Class / Patent application number | Description | Number of patent applications / Date published |
166117500 | MEANS FOR GUIDING INSERTABLE ELEMENT LATERALLY OF WELL AXIS (E.G., WHIPSTOCK) | 21 |
20090145596 | GUIDE TOOL FOR GUIDING DOWNHOLE TOOLS THROUGH WELLBORE RESTRICTIONS - A guide tool for mounting onto a downhole tool for use in a wellbore penetrating subsurface formations is provided. The guide tool has a bull nose. The bull nose has a first section with an end for sealing against and engaging a lower end of the downhole tool and a second section axially deflectably coupled to the first section. | 06-11-2009 |
20100116487 | 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 tubular at one end thereof and receptive to the male connector at the other end thereof. The system further includes, a sleeve disposed radially inwardly of the female connector, and a collet having at least one deflectable collet finger disposed radially inwardly of the sleeve. The collet is biased to a position within the female connector whereat the at least one collet finger is supported against radially outward deflection. The collet is further movable by the push-in connector against the bias to a position where the at least one collet finger is radially outwardly unsupported such that the profiled end of the male connector is movable into engagement with the at least one collet finger. | 05-13-2010 |
20100155052 | Downhole Tool and Running Tool System for Retrievably Setting a Downhole Tool at Locations Within a Well Bore - A running tool for landing and setting a retrievable downhole tool at any location in a well bore includes an inner rod, a running tool anchoring device mounted on the inner rod and controllably reconfigurable between a retracted configuration to permit movement of the tool through the well bore and a radially extended configuration for locking engagement of the running tool with the bore wall, a running tool actuating assembly for effecting reciprocal movement of the reconfiguring the running tool anchoring device to and from the retracted and expanded configurations without interacting with any restrictions or recesses within the well bore, and a resistance device for frictionally engaging the bore wall with sufficient gripping force so as to hold the position of the running tool relative to the well bore during movement of the running tool actuating assembly to and from the first and second configuration upon application of the axial force. | 06-24-2010 |
20100307736 | Permanent Bypass Whipstock Assembly For Drilling and Completing a Sidetrack Well and Preserving Access to the Original Wellbore - The present invention relates to drilling lateral wells or sidetrack wells from a primary wellbore to enhance the efficiency and productivity of oil and gas wells. | 12-09-2010 |
20110174480 | Pressure Relieving Transition Joint - A method of completing a wellbore having a branch wellbore extending outwardly from a window in a parent wellbore is provided. The method comprises positioning a tubular string in the window, wherein the positioning comprises deflecting the tubular string from the parent wellbore into the branch wellbore. The method also comprises providing a particulate barrier outside and against the tubular string proximate the window, the particulate barrier substantially excluding transport of particulate matter from the branch wellbore into the parent wellbore outside of the tubular string through the window. The method also comprises the tubular string passing fluid into the tubular string proximate the window from a formation proximate to the window while substantially excluding transport of particulate matter from the formation proximate to the window into the tubular string. | 07-21-2011 |
20110232897 | DIVERTING TOOL - A diverting tool includes a ramp repositionable from a first position to a second position, a biasing member in operable communication with the ramp biasing the ramp toward the second position, and a tubular in operable communication with the ramp and the biasing member. The tubular prevents repositioning of the ramp when longitudinally overlapping with the ramp and allows repositioning of the ramp when not longitudinally overlapping with the ramp. | 09-29-2011 |
20110240282 | WELL ASSEMBLY WITH RECESSES FACILITATING BRANCH WELLBORE CREATION - Assemblies that can be disposed in a subterranean bore are described. An assembly can include a recessed portion in an inner wall and another recessed portion in an outer wall. The recessed portions can each be configured to have a cross-sectional thickness that is less than at least another part of the assembly. The assembly can provide a seal between an inner region defined by the assembly and an environment exterior to the assembly prior to a window being created in the recessed portion in the outer wall through which a branch wellbore can be formed. The recessed portion in the inner wall can guide a cutting tool toward the recessed portion in the outer wall. | 10-06-2011 |
20110308785 | WHIPSTOCK ASSEMBLY - A whipstock assembly for milling an aperture in a casing of an oil, gas or water well, the whipstock assembly having a whipstock with a deflection face ( | 12-22-2011 |
20120241144 | Whipstock Assembly - In some embodiments, a whipstock includes a deflector movable from a retracted to a deployed position and at least one biasing member engageable with the deflector and configured to prevent it from moving back in the direction of the whipstock body while in the deployed position. In the deployed position, the deflector is capable of guiding a tubular member away from the whipstock. | 09-27-2012 |
20130140019 | RELEASABLY LOCKABLE, RETRIEVABLE, MULE SHOE ASSEMBLY - A mule shoe assembly for use in directional drilling which advantageously has releasable locking means to free the directional orienting tool from engagement with the outer mule shoe in situations where the drill bit may become stuck. The releasable locking means comprises a moveable pin which engages an aperture. A first configuration utilizes detent means and spring biasing of the pin. In a second configuration, the pin is adapted for locking engagement by pressurized downhole drilling mud, and may be disengaged from the aperture when pressure from drilling mud ceases. In a preferred embodiment the pin both has detent means and is spring biased, and also relies on drilling mud pressure to remain in locking engagement. The pin may be disengaged upon removal of drilling mud pressure and application of a positive separation force between the directional measurement tool and associated inner tool member, and outer mule shoe member. | 06-06-2013 |
20140144617 | System for Circumferentially Aligning a Downhole Latch Subsystem - A system for circumferentially aligning a downhole latch subsystem in a wellbore. The system includes an outer tool assembly including a latch coupling having a latch profile and a slot subassembly having an axially extending slot profile. An inner tool assembly is positionable within the outer tool assembly. The inner tool assembly includes a latch assembly having a plurality of latch keys and an orienting subassembly having a plurality orienting keys. In operation, after axial alignment of the orienting subassembly with the slot subassembly, rotation of the orienting subassembly causes operable engagement of at least one orienting key with the slot profile and, thereafter, axial alignment of the latch assembly with the latch coupling causes operable engagement of the latch keys with the latch profile. | 05-29-2014 |
20140216721 | ROTATING FLOW HEAD APPARATUS - An apparatus comprises a mandrel having a longitudinal axis and further comprises a plurality of pivoting elements spaced apart along a circumference of a cross-section of the mandrel. Each of the pivoting elements is pivotable around a transversal axis that is perpendicular to the longitudinal axis. | 08-07-2014 |
20150027689 | EXPANDABLE BULLNOSE ASSEMBLY FOR USE WITH A WELLBORE DEFLECTOR - Disclosed are embodiments of expandable bullnose assemblies for use in a well system. One well system includes a deflector arranged within a main bore of a wellbore and defining a first channel that exhibits a predetermined diameter and communicates with a lower portion of the main bore, and a second channel that communicates with a lateral bore, and a bullnose assembly including a body and a bullnose tip arranged at a distal end of the body, the bullnose tip being actuatable between a default configuration, where the bullnose tip exhibits a first diameter, and an actuated configuration, where the bullnose tip exhibits a second diameter different than the first diameter, wherein the deflector is configured to direct the bullnose assembly into one of the lateral bore and the lower portion of the main bore based on a diameter of the bullnose tip as compared to the predetermined diameter. | 01-29-2015 |
20160090793 | RELEASABLY LOCKABLE, RETRIEVABLE, MULE SHOE ASSEMBLY - A mule shoe assembly for use in directional drilling which advantageously has releasable locking means to free the directional orienting tool from engagement with the outer mule shoe in situations where the drill bit may become stuck. The releasable locking means comprises a moveable pin which engages an aperture. A first configuration utilizes detent means and spring biasing of the pin. In a second configuration, the pin is adapted for locking engagement by pressurized downhole drilling mud, and may be disengaged from the aperture when pressure from drilling mud ceases. In a preferred embodiment the pin both has detent means and is spring biased, and also relies on drilling mud pressure to remain in locking engagement. The pin may be disengaged upon removal of drilling mud pressure and application of a positive separation force between the directional measurement tool and associated inner tool member, and outer mule shoe member. | 03-31-2016 |
166117600 | Secured in operative position by movable means engaging well conduit (e.g., anchor) | 7 |
20090255664 | COMBINATION WHIPSTOCK AND SEAL BORE DIVERTER SYSTEM - A combination whipstock and seal bore diverter system includes a whipstock; and a diverter configured to receive and support the whipstock in a selected orientation, the system being installable in a single run in a borehole. | 10-15-2009 |
20090301706 | Non-Metallic Whipstock - A whipstock that is totally to substantially non-metallic is made preferably from a composite material. The body can include one or more stiffeners that are also preferably non-metallic. The mounting lug for the window mill can also be non-metallic. A metallic base can be used to connect to an anchor. Optionally the ramp can include a plate that is optionally internally supported. Alternatively the ramp can include hardened inserts or other wear resistant material. Composite materials that can be molded are preferred. | 12-10-2009 |
20110315371 | OPEN-HOLE ANCHOR WHIPSTOCK SYSTEM - The various embodiments of the present invention provide an open-hole anchor whip stock system. The open-hole anchor whip stock system includes an anchor, a whip face attached to the anchor, a drilling assembly attached to the whip face. The anchor is set at an optimal depth in a formation drilled by exerting a force which in turn activates a mechanism causing an expansion and fixation of the anchor on the formation of a surface and the drilling assembly slides over the surface at an angle defined by the whip stock so as to cut through the formation thereby forming a directional path hole. The whip face is a solid shaft provided with a 3° ramp along the longitudinal axis of rotation the shaft which induces a deflection on the drilling assembly thereby reducing bending stress on the drilling assembly. | 12-29-2011 |
20120234532 | INSTALLATION OF TUBULAR STRINGS WITH LINES SECURED THERETO IN SUBTERRANEAN WELLS - A system which attaches at least one line to a tubular string can include at least one clip pivotably secured on one side of a recess. At least one structure is positioned on an opposite side of the recess. Rotation of the clip into engagement with the structure secures the line in the recess. A method of attaching at least one line to a tubular string can include securing the line to a support on the tubular string as the tubular string is being conveyed into a wellbore. The securing step further includes rotating at least one clip into engagement with at least one structure, thereby preventing removal of the line from a recess formed in the support. | 09-20-2012 |
20130112397 | Spiral Whipstock for Low-Side Casing Exits - A whipstock features a spiral ramp so that, in a horizontal run, access to a milled window with other tools is not impeded because such tools can traverse onto the ramp and still be directed to the window. Angular rotation of the ramp can be at 180° or more and the pitch is selected to avoid getting the equipment being advanced into a bind. Optionally, a guide track can be configured into the whipstock ramp to help the mill follow the spiral path until the proper orientation is obtained and the track ends to allow separation of the mill from the track. A slot can be provided near the ramp upper end to aid in retrieval operations. | 05-09-2013 |
20130319653 | WEDGE DEFLECTING DEVICE FOR SIDETRACKING - A wedge deflecting device useful in drilling and workover operations on oil and gas wells. The device includes a cutting tool connected to the upper portion of the wedge by means of the shear element provided with an external circular groove, located below the wedge deflecting surface, and with a transverse slot in its upper part, the cutting tool having a longitudinal cylinder and a downwards spring-biased piston, inserted into the cylinder; above lower seal elements and below the spring the piston has a wedge nose which corresponds to a transverse slot of the shear element. Below the piston, the cylinder communicates with the drill string and the supply tube, and above-the-piston space communicates with the borehole interior. The cutting tool is provided with a radial inward spring-biased locking element, arranged to be able to fix the piston in its top position, where the piston is located above the shear element. | 12-05-2013 |
20150047827 | Pump down tool - A pump down tool includes a resilient cup on the tool exterior to minimize leakage of pumped fluid around the outside of the tool when the tool is pumped into a well. The resilient cup is concave toward an upper end of the tool so it expands upon application of pressure to pump the tool into the well. The resilient cup is capable of expanding to a diameter sealing against the inside of the casing string. A fluid bypass around the resilient cup allows a fraction of the pumped fluid to stir up any proppant lying in the path of the tool thereby allowing the tool to move through a horizontal well without having to plow through the proppant. | 02-19-2015 |