Patent application number | Description | Published |
20090050322 | WIRELESS PERFORATING GUN INITIATION - A perforating system and method for wellbore perforating. The system comprises a perforating string having a perforating gun with shaped charges, a communication module for receiving detonation signals, and a controller associated with each perforating gun. The module receives surface signals for gun detonation and wirelessly transmits the signals to selected guns via the associated controllers. | 02-26-2009 |
20110172922 | Drop/Pump Memory Through-Casing Measurement Logging Tools - The present disclosure relates to apparatus and methods for evaluating an earth formation through a drillstring during tripping of the drillstring. The apparatus may include a logging instrument including a formation evaluation sensor configured to be dropped or pumped into a drillstring at the end of drilling. The logging instrument may be configured to make measurements through a homogenous portion of the drillstring while the drillstring is being tripped. The apparatus may include a memory and processor for logging data for later retrieval. The method may include making at least one measurement indicative of a property of an earth formation using a sensor operatively associated with a logging instrument, wherein the logging instrument is conveyed to proximate to a homogeneous portion of a drilling tubular using the drilling tubular. | 07-14-2011 |
20120010819 | APPARATUS AND METHOD FOR PULSED NEUTRON MEASUREMENT - A method of estimating at least one property of an earth formation includes: constructing a matrix model of a formation; constructing a shale model of the formation, the shale model including an estimation of a concentration of at least one trace element; combining the first model and the second model to generate a formation model; and comparing measured pulsed neutron data with the mixed model to estimate the at least one property. | 01-12-2012 |
20120056083 | Elemental Concentration Determination Using Neutron-Induced Activation Gamma Radiation - The present disclosure relates to borehole logging methods and apparatuses for estimating formation properties using nuclear radiation, particularly an apparatus and method for estimating amounts of silicon and/or oxygen in the formation using exposure time information. The method may include using nuclear radiation information from at least one nuclear radiation detector to estimate at least one parameter of interest. The method may also include reducing an error in the estimated formation properties due to speed variations of a nuclear radiation source that activates the silicon and oxygen in the formation. The apparatus may include at least one nuclear radiation detector. The apparatuses may include an information processing device to perform the methods. | 03-08-2012 |
20120059587 | APPARATUS AND METHOD FOR MEASURING DOWNHOLE FLUID COMPOSITION AND PROPERTIES - A method of estimating fluid composition in an earth formation includes: generating at least one pulsed neutron measurement by a pulsed neutron tool; estimating a pulsed neutron fluid saturation by analyzing the at least one pulsed neutron measurement via a pulsed neutron model of the earth formation, the pulsed neutron model including expected pulsed neutron measurements relative to selected fluid composition and properties; comparing the pulsed neutron fluid saturation to a reference fluid saturation estimated via a downhole tool; adjusting the pulsed neutron model to at least substantially eliminate a difference between the pulsed neutron fluid saturation and the reference fluid saturation by adjusting at least one of the selected fluid composition and the selected fluid properties; and estimating at least one of the fluid composition and the fluid properties based on the adjusted model. | 03-08-2012 |
20120059588 | Elemental Concentration Determination Using Neutron-Induced Activation Gamma Radiation - The present disclosure relates to borehole logging methods and apparatuses for estimating formation properties using nuclear radiation, particularly an apparatus and method for estimating amounts of silicon and/or oxygen in the formation. The method may include using nuclear radiation information from at least one nuclear radiation detector to estimate at least one parameter of interest. The method may include separating a gross nuclear radiation count into separate nuclear radiation components. The method may also include reducing an error in the estimated formation properties due to speed variations of a nuclear radiation source that activates the silicon and oxygen in the formation. The apparatus may include at least one nuclear radiation detector. The apparatuses may include an information processing device to perform the methods. | 03-08-2012 |
20120059589 | Water Saturation Determination Using an Oxygen Estimate and Formation Lithology - The present disclosure relates to borehole logging methods and apparatuses for estimating formation properties using nuclear radiation, particularly an apparatus and method for estimating amounts of silicon and/or oxygen in the formation. The present disclosure includes estimating a formation property using an oxygen estimate and at least a formation lithology. The method may include using nuclear radiation information from at least one nuclear radiation detector generate the oxygen estimate. The apparatus may include at least one nuclear radiation detector. The apparatuses may include an information processing device to perform the methods. | 03-08-2012 |
20120063268 | Simultaneous Ultrasonic Cross-Correlation and Transit Time Measurements for Multiphase Flow Rate Analysis - Pairs of acoustic transducers positioned at different radial distances in a conduit are used to measure travel times of acoustic signals in opposite directions and inclined to the direction of a fluid flow in the borehole. These contrapropagation measurements are used to estimate fluid velocity and volumetric flow rates of the fluid components in the conduit. | 03-15-2012 |
20120068060 | METHOD FOR THROUGH-CASING 3-PHASE SATURATION DETERMINATION - A method for estimating a parameter of interest of an earth formation having a fluid contained in pores of the earth formation, the method includes: conveying a carrier through a borehole penetrating the earth formation; irradiating the earth formation with neutrons from a neutron source disposed at the carrier; measuring radiation emitted from the earth formation resulting from the irradiating using at least one detector; calculating or determining a mathematical parameter from radiation measured by the at least one detector; predicting values of the mathematical parameter over a range of values of an earth formation property; and comparing the mathematical parameter to the predicted values to estimate the parameter of interest. | 03-22-2012 |
20120075953 | METHOD AND APPARATUS FOR EVALUATING A CEMENTED BOREHOLE CASING - A method of evaluating a cased borehole in an earth formation includes: emitting at least one acoustic signal into the borehole via an acoustic source and detecting a return acoustic signal via an acoustic sensor, the borehole including a casing and a casing support material disposed between the casing and a borehole wall; emitting a neutron flux via a neutron source into the borehole and detecting a radiation signal via a radiation detector, the radiation signal including induced gamma radiation resulting from neutron interactions; and identifying a casing support material characteristic based on the return acoustic signal and the radiation signal. | 03-29-2012 |
20120091329 | METHOD FOR HYDROCARBON SATURATION AND HYDRAULIC FRAC PLACEMENT - A method for estimating a property of an earth formation, the method includes: conveying a carrier through a borehole penetrating the earth formation; irradiating the formation with neutrons from a neutron source disposed at the carrier; detecting a first signal from the formation due to the irradiating using a first radiation detector, the first signal being related to a saturation of a fluid in the formation; detecting a second signal from an element in the formation due to the irradiating using a second radiation detector, the second signal being related to an element emitting the second signal in the formation; and estimating the property from the first signal and the second signal. | 04-19-2012 |
20130020075 | Pulsed Neutron Monitoring of Hydraulic Fracturing and Acid Treatment - Hydraulic fracturing, acidizing and polymer injection using coiled tubing are commonly used techniques in wellbore completion. A pulsed neutron tool may be conveyed at the bottom of the coiled tubing to monitor the effectiveness of these operations by measuring the flow velocity of the borehole fluid of the annulus between the pulsed neutron tool and the borehole wall. Gamma rays resulting from Oxygen activation and/or Σ measurements are used for measuring the flow velocity. | 01-24-2013 |
20150090871 | DOWNHOLE CEMENT EVALUTION USING PULSED NEUTRON MEASUREMENTS - Estimating cement voids in between a casing and a borehole wall of a borehole penetrating the earth formation includes forming with a computing device an actual ratio of radiation induced by a neutron source and measured by a first detector and a second detector when the tool is at two or more different locations in the borehole. A relationship between the actual ratio and the porosity at each of the two or more different locations is used and compared to two different cases of estimates of the ratio. Based on the comparison, an estimate of the cement voids at the two or more locations. | 04-02-2015 |
Patent application number | Description | Published |
20110282780 | METHOD AND SYSTEM FOR DETERMINING FEES AND FOREIGN EXCHANGE RATES FOR A VALUE TRANSFER TRANSACTION - A method for a value transfer operation includes determining a sender currency using the account information of the sender and a receiver currency using the BIN associated with the sender account. The method further includes determining a currency exchange rate, transaction fee, and currency markup fee based on the sender and receiver currencies and various attributes of the sender account and the receiver account. | 11-17-2011 |
20130339167 | Payment Processing For Qualified Transaction Items - Systems, methods, and apparatuses for providing a portable consumer device (e.g., a plastic card) that includes a coupon code and an account number (e.g., embedded on a magnetic stripe or a chip) where the portable consumer device is configured to apply a coupon to goods and services purchased at a merchant (e.g., store). Upon identifying the goods and services under a particular category specified by the coupon code (e.g., healthy food category), a user may pay for a predetermined portion (e.g., 50%) of the goods and services under the particular category using the portable consumer device. The user may pay for the remaining portion using a benefits card (e.g., state benefits card). As such, by allowing the user to pay for the predetermined portion using the portable consumer device, the user has incentive to purchase goods and services that fall under the particular category. | 12-19-2013 |