CN201671620U - Down-hole monitoring device - Google Patents
Down-hole monitoring device Download PDFInfo
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- CN201671620U CN201671620U CN2010202188633U CN201020218863U CN201671620U CN 201671620 U CN201671620 U CN 201671620U CN 2010202188633 U CN2010202188633 U CN 2010202188633U CN 201020218863 U CN201020218863 U CN 201020218863U CN 201671620 U CN201671620 U CN 201671620U
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Abstract
The utility model relates to corrosion monitoring technology in oil and gas field, and in particular to a down-hole monitoring device. The utility model herein comprises a sample module for providing test sample, a test module for measuring down-hole parameters of the test samples and obtaining measured data, a storage module for saving the measured data, a communication module for transmitting the measured data to the ground work station through a communication interface which is connected to the communication module, a power supply module for providing power supply required by other modules. The utility model can realize data real-time communication while recording historical data, and permit measuring staff's remote monitoring of the measuring process.
Description
Technical field
The utility model relates to oil, gas field corrosion monitoring technical field, more particularly, relates to a kind of underground monitoring device.
Background technology
In a single day in process of oil production, oil, gas field subsurface environment have not only improved cost of production to the corrosion of equipment, and have an accident, also can cause stop work and production, environment pollution, bring enormous economic loss, even cause personnel's injures and deaths.
By the corrosion monitoring Study on Technology, can grasp the corrosion generating process, understand the applicable cases and the effect of corrosion control.By corrosion monitoring, can obtain connecting each other etc. for information about between corrosion process and the operating parameter, etching problem is assessed; improve the corrosion control scheme, play the effect of " preventing trouble before it happens ", thereby reduce economic loss; economize on resources the protection environment.But owing to the high temperature of oil gas field down-hole, the environment of high pressure, for many years, the accurate data that how to obtain the downhole corrosion situation are technical barriers always.
In actual production, corrosion monitoring technology commonly used mainly contains: hanging slice method (being the test specimen weight-loss method), hydrogen probe, Linear Polarization Resistance, inductive impedance method, electric-resistivity method at present.Wherein, described electric-resistivity method is comparatively advanced, reliable a kind of corrosion monitoring technology, its principle is: the resistance with sensor of fixed mass and shape, cross-sectional area changes with corrosion, resistance readings will change thereupon, this variable quantity is compared with the resistance of a uncorroded sensor element, and when the two resistance readings was expressed as a ratio, the variation of corrosion rate was just represented in the variation of ratio.
The advantage of this technology is: to the measurement environment no requirement (NR), but can be widely used in system and the log history data that any generation is corroded.But also there is following shortcoming in this technology in present enforcement: adopted and the hanging slice method formula measuring method of similarly letting go, promptly equipment works alone in the down-hole, and measuring process can not be monitored in real time, and it is longer to obtain data time.
The utility model content
The utility model provides a kind of underground monitoring device at the above-mentioned problems in the prior art, realizes the real-time Communication for Power of data in the log history data, makes survey crew carry out remote monitoring to measuring process.
For this reason, the utility model provides following technical scheme:
A kind of underground monitoring device comprises:
The sample module is used to provide specimen;
Measurement module is used to measure the parameter of described specimen in the down-hole, obtains survey data;
Memory module is used to store described survey data;
Communication module is used for described survey data is sent to the ground handling station by the communication interface that links to each other with described communication module;
The power supply that provides other each modules required is provided power module.
Preferably, described sample module comprises: two groups of same test samples, every group of specimen comprises an actual sample and an auxiliary sample that does not contact with the downhole corrosion environment that is exposed in the downhole corrosion environment.
Preferably, described two groups of specimen are installed on the identical carrier, and described carrier is outside equipped with protective cover, and the bottom of described protective cover is provided with pod apertures, so that described actual sample fully contacts with the downhole corrosion environment.
Preferably, described device also comprises:
Pressure sensor is arranged in the described protective cover, is used to measure the pressure of described specimen in the down-hole, obtains pressure measurement data;
Temperature pick up is fixed in the same pressure-bearing pipe with described measurement module, is used to measure the temperature of described specimen in the down-hole, obtains temperature measuring data;
Described measurement module, the measurement that also is used to control described pressure sensor and described temperature pick up at interval.
Preferably; described measurement module, memory module, communication module, power module are fixed on one independently in the pressure-bearing pipe by fixture respectively separately; each pressure-bearing pipe joins successively by the insulated enclosure connector; and the pressure-bearing pipe that is fixed with measurement module joins by insulated enclosure connector and described protective cover, and each module is electrically connected by lead.
Preferably, described insulated enclosure connector is the internal and external threads that is arranged on each pressure-bearing pipe and described protective cover joint joint.
Preferably, described device also comprises: fixed part is used for described underground monitoring device is connected to the installation site, down-hole.
Preferably, described fixed part is the jig joint, and described jig joint periphery is with high-temperature resistant seal ring.
Preferably, described jig joint bottom is provided with spring, is used to clamp being connected of described power module and ground.
Preferably, described communication interface is arranged at described fixed part top, and links to each other with described communication module by lead.
Alternatively, described power module is: battery pack or ac-dc converter circuit.
The utility model underground monitoring device, by memory module and communication module, not only can be with the local storage of historical measurement data, but also can realize that data in real time transmits, be about to survey data and be sent to the ground handling station by the communication interface that links to each other with described communication module, survey crew is monitored in real time to whole measuring process and instant data acquisition, thereby can be satisfied different application demands.If desired, can also realize the synchronous networking of a plurality of measurement mechanisms.
Further, utilize many group specimen, protected measuring reliability and accuracy on the one hand, on the other hand, can also increase work efficiency, save and measure cost by the specimen of selecting different materials for use.
Further,, can realize, improve the parameter measurement precision the automatic compensation of specimen in the parameter of down-hole by synchro measure to oil, gas field down-hole pressure and temperature.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model underground monitoring device;
Fig. 2 is a kind of mounting structure schematic diagram of sample mold piece in the utility model underground monitoring device;
Fig. 3 is a kind of mounting structure schematic diagram of measurement module in the utility model underground monitoring device;
Fig. 4 is a kind of mounting structure schematic diagram of power module in the utility model underground monitoring device;
Fig. 5 is a kind of structural representation of insulated enclosure connector in the utility model underground monitoring device;
Fig. 6 is a kind of structural representation of fixed part in the utility model underground monitoring device.
The specific embodiment
In order to make those skilled in the art person understand the scheme of the utility model embodiment better, the utility model embodiment is described in further detail below in conjunction with drawings and embodiments.
As shown in Figure 1, be a kind of structural representation of the utility model underground monitoring device.
In this embodiment, described device 100 comprises:
Such as, the change in resistance of the sample of described metal material to be measured, record also calculates material unaccounted-for (MUF) and reaches purpose to the subsurface environment corrosion monitoring.Can provide effects such as temperature-compensating for measurement structure by measurement, to guarantee the accuracy of survey data to actual sample to auxiliary sample.
The power supply that provides other each modules required is provided power module 105.
In Fig. 1, in order to make diagram clear, and the annexation of not shown described power module 105 and other each modules, but be appreciated that, described power module 105 is in order to give sample module 101, measurement module 102, memory module 103, communication module 104 provides required power supply, can realize by lead or circuit.
In actual applications, the utility model embodiment underground monitoring device can be placed into the precalculated position, down-hole by multiple input mode.After arriving the precalculated position, will measure in this device the record survey data according to the measurement parameter that sets in advance in real time by the specimen that 102 pairs of sample modules 101 of measurement module provide.After measuring end, this device can be salvaged ground, disposable being transferred in the computer of survey data analyzed.In addition, survey data also can be by communication interface 104 ' be sent in real time ground, to realize the real-time monitoring to the downhole corrosion environment.
As seen, the utility model embodiment underground monitoring device, by memory module and the communication module that is provided with, on the one hand with the local storage of historical measurement data, on the other hand survey data is sent to the ground handling station by the communication interface that links to each other with described communication module, survey crew is monitored in real time to whole measuring process and instant data acquisition, thereby can be satisfied different application demands.Further, in actual use, also a plurality of measurement mechanisms can be thrown in simultaneously at the most different position in mouthful oil gas well or the same well, to realize synchronous monitoring, for the subsurface environment assessment provides more detailed, comprehensive data to a plurality of survey marks.
In order further to avoid the influence of systematic error that measurement mechanism structure itself brought to measurement result; as contact resistance; thermo-electromotive force is not (when same material is welded together; with the variation of ambient temperature at electromotive force that contact point produced) etc.; improve measuring reliability and accuracy; in a preferred embodiment of the present utility model; described sample module 101 can comprise: two groups of same test samples; every group of specimen comprises an actual sample and an auxiliary sample that does not contact with the downhole corrosion environment that is exposed in the downhole corrosion environment; particularly; can be with the high temperature resistant diaphragm of described auxiliary sample outer wrapping one deck; such as high-temperature-resistant epoxy resin, thereby make described auxiliary sample and subsurface environment isolated.
The material of described specimen can adopt and the well casing identical materials, to guarantee the uniformity of specimen and real work material.
In this structure, described two groups of specimen i.e. four samples can be formed a bridge structure.Like this,, the processing stage of later data, can fully eliminate the said system error, improve certainty of measurement by measurement, record to a plurality of test points.In addition, another advantage of this structure is: when an actual sample that is exposed to subsurface environment is destroyed in launch process, still can organize effectively carrying out that sample guarantees to measure by another, thereby improve the safety of measuring, improved operating efficiency, and saved and measure cost.
In addition, in practical application of the present utility model, described sample module 101 can also comprise: organize different specimen more, thereby realize the parameter evaluation of multiple material in subsurface environment in one-shot measurement.
The use of the utility model underground monitoring device in subsurface environment for convenience can be installed in identical carrier such as on the insulating slab with described specimen, certainly, if many group specimen are arranged, also can respectively it be installed on the different carriers.Described carrier is outside equipped with protective cover, and the bottom of described protective cover is provided with pod apertures, so that described actual sample fully contacts with the downhole corrosion environment.
As shown in Figure 2, be a kind of mounting structure schematic diagram of sample mold piece in the utility model underground monitoring device.
Wherein, a plurality of specimen 20 are provided with and are installed on the identical carrier 21, and link to each other with other modules by lead 9.Carrier 21 outer setting have protective cover 23, and carrier 21 is fixed on protective cover 23 inside by fixture 22.Fixture 22 is provided with through hole, so that pass lead 9.The bottom of described protective cover 23 is provided with one or more pod apertures 24, so that described actual sample fully contacts with the downhole corrosion environment.As shown in Figure 2, the shape of described protective cover 23 can be a taper, can certainly be other shapes, such as having the cylindric of bottom.Described pod apertures 24 can be distributed in the bottom of described protective cover 23 or all around.
In addition; the use of the utility model underground monitoring device in subsurface environment for convenience; described measurement module 102, memory module 103, communication module 104, power module 105 can also be fixed on one independently in the pressure-bearing pipe by fixture respectively separately, described fixture also can provide anti-vibration protected for its fixing module simultaneously.Each pressure-bearing pipe joins successively by the insulated enclosure connector, and the pressure-bearing pipe that is fixed with measurement module 102 joins by insulated enclosure connector and described protective cover 27, and each module is electrically connected by lead.
Preferably, described insulated enclosure connector can be arranged on the internal and external threads of each pressure-bearing pipe and described protective cover joint joint.Certainly, also can be other connected modes, the utility model is not done qualification to this.
Need to prove that the structure that is arranged on the module that the structure of respectively carrying the fixture in the pipe can fix as required designs,
In conjunction with the accompanying drawings the absolute construction of each module is elaborated respectively below.
As shown in Figure 3, be a kind of mounting structure schematic diagram of measurement module in the utility model underground monitoring device.
Wherein, measurement module 102 is fixed in the pressure-bearing pipe 30 by fixture 31, and fixture 31 is provided with through hole, is used to pass lead 9.
In actual applications, described memory module 103 and communication module 104 can also be fixed in the same carrying pipe, its mounting structure and shown in Figure 3 similar is not described in detail at this.
As shown in Figure 4, be a kind of mounting structure schematic diagram of power module in the utility model underground monitoring device.
Wherein, pressure-bearing pipe 40 inside are power module 105, and described power module 105 specifically can be battery pack or ac-dc power conversion circuit, for each module in the described measurement mechanism provides power supply.Pressure-bearing pipe 40 bottoms are provided with insulation retainer part 41, are used for fixing described battery pack or ac-dc power conversion circuit.There is through hole 42 at insulation retainer part 41 centers, are used for by lead 9, to realize the electrical connection of each intermodule.
The front is mentioned, and fixedly each pressure-bearing pipe of disparate modules need join successively by the insulated enclosure connector, and described insulated enclosure connector can be arranged on the internal and external threads of each pressure-bearing pipe and described protective cover joint joint.Certainly, the two ends of each pressure-bearing pipe all can also be designed to internal thread, by the externally threaded insulated enclosure connector that has that adapts with it each carrying pressure be joined in twos then.
As shown in Figure 5, be a kind of structural representation of insulated enclosure connector in the utility model underground monitoring device.
Wherein, insulated enclosure connector 50 external Design are external screw thread, and the center is provided with through hole 52 to pass through lead 9.Also designed high-temperature resistant seal ring 51 at each pressure-bearing union place, to guarantee the sealing of junction.
In actual applications; the pressure-bearing pipe that memory module and communication module are installed can be connected the lower end of the pressure-bearing pipe that power module is installed by above-mentioned insulated enclosure connector; the pressure-bearing pipe that installs and measures module is connected the lower end of the pressure-bearing pipe that memory module and communication module are installed by above-mentioned insulated enclosure connector, and then the protective cover that the sample module will be installed is connected the lower end of the pressure-bearing pipe that installs and measures module by above-mentioned insulated enclosure connector.Each pressure-bearing pipe and described protective cover can adopt identical materials, also can be different, this utility model is not done qualification.
In order further subsurface environment to be made assessment is arranged accurately, in another embodiment of the present utility model, described underground monitoring device also can further comprise: pressure sensor and temperature pick up.Wherein: described pressure sensor, can be arranged in the described protective cover, as shown in Figure 2, pressure sensor 71 is arranged on the below of the carrier 21 of specimen, is used to measure the pressure of described specimen in the down-hole, obtains pressure measurement data; Described temperature pick up can be fixed in the same pressure-bearing pipe with described measurement module, is used to measure the temperature of described specimen in the down-hole, obtains temperature measuring data.Correspondingly, described measurement module 102, the measurement that also is used to control described pressure sensor and described temperature pick up is at interval.Certainly, described measurement module 102 also can be controlled the measurement parameters such as sampling interval to described specimen.
By synchro measure to oil, gas field down-hole pressure and temperature, can realize the automatic compensation of specimen in the parameter of down-hole, improve the parameter measurement precision.
Described underground monitoring device is in the installation of down-hole for convenience, and also can further be provided with in described device: fixed part is used for described underground monitoring device is connected to the installation site, down-hole.Such as, described fixed part can be designed to the jig joint.
As shown in Figure 6, be a kind of structural representation of fixed part in the utility model underground monitoring device.
Wherein, fixed part 61 is used for described underground monitoring device is connected to the fastening devices of down-hole.Internal thread is arranged at fixed part 61 bottoms, is used to connect the pressure-bearing pipe of power module.Described communication interface 104 ' be arranged at described fixed part 61 tops, and link to each other with described communication module by lead.Fixed part 61 bottoms are provided with spring 62, connect with the ground connection of guaranteeing power cathode.Fixed part 61 has high-temperature resistant seal ring 63, to guarantee the sealing of junction.
Certainly, the utility model does not limit the concrete structure of described fixed part 61, specifically can design according to actual installation space, down-hole and position.
More than disclosed only be preferred implementation of the present utility model; but the utility model is not limited thereto; any those skilled in the art can think do not have a creationary variation; and, all should drop in the protection domain of the present utility model not breaking away from some improvements and modifications of being done under the utility model principle prerequisite.
Claims (11)
1. a underground monitoring device is characterized in that, comprising:
The sample module is used to provide specimen;
Measurement module is used to measure the parameter of described specimen in the down-hole, obtains survey data;
Memory module is used to store described survey data;
Communication module is used for described survey data is sent to the ground handling station by the communication interface that links to each other with described communication module;
The power supply that provides other each modules required is provided power module.
2. underground monitoring device as claimed in claim 1, it is characterized in that, described sample module comprises: two groups of same test samples, every group of specimen comprises an actual sample and an auxiliary sample that does not contact with the downhole corrosion environment that is exposed in the downhole corrosion environment.
3. underground monitoring device as claimed in claim 2; it is characterized in that described two groups of specimen are installed on the identical carrier, described carrier is outside equipped with protective cover; the bottom of described protective cover is provided with pod apertures, so that described actual sample fully contacts with the downhole corrosion environment.
4. underground monitoring device as claimed in claim 3 is characterized in that, described device also comprises:
Pressure sensor is arranged in the described protective cover, is used to measure the pressure of described specimen in the down-hole, obtains pressure measurement data;
Temperature pick up is fixed in the same pressure-bearing pipe with described measurement module, is used to measure the temperature of described specimen in the down-hole, obtains temperature measuring data;
Described measurement module, the measurement that also is used to control described pressure sensor and described temperature pick up at interval.
5. underground monitoring device as claimed in claim 1; it is characterized in that; described measurement module, memory module, communication module, power module are fixed on one independently in the pressure-bearing pipe by fixture respectively separately; each pressure-bearing pipe joins successively by the insulated enclosure connector; and the pressure-bearing pipe that is fixed with measurement module joins by insulated enclosure connector and described protective cover, and each module is electrically connected by lead.
6. underground monitoring device as claimed in claim 5 is characterized in that, described insulated enclosure connector is the internal and external threads that is arranged on each pressure-bearing pipe and described protective cover joint joint.
7. as each described underground monitoring device of claim 1 to 6, it is characterized in that described device also comprises: fixed part is used for described underground monitoring device is connected to the installation site, down-hole.
8. underground monitoring device as claimed in claim 7 is characterized in that, described fixed part is the jig joint, and described jig joint periphery is with high-temperature resistant seal ring.
9. underground monitoring device as claimed in claim 8 is characterized in that, described jig joint bottom is provided with spring, is used to clamp being connected of described power module and ground.
10. underground monitoring device as claimed in claim 7 is characterized in that, described communication interface is arranged at described fixed part top, and links to each other with described communication module by lead.
11., it is characterized in that described power module is: battery pack or ac-dc converter circuit as each described underground monitoring device of claim 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202188633U CN201671620U (en) | 2010-05-31 | 2010-05-31 | Down-hole monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202188633U CN201671620U (en) | 2010-05-31 | 2010-05-31 | Down-hole monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201671620U true CN201671620U (en) | 2010-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202188633U Expired - Fee Related CN201671620U (en) | 2010-05-31 | 2010-05-31 | Down-hole monitoring device |
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| CN (1) | CN201671620U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314556A (en) * | 2014-10-22 | 2015-01-28 | 徐州隆安光电科技有限公司 | Collecting and analyzing system of mining digital pressure gauge |
| CN105587307A (en) * | 2016-02-01 | 2016-05-18 | 荆州市明德科技有限公司 | Remote on-line monitoring system for oil field acidification |
| CN106950171A (en) * | 2017-03-24 | 2017-07-14 | 中石化节能环保工程科技有限公司 | Downhole well corrosion monitoring device |
-
2010
- 2010-05-31 CN CN2010202188633U patent/CN201671620U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314556A (en) * | 2014-10-22 | 2015-01-28 | 徐州隆安光电科技有限公司 | Collecting and analyzing system of mining digital pressure gauge |
| CN105587307A (en) * | 2016-02-01 | 2016-05-18 | 荆州市明德科技有限公司 | Remote on-line monitoring system for oil field acidification |
| CN106950171A (en) * | 2017-03-24 | 2017-07-14 | 中石化节能环保工程科技有限公司 | Downhole well corrosion monitoring device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101215 Termination date: 20160531 |
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| CF01 | Termination of patent right due to non-payment of annual fee |