Patent application number | Description | Published |
20080318026 | METHOD OF MODIFYING CARBON NANOMATERIALS, COMPOSITES INCORPORATING MODIFIED CARBON NANOMATERIALS AND METHOD OF PRODUCING THE COMPOSITES - A polymer-carbon nanomaterial composite. The composite includes a polymer matrix; and plasma-modified carbon nanomaterials having surface functional groups attached thereto, wherein the carbon nanomaterial is selected from carbon nanotubes, carbon nanofibers, carbon nanoparticles, carbon black, nanodiamond, fullerenes, or combinations thereof. The invention also involves a method of making a polymer-carbon nanomaterial composite, and a method of modifying carbon nanomaterials. | 12-25-2008 |
20090301713 | Backpressure Valve for Wireless Communication - A backpressure valve. The backpressure valve may be configured to maintain a substantially controlled pressure in coiled tubing uphole thereof while simultaneously being compatible with a pressure pulse tool downhole thereof. The backpressure valve includes pressure generating capacity below its internal valve assembly so as to avoid the tendency of the assembly to throttle open and closed. Furthermore, the pressure generation is achieved in a manner avoiding cavitation. As a result, once the backpressure valve is opened, the pressure pulse tool is able to reliably communicate with surface equipment at the oilfield. | 12-10-2009 |
20090301734 | Downhole Application for a Backpressure Valve - A backpressure valve. The backpressure valve may be configured to maintain a substantially controlled pressure in bottom hole assembly while simultaneously being compatible with a pressure pulse tool downhole thereof. The backpressure valve includes pressure generating capacity below its internal valve assembly so as to avoid the tendency of the assembly to throttle open and closed. Furthermore, the pressure generation is achieved in a manner avoiding cavitation. As a result, once the backpressure valve is opened, the pressure pulse tool is able to reliably communicate with surface equipment at the oilfield. | 12-10-2009 |
20100186949 | Assembly for Controlled Delivery of Downhole Treatment Fluid - An assembly for delivery of treatment fluid at a target location downhole. The assembly is configured to avoid any substantial loss of treatment fluid in advance of reaching the target location in spite of low well pressure or a potentially excessive depth of the location. The assembly also allows for loading with treatment fluid from a downhole end thereof so as to avoid driving treatment fluid through the entirety of a tubular accommodating the assembly. The assembly may employ a spot valve to enhance filling with treatment fluid along with a backpressure valve coupled to the spot valve on-site so as to avoid premature loss of treatment fluid during a delivery application. | 07-29-2010 |
20100186967 | Assembly for Controlled Delivery of Downhole Treatment Fluid - An assembly for delivery of treatment fluid at a target location downhole. The assembly is configured to avoid any substantial loss of treatment fluid in advance of reaching the target location in spite of low well pressure or a potentially excessive depth of the location. The assembly also allows for loading with treatment fluid from a downhole end thereof so as to avoid driving treatment fluid through the entirety of a tubular accommodating the assembly. The assembly may employ a spot valve to enhance filling with treatment fluid along with a backpressure valve coupled to the spot valve on-site so as to avoid premature loss of treatment fluid during a delivery application. | 07-29-2010 |
20100206571 | METHOD AND APPARATUS FOR SETTING AN INFLATABLE PACKER IN A SUBHYDROSTATIC WELLBORE - An embodiment of an assembly for setting an inflatable packer within a wellbore comprises a coiled tubing, an inflatable packer to be set in a wellbore, a back pressure valve, and a drain valve operable to allow fluid flow therepast and prevent inadvertent inflation of the inflatable packer. | 08-19-2010 |
20110259611 | MECHANICALLY DEPLOYABLE WELL ISOLATION MECHANISM - A mechanism configured for mechanical self-deployment in a well. The mechanism may be primarily an open or closed-cell polymer foam positioned downhole in a pre-compressed state. Subsequently, the mechanism may be released from a housing for self-deployment and engagement with a wall of the well. Such a mechanism may serve the conventional purpose of a downhole packer or other similar restriction devices. Additionally, due to the self-deploying nature of the device, multiple such devices may be linked in series based upon user-determined criteria at the time of application. Thus, a reduction in the number of trips in the well may generally be realized. | 10-27-2011 |
20130186619 | METHOD AND APPARATUS OF DISTRIBUTED SYSTEMS FOR EXTENDING REACH IN OILFIELD APPLICATIONS - Apparatus and a method for delivering a rod in a cylinder including propagating a rod in a cylinder along the interior of the cylinder, and introducing a motion in an orientation orthogonal to a length of the rod, wherein the motion comprises multiple motion sources along the length of the rod, and wherein the multiple motion sources comprise a control system that controls at least one of the motion sources. An apparatus and method for delivering a rod in a cylinder including a cylinder comprising a deviated portion, a rod comprising a length within the cylinder, multiple motion sources positioned along the length of the rod, and a control system in communication with at least one of the motion sources, wherein the control system controls the location of frictional contact between the rod and cylinder over time. | 07-25-2013 |