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| 20090120642 | METHODS TO ENHANCE GAS PRODUCTION FOLLOWING A RELATIVE-PERMEABILITY-MODIFIER TREATMENT - Provided embodiments relate to introducing a water-drainage-rate-enhancing agent into a subterranean formation to enhance gas production following a relative-permeability-modifier treatment to decrease undesired water production. An exemplary embodiment provides a method of treating a subterranean formation such that initiation of gas production is enhanced following the treatment, the method comprising: introducing a relative-permeability modifier into at least a portion of the subterranean formation such that the relative-permeability modifier reduces permeability of the portion to aqueous fluids; and introducing a water-drainage-rate-enhancing agent into at least a portion of the subterranean formation. Another exemplary embodiment provides a treatment fluid comprising a carrier fluid, a relative-permeability modifier, and a water-drainage-rate-enhancing agent. | 05-14-2009 |
| 20090253594 | Methods for placement of sealant in subterranean intervals - Of the many methods provided herein, one method includes a method of treating an interval of a subterranean formation having a permeability that varies comprising: identifying the interval to be treated; introducing a relative-permeability modifier into the interval, wherein the relative-permeability modifier modifies the interval to have a more uniform effective permeability to water, wherein the relative permeability modifier comprises a water-soluble polymer; and introducing a sealant into the interval, wherein the more uniform effective permeability of the interval allows for a more uniform treatment of the interval by the than would be allowed without treatment of the interval with the relative-permeability modifier. | 10-08-2009 |
| 20090294126 | Methods of limiting or preventing fluid flow through a portion of a subterranean formation - A method of limiting or preventing fluid flow through a portion of a subterranean formation is provided. The method comprises the steps of: (a) forming a treatment fluid comprising: (i) a water-swellable, water-insoluble elastomer in the form of discrete particles, wherein the particles of the water-swellable, water-insoluble elastomer have a characteristic of being capable of sticking together to form an agglomeration when exposed to water; and (ii) a carrier fluid for the water-swellable, water-insoluble elastomer; and (b) injecting the treatment fluid through a well into the subterranean formation to deposit the discrete particles of the water-swellable, water-insoluble elastomer in the subterranean formation. | 12-03-2009 |
| 20100116498 | Methods for Placement of Sealant in Subterranean Intervals - Of the many methods provided herein, one method includes a method of treating an interval of a subterranean formation having a permeability that varies comprising: identifying the interval to be treated; introducing a relative-permeability modifier into the interval, wherein the relative-permeability modifier modifies the interval to have a more uniform effective permeability to water, wherein the relative permeability modifier comprises a water-soluble polymer; and introducing a sealant into the interval, wherein the more uniform effective permeability of the interval allows for a more uniform treatment of the interval by the than would be allowed without treatment of the interval with the relative-permeability modifier. | 05-13-2010 |
| 20110034351 | Hydrophobically and Cationically Modified Relative Permeability Modifiers and Associated Methods - Methods and compositions including a method comprising introducing a hydrophobically and cationically modified relative permeability modifier into a portion of a subterranean formation, wherein the hydrophobically and cationically modified relative permeability modifier comprises a hydrophilic polymer backbone with a hydrophobic modification and a cationic modification. | 02-10-2011 |
| 20110077323 | Compositions for Plugging and Sealing a Subterranean Formation - Compositions for treating a subterranean formation comprising a water-swellable agent and a sealing agent are described. Preferably, the water-swellable agent is a dehydrated polymer that forms a three-dimensional gel structure in water wherein the gel structure is a continuous mass both inside and outside the water-swellable agent. The sealing agent comprises a non-acidic ethylenically unsaturated polar monomer; a copolymerisable ethylenically unsaturated ester; and at least one organic gelling agent. | 03-31-2011 |
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| 20110214865 | WEAK ORGANIC ACID AS GELATION RETARDER FOR CROSSLINKABLE POLYMER COMPOSITIONS - According to one embodiment, a treatment fluid for a well includes: (a) a water-soluble polymer, wherein the water-soluble polymer comprises a polymer of at least one non-acidic ethylenically unsaturated polar monomer; (b) an organic crosslinker comprising amine groups, wherein the organic crosslinker is capable of crosslinking the water-soluble polymer; (c) a weak organic acid; and (d) water; wherein the treatment fluid is a crosslinkable polymer composition. According to another embodiment, a method for blocking the permeability of a portion of a subterranean formation penetrated by a wellbore is provided, the method including the steps of: (a) selecting the portion of the subterranean formation to be treated; (b) selecting estimated treatment conditions, wherein the estimated treatment conditions comprise temperature over a treatment time; (c) forming a treatment fluid that is a crosslinkable polymer composition comprising: (i) a water-soluble polymer, wherein the water-soluble polymer comprises a polymer of at least one non-acidic ethylenically unsaturated polar monomer; (ii) an organic crosslinker comprising amine groups, wherein the organic crosslinker is capable of crosslinking the water-soluble polymer; (iii) a weak organic acid; and (iv) water; (d) selecting the water-soluble polymer, the crosslinker, the weak organic acid, and the water, and the proportions thereof, such that the gelation time of the treatment fluid is at least 1 hour when tested under the estimated treatment conditions; and (e) injecting the treatment fluid through the wellbore into the portion of the subterranean formation. | 09-08-2011 |
| 20110214866 | SALT OF WEAK BRONSTED BASE AND BRONSTED ACID AS GELATION RETARDER FR CROSSLINKABLE POLYMER COMPOSITIONS - According to one embodiment, a treatment fluid for a well includes: (a) a water-soluble polymer, wherein the water-soluble polymer comprises a polymer of at least one non-acidic ethylenically unsaturated polar monomer; (b) an organic crosslinker comprising amine groups, wherein the organic crosslinker is capable of crosslinking the water-soluble polymer; (c) a salt of a weak Bronsted base and a Bronsted acid; and (d) water; wherein the treatment fluid is a crosslinkable polymer composition. According to another embodiment, a method for blocking the permeability of a portion of a subterranean formation penetrated by a wellbore is provided, the method including the steps of: (a) selecting the portion of the subterranean formation to be treated; (b) selecting estimated treatment conditions, wherein the estimated treatment conditions comprise temperature over a treatment time; (c) forming a treatment fluid that is a crosslinkable polymer composition comprising: (i) a water-soluble polymer, wherein the water-soluble polymer comprises a polymer of at least one non-acidic ethylenically unsaturated polar monomer; (ii) an organic crosslinker comprising amine groups, wherein the organic crosslinker is capable of crosslinking the water-soluble polymer; (iii) a salt of a weak Bronsted base and a Bronsted acid; and (iv) water; (d) selecting the water-soluble polymer, the crosslinker, the salt of a weak Bronsted base and a Bronsted acid, and the water, and the proportions thereof, such that the gelation time of the treatment fluid is at least 1 hour when tested under the estimated treatment conditions; and (e) injecting the treatment fluid through the wellbore into the portion of the subterranean formation. | 09-08-2011 |
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| 20090068037 | Hermetically Sealed Motor Lead Tube - An electrical submersible pump assembly has a motor cooperatively engaged with a pump for driving the pump and a motor lead extending to the motor for supplying power to the motor. The motor lead has an electrical conductor enclosed within a tube. The tube is sealed from an exterior environment of the motor and contains a dielectric fluid. The motor may be filled with a dielectric lubricant and the interior of the tube of the motor lead may be in fluid communication with the dielectric lubricant. Alternatively, the motor may filled with a dielectric lubricant and the dielectric fluid within the interior of the tube of the motor lead may be sealed from the dielectric lubricant. | 03-12-2009 |
| 20100096161 | Downhole Cable With Thermally Conductive Polymer Composites - A cable for transmitting electricity for use with an electric submersible pump has a plurality of conductors for conducting electricity along the length of the cable. A first layer of insulation surrounds each of the conductors. A jacket, or second layer of insulation, surrounds all of the conductors and the first layer of insulation. Both the first layer of insulation and the jacket insulation are comprised of an polymeric compound. At least one of the insulation layers has filler material dispersed therein, the filler material having a higher level of thermal conductivity than the insulation layer it is contained in. | 04-22-2010 |
| 20100186990 | High Voltage Electric Submersible Pump Cable - A cable for transmitting high voltage electricity for use with an electric submersible pump has a plurality of solid conductors for conducting electricity along the length of the cable. The solid conductors are uniformly and firmly bonded to the surrounding insulation with a thin bonding layer applied directly over the conductor. A layer of conductive fabric tape surrounds the insulation to form an outer stress control layer. The insulated conductors are surrounded by an extruded layer of lead. A second layer of fabric tape surrounds the lead. An armored outer layer surrounds the insulated conductors and the lead. Space between the insulated and wrapped conductors and the armored outer layer is filled with a jacket material. | 07-29-2010 |
| 20110150685 | Stator to Housing Lock in a Progressing Cavity Pump - A reinforcing interface between the stator and its housing in a progressing cavity pump is created from ribs extending inwardly into the stator from the housing inner wall that can be longitudinally oriented or spirally oriented. Alternatively, the housing wall can have grooves into the inner wall that are made more bulbous further into the housing wall from the groove inlets so that when filled with stator material a long and continuous grip is obtained with either the wall groove embodiment or the internal rib embodiment. | 06-23-2011 |
