| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 61 | Methods and apparatus for collecting and preserving core samples from a reservoir | US15791988 | 2017-10-24 | US10060215B2 | 2018-08-28 | Anuj Gupta; Daniel T Georgi; Katherine L. Hull |
| Provided herein are methods and apparatus for collecting and preserving core samples from a reservoir. In some embodiments, a method includes obtaining core samples from a reservoir using a rock and fluid sampling tool and depositing the core samples in a vessel filled with a hydrogen-free fluid such that a portion of the hydrogen-free fluid is displaced by the core samples and the core samples are immersed in the hydrogen-free fluid. The method also includes transferring a gas into the vessel to occupy a space in the vessel and sealing the vessel via a cap on an end of the vessel. Methods of analyzing the core samples core samples collected from a reservoir and a rock and fluid sampling tool are also provided. | ||||||
| 62 | EFFECTIVE POROSITY DETERMINATION FOR TIGHT GAS FORMATIONS | US15104509 | 2015-01-13 | US20180163535A1 | 2018-06-14 | Luis F. Quintero; Donald Westacott |
| A disclosed effective porosity determination method for tight gas formations includes: obtaining a core sample sealed in a pressure-maintaining core vault during transport out of the borehole; coupling the core vault to a collection chamber; based at least in part on measured pressure, temperature, and fluid volumes in the collection chamber, deriving the number of moles of gas retrieved with the core sample; and combining the number of moles with a downhole pressure, a downhole temperature, and a downhole core sample volume to determine an effective porosity of the tight gas formation. A system embodiment includes: a coring tool having a core vault with a seal to provide pressure-preserved transport of a core sample from a tight gas formation; a collection chamber that attaches to the core vault to measure volumes of fluids and gas; and a processing unit that responsively determines an effective porosity of the tight gas formation. | ||||||
| 63 | Device and method for extracting a sample while maintaining a pressure that is present at the sample extraction location | US14354457 | 2012-10-24 | US09976369B2 | 2018-05-22 | Tobias Rothenwaender; David Wunsch; Erik Anders; Martin Rothfuss; Benjamin Arnold; Alexander Schulze |
| A round-trip autoclave sample-extracting device for extracting a sample at a sample extraction location of a geological formation, the device includes a self-closing pressure chamber module for receiving the sample. The pressure chamber module is connected to a lifting module in order to lift the sample into the pressure chamber module in one sampling stroke. The round-trip autoclave sample-extracting device has a triggering module and a pressure regulating module, the triggering module acting on the lifting module in order to trigger the sampling stroke, and the pressure regulating module is coupled to the pressure chamber module at least on the pressure side after the sampling stroke in order to influence a pressure in the pressure chamber module. A round-trip method is proposed which includes a first trip and at least one second trip for extracting a sample while maintaining a pressure that is present at the sample extraction location. | ||||||
| 64 | Cleaning and separating fluid and debris from core samples and coring systems | US14899065 | 2015-07-30 | US09951574B2 | 2018-04-24 | Donald Clifford Westacott; Matthew L. Lee |
| Coring tools including a core tube assembly; a carrier chamber defined within the core tube assembly for storing one or more core samples drilled from a downhole formation having a wellbore fluid therein, wherein the wellbore fluid has a wellbore fluid density; a non-hydrocarbon, non-reactive heavy weight fluid (“HWF”) present within the carrier chamber, the HWF exhibiting a HWF density of about 2 pounds per gallon greater than the wellbore fluid density; a pressure housing cover selectively rotatable between (1) an open position, where the one or more core samples are able to be inserted into the carrier chamber, and (2) a closed position, where the carrier chamber is sealed; and a cover activation mechanism coupled to the core tube assembly and operable to move the pressure housing cover between the closed position and the open position. | ||||||
| 65 | Methods and Apparatus for Collecting and Preserving Core Samples from a Reservoir | US15791993 | 2017-10-24 | US20180058163A1 | 2018-03-01 | Anuj Gupta; Daniel T. Georgi; Katherine L. Hull |
| Provided herein are methods and apparatus for collecting and preserving core samples from a reservoir. In some embodiments, a method includes obtaining core samples from a reservoir using a rock and fluid sampling tool and depositing the core samples in a vessel filled with a hydrogen-free fluid such that a portion of the hydrogen-free fluid is displaced by the core samples and the core samples are immersed in the hydrogen-free fluid. The method also includes transferring a gas into the vessel to occupy a space in the vessel and sealing the vessel via a cap on an end of the vessel. Methods of analyzing the core samples core samples collected from a reservoir and a rock and fluid sampling tool are also provided. | ||||||
| 66 | Methods and Apparatus for Collecting and Preserving Core Samples from a Reservoir | US15791988 | 2017-10-24 | US20180045008A1 | 2018-02-15 | Anuj Gupta; Daniel T. Georgi; Katherine L. Hull |
| Provided herein are methods and apparatus for collecting and preserving core samples from a reservoir. In some embodiments, a method includes obtaining core samples from a reservoir using a rock and fluid sampling tool and depositing the core samples in a vessel filled with a hydrogen-free fluid such that a portion of the hydrogen-free fluid is displaced by the core samples and the core samples are immersed in the hydrogen-free fluid. The method also includes transferring a gas into the vessel to occupy a space in the vessel and sealing the vessel via a cap on an end of the vessel. Methods of analyzing the core samples core samples collected from a reservoir and a rock and fluid sampling tool are also provided. | ||||||
| 67 | Apparatus and method for storing core samples at high pressure | US14369543 | 2012-12-21 | US09874063B2 | 2018-01-23 | Abbas Arian; Bruce Mackay; Michael Pelletier; Michael Malone; Wade Samec |
| A sampling tool to sample core samples from a wellbore is disclosed. A core sampling storage module includes a pressure housing to store a plurality of core samples, a core tube within the pressure housing, the core tube to store a plurality of core samples drilled from a downhole formation, a pressure housing cover that is configured to be selectively rotated to an open position or a closed position, an activation mechanism to receive a command, and based on the command, open or close the pressure housing cover, a push rod to selectively install a plug to cover the core tube, wherein when the plug is installed the pressure housing maintains a pressure. | ||||||
| 68 | Coring tools and methods for making coring tools and procuring core samples | US14330628 | 2014-07-14 | US09765585B2 | 2017-09-19 | Christoph Wesemeier; Thomas Uhlenberg |
| Methods of procuring a core sample may involve engaging an earth formation with a cutting structure of a coring bit. A core sample may be received within a receptacle connected to the coring bit, the receptacle being lined with a sponge material. A space of about 1 mm or less may be maintained between the core sample and the sponge material. Coring tools may include a coring bit comprising an inner gage and an outer gage and a sponge material positioned to at least partially surround a core sample cut by the coring bit. A radial distance between an inner surface of the sponge material and the inner gage of the coring bit may be about 1 mm or less. A distance between a center of curvature of the inner gage and a center of curvature of the outer gage may be about 0.3 mm or less. | ||||||
| 69 | CORING TOOLS EXHIBITING REDUCED ROTATIONAL ECCENTRICITY AND RELATED METHODS | US15430673 | 2017-02-13 | US20170152714A1 | 2017-06-01 | Christian Fulda; Thomas Uhlenberg; Christoph Wesemeier |
| Coring tools configured to procure core samples of earth formations may include a coring bit comprising a cutting structure configured to cut a core sample and an outer barrel connected to the coring bit. The outer barrel may be configured to apply axial and rotational force to the coring bit. An inner barrel may be located within the outer barrel and may be configured to receive a core sample within the inner barrel. A sponge material may line an inner surface of the inner barrel and may be configured to absorb a fluid from the core sample. A stabilizer may be connected to the outer barrel. A distance between the stabilizer and an upper extent of the coring bit may be less than 30 feet. | ||||||
| 70 | Methods and Apparatus for Collecting and Preserving Core Samples from a Reservoir | US15280368 | 2016-09-29 | US20170089158A1 | 2017-03-30 | Anuj Gupta; Daniel T. Georgi; Katherine L. Hull |
| Provided herein are methods and apparatus for collecting and preserving core samples from a reservoir. In some embodiments, a method includes obtaining core samples from a reservoir using a rock and fluid sampling tool and depositing the core samples in a vessel filled with a hydrogen-free fluid such that a portion of the hydrogen-free fluid is displaced by the core samples and the core samples are immersed in the hydrogen-free fluid. The method also includes transferring a gas into the vessel to occupy a space in the vessel and sealing the vessel via a cap on an end of the vessel. Methods of analyzing the core samples core samples collected from a reservoir and a rock and fluid sampling tool are also provided. | ||||||
| 71 | Coring tools exhibiting reduced rotational eccentricity and related methods | US14328318 | 2014-07-10 | US09567813B2 | 2017-02-14 | Christian Fulda; Thomas Uhlenberg; Christoph Wesemeier |
| Coring tools configured to procure core samples of earth formations may include a coring bit comprising a cutting structure configured to cut a core sample and an outer barrel connected to the coring bit. The outer barrel may be configured to apply axial and rotational force to the coring bit. An inner barrel may be located within the outer barrel and may be configured to receive a core sample within the inner barrel. A sponge material may line an inner surface of the inner barrel and may be configured to absorb a fluid from the core sample. A stabilizer may be connected to the outer barrel. At least one blade of the stabilizer may be rotatable with respect to the outer barrel and may be configured to remain at least substantially rotationally stationary relative to the earth formation during coring. | ||||||
| 72 | CORING TOOLS EXHIBITING REDUCED ROTATIONAL ECCENTRICITY AND RELATED METHODS | US14328318 | 2014-07-10 | US20160010401A1 | 2016-01-14 | Christian Fulda; Thomas Uhlenberg; Christoph Wesemeier |
| Coring tools configured to procure core samples of earth formations may include a coring bit comprising a cutting structure configured to cut a core sample and an outer barrel connected to the coring bit. The outer barrel may be configured to apply axial and rotational force to the coring bit. An inner barrel may be located within the outer barrel and may be configured to receive a core sample within the inner barrel. A sponge material may line an inner surface of the inner barrel and may be configured to absorb a fluid from the core sample. A stabilizer may be connected to the outer barrel. At least one blade of the stabilizer may be rotatable with respect to the outer barrel and may be configured to remain at least substantially rotationally stationary relative to the earth formation during coring. | ||||||
| 73 | Core Drilling Components and Methods | US14721972 | 2015-05-26 | US20150368993A1 | 2015-12-24 | Ian Richard Fournier; Matthew Taws; Jacques Picard |
| The present invention provides a drilling tower having a rod handling tower allowing for the retrieval of rods from a rod rack system in an automated manner. The present invention also provides a method to deliver and install a core drilling platform in a remote area and its removal by air. The present invention also provides a cold box assembly for the storage of core drilling samples. | ||||||
| 74 | CORE SAMPLING APPARATUS AND CONTAINER TRANSFER APPARATUS | US13863696 | 2013-04-16 | US20140262532A1 | 2014-09-18 | Yasuhiko MIZUGUCHI |
| Provided is a core sampling apparatus which maintains the internal pressure after the core drilling.The core sampling apparatus includes a barrel part, a container which is movably disposed in the barrel part and maintains the sampled core, a ball valve to prevent a fluid from inflowing and outflowing between an inside and an outside of the barrel part in a closed state thereof, a first seal member which seals a space between the barrel part and the ball valve, a second seal member which seals a space between the container and the barrel part, a locking mechanism which locks a state in which the ball valve is sealed by the first seal member, and an inflowing mechanism configured to inflow the fluid only in a direction to an internal space of the closed barrel part by the first seal member and the second seal member. | ||||||
| 75 | DEVICE AND METHOD FOR REMOVING A SUPERNATANT OF A LIQUID SAMPLE, AND USE OF A VALVE DEVICE HAVING A SOLUBLE MEMBRANE | US14006992 | 2012-03-23 | US20140112841A1 | 2014-04-24 | Christian Schoen; Tanja Thiele |
| A device and a method for separating a supernatant of a liquid sample are proposed, in which an outlet is closed off by a water-soluble membrane that dissolves after a certain length of time so that the supernatant of the sample is automatically drained away after centrifugation. The water-soluble membrane may in principle may also be used for other purposes for temporarily retaining a liquid in a holding chamber. | ||||||
| 76 | Obtaining And Evaluating Downhole Samples With A Coring Tool | US14095271 | 2013-12-03 | US20140090893A1 | 2014-04-03 | Lennox Reid; Anthony R.H. Goodwin; Peter S. Hegeman; Charles Woodburn |
| Samples of hydrocarbon are obtained with a coring tool. An analysis of some thermal or electrical properties of the core samples may be performed downhole. The core samples may also be preserved in containers sealed and/or refrigerated prior to being brought uphole for analysis. The hydrocarbon trapped in the pore space of the core samples may be extracted from the core samples downhole. The extracted hydrocarbon may be preserved in chambers and/or analyzed downhole. | ||||||
| 77 | Small core generation and analysis at-bit as LWD tool | US13096484 | 2011-04-28 | US08499856B2 | 2013-08-06 | Sunil Kumar |
| The present disclosure is related to an apparatus for taking a sample in a wellbore during drilling operations. The apparatus may include a drill bit configured to form a core and at least one retractable cutter internal to the drill bit for taking the sample from the core. The apparatus may also include equipment for analyzing the sample, extracting fluid from the sample, testing fluid from the sample, encapsulating the sample, and/or tagging the sample. The present disclosure is also related to a method for taking a core sample without interrupting drilling operations. The method includes taking a core sample using a drill bit configured to take a core sample using internal cutters. The method may also include analyzing the sample, extracting fluid from the sample, analyzing fluid from the sample, encapsulating the sample, and/or tagging the sample. | ||||||
| 78 | Small Core Generation and Analysis At-Bit as LWD Tool | US13096452 | 2011-04-28 | US20120012392A1 | 2012-01-19 | Sunil Kumar |
| The present disclosure is related to an apparatus for taking a sample in a wellbore during drilling operations. The apparatus may include a drill bit configured to form a core and at least one retractable cutter internal to the drill bit for taking the sample from the core. The apparatus may also include equipment for analyzing the sample, extracting fluid from the sample, testing fluid from the sample, encapsulating the sample, and/or tagging the sample. The present disclosure is also related to a method for taking a core sample without interrupting drilling operations. The method includes taking a core sample using a drill bit configured to take a core sample using internal cutters. The method may also include analyzing the sample, extracting fluid from the sample, analyzing fluid from the sample, encapsulating the sample, and/or tagging the sample. | ||||||
| 79 | Valve, core sampling apparatus and method | US12383590 | 2009-03-25 | US20090255679A1 | 2009-10-15 | Pascal Bartette; Philippe Cravatte |
| A selectively operable downhole valve for use with core sampling apparatus, the valve comprising a throughbore through which a first body may pass, and an obstructing member which is capable of selectively obturating the throughbore, the obstructing member being arranged to open or close the throughbore by movement of the first body with respect to the valve. A core sample of the formation may then be obtained and retrieved from the bore under pressure since the valve seals the bore downhole. Retrieving the sample under pressure maintains the integrity of the core sample so that subsequent analysis of the sample will more closely reflect the true characteristics of the formation. | ||||||
| 80 | OBTAINING AND EVALUATING DOWNHOLE SAMPLES WITH A CORING TOOL | US11852390 | 2007-09-10 | US20080066534A1 | 2008-03-20 | LENNOX REID; ANTHONY R. H. GOODWIN; PETER S. HEGEMAN; Charles Woodburn |
| Samples of hydrocarbon are obtained with a coring tool. An analysis of some thermal or electrical properties of the core samples may be performed downhole. The core samples may also be preserved in containers sealed and/or refrigerated prior to being brought uphole for analysis. The hydrocarbon trapped in the pore space of the core samples may be extracted from the core samples downhole. The extracted hydrocarbon may be preserved in chambers and/or analyzed downhole. | ||||||
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