CN109281665A - A method of single layer formation water salinity is calculated based on producing profile testing technology - Google Patents
A method of single layer formation water salinity is calculated based on producing profile testing technology Download PDFInfo
- Publication number
- CN109281665A CN109281665A CN201811197775.7A CN201811197775A CN109281665A CN 109281665 A CN109281665 A CN 109281665A CN 201811197775 A CN201811197775 A CN 201811197775A CN 109281665 A CN109281665 A CN 109281665A
- Authority
- CN
- China
- Prior art keywords
- salinity
- water
- impedance
- temperature
- full
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The invention discloses a kind of methods for calculating single layer formation water salinity based on producing profile testing technology, it include: that single layer formation water salinity is directly calculated by producing profile testing data, it specifically includes: plate calibration: carrying out pair water holding instrumental calibrations using the salt water of different salinities under conditions of 20 DEG C of ground, obtain the relationship between salinity and impedance measurements under this condition；The full coolant-temperature gage correction of impedance: Laboratory Calibration data temperature is 20 DEG C, and the 1st point of downhole temperature TDOW1 is read using log data, reads value ZYHDWnd under the full well of impedance, is corrected to the full water number ZYHDWn of ground resistance with temperature relation；It looks into plate: gear number is numbered and tested according to instrument and selectes plate, is obtained according to the full water number ZYHDWn of impedance: the pit shaft salinity QCWHn at point N；Using the relationship of pit shaft flow and salinity, node-by-node algorithm obtain ZHDWn-1 ..., ZHDWn-1, ZHDWn mineralising angle value.The present invention can obtain each salinity for producing water-jet aperture layer after carrying out routine producing profile testing.
Description
Technical field
The present invention relates to petroleum well logging technology fields, and in particular to one kind is based on producing profile testing technology calculating single layer
The method of layer water salinity, this method is the determination method of different perforation layer output water salinities under the conditions of commingling production.
Background technique
In oil development and logging technique field, usual formation water salinity is to carry out wellhead after producing water by perforation layer
Sample chemical examination produces the total salinity of water-jet aperture layer to the well, if multi-openings layer is adopted in well conjunction, and different perforation layers because
Water filling in development process influences salinity and differs greatly, and assay method is that each perforation layer salinity cannot be distinguished.It is this existing
Shape results in the electrical log curve for the adjustment well that the later period in exploitation is bored because of each layer of sand salinity to a certain extent
Difference do not calculate accurately oil saturation (especially high resistance water layer phenomenon), thus seriously affected and sentenced using electrical log curve
Oil-break water layer.
Low yield liquid, High water cut production profile technology can measure qualification during the test, in general middle high aquifer formation
Full water impedance value can obtain each salinity for producing water-jet aperture layer, be conducive to adjacent region by the analysis to full water impedance value
The same jacket layer in domain determines salinity parameter, to be conducive to judge oil-water-layer again.
Formation water salinity is obtained by sampling after conventional sleeve, higher cost, and the chemical examination time is long.If enclosed sampling,
As a result can prepare, but higher cost.If not enclosed sampling, water sample gets back to ground, and pressure can be varied, sampling
Bucket in water can also spread out come it is a part of, influence the accuracy of result.
Summary of the invention
It is a kind of based on producing profile testing technology it is an object of the invention in view of the above shortcomings of the prior art, provide
The method for calculating single layer formation water salinity.
The present invention adopts the following technical scheme that realize:
A method of single layer formation water salinity being calculated based on producing profile testing technology, this method passes through production profile
Test data directly calculates single layer formation water salinity, comprising the following steps:
Plate calibration: S101 carries out pair water holding instrument marks using the salt water of different salinities under conditions of 20 DEG C of ground
It is fixed, obtain the relationship between salinity and impedance measurements under this condition；
S102, the full coolant-temperature gage correction of impedance: Laboratory Calibration data temperature is 20 DEG C, reads at the 1st point using log data
Downhole temperature TDOW1, read the full well of impedance under value ZYHDWnd, be corrected to the full water number of ground resistance with temperature relation
ZYHDWn；
S103 looks into plate: gear number is numbered and tested according to instrument and selectes plate, is obtained according to the full water number ZYHDWn of impedance
It arrives: the pit shaft salinity QCWHn at point N；
S104, using the relationship of pit shaft flow and salinity, node-by-node algorithm obtain ZHDWn-1 ..., ZHDWn-1, ZHDWn
Mineralising angle value.
A further improvement of the present invention lies in that in step S101, different salinities are utilized under conditions of 20 DEG C of ground
Salt water carries out double water holding instrument different stalls gear calibration, obtains the pass between salinity and impedance measurements under this condition
System, wherein gear number 0-6.
A further improvement of the present invention lies in that setting has production water using what double water holding loggers measured in step S102
The full water spot measured value of the top impedance of the perforation layer of amount press perforation layer from bottom to top successively benefit be ZYDW1, ZYDW2 ..., ZYDWn, temperature
Degree measured value correspond to TDOW1, TDOW2 ..., TDOWn, perforation layer is followed successively by 1 from the bottom up, 2 ..., n, and each perforation layer
Between only take a point, temperature correction is corrected to each full water number of measuring point impedance by the temperature coefficient Kn of table 1 using temperature value
To plate demarcate 20 DEG C, by ZYDWCn=ZYDWn/Kn calculating, obtain the full water number ZYDWC1, ZYDWC2 of new impedance ...,
ZYDWCn。
A further improvement of the present invention lies in that in step S103, using after temperature correction the full water number ZYDWC1 of impedance,
ZYDWC2 ..., ZYDWCn check the plate for answering instrument number and gear number, obtain the pit shaft salinity of the point) QCW1, QCW2 ...,
QCWn, so using double water holding logger parameters obtain perforation layer 1,2 ..., water yield QW1, QW2 of n ..., QWn.
A further improvement of the present invention lies in that salinity calculates as follows in step S103:
1st to n perforation layer is accumulative to produce water SUMWATER=QW1+QW2+ ...+QWn；
Salinity above n-th of perforation layer weights SUMQCWn=SUM-WATER*QCWn；
The salinity CWH1=QCW1 of 1st perforation layer；
The salinity of n-th perforation layer is CWHn=(SUMQCWn-SUMQCWn-1)/QWn.
The present invention has following beneficial technical effect:
It is solved using the double water holding producing profile testing technologies of high-precision provided by the invention and spits Ha Wen meter, Shan Shan, hills
The test problem of oil field category low porosity and low permeability low mineralization three low oilfield low yield liquid High water cut production profile.Utilize the double water holdings of high-precision
The method of producing profile testing technology inverting formation water salinity.For formation water salinity seek providing it is a kind of effective
Means.The formation water salinity mean error 14.1% calculated using the present invention.
In conclusion the present invention can obtain each mineralising for producing water-jet aperture layer after carrying out routine producing profile testing
Degree, does not need additionally to increase new test construction workload, and seeks convenient and efficient, can service or meet practical give birth in time
The needs of production.
Detailed description of the invention
Fig. 1 is salinity calculation flow chart of the present invention；
Fig. 2 is to calculate formation water salinity schematic diagram；
Fig. 3 is salinity-impedance value calibration calibration plate.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawing to tool of the invention
Body embodiment is described in further details.Here, the illustrative embodiments of the present invention and their descriptions are used to explain the present invention, but
It is not as a limitation of the invention.
TulufanHami oil field is after the regular period develops, and into high water cut rate, most of well has been in low yield liquid, Gao Han
Water.In order to improve recovery ratio, the measuring accuracy for improving oil well liquid-producing section is particularly significant, introduces low yield liquid, High water cut produces liquid and cuts open
Face measuring technology solves this problem.During this technology of application, by experimental analysis, sum up a kind of using high
The method that precision produces liquid measuring technology inverting formation water salinity, for formation water salinity seek providing it is a kind of effective
Means so that the interpretation coincidence rate of Water Flooding Layer increases.
The double water holding producing profile testing technologies of high-precision solve that spit Ha Wen meter, Shan Shan, Hill Oilfield category low porosity and low permeability low
The test problem of salinity three low oilfield low yield liquid High water cut production profile.Utilize the double water holding producing profile testing technologies of high-precision
The method of inverting formation water salinity.Seek providing a kind of effective means for formation water salinity.
As depicted in figs. 1 and 2, provided by the invention a kind of based on producing profile testing technology calculating single layer water flooding mineralising
The method of degree, comprising the following steps:
Step 101: plate calibration: (if it is other temperature, then needing by specification table 1 under conditions of 20 DEG C of ground
Temperature coefficient be adjusted) carry out double water holding instrumental calibrations using the salt water of different salinities, obtain mineralising under this condition
Relationship between degree and impedance measurements, plate are as shown in Figure 3.
1 temperature correction facotor table of table
| Serial number | Temperature (DEG C) | Correction coefficient Kn | Serial number | Temperature (DEG C) | Correction coefficient Kn |
| 1 | 15 | 1.14 | 11 | 85 | 0.39 |
| 2 | 20 | 1.00 | 12 | 90 | 0.37 |
| 3 | 25 | 0.89 | 13 | 95 | 0.36 |
| 4 | 30 | 0.81 | 14 | 100 | 0.34 |
| 5 | 35 | 0.73 | 15 | 105 | 0.33 |
| 6 | 40 | 0.67 | 16 | 110 | 0.32 |
| 7 | 45 | 0.62 | 17 | 115 | 0.30 |
| 8 | 50 | 0.58 | 18 | 120 | 0.29 |
| 5 | 55 | 0.54 | 19 | 125 | 0.28 |
| 6 | 60 | 0.51 | 20 | 130 | 0.27 |
| 7 | 65 | 0.48 | 21 | 135 | 0.27 |
| 8 | 70 | 0.45 | 22 | 140 | 0.26 |
| 9 | 75 | 0.43 | 23 | 145 | 0.25 |
| 10 | 80 | 0.41 | 24 | 150 | 0.24 |
Step 102: temperature correction: the perforation layer for having water yield that setting is measured using double water holding loggers is (from lower past
On be followed successively by 1,2 ..., n, the amount of all subscriptings presses the sequence of perforation layer from the bottom up herein) top (each perforation
Layer between only take a point) the full water spot measured value of impedance by perforation layer from bottom to top successively benefit be ZYDW1, ZYDW2 ..., ZYDWn,
Measured temperature correspond to TDOW1, TDOW2 ..., TDOWn, using the temperature coefficient Kn of table 1 in temperature value by specification to each
The full water number of measuring point impedance is corrected temperature correction (being corrected to 20 DEG C of plate calibration), calculates by ZYDWCn=ZYDWn/Kn,
Obtain the full water number ZYDWC1, ZYDWC2 of new impedance ..., ZYDWCn.
Step 103: plate: using after temperature correction the full water number ZYDWC1, ZYDWC2 of impedance ..., ZYDWCn checks and answers
The plate (formula that each gear fitting of every instrument can be used) of instrument number and gear number, obtains the pit shaft salinity of the point
(salinity for referring to the water in the pit shaft) QCW1, QCW2 ..., QCWn.It is penetrated using double water holding logger other parameters
Aperture layer 1,2 ..., water yield QW1, QW2 of n ..., QWn.
Step 104: the 1st to n (n=2,3 ..., n-1, n) a perforation layer it is accumulative produce water SUMWATER=QW1+QW2+ ...+
QWn；
Salinity above n-th of perforation layer weights SUMQCWn=SUM-WATER*QCWn；
The salinity CWH1=QCW1 of 1st perforation layer；
The salinity of n-th perforation layer is CWHn=(SUMQCWn-SUMQCWn-1)/QWn
In conclusion the present invention can obtain each mineralising for producing water-jet aperture layer after carrying out routine producing profile testing
Degree, does not need additionally to increase new test construction workload, and seeks convenient and efficient, can service or meet practical give birth in time
The needs of production.
Claims (5)
1. a kind of method for calculating single layer formation water salinity based on producing profile testing technology, which is characterized in that this method is logical
It crosses producing profile testing data and directly calculates single layer formation water salinity, comprising the following steps:
Plate calibration: S101 carries out pair water holding instrumental calibrations using the salt water of different salinities under conditions of 20 DEG C of ground, obtains
To under this condition salinity and impedance measurements between relationship；
S102, the full coolant-temperature gage correction of impedance: Laboratory Calibration data temperature is 20 DEG C, and the 1st point of well is read using log data
Lower temperature TDOW1 reads value ZYHDWnd under the full well of impedance, is corrected to the full water number ZYHDWn of ground resistance with temperature relation；
S103 looks into plate: gear number is numbered and tested according to instrument and selectes plate, is obtained according to the full water number ZYHDWn of impedance: point N
The pit shaft salinity QCWHn at place；
S104, using the relationship of pit shaft flow and salinity, node-by-node algorithm obtain ZHDWn-1 ..., ZHDWn-1, ZHDWn mineralising
Angle value.
2. a kind of method that single layer formation water salinity is calculated based on producing profile testing technology according to claim 1,
It is characterized in that, in step S101, double water holding instruments are carried out not using the salt water of different salinities under conditions of 20 DEG C of ground
It is demarcated with gear gear, obtains the relationship between salinity and impedance measurements under this condition, wherein gear number 0-6.
3. a kind of method that single layer formation water salinity is calculated based on producing profile testing technology according to claim 2,
It is characterized in that, in step S102, the top impedance for the perforation layer for having water yield that setting is measured using double water holding loggers
Full water spot measured value press perforation layer from bottom to top successively benefit be ZYDW1, ZYDW2 ..., ZYDWn, measured temperature correspond to TDOW1,
TDOW2 ..., TDOWn, perforation layer is followed successively by 1 from the bottom up, 2 ..., n, and only take a point between each perforation layer, utilize temperature
Angle value be corrected that temperature correction is demarcated to plate to each full water number of measuring point impedance by the temperature coefficient Kn of table 1 20 DEG C, are pressed
ZYDWCn=ZYDWn/Kn calculate, obtain the full water number ZYDWC1, ZYDWC2 of new impedance ..., ZYDWCn.
4. a kind of method that single layer formation water salinity is calculated based on producing profile testing technology according to claim 3,
It is characterized in that, in step S103, using after temperature correction the full water number ZYDWC1, ZYDWC2 of impedance ..., ZYDWCn checks and answers
The plate of instrument number and gear number obtains the pit shaft salinity of the point) QCW1, QCW2 ..., QCWn, and then surveyed using double water holdings
Well instrument parameter obtain perforation layer 1,2 ..., water yield QW1, QW2 of n ..., QWn.
5. a kind of method that single layer formation water salinity is calculated based on producing profile testing technology according to claim 4,
It is characterized in that, salinity calculates as follows in step S103:
1st to n perforation layer is accumulative to produce water SUMWATER=QW1+QW2+ ...+QWn；
Salinity above n-th of perforation layer weights SUMQCWn=SUM-WATER*QCWn；
The salinity CWH1=QCW1 of 1st perforation layer；
The salinity of n-th perforation layer is CWHn=(SUMQCWn-SUMQCWn-1)/QWn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811197775.7A CN109281665A (en) | 2018-10-15 | 2018-10-15 | A method of single layer formation water salinity is calculated based on producing profile testing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811197775.7A CN109281665A (en) | 2018-10-15 | 2018-10-15 | A method of single layer formation water salinity is calculated based on producing profile testing technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109281665A true CN109281665A (en) | 2019-01-29 |
Family
ID=65176897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811197775.7A Pending CN109281665A (en) | 2018-10-15 | 2018-10-15 | A method of single layer formation water salinity is calculated based on producing profile testing technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109281665A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5272444A (en) * | 1991-09-19 | 1993-12-21 | Texaco Inc. | Dielectric cross-plot water cut monitoring apparatus and method |
| CA2655407A1 (en) * | 2006-06-15 | 2007-12-21 | Phase Dynamics, Inc. | High water cut well measurements using heuristic salinity determination |
| CN101710089A (en) * | 2009-12-13 | 2010-05-19 | 西南石油大学 | Method for measuring water content and mineralization degree of ionic conductor and apparatus thereof |
| CN202850974U (en) * | 2012-09-20 | 2013-04-03 | 中稷油服(北京)科技有限公司 | Oil-gas-water three-phase output section logging instrument for low-yield liquid well |
-
2018
- 2018-10-15 CN CN201811197775.7A patent/CN109281665A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5272444A (en) * | 1991-09-19 | 1993-12-21 | Texaco Inc. | Dielectric cross-plot water cut monitoring apparatus and method |
| CA2655407A1 (en) * | 2006-06-15 | 2007-12-21 | Phase Dynamics, Inc. | High water cut well measurements using heuristic salinity determination |
| CN101710089A (en) * | 2009-12-13 | 2010-05-19 | 西南石油大学 | Method for measuring water content and mineralization degree of ionic conductor and apparatus thereof |
| CN202850974U (en) * | 2012-09-20 | 2013-04-03 | 中稷油服(北京)科技有限公司 | Oil-gas-water three-phase output section logging instrument for low-yield liquid well |
Non-Patent Citations (1)
| Title |
|---|
| 王成荣等: "双持水产液剖面反演地层水矿化度新方法", 《石油管材与仪器》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101892837B (en) | Formation factor determining method and oil saturation determining method | |
| CN104298883B (en) | A kind of method for building up of the hydrocarbon source rock hydrocarbon producing rate plate in oil and gas resource evaluation | |
| EP2447469B1 (en) | Quantitative calculation method for hydrocarbon saturation of fractured reservoir | |
| CN101487390B (en) | Archie mode method for confirming initial oil saturation of oil layer | |
| CN103792338B (en) | Method and device for determining organic carbon content of source rock | |
| CN101413388A (en) | Method for obtaining oil-water common-layer original oil-containing saturation degree and method for estimating non-test oil-water common-layer original oil-containing saturation degree | |
| CN107622139B (en) | Calculation method of crack permeability | |
| CN106066492B (en) | The bearing calibration that a kind of nuclear magnetic resonance log porosity echo sounding influences | |
| CN106050225A (en) | Method for determining 100% pure water spectrum through nuclear magnetic resonance logging spectrum T2 | |
| CN107780923B (en) | Method for establishing and simulating water saturation model based on argillaceous correction | |
| CN105952446B (en) | A kind of petroleum gas gas-bearing formation component content measuring method | |
| CN108194077B (en) | Gas logging total hydrocarbon correction method | |
| CN104345346A (en) | Method for obtaining crack width | |
| CN110043254B (en) | Method for obtaining stratum effective permeability based on cable stratum test data | |
| CN108918388A (en) | Aquifer solute dispersion coefficient and hole rate determination method | |
| CN110688781B (en) | Well logging interpretation method for low-permeability heterogeneous gas reservoir | |
| CN105931125A (en) | Method for predicting yield of compact oil staged multi-cluster volume fracturing horizontal well | |
| Doughty et al. | Signatures in flowing fluid electric conductivity logs | |
| CN112145165A (en) | Dynamic and static permeability conversion method for micro-crack-pore type reservoir | |
| CN101899973B (en) | Method for measuring formation water resistivity and device thereof | |
| CN108412488B (en) | Logging method for rapidly determining organic porosity of shale gas reservoir | |
| CN109281665A (en) | A method of single layer formation water salinity is calculated based on producing profile testing technology | |
| CN205538576U (en) | Permeability of rock tester | |
| CN109343133B (en) | Hole enlargement section porosity correction method based on two-dimensional nuclear magnetic resonance logging technology | |
| CN104675391B (en) | The method for calculating stratum oil saturation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190129 |