| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 241 | Seated hammer apparatus for core sampling | US14438743 | 2013-11-08 | US09803441B2 | 2017-10-31 | Gregory Donald West |
| A retrievable core sampling assembly for latching to or relative to a rotatable tubular housing of a core sampling apparatus to allow the capture and retrieval of a core from a subterranean formation, the assembly comprising or including: a core catcher barrel for a core, the barrel being rotationally isolated from the tubular housing and cooperable with a core taking bit coupled to the rotatable tubular housing to retain a core, and a hammer for providing impact to the core taking bit along a longitudinal impact path that is or is substantially decoupled from the core catcher barrel so that when latched, rotation and impact of the core taking bit captures and passes core material from the formation to the core catcher barrel in manner that isolates a core in the core catcher barrel from rotation and impact forces. | ||||||
| 242 | APPARATUS AND METHOD FOR WITHDRAWING CORES FROM DRILLED HOLES | US15440403 | 2017-02-23 | US20170292340A1 | 2017-10-12 | Byron Harvey Wade |
| A core extracting apparatus and method is provided. The annular core extracting apparatus may be dimensioned so as to be lowered into the core groove circumscribing a drilled core. The core extracting apparatus has a cylindrical outer casing encasing a cylindrical inner grabber in a release condition, wherein the inner grabber is adapted to move from the release condition to a gripping condition as the outer casing is lifted from the core groove. The inner grabber provides a plurality of peripheral fingers, each finger providing a wedge along its outer surface, wherein the release condition each wedge nests in a taper provided by the outer casing so that when the inner grabber moves to the gripping condition the wedge interfaces with the outer casing to urge the fingers inward, gripping the core and extracting it from the drilling hole. | ||||||
| 243 | Core drilling tools with external fluid pathways | US14500012 | 2014-09-29 | US09689222B2 | 2017-06-27 | Christopher L. Drenth |
| Implementations of the present invention include a core barrel assembly including external fluid pathways extending generally axially long the outer surface of the core barrel assembly. The one or more external fluid pathways can allow for increased fluid flow around a latch mechanism. The increased fluid flow around the latch mechanism can allow the core barrel assembly to travel faster within the drill string, can allow drilling fluid to pass by the latch mechanism when engaged. Implementations of the present invention also include drilling systems including external fluid pathways, and methods of retrieving a core sample using such drilling systems. | ||||||
| 244 | Core Release System and Method | US15336919 | 2016-10-28 | US20170122050A1 | 2017-05-04 | Gavin Thomas McLeod; Kelvin Brown |
| A core release system 10 has a housing 28 provided with an impact member 30 arranged to impact a core sample 16 gripped in a core tube 12. The housing 10 can be fitted over an end of the core tube 12 in which a core sample is gripped. The impact member is arranged to deform in preference to the core sample 16. By applying a force to the housing 28 or the tube 12 which causes impact of the core sample 16 on the impact member 28 the core sample is displaced relative to, and released from the grip of, the tube 12. | ||||||
| 245 | CLEANING AND SEPARATING FLUID AND DEBRIS FROM CORE SAMPLES AND CORING SYSTEMS | US14899065 | 2015-07-30 | US20160376861A1 | 2016-12-29 | 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. | ||||||
| 246 | Up-hole bushing and core barrel head assembly comprising same | US13803820 | 2013-03-14 | US09528337B2 | 2016-12-27 | George Iondov |
| A bushing for positioning within a core barrel assembly during an up-hole drilling operation. The bushing has a wall with an inner surface and an outer surface. The inner surface defines an inlet, an outlet, and a central bore of the bushing. The central bore surrounds a longitudinal axis of the bushing and extends between the inlet and the outlet. The outer surface has a first portion positioned proximate the inlet and a second portion positioned proximate the outlet. The first portion of the outer surface of the wall projects outwardly from the second portion of the outer surface relative to the longitudinal axis of the bushing such that the first portion of the outer surface defines opposed first and second shoulder surfaces extending substantially perpendicularly relative to the longitudinal axis. Core barrel head assemblies including such bushings are also described. | ||||||
| 247 | High pressure coring assembly and method | US13416692 | 2012-03-09 | US09506307B2 | 2016-11-29 | Douglas Kinsella |
| A wireline or drill pipe retrievable coring tool with an inner barrel to receive a core, a bottom coring tool valve operable to seal off a bottom of the inner barrel and at least one pressure canister operable to receive fluid from the core in the inner barrel. The pressure canister is operable to significantly reduce the pressure inside the inner barrel utilizing an expandable chamber to receive fluid from the core as the tool is removed from the wellbore. In one embodiment, a bottom valve mechanism moves the cored formation materials out of the way of the bottom valve before the bottom valve is closed. | ||||||
| 248 | Receiving and measuring expelled gas from a core sample | US14902822 | 2013-08-01 | US09482089B2 | 2016-11-01 | Ludovic Delmar; Benjamin Llywelyn Evans; Adrien P. C. Henry; Svein Ravndal |
| An example system for receiving gas expelled from a core sample of a formation may include a tubular element. A core chamber may be disposed within the first tubular element. A gas and drilling fluid separator may be in fluid communication with the core chamber. The tubular element may be an inner barrel assembly of a core sample assembly that is disposed within a borehole. A core sample may be contained within the inner barrel assembly and may be retrieved at the surface. Gas may be expelled from the core sample as it is retrieved, and the gas and drilling fluid separator may separate the expelled gas from suspension with a drilling fluid for analysis. | ||||||
| 249 | Pressure core barrel for retention of core fluids and related method | US14253386 | 2014-04-15 | US09441434B2 | 2016-09-13 | Bobby Talma Wilson; David Young McGehee |
| A pressure coring apparatus comprises a housing having an upper end and a lower end. A valve is coupled to the lower end of the housing and has an open position for entrance of a core and a closed position for retaining and sealing the core within the housing. A piston assembly is moveably disposed within the housing. A first volume is defined within the housing and between the upper end of the housing and the piston assembly. A second volume is defined within the housing between the lower end of the housing and the piston assembly. A pressure relief device is disposed through the housing and operable to maintain pressure within the first volume and the second volume below a target pressure. | ||||||
| 250 | Core drilling tools with retractably lockable driven latch mechanisms | US14193136 | 2014-02-28 | US09399898B2 | 2016-07-26 | Charles Ernest Muntz; Christopher L. Drenth; George Iondov |
| Drilling systems and methods for deploying a latch mechanism upon reaching a drilling position. The drilling systems and methods permit spinning of a drill string to cause a core barrel head assembly to spin through the frictional mating of a landing shoulder of the head assembly and a landing ring of an outer tube assembly. The spinning of the drill string induces a centrifugal and/or radial force that acts on the latch mechanism to overcome the frictional retention forces acting on the latch mechanism, thereby permitting deployment of the latch mechanism. | ||||||
| 251 | Head Assembly and a Valve System for Use in a Core Drilling System | US14896077 | 2014-05-30 | US20160123101A1 | 2016-05-05 | Paul Attiwell |
| A valve system for an inner tube assembly is described. The inner tube assembly is arranged to be used in a drilling system to retrieve a core sample, and is arranged to be insertable into a drill string of the drilling system at a first end of the drill string. The valve system is arranged to be configurable in a first closed configuration, an open configuration, and a second closed configuration. The valve system moves to the first closed configuration when fluid is pumped along an interior region of the drill string towards the inner tube assembly in a direction from the first end of the drill string to the inner tube assembly. The valve system is arranged such that, when in the first closed configuration, a pressure of the fluid increases to facilitate deploying the inner tube assembly towards a second end of the drill string. The valve system moves to the open configuration in response to the inner tube assembly reaching a vicinity of the second end of the drill string and being prevented from moving further towards the second end of the drill string. The valve system is arranged such that, when in the open configuration, fluid can flow to a drill bit located at or near the second end of the drill string. The valve system moves to the second closed configuration when fluid is pumped along the interior region of the drill string towards the inner tube assembly in a direction from the second end of the drill string to the inner tube assembly. The valve system is arranged such that, when in the second closed configuration, the pressure of the fluid increases to facilitate retrieving the inner tube assembly from the vicinity of the second end of the drill string. | ||||||
| 252 | CORING TOOL INCLUDING CORE BIT AND DRILLING PLUG WITH ALIGNMENT AND TORQUE TRANSMISSION APPARATUS AND RELATED METHODS | US14020296 | 2013-09-06 | US20150068809A1 | 2015-03-12 | Nathaniel R. Adams |
| A coring tool may comprise a core bit, and the core bit may comprise at least one cutting structure extending from adjacent an inner bore of the core bit to an outer gage of the core bit. A drill plug may be configured to close the inner bore of the core bit, and the drill plug may comprise at least one cutting structure. An indexing device may be disposed between the drill plug and the core bit. The indexing device may be configured to maintain a predetermined angular relationship between the core bit and the drill plug. The at least one cutting structure of the core bit and the at least one cutting structure of the drill plug may form a substantially continuous cutting structure at the predetermined angular relationship. Related methods of drilling with a coring tool. | ||||||
| 253 | CORE BARREL HEAD ASSEMBLY | US14375094 | 2012-01-27 | US20140353044A1 | 2014-12-04 | Paul Lambert; Patrick Salvador |
| A valve assembly for use in an inner tube member of a core barrel head assembly positionable within a drill string of a drilling apparatus. The piston member of the valve assembly is located between a fluid pressure communication port and a fluid flow port to hold the retracting case in an up position and the latches retracted. After an increased fluid pressure has pushed the piston member past the annular element or bushing, the piston member substantially restricts fluid flow through the bushing and allows the retracting case to move to a down position and extend the latches. If the latches are not extended due to an obstruction or misalignment, the retracting case will prevent the piston member from completely passing through the bushing, thus maintaining high fluid pressure due to the flow ports remaining closed, and indicating to the driller that the latches have not properly latched. | ||||||
| 254 | CORE BARREL VALVE ASSEMBLY | US14375081 | 2012-01-27 | US20140353039A1 | 2014-12-04 | Paul Lambert; Patrick Salvador; Patrick Lu |
| A valve assembly for use in an inner tube member of a core barrel head assembly positionable within a drill string of a drilling apparatus. The valve assembly works using two separate surfaces A and B and a biasing element with a force FS. When hydrostatic pressure is present forces are created on these surfaces: FA and FB. These forces have a direct relationship with pressure, as an increase in pressure will increase the force and vice versa. The surface areas are designed such that: FA>FB+FS, which will maintain the valve closed while under a predetermined fluid pressure, indicating to the driller that the inner tube has landed. When the driller relieves the fluid pressure and the pressure decreases, the force difference between FA, FB and FS decreases until FA | ||||||
| 255 | PRESSURE CORE BARREL FOR RETENTION OF CORE FLUIDS AND RELATED METHOD | US14253386 | 2014-04-15 | US20140305712A1 | 2014-10-16 | Bobby Talma WILSON; David Young MCGEHEE |
| A pressure coring apparatus comprises a housing having an upper end and a lower end. A valve is coupled to the lower end of the housing and has an open position for entrance of a core and a closed position for retaining and sealing the core within the housing. A piston assembly is moveably disposed within the housing. A first volume is defined within the housing and between the upper end of the housing and the piston assembly. A second volume is defined within the housing between the lower end of the housing and the piston assembly. A pressure relief device is disposed through the housing and operable to maintain pressure within the first volume and the second volume below a target pressure. | ||||||
| 256 | Driven latch mechanism | US12898878 | 2010-10-06 | US08794355B2 | 2014-08-05 | Christopher L. Drenth; George Iondov; George Ibrahim |
| A core barrel assembly having a driven latch mechanism that can lock the core barrel assembly axially and rotationally relative to a drill string. The driven latch mechanism can include a plurality of wedge members positioned on a plurality of driving surfaces. Rotation of the drill string can cause the plurality of wedge members to wedge between an inner diameter of the drill string and the plurality of driving surfaces, thereby rotationally locking the core barrel assembly relative to the drill string. Drilling systems including the driven latch mechanism and methods of using the driven latch mechanism are also described. | ||||||
| 257 | UP-HOLE BUSHING AND CORE BARREL HEAD ASSEMBLY COMPRISING SAME | US13803820 | 2013-03-14 | US20130192901A1 | 2013-08-01 | George Iondov |
| A bushing for positioning within a core barrel assembly during an up-hole drilling operation. | ||||||
| 258 | INSTRUMENTED CORE BARRELS AND METHODS OF MONITORING A CORE WHILE THE CORE IS BEING CUT | US13659250 | 2012-10-24 | US20130113487A1 | 2013-05-09 | Michael S. BITTAR; Gary E. WEAVER |
| A formation core analysis system can include an inner barrel and a toroidal electromagnetic antenna which transmits electromagnetic signals into a formation core when the core is received in the inner barrel. Another formation core analysis system can include an inner barrel and multiple longitudinally spaced apart electrodes which electrically contact a formation core when the core is received in the inner barrel. A speed of displacement of the core into the inner barrel may be indicated by differences between measurements taken via the electrodes as the core displaces into the inner barrel. A method of measuring resistivity of a formation core as the core is being cut can include transmitting electromagnetic signals into the core from a toroidal electromagnetic antenna as the core is being cut by a coring bit. | ||||||
| 259 | HIGH PRODUCTIVITY CORE DRILLING SYSTEM | US13717421 | 2012-12-17 | US20130105227A1 | 2013-05-02 | Christopher L. Drenth |
| High productivity core drilling systems include a drill string, an inner core barrel assembly, an outer core barrel assembly, and a retrieval tool that connects the inner core barrel assembly to a wireline cable and hoist. The drill string comprises multiple variable geometry drill rods. The inner core barrel assembly comprises a non-dragging latching mechanism, such as a fluid-driven latching mechanism that contains a detect mechanism that retains the latches in either an engaged or a retracted position. The inner core barrel assembly also comprised high efficiency fluid porting. | ||||||
| 260 | Sealed core | US12773105 | 2010-05-04 | US08430186B2 | 2013-04-30 | Lennox E. Reid, Jr.; Carsten Sonne |
| An apparatus comprising a sidewall coring tool configured to obtain a plurality of sidewall formation cores from a sidewall of a wellbore extending into a subterranean formation, wherein the sidewall coring tool comprises a core catching tube configured to store the plurality of sidewall formation cores therein, wherein the core catching tube comprises a fluid port configured to allow evacuation of fluid from the core catching tube as each of the plurality of sidewall formation cores is introduced therein, and wherein the core catching tube, including the fluid port, is configured to be sealed downhole without removing the sidewall coring tool from the wellbore. | ||||||
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