CN108708713B - The measurement technique of well logging is cutd open in a kind of producing well production - Google Patents
The measurement technique of well logging is cutd open in a kind of producing well production Download PDFInfo
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- CN108708713B CN108708713B CN201810521146.9A CN201810521146A CN108708713B CN 108708713 B CN108708713 B CN 108708713B CN 201810521146 A CN201810521146 A CN 201810521146A CN 108708713 B CN108708713 B CN 108708713B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- 238000000691 measurement method Methods 0.000 title claims abstract description 16
- 230000003287 optical effect Effects 0.000 claims abstract description 85
- 230000001012 protector Effects 0.000 claims abstract description 22
- 238000009434 installation Methods 0.000 claims abstract description 17
- 238000001514 detection method Methods 0.000 claims abstract description 16
- 238000010276 construction Methods 0.000 claims abstract description 14
- 238000012360 testing method Methods 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 238000005259 measurement Methods 0.000 claims abstract description 10
- 238000012545 processing Methods 0.000 claims abstract description 7
- 239000013307 optical fiber Substances 0.000 claims description 34
- 239000000835 fiber Substances 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 23
- 239000012530 fluid Substances 0.000 claims description 17
- 230000008569 process Effects 0.000 claims description 16
- 238000004458 analytical method Methods 0.000 claims description 13
- 238000004134 energy conservation Methods 0.000 claims description 8
- 238000012937 correction Methods 0.000 claims description 7
- 238000004364 calculation method Methods 0.000 claims description 6
- 238000001228 spectrum Methods 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 4
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- XQCFHQBGMWUEMY-ZPUQHVIOSA-N Nitrovin Chemical compound C=1C=C([N+]([O-])=O)OC=1\C=C\C(=NNC(=N)N)\C=C\C1=CC=C([N+]([O-])=O)O1 XQCFHQBGMWUEMY-ZPUQHVIOSA-N 0.000 claims description 3
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 238000011010 flushing procedure Methods 0.000 claims description 3
- 230000020169 heat generation Effects 0.000 claims description 3
- 210000002445 nipple Anatomy 0.000 claims description 3
- 238000007781 pre-processing Methods 0.000 claims description 3
- 238000007790 scraping Methods 0.000 claims description 3
- 238000007405 data analysis Methods 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 abstract description 7
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052717 sulfur Inorganic materials 0.000 abstract description 3
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Classifications
-
- 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
- E21B47/13—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 by electromagnetic energy, e.g. radio frequency
- E21B47/135—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 by electromagnetic energy, e.g. radio frequency using light waves, e.g. infrared or ultraviolet waves
-
- 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
- E21B47/07—Temperature
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
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Abstract
The present invention discloses a kind of producing well and produces the measurement technique for cuing open well logging, comprising steps of pit shaft prepares；Tool test；Construction equipment installation；Hoop protector and optical cable protector are installed；Installation optical cable passes through packer；The bulge test of high pressure dynamic and cable signal detection；Duan Guanzhu enters well and optical cable is fixedly mounted；Optical cable penetrates；Cable connection and ground installation installation and debugging；Optical cable acquires data, and detection device analyzing and processing data confirms underground liquid surface state.This invention ensures that the reliability and accuracy of data acquisition；It is not limited by external environment, guarantees to obtain complete true data；It realizes and measurement is completed on the basis of not destroying producing well itself to various existing aperture producing wells；Producing well itself is not had an impact, construction cost can also be reduced while convenient for construction；The full pit shaft well logging of coiled tubing had both may be implemented in primary construction, realized the monitoring of producing well Life cycle；It can be realized the detection of the special producings well such as high temperature or high sulfur-bearing production logging.
Description
Technical field
The invention belongs to producing well field of measuring technique, and the measurement technique for cuing open well logging is produced more particularly to a kind of producing well.
Background technique
At present other domestic a small number of optical fiber logging technique introduce units not can be well solved producing well production profile or
When the problem of feed liquor profile logging and explanation, also has and grating is added come calibration DTS temperature data by trial, and pass through addition
Pressure bomb attempts to make up the defect that DAS data are unable to quantitative interpretation, but final effect is all undesirable.
And conventional production logging is to be led to by cable transmission downhole instrument when carrying out industry section and fluid injection profile survey
The probe for crossing downhole instrument obtains the parameters such as temperature, pressure and flow to be analyzed, and works as and need to give birth to horizontal well
It needs to transmit (cable), oil pipe transmission (cable or optical fiber) by crawl device when producing well logging；Data acquisition can be unclean because of pit shaft
Etc. reasons and limited to.Because the probe of conventional logging instrument is not usually suitable for horizontal well shale gas with the design for opening leg
By the completion mode of big orifice bridge plug, pit shaft can not monitor simultaneously entirely.
Summary of the invention
To solve the above-mentioned problems, the measurement technique for cuing open well logging is produced the invention proposes a kind of producing well, the present invention guarantees
The reliability and accuracy of data acquisition；It is not limited by external environment, guarantees to obtain complete and true data；It can be real
Measurement is now completed on the basis of not destroying producing well itself to various existing aperture producing wells；Producing well itself will not be generated
It influences, construction cost can also be reduced while convenient for construction；The full pit shaft well logging of oil pipe had both may be implemented in primary construction, realized
The life cycle of entire oil well is monitored；It can be realized the inspection of the special producings well such as high temperature or high sulfur-bearing production logging
It surveys.
In order to achieve the above objectives, the technical solution adopted by the present invention is that: a kind of producing well produces the measurement technique for cuing open well logging, packet
Include step:
(1) pit shaft prepares: carrying out gauguste cutter drifting and casing scraping respectively to casing, it is ensured that pit shaft is complete and well-flushing is dry
Only；
(2) tool is tested: packer, well head are tried on more and the test of ground checkout equipment；Interview to optical cable protector
Install and cross well head test；
(3) construction equipment is installed: installation well head Pulley, reel, optical cable and ground checkout equipment, in tubing nipple
Upper welding toe-end protector；The reel winds optical cable, is protruded at the signal collection end of optical cable along oil pipe by Pulley
In well, the signal output end of the optical cable is connected to detection device；
(4) hoop protector and optical cable protector are installed: being respectively mounted optical cable guarantor at the 1/3 and 2/3 of every oil pipe ontology
Device is protected, hoop protector is installed crossing oil pipe hoop position；
(5) installation optical cable passes through packer: optical cable truncation end face being passed through the optical cable in packer and passes through hole, to what is be pierced by
Optical cable and total optical cable carry out continued access；
(6) it the bulge test of high pressure dynamic and cable signal detection: is suppressed using the continuous point of equipment interconnection is dynamically suppressed；It is right
Cable signal is detected, and performs the next step process after detection is qualified, optical cable is truncated if unqualified and connects again；
(7) Duan Guanzhu enters well and optical cable is fixedly mounted: coupling protector is installed at each oil pipe hoop of straight well section tubing string,
To fix optical cable；
(8) optical cable penetrates: optical cable passes through tubing hanger and four-way, by Pulley by the signal collection end of optical cable along oil pipe
It protrudes into well；
(9) continued access cable connection and ground installation installation and debugging: is carried out to the optical cable being pierced by and total optical cable by packer；
(10) optical cable acquires data, and detection device analyzing and processing data confirms underground liquid surface state.
Further, the optical cable is armored optical cable, the optical cable includes DAS fiber and DTS optical fiber, the DAS light
Fibre acquisition sonic data, the DTS collecting fiber temperature data.
Further, the DAS fiber is multimode fibre, the DTS optical fiber is single mode optical fiber；By DAS fiber and
DTS optical fiber light sending signal, the reflection signal by underground variation is detected by DAS fiber and DTS optical fiber by reflection, to obtain
It obtains producing well and produces the acquisition data for cuing open well logging.
Further, the analysis treatment process of the acquisition data, comprising steps of
Data filtering calculates geothermal gradient and erroneous estimation；
Potential payzone is identified by the section of anticipation；
Flow is calculated by whole probabilistic method；
It calculates surface flow rate and provides report；
The acquired results of each step and input parameter are included in the report.
Further, to the treatment process of the DTS collecting fiber data；Comprising steps of
Obtain the acquisition data of DTS optical fiber；
Drift correction is done to the acquisition data of DTS optical fiber；
Abnormal processing is filtered and removed to acquisition data；Temperature and pressure gradient is calculated according to well track；
The acquisition data of each output are furnished with the deviation of an estimation；Several groups of data can averagely be obtained with more accurate measurement knot
Fruit.
Fluid flow profile is established by the acquisition data set of DTS optical fiber；
The match condition of fluid model and data is established, flow is calculated., by DTS monitoring temperature, change production system,
The changes in distribution of downhole temperature field is obtained, while also then matching iteration in acquisition sonic data using model, finally obtaining
Monitoring result is cutd open in production.
It is obtained further, being done while drift correction is according to DTS collecting fiber data to the acquisition data of DTS optical fiber
The memory type temperature data taken carry out calibration；Data precision is improved, rear portion operation is convenient for.
Further, fluid flow profile is established by the acquisition data set of DTS optical fiber, comprising steps of
Production layer, implanted layer and fluidized bed establish model using the data of pre-processing, perforated interval and temperature；
It is definite value according to the flow in each production layer and implanted layer, thus different by being used in different regions
Flow distinguishes yield and injection rate；
Displays temperature and temperature gradient in section, react changes in flow rate by temperature gradient；
The model of an energy conservation is established using the temperature value of calculating；The model of the energy conservation includes fluid force
Thermal convection and conductive characteristic between energy, frictional heat generation and Joule-Thomson effect and pit shaft and stratum.
Further, establishing the match condition of fluid model and data, flow is calculated, comprising steps of by comparing well
The data of model of energy conservation determine flow value.
Further, the flow rate calculation process, flow is determined by gas holdup, specific retention and flow velocity, and according to
Taitel-Dukler analysis model analyzes gas-liquid two-phase fluidised form；Fluid system is directly determined by flow velocity and gas holdup/specific retention.
The flow rate calculation process, comprising steps of
By measurement vapor chamber in temperature variation, extrapolate the size that vapor chamber most starts have it is much；
By preset analysis model, solve to obtain the steam of different zones according to different zones different temperatures downward trend
Heating surface (area) (HS, and then steam absorbing amount and steam entry profile are obtained, to calculate flow.
Further, the DAS data to acquisition carry out frequency slice analysis；
The DAS data of acquisition calculate the energy value in every 60 second period compared with the square value of amplitude；17000
In the sample frequency of hertz, each energy value accumulates data from 1020000 DAS initial data；
It is filtered by frequency band, frequency dividing slice is divided into 16 frequency bands；In 4 minutes accumulative, formed with the slice of 10Hz
Spectra file；Underground liquid surface current amount is obtained using spectra file data.
Using the technical program the utility model has the advantages that
The present invention is not limited by external environments such as well temperature, well pressure, well depth and fluid properties；It is unclean pit shaft is not will receive
Factor influences, and guarantees to obtain complete and true data；This measurement technique tripping in production oil in protective casing in producing well
It in the pit shaft of pipe, is not limited, is can be realized to various existing aperture producing wells on the basis for not destroying producing well itself by aperture
Upper completion measurement；Without tripping in routine production logging instrument, producing well itself will not be had an impact, while convenient for construction
Construction cost can also be reduced；The full pit shaft well logging of oil pipe had both may be implemented in primary construction, realized the entire Life Cycle to producing well
Phase is monitored；It can be realized the detection of the special producings well such as high temperature or high sulfur-bearing production logging.
DTS data are modified by DAS data and perfect, by DTS monitoring temperature, change production system, obtain
The changes in distribution of downhole temperature field, while also then matching iteration in acquisition sonic data using model, finally obtaining production and cut open
Monitoring result；DAS and DTS data can all have the place of feature according to well head, tubing shoe and perforated interval and inclination section etc. respectively
Carry out correction depth, can be combined with each other and be determined when one of them are not known.
Solve conventional production logging in the prior art because pop one's head in be easy by pit shaft not clean factor due to cannot obtain
Whole and truthful data, producing well is in protective casing in the tripping in pit shaft of production tube, and conventional production logging instrument is because of probe
Outer diameter is big or irregular and can not enter well measurements, if after horizontal well shale gas well strata pressure in complete well is more than a certain range
It not can be carried out brill mill bridge plug construction, and big orifice face must be used to bore bridge plug and carried out well, and the internal diameter of big orifice bridge plug is maximum
Only 76mm, conventional production logging instrument can not enter well and measure, DTS and DAS fiber logging technique because optical fiber inherently
The problems such as being probe, being not necessarily to tripping in routine production logging instrument；Monitoring process aspect improves accuracy: traditional logger is logical
Rotor or probe are crossed, monitors downhole flow by lifting from the top and puting down.Fiber-optic monitoring is then by dividing optical fiber according to full pit shaft
The mode of cloth is stood in the wellbore, and the temperature and sonic data of full pit shaft can be monitored without relative displacement, under synchronization,
Then it carries out producing to analyse releasing by interpretation software；Unconfined flow has better explanation to Open-Hole Section.
Detailed description of the invention
Fig. 1 is that a kind of producing well of the invention produces the measurement process flow diagram for cuing open well logging；
Fig. 2 produces the structural schematic diagram for cuing open the measurement technique of well logging for producing well a kind of in the embodiment of the present invention；
Wherein, 1 it is Pulley, 2 be reel, 3 be oil pipe hoop, 4 be hoop protector, 5 be optical cable, 6 is optical cable
Protector, 7 are packers.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention is made into one with reference to the accompanying drawing
Step illustrates.
In the present embodiment, referring to figure 1 and figure 2, the measurement work for cuing open well logging is produced the invention proposes a kind of producing well
Skill, comprising steps of
(1) pit shaft prepares: carrying out gauguste cutter drifting and casing scraping respectively to casing, it is ensured that pit shaft is complete and well-flushing is dry
Only；
(2) tool is tested: packer 7, well head are tried on more and the test of ground checkout equipment；6 ground of optical cable protector
Well head test is installed and is crossed in examination；
(3) construction equipment is installed: installation well head Pulley 1, reel 2, optical cable 5 and ground checkout equipment, in oil pipe
Toe-end protector is welded on pipe nipple；The reel 2 winds optical cable 5, by Pulley 1 by the signal collection end edge of optical cable 5
Oil pipe protrudes into well, and the signal output end of the optical cable 5 is connected to detection device；
(4) hoop protector 4 and optical cable protector 6 are installed: being respectively mounted optical cable at the 1/3 and 2/3 of every oil pipe ontology
Protector 6 installs hoop protector 4 crossing 3 position of oil pipe hoop；
(5) installation optical cable 5 passes through packer 7: optical cable 5 of the end face in packer 7 is truncated in optical cable 5 and passes through hole, it is right
The optical cable 5 and total optical cable 5 being pierced by carry out continued access；
(6) it 5 signal detection of the bulge test of high pressure dynamic and optical cable: is suppressed using the continuous point of equipment interconnection is dynamically suppressed；
5 signal of optical cable is detected, process is performed the next step after detection is qualified, optical cable 5 is truncated if unqualified and connects again；
(7) Duan Guanzhu enters well and optical cable 5 is fixedly mounted: box cupling protection is installed at each oil pipe hoop 3 of straight well section tubing string
Device, to fix optical cable 5；
(8) optical cable 5 penetrates: optical cable 5 passes through tubing hanger and four-way, by Pulley 1 by the signal collection end edge of optical cable 5
Oil pipe protrudes into well；
(9) connecting of optical cable 5 and ground installation installation and debugging: the optical cable 5 and total optical cable 5 being pierced by are carried out by packer 7
Continued access；
(10) optical cable 5 acquires data, and detection device analyzing and processing data confirms underground liquid surface state.
As the prioritization scheme of above-described embodiment, the optical cable 5 be armored optical cable, the optical cable 5 include DAS fiber and
DTS optical fiber, the DAS fiber acquire sonic data, the DTS collecting fiber temperature data.
The DAS fiber is multimode fibre, and the DTS optical fiber is single mode optical fiber；It is sent by DAS fiber and DTS optical fiber light
Signal out, the reflection signal by underground variation is detected by DAS fiber and DTS optical fiber by reflection, to obtain producing well production
Cut open the acquisition data of well logging.
As the prioritization scheme of above-described embodiment, the analysis treatment process of the acquisition data, comprising steps of
Data filtering calculates geothermal gradient and erroneous estimation；
Potential payzone is identified by the section of anticipation；
Flow is calculated by whole probabilistic method；
It calculates surface flow rate and provides report；
The acquired results of each step and input parameter are included in the report.
As the prioritization scheme of above-described embodiment, to the treatment process of the DTS collecting fiber data；Comprising steps of
Obtain the acquisition data of DTS optical fiber；
Drift correction is done to the acquisition data of DTS optical fiber；
Abnormal processing is filtered and removed to acquisition data；Temperature and pressure gradient is calculated according to well track；
The acquisition data of each output are furnished with the deviation of an estimation；
Fluid flow profile is established by the acquisition data set of DTS optical fiber；
The match condition of fluid model and data is established, flow is calculated.
Wherein, the acquisition data of DTS optical fiber are done with depositing of obtaining while drift correction is according to DTS collecting fiber data
Storage formula temperature data carrys out calibration.
Wherein, fluid flow profile is established by the acquisition data set of DTS optical fiber, comprising steps of
Production layer, implanted layer and fluidized bed establish model using the data of pre-processing, perforated interval and temperature；
It is definite value according to the flow in each production layer and implanted layer, thus different by being used in different regions
Flow distinguishes yield and injection rate；
Displays temperature and temperature gradient in section, react changes in flow rate by temperature gradient；
The model of an energy conservation is established using the temperature value of calculating；The model of the energy conservation includes fluid force
Thermal convection and conductive characteristic between energy, frictional heat generation and Joule-Thomson effect and pit shaft and stratum.
Wherein, the match condition of fluid model and data is established, flow is calculated, comprising steps of by comparing the energy of well
The data of the model of weighing apparatus are kept to determine flow value.
Wherein, the flow rate calculation process determines flow by gas holdup, specific retention and flow velocity, and according to Taitel-
Dukler analysis model analyzes gas-liquid two-phase fluidised form；
The flow rate calculation process, comprising steps of
By measurement vapor chamber in temperature variation, extrapolate the size that vapor chamber most starts have it is much；
By preset analysis model, solve to obtain the steam of different zones according to different zones different temperatures downward trend
Heating surface (area) (HS, and then steam absorbing amount and steam entry profile are obtained, to calculate flow.
As the prioritization scheme of above-described embodiment, frequency slice analysis is carried out to the DAS data of acquisition；
The DAS data of acquisition calculate the energy value in every 60 second period compared with the square value of amplitude；17000
In the sample frequency of hertz, each energy value accumulates data from 1020000 DAS initial data；
It is filtered by frequency band, frequency dividing slice is divided into 16 frequency bands；In 4 minutes accumulative, formed with the slice of 10Hz
Spectra file；Underground liquid surface current amount is obtained using spectra file data.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (8)
1. a kind of producing well produces the measurement technique for cuing open well logging, which is characterized in that comprising steps of
(1) pit shaft prepares: carrying out gauguste cutter drifting and casing scraping respectively to casing, it is ensured that pit shaft is complete and well-flushing is clean；
(2) tool is tested: packer (7), well head are tried on more and the test of ground checkout equipment；Optical cable protector (6) ground
Well head test is installed and is crossed in examination；
(3) construction equipment is installed: installation well head Pulley (1), reel (2), optical cable (5) and ground checkout equipment, in oil
Toe-end protector is welded on pipe pipe nipple；The reel (2) winds optical cable (5), by Pulley (1) by the letter of optical cable (5)
Number collecting terminal protrudes into well along oil pipe, and the signal output end of the optical cable (5) is connected to detection device；The optical cable (5) includes
DAS fiber and DTS optical fiber, the DAS fiber acquire sonic data, the DTS collecting fiber temperature data；
(4) hoop protector (4) and optical cable protector (6) are installed: being respectively mounted optical cable at the 1/3 and 2/3 of every oil pipe ontology
Protector (6) is crossing oil pipe hoop (3) position installation hoop protector (4)；
(5) packer (7) are passed through in installation optical cable (5): optical cable (5) truncation end face being passed through the optical cable (5) in packer (7) and is passed through
Hole carries out continued access to the optical cable (5) and total optical cable (5) being pierced by；
(6) it the bulge test of high pressure dynamic and optical cable (5) signal detection: is suppressed using the continuous point of equipment interconnection is dynamically suppressed；It is right
Optical cable (5) signal is detected, and performs the next step process after detection is qualified, optical cable (5) is truncated if unqualified and connects again；
(7) Duan Guanzhu enters well and optical cable (5) is fixedly mounted: box cupling protection is installed at each oil pipe hoop (3) of straight well section tubing string
Device, to fix optical cable (5)；
(8) optical cable (5) penetrates: optical cable (5) passes through tubing hanger and four-way, by Pulley (1) by the signal collection of optical cable (5)
End is protruded into well along oil pipe；
(9) optical cable (5) connecting and ground installation installation and debugging: by packer (7) to the optical cable (5) and total optical cable (5) being pierced by
Carry out continued access；
(10) optical cable (5) acquires data, and detection device analyzing and processing data confirms underground liquid surface state；
To the treatment process of the DTS collecting fiber data；Comprising steps of
Obtain the acquisition data of DTS optical fiber；
Drift correction is done to the acquisition data of DTS optical fiber；
Abnormal processing is filtered and removed to acquisition data；Temperature and pressure gradient is calculated according to well track；Each
The acquisition data of output are furnished with the deviation of an estimation；
Fluid flow profile is established by the acquisition data set of DTS optical fiber；Fluid flow profile is established by the acquisition data set of DTS optical fiber, including
Step: production layer, implanted layer and fluidized bed establish model using the data of pre-processing, perforated interval and temperature；According to every
Flow in a production layer and implanted layer is definite value, thus by distinguishing yield using different flows in different regions
And injection rate；Displays temperature and temperature gradient in section, react changes in flow rate by temperature gradient；Utilize the temperature value of calculating
Establish the model of an energy conservation；The model of the energy conservation includes hydrodynamics energy, frictional heat generation and joule-Tom
Thermal convection and conductive characteristic between inferior effect and pit shaft and stratum；
Frequency slice analysis is carried out to the DAS data of acquisition；
The match condition of fluid model and data is established, flow is calculated.
2. a kind of producing well according to claim 1 produces the measurement technique for cuing open well logging, which is characterized in that the optical cable (5)
For armored optical cable.
3. a kind of producing well according to claim 2 produces the measurement technique for cuing open well logging, which is characterized in that the DAS fiber
For multimode fibre, the DTS optical fiber is single mode optical fiber；By DAS fiber and DTS optical fiber light sending signal, change by underground
Reflection signal detected by DAS fiber and DTS optical fiber by reflection, so that obtaining producing well produces the acquisition data for cuing open well logging.
4. a kind of producing well according to claim 3 produces the measurement technique for cuing open well logging, which is characterized in that the acquisition data
Analysis treatment process, comprising steps of
Data filtering calculates geothermal gradient and erroneous estimation；
Potential payzone is identified by the section of anticipation；
Flow is calculated by whole probabilistic method；
It calculates surface flow rate and provides report；
The acquired results of each step and input parameter are included in the report.
5. a kind of producing well according to claim 1 produces the measurement technique for cuing open well logging, which is characterized in that DTS optical fiber
Acquisition data do the memory type temperature data obtained while drift correction is according to DTS collecting fiber data come calibration.
6. a kind of producing well according to claim 1 produces the measurement technique for cuing open well logging, which is characterized in that establish fluid model
With the match condition of data, flow is calculated, comprising steps of determining flow by comparing the data of the model of the energy conservation of well
Value.
7. a kind of producing well according to claim 6 produces the measurement technique for cuing open well logging, which is characterized in that the flow rate calculation
Process determines flow by gas holdup, specific retention and flow velocity, and analyzes gas-liquid two-phase according to Taitel-Dukler analysis model
Fluidised form；
The flow rate calculation process, comprising steps of
By measurement vapor chamber in temperature variation, extrapolate the size that vapor chamber most starts have it is much；
By preset analysis model, heated according to the steam that different zones different temperatures downward trend solves to obtain different zones
Area, and then steam absorbing amount and steam entry profile are obtained, to calculate flow.
8. a kind of producing well according to claim 1 produces the measurement technique for cuing open well logging, which is characterized in that the DAS of acquisition
Data carry out frequency slice analysis；
The DAS data of acquisition calculate the energy value in every 60 second period compared with the square value of amplitude；At 17000 hertz
Sample frequency in, each energy value accumulates data from 1020000 DAS initial data；
It is filtered by frequency band, frequency dividing slice is divided into 16 frequency bands；In 4 minutes accumulative, frequency spectrum is formed with the slice of 10Hz
File；Underground liquid surface current amount is obtained using spectra file data.
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Denomination of invention: A measurement technology of production well profile logging Effective date of registration: 20200929 Granted publication date: 20190809 Pledgee: Bank of Chengdu science and technology branch of Limited by Share Ltd. Pledgor: CHENGDU WELL PLUS OILFIELD SERVICE Co.,Ltd. Registration number: Y2020980006578 |