| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 41 | METHOD FOR CONDUCTING WELL TESTING OPERATIONS WITH NITROGEN LIFTING, PRODUCTION LOGGING, AND BUILDUP TESTING ON SINGLE COILED TUBING RUN | EP16713203.4 | 2016-03-11 | EP3268582A1 | 2018-01-17 | FIPKE, Steven; ABDELAZIZ, Mohannad; GILL, Harmohan; ALNAHDI, AbdulHakim |
| A method for performing a pressure buildup test in an evaluation zone of a well includes the steps of perforating the well in the evaluation zone to allow the flow of hydrocarbon fluids from the reservoir, deploying a pressure buildup test system into the evaluation zone, supplying the lift fluid via the coiled tubing to lift the hydrostatic pressure to lift the hydrocarbon fluids from the evaluation zone toward the surface, moving the packer to the set position, monitoring the pressure data in the evaluation zone, closing the shut-in valve when the stable state of the pressure data is reached, and measuring a buildup pressure in the evaluation zone using the pressure monitoring device. The pressure buildup test system includes a packer, a sub port, a coiled tubing, a shut-in valve, a pressure monitoring device, and a PLT. | ||||||
| 42 | DEPTH RANGE MANAGER FOR DRILL STRING ANALYSIS | EP14880578 | 2014-01-30 | EP3100146A4 | 2017-10-04 | WISE MATTHEW EDWIN |
| A depth range manager provide users with a way to run and retain multiple depth range analyses for a drill string operation, including the operational parameters for each analysis. This allows users easily to view and compare the analyses at the different drilling depth ranges. In some embodiments, instead of drilling depth ranges, users may also urn and retain multiple different models and analyses using multiple different drilling times. The operational parameters for the multiple different models and analyses may be defined and stored using a flexible one-to-many database structure that accommodates the different sets of operational parameters as well as any existing single-analysis parameters associated with legacy analyses. A graphical interface allows users easily to define and store the operational parameters in the flexible one-to-many database structure. | ||||||
| 43 | BOP AND SEPARATOR COMBINATION | EP17152382.2 | 2003-09-24 | EP3184730A3 | 2017-09-27 | Hopper, Hans Paul |
A system for use in down hole operations, the system comprising a wellhead (11); a BOP ram package (17) connected at one end to the wellhead (11) and having an axial bore (20) extending from the wellhead (11) to the other end; a device (34) above the other end of the BOP ram package (17) for isolating the pressure of the wellhead (11); a fluid take off between the pressure containing means (34) and the BOP ram package (17); a separator (19) in communication with the fluid take off such that, in use, a multi-phase medium obtained from the well can be separated into its constituent phases; and a pressure control device on each of one or more outlets from the separator (19) for allowing the system to be operated different wellhead pressures.
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| 44 | PRESSURE AND FLOW CONTROL IN DRILLING OPERATIONS | EP08879035 | 2008-12-19 | EP2358968A4 | 2017-05-17 | LOVORN JAMES R; BRUDER CARLOS; SKINNER NEAL; KARIGAN JOE |
| 45 | Method and apparatus for performing wireline logging operations in an under-balanced well | EP12165965.0 | 2008-03-19 | EP2484857A3 | 2016-08-10 | Khan, Waqar |
A method for performing logging operations in an underbalanced horizontal well without killing the well comprising: installing a downhole wet connector head (110) in a logging tool string (100); inserting the downhole wet connector head (110) and tool string (100) into a casing string deployed to a position adjacent a closed downhole deployment valve; installing a cable side door entry sub (16); inserting a wireline (13) to a pump-down wireline connector through the cable side door entry sub (13) and connecting the wire line (13); pumping the pump-down wireline connector to engage the downhole wet connector head (110); adjusting pressure between the underbalanced portion of the previously drilled well and the proximal portion of the drill string (25) above the pressure isolation valve (90); and, opening the closed pressure isolation valve (90) and moving the logging tool string (100) to the total depth to log the well without killing the well.
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| 46 | Signal operated isolation valve | EP14168885.3 | 2011-09-20 | EP2770160B1 | 2016-07-27 | Noske, Joe; Smith, Roddie; Smith, Paul, L.; Bailey, Thomas F.; McDowell, Christopher, L.; Tilton, Frederick T. |
| 47 | CONTROL OF MANAGED PRESSURE DRILLING | EP13861103 | 2013-12-05 | EP2929122A4 | 2016-01-06 | HAVRE KJETIL; JOHNSON ASHLEY BERNARD; RINGER MAURICE; ALDRED WALTER DAVID |
| 48 | DUAL CIRCULATION DRILLING SYSTEM | EP13738669 | 2013-01-21 | EP2805008A4 | 2015-12-23 | SPEER IAN; STRANGE WARREN |
| 49 | Downhole string for drilling through a low pressure zone | EP14168872.1 | 2014-05-19 | EP2947259A1 | 2015-11-25 | Hazel, Paul |
The present invention relates to a downhole string (1) for drilling through a low pressure zone (Zlow) in a formation in a well (3), comprising a drawdown casing (2) having a first end (4) closest to a top (5) of the well and a second end (6), and an operational tool (8) connected to the second end of the drawdown casing, wherein the downhole string further comprises an annular barrier (10) having an expandable metal sleeve (11) surrounding the drawdown casing, each end of the expandable metal sleeve being connected with the drawdown casing, the expandable metal sleeve being adapted to contact a wall (16) of a borehole or another casing so that after expansion of the expandable sleeve, the drawdown casing can rotate and slide in relation to the annular barrier. Furthermore, the present invention relates to a downhole system and to a downhole method.
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| 50 | SYSTEM AND METHOD FOR RESERVOIR CHARACTERIZATION USING UNDERBALANCED DRILLING DATA | EP08730879 | 2008-02-27 | EP2129868A4 | 2015-10-28 | STEWART GEORGE |
| In an underbalanced drilling system and method, a change is induced in flowing bottom hole pressure in a wellbore. Data of the surface flow rate of effluent is then measured in response to the induced change. This measured data is obtained using a multi-phase flow meter before a separator of the underbalanced drilling system. Algorithms in computer software analyze the flowing bottomhole pressure and the measured surface flow rate data and determine both permeability and formation pressure for a portion of the wellbore in real-time during the underbalanced drilling operation. Ultimately, portion of the wellbore is characterized with the determined permeability and formation pressure. | ||||||
| 51 | DRILLING SYSTEM AND METHOD OF OPERATING A DRILLING SYSTEM | EP11705213.4 | 2011-02-23 | EP2539536B1 | 2015-07-29 | LEUCHTENBERG, Christian |
| 52 | DUAL CIRCULATION DRILLING SYSTEM | EP13738669.4 | 2013-01-21 | EP2805008A1 | 2014-11-26 | Speer, Ian; Strange, Warren |
| A ground drill system (10) has a drill string 14 which forms first and second mutually isolated fluid paths (16 and 18) respectively. The drill string (14) has an up hole end (20) coupled to a dual circulation rotation head (22) and a down hole end (24) which is coupled to a drilling tool (12). The drilling tool (12) is operated by the flow of fluid delivered through the first flow path (16). A second fluid outlet (26) is provided intermediate the up hole end (20) and the drilling tool (12). The outlet (26) is in fluid communication with the second fluid flow path (18) and located a constant or fixed distance from the drilling toll (2). The second fluid outlet (26) discharges a flushing fluid flowing through the flushing flow path (18) into a hole being drilled by the drilling system (10). The rotation head (22) provides torque to the drill string (14) and thus the drilling tool (12). | ||||||
| 53 | METHOD AND APPARATUS FOR PROGRAMMABLE PRESSURE DRILLING AND PROGRAMMABLE GRADIENT DRILLING, AND COMPLETION | EP08869978.0 | 2008-12-29 | EP2268890B1 | 2014-07-16 | DOWNTON, Geoff; KHAN, Waqar |
| 54 | FORMATION TESTING IN MANAGED PRESSURE DRILLING | EP11869316.7 | 2011-07-12 | EP2732130A1 | 2014-05-21 | JEFFRIES, Stuart M. |
| A method of testing an earth formation can include incrementally opening a choke while drilling into the formation is ceased, thereby reducing pressure in a wellbore, and detecting an influx into the wellbore due to the reducing pressure in the wellbore. Another method of testing an earth formation can include drilling into the formation, with an annulus between a drill string and a wellbore being pressure isolated from atmosphere, then incrementally opening a choke while drilling is ceased, thereby reducing pressure in the wellbore, detecting an influx into the wellbore due to the reducing pressure in the wellbore, and determining approximate formation pore pressure as pressure in the wellbore when the influx is detected. Drilling fluid may or may not flow through the drill string when the influx is detected. A downhole pressure sensor can be used to verify pressure in the wellbore. | ||||||
| 55 | ROTATING CONTROL DEVICE | EP11770723.2 | 2011-09-29 | EP2622173A2 | 2013-08-07 | SOKOL, Jonathan P; WAGONER, Danny W; BAILEY, Thomas F; RIOS III, Aristeo; CHAMBERS, James W; HANNEGAN, Don M |
| A system and method is provided for a low profile rotating control device (LP-RCD) and its housing mounted on or integral with an annular blowout preventer seal, casing, or other housing. The LP-RCD and LP-RCD housing can fit within a limited space available on drilling rigs. An embodiment allows a LP-RCD to be removably disposed with a LP-RCD housing by rotating a bearing assembly rotating plate. A sealing element may be removably disposed with the LP-RCD bearing assembly by rotating a seal retainer ring. Alternatively, a sealing element may be removably disposed with the LP-RCD bearing assembly with a seal support member threadedly attached with the LP-RCD bearing assembly. The seal support member may be locked in position with a seal locking ring removably attached with threads with the LP-RCD bearing assembly over the seal support member. Spaced apart accumulators may be disposed radially outward of the bearings in the bearing assembly to provide self lubrication to the bearings. | ||||||
| 56 | Method and apparatus for drilling a borehole into a subsea abnormal pore pressure environment | EP10183265.7 | 1999-02-24 | EP2261457A3 | 2012-09-19 | Bourgoyne, Adam, T.; Bourgoyne, Darryl, A.; Bourgoyne, Tammy, T. |
An apparatus for controlling a subsea borehole fluid pressure is proposed for use with a conductor casing (110) positioned below the mudline (57) and within a normal pore pressure environment. The apparatus includes a pump (53) for moving a fluid through a tubular into a borehole. The fluid, before being pumped, exerts a pressure less than the pore pressure of an abnormal pore pressure environment (10). The fluid in the borehole is then pressurized by the pump (53) to at least a borehole pressure equal to or greater than the pore pressure of an abnormal pore pressure environment (10). A pressure housing assembly (15) allows for the drilling of a borehole below the conductor casing (110) into an abnormal pore pressure environment (53) while maintaining the pressurized fluid between a borehole pressure equal to or greater than the pore pressure of the abnormal pore pressure environment (10), and below the fracture pressure of the abnormal pore pressure environment (10).
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| 57 | ROTATING CONTROL DEVICE DOCKING STATION | EP08719084.9 | 2008-04-03 | EP2150680B1 | 2011-06-22 | BAILEY, Thomas F.; HANNEGAN, Don M.; CHAMBERS, James W.; WAGONER, Danny W. |
| A system and method is provided for converting a drilling rig between conventional hydrostatic pressure drilling and managed pressure drilling or underbalanced drilling using a docking station housing mounted on a marine riser or bell nipple. This docking station housing may be positioned above the surface of the water. When a removable rotating control device is remotely hydraulically latched with the docking station housing, the system and method allows for interactive lubrication and cooling of the rotating control device, as needed, along with a supply of fluid for use with active seals. | ||||||
| 58 | BOP and separator combination | EP10178231.6 | 2003-09-24 | EP2281999A2 | 2011-02-09 | Hopper, Hans Paul |
A system for use in down hole operations, the system comprising a wellhead; a BOP ram package connected at one end to the wellhead and having an axial bore extending from the wellhead to the other end; a device above the other end of the BOP ram package for isolating the pressure of the wellhead; a fluid take of between the pressure containing means and the BOP ram package; a separator in communication with the fluid take of such that, in use, a multi-phase medium obtained from the well can be separated into its constituent phases; and a pressure control device on each of one or more outlets from the separator for allowing the system to be operated different wellhead pressures.
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| 59 | METHOD AND APPARATUS FOR FACILITATING CONTINUOUS CIRCULATION OF DRILLING MUD DURING CONSTRUCTION AND MAINTENANCE OF A WELL | EP09703464.9 | 2009-01-21 | EP2232001A2 | 2010-09-29 | SPRINGETT, FrankBenjamin |
| A method for facilitating continuous circulation of drilling mud during construction and maintenance of a well, the method comprising the steps of moving a housing (102) of a continuous circulation tool (100) to a sub (10) having a bore (14) therethrough, the sub (10) in or for connection in a string of tubular s in the well and selectively allowing drilling mud to flow between the housing (102) and a side opening (13) in the sub (10), the continuous circulation tool (100) further comprising a closure apparatus (40), activating a closure mechanism (41,44) to insert a closure member (42) of the closure apparatus (40) through the side opening (13) in the sub (10) to isolate of drilling fluid through at least a portion of the bore (14). Also disclosed in a system for continuous circulation wellbore operations, the system comprising a continuous circulation tool (100) positionable in fluid communication with a wellbore tubular string comprising a sub (10) therein, the continuous circulation tool (100) for selectively closing off flow to the wellbore tubular string, tubular manipulation apparatus (202) adjacent the sub, and the tubular manipulation apparatus comprising one of tong, tongs, tong and back-up, tong and spinning wrench, and iron roughneck. | ||||||
| 60 | Underbalanced well drilling and production | EP09015250.5 | 2004-10-25 | EP2161404A2 | 2010-03-10 | Humphreys, Gavin |
The invention provides a method comprising: coupling a surface blow out preventer (12) to a wellhead using casing; providing a remotely operable subsurface latch (72) to sever the connection between said wellhead and said surface blow out preventer (12); and producing hydrocarbons from a subsea well in an underbalanced condition using a rotating head (10) mounted on the surface blow out preventer (12).
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