| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 166101000 | PACKER OR PLUG AND PUMP OR PLUNGER MEANS EXERTING OUTWARD PRESSURE | 13 |
| 20080289812 | SYSTEM FOR DOWNHOLE PACKING - An apparatus and method of forming a barrier to fluid flow behind a liner are provided. In one embodiment of the invention, a method includes the steps of conveying a tool to a position within a wellbore having a liner, the tool carrying a seal material, and injecting the seal material from the tool through the liner to form a barrier to fluid flow behind the liner. In another embodiment of the invention, the apparatus includes a housing having a chamber carrying a seal material, and a means for injecting the seal material through the wellbore liner. | 11-27-2008 |
| 20090107664 | HYDRAULIC PACKER CONSTRUCTED IN GLASS-FIBER REINFORCED EPOXI AND STAINLESS STEEL - The model consists of a hydraulic packer constructed in glass-fiber reinforced epoxy and stainless steel which has been developed and designed with wholly corrosion resistant material, being constructed with 70% glass-fiber reinforced epoxy and 30% stainless chromium steel. It has a larger area of packing and seal. It works with low driving pressure. Its hydraulic chamber achieves a greater packing force at normal pressure. It can be used in wells with tubing made of glass-fiber reinforced epoxy. It has a double anchorage system and a jack system. | 04-30-2009 |
| 20090321065 | RESETTABLE ANTIEXTRUSION BACKUP SYSTEM AND METHOD - A resettable antiextrusion system including a backup ring, a ramp in operable communication with the backup ring, and a gauge ring attached to the ramp. A method for sealing a tubular. | 12-31-2009 |
| 20100038069 | WELL BORE FLUID REDISTRIBUTION AND FLUID DISPOSAL - Redistribution of fluids present in well bore environments is disclosed. In some embodiments, the invention may be the redistribution of water produced in a coal bed methane well. The redistribution of water from one aquifer ( | 02-18-2010 |
| 20100206548 | METHODS AND APPARATUS TO PERFORM STRESS TESTING OF GEOLOGICAL FORMATIONS - Example methods and apparatus to perform stress testing of geological formations are disclosed. A disclosed example downhole stress test tool for pressure testing a geological formation comprises first and second packers selectively inflatable to form an annular region around the tool, a container configured to store a fracturing fluid, wherein the fracturing fluid is different than a formation fluid and a drilling fluid, a pump configured to pump the fracturing fluid into the first and second packers to inflate the first and second packers and to pump the fracturing fluid into the annular region to induce a fracture of the geological formation, and a sensor configured to detect a pressure of the fracturing fluid pumped into the annular region corresponding to the fracture of the geological formation. | 08-19-2010 |
| 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 |
| 20110272138 | HYDRAULIC PACKER CONSTRUCTED ENTIRELY OF GLASS-FIBER COMPOSITION AND STAINLESS STEEL - A hydraulic packer including a chamber and at least one piston that slides down inside said chamber. The entire hydraulic packer is made of a steel material and a glass-fiber composition including glass-fiber 30%, resin 60%, and epoxi with accelerator 10%. | 11-10-2011 |
| 20120222856 | COILED TUBING DEPLOYED ESP - According to the present invention, there is provided a well pumping system comprising a length of coiled tubing extending to the surface of the well, a first electric pump, a first electric motor, and a sealing means that seals against the side of the well. The sealing means include a first fluid path through which coiled tubing is in fluid communication with the well beneath the sealing means, and a second fluid path through which first electric pump is in fluid communication with the well beneath the sealing means. | 09-06-2012 |
| 20130062049 | SHAPED MEMORY POLYPHENYLENE SULFIDE (PPS) FOR DOWNHOLE PACKER APPLICATIONS - A downhole element to isolate or complete a wellbore includes a shape memory material including polyphenylene sulfide. The polyphenylene sulfide is the cure product of being cured at a temperature of about 200° C. to about 400° C., for a total time of less than or equal to 200 hours. The shape memory material is thermally activated between an actuated and unactuated shape, and the polyphenylene sulfide in the shape memory material is a closed cell foam, open cell foam, or solid. | 03-14-2013 |
| 20130133876 | SEAT ASSEMBLY FOR ISOLATING FRACTURE ZONES IN A WELL - A fracture plug seat assembly used in well stimulation for engaging and creating a seal when a plug, such as a ball, is dropped into a wellbore and landed on the fracture plug seat assembly for isolating fracture zones in a well. The fracture plug seat assembly has a fracture plug seat that includes elastomeric material and reinforcing material. | 05-30-2013 |
| 20140238660 | Downhole Seal Element and Related Apparatuses - A downhole seal element ( | 08-28-2014 |
| 20140284047 | EXPANDABLE PACKER - An expandable packer tool comprising a mandrel tool body; a sleeve-like packer element mounted on the tool body; and a setting mechanism that is operable to axially compress the packer element such that the diameter of the packer element in its compressed state is increased compared to it uncompressed state. An extrusion barrier can comprise a ring of seal elements disposed around the tool body on either side of the packer element, and arranged to engage the packer element so that expansion of the packer element causes the ring of seal elements to expand in a corresponding manner so as to form an extrusion barrier; wherein the ring of seal elements comprises wedge-shaped seal members comprising first seal members having a inner base wider than an outer surface, and second seal members having an inner base narrower than an outer surface, the ring comprising alternating first and second members, the inclined faces of each wedge-shaped member engaging the corresponding faces of adjacent members. A retraction mechanism for the packer element comprises a cut-out in its inner surface near at least one end; and the setting mechanism comprises an inner mandrel that has an outward projection that engages in the cut-out so that the inner mandrel can exert a pulling force on the packer element. | 09-25-2014 |
| 20140338887 | ANNULAR FLUID CONTAINMENT DEVICE - An annular fluid containment device includes a mandrel, and packing assembly disposed about the mandrel to form a seal between the mandrel and the well casing. A sleeve disposed within the mandrel defines a space between the mandrel and the sleeve. Seals are disposed between the mandrel and sleeve at upper and lower ends, wherein the upper seal is located above a location of the packing assembly, and the lower seal is located below the packing assembly. Upper and lower passages are defined in the wall of the mandrel, in communication with the annular space, wherein the upper fluid passage is located above the packing assembly and below the upper seal, while the lower fluid is located below the position of the packing assembly and above the lower seal. Hence, a fluid passage is formed bypassing the packing assembly within the mandrel. | 11-20-2014 |
