| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
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| 181 | PULSE RATE OF PENETRATION ENHANCEMENT DEVICE AND METHOD | EP08864254.1 | 2008-12-17 | EP2235323B1 | 2018-03-07 | Kusko, David John; Vecseri, Gabor; Lerner, Daniel Maurice |
| A device and method and/or system for generating pulses to improve drilling rates, the ability to drill straighter and farther by increasing fracturing or injection efficiencies in a geological formation that may contain desirable hydrocarbons. This system can be used in other types of drilling or fracturing operations, whether to unclog arteries or to open formations for underground storage in conjunction with pulsing/fracturing and create large pulses downhole for seismic purposes. The system and method comprises several pulse generating devices longitudinally and axially positioned within upper, middle, lower, and outer annular drill collar flow channels or packer isolation mechanisms such that the PFD medium flows through the various annular drill collar flow channels and the PFD medium is guided into one or more sets of selectively reversible flow connecting channels, wherein the connecting channels are connected to guide pole channel allowing for controlling pulsing within the geological formation. | ||||||
| 182 | A DRILL BIT FOR USE IN BORING A WELLBORE AND SUBTERRANEAN FRACTURING | EP12815906.8 | 2012-12-19 | EP2795036B1 | 2018-02-14 | ZHOU, Shaohua |
| A drill bit for use in drilling a wellbore and that can be used for fracturing the subterranean formation surrounding the wellbore. Included on the bit body is a packer for sealing against the wellbore wall during fracturing. A chamber in the drill bit houses a valve assembly for selectively diverting fluid between use in drilling and for use in fracturing. The fluid is delivered through a drill string that attaches to an upper end of the bit. The valve assembly can be shuttled between drilling and fracturing configurations by selectively adjusting an amount and/or pressure of the fluid flowing in the drill string. | ||||||
| 183 | Rotating control device for drilling wells | EP10171045.7 | 2010-07-28 | EP2295712B1 | 2018-01-17 | Hoyer, Carel W; Hannegan, Don M.; Bailey, Thomas F.; Jacobs, Melvin T.; White, Nicky |
| A rotating control apparatus, comprising: an outer member; an inner member having a first sealing element and a second sealing element; said inner member, said first sealing element and said second sealing element rotatable relative to said outer member; a first cavity defined by said inner member, said first sealing element and said second sealing element; and said inner member having a port to said first cavity. Disclosed is also a method for drilling a wellbore in a formation with a fluid, comprising the steps of: casing a portion of the wellbore using a casing having a casing shoe; determining a casing shoe pressure; determining a formation fracture pressure; positioning a rotating control device with said casing; and drilling the wellbore at a fluid pressure calculated using the lesser of the casing shoe pressure and the formation fracture pressure. | ||||||
| 184 | ACTIVATION MECHANISM FOR A DOWNHOLE TOOL AND A METHOD THEREOF | EP14885128 | 2014-12-18 | EP3117074A4 | 2017-11-22 | SOLEM SIGURD |
| An activation method and a mechanism in which a pressure or flow sensor senses the pressure or flow rate of the treatment fluid being pumped through the drill string. A controller powered by a power source monitors the sensed pressure or flow rate within a first time window and via a suitable activator activates a first downhole tool or operation mode thereof if the sensed pressure or flow rate is stable with that time window. The controller monitors the sensed pressure or flow rate within a second time window and activates a second downhole tool or second operation mode of the first downhole tool if the sensed pressure or flow rate is stable with that time window. In one embodiment, the sensed pressure is combined with a rotation sensor sensing the rotation of the drill string. The controller logs the starting time for the pumping and the rotation. | ||||||
| 185 | CASING FILL-UP FLUID MANAGEMENT TOOL | EP11755602 | 2011-03-21 | EP2547857A4 | 2017-10-25 | SLACK MAURICE WILLIAM; ALLEN MATTHEW |
| A fluid management tool for introducing fluids into a casing string incorporates a mud saver valve configured to open and allow fluid flow in response to fluid flow pressure reaching a predetermined opening pressure, and will automatically close when fluid flow pressure is reduced to or below a predetermined closure pressure, thereby preventing fluid spillage when the tool is withdrawn from the casing. The mud saver valve includes a mud saver spool having a slotted spool cage and being axially movable within a longitudinal bore in the main body of the tool, between an upper or open position in which fluid can flow out of the spool cage and into a discharge bore at the lower end of the main body, and a lower or closed position in which the lower end is seated against the exit bore to prevent flow therethrough. A check valve may be incorporated into the lower end of the mud saver spool. The fluid management tool also may incorporate a main seal and air bleed valve subassembly and a secondary suction seal and check valve subassembly. | ||||||
| 186 | VARIABLE VALVE AXIAL OSCILLATION TOOL | EP14879611 | 2014-01-21 | EP3066288A4 | 2017-09-20 | HAY CHARLES RICHARD THOMAS |
| 187 | TOOLFACE CONTROL WITH PULSE WIDTH MODULATION | EP14909629.9 | 2014-12-29 | EP3212876A1 | 2017-09-06 | NANAYAKKARA, Ravi P. |
| In accordance with some embodiments of the present disclosure, systems and methods for a toolface control system is disclosed. The system includes, a rotating drill string of a drilling tool, an assembly located within the rotating drill string representing a current toolface of the drilling tool, and a controller configured to use pulse width modulation to adjust a rotational speed of the assembly to maintain the current toolface at a desired toolface. | ||||||
| 188 | CONTROLLER APPARATUS, SYSTEM AND/OR METHOD FOR CONTROLLING PRESSURES IN A FLUID CONTROL SYSTEM | EP14860182 | 2014-10-29 | EP3066296A4 | 2017-08-30 | EASTER PHIL PHILIP; BURKHARD ALAN WAYNE |
| A fluid control system has a body with the inlet passage in fluid communication with a discharge passage. The position of a choke piston in the body controls flow of the fluid from the inlet passage to the discharge passage. A controller connected to the body has an actuator connected to a linkage that is connected to the choke piston. The controller positions the choke piston in the body using the actuator and the linkage to control the flow of a fluid from the inlet passage to the outlet passage. | ||||||
| 189 | Multi-purpose float | EP09174158.7 | 2001-03-12 | EP2143875A3 | 2017-08-09 | Musselwhite, Jeffrey D; Ehlinger, Jeffry C; Allamon, Jerry P; Miller, Jack E. |
A float shoe/collar apparatus (14) and method is disclosed for multipurpose use in running a tubular string (11) such as a casing string or liner into a wellbore and for optimizing cementing operations. In one presently preferred embodiment, the present invention permits auto filling of the tubular string (11) as the string (11) is lowered into the wellbore. If desired, circulation can be effected through down jets (30) for washing the wellbore as necessary. After the tubular string (11) is positioned, the down jets (3) can be blocked off and up jets (33) opened to thereby direct cement upwardly to optimize cement placement. Check valves (31) can also be activated in accord with the present invention to prevent flow from the wellbore into the tubular string (11). In one embodiment, the invention comprises an inner member (27) and an outer tubular member (25). The inner member (27) is movable upon release of shear pins (28) to cause longitudinal movement relative to the outer member (25). The movement of the inner member (27) may close a plurality of downward jets (30) and may also open a plurality of upward jets (33) if desired. The apparatus (14) may also be equipped with a set of check valves (31) which can be held open on run in, and subsequently activated to thereby automatically close upon cementing to prevent "u-tubing" of fluids back into the casing (11).
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| 190 | A METHOD FOR DETECTING GAIN OR LOSS OF DRILLING FLUID IN A DRILLING INSTALLATION ASSOCIATED CALCULATION SYSTEM AND ASSOCIATED DRILLING INSTALLATION | EP15290320.9 | 2015-12-17 | EP3181809A1 | 2017-06-21 | Francois, Matthias |
The present disclosure concerns a method for detecting gain or loss of drilling fluid in a drilling installation, said drilling installation comprising a drilling pipe, drilling fluid pits and a hydraulic connection between the pits and the drilling pipe. Said method comprises: |
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| 191 | LARGE BORE AUTO-FILL FLOAT EQUIPMENT | EP11787227 | 2011-05-24 | EP2576958A4 | 2017-04-12 | GROESBECK BRAD; ARCEMENT JEFFREY; JORDAN JOHN; MARTENS JAMES |
| An auto-fill type float collar assembly is provided. The float collar assembly of the present invention has at least one curved flapper-style valve, preferably constructed of composite, non-metallic material. Each flapper of the present invention has a substantially 90° range of motion, and is closed via a torsion spring. Each flapper is held in the open (or “auto-fill”), position via an external shifting mechanism passing around, rather than through, the central flow bore of the assembly. A floatable actuation ball can be run with the tool, or pumped downhole, in order to selectively actuate the assembly and close the flappers when desired. | ||||||
| 192 | Continuous flow drilling systems and methods | EP11187371.7 | 2008-07-25 | EP2415960B1 | 2017-04-12 | Iblings, David; Bailey, Thomas F.; Bansal, Ram Kumar; Steiner, Adrian; Lynch, Michael; Harrall, Simon, John |
| 193 | PUMPS-OFF ANNULAR PRESSURE WHILE DRILLING SYSTEM | EP15792034.9 | 2015-05-13 | EP3143239A1 | 2017-03-22 | SUN, Yong; BO, Yu; REYES RIBERA, Sandra; GARCIA-MAYANS, Aldrick |
| Aspects of the disclosure can relate to a method for transmitting a pump-off pressure profile within a limited bandwidth. For example, a method may include selecting a compression protocol based upon at least one of a time length associated with the pump-off pressure data, a relative mean-squared error associated with the pump-off pressure data, or a maximum error associated with the pump-off pressure data. The method also includes compressing pump-off pressure data with the compression protocol to produce compression bits. The compression bits represent the pump-off pressure profile. The method also includes transmitting, via a communication module, the compression bits to a computing device. | ||||||
| 194 | FLOW STOP VALVE | EP09784954.1 | 2009-08-18 | EP2467561B1 | 2017-03-15 | SWIETLIK, George; LARGE, Robert; MORRIS, Ryan, Peter |
| 195 | POPPET VALVE WITH VARIABLE DAMPENER AND ELASTICALLY SUPPORTED GUIDE | EP14785027 | 2014-04-17 | EP2986809A4 | 2016-12-14 | MARICA ADRIAN |
| A valve assembly for operation within a valve body of a pump includes an axial centerline, a poppet guide having a stem, and a poppet slidingly coupled to the poppet guide so that the poppet and the poppet guide define an internal cavity. The valve assembly also includes a flexible poppet guide mounting system coupled to the poppet guide and the poppet and includes a variable-area flow restrictor in fluid communication with the internal cavity. The flexible poppet guide mounting system is configured to support the poppet guide and the poppet for lateral and axial movement of the poppet guide and the poppet relative to the axial centerline. The poppet is movable relative to the poppet guide to adjust the volume of the internal cavity. | ||||||
| 196 | ARRANGEMENT FOR CONTINUOUS CIRCULATION OF DRILLING FLUID DURING DRILLING OPERATIONS | EP13806771.5 | 2013-06-13 | EP2861816B1 | 2016-12-14 | SKJÆRSETH, Odd B.; EILERTSEN, Bjørn |
| 197 | COLLECTOR CIRCUIT FOR DRILLING FLUID CIRCULATION SYSTEM AND METHOD FOR DIVERTING THE CIRCULATION OF THE FLUID | EP15701843.3 | 2015-01-12 | EP3094809A1 | 2016-11-23 | FERRARI, Stefano |
| A collector circuit and associated circulation process, for intercepting and selectively diverting, at least partially, a fluid flow continuously flowing in a fluid circulation system, for drilling rigs. The collector includes a first sub-circuit with a first duct, with a first valve, and a second duct with a second valve; and; a second sub-circuit; The first sub-circuit, depending on the operating configurations of the first valve and the second valve, is adapted to allow the transit of the fluid flow in the first duct, and selectively divert fluid flow towards the second duct. The second sub-circuit is fluid-dynamically connected to the second duct of the first sub-circuit for receiving fluid flow, diverted by the first sub-circuit, and directing it towards a first outlet of the second sub-circuit. The second sub-circuit and the first sub-circuit are independent, and the second sub-circuit is removable from the collector circuit. | ||||||
| 198 | ACTUATOR FOR DUAL DRILL STRING VALVE AND DRILL STRING VALVE CONFIGURATIONS THEREFOR | EP13703778.4 | 2013-02-06 | EP2834445B1 | 2016-11-16 | ALHAUG, Espen; MEINSETH, Stein Erik |
| 199 | VARIABLE VALVE AXIAL OSCILLATION TOOL | EP14879611.3 | 2014-01-21 | EP3066288A1 | 2016-09-14 | HAY, Charles Richard Thomas |
| An apparatus and method for creating axial movement of a drill string using a variable valve and a controller. In some embodiments, the controller is a proportional-integral-derivative controller. | ||||||
| 200 | FLUID PRESSURE PULSE GENERATING APPARATUS WITH PRIMARY SEAL ASSEMBLY, BACK UP SEAL ASSEMBLY AND PRESSURE COMPENSATION DEVICE AND METHOD OF OPERATING SAME | EP15177783.6 | 2013-12-20 | EP2977546A2 | 2016-01-27 | LOGAN, Aaron W.; LOGAN, Justin C.; SWITZER, David A. |
The embodiments described herein generally relate to a fluid pressure pulse generating apparatus with a primary seal assembly, back up seal assembly and pressure compensation device. The pressure compensation device comprises a membrane support and a longitudinally extending membrane system. The membrane support has a longitudinally extending bore therethrough for receiving a driveshaft of the fluid pressure pulse generating apparatus. The longitudinally extending membrane system comprising a longitudinally extending outer membrane sleeve and a longitudinally extending inner membrane sleeve with the inner membrane sleeve positioned inside the outer membrane sleeve. The membrane system is sealed to the membrane support to allow flexing of the membrane system in response to fluid pressure on either an inner longitudinal surface of the membrane system or an outer longitudinal surface of the membrane system and to prevent fluid on the inner longitudinal surface mixing with fluid on the outer longitudinal surface.
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