CN107178359A - A kind of coiled tubing real-time intelligent logging system with optical cable - Google Patents
A kind of coiled tubing real-time intelligent logging system with optical cable Download PDFInfo
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- CN107178359A CN107178359A CN201710511543.3A CN201710511543A CN107178359A CN 107178359 A CN107178359 A CN 107178359A CN 201710511543 A CN201710511543 A CN 201710511543A CN 107178359 A CN107178359 A CN 107178359A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 97
- 238000012545 processing Methods 0.000 claims abstract description 92
- 238000005259 measurement Methods 0.000 claims abstract description 40
- 239000003129 oil well Substances 0.000 claims abstract description 19
- 238000004891 communication Methods 0.000 claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 238000004458 analytical method Methods 0.000 claims abstract description 10
- 238000006243 chemical reaction Methods 0.000 claims description 38
- 230000003321 amplification Effects 0.000 claims description 23
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 23
- 230000005611 electricity Effects 0.000 claims description 10
- 238000000465 moulding Methods 0.000 claims 1
- 239000013307 optical fiber Substances 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 8
- 230000008054 signal transmission Effects 0.000 abstract description 3
- 230000000284 resting effect Effects 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 14
- 238000005516 engineering process Methods 0.000 description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 101100162020 Mesorhizobium japonicum (strain LMG 29417 / CECT 9101 / MAFF 303099) adc3 gene Proteins 0.000 description 3
- 101100434411 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) ADH1 gene Proteins 0.000 description 3
- 101150102866 adc1 gene Proteins 0.000 description 3
- 101150042711 adc2 gene Proteins 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
- E21B47/07—Temperature
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D25/00—Control of light, e.g. intensity, colour or phase
- G05D25/02—Control of light, e.g. intensity, colour or phase characterised by the use of electric means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mining & Mineral Resources (AREA)
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- Life Sciences & Earth Sciences (AREA)
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- Environmental & Geological Engineering (AREA)
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- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- General Physics & Mathematics (AREA)
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Abstract
The present invention relates to coiled tubing logging technique field, more particularly to a kind of coiled tubing real-time intelligent logging system with optical cable, including the coiled tubing optical cable assembly positioned at the data processing equipment on ground, the measurement apparatus in oil well and between data processing equipment and measurement apparatus, measurement apparatus includes logger carrier and the circuit assembly positioned at logger carrier inside, and circuit assembly includes power module, control module, communication interface module, signal acquisition and processing module, optical modulator module.Signal measured by measurement apparatus is converted into after optical signal by the optical modulator module in the present invention, the data processing equipment transmitted by optical cable or optical fiber to ground carries out calculating analysis, because the signal transmission rate of optical cable or optical fiber is fast, and the degree of accuracy is high, realize the real-time Transmission of downhole data, the staff resting on the ground is understood the environment in oil well in real time, work arrangements is made in time.
Description
Technical field
Surveyed the present invention relates to coiled tubing logging technique field, more particularly to a kind of coiled tubing real-time intelligent with optical cable
Well system.
Background technology
In coiled tubing logging technique, real-time collection and the transmission technology of downhole data are to improve coiled tubing well logging to imitate
The important means of rate, coiled tubing logging technique utilizes the various parameters in the logger measurement oil well of underground, temperature and pressure
Force parameter is as main downhole parameters, the data processing transferred data to after measurements using certain method on well
System, by the finishing analysis to data and comparison, can be converted into the parameter chart that can directly observe, be easy to underground ring
Border is judged, and then draws further work plan.
In the prior art, downhole data is measured by different types of sensor, including temperature sensor, pressure
Force snesor etc., due to being the environment of HTHP in oil well, existing more enterprise is by using high temperature resistant, high voltage bearing device
Part completes the measurement and transmission of data.The transmission technology of measurement signal is usually to be converted data using downhole data encoder
For acoustic signals, the transmission of wireless data is carried out using sound wave, recycling Well mouth sensor monitoring acoustic signals, decoded back are
Original construction data, is finally delivered to arrangement and analysis that data handling system carries out data, but acoustic signals are in transmitting procedure
In have certain decay, and the speed of transmission is slower, when logger is located at deeper position, it is necessary to the regular hour
Can transmit to well, until staff has gone through longer time when observing, therefore exist certain error with it is delayed
Property, the judgement of staff can be influenceed；Also the favourable transmission that data are carried out with cable, but the laser propagation effect of cable in the prior art
Also it is unsatisfactory.
The content of the invention
For problems of the prior art, the present invention provides a kind of coiled tubing real-time intelligent well logging system with optical cable
System.
A kind of coiled tubing real-time intelligent logging system with optical cable, including data processing equipment positioned at ground, be located at
Measurement apparatus in oil well and the coiled tubing optical cable assembly between data processing equipment and measurement apparatus, measurement apparatus
Transmitted after oil well intrinsic parameter is measured by coiled tubing optical cable assembly to data processing equipment and carry out calculating analysis, measurement apparatus
Including logger carrier and the circuit assembly positioned at logger carrier inside, circuit assembly includes power module, control
Module, communication interface module, signal acquisition and processing module, optical modulator module；Signal acquisition and processing module, optical modulator module
It is connected by communication interface module with control module, wherein：
Signal acquisition and processing module send the signal collected to control module after treatment, and control module is by phase
The signal answered is sent to optical modulator module, and optical modulator module is converted electrical signals to after optical signal, by coiled tubing optical cable assembly
Transmit to data processing equipment and carry out calculating analysis；
Coiled tubing optical cable assembly includes oil pipe and the optical cable inside oil pipe；
Optical modulator module include program-controlled voltage source, luminous tube and on-off circuit, wherein program-controlled voltage source, luminous tube, open
Powered-down road is sequentially connected；Program-controlled voltage source is connected by communication interface module with control module, control module control program-controlled voltage
The size of source output voltage；The signal output part of control module is connected with on-off circuit, control module controlling switch circuit it is logical
Light on and off state that is disconnected and then controlling luminous tube；Luminous tube is converted electrical signals to after optical signal by optical cable transmission to data processing dress
Put.
Further, signal acquisition and processing module include temperature signal collection and processing module, well depth signal acquisition and
Processing module is gathered and processing module with pressure signal, wherein：
Temperature signal collection and processing module, well depth signal acquisition and processing module and pressure signal collection and processing module
Temperature signal, well depth signal and pressure signal are sent to control module by communication interface module respectively.
Further, temperature signal collection and processing module include thermometer power supply, temperature sensor, temperature signal filtering
Circuit and the first analog to digital conversion circuit, wherein：
Temperature sensor, temperature signal filter circuit, the first analog to digital conversion circuit are sequentially connected, and thermometer power supply is connected on temperature
Spend between sensor and temperature signal filter circuit, the first analog to digital conversion circuit is connected with control module, temperature signal filtered electrical
The temperature signal of temperature sensor measurement is filtered and sent to the first analog to digital conversion circuit, the first analog to digital conversion circuit by road
Analog signal is converted into after data signal and sent to control module.
Further, well depth signal acquisition and processing module include magnetic position sensor, well depth signal amplification circuit, well depth
Signal filter circuit, the second analog to digital conversion circuit, wherein：
Well depth signal amplification circuit, well depth signal filter circuit, the second analog to digital conversion circuit are sequentially connected, magnetic orientation sensing
In device access well depth signal amplification circuit；After the well depth signal amplification that well depth signal amplification circuit measures magnetic position sensor by
Well depth signal filter circuit is filtered, then by the second analog to digital conversion circuit analog signal is converted into after data signal send to
Control module.
Further, pressure signal collection and processing module include pressure gauge power supply, pressure sensor, pressure signal amplification
Circuit, pressure signal filter circuit, the 3rd analog to digital conversion circuit, wherein：
Pressure gauge power supply, pressure sensor, pressure signal amplifying circuit, pressure signal filter circuit, the 3rd analog-to-digital conversion
Circuit is sequentially connected, and the pressure signal that pressure sensor is measured is after the amplification of pressure signal amplifying circuit by pressure signal filtered electrical
Road is filtered, then analog signal is converted into after data signal by the 3rd analog to digital conversion circuit sent to control module.
Further, it is other functional modules that power module, which is included in battery and seamless circuit, battery access seamless circuit,
Voltage or electric current are provided.
Further, in optical modulator module, on-off circuit includes resistance RaWith FET Qa, luminous tube is diode Da,
Wherein：
Resistance RaThe signal output part of one end link control module, other end connection FET QaG poles；Diode Da
It is connected on program-controlled voltage source and FET QaD poles between；FET QaS poles ground connection；
The signal output part of control module controls FET Q by its output signalaState, and then influence diode
DaLight on and off state, realize conversion of the electric signal to optical signal.
Further, on-off circuit also includes phase inverter Ua, FET Qb, resistance RbAnd resistance Rc, wherein：
Phase inverter UaInput link control module signal output part, the output end connection resistance R of phase inverterb, resistance
RbThe other end and FET QbG poles connection, resistance RcOne end is connected on the output end of program-controlled voltage source, and the other end is imitated with field
Should pipe QbD poles connection, FET QbS poles ground connection.
A kind of coiled tubing real-time intelligent logging system with optical cable of the present invention, has the advantages that：
1st, the electric signal measured by measurement apparatus is converted into after optical signal by optical modulator module, passes through optical cable or optical fiber
The data processing equipment transmitted to ground carries out calculating analysis, because the signal transmission rate of optical cable or optical fiber is fast, and the degree of accuracy
Height, realizes the real-time Transmission of downhole data, the staff resting on the ground is understood the environment in oil well in real time, and
When make work arrangements.
2nd, optical modulator module includes program-controlled voltage source, luminous tube and on-off circuit, control module control program-controlled voltage source
Output voltage size, and then control luminous tube luminous intensity, make measurement apparatus at different well depth positions, optical signal can be arrived
Up to ground and will not saturation.
3rd, signal acquisition and processing module include temperature signal collection and processing module, well depth signal acquisition and processing mould
Block, pressure signal collection and processing module, can measure temperature in oil well, pressure parameter, can also measure oil where measurement apparatus
Position in well.
4th, power module includes providing for other functional modules in battery and seamless circuit, battery access seamless circuit and met
It is required that voltage or electric current.
Brief description of the drawings
, below will be to embodiment or existing for the clearer explanation embodiment of the present invention or technical scheme of the prior art
There is the accompanying drawing used required in technology description to be briefly described, it is clear that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of composition frame chart of coiled tubing real-time intelligent logging system with optical cable of the present invention；
Fig. 2 is a kind of circuit assembly composition frame chart of coiled tubing real-time intelligent logging system with optical cable of the present invention；
Fig. 3 is a kind of optical modulator module circuit design of coiled tubing real-time intelligent logging system with optical cable of the present invention
Scheme (one)；
Fig. 4 is a kind of optical modulator module circuit design of coiled tubing real-time intelligent logging system with optical cable of the present invention
Scheme (two)；
Temperature signal collections and processing of the Fig. 5 for a kind of coiled tubing real-time intelligent logging system with optical cable of the present invention
The circuit design drawing of module；
Well depth signal acquisitions and processing of the Fig. 6 for a kind of coiled tubing real-time intelligent logging system with optical cable of the present invention
The circuit design drawing of module；
Fig. 7 is gathered and handled for a kind of pressure signal of coiled tubing real-time intelligent logging system with optical cable of the present invention
The circuit design drawing of module；
Fig. 8 is part of module in a kind of circuit assembly of coiled tubing real-time intelligent logging system with optical cable of the present invention
Circuit connection diagram.
Embodiment
Below in conjunction with the accompanying drawing in the present invention, clear, complete retouch is carried out to the technical scheme in the embodiment of the present invention
State, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on the present invention
In embodiment, all other reality that those skilled in the art is obtained on the premise of creative work is not made
Example is applied, protection scope of the present invention is belonged to.
A kind of coiled tubing real-time intelligent logging system with optical cable of first embodiment of the invention, including positioned at ground
Data processing equipment, the measurement apparatus in oil well and the continuous oil between data processing equipment and measurement apparatus
Pipe optical cable assembly, the effect of measurement apparatus is to measure the parameters in oil well, such as temperature parameter, pressure parameter, measurement
Device fills the data processing that the data measured are transferred on ground in the form of optical signal by coiled tubing optical cable assembly
Put, the data being collected into are carried out statistical analysis or calculating by data processing equipment, draw the parameter in corresponding oil well.Continuously
Oil pipe optical cable assembly includes oil pipe and the optical cable inside oil pipe, and continuous oil pipe operation is most commonly seen in modern technologies
Oil well operation mode, its operation is simple, with low cost, can Operating Pressure, it is small to formation damage many advantages, such as obtained more
Professional's accreditation, the present invention is not specifically limited to the concrete structure design of coiled tubing, but requires that its internal sets light
Cable, using optical cable transmission information, not only the degree of accuracy is high, and transmission rate is fast, realizes the real-time Transmission of data, makes to be located at ground
On staff can understand the environment in oil well in real time, work arrangements is made in time.
Measurement apparatus includes logger carrier and the circuit assembly positioned at logger carrier inside, it is preferred that be
Prevent circuit assembly from being damaged by high-temperature, high pressure fluid, logger carrier is designed as two-way pipeline, and using holding
The stronger material of pressure energy power is made, and one of passage arranges circuit assembly, and another passage is dedicated as flow of fluid and led to
Road, makes flow of fluid not interfere with each other with well intrinsic parameter measurement.
Specifically, the circuit assembly for the present embodiment, including power module, control module, communication interface mould as shown in Figure 1
Block, signal acquisition and processing module, the also optical modulator module for converting electrical signals to optical signal；Signal acquisition and processing
Module, optical modulator module are connected by communication interface module with control module；Power module respectively with signal acquisition and processing
Module, control module, optical modulator module electrical connection, are that signal acquisition and processing module, control module, optical modulator module are powered.
Signal acquisition and processing module send the signal collected to control module, control by communication interface module after treatment
Module sends corresponding signal to optical modulator module, and optical modulator module is converted electrical signals to after optical signal, by optical cable transmission
Calculating analysis is carried out to data processing equipment.It is preferred that, it is various types of that control module can select MCU, ARM, DSP, CPLD, FPGA etc.
The chip with control action of type；Communication interface module selects RS485 buses and/or CAN, can meet different devices
Part connection requirement.Power module is included in battery and seamless circuit, battery access seamless circuit, and symbol is provided for other functional modules
The battery closed in desired voltage or electric current, power module is preferably high-capacity lithium battery, and seamless circuit passes through special parameter
Electrical equipment be attached, output size wait magnitude of voltage or current value simultaneously be linked into other functional modules.This hair
The bright The concrete specification to battery is not limited, and seamless circuit is designed according to use environment, for art technology
It is relatively easy to design for personnel to draw, therefore the present invention is also not specifically limited.
Specifically, optical modulator module includes program-controlled voltage source, luminous tube and on-off circuit, wherein program-controlled voltage source, hair
Light pipe, on-off circuit are sequentially connected；Program-controlled voltage source is connected by communication interface module with control module, control module control journey
Control the size of voltage source output voltage；The signal output part of control module is connected with on-off circuit, and control module is defeated by signal
Go out the break-make of the signal control switch circuit of end output and then control the light on and off state of luminous tube；By the light on and off for controlling luminous tube
State realizes conversion of the electric signal to optical signal, and optical cable or optical fiber are coupled completely with luminous tube, make optical signal in optical cable or
Transmitted in optical fiber, until the data processing equipment on well is received.Program-controlled voltage source is on the basis of electric energy is provided for luminous tube, more
It is the size that its output voltage or electric current are controlled by control module, when electric current is bigger than normal, the light that luminous tube is sent is stronger,
When electric current is less than normal, the light that luminous tube is sent is weaker, adjustment light intensity make optical signal reach data processing equipment when both will not mistake
In saturation, also will not overdamping, the power of light determines that the present embodiment is not specifically limited all in accordance with use environment.It is preferred that
, on-off circuit is realized by FET, the voltage of the effect of signals luminous tube one end exported by signal output part
Value, when the two ends pressure difference of luminous tube is bright for timing, does not work when the two ends pressure difference of luminous tube is negative.It is preferred that, luminous tube is selected
Diode, to meet telecommunication, diode selects 1310nm or 1550nm laser diodes, by diode and the direct coupling of optical fiber
Close, energy loss is reduced as far as possible.
Specifically, being illustrated in figure 2 second embodiment of the present invention, on the basis of a upper embodiment, signal acquisition
And processing module includes temperature signal collection and processing module, well depth signal acquisition and processing module and pressure signal collection and located
Manage module, wherein temperature signal collection and processing module, well depth signal acquisition and processing module, pressure signal collection and processing mould
Block is connected by communication interface module with control module respectively；Power module respectively with temperature signal collection and processing module, well
Deep signal acquisition and processing module, pressure signal collection and processing module connection, are temperature signal collection and processing module, well depth
Signal acquisition and processing module, pressure signal collection and processing module are powered.It is preferred that, signal acquisition and processing module are included extremely
Few two temperature signal collections and processing module and two pressure signal collections and processing module, are measured inside measurement apparatus respectively
With outside temperature, pressure value.
Specifically, temperature signal collection and processing module include thermometer power supply, temperature sensor, temperature signal filtered electrical
Road and the first analog to digital conversion circuit, wherein temperature sensor, temperature signal filter circuit, the first analog to digital conversion circuit connect successively
Connect, thermometer power supply is connected between temperature sensor and temperature signal filter circuit, the first analog to digital conversion circuit and control module
The temperature signal of temperature sensor measurement is filtered and sent to the first analog-to-digital conversion electricity by connection, temperature signal filter circuit
Analog signal is converted into after data signal and sent to control module by road, the first analog to digital conversion circuit.
Specifically, well depth signal acquisition and processing module include magnetic position sensor, well depth signal amplification circuit, well depth letter
Number filter circuit, the second analog to digital conversion circuit, wherein well depth signal amplification circuit, well depth signal filter circuit, the second modulus turn
Change circuit to be sequentially connected, in magnetic position sensor access well depth signal amplification circuit；Well depth signal amplification circuit passes magnetic orientation
It is filtered, then will be simulated by the second analog to digital conversion circuit by well depth signal filter circuit after the well depth signal amplification of sensor measurement
Signal, which is converted into after data signal, to be sent to control module.Well depth signal acquisition and processing module are according to magnetic position sensor because of oil
The principle that well thickness of shaft wall changes and produces induced potential draws well depth data.
Specifically, pressure signal collection and processing module include pressure gauge power supply, pressure sensor, pressure signal amplification electricity
Road, pressure signal filter circuit, the 3rd analog to digital conversion circuit, wherein pressure gauge power supply, pressure sensor, pressure signal amplification electricity
Road, pressure signal filter circuit, the 3rd analog to digital conversion circuit are sequentially connected, and the pressure signal of pressure sensor measurement is believed through pressure
It is filtered, then is converted analog signal by pressure signal filter circuit after the amplification of number amplifying circuit by the 3rd analog to digital conversion circuit
To be sent after data signal to control module.
Specifically, being illustrated in figure 3 in the 3rd embodiment of the present invention, optical modulator module, on-off circuit includes resistance
RaWith FET Qa, luminous tube is diode Da, wherein resistance RaThe signal output part of one end link control module, the other end
Connect FET QaG poles；Diode DaIt is connected on program-controlled voltage source and FET QaD poles between；FET QaS
Pole is grounded；The signal output part of control module controls FET Q by its output signalaState, and then influence diode Da
Light on and off state, realize conversion of the electric signal to optical signal.
Program-controlled voltage source is diode DaPositive pole adjustable magnitude of voltage is provided, the magnitude of voltage is realized by control module
Control action, it is preferred that program-controlled voltage source includes digital regulation resistance, the data signal that digital regulation resistance is exported according to control module
To control its simulation output, then the electrical equipment for passing through certain way connection, realize that the magnitude of voltage of whole program-controlled voltage source is defeated
Go out within the scope of certain, the present embodiment to the connected mode and parameter of digital regulation resistance and its periphery electrical equipment not
Limit, be easier to realize to those skilled in the art.
Specific the 4th embodiment for being illustrated in figure 4 the present invention, on the basis of the 3rd embodiment, on-off circuit
Also include phase inverter Ua, FET Qb, resistance RbAnd resistance Rc, wherein phase inverter UaInput link control module letter
Number output end, the output end connection resistance R of phase inverterb, resistance RbThe other end and FET QbG poles connection, resistance RcOne
Terminate at the output end of program-controlled voltage source, the other end and FET QbD poles connection, FET QbS poles ground connection.This reality
Example is applied for the 3rd embodiment, the loop of addition can effectively reduce diode DaThe caused voltage wave in light on and off
It is dynamic, it is ensured that the stable operation of optical modulator module.
For the design content of the present invention, the 5th embodiment is the signal acquisition and processing designed according to present invention
Module concrete implementation method, as shown in Figures 5 to 7.
Fig. 5 is temperature signal collection and the circuit design drawing of processing module, specifically, temperature signal filter circuit includes electricity
Hinder R11, resistance R12, electric capacity C11, electric capacity C12And operational amplifier U11；First analog to digital conversion circuit includes resistance R13, the first mould
Number converter ADC1；Wherein：Resistance R in temperature signal filter circuit11With resistance R12Connection, resistance R11The other end and temperature
Sensor is connected, resistance R12The other end and operational amplifier U11In-phase input end connection；Electric capacity C11One end access resistance R11
With resistance R12Between, it is another to terminate at operational amplifier U11Output end；Electric capacity C12One end is connected on operational amplifier U11Same phase
Input, other end ground connection；Operational amplifier U11Inverting input be connected with its output end；It is electric in first analog to digital conversion circuit
Hinder R13One end and operational amplifier U11Output end connection, the other end is connected with the first analog-digital converter ADC1 input, the
One analog-digital converter ADC1 output end is connected with control module.Temperature sensor can select more applicable thermal resistance and be surveyed
Temperature, it is preferred that access platinum resistance temperature sensor in circuit, due to platinum resistance thermometer sensor, small volume, precision is high, and temperature-measuring range is wide,
Repeatability is good, is particularly suitable for use in the temperature survey in oil well.Thermometer power supply is the voltage or electric current of power module output, its
Concrete numerical value each device parameters in physical circuit are determined, it is preferred that by the function of thermometer Power Management Design overcurrent protection, electric current
Size is not produced self-heating with temperature sensor and is limited.The design of temperature signal filter circuit can effectively filter out high-frequency noise, it is ensured that
The acquisition precision of temperature data.Whole circuit can make temperature sensor short circuit when there are abnormal conditions, can with high
By property, it is especially suitable for subsurface environment and uses.
When the present invention includes two temperature signal collections and processing module, it may include two groups of the present embodiment are measured respectively
With outside temperature inside measurement apparatus, then it is respectively sent to temperature signal filter circuit；To save the space of measurement apparatus,
Can will two temperature sensors it is in parallel after by any one temperature sensor of the connection of analog switch selectivity, then will be measured
Temperature signal send to temperature signal filter circuit.
Fig. 6 is the circuit design drawing of well depth signal acquisition and processing module, specifically, well depth signal amplification circuit includes electricity
Hinder R21, resistance R22, resistance R23, resistance R24, electric capacity C21, electric capacity C22, operational amplifier U21、U22；Well depth signal filter circuit bag
Include resistance R25With electric capacity C23；Second analog to digital conversion circuit includes the second analog-digital converter ADC2；Wherein well depth signal amplification circuit
In, resistance R21With resistance R22It is connected respectively with two lead-out terminals of magnetic position sensor, resistance R21The other end access computing
Amplifier U21Inverting input, resistance R22Other end access operational amplifier U21In-phase input end；Resistance R23With electric capacity
C21Parallel connection, its one end access operational amplifier U21Inverting input, other end access operational amplifier U21Output end；Electricity
Hinder R24With electric capacity C22Parallel connection, its one end access operational amplifier U21In-phase input end, it is another to terminate at operational amplifier U22's
Inverting input；Operational amplifier U22Homophase input termination positive voltage, its reverse input end is connected with its output end；Well depth is believed
In number filter circuit, resistance R25One end and operational amplifier U21Output end connection, the other end access the second analog-digital converter
ADC2 input；Electric capacity C23One end access the second analog-digital converter ADC2 input, the other end ground connection；Second modulus turns
The output end Access Control module of parallel operation.Magnetic position sensor includes magnet steel and coil, and coil in measurement apparatus due to moving
During, due to the thickness change of oil-well wall sleeve pipe, so as to influence the induced potential of coil, then produce well depth signal.
Fig. 7 is the circuit design drawing of pressure signal collection and processing module, specifically, pressure signal amplifying circuit includes electricity
Hinder R31, resistance R32, resistance R33, electric capacity C31, electric capacity C32, electric capacity C33, electric capacity C34And instrument amplifier U31；Pressure signal is filtered
Wave circuit includes resistance R34, resistance R35, electric capacity C35, electric capacity C36With operational amplifier U32；3rd analog to digital conversion circuit includes electricity
Hinder R36With the 3rd analog-digital converter ADC3；Wherein：Resistance R31With resistance R32Two output ends with pressure sensor connect respectively
Connect, resistance R31Other end access instrument amplifier U31Inverting input, resistance R32Other end access instrument amplifier U31
In-phase input end；Electric capacity C31One end access instrument amplifier U31Inverting input, the other end ground connection；Electric capacity C32Access instrument
Table amplifier U31In-phase input end, the other end ground connection；Electric capacity C33Two ends are respectively connected to instrument amplifier U31In-phase input end
With inverting input；Resistance R33One end and instrument amplifier U31Output end connection, the other end and resistance R34Connection；Electric capacity C34
One end is grounded, another to terminate at resistance R33With resistance R34Between；Resistance R34One end and resistance R33Connection, the other end and resistance R35
Connection, resistance R35Other end access operational amplifier U32In-phase input end；Resistance C35One end access resistance R34With resistance
R33Between, the other end and operational amplifier U32Output end connection；Electric capacity C36One end is grounded, other end access operational amplifier
U32Normal phase input end；Operational amplifier U32Inverting input be connected with its output end；Resistance R36It is connected to operational amplifier
U32Output end and the 3rd analog-digital converter ADC3 input between, the 3rd analog-digital converter ADC3 output end and control mould
Block is connected.Pressure gauge power supply is identical with thermometer power principle, does not repeat herein.It is preferred that, pressure sensor in the present invention
From strain pressure transducer, strain pressure transducer has larger measurement range, and with good dynamic property,
Suitable for fast-changing pressure measxurement.In pressure signal amplifying circuit, pressure signal is by instrument amplifier U31Regulate signal increases
Benefit, is applicable to different types of pressure sensor, then effectively filter out high-frequency noise by pressure signal filter circuit, it is ensured that
The precision of pressure signal.
Temperature signal collection and processing module, well depth signal acquisition and processing module, pressure signal are gathered and located above
The circuit design for managing module is separate, and the present invention can select any one in implementation process, or any several is combined
Realize, should not be construed as the restriction to the spirit and scope of the invention.
Such as six embodiments of the Fig. 8 for the present invention, the 6th embodiment is implemented with the 3rd embodiment and the 5th
Based on the implementation of example, by between optical modulator module, information gathering and processing module, communication interface module, control module
Relation disclosed.
The whole coiled tubing real-time intelligent logging system with optical cable, optical modulator module is by the telecommunications measured by measurement apparatus
Number it is converted into after optical signal, the data processing equipment transmitted by optical cable or optical fiber to ground carries out calculating analysis, due to
The signal transmission rate of optical cable or optical fiber is fast, and the degree of accuracy is high, realizes the real-time Transmission of downhole data, makes what is rest on the ground
Staff can understand the environment in oil well in real time, and work arrangements is made in time；In optical modulator module, control module control journey
The output voltage size of voltage source is controlled, and then controls the luminous intensity of luminous tube, makes measurement apparatus at different well depth positions, light letter
Number it can reach ground and will not saturation；Signal acquisition and processing module include temperature signal collection and processing module, well depth letter
Number collection and processing module, pressure signal collection and processing module, can measure temperature in oil well, pressure parameter, can also measure
Position where measurement apparatus in oil well；It is other that power module, which is included in battery and seamless circuit, battery access seamless circuit,
Functional module provides satisfactory voltage or electric current.
The present invention is further described by specific embodiment above, it should be understood that, here specifically
Description, should not be construed as the restriction to the spirit and scope of the invention, and one of ordinary skilled in the art is reading this explanation
The various modifications made after book to above-described embodiment, belong to the scope that the present invention is protected.
Claims (8)
1. a kind of coiled tubing real-time intelligent logging system with optical cable, including data processing equipment positioned at ground, positioned at oil
Measurement apparatus in well and the coiled tubing optical cable assembly between the data processing equipment and the measurement apparatus, institute
State after measurement apparatus measures oil well intrinsic parameter and transmit to the data processing equipment by the coiled tubing optical cable assembly
Row calculates analysis, and the measurement apparatus includes logger carrier and the circuit assembly positioned at logger carrier inside, its
It is characterised by, the circuit assembly includes power module, control module, communication interface module, signal acquisition and processing module, light
Modulation module；The signal acquisition and processing module, the optical modulator module pass through the communication interface module and the control
Molding block is connected, wherein：
The signal acquisition and processing module send the signal collected to the control module, the control after treatment
Module sends corresponding signal to the optical modulator module, and the optical modulator module is converted electrical signals to after optical signal, by
The coiled tubing optical cable assembly transmits to the data processing equipment and carries out calculating analysis；
The coiled tubing optical cable assembly includes oil pipe and the optical cable being placed in inside oil pipe；
The optical modulator module includes program-controlled voltage source, luminous tube and on-off circuit, wherein the program-controlled voltage source, the hair
Light pipe, the on-off circuit are sequentially connected；The program-controlled voltage source is connected by the communication interface module and the control module
Connect, the control module controls the size of the program-controlled voltage source output voltage；The signal output part of the control module and institute
On-off circuit connection is stated, the control module controls the break-make of the on-off circuit and then controls the light on and off state of luminous tube；Institute
Luminous tube is stated to convert electrical signals to after optical signal by the optical cable transmission to the data processing equipment.
2. a kind of coiled tubing real-time intelligent logging system with optical cable as claimed in claim 1, it is characterised in that the letter
Number collection and processing module includes temperature signal collection and processing module, well depth signal acquisition and processing module and pressure signal is adopted
Collection and processing module, wherein：
The temperature signal collection and processing module, the well depth signal acquisition and processing module gathered with the pressure signal and
Processing module is respectively sent temperature signal, well depth signal and pressure signal to the control by the communication interface module
Module.
3. a kind of coiled tubing real-time intelligent logging system with optical cable as claimed in claim 2, it is characterised in that the temperature
Signal acquisition and processing module is spent including thermometer power supply, temperature sensor, temperature signal filter circuit and the first modulus to turn
Circuit is changed, wherein：
The temperature sensor, the temperature signal filter circuit, first analog to digital conversion circuit are sequentially connected, the temperature
Meter power supply be connected between the temperature sensor and the temperature signal filter circuit, first analog to digital conversion circuit with it is described
Control module is connected, and the temperature signal of the temperature sensor measurement is filtered and sent by the temperature signal filter circuit
To first analog to digital conversion circuit, analog signal is converted into after data signal by first analog to digital conversion circuit to be sent to institute
State control module.
4. a kind of coiled tubing real-time intelligent logging system with optical cable as claimed in claim 2, it is characterised in that the well
Deep signal acquisition and processing module include magnetic position sensor, well depth signal amplification circuit, well depth signal filter circuit, the second mould
Number change-over circuit, wherein：
The well depth signal amplification circuit, the well depth signal filter circuit, second analog to digital conversion circuit are sequentially connected, institute
Magnetic position sensor is stated to access in the well depth signal amplification circuit；The well depth signal amplification circuit senses the magnetic orientation
It is filtered after the well depth signal amplification of device measurement by the well depth signal filter circuit, then by second analog to digital conversion circuit
Analog signal is converted into after data signal and sent to the control module.
5. a kind of coiled tubing real-time intelligent logging system with optical cable as claimed in claim 2, it is characterised in that the pressure
Force signal is gathered and processing module includes pressure gauge power supply, pressure sensor, pressure signal amplifying circuit, pressure signal filtered electrical
Road, the 3rd analog to digital conversion circuit, wherein：
The pressure gauge power supply, the pressure sensor, the pressure signal amplifying circuit, the pressure signal filter circuit,
3rd analog to digital conversion circuit is sequentially connected, and the pressure signal of the pressure sensor measurement amplifies electricity through the pressure signal
It is filtered, then is converted analog signal by the pressure signal filter circuit after the amplification of road by the 3rd analog to digital conversion circuit
To be sent after data signal to the control module.
6. a kind of coiled tubing real-time intelligent logging system with optical cable as claimed in claim 1, it is characterised in that the electricity
Source module includes battery and seamless circuit, the battery access in the seamless circuit for other functional modules provide voltage or
Electric current.
7. a kind of coiled tubing real-time intelligent logging system with optical cable as claimed in claim 1, it is characterised in that the light
In modulation module, the on-off circuit includes resistance RaWith FET Qa, the luminous tube is diode Da, wherein：
The resistance RaOne end connects the signal output part of the control module, other end connection FET QaG poles；It is described
Diode DaIt is connected on the program-controlled voltage source and the FET QaD poles between；The FET QaS poles ground connection；
The signal output part of the control module controls the FET Q by its output signalaState, and then influence institute
State diode DaLight on and off state, realize conversion of the electric signal to optical signal.
8. a kind of coiled tubing real-time intelligent logging system with optical cable as claimed in claim 7, it is characterised in that described to open
Powered-down road also includes phase inverter Ua, FET Qb, resistance RbAnd resistance Rc, wherein：
The phase inverter UaInput connect the signal output part of the control module, the output end connection institute of the phase inverter
State resistance Rb, the resistance RbThe other end and the FET QbG poles connection, the resistance RcOne end is connected on the journey
Control the output end of voltage source, the other end and the FET QbD poles connection, the FET QbS poles ground connection.
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| CN201710511543.3A CN107178359B (en) | 2017-06-28 | 2017-06-28 | Coiled tubing real-time intelligent logging system with optical cable |
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|---|---|---|---|
| CN201710511543.3A CN107178359B (en) | 2017-06-28 | 2017-06-28 | Coiled tubing real-time intelligent logging system with optical cable |
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| CN107178359B CN107178359B (en) | 2023-10-24 |
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| CN109119196A (en) * | 2018-09-26 | 2019-01-01 | 广东迅维科技发展有限公司 | A kind of optoelectronic composite cable and coiled tubing logging system |
| CN109267991A (en) * | 2018-10-10 | 2019-01-25 | 北京大德广源石油技术服务有限公司 | Oil/gas well output and injection monitoring system |
| CN110630252A (en) * | 2018-06-21 | 2019-12-31 | 中国石油化工股份有限公司 | Measurement while drilling system and method for coiled tubing drilling |
| CN111155985A (en) * | 2019-12-31 | 2020-05-15 | 陕西明泰电子科技发展有限公司 | Communication method used in drill rod and drilling tool communication device |
| CN111622742A (en) * | 2020-07-14 | 2020-09-04 | 中国石油大学(华东) | Fluid self-generating parameter detection and communication system |
| CN112727394A (en) * | 2019-10-28 | 2021-04-30 | 中国石油化工股份有限公司 | Coiled tubing hydraulic workover string and method |
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