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| Number | Title | Issue Date |
| 8025108 | Subterranean methods of processing hydrocarbon fluid-containing deposits and hydrocarbon recovery arrangements for recovering hydrocarbon-containing fluid from hydrocarbon-containing deposits A subterranean method of processing a hydrocarbon fluid-containing deposit includes, from a subterranean room, providing a borehole into a deposit containing formation fluid comprising fluid hydrocarbon. The borehole has a first end at a wall of the subterranean roo... | 09/27/2011 |
| 7699124 | Single packer system for use in a wellbore A technique involves collecting formation fluids through a single packer having at least one drain located within the single packer. The single packer is designed with an outer layer that expands to create a seal with a surrounding wellbore wall. The drain is locate... | 04/20/2010 |
| 7314101 | Inner core barrel head assembly for core tube within a drill string Inner core barrel head assembly (10) includes an upper latch body (24), a plurality of latching balls (26) which are retained in the latch body (24) and a locking sleeve (28) disposed within the latch body (24). The sleeve (... | 01/01/2008 |
| 7027968 | Method for simulating subsea mudlift drilling and well control operations A method of simulating subsea mudlift drilling well control operations using a computer system. The method includes simulating a drilling circulation system. The simulation includes simulating drilling the wellbore at a selected rate of penetration, and the simulati... | 04/11/2006 |
| 7011167 | Device for sealing a drill hole and for discharging drillings or stripped extraction material In a device for sealing a bore hole and discharging drill cuttings and stripped excavation material, including a housing adapted to receive sealing elements and an opening capable of being connected to the bore hole, one side wall of the housing is provided with at ... | 03/14/2006 |
| 6941804 | Determining the PVT properties of a hydrocarbon reservoir fluid A method of determining an in situ PVT property of a hydrocarbon reservoir fluid that is present in a hydrocarbon-bearing formation layer traversed by a borehole, which method involves the steps of: a) calculating along the hydroca... | 09/13/2005 |
| 6938503 | Lysimeter apparatus A suction lysimeter for sampling subsurface liquids includes a lysimeter casing having a drive portion, a reservoir portion, and a tip portion, the tip portion including a membrane through which subsurface liquids may be sampled; a fluid conduit coupled in fluid flo... | 09/06/2005 |
| 6401840 | Method of extracting and testing a core from a subterranean formation A coring apparatus permitting the taking of a non-rotating core sample and testing of same, as by NMR, prior to breakage and ejection from the apparatus. A core barrel is suspended from a rotating outer sleeve by one or more bearing assemblies which permi... | 06/11/2002 |
| 5785131 | Pressurized formation sample collection A borehole drilling apparatus has a jacket attachable to a well head and through which a drill rod passes and which carries pressurized drilling fluid to a working end of the drill rod and out into an annulus of the borehole. The jacket has a drill rod se... | 07/28/1998 |
| 5469917 | Use of capillary-membrane sampling device to monitor oil-drilling muds A method for monitoring oil-drilling mud. A supported capillary membrane (SCMS) device having a support member, a capillary membrane permeable to hydrocarbons, and flights on the surface of the support member within which the capillary member is supported... | 11/28/1995 |
| 4825963 | High-pressure waterjet/abrasive particle-jet coring method and apparatus A simple low-cost and highly passive bitless nonrotational nondeviating jam-proof thin-kerf Newtonian hydraulics retrievable core-sampling method and apparatus that advances its circular core kerf through the rock by a combination of high-pressure droplet... | 05/02/1989 |
| 4659257 | Method for making a hole in the ground, and hollow body open at the lower and upper sides and adapted for use in this method A method and a hollow body for forming a hole in the ground are disclosed. After the hollow body has been brought to the desired depth in the ground high pressure fluid is jetted through spray nozzles into the hollow body near the lower end thereof. The f... | 04/21/1987 |
| 4168755 | Nutating drill bit A nutating earth drilling bit which is adapted for use in drilling systems in which the drilling fluid and cuttings are transported from bit to surface through the interior of the drill string. The nutating bit is provided with a toroidal cutting member a... | 09/25/1979 |
| 4100981 | Earth boring apparatus for geological drilling and coring Apparatus for concentric multi-string drilling with reverse air vacuum for the entrainment of chips and dust, selectively controlled through a plurality of annuli defined by the multiplicity of drill strings adapted to individually and/or cooperatively op... | 07/18/1978 |
| 4098361 | Drilling head connection for use in a reverse circulation system The invention relates to a drilling head connection specifically designed for reverse circulation operation and the connection can be screwed on a double pipe system in such a way that the drilling fluid injected into the annular space passes through the ... | 07/04/1978 |
| 4098698 | Automatic recovery system for plugs and excavation materials The present invention relates to a system for automatically recovering the entirety of the excavated materials in the order in which they are raised to the surface. The excavated materials being delivered through the central passage of a double pipe syste... | 07/04/1978 |
| 4066138 | Earth boring apparatus employing high powered laser Earth boring apparatus is mounted above ground and directs an annulus of high powered laser energy downwardly for boring a cylindrical hole by fusing successive annular regions of the stratum to be penetrated at a power level that shatters and self-ejects... | 01/03/1978 |
| 4031973 | Placer mining tool This invention relates to placer mining and more particularly to a novel bit adapted for use in stream beds, dependably to break up and deliver to and through a sluice box a quantity of divided, water-borne gravel, sand, clay and ore for the conventional ... | 06/28/1977 |
| 3991838 | Drill sampling diversion unit A self-centralizing sealed diverter for aiding the surface collection of underground samples including a rigid casing driven into the ground to line a partially drilled hole, a rigid chamber mounted above and firmly but removably attached to the casing to... | 11/16/1976 |
| 3981371 | Core sampling drill A core sampling drill comprising a drill bit having a series of cutting surfaces arranged around a central core hole, the upper end of the drill bit being threaded so that it can be fitted to the lower end of a tubular drill stem, a core tube positioned w... | 09/21/1976 |
| 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 |
| 3941196 | Percussive air hammer and core bit apparatus An airhammer and core bit apparatus including a housing and a hammer piston reciprocable in the housing for delivering repeated impact blows to an anvil secured to or forming part of a core bit which produces a core in a bore hole being drilled. A central... | 03/02/1976 |
