| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 81 | MULTILATERAL JUNCTION WITH WELLBORE ISOLATION | US15034493 | 2014-12-29 | US20160341011A1 | 2016-11-24 | David Joe Steele; Neil Hepburn; Stuart Alexander Telfer |
| A wellbore isolation system is disclosed. The wellbore isolation system includes a junction positioned at an intersection of a first wellbore and a second wellbore, and a deflector disposed in the junction such that a path into the first leg of the junction is obstructed and engaged with the first leg of the junction to form a fluid and pressure tight seal. The junction includes a first leg extending downhole into the first wellbore, and a second leg extending downhole into the second wellbore. | ||||||
| 82 | Three-Dimensional Interactive Wellbore Model Simulation System | US15134651 | 2016-04-21 | US20160319642A1 | 2016-11-03 | Imtiaz Ahmed |
| Provided in some embodiments are systems and methods for simulating a well. Embodiments include, for each lateral of a well, obtaining wellbore directional survey data identifying a path of the lateral, generating (using the wellbore directional survey data) a geographic information system (GIS) virtual wellbore path, obtaining wellbore tubing, perforation and casing data for the lateral. Generating (using the wellbore tubing and perforation data) a tubing extensible three dimensional (X3D) file including data corresponding to X3D virtual tubing path. Generating (using the wellbore casing data) a casing X3D file including data corresponding to an X3D virtual casing path for the lateral. Generating a well X3D file for the well (including links to the tubing and casing X3D files) that can be provided to an X3D application of a remote computing device for generating a 3D simulation of the well. | ||||||
| 83 | Multi-stage valve actuator | US13398117 | 2012-02-16 | US09482076B2 | 2016-11-01 | Dinesh R. Patel |
| An actuator assembly for effective interventionless activation of a valve in wells of multilateral architecture. The assembly may be pressure actuated from an oilfield surface even in certain circumstances where another valve in another leg of the well has been opened in a manner compromising pressure control of the well. Due to the multi-stage nature of the actuator, pressure based activation remains viable as a result of supplemental and/or fail-safe modes of actuation, for example, where such pressure control becomes compromised. | ||||||
| 84 | DEFLECTOR ASSEMBLY FOR A LATERAL WELLBORE | US14382280 | 2013-11-01 | US20160290079A1 | 2016-10-06 | Borisa Lajesic |
| A deflector assembly includes an upper deflector arranged within a main bore of a wellbore, the upper deflector having first and second plates spaced apart by a distance. At least one of the first and second plates includes a ramped surface. A lower deflector is arranged within the main bore, the lower deflector defining a first conduit and a second conduit. One of the first and second conduits is in communication with a lower portion of the main bore and another of the first and second conduits is in communication with a lateral bore. The upper and lower deflectors are configured to direct a bullnose assembly into either the lateral bore or the lower portion of the main bore based on a size of a bullnose tip of the bullnose assembly. | ||||||
| 85 | MULTILATERAL JUNCTION WITH MECHANICAL STIFFENERS | US14442474 | 2014-07-16 | US20160273312A1 | 2016-09-22 | David Joe Steele; Neil Hepburn |
| An example multi-bore junction assembly includes a connector body having an upper end and a lower end, the lower end providing a main bore leg receptacle and a lateral bore leg receptacle, a main bore leg coupled to the main bore leg receptacle and extending longitudinally therefrom, a lateral bore leg coupled to the lateral bore leg receptacle and extending longitudinally therefrom, wherein the main and lateral bore legs are round, tubular structures, and a first mechanical stiffener arranged on the main bore leg and a second mechanical stiffener arranged on the lateral bore leg, wherein the first and second mechanical stiffeners each exhibit a generally D-shaped cross-section. | ||||||
| 86 | Methods and Systems for Orienting in a Wellbore | US14900717 | 2013-08-26 | US20160265314A1 | 2016-09-15 | Dan P. Saurer |
| A method for orienting a tubing string in a wellbore comprises lowering a tubular string within a casing string in a wellbore, engaging the tubular aligning tool with a casing aligning tool while lowering the tubular string, rotating the tubular string in response to engaging the tubing aligning tool with the casing aligning tool, rotationally aligning the tubular string opening with a casing string opening disposed through the casing string based on the rotating, and retaining the tubular string opening in an axial aligning and a rotational aligning with the casing string opening. The tubular string comprises: a tubular string opening and a tubular string aligning tool. | ||||||
| 87 | VARIABLE DIAMETER BULLNOSE ASSEMBLY | US14386361 | 2013-12-09 | US20160245046A1 | 2016-08-25 | Benjamin Luke Butler; Cole Alexander Benson |
| Disclosed are expandable bullnose assemblies. One bullnose assembly includes a body and a bullnose tip arranged at a distal end of the body, a compression ring arranged about an exterior of the body and configured to axially translate with respect to the body upon being actuated, and a plurality of collet fingers coupled to and extending between the compression ring and the bullnose tip, each collet finger being pre-compressed such that each collet finger is predisposed to bow radially outwards, wherein, when the compression ring is actuated, the plurality of collet fingers move radially outward from a first diameter to a second diameter that is greater than the first diameter. | ||||||
| 88 | MULTILATERAL WELLBORE STIMULATION | US14915730 | 2013-12-20 | US20160194930A1 | 2016-07-07 | Douglas Glenn Durst |
| Systems and methods are provided for positioning an isolation device within a multilateral well to isolate a live wellbore from other wellbores in the well system. The isolation device can be changed from an open position to a closed position substantially contemporaneously to the wellbore becoming a live wellbore. Another procedure can be performed on the other wellbore of the multilateral well while the isolation device is in the closed position. A tubing string or a short or intermediate completion string can isolate a wellbore from pressure applied to another wellbore within the multilateral system. The tubing string or the short or intermediate completion string may also isolate a junction area of the multilateral well system. | ||||||
| 89 | Casing window assembly | US14615820 | 2015-02-06 | US09366116B2 | 2016-06-14 | David Joe Steele |
| A casing window assembly for completion of a lateral wellbore. The casing window assembly includes a tubular casing sleeve with a casing window and an inner sleeve releasably secured within the casing sleeve at a pre-released position adjacent the casing window. | ||||||
| 90 | Method for developing oil or natural gas shale or tight rock formations in two step process | US14560763 | 2014-12-04 | US20160160625A1 | 2016-06-09 | Tim Maloney |
| A method for developing oil or natural gas shale or tight rock formations by constructing wells in a two step process. The method includes an algorithm for determining under what conditions this two step process is the preferred option for developing a shale or tight rock resource. Step one is to drill a multilateral well with a profusion of unstimulated open-hole laterals from a main wellbore, after which the well is produced for a period of time. Step two is to re-enter the well and install a multistage hydraulic fracture completion. The method includes drilling the main bore and laterals in a specific sequence and geometry to facilitate running a frac liner in the future when the multistage fracturing step is carried out. | ||||||
| 91 | EXPANDABLE BULLNOSE ASSEMBLY FOR USE WITH A WELLBORE DEFLECTOR | US15016513 | 2016-02-05 | US20160153253A1 | 2016-06-02 | Matthew Bradley Stokes; Borisa Lajesic |
| A method includes introducing a bullnose assembly into a main bore of a wellbore, the bullnose assembly including a body and a bullnose tip actuatable between a default configuration, where a collet body forming part of the bullnose tip exhibits a first diameter, and an actuated configuration, where the collet body exhibits a second diameter different than the first diameter. The bullnose assembly is then advanced to a deflector arranged within the main bore 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. The bullnose assembly is then directed into either the lower portion of the main bore or the lateral bore based on a diameter of the collet body as compared to the predetermined diameter. | ||||||
| 92 | Deflector Assembly for a Lateral Wellbore | US14904666 | 2013-11-01 | US20160153252A1 | 2016-06-02 | Borisa Lajesic; David Joe Steele |
| A deflector assembly includes an upper deflector arranged within a main bore of a wellbore, the upper deflector having a guide spring. The guide spring includes a ramped surface. A lower deflector is arranged within the main bore, the lower deflector defining a first conduit and a second conduit. One of the first and second conduits is in communication with a lower portion of the main bore and another of the first and second conduits is in communication with a lateral bore. The upper and lower deflectors are configured to direct a bullnose assembly into either the lateral bore or the lower portion of the main bore based on a size of a bullnose tip of the bullnose assembly. | ||||||
| 93 | METHOD OF FORMING A BORE | US15019131 | 2016-02-09 | US20160153238A1 | 2016-06-02 | James A. Hewson; Philip M. Burge; Gregory G. Galloway; David J. Brunnert |
| A method of forming a supported subterranean well bore in which, in one disclosed embodiment, a first drill bit is mounted on a first string of casing tubulars via a steerable tool, and the drill bit is used to form a first bore. Upon reaching the required depth the casing string is cemented in place to support the formed bore and a second drill bit is mounted on a second casing string and is inserted into the first casing string. The second drill bit is used to drill through the wall of the first casing string and proceed to form a second, deeper bore. Once the second drill bit has reached the required depth, the second casing string is cemented in place to support the second bore. | ||||||
| 94 | WHIPSTOCK AND DEFLECTOR ASSEMBLY FOR MULTILATERAL WELLBORES | US14782880 | 2015-05-07 | US20160145956A1 | 2016-05-26 | Espen Dahl; Stuart Alexander Telfer; Peder Bru; Frode Lindland |
| A method includes conveying a whipstock and a latch anchor into a parent wellbore, the latch anchor being attached to the whipstock at a releasable connection and the parent wellbore being lined with casing that includes a latch coupling. The latch anchor is secured to the latch coupling and the whipstock is then separated from the latch anchor at the releasable connection and thereby exposing a portion of the releasable connection. The whipstock is then removed from the parent wellbore and a completion deflector is subsequently conveyed into the parent wellbore in combination with lateral tubing (with or without a multilateral junction positioned thereabove), and the completion deflector is attached to the latch coupling at the releasable connection. The lateral tubing (with or without multilateral junction positioned thereabove) is then installed to correct depth. | ||||||
| 95 | METHODS FOR PRE-SHARPENING IMPREGNATED CUTTING STRUCTURES FOR BITS, RESULTING CUTTING STRUCTURES AND DRILL BITS SO EQUIPPED | US14995975 | 2016-01-14 | US20160129555A1 | 2016-05-12 | J. Miguel Bilen; Victor L. Reddick, JR.; Wesley Dean Fuller |
| Processes for pre-sharpening cutting structures comprising particles of superabrasive material such as diamond grit, dispersed in a metal matrix material such as cemented tungsten carbide. Matrix material may be removed from a surface of a cutting structure to a desired depth to expose superabrasive particles within the matrix material adjacent the surface, and to increase exposure of partially exposed superabrasive particles at the surface. Electrodischarge machining (EDM), laser machining, electrolytic etching and chemical etching may also be employed. Pre-sharpened cutting structures are also disclosed. | ||||||
| 96 | Pulsating rotational flow for use in well operations | US14567411 | 2014-12-11 | US09328587B2 | 2016-05-03 | Jim B Surjaatmadja; Timothy H. Hunter; Robert L. Pipkin |
| A system for use with a subterranean well can include a fluid oscillator which discharges pulsating fluid from a tubular string in a direction at least partially toward an end of the tubular string proximate a surface of the earth. A method can include discharging a fluid from the tubular string, thereby applying a reaction force to the tubular string, which reaction force biases the tubular string at least partially into the well. Another method can include discharging a pulsating fluid from a fluid oscillator in a direction at least partially toward an end of the tubular string, and drilling into an earth formation with a drill bit connected at an opposite end of the tubular string in the well. | ||||||
| 97 | Casing Window Assembly | US14983287 | 2015-12-29 | US20160108682A1 | 2016-04-21 | David Joe Steele |
| A casing window assembly and methods for installing the casing window assembly. | ||||||
| 98 | Expandable and variable-length bullnose assembly for use with a wellbore deflector assembly | US14358805 | 2013-07-25 | US09260945B2 | 2016-02-16 | Borisa Lajesic; Matthew Bradley Stokes |
| A wellbore system includes an upper deflector arranged within a main bore of a wellbore and defines first and second channels. A lower deflector is arranged within the main bore and spaced from the upper deflector by a predetermined distance and defines a first conduit exhibiting a predetermined diameter and communicating with a lower portion of the main bore and a second conduit that communicates with a lateral bore. A bullnose assembly includes a body and a bullnose tip arranged at a distal end of the body, the bullnose assembly being actuatable between a default configuration and an actuated configuration. The upper and lower deflectors direct the bullnose assembly into one of the lateral bore and the lower portion of the main bore based on a length and a diameter of the bullnose tip as compared to the predetermined distance and the predetermined diameter, respectively. | ||||||
| 99 | Providing equipment in lateral branches of a well | US13356060 | 2012-01-23 | US09249559B2 | 2016-02-02 | Stephen Dyer; John Algeroy; Marian Faur; Omer Gurpinar |
| First equipment is provided in a first lateral branch of a well, and second equipment in a second lateral branch of the well. Cross-lateral logging is performed using the first and second equipment in the corresponding first and second lateral branches. | ||||||
| 100 | Methods for pre-sharpening impregnated cutting structures for bits, resulting cutting structures and drill bits so equipped | US13779307 | 2013-02-27 | US09243458B2 | 2016-01-26 | J. Miguel Bilen; Victor L. Reddick, Jr.; Wesley Dean Fuller |
| Processes for pre-sharpening cutting structures comprising particles of superabrasive material such as diamond grit, dispersed in a metal matrix material such as cemented tungsten carbide. Matrix material may be removed from a surface of a cutting structure to a desired depth to expose superabrasive particles within the matrix material adjacent the surface, and to increase exposure of partially exposed superabrasive particles at the surface. Electrodischarge machining (EDM), laser machining, electrolytic etching and chemical etching may also be employed. Pre-sharpened cutting structures are also disclosed. | ||||||
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