Quotables
"To place a man in a multi-stage rocket and project him into the controlling gravitational field of the moon where the passengers can make scientific observations, perhaps land alive, and then return to earth--all that constitutes a wild dream worthy of Jules Verne. I am bold enough to say that such a man-made voyage will never occur regardless of all future advances."
Lee deForest, American radio pioneer ; 1957
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| Number | Title | Issue Date |
| 8181718 | Perforating gun gravitational orientation system A perforating gun gravitational orientation system includes a perforating gun and a swivel device connected to the perforating gun to permit rotation of the perforating gun within casing, and the perforating gun spaced apart from the casing by the swivel device. Ano... | 05/22/2012 |
| 8066083 | System and method for dynamically adjusting the center of gravity of a perforating apparatus A perforating apparatus (190) used to perforate a subterranean well. The perforating apparatus (190) includes a generally tubular gun carrier (106) and a charge holder (192) rotatably mounted within the gun carrier (106). At least ... | 11/29/2011 |
| 7886842 | Apparatus and method for orienting a wellbore servicing tool A wellbore servicing apparatus, comprising a first mandrel movable longitudinally along a central axis and rotatable about the central axis, an orienting member configured to selectively interfere with movement of the first mandrel along the central axis, and a seco... | 02/15/2011 |
| 7409993 | Weight spacer apparatus A weight spacer apparatus has a carrier which is tubular in shape and a spacer tube which is also tubular in shape for insertion into the carrier. The weight spacer apparatus also has a plurality of weight bars which may be inserted into the spacer tube after the sp... | 08/12/2008 |
| 7357177 | Restriction tolerant packer cup The present invention relates to a packer cup 5 having a deformable leading edge 20 which moves away from well bore or casing obstructions as the packer cup 5 is moved into a well bore. The anaxisymmetric deformable leading edge 20 can be... | 04/15/2008 |
| 7350448 | Perforating apparatus, firing assembly, and method A firing assembly for activating a perforating device comprising a module having a first chamber and a second chamber. The firing assembly comprises a firing head for transferring ballistic energy to the perforating device, said firing head having a detonator and a ... | 04/01/2008 |
| 7284489 | Casing conveyed well perforating apparatus and method Disclosed is a device and method for externally perforating a well-bore casing. The perforating apparatus is attached to the outside of the casing itself and is conveyed along with the casing when it is inserted into the well bore. The perforation is accomplished us... | 10/23/2007 |
| 7284601 | Casing conveyed well perforating apparatus and method Disclosed is a device and method for externally perforating a well-bore casing. The perforating apparatus is attached to the outside of the casing itself and is conveyed along with the casing when it is inserted into the well bore. The perforation is accomplished us... | 10/23/2007 |
| 7278491 | Perforating gun connector Controlled Buoyancy Perforating technology for highly deviated and substantially horizontal wellbores may include long perforating guns assembled on a rig floor from a multiplicity of light weight and highly engineered shaped charge carrier joints. Tubular housings ... | 10/09/2007 |
| 7246548 | Well perforating gun Embodied herein is a perforating gun wall that withstands short, high energy pulses of an explosion retained within a loading tube with numerous explosive shaped charges. The perforating gun wall includes two or more layers with an impact strength sufficient to main... | 07/24/2007 |
| 7204308 | Borehole marking devices and methods To reduce the surveying error in a wellbore, the creation of several reference points within a borehole is carried out by physically placing borehole markers in the borehole casing, the borehole wall or in the formation itself, and providing an accurate reference of... | 04/17/2007 |
| 7152680 | Slickline power control interface An apparatus, method, and system for use in operating an electric downhole tool on a non-conductive support line (slickline) by converting a battery voltage to an output voltage suitable for operating the tool. In response to receiving a trigger signal, the output v... | 12/26/2006 |
| 7147060 | Method, system and apparatus for orienting casing and liners A method and system are provided for installing an oriented conduit section in a well-bore having a substantially non-vertical axis. In one example, the system comprises: means for inserting a conduit a the well-bore, wherein the conduit comprises a section to be or... | 12/12/2006 |
| 7114564 | Method and apparatus for orienting perforating devices The present invention provides an apparatus and method of orienting perforating gun strings conveyed on a tool string. One embodiment of the present invention provides an orienting weight provided in a portion of the perforating device, such as the shaped charge, th... | 10/03/2006 |
| 7055421 | Well perforating gun A perforating device having a longitudinal axis comprising: a loading tube having an explosive charge; a first layer slidable, non fixedly, and removeably disposed over the loading tube; and at least one outer layer in fixed engagement over the first layer and where... | 06/06/2006 |
| 7044236 | Shot direction indicating device One embodiment of the present invention discloses a shot indication device that indicates the orientation of a downhole tool that is inside of a wellbore at a particular time. The shot indication device can also be used to determine the orientation of a perforating ... | 05/16/2006 |
| 7025089 | System for accurately measuring choke position The system for accurately measuring choke position includes a choke position indicator; a choke adapted to control the flow of high pressure fluids during completion or drilling of a well, wherein the distance between the choke's gate to the choke's seat determines ... | 04/11/2006 |
| 7000699 | Method and apparatus for orienting perforating devices and confirming their orientation The present invention provides an apparatus and method of orienting perforating gun strings. One embodiment of the present invention provides an orienting weight provided in a portion of the perforating device, such as the shaped charge, the loading tube or the gun ... | 02/21/2006 |
| 7000697 | Downhole measurement apparatus and technique A system that is usable with a subterranean well that has a casing includes an apparatus that is associated with production of fluid from the well and is located downhole in the well in a passageway of the casing. The system also includes a sensor that is located do... | 02/21/2006 |
| 6962202 | Casing conveyed well perforating apparatus and method Disclosed is a casing conveyed perforating apparatus and method for externally perforating a wellbore casing. The perforating apparatus is attached to the outside of the casing and is conveyed along with the casing when it is inserted into the wellbore. The perforat... | 11/08/2005 |
| 6942033 | Optimizing charge phasing of a perforating gun A technique that is usable with a subterranean well includes orienting shaped charges of a perforating gun to extend partially around a longitudinal axis of the gun. The perforating gun is oriented in the well to direct the shaped charges away from a water boundary.... | 09/13/2005 |
| 6937023 | Passive ranging techniques in borehole surveying A method for determining the location of a target subterranean structure from within an adjacent borehole is disclosed which uses first and second gravity measurement devices disposed at corresponding first and second positions in the adjacent borehole and a magneti... | 08/30/2005 |
| 6926096 | Method for using a well perforating gun The invention relates to a method to use a perforating gun in oil and natural gas wells, comprising: a perforating gun with a loading tube and explosive charge; the gun comprises: a first layer disposed over the loading tube and at least one outer layer in engagemen... | 08/09/2005 |
| 6843318 | Method and system for determining the position and orientation of a device in a well casing A method and system for activating a device at a particular orientation in a casing are disclosed. The casing has a bias, for example a lower side due to tilt, that defines a default angle in the casing, for example a point along a wall of the casing where objects w... | 01/18/2005 |
| 6758124 | Unique phasings and firing sequences for perforating guns A unique phasing pattern is provided that maximizes the effective perforation geometry of a wellbore. The improvement overcomes the problems associated with multi-phase guns of the past that failed to account for the fact that the gun rested on the low side of the c... | 07/06/2004 |
| 6684954 | Bi-directional explosive transfer subassembly and method for use of same A bi-directional explosive transfer subassembly (56) for coupling two explosive tools (52, 54) comprises first (74, 78) and second (76, 80) explosive carrying members that respectively define first (82, 86) and second (84) explosive cavities. A ball end (... | 02/03/2004 |
| 6679327 | Internal oriented perforating system and method One embodiment of the present invention discloses a system and method for orienting perforating guns inside of slanted or deviated wellbores. The invention involves adding a weight inside of the guns to gravitate the gun to a specified orientation. The we... | 01/20/2004 |
| 6672405 | Perforating gun assembly for use in multi-stage stimulation operations A perforating gun assembly for use in perforating multiple intervals of at least one subterranean formation intersected by a cased wellbore and in treating the multiple intervals using a diversion agent, such as ball sealers. In one embodiment, the appara... | 01/06/2004 |
| 6523449 | Perforating gun A technique includes arranging perforating charges of a perforating gun into groups of adjacent perforating charges. Each perforating charge of each group is aligned in a direction associated with the group. The groups are oriented to form a phasing for t... | 02/25/2003 |
| 6401818 | Wellbore perforation method and apparatus A method and apparatus is described for increasing hydrocarbon production from a production well by determining a bedding plane (permeability anisotropy) of a hydrocarbon bearing formation and using a perforating tool to form in the formation holes having... | 06/11/2002 |
| 6386288 | Casing conveyed perforating process and apparatus A process and apparatus for completing a subterranean well bore in at least one subterranean formation. At least one perforating gun assembly is positioned on the outside of casing in a subterranean well bore. A suitable signal, such as a hydraulic, elect... | 05/14/2002 |
| 6378607 | Method and system for oriented perforating in a well with permanent sensors A method and system is provided for perforating a casing in a hydrocarbon well so as to avoid perforating in a direction where a cable resides. A mass of metallic material is clamped to the casing at a predetermined offset angle with respect to the cable.... | 04/30/2002 |
| 6298915 | Orienting system for modular guns A stinger is fabricated with an orientating key. The stinger is lowered into a wellbore and remains atop a downhole assembly. The angular orientation of stinger with respect to the downhole assemble is also adjustable prior to entering the wellbore. The s... | 10/09/2001 |
| 6283214 | Optimum perforation design and technique to minimize sand intrusion The present Invention relates to novel devices and methods to minimize the production of sand in subterranean environments; in particular, in poorly consolidated formations, sand is often co-produced along with the desired fluid (e.g., oil); sand producti... | 09/04/2001 |
| 6173773 | Orienting downhole tools A method and apparatus of orienting a tool in a wellbore includes running an orientation string into the wellbore, the orienting string including a positioning device, a measurement device (e.g., a gyroscope), and the tool. The orientation string is posit... | 01/16/2001 |
| 6032739 | Method of locating wellbore casing collars using dual-purpose magnet A method for sensing the location of a casing collar within a wellbore and for orientating a tool circumferentially and radially employs the use of a compact dual-purpose magnet. The method includes offsetting the position of the magnet relative to the to... | 03/07/2000 |
| 6003599 | Azimuth-oriented perforating system and method An apparatus for positioning a tool, such as a perforating gun, in a wellbore to orient the tool in a desired direction. An anchor having a first reference terminal is set in the wellbore, the first reference terminal pointing in a known direction. A seco... | 12/21/1999 |
| 5964294 | Apparatus and method for orienting a downhole tool in a horizontal or deviated well A tool for performing a downhole function in a horizontal or highly deviated well has a downhole structure with a longitudinal axis and constructed to turn about the axis in response to a moment applied about the axis. The structure includes at least one ... | 10/12/1999 |
| 5816343 | Phased perforating guns A perforating gun having a base structure made of a deformable material. The base structure includes support rings integrally attached to one another by connector portions. The capsule charges are mounted in corresponding support rings, and each support r... | 10/06/1998 |
| 5603379 | Bi-directional explosive transfer apparatus and method A bi-directional explosive transfer apparatus for use in connecting and orienting perforating guns in a well. The apparatus includes a connector having first and second housing portions which are pivotally attached to one another. First and second explosi... | 02/18/1997 |
