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Match Document Document Title
9027645 Fishing tool  
Fishing tools for retrieving objects, i.e., “fish,” lodged within a wellbore are disclosed. The fishing tool comprises a tubular member having a tubular member bore with at least one profiled...
9010427 Smart Drop-off tool and hang-off tool for a logging string  
A hang-off tool for supporting a tool inside a tubular member includes a logging string configured to generate logging data, a computing system coupled to the logging string and configured to...
8967241 Junk basket with self clean assembly and methods of using same  
A downhole tool for removing debris from fluid flowing through the downhole tool uses a screen member and wiper member, the wiper member having at least one window disposed through the inner and...
8955590 Overshot device  
A device with an overshot including a first part with an elongated body adapted to be connected to a hoisting line in one end and with a tubular opening arranged/designed to receive a spearhead in...
8851175 Instrumented disconnecting tubular joint  
A method and equipment for an instrumented tubular joint apparatus for use in a pipe string comprising an upper tubular section with a threaded connection thereabove and an axial passage for fluid...
8844630 Adjustable engagement system for tool removal and method of use  
A retrieval tool and method for retrieving a remote tool with a threaded connection from a remote location. The retrieval tool includes a rotational drive member which rotates an attachment sub...
8844618 Smart drop-off tool and hang-off tool for a logging string  
A hang-off tool for supporting a tool inside a tubular member includes a logging string configured to generate logging data, a computing system coupled to the logging string and configured to...
8813844 System and method for drilling lateral boreholes  
A drilling system for drilling a lateral borehole from a main borehole comprises a tubular conduit through which a fluid can be pumped, and a drilling assembly connected to the tubular conduit so...
8807228 Friction reduction mechanism for a downhole release assembly  
A mechanism to enhance disengagement of release assembly portions from one another when disposed in a well. The mechanism may be disposed at an internal rod of the release assembly and configured...
8789598 Jarring systems and methods of use  
Disclosed are embodiments of an adjustable jar and accelerator system and methods of use thereof. One exemplary jarring system includes a jar having a first processor configured to determine a...
8783354 Apparatus and method for adjusting spring preload in a downhole tool  
Apparatus and method for adjusting spring preloading in a downhole tool. In an apparatus, a mechanism includes a nut and a piston. The nut is configured to axially compress a spring in the...
8783353 Increased energy impact tool  
A downhole jarring tool includes a mandrel having a small diameter portion and a large diameter portion, a detent cylinder sealingly disposed around the mandrel forming an enclosure, a divider...
8746340 Fish-thru screen apparatus and method  
A down hole apparatus for filtering debris from a fluid in a well bore including a screen sub, a diverter assembly connected to the screen sub, a screen section extending from the diverter...
8727019 Safety joint with non-rotational actuation  
A method of releasing a safety joint in a subterranean well can include disconnecting a tubular string at the safety joint without rotation of the tubular string. A safety joint for use in a...
8657007 Hydraulic jar with low reset force  
A hydraulic jar for delivering impacts downhole. The jarring mechanism includes a cup-type piston that moves through a seal bore. The cup is deformable in response to fluid pressure so that it...
8590613 Overshot with dynamic seal feature  
An overshot has an articulated seal that can be set against the fish when the fish is engaged by the tool. The seal can be actuated from swelling due to exposure to well fluid or mechanically or...
8561688 Compact jar for dislodging tools in an oil or gas well  
This invention relates to a jar used to dislodge tools stuck in a well. The jar includes two housing portions movable with respect to each other. A release collet forms a portion of one of the...
8509375 Method for removing thermal sleeve from cold leg of reactor coolant system  
Disclosed is a method for removing a thermal sleeve from a cold leg of a reactor coolant system, which enables removal of an unintentionally separated thermal sleeve without implementation of a...
8499836 Electrically activating a jarring tool  
A method of using jarring tool in a wellbore, where the jarring tool is electrically activated to apply an impact force transmitted to at least another tool in the well. The method may further...
8496058 Well fishing method and system  
A well fishing method and system is described. In at least one example of the invention, a method of retrieval of material (e.g., a tubing string) having broken control or monitoring lines from a...
8453724 Tool for recovering junk and debris from a wellbore of a well  
A downhole tool incorporates a junk catcher with full body casing drift. It is made of an inner tubular member that conveys the hydraulic power or circulating fluid to rearward and outward facing...
8453727 Downhole rotational vibrator  
A jarring device includes an outer housing which defines an axial flow path therethrough. An impact rotator is retained within the housing and is rotatable therewithin between a first rotational...
8418758 Jarring tool with micro adjustment  
A jarring tool is disclosed. The tool has a segment of sub housing containing an upper stop proximate a first end thereof. An outer latch piece is connected to an upper end of the lower shaft...
8397815 Method of using wired drillpipe for oilfield fishing operations  
A method and apparatus for fishing a wellbore with wired drill pipe are provided. Embodiments of the invention advantageously identify objects for removal and signal proper attachment therewith....
8365826 Hydraulically powered fishing tool and method  
A hydraulically powered fishing tool is provided for retrieving another tool or tubular stuck in a well. A tool housing is supported in a well on a work string, and the housing encloses a...
8357639 Nanoemulsions  
Nanoemulsions have been discovered to be useful to the oil field. More particularly water-in-oil (W/O), oil-in-water (O/W) and other classes of nanoemulsions have found beneficial application in...
8347964 Releasing and recovering tool  
Apparatus and methods for selectively releasing a first wellbore component to a second wellbore component using a disconnect device. The method includes coupling a disconnect device to a...
8261829 Well fishing method and system  
A well fishing method and system is described. In at least one example of the invention, a method of retrieval of material (e.g., a tubing string) having broken control or monitoring lines from a...
8261830 Fishing tool and method  
A fishing tool includes a grapple and an exciter in vibration transmissive communication with the grapple and method.
8256509 Compact jar for dislodging tools in an oil or gas well  
This invention relates to a jar used to dislodge tools stuck in a well. The jar includes two housing portions movable with respect to each other. A release collet forms a portion of one of the...
8230932 Multifunction downhole release tool mechanism with lost motion  
Presented is a system and method for disconnecting a plurality of wireline tools from a string of wireline tools while maintaining operation of the wireline tools remaining with the string of...
8225860 Downhole jarring tool with reduced wear latch  
A jarring tool having an extensible joint connecting first and second sub ends. A first inner latch piece connects to the upper sub end, and a second outer latch piece connects to the lower sub...
8201629 Staging tool seal arrangement for gas wells  
A staging tool arrangement for gas well production assistance, comprising an elongated staging tool having an elongated upper portion and an elongated lower portion. The upper portion has a...
8191626 Downhole jarring tool  
A tool having a first lower sub end, a second upper sub end, and an extensible joint connecting the first and second sub ends. The joint has a first inner latch piece connected to the lower sub...
8191623 Slickline conveyed shifting tool system  
A shifting tool is run on slickline and has an on board power supply. Rotary motion of the motor is converted to linear motion of the shifting tool using a ball screw device. The grip is obtained...
8141634 Releasing and recovering tool  
Apparatus and methods for selectively releasing a first wellbore component to a second wellbore component using a disconnect device. The method includes coupling a disconnect device to a...
8122960 Spoolable coiled tubing spear for use in wellbores and methods of using same  
Coiled tubing spears for retrieving a section of cut coiled tubing comprises a mandrel having attachment members, e.g., spears, at upper and lower ends for facilitating connection of the upper end...
8091935 Internal release connector and method  
A tubing connection release system. The system includes, a male connector having a profile at one end thereof and receptive to a tubular at the other end thereof, a female connector receptive to a...
8074716 Tension-activated fluid bypass device and associated method  
A fluid bypass tool that can be incorporated into a fishing arrangement between a fluid-operated latching tool and a fluid-operated jarring tool. The latching tool is actuated with fluid from the...
8066078 Overshot tool and method  
An overshot tool is provided for interconnecting and sealing between a lower tubular (C) in a well and an upper tubular (30). A tubular expander sleeve (36) and an overshot sleeve (26) are...
8048828 Spotting fluid compositions and associated methods  
Fluids and associated methods useful in subterranean applications are provided. More particularly, methods of reducing drill string sticking are provided, which include: providing a spotting fluid...
8048829 Spotting fluid compositions and associated methods  
Fluids and associated methods useful in subterranean applications are provided. Compositions are provided that may be useful in subterranean applications for addressing, among other things, drill...
8002032 Hydraulic overshot with removable setting and testing core  
A hydraulic overshot apparatus designed to slide over plain end tubing and set by applying hydraulic fluid, under pressure, via a hydraulic setting port, into a center chamber which allows...
8002036 Internal release connector and method  
A tubing connection release system. The system includes, a male connector having a profile at one end thereof and receptive to a tubular at the other end thereof, a female connector receptive to a...
7992636 Device and method for retrieving debris from a well  
A device for use in retrieving debris from a well, including an elongate body; a main bore extending part way along a length of the body; an opening towards a lower end of the body; a main fluid...
7980310 Backoff sub and method for remotely backing off a target joint  
A backoff sub includes a housing and a backoff facilitator at least partially within the housing. The backoff sub is a part of the string that is stuck and is capable of adding energy to the...
7980311 Devices, systems and methods for equalizing pressure in a gas well  
Devices, systems and methods for equalizing pressure in a gas well are provided. A jar device is coupled to a pump deployed in a gas well between areas of low pressure and high pressure. The jar...
7946348 Rotation tool  
A downhole rotation tool comprises a housing rotatable and axially slideable in relation to a gear shaft. The gear shaft is located interior of the housing. A tube gear is located intermediate the...
7931085 Internal release connector and method  
A tubing connection release system. The system includes, a male connector having a profile at one end thereof and receptive to a tubular at the other end thereof, a female connector receptive to a...
7905289 Double-acting jar compounder  
A double-acting compounder is disclosed having a first end and a second end, and comprising an outer housing, an upper mandrel, and a lower mandrel. The outer housing defines the first end. The...

Matches 1 - 50 out of 317 1 2 3 4 5 6 7 >