CN112983393A - DAS-based in-well environment parameter acquisition device and method - Google Patents
DAS-based in-well environment parameter acquisition device and method Download PDFInfo
- Publication number
- CN112983393A CN112983393A CN202110154052.4A CN202110154052A CN112983393A CN 112983393 A CN112983393 A CN 112983393A CN 202110154052 A CN202110154052 A CN 202110154052A CN 112983393 A CN112983393 A CN 112983393A
- Authority
- CN
- China
- Prior art keywords
- module
- well
- das
- environmental parameter
- power supply
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000007613 environmental effect Effects 0.000 claims abstract description 71
- 230000003287 optical effect Effects 0.000 claims description 13
- 230000006698 induction Effects 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 230000001133 acceleration Effects 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 238000005553 drilling Methods 0.000 claims description 3
- 230000005684 electric field Effects 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 230000008054 signal transmission Effects 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Images
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
-
- 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
- E21B47/06—Measuring temperature or pressure
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
Abstract
The invention discloses a DAS-based device and method for acquiring environmental parameters in a well. The device comprises an aboveground DAS instrument module, a power supply module, an environmental parameter sensor module, a vibration device module and a control circuit module, wherein the environmental parameter sensor module, the vibration device module and the control circuit module are respectively connected with the power supply module through circuits; the environmental parameter sensor module, the control circuit module, the vibration device module and the aboveground DAS instrument module are sequentially in communication connection; the power supply module provides energy for each module, the environmental parameter sensor module collects environmental parameters in the well, the control circuit module generates corresponding control signals according to the environmental parameters, the vibration device module is controlled to send out vibration signals, and the DAS instrument module on the well demodulates the vibration signals to obtain the environmental parameters in the well. The invention aims to solve the problem that the traditional electronic sensor needs to use a cable for power supply and signal transmission when being used in a well in the prior art, and combines a wireless electronic sensor with a DAS (data acquisition system) system to realize the measurement of environmental parameters in the well, thereby reducing the use of cables in the well and lowering the cost of oil and gas exploitation.
Description
Technical Field
The invention relates to the field of acquisition of in-well environmental parameters, in particular to a DAS-based in-well environmental parameter acquisition device and method.
Background
As the exploitation time of oil and gas resources in China increases, the difficulty of exploitation gradually increases, and the environment in a well is more complicated. In the process of oil and gas exploration and exploitation, environmental parameters (temperature, pressure and the like) in a well are one of important points concerned by engineers, and important basis is provided for judging complex environments in the well.
The mode that traditional electronic sensor was applied to the in-process of oil well and adopts wireless signal transmission is difficult to realize, need use the cable to supply power and signal transmission, and when sensor quantity was more, the quantity of cable also rose thereupon, took the well space, has increased the oil gas exploitation degree of difficulty and cost.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a DAS-based device and method for acquiring environmental parameters in a well.
In order to achieve the purpose of the invention, the invention adopts the technical scheme that:
a DAS-based in-well environmental parameter acquisition device comprises an aboveground DAS instrument module, a power supply module, an environmental parameter sensor module, a vibration device module and a control circuit module, wherein the environmental parameter sensor module, the vibration device module and the control circuit module are respectively connected with the power supply module through circuits; the environmental parameter sensor module, the control circuit module, the vibration device module and the aboveground DAS instrument module are sequentially in communication connection;
the power supply module is used for providing energy for each module, the environmental parameter sensor module is used for collecting environmental parameters in a well and sending the environmental parameters to the control circuit module, the control circuit module is used for generating corresponding control signals according to received environmental parameter information and transmitting the control signals to the vibration device module, the vibration device module is used for sending vibration signals representing the environmental parameters according to the received control signals, and the DAS instrument module on the well is used for collecting the vibration signals and demodulating the vibration signals to obtain the environmental parameters in the well.
The invention has the following beneficial effects: the wireless in-well environmental parameter acquisition device is combined with the DAS and the in-well optical cable, and the environmental information acquired by the in-well environmental parameter acquisition device is transmitted to the well by the optical cable, so that the number of cables in the well is reduced, the underground space is saved, and other underground equipment can be conveniently operated; the DAS instrument and the optical cable in the well are originally used for collecting seismic signals in the well, and are combined with the environmental parameter acquisition device for use, so that the utilization rate of the DAS instrument and the optical cable in the well is improved, and the cost of oil-gas exploration is reduced.
Preferably, the power supply module adopts a high-temperature-resistant storage battery.
The preferred scheme has the following beneficial effects: the high-temperature-resistant storage battery is adopted for power supply, the underground extreme environment can be adapted, the reliability is high, and the energy can be repeatedly charged and utilized.
Preferably, the power supply module adopts a wireless induction power supply device, and the power supply cable and the induction power supply device connected to the power supply cable are matched to provide energy for other modules together.
The preferred scheme has the following beneficial effects: the problem of the battery insufficient energy storage in long-time collection operation process is solved, and the electric power on the ground can be utilized at any time for making the underground environment parameter acquisition device power-on work.
Preferably, the environmental parameter sensor module comprises a pressure sensor, a temperature sensor, a strain sensor, a chemical parameter sensor, a velocity sensor, an acceleration sensor, a displacement sensor, a magnetic field sensor and an electric field sensor.
The preferred scheme has the following beneficial effects: the underground environment parameters are sensed in multiple aspects by adopting various sensors, so that a user can comprehensively master the underground environment information.
Preferably, the specific method for the control circuit module to generate the corresponding control signal according to the received environment parameter information is to perform analog-to-digital conversion on the received environment parameter information, then perform coding according to a preset coding rule, and then generate the corresponding control signal according to a coding result.
The preferred scheme has the following beneficial effects: the information of the underground environment parameters is converted into coded information, so that the subsequent vibration device can conveniently use vibration to represent high level '1' and not vibrate to represent low level '0', and the information is transmitted to the well.
Preferably, the specific method for acquiring the downhole environment parameters by the uphole DAS instrument module is to acquire vibration signals by using an optical cable and decode the vibration signals according to a coding rule to acquire the downhole environment parameters.
The preferred scheme has the following beneficial effects: and the optical cable is utilized to receive the vibration information, and an electric cable for communication is not additionally laid in the underground, so that the underground space is further saved.
Preferably, the method for acquiring the environmental parameters in the well by applying the preferred scheme comprises the following steps:
s1, when the casing is laid after the drilling of the well to be tested is finished, the power supply module, the environmental parameter sensor module, the vibration device module and the control circuit module are fixed outside the casing wall in a close manner, the DAS instrument module on the well is placed on the well, and the connection among the modules is finished;
s2, collecting the environmental parameter information in the well by using the environmental parameter sensor module, and transmitting the information to the control circuit module;
s3, the control circuit module is used for carrying out analog-to-digital conversion on the acquired environment parameter digital signal, then the environment parameter digital signal is coded according to a preset coding rule, and a corresponding control signal is generated according to a coding result;
s4, sending a vibration signal representing the environmental parameter after receiving the control signal by using the vibration device module;
and S5, decoding the vibration signal according to a preset coding rule after the vibration signal is received by the aboveground DAS instrument module through the optical cable to obtain the underground environment parameter.
The preferred scheme has the following beneficial effects: compared with the traditional mode of transmitting signals in a well through cables, the DAS-based method for acquiring the environmental parameters in the well can transmit information in the well more stably, reliably and efficiently by fully utilizing the advantages of small optical cable transmission loss, electromagnetic interference resistance, extreme environment tolerance and the like.
Drawings
FIG. 1 is a schematic structural diagram of a DAS-based in-well environmental parameter acquisition device according to the present invention;
FIG. 2 is a flow chart of a method for using a DAS-based in-well environmental parameter acquisition device in accordance with an embodiment of the present invention;
figure 3 is a schematic layout of the device in an embodiment of the invention,
fig. 4 is a schematic diagram of the present invention for encoding pressure information by using ASC.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, the invention provides a DAS-based in-well environmental parameter acquisition device, which includes an aboveground DAS instrument module, a power supply module, and an environmental parameter sensor module, a vibration device module, and a control circuit module, which are respectively connected to the power supply module through a circuit; the environmental parameter sensor module, the control circuit module, the vibration device module and the aboveground DAS instrument module are sequentially in communication connection;
the power supply module is used for providing energy for each module, the environmental parameter sensor module is used for collecting environmental parameters in a well and sending the environmental parameters to the control circuit module, the control circuit module is used for generating corresponding control signals according to received environmental parameter information and transmitting the control signals to the vibration device module, the vibration device module is used for sending vibration signals according to the received control signals, and the DAS instrument module on the well is used for collecting the vibration signals and demodulating the vibration signals to obtain underground environmental parameters.
In the embodiment of the invention, the power supply module adopts a high-temperature-resistant storage battery.
In the embodiment of the invention, the power supply module adopts a wireless induction power supply device, and is matched with a power supply cable and an induction power supply device connected to the power supply cable to supply energy to other modules.
In the embodiment of the invention, the environmental parameter sensor module comprises a pressure sensor, a temperature sensor, a strain sensor, a chemical parameter sensor, a speed sensor, an acceleration sensor, a displacement sensor, a magnetic field sensor and an electric field sensor.
The strain sensor can measure the strain of the casing wall, the strain sensor is tightly attached and fixed on the casing wall, when the casing wall deforms, the strain sensor measures the deformation of the casing wall, and the strain of the casing wall is converted into a strain analog quantity into a strain digital quantity through analog-to-digital conversion.
The speed sensor, the acceleration sensor and the displacement sensor are attached to the wall of the casing, and in the process of oil exploitation, the underground pressure is large, so that the motion state of the casing or other objects can be changed, and the speed, the acceleration and the displacement can be generated.
In the embodiment of the invention, the specific method for generating the corresponding control signal by the control circuit module according to the received environment parameter information is to perform analog-to-digital conversion on the received environment parameter information, then perform coding according to a preset coding rule, and generate the corresponding control signal according to a coding result.
In the embodiment of the invention, the specific method for acquiring the underground environment parameters by the aboveground DAS instrument module is to acquire vibration signals by using optical cables and decode the vibration signals according to coding rules to acquire the underground environment parameters
Referring to fig. 2, in an embodiment of the present invention, a method for applying the DAS-based in-well environmental parameter acquisition apparatus includes the following steps:
s1, when the casing is laid after the drilling of the well to be tested is finished, the power supply module, the environmental parameter sensor module, the vibration device module and the control circuit module are fixed outside the casing wall in a close manner, the DAS instrument module on the well is placed on the well, and the connection among the modules is finished; referring to fig. 3, when the power supply module uses the wireless induction power supply device, the power supply module is connected to an above-ground power supply cable during the process of laying the optical cable in the well, and the wireless induction power taking device takes power from the cable by induction to supply power to the environmental parameter sensor module and the like.
S2, collecting the environmental parameter information in the well by using the environmental parameter sensor module, and transmitting the information to the control circuit module; if the pressure sensor is adopted to measure the pressure in the well, the pressure analog quantity is converted into the pressure digital quantity through analog-to-digital conversion and then is transmitted to the control circuit module.
S3, the control circuit module is used for carrying out analog-to-digital conversion on the acquired environment parameter digital signal, then the environment parameter digital signal is coded according to a preset coding rule, and a corresponding control signal is generated according to a coding result; for example, as shown in fig. 4, the ASC encoding rule is used to encode the pressure information, a "1" code represents a high level, a "0" code represents a low level, the control circuit module sends out a control signal for driving the vibration device to vibrate within a time period t of the "1" code, and the control circuit module sends out a control signal for driving the vibration device not to vibrate within the time period t of the "0" code.
S4, sending a vibration signal representing the environmental parameter after receiving the control signal by using the vibration device module, and transmitting the vibration signal to the DAS instrument module on the well through media such as rock walls, casing walls and the like;
and S5, decoding the vibration signal according to a preset coding rule after the vibration signal is received by the aboveground DAS instrument module through the optical cable to obtain the underground environment parameter.
It will be appreciated by those of ordinary skill in the art that the embodiments described herein are intended to assist the reader in understanding the principles of the invention and are to be construed as being without limitation to such specifically recited embodiments and examples. Those skilled in the art can make various other specific changes and combinations based on the teachings of the present invention without departing from the spirit of the invention, and these changes and combinations are within the scope of the invention.
Claims (7)
1. A DAS-based in-well environmental parameter acquisition device is characterized in that: the system comprises an aboveground DAS instrument module, a power supply module, an environmental parameter sensor module, a vibration device module and a control circuit module, wherein the environmental parameter sensor module, the vibration device module and the control circuit module are respectively in circuit connection with the power supply module; the environmental parameter sensor module, the control circuit module, the vibration device module and the aboveground DAS instrument module are sequentially in communication connection;
the power supply module is used for providing energy for each module, the environmental parameter sensor module is used for collecting environmental parameters in a well and sending the environmental parameters to the control circuit module, the control circuit module is used for generating corresponding control signals according to received environmental parameter information and transmitting the control signals to the vibration device module, the vibration device module is used for sending vibration signals representing the environmental parameters according to the received control signals, and the aboveground DAS instrument module is used for collecting the vibration signals and demodulating the vibration signals to obtain the underground environmental parameters.
2. The DAS-based in-well environmental parameter acquisition device of claim 1, wherein: the power supply module adopts a high-temperature-resistant storage battery.
3. The DAS-based in-well environmental parameter acquisition device of claim 1, wherein: the power supply module adopts a wireless induction power supply device, and is matched with a power supply cable and the induction power supply device connected to the power supply cable to provide energy for other modules together.
4. A DAS-based in-well environmental parameter acquisition apparatus as claimed in claim 2 or claim 3, wherein: the environment parameter sensor module comprises a pressure sensor, a temperature sensor, a strain sensor, a chemical parameter sensor, a speed sensor, an acceleration sensor, a displacement sensor, a magnetic field sensor and an electric field sensor.
5. The DAS-based in-well environmental parameter acquisition device of claim 4, wherein: the specific method for generating the corresponding control signal according to the received environment parameter information by the control circuit module is to perform analog-to-digital conversion on the received environment parameter information, then perform coding according to a preset coding rule, and generate the corresponding control signal according to a coding result.
6. The DAS-based in-well environmental parameter acquisition device of claim 5, wherein: the specific method for acquiring the underground environment parameters by the aboveground DAS instrument module is to acquire vibration signals by using optical cables and decode the vibration signals according to coding rules to acquire the underground environment parameters.
7. A method of using the DAS-based in-well environmental parameter acquisition device of claims 1-6, comprising the steps of:
s1, when the casing is laid after the drilling of the well to be tested is finished, the power supply module, the environmental parameter sensor module, the vibration device module and the control circuit module are fixed outside the casing wall in a close manner, the DAS instrument module on the well is placed on the well, and the connection among the modules is finished;
s2, collecting the environmental parameter information in the well by using the environmental parameter sensor module, and transmitting the information to the control circuit module;
s3, the control circuit module is used for carrying out analog-to-digital conversion on the acquired environment parameter digital signal, then the environment parameter digital signal is coded according to a preset coding rule, and a corresponding control signal is generated according to a coding result;
s4, sending a vibration signal representing an environmental parameter after the vibration device module receives the control signal;
and S5, receiving the vibration signal through the optical cable by using the aboveground DAS instrument module, and then decoding the vibration signal according to a preset coding rule to obtain underground environment parameters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110154052.4A CN112983393A (en) | 2021-02-04 | 2021-02-04 | DAS-based in-well environment parameter acquisition device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110154052.4A CN112983393A (en) | 2021-02-04 | 2021-02-04 | DAS-based in-well environment parameter acquisition device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112983393A true CN112983393A (en) | 2021-06-18 |
Family
ID=76346918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110154052.4A Pending CN112983393A (en) | 2021-02-04 | 2021-02-04 | DAS-based in-well environment parameter acquisition device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112983393A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1143790A (en) * | 1978-04-17 | 1983-03-29 | Jerry B. West | Digital mineral logging system |
| CN2599238Y (en) * | 2002-10-18 | 2004-01-14 | 西安华舜测量设备有限责任公司 | Under well parameter measuring radio transmission device |
| CN101586458A (en) * | 2009-05-27 | 2009-11-25 | 杨厚荣 | Energy saving and efficiency increasing system for output well and (or) injection well |
| CN202578663U (en) * | 2012-03-12 | 2012-12-05 | 东莞市五峰科技有限公司 | Oilfield down-hole multi-parameter measurement system |
| CN104243583A (en) * | 2014-09-16 | 2014-12-24 | 西安电子科技大学 | Environment parameter collecting and remote transmitting system of linear oil extraction motor |
| CN106461806A (en) * | 2014-05-16 | 2017-02-22 | 希里克萨有限公司 | Method and system for downhole object location and orientation determination |
| CN110067554A (en) * | 2019-06-06 | 2019-07-30 | 中油奥博(成都)科技有限公司 | Three-component sound wave far detects well logging apparatus and its measurement method in well |
| CN111648762A (en) * | 2020-07-09 | 2020-09-11 | 中油奥博(成都)科技有限公司 | Special distributed armored optical cable for underground long-term dynamic monitoring and monitoring system and method |
| CN112130195A (en) * | 2020-10-13 | 2020-12-25 | 中油奥博(成都)科技有限公司 | Time-shifting VSP data acquisition system and method based on distributed optical fiber acoustic sensing |
-
2021
- 2021-02-04 CN CN202110154052.4A patent/CN112983393A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1143790A (en) * | 1978-04-17 | 1983-03-29 | Jerry B. West | Digital mineral logging system |
| CN2599238Y (en) * | 2002-10-18 | 2004-01-14 | 西安华舜测量设备有限责任公司 | Under well parameter measuring radio transmission device |
| CN101586458A (en) * | 2009-05-27 | 2009-11-25 | 杨厚荣 | Energy saving and efficiency increasing system for output well and (or) injection well |
| CN202578663U (en) * | 2012-03-12 | 2012-12-05 | 东莞市五峰科技有限公司 | Oilfield down-hole multi-parameter measurement system |
| CN106461806A (en) * | 2014-05-16 | 2017-02-22 | 希里克萨有限公司 | Method and system for downhole object location and orientation determination |
| CN104243583A (en) * | 2014-09-16 | 2014-12-24 | 西安电子科技大学 | Environment parameter collecting and remote transmitting system of linear oil extraction motor |
| CN110067554A (en) * | 2019-06-06 | 2019-07-30 | 中油奥博(成都)科技有限公司 | Three-component sound wave far detects well logging apparatus and its measurement method in well |
| CN111648762A (en) * | 2020-07-09 | 2020-09-11 | 中油奥博(成都)科技有限公司 | Special distributed armored optical cable for underground long-term dynamic monitoring and monitoring system and method |
| CN112130195A (en) * | 2020-10-13 | 2020-12-25 | 中油奥博(成都)科技有限公司 | Time-shifting VSP data acquisition system and method based on distributed optical fiber acoustic sensing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203214049U (en) | Wireless while-drilling measurement system | |
| CN103899301A (en) | Wireless measurement while drilling system and method | |
| RU2006133474A (en) | Borehole communication system and method | |
| EP2980351B1 (en) | Telemetry system and method of operating the same | |
| CN103696760B (en) | Near-bit measurement while drilling sound wave short distance transmission method and transmission device | |
| US6644403B2 (en) | Method and device for the measuring physical parameters in a production shaft of a deposit of underground fluid storage reservoir | |
| CN103590823A (en) | Device of measuring formation resistivity of drill | |
| CN100410488C (en) | Radio electromagnetic short transmission method and system | |
| CN104179495A (en) | While-drilling (WD) ground and downhole data interaction method and system | |
| US20100133833A1 (en) | Electrical power generation for downhole exploration or production devices | |
| CN202900265U (en) | A near-bit measurement while drilling sound wave short distance transmission device | |
| CN212003162U (en) | Electromagnetic wave logging-while-drilling parameter monitoring device | |
| CN203632686U (en) | Half-duplex communication circuit applied to oil well test system | |
| CN105464646A (en) | Communication device and method for downhole geological parameters | |
| CN104243583A (en) | Environment parameter collecting and remote transmitting system of linear oil extraction motor | |
| CN202305065U (en) | Wireless piezomagnetic sensor for absolute measurement of crustal stress of deep well | |
| CN112983393A (en) | DAS-based in-well environment parameter acquisition device and method | |
| CN102305065A (en) | Wireless signal transmission method and system for oil and gas wells | |
| CN112068267A (en) | Underground casing optical cable radiation avoiding method and system | |
| CN102031957A (en) | Rotating guiding well drilling signal receiving device based on underground mud turbine motor | |
| CN113006778A (en) | Quantum well logging method with ultrahigh sensitivity | |
| CN102817607A (en) | Underground communication system of continuous pipe drill | |
| CN110306973B (en) | Cable head wireless transmission device and method for through-bit logging instrument | |
| CN110630252B (en) | Measurement while drilling system and method for coiled tubing drilling | |
| CN202914087U (en) | Underground communication system for continuous pipe drilling machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |