CN107130957A - A kind of Oil/gas Well downhole monitoring system and the confession method for electrically for the monitoring system - Google Patents
A kind of Oil/gas Well downhole monitoring system and the confession method for electrically for the monitoring system Download PDFInfo
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- CN107130957A CN107130957A CN201610108000.2A CN201610108000A CN107130957A CN 107130957 A CN107130957 A CN 107130957A CN 201610108000 A CN201610108000 A CN 201610108000A CN 107130957 A CN107130957 A CN 107130957A
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- energy
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- detection node
- powered module
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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
Abstract
A kind of confession method for electrically the invention discloses Oil/gas Well downhole monitoring system and for the monitoring system, the system includes, floor treatment subsystem, underground monitoring subsystem, it is arranged as the sensor network with multiple detection nodes, for down-hole information data collection and by obtained information data transmission return floor treatment subsystem, wherein, self-powered module is provided with each detection node, the self-powered module is used to gather the energy in subsurface environment and will obtain energy to be converted to electric energy to implement to power for each detection node.The system can allow sensor to realize self-powered in underground, expand subsurface environment monitoring range, realize full borehole data monitoring, extension subsurface environment monitors effective time, realizes that full working scope is monitored in real time, effectively copes with underground complex environment, operation continuation, security are improved, operating cost is saved.
Description
Technical field
The present invention relates to Oil/gas Well underground monitoring field, more particularly to a kind of Oil/gas Well downhole monitoring system and it is used for
The confession method for electrically of the monitoring system.
Background technology
As the appearance of the development of electronic information technology, particularly network technology to the information age brings change
Leather.At present, network technology develops into wireless network from cable network.In the wireless network, the energy of node
Source supply problem is always the hot fields of research, especially is difficult to realize in bad environments and conventional electron mode
Situation, such as be drilled in petroleum works under the complicated construction environment of well, each probe power of underground supplied
Continuation and security propose higher requirement.
Recently as the continuous progress of ICT (Information Communication Technology) technology,
And various low-power consumption sensors is booming, by the various work(such as data acquisition, information processing and radio communication
It can be integrated on the sensor of micro volume and be possibly realized.Fig. 1 is based on wireless senser to be a kind of in the prior art
The Oil/gas Well downhole monitoring system composition schematic diagram of network, as illustrated, existing monitoring system is general by ground face
System is constituted with underground subsystem two parts, and underground subsystem mainly possesses monitoring function, by the way that sensor is consolidated
It is scheduled on sleeve pipe, drilling rod or various downhole tools, and multiple sensors is laid out in sensing network in underground, it is right
Subsurface environment monitors through row and is laid out in transmission network.Ground subsystem should typically possess to be read to sensing data
Function, mainly includes ground-based server processing unit, sleeve pipe or drilling rod sleeve pipe retracting device.Wherein, sensor
Network is made up of multiple wireless sensor nodes of small size, low-power consumption, low cost, and these nodes are generally by low
Wireless communication module, sensor and the microprocessor module and other composition of power consumption, it is each independent to be in communication with each other connection again
Form wireless sensor network.
Downhole sensor of the prior art needs external power supply or internal battery to be powered, and seriously limits
The scope of subsurface environment monitoring and the effective time of sensor, while lithium battery used, cable etc. are excessively accounted for
With space limited in pit shaft, significantly reduce the flexibility of underground equipment design, add underground equipment system
The difficulty made, meanwhile, the security of lithium battery, reliability of cable etc. are both needed to further raising.
To sum up, a kind of new Oil/gas Well downhole monitoring system of arrangement is needed badly to solve the above problems.
The content of the invention
One of technical problems to be solved by the invention are to need to provide a kind of new Oil/gas Well downhole monitoring system
To solve the underground power supply used problem of the existing Oil/gas Well downhole monitoring system based on wireless sensor network.
In order to solve the above-mentioned technical problem, embodiments herein provide firstly a kind of Oil/gas Well underground monitoring system
System, including floor treatment subsystem；Underground monitoring subsystem, is arranged as the sensor with multiple detection nodes
Network, for down-hole information data collection and by obtained information data transmission return floor treatment subsystem, its
In, self-powered module is provided with each detection node, the self-powered module is used to gather subsurface environment
In energy and will obtain energy be converted to electric energy come for each detection node implement power.
Preferably, communication module is additionally provided with each detection node, the communication module passes through MANET side
Formula makes each detection node be communicated to connect with least two other detection nodes.
Preferably, self-powered module is arranged on sleeve pipe or drilling rod.
Preferably, self-powered module includes GaAs thermoelectric converting unit, for collecting the temperature difference shape inside and outside sleeve pipe
Into thermal gradient energy, and the thermal gradient energy is converted into electric energy.
Preferably, self-powered module includes cantilever beam vibrational energy converting unit, is produced for collecting drilling rod vibration
Mechanical energy, and the mechanical energy is converted into electric energy.
Preferably, self-powered module includes EMR electromagnetic resonance converting unit, for collecting the electromagnetic wave in subsurface environment
Can, and the electromagnetism wave energy is converted into electric energy.
Preferably, self-powered module also includes energy buffer unit, for by the power storage being converted to, steady
Pressure and output.
Preferably, self-powered module also includes energy management unit, and whether the supply voltage produced by for judging
The supply voltage needed for detection node can be reached.
Embodiments herein additionally provides a kind of confession method for electrically for Oil/gas Well downhole monitoring system, including
Information data under sensor network production wells with multiple detection nodes, and obtained information data transmission is returned
Floor treatment subsystem, the energy being arranged in the self-powered module of each detection node collection subsurface environment simultaneously will
Obtaining energy is converted to electric energy to implement to power for each detection node, wherein, when produced supply voltage is less than
During the threshold voltage of setting, the detection node is set to exit the sensor network；When having dropped out sensor network
Detection node at the supply voltage that is produced when being more than or equal to the threshold voltage of setting, make the detection node weight
Newly access the sensor network.
Preferably, it is other with MANET mode and at least two that the detection node of the sensor network is accessed again
Detection node set up communication connection.
Compared with prior art, one or more of such scheme embodiment can have the following advantages that or beneficial
Effect：
By gather the energy in subsurface environment and will obtain energy be converted to electric energy come for each detection node implement
Power supply, can allow sensor to realize self-powered in underground, expand subsurface environment monitoring range, realize full pit shaft number
According to monitoring, extension subsurface environment monitors effective time, realizes that full working scope is monitored in real time, while farthest reducing
Influence of the battery to sensor, fundamentally removes the activity duration extension caused by changing battery etc., effectively
Underground complex environment is tackled, operation continuation, security is improved, operating cost is saved.
Other advantages, the target of the present invention, and feature will be explained in the following description to a certain extent
State, and to a certain extent, based on will be to those skilled in the art to investigating hereafter it is aobvious and
It is clear to, or can be instructed from the practice of the present invention.The target and other advantages of the present invention can lead to
Structure specifically noted in following specification, claims, and accompanying drawing is crossed to realize and obtain.
Brief description of the drawings
Accompanying drawing is used for providing to the technical scheme of the application or further understanding for prior art, and constitutes
A part for bright book.Wherein, the accompanying drawing of expression the embodiment of the present application is used to solve together with embodiments herein
The technical scheme of the application is released, but does not constitute the limitation to technical scheme.
Fig. 1 illustrates for the composition of the Oil/gas Well downhole monitoring system based on wireless sensor network of prior art
Figure；
Fig. 2 is the structural representation of the Oil/gas Well downhole monitoring system of the embodiment of the present invention；
Fig. 3 shows for the flow of the confession method for electrically for Oil/gas Well downhole monitoring system of another embodiment of the present invention
It is intended to.
Embodiment
Describe embodiments of the present invention in detail below with reference to drawings and Examples, whereby to the present invention how
Application technology means solve technical problem, and reach the implementation process of relevant art effect and can fully understand and evidence
To implement.Each feature in the embodiment of the present application and embodiment, can mutually be tied under the premise of not colliding
Close, the technical scheme formed is within protection scope of the present invention.
Require that high, security requirement is high for petroleum works downhole sensor battery durable, and exist electricity shortage,
The situation of the problems such as power supply instability, the present invention proposes that one kind being capable of self-powered subsurface environment monitoring system, use
In the monitoring of downhole data, illustrated with reference to Fig. 2.
As shown in Fig. 2 the embodiment of the present invention can self-powered subsurface environment monitoring system it is same by ground face
System and underground subsystem composition.Wherein ground subsystem is same as the prior art, mainly includes sensor ground
Message processing module and sleeve pipe or drilling rod recycling module, the data for being gathered to sensor are read out and located
Reason.Underground subsystem is the underground monitoring subsystem for possessing monitoring function, is arranged as with multiple detection nodes
Sensor network, for down-hole information data collection and by obtained information data transmission return floor treatment subsystem
System.As illustrated, sensors A, sensor B etc. are wireless senser, sensor can be realized to underground
The collection of the much information data such as position, temperature, pressure, inclination angle.The arrangement of sensor can be according to measurement
Number and layout density are installed in demand, adjustment, so as to be formed, coverage is adjustable, the adjustable intellectual monitoring of density
Network.
Communication module is provided with each detection node, each communication module makes each inspection by MANET mode
Survey node and at least two other detection nodes are communicated to connect, sensor can measure subsurface environment information in real time
Data, and data are transmitted each other.Sensor is typically mounted on sleeve pipe or drilling rod, therefore can be by inciting somebody to action
Recovery of casing and drilling rod are promoted to ground and obtain sensing data later.It can be handled on sensor with integrated information
Unit and signal transceiver, the information that measurement is obtained are stored therein in, and the information of storage passes through signal transceiver
Be converted to the data-signal of wireless network transmissions form, then the sensor network formed by each sensor is successively
Ground is delivered to, terrestrial information processing module is handled data.
As shown in Fig. 2 the underground monitoring subsystem of the embodiment of the present invention, is provided with each detection node
Self-powered module, self-powered module coordinates each sensor, on sleeve pipe or drilling rod.The self-powered module
The energy in subsurface environment, which can be gathered, and energy will be obtained is converted to electric energy to implement to power for each detection node.
Self-powered is by some form of energy present in environment, such as light, heat, machinery, electromagnetism, fluid conversion
It is that monitoring system implements power supply for electric energy.The energy of any form is gathered in practice and converts thereof into electric energy,
Then depend on the environment residing for sensor., can be by gathering heat energy, machinery in the subsurface environment of Oil/gas Well
Energy, electromagnetic energy etc. realize the temperature difference, vibrating power-generation, electromagnetic wave generating etc., are directly powered for underground monitoring sensor.
Further as shown in Fig. 2 each self-powered module can include one or more electric converting units, according to
Different drilling depths and the installation position of monitoring sensor, adjust the confession Denso in each detection node
Put.Specifically, for the larger drilling environment of the well depths such as deep-well, ultradeep well, due to being generated heat caused by probing
Serious well section, can be correspondingly arranged GaAs thermoelectric converting unit, be formed for collecting the temperature difference inside and outside sleeve pipe
Thermal gradient energy, and the thermal gradient energy being collected into is converted into electric energy.For close to the position of drill bit, because its machinery shakes
It is dynamic larger, cantilever beam vibrational energy converting unit can be correspondingly arranged, for collecting the mechanical energy that drilling rod vibration is produced,
And the mechanical energy being collected into is converted into electric energy.For close to the position of measurement pipe nipple, because its electromagnetic radiation is stronger,
EMR electromagnetic resonance converting unit can be correspondingly arranged, for collecting the electromagnetism wave energy in subsurface environment, and will be collected into
Electromagnetism wave energy be converted to electric energy.Each electric converting unit in Fig. 2 in each detection node can be according to underground
Actual conditions optimize setting.
Self-powered module also includes energy buffer unit, for by the power storage being converted to, voltage stabilizing and defeated
Go out.Energy buffer unit is first stored the electric energy obtained via electric converting unit using storage capacitor, is
There is provided stable power supply for other devices in detection node also needs mu balanced circuit and output buffer, on
State content and belong to the state of the art, repeat no more.
Self-powered module also includes energy management unit, and whether the supply voltage produced by for judging can reach
Supply voltage needed for detection node.Self-powered module is to implement power supply by gathering the energy in subsurface environment
, and subsurface environment is in being continually changing.When the energy collected is more, foot can be obtained by changing
Enough electric energy are powered, and electric energy is stored by storage capacitor.When the energy collected is less,
Such as temperature difference is not high, or brill vibration of bar is not violent, possibly can not obtain enough electric energy and be powered, now pass
Sensor may can not work due to being unable to normal power supply or can not transmit correct information data.To ensure well
The reliability of lower monitoring system is, it is necessary to which the power reguirements that whether disclosure satisfy that monitoring node to self-powered voltage enter
Row judges, the detection node of normal power supply is unable to timely exclusion.
In an embodiment of the present invention, comparison circuit is provided with energy management unit, by setting threshold value electricity
Pressure, to judge whether confession piezoelectric voltage meets needs.Specifically, constantly detecting output buffer output end
On voltage, and be compared with the threshold voltage of setting, when threshold value of the produced supply voltage less than setting
During voltage, illustrate that self-powered module can not now provide the supply voltage needed for the detection node, then save detection
Point exits sensor network.The supply voltage produced at the detection node for having dropped out sensor network be more than etc.
When the threshold voltage of setting, illustrate that self-powered module can now provide the power supply electricity needed for the detection node
Pressure, then can make the detection node access sensor network again.
Further, due to each detection node in the embodiment of the present invention and at least two other detection nodes
Communication connection, therefore, when some detection node exits sensor network, be connected with the detection node its
He communicates to connect detection node due to also being examined with least another detection, therefore can not be exited sensor by this
The influence of the detection node of network, to ensure the reliability of sensor network.When having logged out sensor network
The power supply of detection node is met require after, can access sensor network again in MANET mode, and with least
Two other detection nodes set up communication connection.
The Oil/gas Well downhole monitoring system of the embodiment of the present invention does not need cable/battery to power, by environmental energy
Self-powered is implemented in collection, and system altitude is integrated, can effectively reduce device volume, be easy to underground to lay.
Another embodiment of the present invention additionally provides a kind of confession method for electrically for Oil/gas Well downhole monitoring system,
Fig. 3 is the schematic flow sheet of the confession method for electrically, as illustrated, comprising the following steps：
Information data under step S310, the sensor network production wells with multiple detection nodes, and will obtain
Information data transmission returns floor treatment subsystem.
Step S320, the energy being arranged in the self-powered module of each detection node collection subsurface environment are simultaneously incited somebody to action
Electric energy is converted to implement to power for each detection node to energy.
Step S3201, when produced supply voltage less than setting threshold voltage when, make the detection node
Exit the sensor network；
Step S3202, the supply voltage produced at the detection node for having dropped out sensor network are more than or equal to
During the threshold voltage of setting, the detection node is set to access the sensor network again.
Wherein, step S310 and step S320 is carried out simultaneously.
The embodiment of the present invention can allow sensor to realize self-powered in underground, expand subsurface environment monitoring range, reality
Now full borehole data monitoring, extension subsurface environment monitors effective time, realizes that full working scope is monitored in real time, while maximum
Influence of the reduction battery of degree to sensor, fundamentally removing the activity duration caused by changing battery etc. prolongs
It is long, underground complex environment is effectively coped with, operation continuation, security is improved, operating cost is saved.The dress
Put and method is applicable to be drilled well operations.
Although disclosed herein embodiment as above, described content is only to facilitate understand the present invention
And the embodiment used, it is not limited to the present invention.Technology people in any the technical field of the invention
Member, do not depart from disclosed herein spirit and scope on the premise of, can implementation formal and details
On make any modification and change, but the scope of patent protection of the present invention still must be with appended claims institute
The scope defined is defined.
Claims (10)
1. a kind of Oil/gas Well downhole monitoring system, including：
Floor treatment subsystem；
Underground monitoring subsystem, is arranged as the sensor network with multiple detection nodes, for down-hole information number
According to collection and by obtained information data transmission return floor treatment subsystem, wherein,
Self-powered module is provided with each detection node, the self-powered module is used to gather subsurface environment
In energy and will obtain energy be converted to electric energy come for each detection node implement power.
2. system according to claim 1, it is characterised in that be additionally provided with each detection node
Communication module, the communication module makes each detection node and at least two other detections by MANET mode
Node is communicated to connect.
3. system according to claim 1 or 2, it is characterised in that the self-powered module is arranged on
On sleeve pipe or drilling rod.
4. system according to claim 3, it is characterised in that the self-powered module includes GaAs
Thermoelectric converting unit, for collecting the thermal gradient energy of the temperature difference formation inside and outside sleeve pipe, and the thermal gradient energy is converted to
Electric energy.
5. system according to claim 3, it is characterised in that the self-powered module includes cantilever beam
Vibrational energy converting unit, for collecting the mechanical energy that drilling rod vibration is produced, and is converted to electric energy by the mechanical energy.
6. system according to claim 3, it is characterised in that it is humorous that the self-powered module includes electromagnetism
Shake converting unit, electric energy is converted to for collecting the electromagnetism wave energy in subsurface environment, and by the electromagnetism wave energy.
7. the system according to any one of claim 4 to 6, it is characterised in that the self-powered mould
Block also includes energy buffer unit, for by the power storage being converted to, voltage stabilizing and output.
8. system according to claim 7, it is characterised in that the self-powered module also includes energy
Whether administrative unit, the supply voltage produced by for judging can reach the supply voltage needed for detection node.
9. a kind of be used for the confession of the Oil/gas Well downhole monitoring system as any one of claim 2 to 8
Method for electrically, it is characterised in that including：
Information data under sensor network production wells with multiple detection nodes, and obtained information data is passed
Defeated time floor treatment subsystem, is arranged at the energy in the self-powered module of each detection node collection subsurface environment
And will obtain energy be converted to electric energy come for each detection node implement power, wherein,
When threshold voltage of the produced supply voltage less than setting, exit the detection node described
Sensor network；
The supply voltage produced at the detection node for having dropped out sensor network is more than or equal to setting
During threshold voltage, the detection node is set to access the sensor network again.
10. method according to claim 9, it is characterised in that access the sensor network again
Detection node is set up with least two other detection nodes in MANET mode and communicated to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610108000.2A CN107130957A (en) | 2016-02-26 | 2016-02-26 | A kind of Oil/gas Well downhole monitoring system and the confession method for electrically for the monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610108000.2A CN107130957A (en) | 2016-02-26 | 2016-02-26 | A kind of Oil/gas Well downhole monitoring system and the confession method for electrically for the monitoring system |
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| CN201610108000.2A Pending CN107130957A (en) | 2016-02-26 | 2016-02-26 | A kind of Oil/gas Well downhole monitoring system and the confession method for electrically for the monitoring system |
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Cited By (4)
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| CN109391916A (en) * | 2018-08-24 | 2019-02-26 | 中国科学院上海微系统与信息技术研究所 | A kind of Internet of Things Intellisense terminal |
| CN110221022A (en) * | 2018-03-02 | 2019-09-10 | 光力科技股份有限公司 | A kind of gas concentration measuring method and system of underground goaf |
| CN114142947A (en) * | 2021-11-16 | 2022-03-04 | 中国农业大学 | Self-powered underground information detection and transmission system and method based on acoustic communication |
| CN115002162A (en) * | 2022-06-10 | 2022-09-02 | 联泰集群（北京）科技有限责任公司 | Oil-gas communication system based on self-powered technology and machine learning |
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| CN110221022A (en) * | 2018-03-02 | 2019-09-10 | 光力科技股份有限公司 | A kind of gas concentration measuring method and system of underground goaf |
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| CN115002162A (en) * | 2022-06-10 | 2022-09-02 | 联泰集群（北京）科技有限责任公司 | Oil-gas communication system based on self-powered technology and machine learning |
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Application publication date: 20170905 |