EP3039240B1 - Ansatzstück für verdrahtete rohroberfläche - Google Patents
Ansatzstück für verdrahtete rohroberfläche Download PDFInfo
- Publication number
- EP3039240B1 EP3039240B1 EP14839167.5A EP14839167A EP3039240B1 EP 3039240 B1 EP3039240 B1 EP 3039240B1 EP 14839167 A EP14839167 A EP 14839167A EP 3039240 B1 EP3039240 B1 EP 3039240B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- communication
- transmission device
- collar
- surface sub
- sub
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 claims description 60
- 238000004891 communication Methods 0.000 claims description 53
- 238000005553 drilling Methods 0.000 claims description 18
- 239000012530 fluid Substances 0.000 claims description 6
- 230000008878 coupling Effects 0.000 description 11
- 238000010168 coupling process Methods 0.000 description 11
- 238000005859 coupling reaction Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000004020 conductor Substances 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 5
- 230000001939 inductive effect Effects 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/028—Electrical or electro-magnetic connections
Definitions
- a pipe or other conduit is lowered into a borehole in an earth formation during or after drilling operations.
- Such pipes are generally configured as multiple pipe segments to form a "string", such as a drill string or production string.
- string such as a drill string or production string.
- additional pipe segments are coupled to the string by various coupling mechanisms, such as threaded couplings.
- Various power and/or communication signals may be transmitted through the pipe segments via a "wired pipe” configuration.
- Such configurations include electrical, optical or other conductors extending along the length of selected pipe segments.
- the conductors are operably connected between pipe segments by a variety of coupling configurations.
- the pin box connection includes a male member, i.e., a "pin” that includes an exterior threaded portion, and a female member, i.e., a "box”, that includes an interior threaded portion and is configured to receive the pin in a threaded connection.
- a male member i.e., a "pin” that includes an exterior threaded portion
- a female member i.e., a "box”
- Some wired pipe configurations include a transmission device mounted on the tip of the pin as well as in the box end.
- the transmission device, or “coupler,” can transmit power, data or both to an adjacent coupler.
- the coupler in the pin end is typically connected via a coaxial cable to the coupler in the box end.
- a surface communication interface (referred to as surface communication sub herein) may be used to take a signal from or put a signal into the wired pipe.
- an inductive coupling system which comprises a mandrel and an inner sleeve and outer housing that surround and rotate relative to the mandrel.
- the system provides electrical communication between a mandrel electronic system located within the mandrel and a housing electronics system located in the outer housing.
- the mandrel electronic system is connected with a mandrel coil which is located in a communications port which extends in a bore within the mandrel.
- a probe coil which rotates with the mandrel, is rotatably mounted within the mandrel coil and is in electrical communication with a housing inner coil.
- the housing inner coil also rotates together with the mandrel and is located within a housing outer coil which is fixed to the outer housing and in electrical communication with the housing electronics system.
- EP 2 273 058 A2 describes a technique for coupling a communication sub to a wired drill pipe.
- the technique comprises a sub coupler head having a surface that is non-threaded and is configured to provide a retaining force against a threaded section of a wired drill pipe.
- the technique further comprises a communication element embedded within the sub coupler head, wherein the communication element is configured to communicatively couple with a pipe communication element within a receiving end of the wired drill pipe if the sub coupler head is positioned within the receiving end of the wired drill pipe.
- a surface sub for a wired pipe system that includes a body including an outer surface and a pin end, and a first transmission device located in or near the pin end and at an end of the body and outside of the inner bore such that the fluid passes through the first transmission device during drilling.
- the surface sub also includes a communication collar that at least partially surrounds the outer surface and that is rotatable relative to the body, a second transmission device in electrical communication with the first transmission device and a transmission line that electrically connects the first and second communication devices and that passes at least partially through the body.
- the surface sub further includes a third transmission device located in the communication collar in communication with the second transmission device.
- the first, second and third transmission devices are all of the same type.
- an exemplary embodiment of a portion of a well drilling, logging and/or production system 10 includes a conduit or string 12, such as a drillstring or production string, that is configured to be disposed in a borehole for performing operations such as drilling the borehole, making measurements of properties of the borehole and/or the surrounding formation downhole, or facilitating gas or liquid production.
- a conduit or string 12 such as a drillstring or production string
- drilling fluid or drilling "mud” is introduced into the string 12 from a source such as a mud tank or "pit” and is circulated under pressure through the string 12, for example via one or more mud pumps.
- the drilling fluid passes into the string 12 and is discharged at the bottom of the borehole through an opening in a drill bit located at the downhole end of the string 12.
- the drilling fluid circulates uphole between the string 12 and the borehole wall and is discharged into the mud tank or other location.
- the string 12 may include at least one wired pipe segment 14 having an uphole end 18 and a downhole end 16.
- uphole refers to a location near the point where the drilling started relative to a reference location when the segment 14 is disposed in a borehole
- downhole refers to a location away from the point where the drilling started along the borehole relative to the reference location. It shall be understood that the uphole end 18 could be below the downhole end 16 without departing from the scope of the disclosure herein.
- a transmission line 22 is located within the wired segment 14 to provide protection for electrical, optical or other conductors to be disposed along the wired segment 14.
- the transmission line 22 is a coaxial cable.
- the transmission line 22 is formed of any manner of carrying power or data, including, for example, a twisted pair.
- the transmission line 22 is a coaxial cable it may include an inner conductor surrounded by a dielectric material.
- the coaxial cable may also include a shield layer that surrounds the dielectric.
- the shield layer is electrically coupled to an outer conductor that may be formed, for example, by a rigid or semi-rigid tube of a conductive material.
- the segment 14 includes a downhole connection 24 and an uphole connection 26.
- the segment 14 is configured so that the uphole connection 26 is positioned at an uphole location relative to the downhole connection 24.
- the downhole connectoin 24 includes a male coupling portion 28 having an exterior threaded section, and is referred to herein as a "pin end" 24.
- the uphole connection 26 includes a female coupling portion 30 having an interior threaded section, and is referred to herein as a "box end" 26.
- the pin end 24 and the box end 26 are configured so that the pin end 24 of one wired pipe segment 14 can be disposed within the box end 26 of another wired pipe segment 14 to effect a fixed connection there between to connect the segment 14 with another adjacent segment 14 or other downhole component.
- the exterior of the male coupling portion 28 and the interior of the female coupling portion 30 are tapered.
- the pin end 24 and the box end 26 are described has having threaded portions, the pin end 24 and the box end 26 may be configured to be coupled using any suitable mechanism, such as bolts or screws or an interference fit.
- the system 10 is operably connected to a downhole or surface processing unit which may act to control various components of the system 10, such as drilling, logging and production components or subs. Other components include machinery to raise or lower segments 14 and operably couple segments 14, and transmission devices.
- the downhole or surface processing unit may also collect and process data generated by the system 10 during drilling, production or other operations.
- Embodiments disclosed herein include a surface sub that can be used to allow for communication between the surface unit and communication network comprised of one or more of the wire pipe segments 14.
- a string refers to any structure or carrier suitable for lowering a tool through a borehole or connecting a drill bit to the surface, and is not limited to the structure and configuration described herein.
- a string could be configured as a drillstring, hydrocarbon production string or formation evaluation string.
- carrier as used herein means any device, device component, combination of devices, media and/or member that may be used to convey, house, support or otherwise facilitate the use of another device, device component, combination of devices, media and/or member.
- Exemplary non-limiting carriers include drill strings of the coiled tube type, of the jointed pipe type and any combination or portion thereof.
- Other carrier examples include casing pipes, wirelines, wireline sondes, slickline sondes, drop shots, downhole subs, BHA's and drill strings.
- the segment 14 includes at least one transmission device 34 (also referred to as a "coupler” herein) disposed therein and located at the pin end 24 and/or the box end 26.
- the transmission device 34 is configured to provide communication of at least one of data and power between adjacent segments 14 when the pin end 24 and the box end 26 are engaged.
- the transmission device 34 may be of any suitable type, such as an inductive coil, direct electrical contacts and an optical connection ring.
- the transmission device 34 may be disposed at the inner or outer shoulder. Further, the transmission device 34 may be a resonant coupler. Each of these types of couplers shall be referred to as including a communication element that allows it to communicate a signal to another coupler.
- the transmission device 34 could also be included in a repeater element disposed between adjacent segments 14 (e.g, within the box end). In such a case, the data/power is transmitted from the transmission device 34 in one segment, into the repeater. The signal may then be passed "as is,” amplified, and/or modified in the repeater and provided to the adjacent segment 14. Regardless of the configuration, it shall be understood that each transmission device 34 can be connected to one or more transmission lines 22.
- FIG. 4 illustrates a surface sub 40 according to one embodiment that may allow a signal to be communicated from or to a wired pipe segment 14.
- the signal may be received from or provided to a surface unit such as computing device 44.
- the signal is carried from the surface unit to the surface sub 40 over communication line 46.
- the communication line 46 could connect to a wireless device that transmits the signal to another location.
- the communication line 46 could be omitted and communication from the surface sub 40 to the computing device 46 could be wireless.
- the illustrated surface sub 40 includes a main body 50 and a communication collar 52.
- the communication collar 52 and the main body 50 are configured such that they may rotate relative to one another.
- the main body 50 may be rotated during a drilling operation while the communication collar 52 remains relatively stationary.
- this may allow for communication between the computing device 44 (or other surface unit) and the wired pipe segment 14/main body 50 as they rotate without causing the communication line 46 to be wrapped around the main body 50 or communication collar 52.
- the main body 50 includes a box end 72 and a pin end 70 configured so that it can be disposed within the box end 26 of another wired pipe segment 14 to effect a fixed connection there between to connect main body 50 with segment 14.
- the exterior of the pin end 70 and the interior of the box end 26 of an adjacent pipe segment 14 are tapered and may include interlocking threads on the tapered surfaces.
- the pin end 70 and the box end 26 are described has having threaded portions, the pin end 70 and the box end 26 may be configured to be coupled using any suitable mechanism, such as bolts or screws or an interference fit.
- the main body 50 includes at least one transmission device 34 (also referred to as a "coupler” herein) disposed therein located at the pin end 70 and/or the box end 72 thereof.
- a transmission device 34 also referred to as a "coupler” herein
- the transmission device 34 is configured to provide communication of at least one of data and power between surface sub 40 and segments 14 when the pin end 70 and the box end 26 are engaged. It shall be understood that the transmission device 34 could also be included in a repeater element or any other device disposed between the surface sub 40 and adjacent segment 14 (e.g., within the box end thereof). Regardless of the configuration, it shall be understood that each transmission device 34 can be connected to one or more transmission lines 22.
- the transmission device 34 can be any type of device capable transmitting signals across a connection between components in a wired pipe system. Examples include, without limitation, resonant couplers, inductive couplers, galvanic couplers and capacitive couplers.
- the transmission lines 22 serve to electrically connect the transmission device 34 to an outer surface 73 of the main body 50.
- the transmission lines 22 disclosed herein can all be of the same type or can be selected from different types.
- the types include, for example, a coaxial cable, a twisted pair, and a wire.
- the main body 50 of the surface sub 40 includes an outer surface 73.
- a passage 140 connects the outer surface 73 to a coupler (not shown) located in either a pin 70 or box 72 end ( FIG. 4 ) of the surface sub 40.
- the passage 140 is sized and configured to allow for passage of a transmission line 22 from the box/pin end to the outer surface 73. In this manner, a signal may be communicated in either direction between the outer surface 73 and a coupler located in the pin or box end of the sub 40.
- an outer adapter 101 is fixedly coupled to the outer surface 73. It shall be understood that the outer adapter 101 could be omitted.
- the outer adapter 101 includes a transmission device 103 in electrical communication with the transmission device in the pin/box end of the main body 50.
- the transmission device 103 may be electrically connected to the transmission device in the pin/box end of the main body 50 by transmission line 22.
- the transmission line 22 illustrated in FIG. 5 passes at least partially through the main body 50.
- the main body 50 and the outer adapter 101 are fixedly attached to one and do not rotate relative to one another. As illustrated, a screw 105 is used to form such connection.
- the outer adapter 101 could be omitted.
- the transmission device 103 could be located at or near the outer surface 73.
- the transmission device 103 could be located in a groove formed in main body 50.
- the communication collar 52 at least partially surrounds the outer surface 73 and that is rotatable relative to the main body 50.
- the communication collar 52 includes a transmission device 131 that can communicate with the transmission device 103 as the two are rotated relative to one another (or when they are not rotating).
- the communication may be made via electric, resonant, inductive or galvanic coupling.
- all of the transmission devices 34, 103 and 131 are of the same type. That is, if one of the devices is a resonant coupler, all of the transmission devices 34, 103 and 131 are resonant couplers.
- a communication line 133 may carry signals to and from transmission device 131 though a collar body 107 to an output terminal 109.
- the output terminal 109 can either allow the communication line 133 to exit the communication collar 52 or may contain a wireless transmitter.
- the outer adapter 101 is fixed to the outer surface 73 of the main body 50.
- the outer adapter 101 is fixed by screw 105 in the illustrated embodiment but alternative methods of securing the outer adapter 101 to the outer surface 73 may be employed.
- a first bearing 111 is disposed about the outer surface 73 and held in place by, for example, a retaining ring 115. As illustrated, the first bearing 111 abuts the outer adapter 101 but this is not required.
- the collar body 107 is then fitted about the main body 50.
- the collar body 107 in one embodiment, carries coupler 131.
- the couplers 131 and 103 are brought into communication with each other.
- a second bearing 113 held in place by retaining mechanism 137 that may include thread that mate with threads on the outer surface of the main body 50.
- the first 111 and second 113 bearings allow for relative rotation of the assembly that includes the main body 50 and the outer adapter 101 and the communication collar 52.
- the communication collar 52 includes additional optional housing element 135 that protects and is fixedly coupled to the collar body 107.
- various analyses and/or analytical components may be used, including digital and/or analog systems.
- the system may have components such as a processor, storage media, memory, input, output, communications link (wired, wireless, pulsed mud, optical or other), user interfaces, software programs, signal processors (digital or analog) and other such components (such as resistors, capacitors, inductors and others) to provide for operation and analyses of the apparatus and methods disclosed herein in any of several manners well-appreciated in the art.
- teachings may be, but need not be, implemented in conjunction with a set of computer executable instructions stored on a computer readable medium, including memory (ROMs, RAMs), optical (CD-ROMs), or magnetic (disks, hard drives), or any other type that when executed causes a computer to implement the method of the present invention.
- ROMs, RAMs random access memory
- CD-ROMs compact disc-read only memory
- magnetic (disks, hard drives) any other type that when executed causes a computer to implement the method of the present invention.
- These instructions may provide for equipment operation, control, data collection and analysis and other functions deemed relevant by a system designer, owner, user or other such personnel, in addition to the functions described in this disclosure.
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- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Earth Drilling (AREA)
- Remote Sensing (AREA)
- Geophysics (AREA)
Claims (11)
- Oberflächenansatzstück (40) für ein verdrahtetes Rohrsystem, wobei das Oberflächenansatzstück (40) Folgendes umfasst:einen Körper (50) der eine äußere Oberfläche (73) und ein Stiftende (70) umfasst;eine erste Übertragungsvorrichtung (34), die in dem Stiftende (70) oder in dessen Nähe und an einem Ende des Körpers (50) und außerhalb der Innenbohrung positioniert ist, sodass das Fluid die erste Übertragungsvorrichtung (34) während des Bohrens durchquert;einen Kommunikationskragen (52), der die äußere Oberfläche (73) mindestens teilweise umgibt und relativ zu dem Körper (50) drehbar ist;eine zweite Übertragungsvorrichtung (103), die in elektrischer Kommunikation mit der ersten Übertragungsvorrichtung (34) steht, und auf der äußeren Oberfläche (73) des Körpers (50) positioniert ist;eine Übertragungsleitung (22), die die erste und die zweite Übertragungsvorrichtung (34, 103) elektrisch verbindet und die den Körper (50) mindestens teilweise durchquert; undeine dritte Übertragungsvorrichtung (131), die in dem Kommunikationskragen (52) in Kommunikation mit der zweiten Übertragungsvorrichtung (103) positioniert ist;wobei die erste, die zweite und die dritte Übertragungsvorrichtung (34, 103, 131) alle von derselben Art sind.
- Oberflächenansatzstück (40) nach Anspruch 1, wobei die erste (34), die zweite (103) und die dritte (131) Übertragungsvorrichtung alle ausgewählt sind aus einem von: einem kapazitiven Koppler und einem Resonanzkoppler.
- Oberflächenansatzstück (40) nach Anspruch 1, ferner umfassend:
einen drahtlosen Sender, der in elektrischer Kommunikation mit der dritten Übertragungsvorrichtung (131) steht. - Oberflächenansatzstück (40) nach Anspruch 1, ferner umfassend:
einen Außenadapter (101), der an die äußere Oberfläche (73) gekoppelt ist und die zweite Übertragungsvorrichtung (103) enthält. - Oberflächenansatzstück (40) nach Anspruch 4, wobei der Außenadapter (101) sich relativ zu dem Kommunikationskragen (52) dreht.
- Oberflächenansatzstück (40) nach Anspruch 1, wobei der Kommunikationskragen (52) einen Kragenkörper (107) und einen Ausgangsanschluss (109) einschließt.
- Oberflächenansatzstück (40) nach Anspruch 6, wobei der Kragenkörper (107) eine Kommunikationsleitung (133) einschließt, die Signale zwischen der dritten Übertragungsvorrichtung (131) und dem Ausgangsanschluss (109) befördert.
- Oberflächenansatzstück (40) nach Anspruch 7, wobei der Ausgangsanschluss (109) einen drahtlosen Sender einschließt.
- Oberflächenansatzstück (40) nach Anspruch 8, wobei der Kommunikationskragen (52) Folgendes einschließt:einen Rückhaltering (115), der die äußere Oberfläche (73) umgibt; undein erstes Lager (111), das um die äußere Oberfläche (73) angeordnet ist und mindestens teilweise durch den Rückhaltering (115) in Position gehalten wird.
- Oberflächenansatzstück (40) nach Anspruch 9, wobei der Kommunikationskragen (52) ferner ein zweites Lager (113) einschließt;
wobei der Kragenkörper (107) mindestens teilweise zwischen dem ersten (111) und dem zweiten (113) Lager angeordnet ist. - Oberflächenansatzstück (40) nach Anspruch 10, ferner umfassend: einen Außenadapter (101), der mindestens teilweise zwischen dem ersten (111) und dem zweiten (113) Lager angeordnet ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/012,459 US20150061885A1 (en) | 2013-08-28 | 2013-08-28 | Wired pipe surface sub |
PCT/US2014/053045 WO2015031554A1 (en) | 2013-08-28 | 2014-08-28 | Wired pipe surface sub |
Publications (3)
Publication Number | Publication Date |
---|---|
EP3039240A1 EP3039240A1 (de) | 2016-07-06 |
EP3039240A4 EP3039240A4 (de) | 2017-05-24 |
EP3039240B1 true EP3039240B1 (de) | 2019-03-27 |
Family
ID=52582421
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14839167.5A Active EP3039240B1 (de) | 2013-08-28 | 2014-08-28 | Ansatzstück für verdrahtete rohroberfläche |
Country Status (4)
Country | Link |
---|---|
US (2) | US20150061885A1 (de) |
EP (1) | EP3039240B1 (de) |
BR (1) | BR112016003306B1 (de) |
WO (1) | WO2015031554A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9768546B2 (en) * | 2015-06-11 | 2017-09-19 | Baker Hughes Incorporated | Wired pipe coupler connector |
US10385682B2 (en) | 2016-08-15 | 2019-08-20 | Baker Hughes, A Ge Company, Llc | Pipe conveyed logging and drill pipe communication integration system and method |
US11236606B2 (en) | 2017-03-06 | 2022-02-01 | Baker Hughes, A Ge Company, Llc | Wireless communication between downhole components and surface systems |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2407334A (en) * | 2003-10-22 | 2005-04-27 | Schlumberger Holdings | Redundant telemetry system |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4788544A (en) * | 1987-01-08 | 1988-11-29 | Hughes Tool Company - Usa | Well bore data transmission system |
US5196845A (en) * | 1988-10-24 | 1993-03-23 | Compagnie Generale Des Etablissements Michelin | Antenna for tire monitoring device |
FR2640415B1 (fr) * | 1988-12-13 | 1994-02-25 | Schlumberger Prospection Electr | Connecteur a accouplement inductif destine a equiper les installations de surface d'un puits |
US6641434B2 (en) * | 2001-06-14 | 2003-11-04 | Schlumberger Technology Corporation | Wired pipe joint with current-loop inductive couplers |
US20070030167A1 (en) * | 2005-08-04 | 2007-02-08 | Qiming Li | Surface communication apparatus and method for use with drill string telemetry |
US7336199B2 (en) * | 2006-04-28 | 2008-02-26 | Halliburton Energy Services, Inc | Inductive coupling system |
US20090038849A1 (en) * | 2007-08-07 | 2009-02-12 | Schlumberger Technology Corporation | Communication Connections for Wired Drill Pipe Joints |
US8462013B2 (en) * | 2009-06-30 | 2013-06-11 | Schlumberger Technology Corporation | Apparatus, system, and method for communicating while logging with wired drill pipe |
US9234974B2 (en) * | 2011-09-26 | 2016-01-12 | Saudi Arabian Oil Company | Apparatus for evaluating rock properties while drilling using drilling rig-mounted acoustic sensors |
-
2013
- 2013-08-28 US US14/012,459 patent/US20150061885A1/en not_active Abandoned
-
2014
- 2014-08-28 BR BR112016003306-0A patent/BR112016003306B1/pt active IP Right Grant
- 2014-08-28 WO PCT/US2014/053045 patent/WO2015031554A1/en active Application Filing
- 2014-08-28 EP EP14839167.5A patent/EP3039240B1/de active Active
-
2019
- 2019-03-22 US US16/361,784 patent/US20190218864A1/en not_active Abandoned
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2407334A (en) * | 2003-10-22 | 2005-04-27 | Schlumberger Holdings | Redundant telemetry system |
Also Published As
Publication number | Publication date |
---|---|
EP3039240A1 (de) | 2016-07-06 |
US20190218864A1 (en) | 2019-07-18 |
BR112016003306A2 (de) | 2017-08-01 |
WO2015031554A1 (en) | 2015-03-05 |
EP3039240A4 (de) | 2017-05-24 |
BR112016003306B1 (pt) | 2022-02-08 |
US20150061885A1 (en) | 2015-03-05 |
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