Class 175/217 - With pump

Subclass of Class 175 - Boring or penetrating the earth
Definition: Apparatus including pump means adapted to cause the drilling
No. of patents: 32
Last issue date: 05/20/2008

Number	Title	Issue Date
7373987	Method and apparatus for preventing spillage or loss of drill fluids A well bore fluid recovery system and method is disclosed for recovering a column of well bore fluid within a stand of casing before cutting the casing. The recovery system relates to a system for preventing fluids from being spilled when casing is being finished fo...	05/20/2008
7290625	Reverse-circulation drilling method and system A reverse-circulation drilling method and system includes a drill bit, a drill string having drill rods, and a rotary table or power swivel for bringing the drill bit into rotation by means of the rods. The system includes a positive-displacement pump made up of a s...	11/06/2007
7134502	Method and apparatus for preventing spillage or loss of drill fluids A well bore fluid recovery system and method for recovering a column of well bore fluid within a stand of casing before cutting the casing. The recovery system relates to a system for preventing fluids from being spilled when casing is being finished for a well bore...	11/14/2006
7025154	Method and system for circulating fluid in a well system A method for circulating drilling fluid in a well system includes drilling a substantially vertical well bore from a surface to a subterranean zone and drilling an articulated well bore from the surface to the subterranean zone. The articulated well bore is horizont...	04/11/2006
6926101	System and method for treating drilling mud in oil and gas well drilling applications A system and method for controlling drilling mud density at a location either at the seabed (or just above the seabed) or alternatively below the seabed of wells in deep water and ultra deep water applications. A base fluid of lesser density than the drilling mud re...	08/09/2005
6904982	Subsea mud pump and control system A sub-sea mud pump system includes a plurality of pump units, and each pumping unit includes a plurality of pumping elements. Each pumping element includes a pressure vessel with a first and a second chamber, a separating member between the first and second chambers...	06/14/2005
6843331	Method and apparatus for varying the density of drilling fluids in deep water oil drilling applications A method and apparatus for controlling drilling mud density at a location either at the seabed (or just above the seabed) or alternatively below the seabed of wells in deep water and ultra deep water applications combines a base fluid of lesser density than the mud ...	01/18/2005
6837313	Apparatus and method to reduce fluid pressure in a wellbore The present invention generally provides apparatus and methods for reducing the pressure of a circulating fluid in a wellbore. In one aspect of the invention an ECD (equivalent circulation density) reduction tool provides a means for drilling extended reach deep (ER...	01/04/2005
6712162	Cooling and flushing means for tools used for working rock A cooling and flushing arrangement (1) for a tool (10), has a coolant and flushing agent (2) in a closed storage tank (3), which is connected to a suction pump (4) and has a closed flushing circulation system (6) running fro...	03/30/2004
6640912	Cuttings injection system and method An automated high speed drill cuttings processing and injection module having a relatively small foot print, capable of operation in zone one hazardous environments, for injecting drill cuttings into an earth formation, capable of handling high drilling r...	11/04/2003
6591921	Horizontal boring apparatus A horizontal boring apparatus comprises a traveling framework (10) on which is arranged a boring ramp (18) for guiding a boring rod (19), a rod magazine (22) for receiving individual boring rod sections (19), a drive apparatus (24) for the travelling fram...	07/15/2003
6561269	Canister, sealing method and composition for sealing a borehole Canister, sealing method and composition for sealing a borehole. The canister includes a container with slurry inside the container, one or more slurry exits at one end of the container, a pump at the other end of the container, and a piston inside that p...	05/13/2003
6536540	Method and apparatus for varying the density of drilling fluids in deep water oil drilling applications A method and apparatus for controlling drilling mud density at or near the seabed of wells in deep water and ultra deep-water applications combines a base fluid of lesser density than the mud required at the wellhead to produce a diluted mud in the riser....	03/25/2003
6505691	Subsea mud pump and control system The invention is a subsea pump that includes pumping elements, each pumping element including a pressure vessel with a first and a second chamber therein and a separating member disposed between the first and second chambers. The first and second chambers...	01/14/2003
6457529	Apparatus and method for returning drilling fluid from a subsea wellbore An apparatus and method are provided for controlling hydrostatic pressure in drilling fluid in a subsea well. A main pump forces drilling fluid down the drill pipe, out of the end of the drill pipe, and upward in an annulus surrounding the pipe. A rotatin...	10/01/2002
6352129	Drilling system A drilling system for drilling a borehole into an earth formation is provided. The drilling system comprises a drill string extending into the borehole whereby an annular space is formed between the drill string and the borehole wall and the annular space...	03/05/2002
6325159	Offshore drilling system A system for drilling a subsea well from a rig through a subsea wellhead below the rig includes a wellhead stack which is mounted on the subsea wellhead. The wellhead stack includes at least a subsea blowout preventer stack and a subsea diverter. A drill ...	12/04/2001
6216801	Method and apparatus for providing proportional injection of additives into drilling fluids Injection of a drilling fluid additive into a drilling fluid, as the drilling fluid is being pumped into a bore hole, in direct proportion to the amount of drilling fluid being pumped....	04/17/2001
6138774	Method and apparatus for drilling a borehole into a subsea abnormal pore pressure environment An apparatus for controlling a subsea borehole fluid pressure is proposed for use with a conductor casing positioned below the mudline and within a normal pore pressure environment. The apparatus includes a pump for moving a fluid through a tubular into a...	10/31/2000
5725021	System for retrieving waste drilling mud For use with a mud pit connected to a drilling rig, a first pipe and connected pump pulls mud from the pit for use or disposal. The pit is provided with a bottom located drain line with a valve connected to an added pipe, a serially connected pump and out...	03/10/1998
5497839	Liquid-driven downhole hammer drill A drill stem arrangement and method in which the motor for providing the hammer action is in the drill stem near to the drill bit. The motor is driven by pressurised liquid and a proportion of the liquid is used for flushing drill cuttings and cooling the...	03/12/1996
5344570	Method and apparatus for removing solids from a liquid A method for removing insoluble materials from a liquid mixture, including spinning at least one centrifuge separator at a predetermined speed and pumping the mixture to the spinning centrifuge separator at a predetermined rate. The rate in which the mixt...	09/06/1994
5176211	Apparatus and method for recirculating mud when drilling under an obstacle New apparatii and processes are disclosed to create fluid continuity between opposite ends of a route drilled or bored under and/or around an obstacle. This invention allows fluids to be pumped through a reamer and a hollow swivel from either or both side...	01/05/1993
4867256	Injection of polymer chemicals into drilling mud The mud of a drilling well is treated by injecting a liquid polymer chemical into the suction of a main circulating mud pump rather than by pouring the liquid chemical into the open collar of a drill pipe joint while making a connection. This causes the m...	09/19/1989
4632194	Self-propelled saverdrill There is described a vehicle or vehicle frame including a first elongated sub-frame and a second sub-frame rotatably connected to one end of the first sub-frame for pivotal movement about the longitudinal axis of the first sub-frame. A walking beam is pro...	12/30/1986
4595343	Remote mud pump control apparatus Apparatus for controlling the operation of drilling or completion fluid pumps and a choke is disclosed. Control over the drilling or completion fluid pump can be independent of control of the choke. Control over the drilling fluid pump can be transferred ...	06/17/1986
4577700	Method and system for displacing drilling fluid from a drill string in a well drilling system A rotary well drilling system employs a drill string with a drill bit affixed at its lower end for the drilling of a borehole. Drilling fluid is circulated through the drill string to remove drill cuttings. To break out a section of drill pipe from the dr...	03/25/1986
4558744	Subsea caisson and method of installing same A subsea caisson or silo for housing wellhead equipment and methods of installing it is disclosed. A caisson which is sized to receive equipment that is to remain subsea has a closed top and open bottom. The caisson is lowered to the seabed and hydrostati...	12/17/1985
4422514	Pump for a reverse circulation rotary drilling rig A pump for a reverse circulation rotary drilling rig is described which is designed to prevent drilling fluid from coming into contact with the pump bearing. A generally cylindrical-shaped housing is secured to the lower end of the Kelly bar and is in flu...	12/27/1983
4209069	Drills with chip collectors A drill is disclosed having a shroud structure extending about a chuck and drill bit at the forward end of the tool, to receive cuttings produced by the bit, and having a receptacle preferably carried at the rear end of the drill and to which the cuttings...	06/24/1980
4149603	Riserless mud return system A system and method are disclosed which eliminates the use of a riser pipe in underwater drilling operations. The system includes a mud sump connectable to the top of a submerged wellhead and has a bottom with a mud inlet provided therein and an upwardly ...	04/17/1979
3968845	Apparatus and method for geological drilling and coring Apparatus and method for complete reverse air vacuum drilling by entrainment of chips and dust in a high velocity air stream created by applying a vacuum to the drill stem or the annulus of a drilled hole, removing the drilled particles by entrainment in ...	07/13/1976

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Class 175/217 - With pump