CN206545509U - A kind of electromagnetic measurement while drilling system based on offset well reception antenna - Google Patents
A kind of electromagnetic measurement while drilling system based on offset well reception antenna Download PDFInfo
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- CN206545509U CN206545509U CN201720104617.7U CN201720104617U CN206545509U CN 206545509 U CN206545509 U CN 206545509U CN 201720104617 U CN201720104617 U CN 201720104617U CN 206545509 U CN206545509 U CN 206545509U
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- offset well
- drilling rod
- receiving unit
- reception antenna
- circuit
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Abstract
The utility model is related to a kind of electromagnetic measurement while drilling system based on offset well reception antenna, including drilling rod emitting module, offset well receiving unit and ground display terminal.Drilling rod emitting module is inserted into bottom to be measured, and offset well receiving unit is arranged in offset well, and the upper end of drilling rod emitting module is electrically connected with offset well receiving unit, and lower end and offset well receiving unit wireless connection, offset well receiving unit are electrically connected with ground display terminal.The utility model receives signal using offset well reception antenna, ground Hz noise can be avoided, reduce propagation loss of the electromagnetic wave signal in offset well receiver upper formation, fathoming for electromagnetic measurement while drilling system is substantially increased, in the exploration and development that can be widely applied for the new energy such as coal bed gas, shale gas, geothermal well, hot dry rock.
Description
Technical field
The utility model is related to technical field of geological exploration, more particularly to a kind of electromagnetism based on offset well reception antenna with brill
Measuring system.
Background technology
In the exploration and development of the new energy such as shale gas, coal bed gas, combustible ice, underground heat, hot dry rock, to ensure the suitable of drilling
Profit is carried out, it is necessary to obtain downhole parameters in time, and these drilling parameters are sent into earth's surface, i.e. measurement while drilling.Measurement while drilling is pressed
The transmission medium of information is divided into cable measurement and wireless drilling measurement.Traditional cable measurement needs stop under measuring instrument after boring
Enter shaft bottom measurement, interference creeps into normal operation and can not obtain real-time drilling parameter.Wireless drilling measurement overcomes cable survey
The shortcoming of amount, typically comprises mud-pulse measurement while drilling and electromagnetic measurement while drilling.Mud-pulse measurement while drilling is made using mud
It is past in order to protect the reservoir of low-pressure stratum for the transmission medium of information, but in the drilling on the stratum such as coal bed gas, shale gas
It is past to use the compressibility drilling fluids such as foam mud, fluffy mud so that mud-pulse measurement while drilling can not be used normally.
At present, typically the transmission depth of electromagnetic measurement while drilling system is increased by the method for relay transmission both at home and abroad, i.e.,
One or several repeaters are installed in the middle part of drilling rod, by the electromagnetic wave signal at repeater received well bottom, after filter and amplification again
Launch, successively transmission upwards.However, because repeater is arranged in drilling rod, significantly reducing the intensity of drilling rod, increase
Drilling accident rate；Secondly every grade of relay transmission is required for carrying out decoding demodulation to electromagnetic wave signal, restores measurement number
Re-start coded modulation again after, and every grade of relay transmission need to use the electromagnetic wave of different frequency, can make every grade of relaying generation
Signal errors accumulation, or even cause measurement while drilling to fail.
Utility model content
Technical problem to be solved in the utility model is based on offset well for above-mentioned the deficiencies in the prior art there is provided one kind
The electromagnetic measurement while drilling system of reception antenna.
The utility model solve above-mentioned technical problem technical scheme it is following there is provided a kind of based on offset well reception antenna
Electromagnetic measurement while drilling system, including drilling rod emitting module, offset well receiving unit and ground display terminal.
The drilling rod emitting module is inserted into bottom to be measured, and the offset well receiving unit is arranged in offset well, and described
The upper end of drilling rod emitting module is electrically connected with the offset well receiving unit, lower end and the offset well receiving unit wireless connection, institute
Offset well receiving unit is stated to electrically connect with the ground display terminal；The drilling rod emitting module is used to gather sensing ginseng to be logged well
Number signal simultaneously carries out the first signal transacting, obtains analog parameter signal, the analog parameter signal is launched into the neighbour into offset well
Well receiving unit；The offset well receiving unit is used to carry out secondary signal processing to the analog parameter signal, obtains described treat
The target component information of well logging；The ground display terminal is used to show the target component information to be logged well.
Electromagnetic measurement while drilling system of the present utility model based on offset well reception antenna, is received using offset well reception antenna and believed
Number, ground Hz noise can be avoided, electromagnetic wave signal is reduced in the propagation loss of offset well receiver upper formation, greatly increases
Add fathoming for electromagnetic measurement while drilling system, can be widely applied for coal bed gas, shale gas, geothermal well, hot dry rock etc. new
In the exploration and development of the energy.
On the basis of above-mentioned technical proposal, the utility model can also do following improvement：
Further：The drilling rod emitting module includes upper drilling rod, insulating short section and the lower drilling rod being sequentially connected with from top to bottom,
The upper drilling rod and lower drilling rod are conductor, and the insulating short section inner hollow is set, and inserting tube is provided with the insulating short section
Assembly, the upper and lower ends of the inserting tube assembly are electrically connected with the upper drilling rod and lower drilling rod respectively, and the inserting tube assembly passes through institute
State drilling rod to be connected with the offset well receiving unit, the inserting tube assembly also passes through the lower drilling rod and the offset well receiving unit
Wireless connection, and drilling rod emitting module and offset well receiving unit formation loop.
The beneficial effect of above-mentioned further scheme is：Drilling rod emitting module can on the premise of drilling well is met, by
The insulating short section is embedded in the inserting tube assembly, it is possible to achieve the sensed parameter signal in waiting to log well is acquired, and is easy to
The sensed parameter signal in waiting to log well accurately is obtained, and sends the offset well receiving unit into the offset well.
Further：Between the upper drilling rod and the offset well receiving unit and offset well receiving unit and the ground
Electrically connected between display terminal by armored cable.
The beneficial effect of above-mentioned further scheme is：On the one hand the inserting tube assembly can be realized by the armored cable
Two-way signaling between the offset well receiving unit and between the offset well receiving unit and the ground display terminal is passed
It is defeated, on the other hand, it is possible to use there is the armored cable higher mechanical strength can suspend the offset well receiving unit in midair
It is arranged in the offset well, is easy to receive the signal that the inserting tube assembly is wirelessly launched.
Further：The inserting tube assembly includes signal acquisition circuit, signal processing circuit and radiating circuit, the collection electricity
Road, signal processing circuit and radiating circuit are in sequential series, and the radiating circuit is connected with upper drilling rod and lower drilling rod respectively.The letter
Number Acquisition Circuit is used to gather sensed parameter signal to be logged well；The signal processing circuit is used for the sensing to be logged well
Parameter signal carries out the first signal transacting, obtains analog parameter signal；The radiating circuit is used for the analog parameter signal
Launch the offset well receiving unit into offset well.
The beneficial effect of above-mentioned further scheme is：The sensing in waiting to log well can be gathered by the signal acquisition circuit
Parameter signal, and the first signal transacting is carried out by the signal processing circuit, then launch, the offset well into the offset well is received
Component, it is possible to reduce external disturbance.
Further：The signal acquisition circuit includes pressure sensor, the temperature electrically connected with the signal processing circuit
Spend sensor, gravity accelerometer and magnetoresistive transducer.
The beneficial effect of above-mentioned further scheme is：Passed by the pressure sensor, temperature sensor, acceleration of gravity
Sensor and magnetoresistive transducer can gather respectively it is described wait to log well in pressure, temperature, gravitational field and magnetic field intensity.
Further：The offset well receiving unit includes offset well receiver and at least one elastic reception antenna, the offset well
Receiver is electrically connected by the armored cable with the upper drilling rod, and the elastic reception antenna is arranged in the offset well, and
Setting is contacted with the offset well inwall, the offset well receiver receives antenna electric with the elasticity and is connected, and the elasticity receives day
Line and the radiating circuit wireless connection.The elastic reception antenna is used to receive the analog parameter signal and sent to described
Offset well receiver；The offset well receiver is used to carry out secondary signal processing to the analog parameter signal, obtains to be logged well
Target component information, and send to the ground display terminal and shown.
The beneficial effect of above-mentioned further scheme is：By the elastic reception antenna can receive the inserting tube assembly with
The analog parameter signal that unlimited mode is launched, can so avoid Hz noise, and the offset well receiver can be to the mould
Intend parameter signal and carry out secondary signal processing, obtain waiting the target component information in logging well, as a result accurately.
Further：The offset well receiving unit also includes winch, and the winch is arranged on above the import of the offset well, and
The armored cable is rich to be connected on the winch, and offset well receiver suspension is arranged on the armored cable positioned at the neighbour
One end in well.
The beneficial effect of above-mentioned further scheme is：Can be with armored cable described in folding and unfolding by the winch, so can be with
The offset well receiving unit is eaily lifted, is easy to meet actually detected demand.
Brief description of the drawings
Fig. 1 is a kind of electromagnetic measurement while drilling system mechanical structure signal based on offset well reception antenna of the present utility model
Figure；
Fig. 2 is a kind of electromagnetic measurement while drilling system circuit structure signal based on offset well reception antenna of the present utility model
Figure；
Fig. 3 is inserting tube assembly circuit in a kind of electromagnetic measurement while drilling system based on offset well reception antenna of the present utility model
Structural representation；
Fig. 4 is offset well receiving unit in a kind of electromagnetic measurement while drilling system based on offset well reception antenna of the present utility model
Electrical block diagram.
In accompanying drawing, the list of parts representated by each label is as follows：
1st, drilling rod emitting module, 2, offset well receiving unit, 3, ground display terminal, 4, wait to log well, 5, offset well, 6, armouring electricity
Cable；
11st, upper drilling rod, 12, insulating short section, 13, lower drilling rod, 14, inserting tube assembly, 21, offset well receiver, 22, elasticity receives
Antenna, 23, winch.
Embodiment
Principle of the present utility model and feature are described below in conjunction with accompanying drawing, example is served only for explaining this practicality
It is new, it is not intended to limit scope of the present utility model.
As illustrated in fig. 1 and 2, a kind of electromagnetic measurement while drilling system based on offset well reception antenna, including drilling rod emitting module
1st, offset well receiving unit 2 and ground display terminal 3.
The drilling rod emitting module 1, which is inserted into, waits 4 bottoms of logging well, and the offset well receiving unit 2 is arranged in offset well 5, and
The upper end of the drilling rod emitting module 1 is electrically connected with the offset well receiving unit 2, and lower end and the offset well receiving unit 2 are wireless
Connection, the offset well receiving unit 2 is electrically connected with the ground display terminal 3.
The drilling rod emitting module 1 is used to gather the sensed parameter signal for treating well logging 4 and carries out the first signal transacting, obtains
Analog parameter signal, the analog parameter signal is launched the offset well receiving unit 2 into offset well 5；The offset well receiving unit 2
For carrying out secondary signal processing to the analog parameter signal, the target component information for treating well logging 4 is obtained；The ground
Display terminal 3 is used to show the target component information for treating well logging 4.Here, the target component information for treating well logging 4 includes
Pressure, temperature, gravitational field and magnetic field intensity etc..
The electromagnetic measurement while drilling system based on offset well reception antenna of above-described embodiment, is received using offset well reception antenna and believed
Number, ground Hz noise can be avoided, electromagnetic wave signal is reduced in the propagation loss of offset well receiver upper formation, greatly increases
Add fathoming for electromagnetic measurement while drilling system, can be widely applied for coal bed gas, shale gas, geothermal well, hot dry rock etc. new
In the exploration and development of the energy.
In the present embodiment, the drilling rod emitting module 1 includes upper drilling rod 11, the insulating short section 12 being sequentially connected with from top to bottom
With lower drilling rod 13, the upper drilling rod 11 and lower drilling rod 13 are conductor, and the inner hollow of insulating short section 12 is set, and described exhausted
Be provided with inserting tube assembly 14 in edge pipe nipple 12, the upper and lower ends of the inserting tube assembly 14 respectively with the upper drilling rod 11 and lower drilling rod 13
Electrical connection, 14 points of the inserting tube assembly is that two-way launches the analog parameter information, is transferred to all the way by the upper drilling rod 11
The offset well receiving unit 2, the offset well that another road is wirelessly transmitted in the offset well 5 by the lower drilling rod 13 by stratum connects
Receive component 2, and drilling rod emitting module 1 and the offset well receiving unit 2 formation loop.Drilling rod emitting module 1 can be bored meeting
On the premise of well, by being embedded in the inserting tube assembly 14 in the insulating short section 12, it is possible to achieve treating the sensing in well logging 4
Parameter signal is acquired, and is easy to accurately obtain and is waited 4 intrinsic parameter information of logging well, and the offset well sent into the offset well 5 connects
Receive component 2.
Preferably, between the upper drilling rod 11 and the offset well receiving unit 2 and the offset well receiving unit 2 with it is described
Electrically connected between ground display terminal 3 by armored cable 6.The spy can be realized by the one side of armored cable 6
Between pipe assembly 14 and the offset well receiving unit 2 and between the offset well receiving unit 2 and the ground display terminal 3
Two-way signaling is transmitted, on the other hand, it is possible to use there is the armored cable 6 higher mechanical strength can connect the offset well
Receive the suspention of component 2 to be arranged in the offset well 5, be easy to receive the signal that the inserting tube assembly 14 is wirelessly launched.
As shown in figure 3, in the present embodiment, the inserting tube assembly 14 includes signal acquisition circuit, signal processing circuit and hair
Transmit-receive radio road, the Acquisition Circuit, signal processing circuit and radiating circuit are in sequential series, and the radiating circuit passes through the upper drilling rod
11 and armored cable 6 electrically connected with the offset well receiving unit 2, and the radiating circuit also with the nothing of offset well receiving unit 2
Line is connected.The signal acquisition circuit is used to gather the sensed parameter signal for treating well logging 4；The signal processing circuit is used for institute
State and treat that the sensed parameter signal of well logging 4 carries out the first signal transacting, obtain analog parameter signal；The radiating circuit is used for institute
State analog parameter signal and launch the offset well receiving unit 2 into offset well 5.It can be gathered by the signal acquisition circuit and wait to log well
Interior sensed parameter signal, and the first signal transacting is carried out by the signal processing circuit, then launch, into the offset well 5
Offset well receiving unit 2, it is possible to reduce external disturbance.
Preferably, the signal acquisition circuit includes pressure sensor, the temperature electrically connected with the signal processing circuit
Sensor, gravity accelerometer and magnetoresistive transducer are spent, pressure, temperature, gravitational field in well logging 4 is treated described in collection respectively
And magnetic field intensity.
Preferably, the signal processing circuit includes the first single-chip microcomputer and D/A converting circuit, first single-chip microcomputer point
Do not electrically connected with the signal acquisition circuit and D/A converting circuit, the D/A converting circuit is electrically connected with the radiating circuit
Connect.
Preferably, the radiating circuit constitutes H bridges using road using 4 metal-oxide-semiconductors, power amplification is carried out, to increase transmitting
Power.
As shown in figure 4, in the present embodiment, the offset well receiving unit 2 includes offset well receiver 21 and at least one elasticity
Reception antenna 22, the offset well receiver 21 is electrically connected by the armored cable 6 with the upper drilling rod 11, and the elasticity is received
Antenna 22 is arranged in the offset well 5, and contacts with the inwall of offset well 5 setting, the offset well receiver 21 and the elasticity
Reception antenna 22 is electrically connected, the elastic reception antenna 22 and the radiating circuit wireless connection.The elastic reception antenna 22
For receiving the analog parameter signal and sending to the offset well receiver 21；The offset well receiver 21 is used for the mould
Intend parameter signal and carry out secondary signal processing, obtain treating the target component information of well logging 4, and send to the ground display terminal
3 are shown.The simulation ginseng that the inserting tube assembly 14 is wirelessly launched can be received by the elastic reception antenna 22
Number signal, can so avoid Hz noise, and the offset well receiver 21 can carry out second to the analog parameter signal
Signal transacting, obtains treating the target component information in well logging 4, as a result accurately.
In the present embodiment, the offset well receiver 21 is put including pre-amplification circuit in sequential series, filter circuit, two grades
Big circuit, A/D converter circuit and second singlechip, the elastic reception antenna 22 is electrically connected with the pre-amplification circuit, described
Second singlechip is electrically connected with the ground display terminal 3.
The pre-amplification circuit is used to carry out preposition enhanced processing to the analog parameter signal；The filter circuit is used
In being filtered processing to the analog parameter signal after the preposition enhanced processing；The second amplifying circuit is used for
The analog parameter signal after to handling after filtering carries out secondary enhanced processing；The A/D converter circuit is used for through secondary
The analog parameter signal after enhanced processing carries out analog-to-digital conversion process；The second singlechip is used for AD conversion electricity
The data signal of road output is decoded, and obtains the target component information for treating well logging 4.
Preferably, the offset well receiving unit 2 also includes winch 23, and the winch 23 is arranged on the import of the offset well 5
Top, and the armored cable 6 is rich is connected on the winch 23, and the offset well receiver 21 suspension is arranged on the armouring electricity
Cable 6 is located at one end in the offset well 5.Can be with armored cable 6 described in folding and unfolding by the winch 23, so can be with more convenient
The lifting offset well receiving unit 2, be easy to meet actually detected demand.
Preferred embodiment of the present utility model is the foregoing is only, it is all in this practicality not to limit the utility model
Within new spirit and principle, any modification, equivalent substitution and improvements made etc. should be included in guarantor of the present utility model
Within the scope of shield.
Claims (9)
1. a kind of electromagnetic measurement while drilling system based on offset well reception antenna, it is characterised in that：Including drilling rod emitting module (1),
Offset well receiving unit (2) and ground display terminal (3)；
The drilling rod emitting module (1), which is inserted into, waits (4) bottom of logging well, and the offset well receiving unit (2) is arranged on offset well (5)
In, and the upper end of the drilling rod emitting module (1) electrically connects with the offset well receiving unit (2), lower end is received with the offset well
Component (2) wireless connection, the offset well receiving unit (2) electrically connects with the ground display terminal (3).
2. the electromagnetic measurement while drilling system according to claim 1 based on offset well reception antenna, it is characterised in that：It is described to bore
Bar emitting module (1) includes the upper drilling rod (11), insulating short section (12) and the lower drilling rod (13) that are sequentially connected with from top to bottom, it is described on
Drilling rod (11) and lower drilling rod (13) are conductor, and insulating short section (12) inner hollow is set, and the insulating short section (12)
It is interior to be provided with inserting tube assembly (14), the upper and lower ends of the inserting tube assembly (14) respectively with the upper drilling rod (11) and lower drilling rod (13)
Electrical connection, the inserting tube assembly (14) is connected by the upper drilling rod (11) with the offset well receiving unit (2), and the inserting tube is total
Into (14) also by the lower drilling rod (13) and offset well receiving unit (2) wireless connection, and drilling rod emitting module (1) and institute
State offset well receiving unit (2) formation loop.
3. the electromagnetic measurement while drilling system according to claim 2 based on offset well reception antenna, it is characterised in that：On described
Between drilling rod (11) and the offset well receiving unit (2) and the offset well receiving unit (2) and the ground display terminal (3)
Between pass through armored cable (6) electrically connect.
4. the electromagnetic measurement while drilling system according to claim 3 based on offset well reception antenna, it is characterised in that：It is described to visit
Pipe assembly (14) include signal acquisition circuit, signal processing circuit and radiating circuit, the Acquisition Circuit, signal processing circuit and
Radiating circuit is in sequential series, and the radiating circuit is connected with upper drilling rod (11) and lower drilling rod (13) respectively.
5. the electromagnetic measurement while drilling system according to claim 4 based on offset well reception antenna, it is characterised in that：The letter
Number Acquisition Circuit includes pressure sensor, temperature sensor, the acceleration of gravity biography electrically connect with the signal processing circuit
Sensor and magnetoresistive transducer.
6. the electromagnetic measurement while drilling system according to claim 4 based on offset well reception antenna, it is characterised in that：The letter
Number process circuit includes the first single-chip microcomputer and D/A converting circuit, first single-chip microcomputer respectively with the signal acquisition circuit and
D/A converting circuit is electrically connected, and the D/A converting circuit is electrically connected with the radiating circuit.
7. the electromagnetic measurement while drilling system according to claim 3 based on offset well reception antenna, it is characterised in that：The neighbour
Well receiving unit (2) includes offset well receiver (21) and at least one elastic reception antenna (22), the offset well receiver (21)
Electrically connected by the armored cable (6) with the upper drilling rod (11), the elastic reception antenna (22) is arranged on the offset well
(5) in, and setting is contacted with the offset well (5) inwall, the offset well receiver (21) and the elastic reception antenna (22) are electric
Connection, the elastic reception antenna (22) and the radiating circuit wireless connection.
8. the electromagnetic measurement while drilling system according to claim 7 based on offset well reception antenna, it is characterised in that：The neighbour
Well receiver (21) includes pre-amplification circuit in sequential series, filter circuit, second amplifying circuit, A/D converter circuit and second
Single-chip microcomputer, the elastic reception antenna (22) electrically connects with the pre-amplification circuit, the second singlechip and the ground
Display terminal (3) is electrically connected.
9. the electromagnetic measurement while drilling system based on offset well reception antenna according to claim 7 or 8, it is characterised in that：Institute
Stating offset well receiving unit (2) also includes winch (23), and the winch (23) is arranged on above the import of the offset well (5), and institute
State that armored cable (6) is rich to be connected on the winch (23), and the offset well receiver (21) suspension is arranged on the armored cable
(6) it is located at one end in the offset well (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720104617.7U CN206545509U (en) | 2017-01-24 | 2017-01-24 | A kind of electromagnetic measurement while drilling system based on offset well reception antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720104617.7U CN206545509U (en) | 2017-01-24 | 2017-01-24 | A kind of electromagnetic measurement while drilling system based on offset well reception antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206545509U true CN206545509U (en) | 2017-10-10 |
Family
ID=59993949
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720104617.7U Expired - Fee Related CN206545509U (en) | 2017-01-24 | 2017-01-24 | A kind of electromagnetic measurement while drilling system based on offset well reception antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206545509U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106894813A (en) * | 2017-01-24 | 2017-06-27 | 中国地质大学（武汉） | A kind of electromagnetic measurement while drilling system and method based on offset well reception antenna |
-
2017
- 2017-01-24 CN CN201720104617.7U patent/CN206545509U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106894813A (en) * | 2017-01-24 | 2017-06-27 | 中国地质大学（武汉） | A kind of electromagnetic measurement while drilling system and method based on offset well reception antenna |
| CN106894813B (en) * | 2017-01-24 | 2023-08-11 | 中国地质大学（武汉） | Electromagnetic measurement while drilling system and method based on adjacent well receiving antenna |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171010 Termination date: 20220124 |