Patent application number | Description | Published |
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 |
20100101804 | 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. | 04-29-2010 |
20110277585 | STROKE-CONTROLLING DEVICE AND METHOD - A stroke-controlling device includes a first body having a first surface and a second body movably engaged with the first body having a second surface. A dimension between the first surface and the second surface is configured to engage a tool. And at least one dog is in operable communication with the first body and the second body to maintain the dimension at a first value when in a first position and to limit reduction of the dimension to a second value when in to a second position. | 11-17-2011 |
20130175040 | Dual Inline Sliding Sleeve Valve - A sliding sleeve device features a first sleeve that can be shifted with a dropped object on a seat and applied pressure to open a housing port. A second sleeve is in line with the first sleeve and be shifted to straddle the housing ports that we exposed when the opening sleeve was shifted initially. Snap rings or other locking devices can be used to hold the closing sleeve in the shifted position with the housing ports closed. The closing sleeve can also be shifted with a shifting tool that is run for example on coiled tubing. The opening sleeve can also optionally be shifted with a tool in an uphole direction to open the housing ports. | 07-11-2013 |
20130175053 | DOWNHOLE PLUG DROP TOOL - A plug drop tool, including a body defining a chamber, a plug initially housed in the chamber and a member disposed with the body. The member is actuatable for selectively enabling communication between the chamber and an annulus at least partially defined by the body. The plug is movable into the annulus when the communication is enabled. | 07-11-2013 |
20130199800 | WIPER PLUG ELEMENTS AND METHODS OF STIMULATING A WELLBORE ENVIRONMENT - Methods for preparing a wellbore casing for stimulation operations comprise the steps of cementing a wellbore casing in a wellbore, the wellbore casing having a downhole tool comprising a valve and an apparatus for restricting fluid flow through the valve, such as a ball seat, disposed above the valve. Actuation of the valve opens the valve to establish fluid communication between the wellbore casing and the formation. A plug element is disposed on a seat of the ball seat and a casing pressure test is performed. The plug element then dissolves or disintegrates over time increasing fluid communication between the wellbore casing and the formation, thereby preparing the wellbore casing for stimulation operations without additional wellbore intervention after the casing pressure test. In certain embodiments, during or after dissolution of the plug element, clean-out of the bore of the valve is performed by the plug element. | 08-08-2013 |
20140102703 | Pressure Actuated Ported Sub for Subterranean Cement Completions - A shifting sleeve has differential piston areas so that applied pressure displaces the sleeve against spring bias, which preferably is a series of Belleville washer stacks associated with modular mandrel components, to obtain the desired opposing force to the movement initiated with pressure applied to differential piston areas. An indexing feature is located between the sleeve and the mandrel passage wall and on a predetermined number of cycles disables the Belleville washer stacks from biasing the sleeve in an opposed direction as when pressure is applied. At this time the pressure in the mandrel acting on the differential piston area simply shifts the sleeve to open a lateral port so that fracturing through the cement that was earlier placed with the port closed can take place. | 04-17-2014 |
20140262251 | Method for Inducing and Further Propagating Formation Fractures - Fractures are induced from lobe shaped inflatable members disposed at different axial locations along a string with frac ports in the circumferential gaps between the lobes. The lobes are inflated by landing a ball on a seat on a sleeve that is initially shifted enough to expose a fill port on each lobe. The lobes are inflated to a pressure that initiates fractures in the formation as the lobes extend. Further raising the pressure induces the sleeve to move a second time to open frac ports. The annulus can be cemented and fracturing can penetrate the cement to further propagate the initiated fractures from lobe inflation. The process is repeated at different levels until the zone of interest is completed. Sensors can relay information by telemetry techniques as to the onset of fractures or other well conditions. The sleeve for the frac ports can be moved in a variety of ways without intervention tools. | 09-18-2014 |
Patent application number | Description | Published |
20140036267 | OPTICAL TECHNIQUE FOR CHEMICAL AND BIOCHEMICAL ANALYSIS - Structures and methods are described for optical detection of physical, chemical and/or biological samples. An optical detection structure may include a LED source, multiple filters and single or multiple sample areas. A detector may be used to record a fluorescence signal. The sample area may allow the introduction of removable cartridges. | 02-06-2014 |
20140057210 | METHODS OF FABRICATION OF CARTRIDGES FOR BIOLOGICAL ANALYSIS - Methods to fabricate reaction cartridges for biological sample preparation and analysis are disclosed. A cartridge may have a reaction chamber and openings to allow fluids to enter the chamber. The cartridge may also have handles to facilitate its use. Such cartridges may be used for polymerase chain reaction. | 02-27-2014 |
20140127796 | INSTRUMENTS FOR BIOLOGICAL SAMPLE-TO-ANSWER DEVICES - Methods and devices for biological sample preparation and analysis are disclosed. A device may have a linear or circular arrangement of containers, with a connecting structure such as a bar or disk. Fluidics channels between containers allow the performance of different techniques for sample preparation, such as lysing, washing and elution. Different functional elements, such as grinders or mixers, may be attached to the containers. | 05-08-2014 |
20140213471 | CHROMOPHORE-BASED CHARACTERIZATION AND DETECTION METHODS - This disclosure provides methods, compositions and kits for the detection of a plurality of analytes in a sample. In some examples, this disclosure provides methods, compositions, and kits for detecting analytes, genetic variations, monitoring reaction process, and monitoring analyte-analyte interactions by measuring signals. In some examples, the presence of signals or changes in signals may be used to construct signal profiles which can be used to detect analytes. | 07-31-2014 |
Patent application number | Description | Published |
20140038195 | MULTIPLEXING AND QUANTIFICATION IN PCR WITH REDUCED HARDWARE AND REQUIREMENTS - Methods and algorithms for a multiplexed single detection channel amplification process and quantification of generated amplicons is presented. Various mathematical approaches for quantifying and verifying the amplicons in a reaction are presented. Usage of such methods and approaches allow upgrading of existing single and multiple channel instruments for further multiplexing capabilities. | 02-06-2014 |
20140057277 | DEVICES AND METHODS FOR BIOLOGICAL SAMPLE PREPARATION - Methods and devices for biological sample preparation and analysis are disclosed. A device may have a linear or circular arrangement of containers, with a connecting structure such as a bar or disk. Fluidics channels between containers allow the performance of different techniques for sample preparation, such as lysing, washing and elution. Different functional elements, such as grinders or mixers, may be attached to the containers. | 02-27-2014 |
20140057278 | PEN-SHAPED DEVICE FOR BIOLOGICAL SAMPLE PREPARATION AND ANALYSIS - Methods and devices for biological sample preparation and analysis are disclosed. A device may have a circular arrangement of containers, with a connecting structure such as a disk. Fluidics channels between containers allow the performance of different techniques for sample preparation, such as lysing, washing and elution. The device may be pen-shaped and have a sample drawing needle connected to the containers. | 02-27-2014 |
20140057279 | DEVICES AND METHODS FOR BIOLOGICAL SAMPLE-TO-ANSWER AND ANALYSIS - Methods and devices for biological sample preparation and analysis are disclosed. A device may have a linear or circular arrangement of containers, with a connecting structure such as a bar or disk. Fluidics channels between containers allow the performance of different techniques for sample preparation, such as lysing, washing and elution. Different functional elements, such as grinders or mixers, may be attached to the containers. The device may have a reaction cartridge with a reaction chamber to perform techniques such as polymerase chain reaction. | 02-27-2014 |
20140127790 | INSTRUMENTS FOR BIOLOGICAL SAMPLE PREPARATION DEVICES - Methods and devices for biological sample preparation and analysis are disclosed. A device may have a linear or circular arrangement of containers, with a connecting structure such as a bar or disk. Fluidics channels between containers allow the performance of different techniques for sample preparation, such as lysing, washing and elution. Different functional elements, such as grinders or mixers, may be attached to the containers. | 05-08-2014 |