| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 181 | Fluid pressure actuated downhole apparatus | EP86307354.0 | 1986-09-25 | EP0261287B1 | 1990-04-25 | Edwards, A. Glen; George, Kevin R.; Wesson, David S.; George, Flint R.; Brieger, Emmet F. |
| 182 | Fluid pressure actuated downhole apparatus | EP86307354.0 | 1986-09-25 | EP0261287A1 | 1988-03-30 | Edwards, A. Glen; George, Kevin R.; Wesson, David S.; George, Flint R.; Brieger, Emmet F. |
A fluid pressure actuated apparatus for use downhole in a borehole comprises means such as a piston 150 for producing a force in response to a fluid pressure differential between well annulus pressure and a pressure source (above disc 36 in valve 100) isolated from the well annulus pressure; and means such as piston 122 by which extra force is applied to the force producing means in response to elevation of the pressure in a region 132 previously isolated from well annulus pressure. The force producing means may be arranged to operate a valve (36). The force producing means can be arranged to move initially at a first speed and then to surge as the extra force is applied. |
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| 183 | Method and apparatus for controlling borehole pressure in perforating wells | EP86306164.4 | 1986-08-08 | EP0256178A1 | 1988-02-24 | Barfield, Virgil Henry |
A method and apparatus for controlling pressure in a borehole during perforation to provide means for maintaining a fluid column above the perforating zone to control a blowout while isolating the perforating zone from such fluid column to prevent incursion of the fluid column into the perforated zone immediately upon perforation. Provision is also made for a low pressure zone for inducing flow from the formation into the wellbore immediately upon perforation. |
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| 184 | METHOD AND APPARATUS FOR USE WITH AN INFLOW CONTROL DEVICE | EP11796191.2 | 2011-06-07 | EP2567061B1 | 2018-11-28 | THORKILDSEN, Tage; JOKELA, Timo; PETUKHOV, Pavel; DESTAD, Marius; RIISEM, Edvin Eimstad |
| A completion assembly is run downhole into a well. The assembly includes a valve and a material that is adapted to initially configure the valve to prevent fluid flow through the valve in at least one direction. The technique includes performing a downhole completion operation in the well and disintegrating the material to allow the prevented fluid flow through a nozzle of the valve. The nozzle is used to regulate production or injection in the well. | ||||||
| 185 | METHOD OF REMEDIATING A SCREEN-OUT DURING WELL COMPLETION | EP15756318.0 | 2015-08-20 | EP3201427B1 | 2018-11-21 | TOLMAN, Randy C.; MORROW, Timothy I.; BENISH, Timothy G. |
| A method of completing a well involving remediating a condition of screen-out that has taken place along a zone of interest. The method includes forming a wellbore, and lining at least a lower portion of the wellbore with a string of production casing and placing a valve along the production casing, wherein the valve creates a removable barrier to fluid flow within the bore. The barrier is removed by moving the valve in the event of a screen-out. This overcomes the barrier to fluid flow, thereby exposing ports along the production casing to the subsurface formation at or below the valve. Additional pumping takes place to pump the slurry through the exposed ports, thereby remediating the condition of screen-out. | ||||||
| 186 | Tubular filling system | EP09165591.0 | 1999-09-22 | EP2105576B1 | 2018-11-21 | Mullins, Albert Augustus |
| There is disclosed a tubular fillup and circulating tool, comprising: a body (10) having a passage therethrough (12); a telescoping member (34) mounted to said body for selective engagement with the tubular; said telescoping member further comprising a seal (48) to engage the outside of the tubular. | ||||||
| 187 | WELL TOOL DEVICE WITH A FRANGIBLE GLASS BODY | EP17700035.3 | 2017-01-02 | EP3400367A1 | 2018-11-14 | HIORTH, Espen |
| A well tool device may include a housing having an inner surface defining a through bore, a frangible glass body with upper and lower chamfered supporting surfaces and a seat for supporting the frangible glass body in relation to the housing. Additionally, a sealing device is provided between the frangible disc and the seat. Further, the frangible glass body is provided as one glass body with a barrier portion supported by the seat and a neck portion protruding in the direction of the through bore, where the diameter of the neck portion is smaller than the diameter of the barrier portion. | ||||||
| 188 | DOWNHOLE SYSTEM | EP16823211.4 | 2016-12-16 | EP3390772A1 | 2018-10-24 | VASQUES, Ricardo Reves |
| The present invention relates to a downhole system for completing a well. The downhole system comprises a downhole well tubular structure having a wall and being configured to be arranged in a borehole of the well and a first annular barrier for being expanded in an annulus between the downhole well tubular structure and a wall of the borehole. The first annular barrier comprises a tubular part for mounting as part of the downhole well tubular structure, the tubular part having a first expansion opening and an outer face; an expandable metal sleeve surrounding the tubular part and having an inner face facing the tubular part and an outer face facing the wall of the borehole; a first connection part and a second connection part configured to connect a first end and a second end, respectively, of the expandable metal sleeve with the tubular part; and an annular space between the inner face of the expandable metal sleeve and the tubular part, the expandable metal sleeve being expanded by pressurising the annular space to an expansion pressure by pressurising the tubular part opposite the expansion opening. The downhole system further comprises a first aperture in the wall of the downhole well tubular structure. The aperture is at least partly plugged with an acid-soluble material. The present invention further relates to a completion method for completing a downhole system according to the present invention. | ||||||
| 189 | WELL TOOL COMPRISING A FRANGIBLE WELL BARRIER, AND A METHOD FOR PROVIDING SUCH A WELL TOOL | EP16797470.8 | 2016-11-03 | EP3371413A1 | 2018-09-12 | HIORTH, Espen |
| A well tool device includes a housing, a frangible disc and a seat for supporting the frangible disc in relation to the housing. The housing has an inner surface defining a through bore. The frangible disc is provided in the through bore and includes a side surface. The seat includes a side surface. A sealing device is provided between the frangible disc and the seat. The sealing device provided between the side surface of the frangible disc and the side surface of the seat is made from a vulcanized rubber material. | ||||||
| 190 | IMPROVED TOOL | EP14815791.0 | 2014-11-18 | EP3094810B1 | 2018-07-04 | OAG, James George; YOUNGER, Rae Andrew; MCKAY, Simon |
| A flow restriction device for restricting flow through a conduit. | ||||||
| 191 | HYDRAULIC LOCK COMPENSATING DUMMY VALVE | EP15736149.4 | 2015-06-29 | EP3164569B1 | 2018-04-11 | FREEMAN, Steven Terry; MABRY, Wayne J.; SHUMILAK, Edward Eugene; TYLER, Kenneth Frank |
| A dummy valve comprising a housing and a rupture disc disposed within the housing, wherein the housing and the rupture disc define a first internal chamber and associated systems and methods. | ||||||
| 192 | Burst sleeve and positive indication for fracture sleeve opening | EP14196403.1 | 2014-12-04 | EP2881536B1 | 2018-01-31 | TOUGH, John; VINSON, Justin P; BLANTON, Eric M; SHAFFER, Raymond; RICHEY, Luke V |
| A downhole tool, such as a sliding sleeve, deploys on a tubing string in a borehole. The tool has a housing with an internal bore and at least one port communicating outside the housing. An insert disposed in the bore can move from a closed position to an opened position relative to the port so fluid can be communicated to the borehole. A burst band disposed outside the housing at the port can break away from the housing in response to a particular pressure level communicated through the open port. In particular, the insert can have a seat that engages a deployed plug or ball. The insert shifts open when a first level of applied pressure against the seated ball shears the insert free. This can give a first indication that the insert has moved open. Then, a second level of pressure can be detected when the burst band breaks as a second indication that the insert is opened. | ||||||
| 193 | VALVE FOR GRAVEL PACKING A WELLBORE | EP15785259 | 2015-04-28 | EP3137728A4 | 2017-12-20 | LANGLAIS MICHAEL; STAMM BRYAN |
| A downhole tool includes a housing. The housing includes a screen. A valve system is positioned within the housing. The valve system includes a valve and a flow control device. The valve system has a first position where the valve allows a flow within the housing, a second position where the valve directs at least a portion of the flow through the flow control device, and a third position stopping flow through the flow control device. | ||||||
| 194 | TIME-DELAY COATING FOR DISSOLVABLE WELLBORE ISOLATION DEVICES | EP14889505 | 2014-04-16 | EP3097255A4 | 2017-11-08 | FRIPP MICHAEL L; MURPHREE ZACHARY R; WALTON ZACHARY W |
| A method of removing a wellbore isolation device comprises: introducing the isolation device into the wellbore, wherein at least a portion of the wellbore isolation device comprises: a first material; and a coating, wherein the coating: completely surrounds at least the first material prior to introduction of the isolation device into the wellbore. The coating can be made from: a frangible substance that loses structural integrity after introduction of the isolation device into the wellbore via application of a force; a substance that undergoes a phase transformation at the phase transformation temperature of the substance after a period of time has elapsed since introduction of the isolation device into the wellbore; or at least an anode of a galvanic system comprising the anode, a cathode, and an electrolyte, wherein the anode undergoes galvanic dissolution after introduction of the isolation device into the wellbore. | ||||||
| 195 | MULTISTAGE HIGH PRESSURE FRACTURING SYSTEM WITH COUNTING SYSTEM | EP15740560 | 2015-01-23 | EP3097257A4 | 2017-09-27 | GRAF ROBERT JAMES; SMOLKA ROBERT STEVE |
| The invention relates to a multistage high pressure fracturing system and tubular hydraulic valve (THV) system for connection to a completion string to enable isolation of a zone of interest within a well. In particular, the system enables access to a downhole formation for fracturing the zone of interest and for hydrocarbon production. The system generally includes a plug counting system, a plug capture system and a valve system wherein dropping a series of plugs down the completion string enables successive capture of individual plugs within individual THVs for subsequent fracturing operations. | ||||||
| 196 | HYDRAULIC DELAY TOE VALVE SYSTEM AND METHOD | EP17165433.8 | 2016-08-23 | EP3219906A1 | 2017-09-20 | George, Kevin R; Rollins, James A.; Hardesty, John T.; Wesson, David S. |
An apparatus and method for providing a time delay in injection of pressured fluid into a geologic formation. In one aspect the invention is a toe valve activated by fluid pressure that opens ports after a predetermined time interval to allow fluid to pass from a well casing to a formation. The controlled time delay enables casing integrity testing before fluid is passed through the ports. This time delay also allows multiple valves to be used in the same well casing and provide a focused jetting action to better penetrate a concrete casing lining.
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| 197 | CLUSTER OPENING SLEEVES FOR WELLBORE | EP12164003.1 | 2012-04-12 | EP2511470B1 | 2017-09-20 | Garcia, Cesar G; Zimmermann, Patrick J; Ward, David; Flores, Antonio B; Dedman, Michael |
| 198 | METHOD AND APPARATUS TO HYDRAULICALLY BYPASS A WELL TOOL | EP06786814.1 | 2006-07-10 | EP1963614B1 | 2017-08-23 | HILL, Thomas, G., Jr.; BOLDING, Jeffrey, L.; SMITH, David, R. |
| 199 | METHODS OF ADJUSTING THE RATE OF GALVANIC CORROSION OF A WELLBORE ISOLATION DEVICE | EP14884707 | 2014-12-03 | EP3055486A4 | 2017-08-02 | FRIPP MICHAEL L; MURPHREE ZACHARY R; WALTON ZACHARY W |
| A wellbore isolation device comprises a first material and pieces of a second material, wherein the first material: is a metal or a metal alloy; forms a matrix of the portion of the wellbore isolation device; and partially or wholly dissolves when an electrically conductive path exists between the first material and the second material and at least a portion of the first and second materials are in contact with the electrolyte, wherein the pieces of the second material: are a metal or metal alloy; and are embedded within the matrix of the first material; wherein the first material and the second material form a galvanic couple and wherein the first material is the anode and the second material is the cathode of the couple. The isolation device can also include a bonding agent for bonding the pieces of the second material into the matrix of the first material. | ||||||
| 200 | FLOW CONTROL VALVE | EP15841209.8 | 2015-09-18 | EP3194709A1 | 2017-07-26 | SARGENT, Shane; MCCARTHY, Matthew; BORSCHNECK, Sean |
| An apparatus and method for displacing a sleeve within a downhole tool wherein the apparatus comprises an outer mandrel, and a sleeve extending between first and second ends slidably located within the outer mandrel wherein the sleeve and mandrel form first, second and third annular chambers therebetween. The first annular chamber is in fluidic communication with an interior of the sleeve. The second annular chamber is in fluidic communication with an exterior of the mandrel. The third annular chamber is substantially sealed. The method comprises pressurizing the second chamber through bores extending through the sleeve and releasing the pressure within the second chamber so as to permit a vacuum within a third sealed chamber and a pressure from an exterior of the mandrel to pressurize a first chamber to draw the sleeve towards a second end of the outer mandrel thereby uncovering the valve openings. | ||||||
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