| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 81 | SYSTEM FOR USING PRESSURE EXCHANGER IN DUAL GRADIENT DRILLING APPLICATION | US15492788 | 2017-04-20 | US20170306986A1 | 2017-10-26 | James Elliott McLean, JR.; Farshad Ghasripoor; David Deloyd Anderson; Jeremy Grant Martin |
| A system includes a mud return system. The mud return system includes a pressure exchanger (PX) configured to be installed in a body of water, to receive used drilling mud, to receive a second fluid, to utilize the second fluid to pressurize the drilling mud for transport, via a mud return line, from a first location at or near the sea floor to a second location at or near a surface of the body of water. | ||||||
| 82 | Emergency valve assembly for extraction wells, well equipped with said valve and process for managing an extraction well with said valve under emergency conditions | US14892769 | 2014-05-23 | US09739110B2 | 2017-08-22 | Claudio Molaschi |
| The emergency valve assembly (5) for extraction wells according to the invention comprises A) an external housing (50) and B) a rotating stopper (54). The pass-through duct (52) is arranged for the passage of a production and/or drilling line arranged for containing and carrying, through at least one relative pipe (9), extraction fluids such as, for example, petroleum, oil, water, sludge, rock debris and/or earth, natural gas, or other fluids extracted from an underground reservoir. The valve (5) also comprises a stopper drive (56), arranged for actuating the rotating stopper (54) making it rotate so as to shear the production or perforation line passing through it, in particular shearing the pipe (9) and closing the pass-through duct (52). The pass-through duct (52, 520) has a minimum passage section having a diameter equal to or greater than seven inches. It provides an effective additional safety measure in the case of emergencies. | ||||||
| 83 | Offshore drilling rig and a method of operating the same | US14777017 | 2014-03-17 | US09714546B2 | 2017-07-25 | Michael Kannegaard; Allan McColl; Jesper Holck |
| An offshore drilling rig comprising a drill deck, at least one work center arranged in the drill deck; a diverter system operatively connectable at least to a riser extending towards the seafloor; a hoisting system adapted for raising or lowering tubular equipment through the work center; wherein the offshore drilling rig comprises a first positioning system configured for positioning at least the work center and/or the diverter system and/or a riser tensioning system selectively at a first horizontal position and a second horizontal position, different from the first horizontal position; and wherein the hoisting system is operable to raise or lower tubular equipment through the work center when said work center is positioned at said first horizontal position. | ||||||
| 84 | Flow stop valve | US14302150 | 2014-06-11 | US09677376B2 | 2017-06-13 | George Swietlik; Robert Large |
| A flow stop valve positionable in a downhole tubular, and a method, in which the flow stop valve is in a closed position when a pressure difference between fluid outside the downhole tubular and inside the downhole tubular at the flow stop valve is below a threshold value, thereby preventing flow through the downhole tubular. The flow stop valve is in an open position when the pressure difference between fluid outside the downhole tubular and inside the downhole tubular at the flow stop valve is above a threshold value, hereby permitting flow through the downhole tubular. | ||||||
| 85 | Method of handling a gas influx in a riser | US14394038 | 2013-04-10 | US09605502B2 | 2017-03-28 | Christian Leuchtenberg; Michael Chandra; Carlos Goncalves |
| A method of operating a system for handling an influx of gas into a marine riser during the drilling of a well bore includes the steps of operating a first riser closure apparatus to close the riser at a first point above a flow spool provided in the riser, there being a riser gas handling line extending from the riser at the flow spool to a riser gas handling manifold, operating a second riser closure apparatus to close the riser at a second point below the flow spool, pumping fluid into an inlet line which extends into the riser at a point above the second point but below the flow spool, and operating a choke provided in the riser gas handling manifold to maintain the pressure in the inlet line or the riser at a substantially constant pressure. | ||||||
| 86 | Fluid displacement tool and method | US14404028 | 2013-05-30 | US09488018B2 | 2016-11-08 | James Linklater; Mark Temple |
| A riser displacement and cleaning tool assembly (10) comprises a running tool (8) attachable to a work string (11), and a fluid displacing body (1) supported upon the running tool. The fluid displacing body has a head portion (6) provided with an opening (12) to accommodate relative movement of the fluid displacing body with respect to the work string, and also has flexible wiper elements (2) providing dynamic sealing contact with adjacent surfaces of the work string and a riser (20). The fluid displacing body has a skirt (5) depending from the head portion and enclosing a chamber (7) for receiving a fluid. The fluid displacing body is adapted to sealingly engage the riser and the string and is selectively releasable from an initial configuration where the fluid displacing body is supported by the running tool to an operational configuration where the fluid displacing body is axially displaceable from the running tool by introduction of a fluid to the chamber. | ||||||
| 87 | Flow control system | US14405922 | 2013-06-06 | US09476271B2 | 2016-10-25 | Robert Arnold Judge; Christopher Edward Wolfe; Fengsu Liu; Li Liu; Farshad Ghasripoor |
| A flow control system for drilling a well comprises a conduit defining a channel configured to accommodate a drill pipe and a flow of a returning drilling fluid, and an acoustic sensor array configured to detect a flow rate of the returning drilling fluid. The flow control system further comprises a flow control device configured to control the flow rate of the returning drilling fluid and to be actuated in response to an event detected by the sensor array, the flow control device being proximate to the sensor array. | ||||||
| 88 | A DEEP WATER DRILLING RISER PRESSURE RELIEF SYSTEM | US14917275 | 2014-06-27 | US20160215587A1 | 2016-07-28 | DAG VAVIK |
| A deep water drilling riser pressure relief system includes a drilling riser extending from a surface down to a BOP stack arranged subsea. The drilling riser comprises a drilling riser slip joint, an annular preventer arranged below the drilling riser slip joint, and at least one pressure relief device arranged in a lower part of the drilling riser. The at least one pressure relief device is configured to open so as to discharge a fluid from the drilling riser to the sea if a pressure difference between an inside and an outside of the drilling riser exceeds a pre-determined threshold. | ||||||
| 89 | Direct drive fluid pump for subsea mudlift pump drilling systems | US14122179 | 2012-05-09 | US09322230B2 | 2016-04-26 | Emil R. Talamo; John H. Cohen |
| A subsea mudlift pump includes a pressure sealed housing disposed in a body of water in which a wellbore is being drilled by a drilling rig disposed above the surface of the body of water. A motor (44) is configured to generate linear motion is coupled to at least one piston (46) disposed within the housing such that operation of the motor causes linear motion of the piston within the housing. One side of the piston is within a pumped fluid chamber that changes volume when the piston is moved within the housing. | ||||||
| 90 | WELL MONITORING, SENSING, CONTROL AND MUD LOGGING ON DUAL GRADIENT DRILLING | US14787994 | 2014-05-30 | US20160102541A1 | 2016-04-14 | Kurt Adam Kronenberger; Mathew Dennis Rowe; Patrick Gregory McCormack; Hunter Terrance Guchereau; Bradly Shawn Hogan |
| The present disclosure provides systems and methods for tracking system parameters in each of two or more circulatory systems, such as in a dual gradient drilling system. The systems and methods may include defining each of multiple circulatory systems and simultaneously tracking one or more system parameters for each circulatory system. Systems and methods may further include tracking a discrete portion of fluid circulating in each circulatory system, and associating one or more system parameters with each tracked discrete portion of fluid. Such association may be maintained as each portion of fluid circulates in each respective circulatory system. | ||||||
| 91 | System for monitoring a surface for gas and oil flow | US14563968 | 2014-12-08 | US09261391B2 | 2016-02-16 | William J. Berger, III; James F. Keenan; Zachary I. Metz; William J. Berger, II |
| A system for monitoring for gas and oil flow venting from a surface using time intervals, size and velocity, and using a processor with a data storage containing a bubble flow classification chart and bubble flow categories. The data storage receives at least one: video feed, drilling parameter data feed, seismic profile data feed, logging while drilling data feed, measurement while drilling data feed, sonar data feed, and hydrographic data feed to verify a determined bubble flow category and bubble flow classification as a baseline bubble flow classification and provides an alarm when a bubble flow emergency is ascertained due to a change in bubble flow classification without an anticipated change or changes outside predefined acceptable limits within the video feed, drilling parameter data feed, seismic profile data feed, logging while drilling data feed, sonar data feed, hydrographic data feed, or measurement while drilling data feed. | ||||||
| 92 | AN OFFSHORE DRILLING RIG AND A METHOD OF OPERATING THE SAME | US14777017 | 2014-03-17 | US20160032659A1 | 2016-02-04 | Michael KANNEGAARD; Allan McCOLL; Jesper HOLCK |
| An offshore drilling rig comprising a drill deck, at least one work center arranged in the drill deck; a diverter system operatively connectable at least to a riser extending towards the seafloor; a hoisting system adapted for raising or lowering tubular equipment through the work center; wherein the offshore drilling rig comprises a first positioning system configured for positioning at least the work center and/or the diverter system and/or a riser tensioning system selectively at a first horizontal position and a second horizontal position, different from the first horizontal position; and wherein the hoisting system is operable to raise or lower tubular equipment through the work center when said work center is positioned at said first horizontal position. | ||||||
| 93 | DIVERTER STABBING DOG | US14752866 | 2015-06-27 | US20160024879A1 | 2016-01-28 | Jerod C. Bushman; John B. Hankins; John A. Hoefler; Harold A. Tenorio |
| A diverter system having stabbing dogs is provided. In one embodiment, such a system includes a diverter, a housing, and a plurality of stabbing dogs coupled to the housing. The stabbing dogs are positioned to enable locking elements of the stabbing dogs to be extended into recesses in the diverter to secure the diverter within the housing. At least one of the recesses in the diverter is connected to a fluid conduit within the diverter, and at least one stabbing dog includes a fluid passage that enables fluid to be routed into the fluid conduit within the diverter through the at least one stabbing dog. Additional systems, devices, and methods are also disclosed. | ||||||
| 94 | OFFSHORE DRILLING RIG AND A METHOD OF OPERATING THE SAME | US14777325 | 2014-03-17 | US20160024852A1 | 2016-01-28 | Michael KANNEGAARD; Allan McCOLL; Jesper HOLCK |
| An offshore drilling rig comprising a drill deck, at least one primary well center and a diverter system arranged below the primary well center, a drilling support structure extending upwardly from the drill deck and above the primary well center and the other work center and a first and a second hoisting system supported by the drilling support structure and being adapted for raising or lowering a first and a second load carrier, respectively, and where the offshore drilling rig comprises a positioning system adapted for selectively positioning at least the first load carrier in at least a first or a second horizontal position different from the first horizontal position, where the first load carrier in the first horizontal position is positioned above the primary well center, and in the second horizontal position is positioned above the other work center. | ||||||
| 95 | METHOD AND APPARATUS FOR SUBSEA WELL PLUG AND ABANDONMENT OPERATIONS | US14404343 | 2014-03-27 | US20160017683A1 | 2016-01-21 | Harald Hufthammer |
| The invention provides a method and apparatus for performing a plug and abandonment operation on a subsea well. A wellhead interface module is located on a wellhead, which accommodates a volume of wellbore fluid in fluid communication with the wellbore. A system control module receives a signal from a sensor in the chamber and is configured to derive volume data relating to a change in volume of wellbore fluid in the chamber and compares the derived volume data with a volume change expected due to the removal of tubing from the wellbore. In embodiments of the invention, this enables a change in wellbore conditions to be characterised, for example a fluid influx or a fluid loss, from the volume data. The method may comprise providing wellbore fluid to the apparatus to replace fluid which enters the wellbore to occupy the volume vacated by the tubing, and/or removing or adding fluid in fluid influx/loss situations respectively. | ||||||
| 96 | Recovery valve | US14557198 | 2014-12-01 | US09228396B2 | 2016-01-05 | Sergio Yamahata; Carlos Aparecido de Oliveira |
| A tubing hanger landing system includes a tubing hanger running tool, a locking flowline to lock the tubing hanger running tool into a tubing hanger, and a lower body shear joint comprising a recovery valve. The recovery valve includes a valve body with a functional port, an operational port, a bi-directional port, and a relief port, and a valve piston positioned within the valve body and movable between an operational position and a relief position within the valve body. The functional port enables pressure to be communicated to the valve piston to move the valve piston from the operational position to the relief position, and, in the relief position, the valve piston provides fluid communication through a relief flowpath between the bi-directional port and the relief port to release pressure from the locking flowline. | ||||||
| 97 | Systems and methods for subsea drilling | US14170666 | 2014-02-03 | US09222311B2 | 2015-12-29 | Borre Fossli |
| A subsea drilling method and system controls drilling fluid pressure in the borehole of a subsea well, and separates gas from the drilling fluid. Drilling fluid is pumped into the borehole through a drill string and returned through an annulus between the drill string and the well bore and between the drill string and a riser. Drilling fluid pressure is controlled by draining fluid out of the riser or a BOP at a level between the seabed and the surface in order to adjust the hydrostatic head of drilling fluid in the riser. The drained drilling fluid and gas is separated in a subsea separator, where the gas is vented to the surface through a vent line, and the fluid is pumped to the surface via a subsea pump. A closing device and a choke line and valve can release pressure after a gas kick in the well. | ||||||
| 98 | MARINE DIVERTER SYSTEM WITH REAL TIME KICK OR LOSS DETECTION | US14710790 | 2015-05-13 | US20150330205A1 | 2015-11-19 | Lev Ring; Don M. Hannegan |
| The disclosure relates to a system and method for determining whether a kick or loss has occurred from a well in real time, wherein the well has a marine diverter having a rotating control device. The marine diverter system may measure flow rate in real time of a drilling fluid entering the wellbore and provide a means of measuring flow rate of the drilling fluid out of the wellbore and riser. The marine diverter system may further determine displacement and velocity of displacement of rig heave motion in real time and use the foregoing steps, given a known internal diameter of the riser and a known external diameter of a drill pipe, and employing a drilling fluid volume balance equation: (Volumetric flow rate-in)−(Volumetric flow rate-out)−(Change in riser annular Volume per unit time)=X, to determine whether the kick or loss has occurred in real time. | ||||||
| 99 | APPARATUS AND METHOD FOR CONTROLLING PRESSURE IN A BOREHOLE | US14404863 | 2012-10-24 | US20150275602A1 | 2015-10-01 | Ivar Kjøsnes; Nils Lennart Rolland |
| There is described a technique for drilling and controlling the fluid pressure of a borehole (2, 102) during drilling of the borehole. In embodiments of the invention, drill pipe (5) may be arranged in said borehole, the pipe being configured to provide drilling fluid in the borehole. Sealing means (14, 18, 114, 118) may be provided and arranged to sealingly abut an outer surface of the drill pipe to separate said drilling fluid in the borehole on a first side of the sealing means from a column of fluid on a second side of the sealing means. Furthermore, a subsea pump arrangement (12, 112) may be arranged under a sea surface where it receives a flow of said drilling fluid from the borehole. The pump arrangement can operate to pump drilling fluid out of the pump arrangement, and generate a fluid pressure in said drilling fluid at a location upstream of the pump arrangement, said generated pressure being less than or equal to the hydrostatic pressure of said column of fluid on said second side of the sealing means. | ||||||
| 100 | MODULAR MUD LIFT PUMP ASSEMBLY | US14186828 | 2014-02-21 | US20150240578A1 | 2015-08-27 | Ahmet DUMAN; Michael John DENK; Gretchen Aleasha HAINES |
| A method and system for lifting drilling mud from subsea to a drilling vessel, which uses a pump having a body with a chamber, and a bladder in the chamber. The bladder attaches to the body and defines water and mud sides in the chamber. A mud inlet valve allows mud into the mud side of the chamber; which moves the bladder into the water side and urges water in the water side from the chamber and through a water exit valve. Pressurized water enters the chamber through a water inlet valve, which in turn pushes the bladder and mud from the chamber through a mud exit valve. The bladder separates the mud and water as it reciprocates in the chamber. The travel of the bladder in the chamber is controlled to prevent damage from contact with the chamber. | ||||||
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