Matches 1 - 50 out of 291 1 2 3 4 5 6 >


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US20110220357 Section Mill and Method for Abandoning a Wellbore  
A method for milling a tubular cemented in a wellbore includes deploying a bottomhole assembly (BHA) into the wellbore through the tubular, the BHA comprising a window mill; and extending arms of...
US20140251615 WINDOW MILLING SYSTEMS  
A window milling system can include a window mill having selectively retractable and extendable blades, and a whipstock assembly having a receptacle therein, the window mill being secured relative...
US20130153224 METHODS OF CONTROLLABLY MILLING A WINDOW IN A CASED WELLBORE USING A PRESSURE DIFFERENTIAL TO CAUSE MOVEMENT OF A MILL  
A method of controllably milling a window in at least a portion of a cased wellbore comprises: interconnecting a mill advancing device and a mill; applying a pressure differential between the mill...
US20110114316 Methods and Devices for One Trip Plugging and Perforating of Oil and Gas Wells  
A tubing conveyed tool for use in perforating a well bore utilizing abrasive perforating techniques. The perforating tool is particularly useful in non-vertical wells. The perforating tool is...
US20140034316 TORSIONAL SHEARING OF OILFIELD TUBULARS  
A shearing device that torsionally shears an oilfield tubular by gripping the tubular at vertically spaced apart locations and exerting a torsional force at the locations. Tong assemblies are...
US20130199784 EXTENDED WHIPSTOCK AND MILL ASSEMBLY  
A cutting apparatus and method to facilitate milling of a casing window by improving the interaction between the mill and the casing. The cutting apparatus comprises a whipstock having a plurality...
US20130299173 DOWNHOLE ASSEMBLY WITH DEBRIS RELIEF, AND METHOD FOR USING SAME  
A tool assembly and method for completing a well are provided. The tool includes debris relief features that enable use in solids-laden environments, for example in the presence of sand. Forward...
US20120312536 Multi-Stage Downhole Hydraulic Stimulation Assembly  
An assembly for performing multiple downhole hydraulic stimulation applications in a well. The different applications may be performed without removal of the assembly from the well between the...
US20110198082 DOWNHOLE TOOL ASSEMBLY WITH DEBRIS RELIEF, AND METHOD FOR USING SAME  
A tool assembly and method for completing a well are provided. The tool includes debris relief features that enable use in solids-laden environments, for example in the presence of sand. Forward...
US20110174487 OPTIMIZING WELLBORE PERFORATIONS USING UNDERBALANCE PULSATIONS  
A perforating system and method for use in a wellbore. In operation, the perforating system is disposed in the wellbore and used to form perforations in the wellbore. Thereafter, the perforating...
US20140326456 Systems and Methods for Managing Milling Debris  
Systems and methods of managing cuttings and debris resulting from milling a casing exit are disclosed. An exemplary milling system includes a mill arranged within a shroud and configured to...
US20140014343 Systems and Methods for Managing Milling Debris  
Systems and methods of managing cuttings and debris resulting from milling a casing exit are disclosed. An exemplary milling system includes a mill arranged within a shroud and configured to...
US20140238678 METHOD AND APPARATUS FOR BALLISTIC TAILORING OF PROPELLANT STRUCTURES AND OPERATION THEREOF FOR DOWNHOLE STIMULATION  
Propellant structures and stimulation tools incorporating propellant structures may comprise composite propellant structures including two or more regions of propellant having different...
US20120285684 Multi-position Mechanical Spear for Multiple Tension Cuts while Removing Cuttings  
A cut and pull spear is configured to obtain multiple grips in a tubular to be cut under tension. The slips are set mechanically with the aid of drag blocks to hold a portion of the assembly while...
US20130000907 Milling Assembly  
A milling assembly and methods for milling an opening for a lateral wellbore in a section of casing or in a cement liner.
US20120318509 MODULAR ANCHORING SUB FOR USE WITH A CUTTING TOOL  
A cutting tool that inserts into a tubular for cutting the tubular from within. The cutting tool includes a motor, a cutting head, permanent anchor between the motor and cutting head, an...
US20120298362 Window Joint for Lateral Wellbore Construction and Method for Opening Same  
A system for opening a window (320) in lateral wellbore construction. The system includes a window joint (300) that is operable to be interconnected within a casing string. The window joint (300)...
US20150013981 Creation of SWEGS Appendages and Heat Pipe Structures  
A process is shown to efficiently drill multiple, short-length, medium-radius lateral holes from a vertical well shaft. The disclosed process may be performed without the need to repeatedly pull...
US20110284224 CUTTING DART AND METHOD OF USING THE CUTTING DART  
The present disclosure is directed to a cutting dart. The cutting dart comprises a dart body including a first pathway. The first pathway is configured to redirect cutting fluid flowing through a...
US20150152703 Systems and Methods of Supporting a Multilateral Window  
Disclosed are systems and methods for providing torque support to a multilateral window milling system. One milling system includes an elongate body having a first end, a second end, and a mill...
US20080093075 Expandable watermelon mill  
A watermelon mill has a smaller dimension for run in and a larger one for reaming out the window made by a window mill and passes through a smaller drift and then gets larger for more effective...
US20090266544 SIGNAL OPERATED TOOLS FOR MILLING, DRILLING, AND/OR FISHING OPERATIONS  
Embodiments of the present invention generally relate to signal operated tools for milling, drilling, and/or fishing operations. In one embodiment, a mud motor for use in a wellbore includes: a...
US20100252265 Four mill bottom hole assembly  
Bottom hole assemblies for cutting windows in wellbore casing comprise a window mill, a first upper mill, a second upper mill, and a third upper mill. The first mill has an outer diameter that is...
US20150021029 Method and Apparatus for Casing Entry  
According to one aspect of the disclosure, an intercept well for penetrating an existing tubular is drilled. A casing entry tool is provided in the intercept well and operated to form at least one...
US20070251690 Well Completion System  
An assembly that is usable with a well includes a base pipe, a screen and at least one perforating charge. The base pipe includes at least one radial port to communicate well fluid, and the base...
US20130112412 Settable well tool and slips  
A settable down hole tool is of increased drillability and/or of increased expansibility. The improvement in drillability can be caused by fracturing cast iron slips into a large number of small...
US20140216747 METHOD OF USING A DOWNHOLE TOOL WITH EROSION RESISTANT LAYER  
This disclosure is related to downhole tool having an erosion resistant material metalurgically bonded to portions of the downhole tool. The downhole tool can have the erosion resistant material...
US20110209540 METHOD OF TESTING A PIPELINE CUT  
A method of testing the through cut of a pipeline comprising at least the steps of: (a) transmitting an electromagnetic signal through the pipeline; (b) monitoring any reflected signal(s); and (c)...
US20150114639 Re-Fracture Apparatus and Method for Wellbore  
Re-treatment of a formation having a wellbore, which can be an open hole or a cased hole lined with casing, involves deploying a tubing string in the casing having tools disposed at intervals...
US20150034312 Magnetic Latching Device For Downhole Wellbore Intercept Operations  
A downhole magnetic latching tool includes at least one permanent magnet deployed on a non-magnetic tool body. A magnetically permeable housing is deployed about the permanent magnet. The magnetic...
US20110067871 Methods For Regulating Flow In Multi-Zone Intervals  
Methods of regulating flow in a hydrocarbon well include identifying at least two dissimilar zones in an interval of a well, perforating a well completion in the interval according to a...
US20150027708 Apparatus and Methods for Performing Downhole Operations Using a Selectably Operable Motor  
In one aspect an apparatus for performing a downhole operation is disclosed that in one non-limiting embodiment may include a downhole tool that contains a hydraulically-operated motor and a flow...
US20060090897 High chrome/nickel milling with PDC cutters  
A method of downhole milling of an item having high chrome/high nickel content, using polycrystalline diamond cutting elements, exhibiting less wear, requiring less torque and weight, and...
US20140076564 Perforation Gun String Energy Propagation Management System and Methods  
A perforation tool assembly. The perforation tool assembly comprises a tool string connector, a perforation gun coupled to the tool string connector, and a structure configured to absorb...
US20140060838 Downhole Robotic Micro-Drilling System  
The invention relates to the completion and enhancement of oil and gas wells. The invention provides for a downhole tool which: enters vertical or horizontal wells located adjacent to the oil and...
US20100051278 PERFORATING GUN ASSEMBLY  
A perforating gun assembly including: an upper end; a perforating gun connected to the upper end; a hydraulically actuated tool connected to the perforating gun on an end opposite the upper end;...
US20130206412 Method and System for Fracture Stimulation by Cyclic Formation Settling and Displacement  
The present techniques provide methods and systems for fracturing reservoirs without directly treating them. For example, an embodiment provides a method for fracturing a subterranean formation....
US20080093076 Milling system and method of milling  
A mill assembly includes a shaft; a lead mill secured to a first end of the shaft, the lead mill including a first body having a plurality of first blades and a plurality of first cutters having...
US20110005755 Downhole Casing Cutting Tool  
An oilfield downhole cutting tool is provided. The cutting tool comprises a tool body that comprises a non-cutting stabilizing section. The cutting tool further comprises a plurality of cutters...
US20120279709 EXPANDABLE DOWNHOLE CASING COUPLING LOCATOR TOOL  
A downhole locator apparatus, including a tool body having a central axis defined therethrough, and at least one locator lug radially expandable from the tool body, in which the at least one...
US20090078421 SYSTEM AND METHOD FOR PERFORMING WELL TREATMENTS  
A technique is provided for performing a well treatment operation. A completion assembly is constructed with a tubular member designed to maintain pressure integrity above a given well treatment...
US20110067870 Complex fracturing using a straddle packer in a horizontal wellbore  
A method of inducing fracture complexity within a fracturing interval of a subterranean formation is provided. The method comprises defining a stress anisotropy-altering dimension, providing a...
US20070107899 Perforating Gun Fabricated from Composite Metallic Material  
A perforating gun and method of manufacture is provided for downhole perforation operations in a wellbore. The perforating gun includes tubular components fabricated from a multi-layer...
US20140352964 Systems and Methods for Removing a Section of Casing  
One disclosed method includes conveying a casing cutting tool into the wellbore lined with at least one casing string and cement, stroking the casing cutting tool over a predetermined axial length...
US20130020084 AFFIXATION AND RELEASE ASSEMBLY FOR A MILL AND METHOD  
A downhole affixation and release assembly including a first component; a second component, and an interconnection device for at least temporarily securing the first component to the second...
US20150047845 Method for Removal of Casings in an Underground Well  
A method is for removing casing from a well. The method includes setting a first sealing element into fluid-sealing engagement with the inside of the casing, lowering a flow-through string into...
US20090200030 SELF ADJUSTING DEBRIS EXCLUDER SUB  
A self adjusting excluder sub includes a first subassembly; a second subassembly with respect to which the first subassembly is axially movable; and a support disposed at the second subassembly...
US20120152543 One Trip Multiple String Section Milling of Subterranean Tubulars  
Multiple section mills are run in a single trip with an intervening mill preferably a watermelon mill to grind up any cuttings that get past the first mill in a direction toward the second mill...
US20150083424 APPARATUS AND METHOD FOR HIGH PRESSURE ABRASIVE FLUID INJECTION  
A system for injecting high pressure abrasive fluid into an abrasive jet tool in a wellbore comprises an abrasives hopper; a slurry tank connected to the abrasives hopper; a low pressure abrasive...
US20140000895 Devices and Methods for Severing a Tube-Wire  
A shear pig assembly and method of use for severing a linear conductor within a surrounding tubular. A shear pig assembly includes a main body and a nose that radially surround the linear...

Matches 1 - 50 out of 291 1 2 3 4 5 6 >