CN108708713A - 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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- CN108708713A CN108708713A CN201810521146.9A CN201810521146A CN108708713A CN 108708713 A CN108708713 A CN 108708713A CN 201810521146 A CN201810521146 A CN 201810521146A CN 108708713 A CN108708713 A CN 108708713A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 45
- 238000000691 measurement method Methods 0.000 title claims abstract description 18
- 230000003287 optical effect Effects 0.000 claims abstract description 85
- 230000001012 protector Effects 0.000 claims abstract description 22
- 238000001514 detection method Methods 0.000 claims abstract description 17
- 238000009434 installation Methods 0.000 claims abstract description 17
- 238000010276 construction Methods 0.000 claims abstract description 14
- 238000012545 processing Methods 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 238000012360 testing method Methods 0.000 claims abstract description 7
- 239000013307 optical fiber Substances 0.000 claims description 34
- 239000000835 fiber Substances 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 19
- 239000012530 fluid Substances 0.000 claims description 17
- 238000004458 analytical method Methods 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 10
- 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
- 238000013480 data collection Methods 0.000 claims description 6
- 238000001228 spectrum Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 230000014759 maintenance of location Effects 0.000 claims description 4
- 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
- 238000002474 experimental method Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 238000011010 flushing procedure Methods 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
- 238000004804 winding 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
- 239000011593 sulfur Substances 0.000 abstract description 3
- 239000000523 sample Substances 0.000 description 7
- 238000005259 measurement Methods 0.000 description 4
- 238000012913 prioritisation Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- 239000004744 fabric Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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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- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
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Abstract
The present invention discloses the measurement technique that well logging is cutd open in a kind of production of producing well, including step：Pit shaft prepares；Tool is tested；Construction equipment is installed；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 gathered data, detection device analyzing and processing data confirm underground liquid surface state.This invention ensures that the reliability and accuracy of data acquisition；It is not limited by external environment, ensures to obtain complete true data；It realizes and various existing aperture producing wells is completed to measure on the basis of not destroying producing well itself；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 realize 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 of well logging is cutd open more particularly to a kind of production of producing well.
Background technology
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 datas 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 or optical fiber) by crawl device transmission (cable), coiled tubing when production well logging；Data acquisition can be because of pit shaft not
The reasons such as clean and limited to.Because the probe of conventional logging instrument is not usually suitable for horizontal well page with the design for opening leg
Rock gas pit shaft can not be monitored simultaneously entirely by the completion mode of big orifice bridge plug.
Invention content
To solve the above-mentioned problems, the present invention proposes the measurement technique that well logging is cutd open in a kind of production of producing well, and the present invention ensures
The reliability and accuracy of data acquisition；It is not limited by external environment, ensures to obtain complete and true data；It can be real
Now various existing aperture producing wells are completed to measure on the basis of not destroying producing well itself；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 coiled tubing had both may be implemented in primary construction,
Realization is monitored the life cycle of entire oil well；It can realize the special producings well such as high temperature or high sulfur-bearing production logging
Detection.
In order to achieve the above objectives, the technical solution adopted by the present invention is：The measurement technique of well logging, packet are cutd open in a kind of producing well production
Include step：
(1) pit shaft prepares：Gauguste cutter drifting and casing scraping are carried out 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 experiment；
(3) construction equipment is installed：Well head Pulley, reel, optical cable and ground checkout equipment are installed, in tubing nipple
Upper welding toe-end protector；The reel winds optical cable, is stretched 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：Optical cable guarantor is respectively mounted 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 is blocked into optical cable of the end face in packer and passes through hole, to what is be pierced by
Optical cable and total optical cable carry out continued access；
(6) bulge test of high pressure dynamic and cable signal detection：It is suppressed using the continuous point of equipment interconnection is dynamically suppressed；It is right
Cable signal is detected, and executes the next step after detection is qualified, optical cable is blocked if unqualified and is connected again；
(7) section tubing string 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 stretches into well；
(9) cable connection and ground installation installation and debugging：Continued access is carried out to the optical cable being pierced by and total optical cable by packer；
(10) the optical cable gathered data, detection device analyzing and processing data confirm 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 fibers 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 signals, the reflection signal by underground variation is detected by DAS fiber and DTS optical fiber by reflection, to obtain
Obtain the gathered data that well logging is cutd open in producing well production.
Further, the analyzing processing process of the gathered data, including step：
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 processing procedure of the DTS collecting fibers data；Including step：
Obtain the gathered data of DTS optical fiber；
Drift correction is done to the gathered data of DTS optical fiber；
Abnormal processing is filtered and removed to gathered data；Temperature and pressure gradient is calculated according to well track；
The gathered data each exported is with there are one the deviations estimated；Several groups of data can averagely be obtained with more accurate measurement knot
Fruit.
Fluid flow profile is established by the gathered data collection of DTS optical fiber；
The match condition of fluid model and data is established, flow is calculated., by DTS monitoring temperatures, 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 gathered 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, establishing fluid flow profile, including step by the gathered data collection of DTS optical fiber：
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, to 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 current between energy, frictional heat and Joule-Thomson effect and pit shaft and stratum and conductive characteristic.
Further, establishing the match condition of fluid model and data, flow, including step are calculated：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 models analyze gas-liquid two-phase fluidised form；Fluid system is directly determined by flow velocity and gas holdup/specific retention.
The flow rate calculation process, including step：
By measure 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 advantageous effect of the technical program：
The present invention is not limited by external environments such as well temperature, well pressure, well depth and fluid properties；It will not be unclean by pit shaft
Factor influences, and ensures 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, can be realized to various existing aperture producing wells on the basis for not destroying producing well itself by aperture
Upper completion measures；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 coiled tubing had both may be implemented in primary construction, realized the entire life to producing well
The life period is monitored；It can realize 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 temperatures, 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 which is 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 completion is more than a certain range
It cannot carry out boring mill bridge plug construction, and big orifice face must be used to bore bridge plug and carry out completion, 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, downhole flow is monitored 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.
Description of the drawings
Fig. 1 is that the measurement process flow diagram of well logging is cutd open in a kind of producing well production of the present invention；
Fig. 2 cuts open the structural schematic diagram of the measurement technique of well logging for a kind of producing well production 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 implementation mode
To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention is made into one below in conjunction with the accompanying drawings
Step illustrates.
In the present embodiment, shown in referring to Fig. 1 and Fig. 2, the present invention proposes the measurement work that well logging is cutd open in a kind of production of producing well
Skill, including step：
(1) pit shaft prepares：Gauguste cutter drifting and casing scraping are carried out 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 experiment is installed and is crossed in examination；
(3) construction equipment is installed：Well head Pulley 1, reel 2, optical cable 5 and ground checkout equipment are installed, 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 stretches into well, and the signal output end of the optical cable 5 is connected to detection device；
(4) installation hoop protector 4 and optical cable protector 6：It is respectively mounted optical cable at the 1/3 and 2/3 of every oil pipe ontology
Protector 6 is crossing 3 position of oil pipe hoop installation hoop protector 4；
(5) installation optical cable 5 passes through packer 7：Optical cable 5 is blocked into optical cable 5 of the end face in packer 7 and passes through hole, it is right
The optical cable 5 and total optical cable 5 being pierced by carry out continued access；
(6) 5 signal detection of the bulge test of high pressure dynamic and optical cable：It is suppressed using the continuous point of equipment interconnection is dynamically suppressed；
5 signal of optical cable is detected, the next step is executed after detection is qualified, optical cable 5 is blocked if unqualified and is connected again；
(7) section tubing string enters well and optical cable 5 is fixedly mounted：The installation box cupling protection 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 stretches into well；
(9) connecting of optical cable 5 and ground installation installation and debugging：The optical cable 5 and total optical cable 5 that are pierced by are carried out by packer 7
Continued access；
(10) 5 gathered data of the optical cable, detection device analyzing and processing data confirm 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 fibers 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
Go out signal, 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 gathered data of well logging.
As the prioritization scheme of above-described embodiment, the analyzing processing process of the gathered data, including step：
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 processing procedure of the DTS collecting fibers data；Including step：
Obtain the gathered data of DTS optical fiber；
Drift correction is done to the gathered data of DTS optical fiber；
Abnormal processing is filtered and removed to gathered data；Temperature and pressure gradient is calculated according to well track；
The gathered data each exported is with there are one the deviations estimated；
Fluid flow profile is established by the gathered data collection of DTS optical fiber；
The match condition of fluid model and data is established, flow is calculated.
Wherein, depositing of being obtained while drift correction is according to DTS collecting fiber data is done to the gathered data of DTS optical fiber
Storage formula temperature data carrys out calibration.
Wherein, fluid flow profile, including step are established by the gathered data collection of DTS optical fiber：
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, to 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 current between energy, frictional heat and Joule-Thomson effect and pit shaft and stratum and conductive characteristic.
Wherein, the match condition of fluid model and data is established, flow, including step are calculated：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 models analyze gas-liquid two-phase fluidised form；
The flow rate calculation process, including step：
By measure 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 (10)
1. the measurement technique of well logging is cutd open in a kind of producing well production, which is characterized in that including step：
(1) pit shaft prepares：Gauguste cutter drifting and casing scraping are carried out 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 experiment is installed and is crossed in examination；
(3) construction equipment is installed：Well head Pulley (1), reel (2), optical cable (5) and ground checkout equipment are installed, in oil
Toe-end protector is welded on pipe pipe nipple；The reel (2) winding optical cable (5), by Pulley (1) by the letter of optical cable (5)
Number collecting terminal is stretched into along oil pipe in well, and the signal output end of the optical cable (5) is connected to detection device；
(4) installation hoop protector (4) and optical cable protector (6)：It is 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) installation optical cable (5) passes through packer (7)：Optical cable (5) is blocked optical cable (5) of the end face in packer (7) to pass through
Hole carries out continued access to the optical cable (5) and total optical cable (5) that are pierced by；
(6) bulge test of high pressure dynamic and optical cable (5) signal detection：It is suppressed using the continuous point of equipment interconnection is dynamically suppressed；It is right
Optical cable (5) signal is detected, and executes the next step after detection is qualified, optical cable (5) is blocked if unqualified and is connected again；
(7) section tubing string 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 stretched into along oil pipe in well；
(9) optical cable (5) connecting and ground installation installation and debugging：By packer (7) to the optical cable (5) and total optical cable (5) that are pierced by
Carry out continued access；
(10) optical cable (5) gathered data, detection device analyzing and processing data confirm underground liquid surface state.
2. the measurement technique of well logging is cutd open in a kind of producing well production according to claim 1, which is characterized in that the optical cable (5)
For armored optical cable, the optical cable (5) includes DAS fiber and DTS optical fiber, and the DAS fiber acquires sonic data, the DTS light
Fine collecting temperature data.
3. the measurement technique of well logging is cutd open in a kind of producing well production according to claim 2, 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 signals, change by underground
Reflection signal detected by reflection by DAS fiber and DTS optical fiber, to obtain the gathered data that well logging is cutd open in producing well production.
4. the measurement technique of well logging is cutd open in a kind of producing well production according to claim 3, which is characterized in that the gathered data
Analyzing processing process, including step：
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. the measurement technique of well logging is cutd open in a kind of producing well production according to claim 4, which is characterized in that the DTS light
The processing procedure of fine gathered data；Including step：
Obtain the gathered data of DTS optical fiber；
Drift correction is done to the gathered data of DTS optical fiber；
Abnormal processing is filtered and removed to gathered data；Temperature and pressure gradient is calculated according to well track；Each
The gathered data of output is with there are one the deviations estimated；
Fluid flow profile is established by the gathered data collection of DTS optical fiber；
The match condition of fluid model and data is established, flow is calculated.
6. the measurement technique of well logging is cutd open in a kind of producing well production according to claim 5, which is characterized in that DTS optical fiber
Gathered data does the memory type temperature data obtained while drift correction is according to DTS collecting fiber data come calibration.
7. the measurement technique of well logging is cutd open in a kind of producing well production according to claim 5, which is characterized in that by DTS optical fiber
Gathered data collection establishes fluid flow profile, including step：
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, to by using different flows in different regions
To distinguish 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 hydrodynamics energy
Thermal convection current between amount, frictional heat and Joule-Thomson effect and pit shaft and stratum and conductive characteristic.
8. the measurement technique of well logging is cutd open in a kind of producing well production according to claim 7, which is characterized in that establish fluid model
With the match condition of data, flow, including step are calculated：Flow is determined by comparing the data of the model of the energy conservation of well
Value.
9. the measurement technique of well logging is cutd open in a kind of producing well production according to claim 8, 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 models
Fluidised form；
The flow rate calculation process, including step：
By measure vapor chamber in temperature variation, extrapolate the size that vapor chamber most starts have it is much；
By preset analysis model, the steam for solving to obtain different zones according to different zones different temperatures downward trend heats
Area, and then steam absorbing amount and steam entry profile are obtained, to calculate flow.
10. the measurement technique of well logging is cutd open in a kind of producing well production according to claim 1, 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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| CN109594981A (en) * | 2018-12-12 | 2019-04-09 | 中法渤海地质服务有限公司 | A method of measurement laminated distributor under well yield |
| CN109594981B (en) * | 2018-12-12 | 2022-07-15 | 中法渤海地质服务有限公司 | Method for measuring underground layered yield |
| CN109838228A (en) * | 2019-02-26 | 2019-06-04 | 东北石油大学 | Ultra-high water-containing grease holdup measurement method based on thermal trace |
| CN109838228B (en) * | 2019-02-26 | 2019-09-24 | 东北石油大学 | Ultra-high water-containing grease holdup measurement method based on thermal trace |
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| CN110344815A (en) * | 2019-07-16 | 2019-10-18 | 中国石油大学(华东) | A kind of production profile monitoring method based on distribution type fiber-optic sound monitoring and distributed optical fiber temperature monitoring |
| CN110541702A (en) * | 2019-10-14 | 2019-12-06 | 中油奥博(成都)科技有限公司 | underground fluid distribution monitoring system and method based on distributed optical fiber sensing |
| CN110541702B (en) * | 2019-10-14 | 2024-04-05 | 中油奥博(成都)科技有限公司 | Underground fluid distribution monitoring system and method based on distributed optical fiber sensing |
| CN112360433A (en) * | 2020-11-11 | 2021-02-12 | 中石化石油工程技术服务有限公司 | Method for arranging monitoring optical fibers in horizontal well |
| CN112360433B (en) * | 2020-11-11 | 2023-11-07 | 中石化石油工程技术服务有限公司 | Method for arranging monitoring optical fiber in horizontal well |
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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 |