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Class Information
Number: 166/335
Name: Wells > Submerged well
Description: Process, apparatus, or device including a step of, or means for, assembling the components of a well or including the component parts of such a well, the discharge surface of which well is located below the surface of a body of water.










Sub-classes under this class:

Class Number Class Name Patents
166/338 Connection or disconnection of submerged members remotely controlled 211
166/364 Including disaster feature 104
166/351 Means removably connected to permanent well structure 112
166/366 Multiple wells 152
166/367 Riser 413
166/350 Submerged, buoyant wellhead or riser 221
166/336 Testing 119
166/368 Wellhead 475
166/365 With provision for disassembly 80
166/363 With safety or emergency shutoff 148


Patents under this class:
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Patent Number Title Of Patent Date Issued
8657011 Underwater power generation Feb. 25, 2014
8651189 Blowout recovery valve Feb. 18, 2014
8653985 Shutdown system Feb. 18, 2014
8555977 Remotely operated underwater redirection plenum chamber for spill response Oct. 15, 2013
8540028 Autonomous junk collecting sleeve for a riser Sep. 24, 2013
8534363 Methods and devices for restoring control and resuming production at an offshore oil well following an uncontrolled fluid release after an explosion Sep. 17, 2013
8528666 Method and apparatus for disposal of cuttings Sep. 10, 2013
8500419 Subsea pumping system with interchangable pumping units Aug. 6, 2013
8474536 Method and alignment system for killing an uncontrolled oil-gas fountain at an offshore oil platform using a telescopic rod assembly Jul. 2, 2013
8430165 Increasing the viscosity of viscoelastic fluids Apr. 30, 2013
8430167 Arcuate control line encapsulation Apr. 30, 2013
8413722 Method for circulating a fluid entry out of a subsurface wellbore without shutting in the wellbore Apr. 9, 2013
8281862 Testing subsea umbilicals Oct. 9, 2012
8267201 Method and apparatus for disposal of cuttings Sep. 18, 2012
8256519 System and method for sub-cooling hydrocarbon production fluid for transport Sep. 4, 2012
8215028 Slurrification process Jul. 10, 2012
8201634 Subsea cementing plug system with plug launching tool Jun. 19, 2012
8191635 Hole opener with hybrid reaming section Jun. 5, 2012
8179279 Method and device for producing hydrocarbons using wireless communication May. 15, 2012
8162064 Autonomous junk collecting sleeve for a riser Apr. 24, 2012
8096371 Method and apparatus for disposal of cuttings Jan. 17, 2012
8096365 Hydraulic control system Jan. 17, 2012
8003573 Method for remediating flow-restricting hydrate deposits in production systems Aug. 23, 2011
7997335 Jet pump with a centrifugal pump Aug. 16, 2011
7963335 Subsea hydraulic and pneumatic power Jun. 21, 2011
7886848 Method and apparatus for disposal of cuttings Feb. 15, 2011
7806186 Submersible pump with surfactant injection Oct. 5, 2010
7759827 DC voltage converting device having a plurality of DC voltage converting units connected in series on an input side and in parallel on an output side Jul. 20, 2010
7669670 Procedure for installing horizontal drains for uptake of sea water Mar. 2, 2010
7650943 Hydraulic control system Jan. 26, 2010
7506702 Method and apparatus for disposal of cuttings Mar. 24, 2009
7481270 Subsea pumping system Jan. 27, 2009
7424917 Subsea pressure compensation system Sep. 16, 2008
7407022 Apparatus for pumping drill cuttings and dual cylinder positive displacement pump for moving drill cuttings and method of use Aug. 5, 2008
7387166 Electrically operated actuation tool for subsea completion system components Jun. 17, 2008
7328741 System for sensing riser motion Feb. 12, 2008
7259688 Wireless reservoir production control Aug. 21, 2007
7249634 Apparatus for production in oil wells Jul. 31, 2007
7234524 Subsea chemical injection unit for additive injection and monitoring system for oilfield operations Jun. 26, 2007
7137451 Controlling and/or testing a hydrocarbon production system Nov. 21, 2006
7123162 Subsea communication system and technique Oct. 17, 2006
6826520 Method of upscaling permeability for unstructured grids Nov. 30, 2004
6817417 Debris cap Nov. 16, 2004
6725924 System and technique for monitoring and managing the deployment of subsea equipment Apr. 27, 2004
6702025 Hydraulic control assembly for actuating a hydraulically controllable downhole device and method for use of same Mar. 9, 2004
6640900 Method and apparatus to monitor, control and log subsea oil and gas wells Nov. 4, 2003
6517286 Method for handling liquified natural gas (LNG) Feb. 11, 2003
6457528 Method for preventing critical annular pressure buildup Oct. 1, 2002
6454011 Method and system for moving equipment into and through a conduit Sep. 24, 2002
6412562 Electrical submersible pumps in the riser section of subsea well flowline Jul. 2, 2002

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