CA1242244A - Method and apparatus for communicating with downhole measurement-while-drilling equipment when said equipment is on the surface - Google Patents
Method and apparatus for communicating with downhole measurement-while-drilling equipment when said equipment is on the surfaceInfo
- Publication number
- CA1242244A CA1242244A CA000513833A CA513833A CA1242244A CA 1242244 A CA1242244 A CA 1242244A CA 000513833 A CA000513833 A CA 000513833A CA 513833 A CA513833 A CA 513833A CA 1242244 A CA1242244 A CA 1242244A
- Authority
- CA
- Canada
- Prior art keywords
- equipment
- transmitter
- receiver
- data
- assembly
- 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.)
- Expired
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims description 22
- 238000004891 communication Methods 0.000 claims abstract description 3
- 238000003860 storage Methods 0.000 claims description 19
- 238000013500 data storage Methods 0.000 claims description 13
- 230000001939 inductive effect Effects 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 230000001702 transmitter Effects 0.000 claims description 2
- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 241000239290 Araneae Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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
- E21B47/00—Survey of boreholes or wells
- E21B47/26—Storing data down-hole, e.g. in a memory or on a record carrier
Landscapes
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Geophysics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
Abstract of the Disclosure Communication with a measuring-while-drilling equipment sub, when the sub is at the surface, is established by placing a transmitter-receiver within transmitting range of the elec-trode/antenna array of the sub. The transmitter-receiver must be compatible with the sub equipment and be capable of trans-mitting to the sub instructions to dump the sub memory and/or add data to the sub memory.
Description
2~
Background of the Invention The present invention is directed to a method and appa-ratus which is used in conjunction with conventional downhole measurement-while-drilling equipment to establish communica-s tion therewith while the equipment sub is on the surface.
Recent developments in the area of measurement-while-drilling equipment has produced sufficient technological chan-ges in that the downhole equipment is able to accumulate a substantial amount of information, such as detailed descrip-tions of the various strata through which the drill is passiny.Much of this information is extremely important, but not essential to the on-going drilling operation~ The drilling operation would require all of the details of the drill bit orientation, so as to correct the advancing boring operation and would be less concerned with the actual strata being penetrated. Thus, the usual telemetry that is provided, either with a mud pulsing system or hard wired system would give priority to the boring iaformation and store the more detailed information concerning the various strata. Other known down-hole equipment only records formation data for subsequentrecovery and evaluation. It is then possible to recover any -stored information when the downhole equipment is periodically returned to the surface for bit replacement.
Prior systems for recovery of the stored data have em-ployed direct electrical connections, which require an aper-ture to be formed in the wall of the downhole equipment sub.
Having an aperture in the wall of the sub creates the problem of weakening the structure creating the possibility of frac-turing the sub with the possible resulting loss of the downhole equipment requiring an expensive fishing recovery operation.
Other prior art systems have re~uired breaking open of the drill string, at the surface~ to either recover recording means itsel or gain access to the recording made while downhole.
Measurement-while-drilling resistivity sensors are ge-nerally transmitters and receivers of either the current (con-duction) type or induction type. Current type sensors include electrodes which are mounted on the surface of the sub for injecting and receiving current directly into and from the ~`
2~
drilling mud and formation immediately adjacent to the sub.
Induction type sensors include antenna coils on the surface of the sub for inducing and detecting currents into and from the surrounding drilling fluid and formation.
- ~ -Summary of the Invention The present invention provides a method and apparatus for communicating with a measurement-while-drilling sub when the downhole equipment is at the surface and without the need of special connections through a bore or port in the sub~ The present invention eliminates this additional port providing a safer, more reliable and easily operated system.
The present invention employs either electrodes or an-tenna coils to provide an electrical connection between data accumulation and storage circuits within the instrument sub and a data storage and processing device at the surface. The present invention connects or couples a surface deployed transmitter and receiver with the measurement-while-drilling resistivity sensor receiver and transmitter, respectively, lS preferably while the instrument sub is at the surface, for example during changing of the drilling bit. The surface deployed transmitter and receiver coupled to the sub~circuits have the capability of sending operating commands to the measurement-while-drilling sub and receiving from the sub data collected while the sub was downhole. The circuits within the measure~ent-while-drilling tool must permit data stored within the sub to be transmitted through the electrode/antenna by temporarily disconnecting or blocking the electrode/antenna from its normal operating circuitry (or limiting such opera-tion) to allow transmittal of the stored data. For example, thesurface equipment may activate a switching mechanism to tempor-arily permit the resistivity device to function as a data transmitting system instead of a resistivity measuring (data accumulation) system.
Brief DescriPtion of the Dr,awings An embodiment of the present invention will now be de-scribed by way of example with refexence to the accompanying drawing in which:
The single Figure shows a schematic section through a typical instrument subof a downhole assembly at the surface and coupled to communication equipment in accordance with the present invention.
Detailed Description of the Present Invention The single Figure schematically illustrates the present invention as it would be used in conjunction with a known downhole measurement-while-drilling instru~entation package.
The equipment sub 10 is formed of high strength steel and has an axial bore 12 and an annular cavity 14 in which are placed a transmitter 16, a receiver 18, an electrode/antenna array 20 and a data storage 22. It should be here noted that the present invention will apply to any type of downhole equipment having a transmitter and a receiver operatinq at any frequency with the primary purpose of gathering borehole information. If the equipment is an electrical sensorO then it can be of a con-ductive or inductive type, and if it is, then, the conductive type requires electrodes and the inductive type requires ~n-tenna. The electrode/antenna array 20 is accordingly mountedat or on the sub's surface with either a single array for transmitting and receiving or with separate sections for trans-mitting and receiving. It should be noted that the present invention would also apply to acoustical equipment in the sonic range or any other type of measuring equipment operating in any frequency range with appropriate transmitting and receiving means mounted on the sub.
The operation of the measurement-while-drilling equipment is quite conventional with the information being gathered while the equipment is operating downhole and, in appropriate cases, only that data which is necessary to the boring operation being transmitted to the surface. The remaining information, such as strata configurations, would be placed into the storage for readout at a subsequent time. The downhole equipment could also be a system which would only record while downhole, with all data being recovered when the instrument sub is at the surface.
A surface communicator shown generally at 24 includes a transmitter 26, a receiver 28, and surface circuits 30 for data acquisition and system control. The surface communicator 24 must be compatible with the downhole equipment so that if the downhole equipment is of the inductive type, the surface equipment would likewise be of the inductive type. The trans-mitter 26 and receiver 28 of the communicator 24, for the inductive example, would be placed within transmitting range of the equipment sub 10 when the sub is at the surface, for example when the downhole equipment had been returned to the surface for bit replacement. In a conduction or current type system, there would have to be electrical contact between the electrodes as shown in the drawing. While the equipment sub i5 at the surface, and without being detached from the drill string or without the sub 10 being especially penetrated, the surface communicator 24 is brought to a position where the elec~
trode/antenna of the transmitter 26 and receiver 28 can contact or be coupled to the receiver and transmitter electrode/antenna array 20 of the eguipment sub 10. The surface equipment would then instruct the downhole equipment by the transmitter 26 sending instructions through array 20 and the receiver 18 for the data storage 22 to read out and transmit the stored information through the transmitter 16 and the array 20, the information being received by receiver 28 and sent to the circuits 30 where the data will be stored and/or processed ac-cordingly. Once the data transmission has been completed, it is possible to either reprogram or instruct the downhole equipment by transmitting the ap~ropriate information from the surface circuits 30 through the transmitter 26 to the array 20, the receiver 18 and into the data storage 22. The type of information that could be stored would include instructions for the data measuring/acquisition system of the sub 10 regarding anticipated drilling speed and direction or perhaps an expected profile of the geology of the area being bored so as to enable a comparison between the actual and the predicted geology.
Also, selections from a menu of measurements that can be made could be loaded into data storage 22.
An alternate embodi~ent of the present invention would include a sonde mounted within the bore of a sub by appropriate means, such as spider web brackets. The sonde would include data storage and resistivity sensor electronics with the bore mounted sensor electronics connected to sub mounted sensor antenna means. The operation would be the same as described above with compatible surface equipment being coupled to the sensor antenna means to transmit instructions and receive data collected from downhole.
The present invention could also be used in recovering data in any instance where data is collected and stored in a sealed container, and it is desirous to maintain the sealed condition of the container. For example, recovering flow rate data from a pipeline by the present invention ~ould avoid downtime and possible environmentally damaging spills. Other examples would include recovering data concerning activity within a nuclear cell or temperature/pressure conditions with-in a container housing hazardous materials.
~ he above-described apparatus normally operat~ in the radio frequency range. The present invention could also be used with sonic equipment by substitution of appropriate sensors.
The foregoing disclosure and description of the invention is illustrative and explanatory thereof, and various changes in the method steps as well as in the details of the illustrated apparatus may be made-within the scope of the appended claims without departing from the spirit of the invention.
Background of the Invention The present invention is directed to a method and appa-ratus which is used in conjunction with conventional downhole measurement-while-drilling equipment to establish communica-s tion therewith while the equipment sub is on the surface.
Recent developments in the area of measurement-while-drilling equipment has produced sufficient technological chan-ges in that the downhole equipment is able to accumulate a substantial amount of information, such as detailed descrip-tions of the various strata through which the drill is passiny.Much of this information is extremely important, but not essential to the on-going drilling operation~ The drilling operation would require all of the details of the drill bit orientation, so as to correct the advancing boring operation and would be less concerned with the actual strata being penetrated. Thus, the usual telemetry that is provided, either with a mud pulsing system or hard wired system would give priority to the boring iaformation and store the more detailed information concerning the various strata. Other known down-hole equipment only records formation data for subsequentrecovery and evaluation. It is then possible to recover any -stored information when the downhole equipment is periodically returned to the surface for bit replacement.
Prior systems for recovery of the stored data have em-ployed direct electrical connections, which require an aper-ture to be formed in the wall of the downhole equipment sub.
Having an aperture in the wall of the sub creates the problem of weakening the structure creating the possibility of frac-turing the sub with the possible resulting loss of the downhole equipment requiring an expensive fishing recovery operation.
Other prior art systems have re~uired breaking open of the drill string, at the surface~ to either recover recording means itsel or gain access to the recording made while downhole.
Measurement-while-drilling resistivity sensors are ge-nerally transmitters and receivers of either the current (con-duction) type or induction type. Current type sensors include electrodes which are mounted on the surface of the sub for injecting and receiving current directly into and from the ~`
2~
drilling mud and formation immediately adjacent to the sub.
Induction type sensors include antenna coils on the surface of the sub for inducing and detecting currents into and from the surrounding drilling fluid and formation.
- ~ -Summary of the Invention The present invention provides a method and apparatus for communicating with a measurement-while-drilling sub when the downhole equipment is at the surface and without the need of special connections through a bore or port in the sub~ The present invention eliminates this additional port providing a safer, more reliable and easily operated system.
The present invention employs either electrodes or an-tenna coils to provide an electrical connection between data accumulation and storage circuits within the instrument sub and a data storage and processing device at the surface. The present invention connects or couples a surface deployed transmitter and receiver with the measurement-while-drilling resistivity sensor receiver and transmitter, respectively, lS preferably while the instrument sub is at the surface, for example during changing of the drilling bit. The surface deployed transmitter and receiver coupled to the sub~circuits have the capability of sending operating commands to the measurement-while-drilling sub and receiving from the sub data collected while the sub was downhole. The circuits within the measure~ent-while-drilling tool must permit data stored within the sub to be transmitted through the electrode/antenna by temporarily disconnecting or blocking the electrode/antenna from its normal operating circuitry (or limiting such opera-tion) to allow transmittal of the stored data. For example, thesurface equipment may activate a switching mechanism to tempor-arily permit the resistivity device to function as a data transmitting system instead of a resistivity measuring (data accumulation) system.
Brief DescriPtion of the Dr,awings An embodiment of the present invention will now be de-scribed by way of example with refexence to the accompanying drawing in which:
The single Figure shows a schematic section through a typical instrument subof a downhole assembly at the surface and coupled to communication equipment in accordance with the present invention.
Detailed Description of the Present Invention The single Figure schematically illustrates the present invention as it would be used in conjunction with a known downhole measurement-while-drilling instru~entation package.
The equipment sub 10 is formed of high strength steel and has an axial bore 12 and an annular cavity 14 in which are placed a transmitter 16, a receiver 18, an electrode/antenna array 20 and a data storage 22. It should be here noted that the present invention will apply to any type of downhole equipment having a transmitter and a receiver operatinq at any frequency with the primary purpose of gathering borehole information. If the equipment is an electrical sensorO then it can be of a con-ductive or inductive type, and if it is, then, the conductive type requires electrodes and the inductive type requires ~n-tenna. The electrode/antenna array 20 is accordingly mountedat or on the sub's surface with either a single array for transmitting and receiving or with separate sections for trans-mitting and receiving. It should be noted that the present invention would also apply to acoustical equipment in the sonic range or any other type of measuring equipment operating in any frequency range with appropriate transmitting and receiving means mounted on the sub.
The operation of the measurement-while-drilling equipment is quite conventional with the information being gathered while the equipment is operating downhole and, in appropriate cases, only that data which is necessary to the boring operation being transmitted to the surface. The remaining information, such as strata configurations, would be placed into the storage for readout at a subsequent time. The downhole equipment could also be a system which would only record while downhole, with all data being recovered when the instrument sub is at the surface.
A surface communicator shown generally at 24 includes a transmitter 26, a receiver 28, and surface circuits 30 for data acquisition and system control. The surface communicator 24 must be compatible with the downhole equipment so that if the downhole equipment is of the inductive type, the surface equipment would likewise be of the inductive type. The trans-mitter 26 and receiver 28 of the communicator 24, for the inductive example, would be placed within transmitting range of the equipment sub 10 when the sub is at the surface, for example when the downhole equipment had been returned to the surface for bit replacement. In a conduction or current type system, there would have to be electrical contact between the electrodes as shown in the drawing. While the equipment sub i5 at the surface, and without being detached from the drill string or without the sub 10 being especially penetrated, the surface communicator 24 is brought to a position where the elec~
trode/antenna of the transmitter 26 and receiver 28 can contact or be coupled to the receiver and transmitter electrode/antenna array 20 of the eguipment sub 10. The surface equipment would then instruct the downhole equipment by the transmitter 26 sending instructions through array 20 and the receiver 18 for the data storage 22 to read out and transmit the stored information through the transmitter 16 and the array 20, the information being received by receiver 28 and sent to the circuits 30 where the data will be stored and/or processed ac-cordingly. Once the data transmission has been completed, it is possible to either reprogram or instruct the downhole equipment by transmitting the ap~ropriate information from the surface circuits 30 through the transmitter 26 to the array 20, the receiver 18 and into the data storage 22. The type of information that could be stored would include instructions for the data measuring/acquisition system of the sub 10 regarding anticipated drilling speed and direction or perhaps an expected profile of the geology of the area being bored so as to enable a comparison between the actual and the predicted geology.
Also, selections from a menu of measurements that can be made could be loaded into data storage 22.
An alternate embodi~ent of the present invention would include a sonde mounted within the bore of a sub by appropriate means, such as spider web brackets. The sonde would include data storage and resistivity sensor electronics with the bore mounted sensor electronics connected to sub mounted sensor antenna means. The operation would be the same as described above with compatible surface equipment being coupled to the sensor antenna means to transmit instructions and receive data collected from downhole.
The present invention could also be used in recovering data in any instance where data is collected and stored in a sealed container, and it is desirous to maintain the sealed condition of the container. For example, recovering flow rate data from a pipeline by the present invention ~ould avoid downtime and possible environmentally damaging spills. Other examples would include recovering data concerning activity within a nuclear cell or temperature/pressure conditions with-in a container housing hazardous materials.
~ he above-described apparatus normally operat~ in the radio frequency range. The present invention could also be used with sonic equipment by substitution of appropriate sensors.
The foregoing disclosure and description of the invention is illustrative and explanatory thereof, and various changes in the method steps as well as in the details of the illustrated apparatus may be made-within the scope of the appended claims without departing from the spirit of the invention.
Claims (28)
1. A method for communicating between surface equipment and a downhole measurement-while-drilling assembly having a transmitter and a receiver, both connected to information storage, and electrode/antenna array means, while said assem-bly is at the surface, comprising the steps of:
placing within contact/transmitting range of said elec-trode/antenna array means compatible electrode/antenna array means of said surface equipment; and communicating directly from data acquisition means of the surface equipment to the downhole equipment to transmit infor-mation to and receive data from said information storage.
placing within contact/transmitting range of said elec-trode/antenna array means compatible electrode/antenna array means of said surface equipment; and communicating directly from data acquisition means of the surface equipment to the downhole equipment to transmit infor-mation to and receive data from said information storage.
2. A method according to Claim 1 wherein information transmitted from said surface equipment includes instructions for the assembly information storage to transmit data contained in said information storage.
3. A method according to Claim 1 wherein information transmitted from said surface equipment includes instructions to be stored in said assembly information storage pertaining to further work of the assembly in a downhole environment.
4. A method according to Claim 1 wherein said elec-trode/antenna array means are conductive.
5. A method according to Claim 1 wherein said elec-trode/antenna array means are inductive.
6. An apparatus for communicating with a downhole mea-surement-while-drilling assembly, while said assembly is lo-cated at the surface, said assembly including a transmitter and a receiver both connected to data storage means and to an electrode/antenna array means, said apparatus comprising:
a transmitter and a receiver having a compatible elec-trode/antenna array positionable within transmitting range of the electrode/sensor array means of said assembly; and data acquisition and system control means connected to said transmitter and receiver whereby instructions can be sent by said surface transmitter to said assembly receiver in-structing transmission of information from said data storage means through said assembly transmitter to the surface receiver for analysis by said data acquisition and system control means and instructions for the downhole equipment can likewise be transmitted to be stored in said data storage means.
a transmitter and a receiver having a compatible elec-trode/antenna array positionable within transmitting range of the electrode/sensor array means of said assembly; and data acquisition and system control means connected to said transmitter and receiver whereby instructions can be sent by said surface transmitter to said assembly receiver in-structing transmission of information from said data storage means through said assembly transmitter to the surface receiver for analysis by said data acquisition and system control means and instructions for the downhole equipment can likewise be transmitted to be stored in said data storage means.
7. Apparatus according to Claim 6 wherein said in-structions include data regarding downhole operations when said assembly is returned to a downhole environment.
8. Apparatus according to Claim 7 wherein said data includes drilling instructions.
9. Apparatus according to Claim 7 wherein said data includes expected geological profile information.
10. Apparatus according to Claim 6 wherein said assembly comprises a sonde having a transmitter, a receiver and data storage means contained therein.
11. A method for communicating with measurement equipment forming a portion of a closed assembly without opening said assembly, said equipment including a transmitter, a receiver, information storage and electrode/antenna array means mounted at or on the surface of said assembly comprising the steps of:
placing within transmitting range of said electrode/an-tenna array means of said equipment compatible readout elec-trode/antenna array means of data acquisition means; and communicating directly between said data acquisition means and said equipment to transmit and receive data to and from said information storage.
placing within transmitting range of said electrode/an-tenna array means of said equipment compatible readout elec-trode/antenna array means of data acquisition means; and communicating directly between said data acquisition means and said equipment to transmit and receive data to and from said information storage.
12. A method according to Claim 11 wherein information transmitted from said data acquisition means includes in-structions for the information storage to transmit data con-tained in said storage.
13. A method according to Claim 11 wherein information transmitted from said data acquisition means includes in-structions to be stored in said equipment information storage pertaining to the further data to be gathered.
14. A method according to Claim 11 wherein said elec-trode/antenna array means are conductive.
15. A method according to Claim 11 wherein said elec-trode/antenna array means are inductive.
16. An apparatus for communicating with measurement equipment in a closed assembly without opening the assembly, said equipment including a transmitter, a receiver, data stor-age means, and an antenna/electrode array means, said apparatus comprising:
transmitter means and receiver means positionable to within transmitting range of the antenna/electrode array means of said equipment; and data acquisition and system control means connected to said transmitter means and said receiver means whereby in-structions can be sent by said transmitter means to said equipment receiver instructing transmission of information from said data storage means through said equipment trans-mitter to the receiver means for analysis by said data acqui-sition and system control means and instructions for the equipment can likewise be transmitted by said transmitter for storage in said data storage means.
transmitter means and receiver means positionable to within transmitting range of the antenna/electrode array means of said equipment; and data acquisition and system control means connected to said transmitter means and said receiver means whereby in-structions can be sent by said transmitter means to said equipment receiver instructing transmission of information from said data storage means through said equipment trans-mitter to the receiver means for analysis by said data acqui-sition and system control means and instructions for the equipment can likewise be transmitted by said transmitter for storage in said data storage means.
17. An apparatus according to Claim 16 wherein said in-structions include data regarding future operations.
18. An apparatus according to Claim 17 wherein said data includes operating parameters.
19. An apparatus according to Claim 16 wherein said transmitter means and receiver means operate in a sonic fre-quency range.
20. An apparatus according to Claim 16 wherein said transmitter means and receiver means operate in a radio fre-quency range.
21. A method for communicating between surface equip-ment and a downhole measurement-while-drilling assembly, when said assembly is at the surface and which assembly includes at least one sensor for measuring a downhole para-meter and having sensing means, a transmitter, a receiver, and information storage means, said transmitter and receiver being connected between said sensing means and said information storage means and operable in both a normal sensing mode and in a communication mode, said surface equipment including data acquisition means, commun-icating means, and a transmitter and a receiver connected between said data acquisition means and said communicating means, comprising the steps of:
placing within range of said downhole sensing means compatible communicating means of said surface equipment;
and communicating directly from said data acquisition means of said surface equipment through said transmitter and said communicating means to said downhole equipment sensing means and receiver to said information storage means and from said information storage means through said transmitter said downhole equipment sensing means, said surface equipment communicating means and receiver to said data acquisition means.
placing within range of said downhole sensing means compatible communicating means of said surface equipment;
and communicating directly from said data acquisition means of said surface equipment through said transmitter and said communicating means to said downhole equipment sensing means and receiver to said information storage means and from said information storage means through said transmitter said downhole equipment sensing means, said surface equipment communicating means and receiver to said data acquisition means.
22. A method according to Claim 21 further comprising the step of:
transmitting from said surface equipment to said down-hole equipment instructions for the information storage means to transmit data contained therein to said data acquisition means.
transmitting from said surface equipment to said down-hole equipment instructions for the information storage means to transmit data contained therein to said data acquisition means.
23. A method according to Claim 21 further comprising the step of:
transmitting from said surface equipment to said down-hole equipment instructions to be stored in said inform-ation storage means pertaining to further sensing to be performed by said at least one sensor in a downhole environment.
transmitting from said surface equipment to said down-hole equipment instructions to be stored in said inform-ation storage means pertaining to further sensing to be performed by said at least one sensor in a downhole environment.
24. A method according to Claim 21 wherein said sensing and communicating means are electrodes and said step of bringing said sensing and communicating means within range comprises making electrical contact.
25. A method according to Claim 21 wherein said sensing and communicating means are antennas.
26. A method according to Claim 21 wherein said transmitter and said receiver operate using sonic waves.
27. A method according to Claim 21 wherein said transmitter and said receiver operate using electromagnetic waves.
28. A method according to Claim 21 wherein said downhole measurement-while-drilling assembly remains closed.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US77414485A | 1985-09-09 | 1985-09-09 | |
| US774,144 | 1985-09-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1242244A true CA1242244A (en) | 1988-09-20 |
Family
ID=25100368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000513833A Expired CA1242244A (en) | 1985-09-09 | 1986-07-15 | Method and apparatus for communicating with downhole measurement-while-drilling equipment when said equipment is on the surface |
Country Status (5)
| Country | Link |
|---|---|
| CA (1) | CA1242244A (en) |
| DE (1) | DE3630674A1 (en) |
| FR (1) | FR2587059A1 (en) |
| GB (1) | GB2180124B (en) |
| NL (1) | NL8602271A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4992787A (en) * | 1988-09-20 | 1991-02-12 | Teleco Oilfield Services Inc. | Method and apparatus for remote signal entry into measurement while drilling system |
| GB2247904A (en) * | 1990-09-13 | 1992-03-18 | Axl Systems Ltd | Identifying metal articles |
| US6831571B2 (en) * | 1999-12-21 | 2004-12-14 | Halliburton Energy Services, Inc. | Logging device data dump probe |
| DE10044594A1 (en) * | 2000-09-08 | 2002-04-04 | Zueblin Ag | Method for energizing and retrieving data from deep bore holes uses radio transmission through the wall of the boring column |
| CA2460371C (en) * | 2004-03-09 | 2008-08-12 | Ryan Energy Technologies | High speed data communication protocol for use with em data telemetry antennae |
| US20070168132A1 (en) * | 2005-05-06 | 2007-07-19 | Schlumberger Technology Corporation | Wellbore communication system and method |
| BR102017027366B1 (en) * | 2017-12-18 | 2024-01-09 | Insfor - Innovative Solutions For Robotics Ltda - Me | OPERATING SYSTEM FOR LAUNCHING, MANAGEMENT AND CONTROL OF ROBOTIZED AUTONOMOUS UNIT (RAU) FOR WORK IN OIL AND GAS WELLS AND WELL PROFILING METHOD WITH THE AID OF SAID SYSTEM |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3713334A (en) * | 1971-01-25 | 1973-01-30 | R Vann | Downhole recorder device for logging boreholes |
| JPS57123319A (en) * | 1981-01-22 | 1982-07-31 | Kiso Jiban Consultant Kk | Method and apparatus for subsurface exploration |
| US4639549A (en) * | 1984-01-31 | 1987-01-27 | Sony Corporation | Cordless telephone |
| JPS60223340A (en) * | 1984-04-20 | 1985-11-07 | Sony Corp | Cordless telephone set |
| DE3441907A1 (en) * | 1984-11-16 | 1986-05-28 | Robert Bosch Gmbh, 7000 Stuttgart | RADIO NETWORK FOR TRANSMITTING INFORMATION BETWEEN A PAIR OF MULTIPLE RADIO STATION PAIRS |
-
1986
- 1986-07-15 CA CA000513833A patent/CA1242244A/en not_active Expired
- 1986-07-25 GB GB8618194A patent/GB2180124B/en not_active Expired - Lifetime
- 1986-09-08 FR FR8612576A patent/FR2587059A1/en not_active Withdrawn
- 1986-09-09 DE DE19863630674 patent/DE3630674A1/en not_active Withdrawn
- 1986-09-09 NL NL8602271A patent/NL8602271A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| NL8602271A (en) | 1987-04-01 |
| GB8618194D0 (en) | 1986-09-03 |
| GB2180124A (en) | 1987-03-18 |
| DE3630674A1 (en) | 1987-03-12 |
| GB2180124B (en) | 1990-04-18 |
| FR2587059A1 (en) | 1987-03-13 |
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