downwards from the cylindrical sleeve, wherein an outer wall of the tabs is fitted with a series of notched formations, such as teeth, whereas an inner wall of the tabs has a conical form, the apex of which is turned down. Methods of using the aforementioned support device are also disclosed. | 06-13-2013 |
20130240202 | ISOLATION DEVICE OF PART OF A WELL - The invention relates to isolation of part of a well, which comprises pipe provided, along its external face, with a first external sleeve, wherein the opposite ends are connected directly or indirectly to said external face of the pipe. The pipe, first external sleeve and its ends together delimit an annular space, the wall of said pipe exhibiting at least one opening which allows it to communicate with said space, this sleeve being likely to expand and to be applied tightly against the well over an intermediate part of its length. The device also comprises on the one hand, a second internal sleeve, which extends between said pipe and the first sleeve, its ends being also connected directly or indirectly to the external face of said pipe and, on the other hand, at least one communication passage between the exterior of the first sleeve and said space. | 09-19-2013 |
20150075818 | PIPE PROVIDED WITH A CRIMPED METAL ELEMENT, AND CORRESPONDING PROCESS - A pipe designed to be placed within a well for producing a fluid of interest, a pipe onto the outer face whereof is crimped a tubular metal element, wherein:
| 03-19-2015 |