CN204855829U - Data acquisition of electromagnetic survey frequently device during ground - well - Google Patents
Data acquisition of electromagnetic survey frequently device during ground - well Download PDFInfo
- Publication number
- CN204855829U CN204855829U CN201520648262.9U CN201520648262U CN204855829U CN 204855829 U CN204855829 U CN 204855829U CN 201520648262 U CN201520648262 U CN 201520648262U CN 204855829 U CN204855829 U CN 204855829U
- Authority
- CN
- China
- Prior art keywords
- well
- field sensor
- ground
- harvester
- data acquisition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Geophysics And Detection Of Objects (AREA)
Abstract
The utility model discloses a data acquisition of electromagnetic survey frequently device during ground - well, the device includes high power pulse emitter controlling means, electromagnetic signal receives collection system in emit antenna and the well, electromagnetic signal receives collection system and passes through logging cable and be connected with subaerial instrument cab in the well, electromagnetic signal receives the depth position of collection system in the well in the instrument cab control well, electromagnetic signal receipt collection system includes data acquisition and transmission device in the well, a pair of three -component magnetic field sensor and vertical component electric -field sensor. The utility model discloses greatly reduce the various industry in ground and the electromagnetic interference's of humanity influence, improve the SNR of data, can realize high -power the transmission, be favorable to surveying and bury more deeply or leave farther exploration targets from receiving the well spacing to the anisotropic characteristic of formation resistivity be can instruct, the occurrence on stratum and the information that the well squinted are provided.
Description
Technical field
The utility model belongs to technical field of geophysical exploration, refers to a kind of ground-well time-frequency electromagnetic survey data harvester particularly.
Background technology
Geophysical exploration method mainly contains the method for exploration such as seismic method, DC electrical method, magnetic method, gravitational method and electromagnetic method.Wherein electromagnetic method is also known as " inductive electromagnetic method ", according to rock or the electric conductivity of ore and the difference of magnetic conductivity, utilizes electromagnetic induction principle to carry out the method for exploration prospecting, is referred to as electromagnetic method.
Wherein, the application of ground time-frequency electromagnetic survey technology, has played important effect in structural belt and special objective joint interpretation, the evaluation of hydrocarbon trap joint-detection etc.Well ground electromagnetic survey technology have passed through the research and development of recent two decades, has been formed as more ripe method.The method of electromagnetic field excitation can be divided into frequency domain excitation and time domain excitation.The limitation that frequency field (continuous wave) encourages has very strong coupling between transmitter and receiver, make from transmitter directly to the source field signal of receiver more than strong from the signal stratum, be thus difficult to measure the electromagnetic field signal received from stratum exactly.Although adopt the method that multi-objective technology and application many groups measurement data combine, can furnish us with the information of paid close attention to formation at target locations, the net signal obtained is still less compared with overall measurement signal, and useful information is very little.
US Patent specification US6739165B1 discloses well ground electromagnetic measuring system and measuring method for determining properties of fluid in bearing stratum.This system is first by natural magnetotelluric field that the magnetotelluric data collecting device collection being laid in ground is initial, the initial electromagnetic field of reservoir is measured by the electromagnetic sensor being laid in ground and down-hole, then gone out resistivity or the conductivity of subsurface reservoir by Inversion Calculation, and derive initial earth-electricity model and the initial underground fluid initial surface of contact as profit or air water accordingly.After certain interval of time, repeat the reservoir electromagnetic field measurements in above-mentioned ground and well, Inversion Calculation goes out resistivity or the conductivity of subsurface reservoir, and the space distribution of the earth-electricity model derived accordingly now and now underground fluid and different fluid surface of contact.The condition of production of hydrocarbon-bearing pool is monitored by the changes in spatial distribution of fluid and different fluid surface of contact in monitoring subsurface reservoir.But this well ground electromagnetic measuring system easily disturbs by ground man-made noise, reduces the signal to noise ratio (S/N ratio) of electromagnetic data.
Summary of the invention
The purpose of this utility model overcomes the deficiencies in the prior art, provides a kind of ground-well time-frequency electromagnetic survey data harvester.
For achieving the above object, the utility model provides a kind of ground-well time-frequency electromagnetic survey data harvester, and this device comprises:
In highpowerpulse emissive source control device, emitting antenna and well, electromagnetic signal receives harvester, in described well, electromagnetic signal reception harvester is connected with ground instrument truck by logging cable, in described instrument truck control well, electromagnetic signal receives the depth location of harvester in well, its special character is, described highpowerpulse emissive source control device provides highpowerpulse exciting current to emitting antenna; Described emitting antenna passes through the ground-electrode at ground connection long lead two ends by direct for highpowerpulse exciting current feed-in ground, or by access around the square large loop line of well or around the circular large loop line excitation electromagnetic field of well; In described well, electromagnetic signal reception harvester comprises data acquisition and transmitting device, a pair three-component magnetic field sensor and vertical component electric-field sensor, described a pair three-component magnetic field sensor is arranged at the top and bottom of data acquisition and transmitting device respectively, described electric-field sensor is a pair non-polarizing electrode ring or the electrode block that are installed on data acquisition and transmitting device top and bottom, and described data acquisition is connected with three-component magnetic field sensor, electric-field sensor with electric field data passage respectively with the magnetic field data passage of transmitting device.
Preferably, described emitting antenna is two mutually orthogonal ground connection long leads centered by well or around the square large loop line of well or around the circular large loop line of well.
Further, the length of described ground connection long lead is 1000m ~ 10000m, described highpowerpulse emissive source control device by reversing switch to two ground connection long lead interleaved powers.
Further, the described length of side around the square large loop line of well is 500m ~ 3000m, and the described radius around the circular large loop line of well is 500m ~ 1000m.
Again further, described three-component magnetic field sensor is three mutually orthogonal magnetic induction coils or triaxial fluxgate magnetometer.
Further, described a pair three-component magnetic field sensor is at a distance of 10m, and a pair non-polarizing electrode ring of described electric-field sensor or electrode block are at a distance of 10m.
The utility model ground-well time-frequency electromagnetic survey data harvester, the formation resistivity distribution waited to log well around Duan Jing in larger scope can be detected, the resolution characteristic to objective body can also be improved, greatly reduce the various man-made noise in ground to the interference of down-hole time-frequency electromagnetic data, improve the signal to noise ratio (S/N ratio) of electromagnetic data, and the anisotropic properties of formation resistivity can be indicated, the occurrence on stratum and the information of well skew are provided, and the explanation realized reservoir parameter and evaluation.
Accompanying drawing explanation
Fig. 1 is the structural representation of the first embodiment of the utility model ground-well time-frequency electromagnetic survey data harvester.
Fig. 2 is the structural representation of the second embodiment of the utility model ground-well time-frequency electromagnetic survey data harvester.
Fig. 3 is the structural representation of down-hole time-frequency electromagnetic data harvester in Fig. 1 and Fig. 2.
In figure: in highpowerpulse emissive source control device 1, emitting antenna 2, highpowerpulse exciting current waveform 3, instrument truck 4, well, electromagnetic signal receives harvester 5, data acquisition and transmitting device 6, three-component magnetic field sensor 7, electric-field sensor 8.
Embodiment
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing, but they do not form to restriction of the present utility model, only for example, simultaneously by illustrating that advantage of the present utility model will become clearly and easy understand.
The utility model ground-well time-frequency electromagnetic survey data harvester has two kinds of embodiments, as follows:
Embodiment 1
With reference to figure 1 and Fig. 3, ground-well time-frequency electromagnetic survey data harvester, comprise electromagnetic signal in highpowerpulse emissive source control device 1, emitting antenna 2 and well and receive harvester 5, in well, electromagnetic signal reception harvester 5 is connected with ground instrument truck 4 by logging cable, and in instrument truck 4 control well, electromagnetic signal receives the depth location of harvester 5 in well.
Emitting antenna 2 is two mutually orthogonal ground connection long leads centered by well, and the length of ground connection long lead is 1000m ~ 10000m, highpowerpulse emissive source control device 1 by reversing switch to two ground connection long lead interleaved powers.Highpowerpulse emissive source control device 1 provides highpowerpulse exciting current 3 to emitting antenna 2, and emitting antenna 2 passes through the ground-electrode at ground connection long lead two ends by highpowerpulse exciting current 3 directly feed-in ground.
In well, electromagnetic signal reception harvester 5 comprises data acquisition and transmitting device 6, a pair three-component magnetic field sensor 7 and vertical component electric-field sensor 8.A pair three-component magnetic field sensor 7 is arranged at the top and bottom of data acquisition and transmitting device 6 respectively, and a pair three-component magnetic field sensor 7 is at a distance of 10m, and three-component magnetic field sensor 7 is three mutually orthogonal magnetic induction coils or triaxial fluxgate magnetometer.Electric-field sensor 8 is for being installed on a pair non-polarizing electrode ring or the electrode block of data acquisition and transmitting device 6 top and bottom, and this is to non-polarizing electrode ring or electrode block 10m apart.Data acquisition is connected with three-component magnetic field sensor 7, electric-field sensor 8 with electric field data passage respectively with the magnetic field data passage of transmitting device 6.
Embodiment 2
Referring to figs. 2 and 3, embodiment 2 is with the difference of embodiment 1, emitting antenna 2 be centered by well around the square large loop line of well or around the circular large loop line of well, the length of side around the square large loop line of well is 500m ~ 3000m, the radius around the circular large loop line of well is 500m ~ 1000m.Other are identical with embodiment 1.
Other unspecified part all belongs to prior art.
Claims (6)
1. ground-well time-frequency electromagnetic survey data harvester, comprise electromagnetic signal in highpowerpulse emissive source control device (1), emitting antenna (2) and well and receive harvester (5), in described well, electromagnetic signal reception harvester (5) is connected with ground instrument truck (4) by logging cable, in described instrument truck (4) control well, electromagnetic signal receives harvester (5) depth location in well, it is characterized in that
Described highpowerpulse emissive source control device (1) provides highpowerpulse exciting current (3) to emitting antenna (2); Described emitting antenna (2) by the ground-electrode at ground connection long lead two ends by highpowerpulse exciting current (3) directly feed-in ground, or by access around the square large loop line of well or around the circular large loop line excitation electromagnetic field of well;
In described well, electromagnetic signal reception harvester (5) comprises data acquisition and transmitting device (6), a pair three-component magnetic field sensor (7) and vertical component electric-field sensor (8), described a pair three-component magnetic field sensor (7) is arranged at the top and bottom of data acquisition and transmitting device (6) respectively, described electric-field sensor (8) is for being installed on a pair non-polarizing electrode ring or the electrode block of data acquisition and transmitting device (6) top and bottom, the magnetic field data passage of described data acquisition and transmitting device (6) and electric field data passage respectively with three-component magnetic field sensor (7), electric-field sensor (8) is connected.
2. according to claim 1ly-well time-frequency electromagnetic survey data harvester, is characterized in that, described emitting antenna (2) is two mutually orthogonal ground connection long leads centered by well or around the square large loop line of well or around the circular large loop line of well.
3. according to claim 2ly-well time-frequency electromagnetic survey data harvester, it is characterized in that, the length of described ground connection long lead is 1000m ~ 10000m, described highpowerpulse emissive source control device (1) by reversing switch to two ground connection long lead interleaved powers.
4. according to claim 2ly-well time-frequency electromagnetic survey data harvester, is characterized in that, the described length of side around the square large loop line of well is 500m ~ 3000m, and the described radius around the circular large loop line of well is 500m ~ 1000m.
5. the ground according to claim 3 or 4-well time-frequency electromagnetic survey data harvester, is characterized in that, described three-component magnetic field sensor (7) is three mutually orthogonal magnetic induction coils or triaxial fluxgate magnetometer.
6. according to claim 5ly-well time-frequency electromagnetic survey data harvester, it is characterized in that, described a pair three-component magnetic field sensor (7) is at a distance of 10m, and a pair non-polarizing electrode ring of described electric-field sensor (8) or electrode block are at a distance of 10m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520648262.9U CN204855829U (en) | 2015-08-25 | 2015-08-25 | Data acquisition of electromagnetic survey frequently device during ground - well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520648262.9U CN204855829U (en) | 2015-08-25 | 2015-08-25 | Data acquisition of electromagnetic survey frequently device during ground - well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204855829U true CN204855829U (en) | 2015-12-09 |
Family
ID=54746365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520648262.9U Expired - Fee Related CN204855829U (en) | 2015-08-25 | 2015-08-25 | Data acquisition of electromagnetic survey frequently device during ground - well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204855829U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105044792A (en) * | 2015-08-25 | 2015-11-11 | 长江大学 | Ground-well time-frequency electromagnetic exploration data acquisition apparatus and method |
| CN110208866A (en) * | 2019-07-10 | 2019-09-06 | 中油奥博(成都)科技有限公司 | Ground well arrayed optical fiber time-frequency electromagnetic data acquisition device and its collecting method |
| CN111983703A (en) * | 2020-07-24 | 2020-11-24 | 中国石油天然气集团有限公司 | Method, system and device for imaging fluid through interwell electromagnetic measurement |
| CN113063845A (en) * | 2021-03-25 | 2021-07-02 | 西南石油大学 | Buried pipeline buried depth rapid detection method based on self-leakage magnetic field and artificial neural network |
-
2015
- 2015-08-25 CN CN201520648262.9U patent/CN204855829U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105044792A (en) * | 2015-08-25 | 2015-11-11 | 长江大学 | Ground-well time-frequency electromagnetic exploration data acquisition apparatus and method |
| CN105044792B (en) * | 2015-08-25 | 2018-06-19 | 长江大学 | Ground-well time-frequency electromagnetic survey data harvester and method |
| CN110208866A (en) * | 2019-07-10 | 2019-09-06 | 中油奥博(成都)科技有限公司 | Ground well arrayed optical fiber time-frequency electromagnetic data acquisition device and its collecting method |
| CN110208866B (en) * | 2019-07-10 | 2024-03-22 | 中油奥博(成都)科技有限公司 | Ground well array type optical fiber time-frequency electromagnetic data acquisition device and data acquisition method thereof |
| CN111983703A (en) * | 2020-07-24 | 2020-11-24 | 中国石油天然气集团有限公司 | Method, system and device for imaging fluid through interwell electromagnetic measurement |
| CN111983703B (en) * | 2020-07-24 | 2023-07-25 | 中国石油天然气集团有限公司 | Method, system and device for imaging electromagnetic measurement fluid between wells |
| CN113063845A (en) * | 2021-03-25 | 2021-07-02 | 西南石油大学 | Buried pipeline buried depth rapid detection method based on self-leakage magnetic field and artificial neural network |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105044792B (en) | Ground-well time-frequency electromagnetic survey data harvester and method | |
| US8030934B2 (en) | Method for hydrocarbon reservoir mapping and apparatus for use when performing the method | |
| CN110208866B (en) | Ground well array type optical fiber time-frequency electromagnetic data acquisition device and data acquisition method thereof | |
| CN101520517B (en) | Method for accurately evaluating targets containing oil gas in clastic rock basin | |
| CN104656157B (en) | A kind of method and device in identification shale gas dessert area | |
| US9389331B2 (en) | Long baseline navigation system | |
| CN206960676U (en) | A kind of Electromagnetic Survey of Underground Pipelines device | |
| CN104360399B (en) | Transient electromagnetic detecting method and device under long wired earth seedbed | |
| Zhen‐Zhu et al. | Opposing coils transient electromagnetic method for shallow subsurface detection | |
| CN204855829U (en) | Data acquisition of electromagnetic survey frequently device during ground - well | |
| CN109085653A (en) | A kind of detection method of geology of deep part, sulfide ore body resource | |
| CN104035137B (en) | Underground full-space transient electromagnetic detecting instrument and detection method | |
| AU2020101105A4 (en) | A method for grounded short-offset transient electromagnetic geophysical surveying | |
| CN104375194B (en) | Electrical source transient electromagnetic exploration method in water-rich area of deep mining mine | |
| CN114217354A (en) | Electromagnetic data acquisition system and method based on optical fiber electromagnetic sensor | |
| CN103499838A (en) | Transient electromagnetic measuring device and recognizing method for anomalous body orientation recognition | |
| CN210038187U (en) | Ground well array type optical fiber time-frequency electromagnetic data acquisition device | |
| AU2020101824A4 (en) | A multi-source short-offset frequency domain electromagnetic detection method | |
| CN202735524U (en) | Underground water distribution detection device with transient electromagnetic method | |
| CN104749643A (en) | CSAMT (controlled source audio frequency magneto telluric) measuring method and device used for electromagnetic interference areas | |
| CN205562832U (en) | Nuclear magnetic resonance signal arouses and receiving arrangement in mine based on superconductor technology | |
| CN106610509B (en) | Time domain processing method for transient electromagnetic data | |
| CN103775076A (en) | Magnetic susceptibility detecting device | |
| CN213398937U (en) | Time-frequency electromagnetic fracturing monitoring system based on distributed optical fiber sensing | |
| CN203480046U (en) | Transient electromagnetic measuring device for anomalous body azimuth recognition |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20151209 Termination date: 20200825 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |