Patent application number | Description | Published |
20110252781 | Prevention, Actuation and Control of Deployment of Memory-Shape Polymer Foam-Based Expandables - Actuation and control of the deployment of a polymeric memory-shape material on a wellbore device on a downhole tool may be accomplished by treating a compacted or compressed polymeric memory-shape material with a deployment fluid to lower its T | 10-20-2011 |
20110259587 | APPARATUS AND METHOD FOR SEALING PORTIONS OF A WELLBORE - An apparatus for controlling fluid flow in a borehole in an earth formation includes: a carrier configured to be deployed in the borehole; and a shape memory device disposed at the carrier, the shape memory device including a shape memory material having a glass transition temperature, the shape memory material configured to modify the glass transition temperature to a temperature lower than a borehole temperature in response to a trigger, and change from a glass state to a rubber state in response to the borehole temperature to prevent fluid flowing through the shape memory device. | 10-27-2011 |
20120273229 | METHOD OF MAKING AND USING A FUNCTIONALLY GRADIENT COMPOSITE TOOL - A method of making a composite downhole article is disclosed. The method include forming at least one corrodible core member comprising a first material that is corrodible in a wellbore fluid at a first corrosion rate; and disposing at least one outer member on the core member, the outer member comprising a second material that is corrodible in the wellbore fluid at a second corrosion rate, wherein the corrodible core member has a composition gradient or a density gradient, or a combination thereof, and wherein the first corrosion rate is substantially greater than the second corrosion rate. A method of using a composite downhole article is also disclosed. The method includes forming a composite downhole article as described above; using the article to perform a first wellbore operation; exposing the article to the wellbore fluid; and selectively corroding the second corrodible member. | 11-01-2012 |
20120276356 | FUNCTIONALLY GRADIENT COMPOSITE ARTICLE - A composite downhole article is disclosed. The article is selectively corrodible in a wellbore fluid. The article includes at least one corrodible core member comprising a first material that is corrodible in a wellbore fluid at a first corrosion rate. The article also includes at least one outer member disposed on the core member and comprising a second material that is corrodible in the wellbore fluid at a second corrosion rate, wherein the corrodible core member has a composition gradient or a density gradient, or a combination thereof, and wherein the first corrosion rate is substantially greater than the second corrosion rate. | 11-01-2012 |
20130029886 | METHOD OF CONTROLLING THE CORROSION RATE OF ALLOY PARTICLES, ALLOY PARTICLE WITH CONTROLLED CORROSION RATE, AND ARTICLES COMPRISING THE PARTICLE - A composite particle comprises a core, a shielding layer deposited on the core, and further comprising an interlayer region formed at an interface of the shielding layer and the core, the interlayer region having a reactivity less than that of the core, and the shielding layer having a reactivity less than that of the interlayer region, a metallic layer not identical to the shielding layer and deposited on the shielding layer, the metallic layer having a reactivity less than that of the core, and optionally, an adhesion metal layer deposited on the metallic layer. | 01-31-2013 |
20130032357 | METHOD OF CONTROLLING CORROSION RATE IN DOWNHOLE ARTICLE, AND DOWNHOLE ARTICLE HAVING CONTROLLED CORROSION RATE - A method of removing a downhole assembly comprises contacting, in the presence of an electrolyte, a first article comprising a first material and acting as an anode, and a second article comprising a second material having a lower reactivity than the first material and acting as a cathode, the downhole assembly comprising the first article in electrical contact with the second article, wherein at least a portion of the first article is corroded in the electrolyte. | 02-07-2013 |
20130126170 | Prevention, Actuation and Control of Deployment of Memory-Shape Polymer Foam-Based Expandables - Actuation and control of the deployment of a polymeric memory-shape material on a wellbore device on a downhole tool may be accomplished by treating a compacted or compressed polymeric memory-shape material with an optional deployment fluid to lower its T | 05-23-2013 |
20140027116 | POLYMER NANOCOMPOSITE, PROCESS FOR MAKING AND USE OF SAME - A process for stabilizing particles includes disposing reactive nanoparticles in a borehole; contacting the reactive nanoparticles with a resin; introducing a curing agent; and curing the resin and reactive nanoparticles with the curing agent to form a nanocomposite, wherein, during curing, the nanocomposite is bonded to the particles to stabilize the particles. A process for consolidating particles includes coating the particles with a resin; introducing reactive nanoparticles; curing the resin and reactive nanoparticles with a curing agent to form a nanocomposite which is bonded to the particles; and controlling a rate of the curing by an amount of the curing agent which is present with the resin, wherein the nanocomposite bonded to the particles is thermally stable up to at least 600° F. (315° C.). A system comprises a resin; reactive nanoparticles; a curing agent to form a nanocomposite; and particles disposed in a downhole location to which the nanocomposite binds. | 01-30-2014 |
20140131050 | METHOD OF MAKING AND USING A FUNCTIONALLY GRADIENT COMPOSITE TOOL - A method of making a composite downhole article is disclosed. The method include forming at least one removable core member comprising a first metallic material that is removable in a wellbore fluid at a first removal rate; and disposing at least one outer member on the core member, the outer member comprising a second material that is removable in the wellbore fluid at a second removal rate, wherein the removable core member has a composition gradient or a density gradient, or a combination thereof, and wherein the first removal rate is substantially greater than the second removal rate. A method of using a composite downhole article is also disclosed. The method includes forming a composite downhole article as described above; using the article to perform a first wellbore operation; exposing the article to the wellbore fluid; and selectively removing the second removable member. | 05-15-2014 |
20150065401 | FUNCTIONALLY GRADIENT COMPOSITE ARTICLE - A composite downhole article is disclosed. The article is selectively corrodible in a wellbore fluid. The article includes at least one corrodible core member comprising a metallic first material that is corrodible in a wellbore fluid at a first corrosion rate. The article also includes at least one outer member disposed on the core member and comprising a second material that is corrodible in the wellbore fluid at a second corrosion rate, wherein the corrodible core member has a composition gradient or a density gradient, or a combination thereof, and wherein the first corrosion rate is substantially greater than the second corrosion rate. | 03-05-2015 |