CN205823262U - A kind of temperature, pressure self-balancing measure oil gas composition with bore spectrometer device - Google Patents
A kind of temperature, pressure self-balancing measure oil gas composition with bore spectrometer device Download PDFInfo
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- CN205823262U CN205823262U CN201620566524.1U CN201620566524U CN205823262U CN 205823262 U CN205823262 U CN 205823262U CN 201620566524 U CN201620566524 U CN 201620566524U CN 205823262 U CN205823262 U CN 205823262U
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Abstract
This utility model relate to a kind of temperature, pressure self-balancing measure oil gas composition with bore spectrometer device.Including the parabolic mirror that light source is collimated, reflecting mirror arrange in turn below sampling air chamber and reference gas chamber, with four individual thermoelectric unit and the detector of temperature sensor, can be with the balance air chamber of autobalance reference gas chamber with sampling air chamber pressure, Balance Air is indoor with sliding plunger.This utility model device has the advantages that analysis speed is fast, can complete analysis task in 5 seconds；Analysis cost is low, will not consume any sample during analysis；Can on-line analysis, the result that detection is analyzed can pass to ground in real time, have a huge practical value, improves the efficiency of oil gas field detection；Operation security purpose hydrogen sulfide qualitative detection is added in addition to oil and gas detection；High pressure resistant high temperature, size is little, low in energy consumption, it is simple to be integrated into in rig.
Description
(1) technical field
This utility model relates to, with boring spectrometer system, being specifically related to the measurement oil gas composition of a kind of temperature, pressure self-balancing
With bore spectrometer device.
(2) background technology
During exploitation oil-gas reservoir, the detection to oil gas composition is concentrated mainly on well logging and two links of well logging.Well logging
Main by detecting drilling fluid, well logging is then mainly after drilling well completes formation fluid sampling Detection.Well logging aspect,
The R. DiFoggio of Baker Hughes company uses the method for transmission curves, it is thus achieved that flow through the mud in sampling conduit cross section
Mixture from 400 nanometers to the two dimensional image of 2000 nanometer range, can judge the most whether contain oil gas intuitively.
The shortcoming of said method essentially consists in:
1. said method all cannot accomplish measuring while drilling
2. said method cannot be carried out the on-line analysis of oil gas composition
Because measuring while drilling process is carried out under high temperature and high pressure environment, with the presence of multiple external disturbance in measurement, with
Time to measure equipment stability, the requirement that accuracy and size will be at a relatively high.Spectral technique can be good at place
The spectral interference of reason exterior materials, detects oil gas composition exactly, is the optimum selection of the measurement while drilling of oil gas composition.With brill
Detect S. Csutak that one of existing patent is Baker Hughes at measurement while drilling based on Raman scattering disclosed in 2011
Scheme, the program uses far QCL to be pumping source and a kind of nitride semiconductor light source.Shortcoming is main
Show:
1. peripheral matched equipment is many, and cross section is big.
2. QCL cost is high, and power consumption is big.
3. QCL generally uses the far infrared light source of more than wavelength 5um, and the Raman scattering of generation is wavelength
Longer far infrared signal, the more difficult detection of optical system.
Spectral technique based on laser can with fast and accurate measurement, but light source laser used by near-infrared and middle-infrared band
The maximum operating temperature of diode and detector is at 60-80 DEG C, it is impossible to meet the hot environment of measuring while drilling.
(3) summary of the invention
Technical problem to be solved in the utility model be to provide a kind of measure oil gas composition with bore spectrometer device.Dress
Put and specifically include that light source, air chamber, filter plate, detector, Circuits System and balance air chamber.
This utility model is achieved by the following technical solution:
A kind of temperature, pressure self-balancing measure oil gas composition with bore spectrometer device, including what light source was collimated
Parabolic mirror, it is characterized in that reflecting mirror arranges sampling air chamber and reference gas chamber, in turn below with four independences
Thermoelectric unit and the detector of temperature sensor, can be flat with the balance air chamber of autobalance reference gas chamber with sampling air chamber pressure
With sliding plunger in weighing apparatus air chamber.
Temperature, pressure self-balancing of the present utility model measure oil gas composition with bore spectrometer device, light source is work temperature
Degree design blackbody radiation source more than 450 DEG C.
Temperature, pressure self-balancing of the present utility model measure oil gas composition with boring spectrometer device, sampling air chamber and ginseng
There are four passages in examining the cavity of air chamber, connect with balance air chamber both sides respectively, it is ensured that associated channel pressure is identical, detector strip
There are four passages and corresponding four individual thermoelectric detectors.
Detector carries internal critesistor, and each passage of detector respectively joins a filter plate and transmission window, detection
Device is arranged on semiconductor chilling plate.Detector is provided below semiconductor chilling plate.
Temperature, pressure self-balancing of the present utility model measure oil gas composition with boring spectrometer device, reference channel is with flat
The connection of weighing apparatus air chamber side, passage to be detected connects with balance air chamber opposite side.
Temperature, pressure self-balancing of the present utility model measure oil gas composition with bore spectrometer device, parabolic reflector
Mirror, sampling air chamber are tightly connected with reference gas chamber, mounting seat and balance air chamber.
Temperature, pressure self-balancing of the present utility model measure oil gas composition with bore spectrometer device, Balance Air indoor are put
The sliding plunger that sealing is good, autobalance reference gas chamber and the air pressure of sampling air chamber.
Temperature, pressure self-balancing of the present utility model measure oil gas composition with bore spectrometer device, system use phase-locked
The Weak Signal Processing technology amplified, to realize reducing the effect of flicker noise (1/f noise).Driving voltage is applied low frequency side
Ripple modulated signal, and to detector by same frequency demodulation.
Based on above-mentioned a kind of measuring method measuring oil gas composition with brill spectrometer device, comprise the following steps:
(1) room temperature normal pressure system detection: determine the hardware designs of system at room temperature, at a normal, circuit, light path can normal works
Make；
(2) control to drive electric current, radiation: the thermosensitive resistance measurement ambient temperature carried by detector controls light source 1
Driving electric current so that light source all the time according to set spectral pattern radiation；
(3) the temperature inspection of spectrogrph: progressively heat up, checks that can circuit, light path normally work, confirms high workload temperature
Degree；
(4) the high pressure inspection of spectrogrph: progressively pressurize, checks that can circuit, light path normally work, and inspection system is not let out
Dew.Confirm high workload pressure；
(5) the normal temperature and pressure calibration of spectrogrph: at R and S1, S2 passage by same gas, mixed such as methane and nitrogen
Close gas, confirm detector sensitivity and investigative range, and scope linear response；
(6) assessment: the spectrogrph through above-mentioned inspection with calibration carries out system test by simulated environment test and assesses it
Performance.
The utility model has the advantage of:
(1) analyze speed fast, analysis task can be completed in 5 seconds；
(2) analysis cost is low, will not consume any sample during analysis；
(3) can on-line analysis, detection analyze result can pass to ground in real time, there is huge practical value, significantly
Improve the efficiency of oil gas field detection；
(4) high pressure resistant high temperature, size is little, low in energy consumption, it is simple to be integrated into in rig；
Innovation of the present utility model is:
1. use infrared light supply based on thermoradiation efficiency, and pyroelectric detector, natural operating temperature range width.
2., by the built-in thermosensitive resistance measurement ambient temperature of detector, test according to the temperature current of simulated environment and close
System, controls the driving electric current of light source, makes it stable in a temperature, and then keep stable spectral distribution.
3. system arranges two passage S1 and S2 to be measured, by selecting filter plate, it is possible to achieve a passage is to oil gas composition
(methane) detection by quantitative, another passage is to safe gas (H2S) qualitative detection.
4. system is provided with reference gas chamber, selects the gaseous species filled in reference gas chamber (such as detection first according to object gas
Alkane, then fill the methane gas of ten atmospheric pressure 1% concentration), ensure that passage to be measured and reference channel are in by balance air chamber same
Temperature is with the environment of pressure, it is not necessary to carry out methane spectra in the compensation measuring deformation of drifting about under environment.
5. by the size of design balance air chamber, it is possible to obtain predetermined with the spectroanalysis instrument boring pressure operating range.
(4) accompanying drawing explanation
Below in conjunction with the accompanying drawings this utility model is further described.
Fig. 1 is that this utility model is with the schematic diagram boring spectrogrph；
Fig. 2 is Balance Air cell structure figure of the present utility model；
Fig. 3 is the cavity body structure schematic diagram of sampling air chamber of the present utility model and reference gas chamber；
In figure: 1 is light source；2 is reflecting mirror;3 is cavity；4 is detector；5 is semiconductor chilling plate；6 mounting seat A；7
For balance air chamber；8 is sliding plunger；9 is mounting seat B.
(5) detailed description of the invention
Accompanying drawing is a kind of specific embodiment of the present utility model.This embodiment includes collimating the luminous point of light source 1
Parabolic mirror 2, light source 1 is arranged in parabolic mirror 2, and its luminous point is positioned in the focus of parabolic mirror 2,
The parallel light outgoing sent realizes collimation.Cavity 3 and the parabolic mirror 2 of air chamber, balance air chamber 7 and mounting seat 6,9 are close
Envelope connects, and the passage two ends of gas, equipped with projection window, carry out Seal Design.Have in the cavity 3 of sampling air chamber and reference gas chamber
Four passages, reference channel connects with balance air chamber 7 both sides respectively with sampling channel, it is ensured that associated channel pressure is identical.Detection
Device 4 respectively joins a filter plate and transmission window with four-way and four individual thermoelectric detectors, each passage, and detector 4 is pacified
It is contained on semiconductor chilling plate 5.The luminous point of light source 1 and detector 4 all pass through thermal insulation layer and install fixing, it is to avoid with ring around
Border directly contacts.Mounting seat A6 is the mounting seat of the parts such as cooling piece, and mounting seat B9 is the mounting seat of analyser.Light
Source collimating module i.e. parabolic mirror 2, the cavity 3 of air chamber and installation module i.e. mounting seat 6,9 all use coefficient of thermal expansion little,
The material that mechanical strength is high, such as rustless steel, aluminium alloy or other alloy material.
In the present embodiment, light source 1 is chosen as black body radiation light source.Two signalling channels S1, S2 and reference channel λ are with brill
Pressure, in neighbour reference channel R be then 10 atmospheric pressure 1% trace methane gas.A kind of alternative heat radiation
Source, such as U.S.'s HawkEye Technology company IR series of IR light source, design work temperature more than 450 DEG C.This application
Target temperature is at 575 DEG C, and power consumption is about 500 mW, 10000 hours working times (more than 14 months).This light source 1 can use
The impulse modulation of tens hertz, is used in combination with thermopile detector, uses the Weak Signal Processing technology of phase-locked amplification, at this
The effect of flicker noise (1/f noise) can be reduced in modulating frequency.Parabolic mirror 2 can be by complete for black body radiation light source
Solid angle transmitting collimates propagates in a direction, and the parallel transmission distance after collimation is 50-75 millimeter.
This example needs by the temperature stabilization of radiation source at 575 DEG C, thus ensure the stability of measurement result.This patent is sent out
Understand a kind of method, utilize the ambient temperature of the built-in thermosensitive resistance measurement air chamber of detector 4, control the driving of light source 1 with this
Electric current.By laboratory method, control source temperature all the time, at 575 DEG C, to record corresponding ambient temperature TRWith driving electric current
I, draws experiment form, and go forward side by side line function matching i.e. I=f(TR).When ambient temperature changes, the driving electric current phase of light source
Should change, so that the temperature stabilization of radiation source is on 575 DEG C, and then the spectral distribution of radiation source is gathered in 3 to 4 microns
The strongly absorbing region of the organic gas such as methane, maintains they enough emissive porwers simultaneously.
Detector 4 selects resistant to elevated temperatures thermopile detector.It can improve precision, and heat load is little, and response time is fast, energy
Adapt to the modulating frequency of tens hertz.One alternative detector 4 is U.S. Dexter Research Center company
ST-120, it has four passages, and each passage is same detector.Each passage is equipped with window filter sheet, optional
Select specific wavelength.
Connect light source 2 and detector mounting seat 6 is the cavity of sampling air chamber.It is divided into four passages, as shown in Figure 3
(dotted line represents and separates the most physically between adjacency channel).Two of which as reference channel (λ and R passage), other two
Individual for sampling channel (S1 and S2 passage).If being drilled into natural gas in drilling course, gas is by the air inlet of air chamber of sampling
Flow through sampling channel, flowed out by the gas outlet, right side of coupled balance air chamber 7.Reference channel R air inlet/outlet multiplexing, fills out
Seal after charging gas.This passage connects with balance air chamber 7, is pre-charged with the trace methane gas of 10 atmospheric pressure 1%
Body, at normal temperatures and pressures, due to the existence of Balance Air indoor pressure reduction, sliding plunger will slide into the leftmost side in Fig. 1.R passage with
The transmission light of signalling channel S2 is through the filter plate of Same Wavelength.If using methane for oil gas composition as measuring target, filter plate
Transmission peaks be located at the absworption peak 3.357 microns of methane.If using the C-H bond of oil gas composition as measuring target, filter plate
Transmission peaks is located at the absworption peak 3.430 microns of C-H bond.Signalling channel S2, by selecting the filter plate of different wave length, can be used for
Detection other gases (such as hydrogen sulfide gas, occur that hydrogen sulfide gas is extremely hazardous in drilling process) in addition to methane are
No existence, as the qualitative analysis of hazardous gas.This patent only illustrates with methane for measuring target, and method therefor is also applicable to it
It measures target.
As described in Figure 3, passage λ is reference channel, connects with sampling channel, and λ is located at 3.95 microns, away from any
Absworption peak, the normalization factor calculated for gas transmissivity to be measured.The air inlet/outlet of reference channel is close upon completion of the calibration
Envelope.
Select between 5 to 50 millimeters according to cavity length in detectivity and range, this example.Consider to collimate with light source
Module and detector are tightly connected, and the overall diameter of cavity is between 10-15 millimeter.The optical window at two ends uses sapphire, fluorine
Change calcium, the infrared transmission material such as barium fluoride.Signalling channel two ends use single sealed window.
For ensureing that reference gas chamber and sampling air chamber equality of temperature, with pressure, devise balance air chamber 7.As described in Figure 1, balance air chamber is
Cylindric air chamber, between mounting seat 6 and 9 and seal, is provided with the sliding plunger of a good seal in air chamber
8, it is ensured that piston both sides gas is revealed the most mutually.Balance air chamber 7 side (on the left of Fig. 2) connects with reference channel R, opposite side (right side)
Connecting with sampling channel S1, passage S1, S2 and λ connect, and the gas outlet of sampling channel is also disposed at this side.At measuring while drilling
During, the air pressure of sampling channel is exactly with the pressure of the drill power, the most hundreds of atmospheric pressure.Therefore the material choosing of piston in balance air chamber
Select the material of necessary high temperature high voltage resistant.As described in Figure 2, at normal temperatures and pressures, the first of 10 atmospheric pressure 1% is filled in reference channel R
Alkane gas, pressure reduction makes piston slide into the rightmost side.In drilling course, the air pressure of sampling air chamber constantly increases, and reaches hundreds of greatly
Air pressure, makes sliding plunger 8 constantly slide to the left, and the existence of balance air chamber is contemplated to make reference channel R keep with sampling channel
With pressure, thus can avoid carrying out again methane spectra and drift about under measuring environment the compensation of deformation.Balance air chamber width and gas
The overall diameter of chamber body keeps consistent, by changing radius size, thus changes volume size, and volume size determines this analysis
The maximum pressure scope of instrument work.
Lower example is selected to illustrate the principle of this method.In this example, selected balance air chamber 7 cavity overall diameter is 10 millimeters, and cavity is long
Degree is 20 millimeters.Reference channel, a diameter of 1 millimeter of the connecting pipe that sampling channel is connected with balance air chamber, length adds up to and is about 8
Millimeter.The width of balance air chamber is consistent with air chamber outer diameter, is 10 millimeters, and radius is 2.5 centimetres.Such as Fig. 2, test of going into the well
Pressure P on the left of sliding plunger 8 beforeminBeing 10 atmospheric pressure, piston is positioned at the rightmost side, the body that now methane gas of 1% occupies
Long-pending V1 is maximum, is computed, and V1 approximates 6377 π cubic millimeters.In drilling course, when sliding plunger 8 slides into the leftmost side, point
Analyzer can bear maximum pressure and reaches maximum Pmax, it being computed, the volume V2 that now methane gas of 1% occupies is minimum, about
Equal to 127 π cubic millimeters.The inverse ratio P that ratio V2/V1 is pressure of volumemax/Pmin, analyser in this example can be obtained and can bear
Big pressure PmaxIt is about 502 atmospheric pressure, is adapted to the applied environment of measuring while drilling completely.
5 operating processes (method)
After completing the installation of above-mentioned spectrometer module, the overall system of spectrogrph need to be completed by following operating process
System design, could be used for actual measurement.
(1) first determining the hardware designs of system at room temperature, at a normal, circuit, light path can normally work.
(2) by the ambient temperature of the built-in thermosensitive resistance measurement air chamber of detector 4 and the driving of light source 1 is controlled with this
Electric current, so that light source 1 is all the time according to the spectral pattern radiation set.
(3) reference channel R is filled the methane gas of 10 atmospheric pressure 1%.
(4) the temperature inspection of spectrogrph.Progressively it is warmed up to, checks that can circuit, light path normally work, confirm high workload
Temperature.
(5) the high pressure inspection of spectrogrph.Progressively pressurizeing, check that can circuit, light path normally work, inspection system is with or without letting out
Dew.Confirm high workload pressure.
(6) the normal temperature and pressure calibration of spectrogrph.Same gas is passed through, such as methane and nitrogen at reference channel and sampling channel
The mixed gas of gas, confirms detector sensitivity and investigative range, and linear response scope.
(7) comparison R, channel S signal calculate the determination method of target analyte concentration and include: use subtraction, split, intersect
Dependency, convolution, one or more mathematics of curve matching, regression analysis and optimization or the application process of Chemical Measurement.
(8) spectrogrph through above-mentioned calibration is carried out system test assessed its performance by simulated environment test.
This utility model device has the advantages that analysis speed is fast, can complete analysis task in 5 seconds；Analyze
Low cost, will not consume any sample during analysis；Can on-line analysis, detection analyze result can pass to ground in real time
Face, has huge practical value, improves the efficiency of oil gas field detection；Operation security purpose sulfur is added in addition to oil and gas detection
Change hydrogen qualitative detection；High pressure resistant high temperature, size is little, low in energy consumption, it is simple to be integrated into in rig.
Claims (6)
1. temperature, pressure self-balancing measure oil gas composition with bore a spectrometer device, including the throwing that light source is collimated
Parabolic mirror, it is characterised in that: reflecting mirror arranges sampling air chamber and reference gas chamber, in turn below with four individual thermoelectric lists
Unit and temperature sensor detector, can with autobalance reference gas chamber with sampling air chamber pressure balance air chamber, balance air chamber
Interior with sliding plunger.
Temperature, pressure self-balancing the most according to claim 1 measure oil gas composition with bore spectrometer device, its feature
It is: detector is provided below semiconductor chilling plate.
Temperature, pressure self-balancing the most according to claim 1 and 2 measure oil gas composition with boring spectrometer device, it is special
Levy and be: have four passages in the cavity of sampling air chamber and reference gas chamber, connect with balance air chamber both sides respectively, it is ensured that be connected
Road pressure is identical, and detector is with four passages and corresponding four individual thermoelectric detectors.
Temperature, pressure self-balancing the most according to claim 3 measure oil gas composition with bore spectrometer device, its feature
It is: each passage of detector respectively joins a filter plate and transmission window.
Temperature, pressure self-balancing the most according to claim 4 measure oil gas composition with bore spectrometer device, its feature
It is: four-way is respectively reference channel λ and R passage, sampling channel S1 and S2 passage.
Temperature, pressure self-balancing the most according to claim 5 measure oil gas composition with bore spectrometer device, its feature
It is: parabolic mirror, sampling air chamber are tightly connected with reference gas chamber, mounting seat and balance air chamber.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620566524.1U CN205823262U (en) | 2016-06-13 | 2016-06-13 | A kind of temperature, pressure self-balancing measure oil gas composition with bore spectrometer device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620566524.1U CN205823262U (en) | 2016-06-13 | 2016-06-13 | A kind of temperature, pressure self-balancing measure oil gas composition with bore spectrometer device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971582A (en) * | 2016-06-13 | 2016-09-28 | 中国石油大学(华东) | Temperature and pressure automatically-balanced spectrograph device and method for measuring oil and gas components while drilling |
| CN106988724A (en) * | 2017-04-12 | 2017-07-28 | 中国石油大学(华东) | With brill spectrometer |
| CN108316920A (en) * | 2017-01-16 | 2018-07-24 | 中石化石油工程技术服务有限公司 | Downhole drill gas detection logging test device |
-
2016
- 2016-06-13 CN CN201620566524.1U patent/CN205823262U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971582A (en) * | 2016-06-13 | 2016-09-28 | 中国石油大学(华东) | Temperature and pressure automatically-balanced spectrograph device and method for measuring oil and gas components while drilling |
| CN108316920A (en) * | 2017-01-16 | 2018-07-24 | 中石化石油工程技术服务有限公司 | Downhole drill gas detection logging test device |
| CN106988724A (en) * | 2017-04-12 | 2017-07-28 | 中国石油大学(华东) | With brill spectrometer |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161221 Termination date: 20170613 |