|
Match
|
Document |
Document Title |
|
|
7610971 |
One trip milling system and method
A sidetracking system has a pair of serially connected mills ( 8,9 ), each having a plurality of circumferentially arranged blades having a tapered cutting portion ( 82,93 ) thereon for cutting a...
|
|
|
7575049 |
Exit window milling assembly with improved restraining force
An assembly for milling a window in a tubular features a layout that keeps a restorative force normal to the whipstock slope acting on the window mill to help it track the whipstock ramp long...
|
|
|
7506700 |
Method for steering mud motors and retrieving measurement while drilling devices
A method for steering a steerable mud motor while attached to a retrievable replaceable measurement while drilling device comprising: securing a directional drilling tool to a retrievable...
|
|
|
7506699 |
Directional drilling tool
A directional drilling tool comprising an orientation spear point having a spear axis. The orientation spear point comprises an end shaft with a threadable extension disposed along the spear axis...
|
|
|
7487847 |
Lateral downhole drilling tool
A flexible lateral drilling shaft is disclosed, having a concentrically nested arrangement of two or more coil springs of which the winding direction of at least one of the springs is opposite to...
|
|
|
7451810 |
Kickover tool and selective mandrel system
A kickover tool is disclosed for installing and retrieving a well flow control device from a side pocket mandrel in a wellbore. The kickover tool includes a spring-loaded key which has an outer...
|
|
|
7422057 |
Whipstock with curved ramp
The whipstock face below the mounting lug is initially curved with a fairly long radius to protect the whipstock body initially. After moving down the minimally sloping curved face a transition to...
|
|
|
7373984 |
Lining well bore junctions
A well bore liner is carried on a working string into a main bore of a well. A well bore liner is directed from the main bore into an auxiliary bore of the well with a whipstock. The whipstock is...
|
|
|
7370702 |
Single mill casing window cutting tool and method
An apparatus for cutting a window in a casing pipe in a well, having only a single mill with full gage primary cutting inserts of a very hard, highly wear resistant, material. The primary inserts...
|
|
|
7353867 |
Whipstock assembly and method of manufacture
The present invention discloses a whipstock assembly ( 100 ) for use in forming a lateral borehole from a parent wellbore. The whipstock assembly comprises a body ( 122 ) and a deflection member ...
|
|
|
7320366 |
Assembly of downhole equipment in a wellbore
A system and method for assembly of downhole equipment in a subterranean well. In a described embodiment, a method of assembling an apparatus in a subterranean well includes the steps of:...
|
|
|
7284607 |
System and technique for orienting and positioning a lateral string in a multilateral system
A technique that is usable with a subterranean well that has a first string that lines a borehole includes running a second string into the well and engaging a deflecting face of a deflector to...
|
|
|
7284614 |
Wellbore system for simultaneous drilling and production
A wellbore system for simultaneously drilling a wellbore into an earth formation and producing hydrocarbon fluid from the wellbore, is provided. The system comprises a production tubing extending...
|
|
|
7261155 |
Cable side-entry sub with grease injection flow tubes
An integrated side-entry sub with grease injection flow tubes is adapted for making up in a drill string and includes a port to receive a cable, such as a wire line. A first pedestal, mounted...
|
|
|
7258165 |
Hole opener and drillable casing guide and methods of use
A down-hole tool guide is disclosed for deflecting various down-hole tools having a tendency to hang or bind in uncased bore holes. The down-hole tool guide or ball guide assembly, being adaptive...
|
|
|
7243738 |
Multi seam coal bed/methane dewatering and depressurizing production system
A process for underbalanced drilling into multiple coal and shale formations, and dewatering the drilled formations, which includes drilling a first borehole through several coal seams to a certain...
|
|
|
7240738 |
Self-orienting selectable locating collet and method for location within a wellbore
A self orienting selectable locating collet including a collet having at least one deflectable finger; an orientation key positioned at the deflectable finger and being deflectable with the finger;...
|
|
|
7231979 |
Short radius whipstock system
A short radius exit from a window milled in casing is possible using a whipstock with a sloping surface in excess of 3.5° and a window mill whose diameter is reduced to a percentage generally...
|
|
|
7228897 |
Cement through side pocket mandrel
Well completion cement may be pumped through a side pocket mandrel that includes parallel rows of filler sections to exclude cement from void space within the side pocket tube. The filler sections...
|
|
|
7228909 |
One-way valve for a side pocket mandrel of a gas lift system
Embodiments include providing a gas lift system comprising production tubing disposed within a wellbore, the production tubing capable of allowing fluid flow in a first direction from outside the...
|
|
|
7225887 |
Method of drilling an ultra-short radius borehole
A method of drilling a borehole into an earth formation using a drill string having an upper part and a lower part which is more flexible than the upper part, the method involving drilling a first...
|
|
|
7213607 |
Mandrel for a gas lift valve
The present invention relates to a mandrel for a gas lift valve which comprises an elongated body provided with means of connection at its ends. The body is provided with a side pocket ( 17 ) and a...
|
|
|
7213654 |
Apparatus and methods to complete wellbore junctions
A method and apparatus for completing a wellbore junction, wherein, in one embodiment, a first leg of a screen is fastened within a first tubular with a preformed window. The first tubular houses a...
|
|
|
RE39509 |
Top entry sub arrangement
A top entry sub (ES) includes a tubular member (TM) with a main body section ( 8 ) and an enlarged external diameter upper end portion ( 11 ). A single passage ( 15 ) extends through the main body...
|
|
|
7168498 |
Side entry apparatus and method
An apparatus and method for transferring torque on a rig. The apparatus comprises a central body having a central passage, and a first plurality of splines formed within the central passage and a...
|
|
|
7104332 |
Method and apparatus for creating a cemented lateral junction system
An apparatus for creating a cemented lateral junction including a sleeve with a premachined opening and a cover disposed at the sleeve. A release material is disposed at the cover. Further...
|
|
|
7104316 |
Tong positioning and alignment device
An improved tong positioning apparatus which includes a base positionable on the rig floor; a hydraulic cylinder positioned on the base, having a first end engageable to a rear support member and a...
|
|
|
7077204 |
Whip retrieval method and apparatus
The retrieval tool includes a cylindrical member having a body, an inner passage, a guide cylinder and an engaging member. The engaging member may slide within the cylindrical member in order to...
|
|
|
7066270 |
Multilateral reference point sleeve and method of orienting a tool
A multilateral reference point sleeve includes a tubular member configured to be received in a tubing string of a wellbore. The tubular member has an uphole end and a downhole end. The uphole end...
|
|
|
6968896 |
Orienting whipstock seat, and method for seating a whipstock
The present invention provides an apparatus and methods for seating a whipstock. The apparatus comprises an expandable seat, or nipple, configured to receive a whipstock. The seat is run into a...
|
|
|
6935431 |
Well reference apparatus and method
The well reference apparatus and method of the present invention includes a reference member preferably permanently installed within the borehole at a preferred depth and orientation in one trip...
|
|
|
6910538 |
Whipstock collet latch
A method of anchoring a whipstock on the mill or drill body using an anchor extendible to engage an eyelet formed or provided on the whipstock to run in a mill and whipstock in one trip. The anchor...
|
|
|
6899173 |
Small tubular window system
A through tubing retrievable whipstock and installation method is disclosed. In the preferred embodiment, a plurality of anchor links pivot at one end and have wickers on an opposed rounded end....
|
|
|
6868909 |
Drillable junction joint and method of use
A drillable junction joint in a wellbore comprises a wellbore casing in which a section of the casing is constructed of easily drillable material. A sleeve having a premachined window therein is...
|
|
|
6848504 |
Apparatus and method to complete a multilateral junction
An apparatus and method for connecting a lateral well bore to a vertical well bore using a tieback liner while providing full bore access in the vertical well bore casing. The tieback liner is...
|
|
|
6845817 |
Kick over tool for side pocket mandrel
An apparatus for use in manipulating an eccentrically located well bore device. One embodiment of the apparatus comprises: a main body attachable to a conveyance member; an arm hinged to the main...
|
|
|
6840320 |
Method and apparatus for forming an optimized window
Methods and apparatus are described for forming a window of optimum dimensions in casing wall. A window of maximum width is cut when the center line of the mill tool is located inside of the inner...
|
|
|
6830106 |
Multilateral well completion apparatus and methods of use
A multilateral well completion. In a described embodiment, a multilateral well completion system includes a completion apparatus installed in a cased parent wellbore. The completion apparatus has...
|
|
|
6786282 |
Milling apparatus and method for a well
A downhole system includes a deflector with a reaction surface that is engageable to a mill. The deflector is coupled to a motion mechanism that is activable to move the deflector generally along a...
|
|
|
6761217 |
Downhole latch assembly and method of using the same
Downhole apparatus for locating equipment in a required depth and orientation within a well bore, the apparatus comprising a body and a latching member mounted on said body so as to be movable...
|
|
|
6755248 |
One trip through tubing window milling apparatus and method
A one-trip through tubing window milling system is disclosed. The whipstock is delivered with the mill and downhole motor in a downhole assembly which further includes MWD equipment for proper...
|
|
|
6619402 |
System for enhancing fluid flow in a well
A system for enhancing fluid flow into and through a hydrocarbon fluid production well comprising a series of flow boosters, such as electrically or hydraulically driven moineau-type pumps or...
|
|
|
6568480 |
Orientation and locator system and method of use
An orientation and locator system including a receiver sub disposed in and installed with a casing string in the borehole. The receiver sub has azimuth and depth profiles for positively locating a...
|
|
|
6536531 |
Apparatus and methods for orientation of a tubular string in a non-vertical wellbore
An apparatus and method for orienting tubular strings in wellbores. In one aspect, the invention utilizes the inherent eccentricity of a non-vertical wellbore to provide a means of orienting a...
|
|
|
6513589 |
Hydraulic switch device
A switch device ( 1 ) which sequentially conducts one hydraulic fluid stream ( 2 ) to two or more independently operated hydraulic units, where the switch device ( 1 ) with one or more channel...
|
|
|
6510898 |
Positioning assembly
A system is disclosed for positioning downhole tools in a borehole such as a cased or lined oilwell, wherein the system is adapted to control the vertical and rotational position of the tool within...
|
|
|
6508311 |
Apparatus, system and method for installing and retrieving pipe in a well
A string of pipe formed by the connection together of multiple joints of shorter pipe segments is stored in the water space adjacent an offshore drilling rig. The pipe string bends from the...
|
|
|
6497288 |
Deviated borehole drilling assembly
A tool for running and retrieving a whipstock in a subterranean wellbore includes a tool body that has one end that is adapted to be connected to a pipe. The tool body includes a rail defined...
|
|
|
6488095 |
Method and apparatus for orienting a whipstock in an earth borehole
A reference sleeve is used to orient a whipstock assembly to direct a pipe string into a new borehole section. The whipstock assembly may be removed such that a pipe string may enter the original...
|
|
|
6474415 |
Method and apparatus for milling openings in downhole structures
A whipstock-less milling apparatus and method for use in a wellbore having a first structure (e.g., a tubular structure such as a casing, liner, or other tubular structure) includes a support...
|