EP3194721A1 - Rig telemetry system - Google Patents
Rig telemetry systemInfo
- Publication number
- EP3194721A1 EP3194721A1 EP15827066.0A EP15827066A EP3194721A1 EP 3194721 A1 EP3194721 A1 EP 3194721A1 EP 15827066 A EP15827066 A EP 15827066A EP 3194721 A1 EP3194721 A1 EP 3194721A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- antenna
- leaky feeder
- communication
- signal
- drilling
- 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.)
- Withdrawn
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
- E21B47/13—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling by electromagnetic energy, e.g. radio frequency
Definitions
- Drilling operations require many resources such as a drilling rig, a drilling crew, and support services. These resources can be very expensive. In addition, the expense can be even much higher if the drilling operations are conducted offshore. Thus, there is an incentive to contain expenses by drilling the borehole efficiently.
- Efficiency can be measured in different ways. In one way, efficiency is measured by how fast the borehole can be drilled. Drilling the borehole too fast, though, can lead to problems. If drilling the borehole at a high rate-of-penetration results in a high probability of damaging equipment, then resources may be wasted in downtime and repairs. In addition, attempts at drilling the borehole too fast can lead to abnormal drilling events that can slow the drilling process.
- Stick-slip relates to the binding and release of the drill string while drilling and results in torsional oscillation of the drill string. Stick-slip can lead to damage to the drill bit and, in some cases, to failure of the drill string.
- Mud-pulse telemetry is a common method of data transmission used by measurement while drilling tools. Such tools typically include a valve operated to restrict the flow of the drilling mud (slurry) according to the digital information to be transmitted. This creates pressure fluctuations representing the information. The pressure fluctuations propagate within the drilling fluid towards the surface where they are received by pressure sensors.
- Another way to transfer information may be to utilize an electromagnetic (EM) telemetry system.
- EM electromagnetic
- the bandwidth of EM and mudpulse telemetry systems may not be sufficient to provide all of the data required by the models in a timely manner.
- a wired pipe is utilized instead as a telemetry system.
- a drillstring communications system that includes one or more pipe segments, a communication sub coupled to the pipe segment that includes a communication sub antenna, and a leaky feeder antenna in communication with the communication sub antenna is disclosed.
- a method of communicating information between a downhole location and a surface computing device that includes: transmitting a signal from the downhole location through telemetry system to a surface sub; transmitting the signal or a signal formed from the signal wirelessly from the surface sub; and receiving the signal or a signal formed from the signal with a leaky feeder antenna is disclosed.
- a drill string communications system that includes one or more drill pipe segments; a communication sub coupled to the drill pipe segment that includes a communication sub antenna; and a plurality of leaky feeder antennas in communication with the communication sub antenna is disclosed.
- FIG. 1 is a schematic diagram showing a drilling rig engaged in drilling operations
- FIG. 2 is a simplified version of rig showing a system according to one embodiment
- FIG. 3 shows a cut-away perspective view of a leaky feed antenna.
- a wireless communication systems are desired, such as a wide area local area network (WLAN) is provided that allows for communication while drill pipes are being added.
- WLAN wide area local area network
- the WLAN sender and receiver may be arranged such that a good transmission of data is possible at each position of the rig. This is challenging, as the rig tower is typically build of steel. It shall be understood, that other wireless standards and frequencies as e.g. blue tooth could also be used.
- connection issues could be solved by installing a leaky feeder vertical along at least part of the rig tower at or near the derrick.
- vertical means more than 45° from horizontal.
- the opposite sender/receiver could be rotated or non-rotated with the drill string. It is also possible to route a leaky feeder around the surface sub to get sender and receiver adverse in each rotational position of the surface sub.
- One possible advantage of using a leaky feeder is that reliable communication to the downhole equipment is possible at the surface, but no wires have to be moved up and down the rig while drilling or tripping.
- FIG. 1 is a schematic diagram showing a drilling rig 1 engaged in drilling operations.
- Drilling fluid 31 also called drilling mud
- the BHA 10 may comprise any of a number of sensor modules 17, 20, 22 which may include formation evaluation sensors and directional sensors.
- the sensor modules 17, 20, 22 and can measure information about any of, for example, the tension or stain experienced by the drill string, temperature, pressure, and the like.
- the drilling rig 1 can include a drill string motivator coupled to the drill string 9 that causes the drill string 9 to bore in into the earth.
- the term “drill string motivator” relates to an apparatus or system that is used to operate the drill string 9.
- Non-limiting examples of a drill string motivator include a "lift system” for supporting the drill string 9, a “rotary device” for rotating the drill string 9, a “mud pump” for pumping drilling mud through the drill string 9, an “active vibration control device” for limiting vibration of the drill string 9, and a “flow diverter device” for diverting a flow of mud internal to the drill string 9.
- the term “weight on bit” relates to the force imposed on the BHA 10. Weight on bit includes a weight of the drill string and an amount of force caused by the flow of mud impacting the BHA 10.
- the BHA 10 also contains a communication device 19 that, in one
- the sensor 18 is connected to the flow line 13 and may be a pressure transducer, or alternatively, may be a flow transducer.
- the communication device 19 may provide electrical signals that are carried by a wired pipe telemetry system to the surface.
- control unit 24 may include programming or other means of storing models of physical characteristics of the drill string 9.
- control unit 24 includes one or more models that model torsional oscillations in the drill string 9.
- the communication device 19 received data from the sensor modules 17, 20, 22 and provides that information to the control unit 24 fast enough to effectively determine the model parameters.
- the BHA 10 includes a processor 21.
- FIG. 1 also includes a plurality of leaky feeder antennas 25. Only one antenna is required and the lengths can vary as shown by the differences in antennas 25a and 25b.
- Tripping may be necessary for a number of well operations involving a change to the configuration of the bottom-hole assembly, such as replacing the bit, adding a mud motor, or adding measurement while drilling (MWD) or logging while drilling (LWD) tools. Tripping can take many hours, depending on the depth to which drilling has progressed. The ability to maintain
- an adapter sub that converts signals received at a top pipe segment into a radio frequency signal. This signal is received by leaky feeder antenna 25 and provided to, for example, control unit 24 (or other computing device) for further processing.
- the adapter sub 30 is best shown in FIG. 2 and shall be understood as being attached to the top 8 or one of the top segments of drill pipe.
- the adapter sub 30 may be connected to the swivel 27 or another such device.
- the sub 30 may include a converter 34 and an antenna 32.
- the antenna 32 provides signals to and receives signals from the leaky feeder antenna 25.
- the converter 34 converts a signal received by the antenna 32 into a format for transmission though pipe segment 8 (e.g., it may convert this signal into a signal used in a wire pipe transmission system) and vice versa.
- FIG. 3 shows an example of a leaky feeder antenna 25.
- the leaky feeder 25 may be formed from a coaxial cable 40 having an inner conductor 48 surrounded by dielectric 46 and shielding 44. Small sections of small sections 42 of its shielding 44 are stripped away to allow radio frequency (RF) signals to escape/enter.
- RF radio frequency
- Leaky feeders which act as extended antennas and may also be called radiating cables.
- various analysis components may be used, including digital and/or an analog systems.
- the controller unit 24 and the processor 21 can include digital or analog systems.
- the system may have components such as a processor, storage media, memory, input, output, communications link (wired, wireless, 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, operator, owner, user or other such personnel, in addition to the functions described in this disclosure.
- a power supply e.g., at least one of a generator, a remote supply and a battery
- vacuum supply e.g., at least one of a generator, a remote supply and a battery
- pressure supply e.g., at least one of a generator, a remote supply and a battery
- motive force such as a translational force, propulsional force or a rotational force
- magnet e.g., magnet, electromagnet
- sensor e.g., at least one of a generator, a remote supply and a battery
- motive force such as a translational force, propulsional force or a rotational force
- magnet electromagnet
- sensor electrode
- transmitter transmitter
- receiver transceiver
- transceiver antenna
- controller optical unit
- mechanical unit such as a shock absorber, vibration absorber, or hydraulic thruster
- electrical unit or electromechanical unit may be included in support of the various aspects discussed herein or in support of other functions beyond this disclosure.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/446,987 US20160032715A1 (en) | 2014-07-30 | 2014-07-30 | Rig telemetry system |
PCT/US2015/042668 WO2016019022A1 (en) | 2014-07-30 | 2015-07-29 | Rig telemetry system |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3194721A1 true EP3194721A1 (en) | 2017-07-26 |
EP3194721A4 EP3194721A4 (en) | 2018-03-28 |
Family
ID=55179523
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15827066.0A Withdrawn EP3194721A4 (en) | 2014-07-30 | 2015-07-29 | Rig telemetry system |
Country Status (6)
Country | Link |
---|---|
US (1) | US20160032715A1 (en) |
EP (1) | EP3194721A4 (en) |
CN (1) | CN106574497A (en) |
BR (1) | BR112017001461A2 (en) |
CA (1) | CA2956330A1 (en) |
WO (1) | WO2016019022A1 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20170138181A1 (en) * | 2015-11-16 | 2017-05-18 | Sure Shot Wireline Inc. | Method and system for logging a well |
US10167671B2 (en) | 2016-01-22 | 2019-01-01 | Weatherford Technology Holdings, Llc | Power supply for a top drive |
US10690261B2 (en) * | 2016-12-23 | 2020-06-23 | Rosemount Inc. | Multi-pressure rated valve assembly |
US10954753B2 (en) | 2017-02-28 | 2021-03-23 | Weatherford Technology Holdings, Llc | Tool coupler with rotating coupling method for top drive |
US11131151B2 (en) | 2017-03-02 | 2021-09-28 | Weatherford Technology Holdings, Llc | Tool coupler with sliding coupling members for top drive |
US10711574B2 (en) | 2017-05-26 | 2020-07-14 | Weatherford Technology Holdings, Llc | Interchangeable swivel combined multicoupler |
US10544631B2 (en) | 2017-06-19 | 2020-01-28 | Weatherford Technology Holdings, Llc | Combined multi-coupler for top drive |
US10355403B2 (en) | 2017-07-21 | 2019-07-16 | Weatherford Technology Holdings, Llc | Tool coupler for use with a top drive |
US11441412B2 (en) * | 2017-10-11 | 2022-09-13 | Weatherford Technology Holdings, Llc | Tool coupler with data and signal transfer methods for top drive |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4800351A (en) * | 1987-09-10 | 1989-01-24 | Andrew Corporation | Radiating coaxial cable with improved flame retardancy |
US5465395A (en) * | 1991-04-22 | 1995-11-07 | Bartram; David V. | Communication via leaky cables |
AU735674B2 (en) * | 1997-05-28 | 2001-07-12 | Heponi Pty Limited | Underground mine communications |
US8544564B2 (en) * | 2005-04-05 | 2013-10-01 | Halliburton Energy Services, Inc. | Wireless communications in a drilling operations environment |
CN101263276B (en) * | 2005-08-04 | 2011-12-21 | 英特里瑟夫国际控股有限公司 | interface and method for wellbore telemetry system |
US20070030167A1 (en) * | 2005-08-04 | 2007-02-08 | Qiming Li | Surface communication apparatus and method for use with drill string telemetry |
US8525690B2 (en) * | 2009-02-20 | 2013-09-03 | Aps Technology, Inc. | Synchronized telemetry from a rotating element |
US8462013B2 (en) * | 2009-06-30 | 2013-06-11 | Schlumberger Technology Corporation | Apparatus, system, and method for communicating while logging with wired drill pipe |
US9140823B2 (en) * | 2010-04-27 | 2015-09-22 | National Oilwell Varco, L.P. | Systems and methods for using wireless tags with downhole equipment |
GB201010095D0 (en) * | 2010-06-16 | 2010-07-21 | Wfs Technologies Ltd | Downhole communications and power transfer systems |
-
2014
- 2014-07-30 US US14/446,987 patent/US20160032715A1/en not_active Abandoned
-
2015
- 2015-07-29 WO PCT/US2015/042668 patent/WO2016019022A1/en active Application Filing
- 2015-07-29 BR BR112017001461A patent/BR112017001461A2/en not_active Application Discontinuation
- 2015-07-29 EP EP15827066.0A patent/EP3194721A4/en not_active Withdrawn
- 2015-07-29 CN CN201580041552.XA patent/CN106574497A/en active Pending
- 2015-07-29 CA CA2956330A patent/CA2956330A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
US20160032715A1 (en) | 2016-02-04 |
EP3194721A4 (en) | 2018-03-28 |
BR112017001461A2 (en) | 2017-12-05 |
CN106574497A (en) | 2017-04-19 |
WO2016019022A1 (en) | 2016-02-04 |
CA2956330A1 (en) | 2016-02-04 |
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Legal Events
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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17P | Request for examination filed |
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AX | Request for extension of the european patent |
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DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
A4 | Supplementary search report drawn up and despatched |
Effective date: 20180226 |
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RIC1 | Information provided on ipc code assigned before grant |
Ipc: E21B 47/12 20120101AFI20180220BHEP Ipc: E21B 47/18 20120101ALI20180220BHEP Ipc: E21B 17/00 20060101ALI20180220BHEP |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
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18W | Application withdrawn |
Effective date: 20190912 |