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Simon Newcomb, astronomer ; Said in 1902, less than two years before the first flight at Kitty Hawk
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| Number | Title | Issue Date |
| 8157006 | Telescopic fracturing isolation sleeve The disclosure provides a fracturing isolation sleeve for a wellhead assembly including a fracturing adapter and tubing head. In at least one embodiment, the sleeve can telescopic to different lengths to fit different assemblies without necessitating switching the s... | 04/17/2012 |
| 8151874 | Thermal recovery of shallow bitumen through increased permeability inclusions Systems and methods for thermal recovery of shallow bitumen using increased permeability inclusions. A method of producing hydrocarbons from a subterranean formation includes the steps of: propagating at least one generally planar inclusion outward from a wellbore i... | 04/10/2012 |
| 8113275 | Multipart frac head with replaceable components A multipart frac head with removable components permits the frac head to be refurbished in the field. A bottom leg and inlet ports of the multipart frac head can be replaced. ... | 02/14/2012 |
| 8061421 | Borehole seismic pulse generation using rapid-opening valve During a surge-pulsing operation in a borehole (e.g an oil-well undergoing remediation) liquid is stored under pressure upstream of a valve, and then released through the valve suddenly enough to create a seismic wave, which propagates into the formation around the ... | 11/22/2011 |
| 8016032 | Well treatment device, method and system System, devices, and methods are described relating to the treatment (e.g., perforating, fracturing, foam stimulation, acid treatment, cement treatment, etc.) of well-bores (e.g., cased oil and/or gas wells). In at least one example, a method is provided for treatme... | 09/13/2011 |
| 7900697 | Fracturing isolation sleeve An apparatus operatively coupled to a well having a production casing positioned therein, the apparatus including a first device having and internal bore, a second device having an internal bore, and a fracture isolation sleeve disposed at least partially within the... | 03/08/2011 |
| 7841396 | Hydrajet tool for ultra high erosive environment The present invention relates to an improved method and system for perforating, slotting, and cutting steel and subterranean rock; and also for fracturing a subterranean formation to stimulate the production of desired fluids therefrom. The invention involves a flui... | 11/30/2010 |
| 7828053 | Multipart frac head with replaceable components A multipart frac head with replaceable components permits the frac head to be refurbished in the field. In one embodiment, a bottom leg of the multipart frac head is replaceable. In another embodiment, inlet ports of the frac head are also replaceable. ... | 11/09/2010 |
| 7762324 | Bypass crossover sub selector for multi-zone fracturing processes Fracturing tools for fracturing multiple zones of a wellbore are disclosed. In certain embodiments, the fracturing tools comprise two or more crossover subs coupled together and having a crossover sub window alignment assembly operatively associated with either an i... | 07/27/2010 |
| 7743824 | Method and apparatus for isolating a wellhead for fracturing A wellhead assembly to seal to a production casing including one or more pressure-containing wellhead body members defining a vertical bore, with the lowermost of the wellhead body members sealing to the production casing. A fracturing isolation tool is sealed in th... | 06/29/2010 |
| 7735551 | Method and system for fracturing subterranean formations with a proppant and dry gas A method and system for stimulating underground formations is disclosed. The method includes injecting pressurized gas and low concentrations of proppant material at a rate and pressure sufficient to fracture the formation and allow for placement of the proppant in ... | 06/15/2010 |
| 7703510 | Interventionless multi-position frac tool Fracturing tools for use in oil and gas wells are disclosed. The fracturing tools have a run-in position and two operational positions. A sleeve disposed in the bore of the fracturing tool comprises a sleeve port alignable with a first port in the housing of the fra... | 04/27/2010 |
| 7681635 | Methods of fracturing sensitive formations An example of a method includes providing a hydrajetting tool in a well bore in a formation; injecting a fluid through the tool into a first region of the formation at a velocity sufficient to form one or more perforation tunnels; maintaining the flow of fluid into ... | 03/23/2010 |
| 7637317 | Frac gate and well completion methods Methods and apparatus are provided for oil and gas well completions without conventional perforations or jet cutting. One or more frac gate tool(s) are included in the production casing string or liner which is cemented in the hole. The frac gates have a sleeve that... | 12/29/2009 |
| 7614448 | Fracturing isolation sleeve An apparatus operatively coupled to a well having a production casing positioned therein, the apparatus including a first device having and internal bore, a second device having an internal bore, and a fracture isolation sleeve disposed at least partially within the... | 11/10/2009 |
| 7490666 | Fracturing isolation sleeve An apparatus operatively coupled to a well having a production casing positioned therein, the apparatus including a first device having and internal bore, a second device having an internal bore, and a fracture isolation sleeve disposed at least partially within the... | 02/17/2009 |
| 7441595 | Method and apparatus for single-run formation of multiple lateral passages from a wellbore A method and apparatus for forming multiple lateral passages from a wellbore into a subsurface earth formation to facilitate enhancement of the production of oil, gas, heavy oil or minerals from the formation. A plurality of lateral passages are formed from a wellbo... | 10/28/2008 |
| 7392843 | Method of treating subterranean formations to enhance hydrocarbon production using proppants A method of enhancing the flow of hydrocarbon fluids from small flow conduits (12) in a subterranean reservoir rock formation (10) that have traditionally not been propped in association with a fracturing treatment of the formation (10), the met... | 07/01/2008 |
| 7353876 | Self-degrading cement compositions and methods of using self-degrading cement compositions in subterranean formations Methods of stimulating subterranean formations are provided. More particularly, methods of fracturing subterranean formations using a fracturing fluid comprising a self-degrading cement composition are provided. An example of a method is a method of treating a subte... | 04/08/2008 |
| 7337844 | Perforating and fracturing In a system and method of fracturing a subterranean formation, fluid for perforating is received in a downhole tool through a tubing string, the downhole tool residing in a wellbore. A wall of the wellbore is perforated proximate the downhole tool. A fluid for fract... | 03/04/2008 |
| 7308934 | Fracturing isolation sleeve An apparatus operatively coupled to a well having a production casing positioned therein, the apparatus including a first device having and internal bore, a second device having an internal bore, and a fracture isolation sleeve disposed at least partially within the... | 12/18/2007 |
| 7287592 | Limited entry multiple fracture and frac-pack placement in liner completions using liner fracturing tool The present invention is directed to a method and apparatus for fracturing a subterranean formation which use a liner fracturing tool. The liner fracturing tool consists of a liner, with at least one jet extending through the liner. During fracturing operations, fra... | 10/30/2007 |
| 7243723 | System and method for fracturing and gravel packing a borehole A system and method for fracturing an earth formation surrounding a borehole includes an elongate conduit positioned in the borehole. A packer assembly is provided about the conduit and is adapted to seal an annulus between the conduit and the borehole. A packing pa... | 07/17/2007 |
| 7228907 | High energy gas fracturing charge device and method of use A high energy gas fracturing device, adapted to be lowered into a well. The device comprises a closed tube made of strong material, sized to fit into the well and having at least one sidewall, which defines a set of openings. A set of closure elements seal the openi... | 06/12/2007 |
| 7213641 | Fracturing head with replaceable inserts for improved wear resistance and method of refurbishing same Fracturing heads with one or more replaceable wear-resistant inserts have annular sealing elements for inhibiting fracturing fluids from circulating between the inserts and a main body of the fracturing head. Worn inserts and degraded sealing elements are easily rep... | 05/08/2007 |
| 7213651 | Methods and compositions for introducing conductive channels into a hydraulic fracturing treatment Methods for the treatment of subterranean wells involving injecting a first fracturing fluid into a formation, and then injecting at least a second fracturing fluid into the formation in order to create extended conductive channels through a formation are described.... | 05/08/2007 |
| 7185704 | Service tool with flow diverter and associated method A downhole service tool is provided that may include a body having an interior passageway, at least one exit port through which fluid may flow from the interior passageway to an exterior of the tool, and at least one diverting channel adapted to cause fluid exiting ... | 03/06/2007 |
| 7185703 | Downhole completion system and method for completing a well A system for completing a well having casing (34) includes a perforating assembly (38) and a tubing string assembly (40). The tubing string assembly (40) including a pair of seal assemblies (56, 74), a production screen assembly ( | 03/06/2007 |
| 7159660 | Hydrajet perforation and fracturing tool Methods and apparatus for fracturing a subterranean formation which use a fracturing tool. The fracturing tool includes a hydrajet tool, with at least one fluid jet and at least one fracturing port extending through the liner. The fracturing tool further includes a ... | 01/09/2007 |
| 7152677 | Method and gravel packing open holes above fracturing pressure The present invention provides a method for gravel packing a open-hole wellbore having a filter cake, comprising pumping a gravel slurry into a first portion of an annulus between the wellbore and a screen, at a sufficient rate and pressure to form at least a first ... | 12/26/2006 |
| 7108060 | Fracturing different levels within a completion interval of a well Method and apparatus for fracturing different levels of a completion interval in a well. A workstring lowers a fracturing string which, in turn, is comprised of a base pipe which is blank except for perforated sections spaced along its length. Screen may be provided... | 09/19/2006 |
| 7104328 | Method and apparatus for hydrating a gel for use in a subterranean well The present invention relates to a method and system for hydrating a gel for treating a wellbore penetrating a subterranean formation. The method includes directing a base fluid through an inlet into a mixer having an inner chamber housing a plurality of impellors e... | 09/12/2006 |
| 7096954 | Method and apparatus for placement of multiple fractures in open hole wells A method and apparatus is provided for created multiple fractures in a subterranean formation with a single, continuous treatment operation. A plurality of burst disk assemblies are included, each having an independent burst pressure and corresponding to a specific ... | 08/29/2006 |
| 7090153 | Flow conditioning system and method for fluid jetting tools According to one embodiment of the invention, a flow conditioning system for fluid jetting tools includes a housing having a plurality of jet nozzle openings and a fluid straightener disposed within the housing. The fluid straightener is defined by one or more vanes... | 08/15/2006 |
| 7073589 | System for fracturing wells using supplemental longer-burning propellants A system for fracturing wells uses a primary propellant charge to initially produce pressures within the well in excess of the maximum fracture extension pressure of the surrounding formation, but below that which would cause damage to the well. A supplemental prope... | 07/11/2006 |
| 7066264 | Method and apparatus for treating a subterranean formation A service/completion liner having a plurality of downhole selectable indicating tools and being used in sand control (gravel pack) placement systems in conjunction with a straddle packer service tools or with conventional crossover type service tools. Each indicatin... | 06/27/2006 |
| 7059407 | Method and apparatus for stimulation of multiple formation intervals The invention discloses methods of, as well as apparatus and systems for, perforating and treating multiple intervals of one or more subterranean formations intersected by a wellbore by deploying within said wellbore a bottom-hole assembly (“BHA”) having a perfo... | 06/13/2006 |
| 6957701 | Method and apparatus for stimulation of multiple formation intervals The invention discloses methods of, as well as apparatus and systems for, perforating and treating multiple intervals of one or more subterranean formations intersected by a wellbore by deploying within said wellbore a bottom-hole assembly (“BHA”) having a perfo... | 10/25/2005 |
| 6904970 | Cementing manifold assembly A cementing manifold is disclosed that preferably includes: modular housings that can be stacked together and interconnected to add multi-dart or multi-sphere capability; identical, interchangeable valves; internal bypass capability; a minimum number of protrusions ... | 06/14/2005 |
| 6883610 | Straddle packer systems The present invention relates to straddle packer systems and methods of using them for downhole isolation of zones for fracturing treatment. More specifically, the system includes upper and lower seal systems having resiliently flexible sealing elements hydraulicall... | 04/26/2005 |