CN114412453A - Ground-oriented underground communication method and system - Google Patents
Ground-oriented underground communication method and system Download PDFInfo
- Publication number
- CN114412453A CN114412453A CN202210068088.5A CN202210068088A CN114412453A CN 114412453 A CN114412453 A CN 114412453A CN 202210068088 A CN202210068088 A CN 202210068088A CN 114412453 A CN114412453 A CN 114412453A
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- China
- Prior art keywords
- instruction
- ground
- drill rod
- underground
- response
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Classifications
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- 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
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- 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
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
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- 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
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
- E21B44/005—Below-ground automatic control systems
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- 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
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
- E21B44/02—Automatic control of the tool feed
Abstract
The invention discloses a ground-oriented underground communication method and a ground-oriented underground communication system, which relate to the technical field of drilling industry, and comprise the following steps: the underground system comprises a ground instruction mechanism, a control mechanism, an underground system, a response module and a feedback module, wherein the ground instruction mechanism is used for sending instructions; the control mechanism is used for controlling the drill rod to transmit the command to the underground system through the change of the state of the drill rod according to the command of the ground command mechanism; the underground system is used for detecting the change of the drill rod state, receiving the instruction and sending the instruction to the response module; the response module is used for carrying out response operation according to the instruction; and the feedback module is used for feeding back the response result to the ground instruction mechanism. The ground-oriented underground communication method and system provided by the invention have the advantages that the drill rod is controlled to transmit instructions to an underground system through the change of the state of the drill rod; has the advantages of simplicity, reliability, safety, no space occupation, few fault points, economy and the like.
Description
Technical Field
The invention relates to the technical field of drilling industry, in particular to a ground-oriented underground communication method and system.
Background
In the prior art, during drilling operations, the surface is required to communicate with a downhole system. After the underground system receives the information, the information and the execution condition received by the underground system are fed back to the ground in a mode of changing the mud pressure by a mud pulser or an electromagnetic wave mode and the like.
The current way in which the surface communicates with downhole systems is: communicating with a downhole system by varying mud displacement. Specifically, the size of the mud displacement is controlled by surface equipment for coding, and the downhole system detects the change of the mud displacement and decodes the change to respond. The disadvantage of this communication is that the rig floor requires a diverter to control the mud displacement variation code. Requires installation and is cumbersome to operate, has poor reliability, takes up space, is unsafe, has many points of failure and is uneconomical.
Disclosure of Invention
According to the ground-oriented underground communication method and system, the drill rod is controlled to transmit the command to the underground system through the change of the state of the drill rod, and the technical problem is solved.
The invention provides a ground-oriented downhole communication system, which comprises: the system comprises a ground instruction mechanism, a control mechanism, a downhole system, a response module and a feedback module;
the ground instruction mechanism is used for sending instructions;
the control mechanism is used for controlling the drill rod to transmit instructions to the underground system through the change of the state of the drill rod according to the instructions of the ground instruction mechanism;
the underground system is used for detecting the change of the drill rod state, receiving the instruction and sending the instruction to the response module;
the response module is used for performing response operation according to the instruction;
and the feedback module is used for feeding back a response result to the ground instruction mechanism.
Optionally, the ground instruction mechanism is specifically configured to compile an instruction according to a preset protocol and send the instruction;
the underground system is specifically used for detecting the change of the drill rod state, receiving the instruction, decoding the received instruction according to a preset protocol, and sending the decoded instruction to the response module.
Optionally, the control mechanism is specifically configured to transmit the command to the downhole system by controlling one or more of a rotation speed, a rotation direction, an instantaneous rotation speed, an average rotation speed, a number of rotations per unit time, a total number of rotations, a lifting and lowering of the drill rod, and a vibration of the drill rod according to the command of the surface command mechanism.
Optionally, the downhole system comprises: one or more of a guided system drilling system, a measurement while drilling system, a logging while drilling system, and a drifting measurement.
The invention also provides a ground-oriented downhole communication method, which comprises the following steps:
the ground instruction mechanism sends an instruction to the control mechanism;
the control mechanism controls the drill rod to transmit instructions to the underground system through the change of the state of the drill rod according to the instructions of the ground instruction mechanism;
the underground system detects the change of the drill rod state, receives the instruction and sends the instruction to the response module;
the response module is used for carrying out response operation according to the instruction;
and the feedback module feeds the response result back to the ground instruction mechanism.
The invention has the beneficial effects that: the ground-oriented underground communication method and system provided by the invention have the advantages that a drill rod is controlled to transmit an instruction to the underground system through the change of the state of the drill rod; has the advantages of simplicity, reliability, safety, no space occupation, few fault points, economy and the like.
Drawings
FIG. 1 is a block diagram of a ground-oriented downhole communication system according to an embodiment of the present invention;
FIG. 2 is a flow chart of a method for surface-oriented downhole communication according to an embodiment of the present invention.
Detailed Description
The technical solutions in the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
The present embodiment provides a ground-oriented downhole communication system, as shown in fig. 1, including: the system comprises a ground instruction mechanism 1, a control mechanism 2, a downhole system 3, a response module 4 and a feedback module 5;
the ground instruction mechanism 1 is used for sending instructions;
the ground instruction mechanism 1 is specifically used for compiling instructions according to a preset protocol and sending the instructions;
in this embodiment, the ground command mechanism 1 commands the control mechanism 2 to change the state of the drill rod when the underground communication is needed, so as to realize encoding. The ground command mechanism 1 may be, but is not limited to, an operator, a computer, a remote control device.
In this embodiment, the drill rod status includes, but is not limited to, the rotational speed, the rotational direction, the instantaneous rotational speed, the average rotational speed, the number of revolutions per unit time, the total number of revolutions, the raising and lowering of the drill rod, and the vibration of the drill rod.
For example: the surface command mechanism 1 sets the rotation speed R1 of the drill rod to 20 rpm. The rotation speed of the drill rod R2 is 40 rpm.
And R1 is set to binary 0 and R2 is set to binary 1.
The transmission command format is: spare bit/start bit/data bit/check bit
Setting an idle position: the idle bit is an interval between two statements, the number of bits is uncertain, and the idle bit may be any bit data other than the start bit data.
Setting a start position: 000000000 is used to represent the start bit.
Setting a data bit: the data bits are 12-bit binary codes. The content of the data bits is the surface-to-downhole transmitted data. The length of the data depends on different situations. Here, a 12-bit binary code is provided to facilitate the description of this patent. And are not intended as limitations on the disclosure of this patent.
Setting a check bit: 111 as check bits. It is checked whether the data is correct. Other contents may be set as a check without a check. Setting 111 as a check here is convenient for the description of this patent. And are not intended as limitations on the disclosure of this patent.
For example: the content to be transmitted to the downhole system 3 is 2325
The conversion to binary code is 010011010101.
The free bit is set to 01, and at this time, an instruction 01/000000000/010011010101/111 is obtained according to the instruction format and sent to the control mechanism 2
The control mechanism 2 is used for controlling the drill rod to transmit instructions to the downhole system 3 through the change of the state of the drill rod according to the instructions of the ground instruction mechanism 1;
and the control mechanism 2 is specifically used for transmitting the instruction to the downhole system 3 by controlling the change of one or more states of the rotating speed, the rotating direction, the instantaneous rotating speed, the average rotating speed, the rotating circles in unit time, the total rotating circles, the lifting and the lowering of the drill rod and the vibration of the drill rod according to the instruction of the ground instruction mechanism 1.
For example: 01/000000000/010011010101/111 received by the control mechanism 2
After the instruction, the control mechanism 2 controls the rotation speed of the drill rod according to the instruction.
In each case at 20rpm/40 rpm/(here denotes the idle bit)
20rpm/20rpm/20rpm/20rpm/20rpm/20rpm/20rpm/20 rpm/(which means start bit) 20rpm/40rpm/20rpm/20rpm/40rpm/40rpm (which means data bit) 40rpm/40rpm/40rpm (which means check bit) in this order.
In this embodiment, the control mechanism 2 is a mechanism for controlling the drill rod to change state according to the instruction sent by the ground instruction mechanism 1. The control mechanism 2 includes, but is not limited to, a top drive, a turntable.
The downhole system 3 is used for detecting the change of the drill rod state, receiving the instruction and sending the instruction to the response module 4;
the downhole system 3 is specifically configured to detect a change in the state of the drill pipe, receive an instruction, decode the received instruction according to a preset protocol, and send the decoded instruction to the response module 4.
For example: the drill pipe states received by the downhole system 3 are the arrangement of the drill pipe rotation speed changes: 20rpm/40rpm/20rpm/20rpm/20rpm/20rpm/20rpm/20rpm/20rpm/20rpm/20rpm/20rpm/40rpm/20rpm/20rpm/40rpm/40rpm/20 rpm/20rpm/20rpm/40rpm
The underground system 3 decodes according to the protocol to obtain the information sent by the ground command mechanism 1: 01000000000010011010101111. according to a preset protocol, a free bit 01 and a start bit 000000000 and a data bit 010011010101 and a check bit 111 are read. Then decoding is performed to obtain transmitted data content 010011010101. after data conversion, information 2325 is obtained, and 2325 is sent to response module 4.
The downhole system 3 refers to a set of systems connected to a drill pipe to perform a specific function. May be a tool class, may be a measurement class, may be a test class, and so on. Such as steerable drilling systems, measurement while drilling systems (MWD), logging while drilling systems (LWD), and wireline measurements (LWT).
The downhole system 3 has the ability to communicate with the surface. The downhole system 3 has the ability to feed back to the surface.
The downhole system 3 of this patent is a broad description to better aid in understanding the objects established by the present embodiment.
The response module 4 is used for performing response operation according to the instruction;
the response module 4 is a module which responds after the downhole system 3 receives the surface information.
The response by the response module 4 may be an action of the mechanism, may be a switch of the instrument, may be a response of the instrument, or may be a non-action of the device.
The response module 4 is for example a rib in a rotary steerable tool. According to the ground information, the ribbed plate makes corresponding action, and the ribbed plate at the moment is the response module 4. The response module 4 includes, but is not limited to, a rib plate in rotary steerable operation. The rib is merely one model useful in describing the present embodiment.
And the feedback module 5 is used for feeding back the response result to the ground instruction mechanism 1.
The feedback module 5 is the surface command mechanism 1 which feeds back the condition of the downhole system 3 receiving the surface information and the response result of the downhole system 3 to the surface.
The embodiment also provides a ground-oriented downhole communication method, which is suitable for comprising the following steps: a system of a surface command mechanism, a control mechanism, a downhole system, a response module and a feedback module, as shown in fig. 2, the method comprising:
a1, the ground instruction mechanism sends an instruction to the control mechanism;
step A2, the control mechanism controls the drill rod to transmit the command to the underground system through the change of the state of the drill rod according to the command of the ground command mechanism;
a3, the underground system detects the change of the drill rod state and receives the instruction, and sends the instruction to the response module;
a4, a response module, which performs response operation according to the instruction;
and step A5, a feedback module feeds the response result back to the ground command mechanism.
According to the method and the system for ground-oriented underground communication, the ground command mechanism encodes different states of the drill rod, sends commands, the control mechanism controls the state of the drill rod, the underground system receives the commands and decodes the state of the drill rod through detecting the drilling state, the response module responds, and the feedback module feeds back the condition that the underground system receives ground information and the response result of the response module to the ground so as to realize ground-oriented underground communication. The invention has the advantages of simplicity, reliability, safety, no space occupation, few fault points, economy and the like.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. A ground-oriented downhole communication system, comprising: the system comprises a ground instruction mechanism, a control mechanism, a downhole system, a response module and a feedback module;
the ground instruction mechanism is used for sending instructions;
the control mechanism is used for controlling the drill rod to transmit instructions to the underground system through the change of the state of the drill rod according to the instructions of the ground instruction mechanism;
the underground system is used for detecting the change of the drill rod state, receiving the instruction and sending the instruction to the response module;
the response module is used for performing response operation according to the instruction;
and the feedback module is used for feeding back a response result to the ground instruction mechanism.
2. The system according to claim 1, wherein the ground command mechanism is specifically configured to write commands according to a preset protocol and send the commands;
the underground system is specifically used for detecting the change of the drill rod state, receiving the instruction, decoding the received instruction according to a preset protocol, and sending the decoded instruction to the response module.
3. The system of claim 1, wherein the control mechanism is configured to transmit the command to the downhole system by controlling one or more of a rotational speed, a rotational direction, an instantaneous rotational speed, an average rotational speed, a number of revolutions per unit time, a total number of revolutions, a raising and lowering of the drill pipe, and a vibration of the drill pipe according to the command from the surface command mechanism.
4. The system of claim 1, wherein the downhole system comprises: one or more of a guided system drilling system, a measurement while drilling system, a logging while drilling system, and a drifting measurement.
5. A method of ground-oriented downhole communication, adapted for use in a system according to any of claims 1-4, the method comprising:
the ground instruction mechanism sends an instruction to the control mechanism;
the control mechanism controls the drill rod to transmit instructions to the underground system through the change of the state of the drill rod according to the instructions of the ground instruction mechanism;
the underground system detects the change of the drill rod state, receives the instruction and sends the instruction to the response module;
the response module is used for carrying out response operation according to the instruction;
and the feedback module feeds the response result back to the ground instruction mechanism.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210068088.5A CN114412453A (en) | 2022-01-20 | 2022-01-20 | Ground-oriented underground communication method and system |
| PCT/CN2022/074743 WO2023137795A1 (en) | 2022-01-20 | 2022-01-28 | Ground-to-downhole communication method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210068088.5A CN114412453A (en) | 2022-01-20 | 2022-01-20 | Ground-oriented underground communication method and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114412453A true CN114412453A (en) | 2022-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210068088.5A Pending CN114412453A (en) | 2022-01-20 | 2022-01-20 | Ground-oriented underground communication method and system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114412453A (en) |
| WO (1) | WO2023137795A1 (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7222681B2 (en) * | 2005-02-18 | 2007-05-29 | Pathfinder Energy Services, Inc. | Programming method for controlling a downhole steering tool |
| US7540337B2 (en) * | 2006-07-03 | 2009-06-02 | Mcloughlin Stephen John | Adaptive apparatus, system and method for communicating with a downhole device |
| CN108468531A (en) * | 2018-03-16 | 2018-08-31 | 江苏航天鸿鹏数控机械有限公司 | Pass through the underground back-pressure valve and control method of drilling rod speed Control |
| CN108386153A (en) * | 2018-03-16 | 2018-08-10 | 江苏航天鸿鹏数控机械有限公司 | Pass through the extension hanger and its control method of the rotation control of ground drilling rod |
| CN113062729A (en) * | 2021-03-30 | 2021-07-02 | 中原工学院 | Underground mining while-drilling data wireless transmission method |
| CN113417631B (en) * | 2021-08-11 | 2023-05-02 | 中国石油大学(华东) | Rotary guiding tool ground instruction downloading system and method |
-
2022
- 2022-01-20 CN CN202210068088.5A patent/CN114412453A/en active Pending
- 2022-01-28 WO PCT/CN2022/074743 patent/WO2023137795A1/en unknown
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| Publication number | Publication date |
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| WO2023137795A1 (en) | 2023-07-27 |
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