CN106066492A - A kind of bearing calibration of nuclear magnetic resonance log porosity echo sounding impact - Google Patents
A kind of bearing calibration of nuclear magnetic resonance log porosity echo sounding impact Download PDFInfo
- Publication number
- CN106066492A CN106066492A CN201610402156.1A CN201610402156A CN106066492A CN 106066492 A CN106066492 A CN 106066492A CN 201610402156 A CN201610402156 A CN 201610402156A CN 106066492 A CN106066492 A CN 106066492A
- Authority
- CN
- China
- Prior art keywords
- porosity
- echo sounding
- magnetic resonance
- nuclear magnetic
- impact
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/28—Processing seismic data, e.g. analysis, for interpretation, for correction
- G01V1/36—Effecting static or dynamic corrections on records, e.g. correcting spread; Correlating seismic signals; Eliminating effects of unwanted energy
- G01V1/362—Effecting static or dynamic corrections; Stacking
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/088—Investigating volume, surface area, size or distribution of pores; Porosimetry
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V2210/00—Details of seismic processing or analysis
- G01V2210/60—Analysis
- G01V2210/61—Analysis by combining or comparing a seismic data set with other data
- G01V2210/616—Data from specific type of measurement
- G01V2210/6169—Data from specific type of measurement using well-logging
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V2210/00—Details of seismic processing or analysis
- G01V2210/60—Analysis
- G01V2210/62—Physical property of subsurface
- G01V2210/624—Reservoir parameters
- G01V2210/6244—Porosity
Landscapes
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Remote Sensing (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Analytical Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Acoustics & Sound (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geophysics (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses the bearing calibration of a kind of nuclear magnetic resonance log porosity echo sounding impact, comprise the following steps: S1, acquisition study area target well section NMR logging data, carry out log data solving and compile, read measurement pattern and echo sounding, obtained the porosity of well logging condition by inverting；S2, target well section is carried out drilling and coring delivery, after pretreatment, carry out laboratory rock core routine porosity measurement；Carry out laboratory NMR porosity under different echo sounding after S3, saturated core to measure；NMR porosity and the scale relation of conventional orifices porosity under the conditions of S4, the different echo sounding of foundation；S5, echo sounding when obtaining logging operation according to step S1, and the scale relation set up according to step S4 carries out the correction of nuclear magnetic resonance log porosity echo sounding impact.The present invention can be corrected the echo sounding porosity that cause of impact is less than normal, the total porosity after correct, the computational accuracy of raising nuclear magnetic resonance log porosity.
Description
Technical field
The present invention relates to a kind of well logging porosity bearing calibration, concretely relate to a kind of complexity based on drilling core graduation
The bearing calibration of sandstone nuclear magnetic resonance log porosity echo sounding impact, belongs to oil exploration and development fields.
Background technology
Compared with other Log Methods, in nuclear magnetic resonance log direct detection stratum, the signal of proton, can obtain
Obtain extensive concern to geologic parameters such as formation porosity, permeability and fluid components, efficiently solve many complicated storages
The logging evaluation problem of layer.
Nuclear Magnetic Resonance Measurement is the improved relaxation behavior of nuclear spin signal, and the relaxation signals of these nuclear magnetic resonance, NMR is by hole
The impact of the factors such as clearance flow volume property, pore structure, instrument acquisition parameter.Wherein, echo sounding TE is to affect nuclear magnetic resonance, NMR to survey
The important parameter of well application effect, has been numerous studies, Xiao for echo sounding to the impact of NMR porosity both at home and abroad
Resolve etc. to show that echo sounding is the biggest for the experiment under different echo soundings of terrestrial facies argillaceous sandstone sample, NMR porosity
The biggest with conventional orifices porosity error, this is owing to when echo sounding is bigger, missing part short relaxation component information, causing core
Magnetic resonance porosity is less than normal.To this, Xiao Lizhi etc. advises that, to domestic Continental Reservoir, nuclear magnetic resonance apparatus is measured echo sounding and taken
0.3ms.At present the echo sounding of laboratory rock core nuclear magnetic resonance experiment can arrange below 0.2ms, and domestic outer core
Magnetic resonance well logging echo sounding is mostly higher than 0.6ms, as a example by Halliburton Company's MRIL-Prime NMR logging instrument, its
Echo sounding the shortest in measurement pattern is the 0.6ms of PR group, the minimum that can reach still greater than laboratory rock core nuclear magnetic resonance, NMR
Echo sounding.
Summary of the invention
It is an object of the invention to provide the bearing calibration of a kind of nuclear magnetic resonance log porosity echo sounding impact.
The adopted technical solution is that:
The bearing calibration of a kind of nuclear magnetic resonance log porosity echo sounding impact, comprises the following steps:
S1, acquisition study area target well section NMR logging data, carry out log data solving and compile, read measurement pattern
And echo sounding, the porosity of well logging condition is obtained by inverting；
S2, target well section is carried out drilling and coring delivery, after pretreatment, carry out laboratory rock core routine porosity measurement；
Carry out laboratory NMR porosity under different echo sounding after S3, saturated core to measure；
The nuclear-magnetism experimental data recorded under the conditions of S4, the different echo sounding of analysis, sets up core under the conditions of different echo sounding
Magnetic resonance porosity and the scale relation of conventional orifices porosity；
S5, echo sounding when obtaining logging operation according to step S1, and the scale relation set up according to step S4 enters
The correction of row nuclear magnetic resonance log porosity echo sounding impact.
Preferably, in step S1: NMR logging data is carried out multi-exponential Inversion and obtains the hole under well logging condition
Degree, this porosity refers to the nuclear magnetic resonance log total porosity without echo sounding impact correction.
Preferably, in step S3: the setting of echo sounding includes the echo sounding used by well-log information and rock core nuclear-magnetism altogether
Shake the echo sounding of experimental analysis.
Preferably, in step S3: the salt water salinity used by saturated core is consistent with salinity in the water analysis data of area.
Preferably, in step S4: the rock core NMR porosity recorded under the conditions of the different echo sounding of contrast and routine
Porosity, is set up NMR porosity and the scale relation of conventional orifices porosity under the conditions of different echo sounding, is intended by data
Close the NMR porosity correction coefficient obtained under different echo sounding.
Preferably, in step S5: according to the echo sounding during logging operation obtained, find in step S4 between corresponding echo
The correction coefficient of NMR porosity under the conditions of every, thus the nuclear magnetic resonance log porosity of gained in step S1 is carried out back
Wave spacing impact correction, the porosity after being corrected.
The method have the benefit that:
The present invention can be corrected the echo sounding porosity that cause of impact is less than normal, the total porosity after being corrected,
Improving the computational accuracy of nuclear magnetic resonance log porosity, the nuclear magnetic resonance log porosity for Complicated Sandstone Reservoirs accurately calculates
Significant.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet that the present invention carries out echo sounding impact correction to nuclear magnetic resonance log porosity；
Fig. 2 is somewhere target well section experiment rock sample rock core nuclear magnetic resonance, NMR under different echo soundings in the embodiment of the present invention
Porosity and conventional orifices porosity comparison diagram；Echo sounding TE=0.1ms in Fig. 2 a, echo sounding TE=0.2ms, Fig. 2 c in Fig. 2 b
Middle echo sounding TE=0.3ms, echo sounding TE=0.6ms in Fig. 2 d, echo sounding TE=0.9ms in Fig. 2 e, return in Fig. 2 f
Wave spacing TE=1.2ms；
Fig. 3 is somewhere target well section rock sample NMR porosity correction coefficient cartogram in the embodiment of the present invention；
Fig. 4 is somewhere target well section rock sample nuclear magnetic resonance experiment porosity correction design sketch in the embodiment of the present invention；Figure
Echo sounding TE=1.2ms in echo sounding TE=0.9ms in 4a, Fig. 4 b；
Fig. 5 is somewhere target well section nuclear magnetic resonance log porosity correction design sketch in the embodiment of the present invention.
Detailed description of the invention
The present invention is primarily to solve to cause in nuclear magnetic resonance log the short relaxation component of part owing to echo sounding is excessive
Leakage so that the problem that nuclear magnetic resonance log total porosity is less than normal, by i.e. based on drilling core graduation the complicated sandstone core of the method
The bearing calibration of magnetic resonance well logging porosity echo sounding impact, carries out school to the echo sounding porosity that causes of impact is less than normal
Just, the total porosity after being corrected, improves the computational accuracy of nuclear magnetic resonance log porosity.
The invention will be further described with detailed description of the invention below in conjunction with the accompanying drawings:
As it is shown in figure 1, the impact of a kind of complicated sandstone nuclear magnetic resonance log porosity echo sounding based on drilling core graduation
Bearing calibration, comprises the following steps:
S1, acquisition study area target well section NMR logging data, carry out log data solving and compile, read measurement pattern
And echo sounding, by multi-exponential Inversion obtain under well logging condition regarding total porosity.In Fig. 5 the 5th road dotted line show without
The nuclear magnetic resonance log total porosity of correction, compared with Physical Property Analysis porosity, nuclear magnetic resonance, NMR total porosity now is the most inclined
Little, need to carry out corresponding correction process.
S2, target well section is carried out drilling and coring delivery, obtain conglomerate, seriate sandstone and packsand rock core, open after pretreatment
Exhibition laboratory rock core routine porosity measurement.
S3, according to study area target well section formation water salinity data, prepare consistent with study area formation water salinity
20000ppm sodium chloride solution, carries out laboratory nuclear magnetic resonance, NMR rock core and measures after saturated core.Study area target well section nuclear-magnetism is altogether
Shake well logging used by echo sounding be 0.9ms, laboratory rock core nuclear magnetic resonance experiment echo sounding select respectively 0.1ms, 0.2ms,
0.3ms, 0.6ms, 0.9ms, 1.2ms, the waiting time selects 6s, echo number 4096, scanning times 128 times.Fig. 2 show not
With rock core NMR porosity under the conditions of echo sounding and conventional orifices porosity measurement result.
S4, according to rock core NMR porosity under the conditions of the different echo soundings of above-mentioned gained and conventional porosity measurement
As a result, when echo sounding is within 0.3ms, rock core NMR porosity and conventional orifices porosity are basically identical, it is not necessary to enter
Row correction, but when echo sounding is bigger, there is trend less than normal in NMR porosity, along with echo sounding increases, nuclear-magnetism
The resonance holes porosity lithology increasing and different with the deviation of conventional orifices porosity is different by echo sounding effect,
Accordingly by regression analysis by the correction coefficient of NMR porosity under the conditions of the different echo sounding of lithology foundation.Fig. 3 is for grinding
Study carefully the rock core of the three kinds of lithology in the district NMR porosity correction coefficient under the conditions of different echo soundings.
Correction coefficient under the conditions of the different echo soundings that S5, foundation step S4 are set up, to rock core nuclear magnetic resonance experiment
Porosity is corrected, and Fig. 4 is the nuclear magnetic resonance, NMR under 0.9ms and 1.2ms echo sounding respectively of the rock core in the embodiment of the present invention
Experimental port porosity calibration result figure, compared with before correction in Fig. 2, the porosity after correction is more nearly with conventional orifices porosity, greatly
Improve greatly the accuracy of rock core NMR porosity.This study area target well is obtained according to nuclear magnetic resonance log raw data
Echo sounding used by section well logging is 0.9ms, surveys well logging lithologic analysis result according to target well section, is set up according to step S4
Under the conditions of 0.9ms echo sounding, target well section nuclear magnetic resonance log porosity is corrected obtaining by the correction coefficient of different lithology
Porosity after correction.In Fig. 5, the 5th road is shown in solid surveys for the target well section nuclear magnetic resonance, NMR after correction in the embodiment of the present invention
Wellhole porosity, wherein 102 and No. 103 floor survey well logging Lithology Discrimination result is conglomerate, echo sounding 0.9ms, corresponding step S4 institute
The correction coefficient set up is 1.15, and calibrated rear NMR porosity is more nearly with Physical Property Analysis porosity, and accuracy obtains
To significantly improving.
Certainly, only embodiments of the invention described above, it is not limited to the present invention, for the technology of this area
For personnel, the present invention can have various modifications and variations.It should be noted that, any those of ordinary skill in the art are at this
Under the guidance of description, all equivalent replacements made, obvious variant and improvement etc., all fall within the essence of this specification
Within the scope of, ought to be protected by the present invention.
Claims (6)
1. the bearing calibration of a nuclear magnetic resonance log porosity echo sounding impact, it is characterised in that comprise the following steps:
S1, obtain study area target well section NMR logging data, carry out log data solving and compile, read measurement pattern and return
Wave spacing, obtains the porosity of well logging condition by inverting；
S2, target well section is carried out drilling and coring delivery, after pretreatment, carry out laboratory rock core routine porosity measurement；
Carry out laboratory NMR porosity under different echo sounding after S3, saturated core to measure；
The nuclear-magnetism experimental data recorded under the conditions of S4, the different echo sounding of analysis, under the conditions of setting up different echo sounding, nuclear-magnetism is altogether
The scale relation of porosity and the conventional orifices porosity of shaking；
S5, echo sounding when obtaining logging operation according to step S1, and the scale relation set up according to step S4 carries out core
The correction of magnetic resonance well logging porosity echo sounding impact.
The bearing calibration of a kind of nuclear magnetic resonance log porosity echo sounding the most according to claim 1 impact, its feature
It is, in step S1: NMR logging data is carried out multi-exponential Inversion and obtains the porosity under well logging condition, this porosity
Refer to the nuclear magnetic resonance log total porosity without echo sounding impact correction.
The bearing calibration of a kind of nuclear magnetic resonance log porosity echo sounding the most according to claim 1 impact, its feature
It is, in step S3: the setting of echo sounding includes the echo sounding used by well-log information and rock core nuclear magnetic resonance experiment analysis
Echo sounding.
The bearing calibration of a kind of nuclear magnetic resonance log porosity echo sounding the most according to claim 1 impact, its feature
It is, in step S3: the salt water salinity used by saturated core is consistent with salinity in the water analysis data of area.
The bearing calibration of a kind of nuclear magnetic resonance log porosity echo sounding the most according to claim 1 impact, its feature
It is, in step S4: the rock core NMR porosity recorded under the conditions of the different echo sounding of contrast and conventional orifices porosity, sets up
Under the conditions of different echo soundings, NMR porosity and the scale relation of conventional orifices porosity, obtain different returning by data matching
NMR porosity correction coefficient under wave spacing.
The bearing calibration of a kind of nuclear magnetic resonance log porosity echo sounding the most according to claim 5 impact, its feature
It is, in step S5: according to the echo sounding during logging operation obtained, finds in step S4 core under the conditions of corresponding echo sounding
The correction coefficient of magnetic resonance porosity, thus the nuclear magnetic resonance log porosity of gained in step S1 is carried out echo sounding impact
Correction, the porosity after being corrected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610402156.1A CN106066492B (en) | 2016-06-06 | 2016-06-06 | The bearing calibration that a kind of nuclear magnetic resonance log porosity echo sounding influences |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610402156.1A CN106066492B (en) | 2016-06-06 | 2016-06-06 | The bearing calibration that a kind of nuclear magnetic resonance log porosity echo sounding influences |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106066492A true CN106066492A (en) | 2016-11-02 |
| CN106066492B CN106066492B (en) | 2018-05-22 |
Family
ID=57421230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610402156.1A Active CN106066492B (en) | 2016-06-06 | 2016-06-06 | The bearing calibration that a kind of nuclear magnetic resonance log porosity echo sounding influences |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106066492B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106383365A (en) * | 2016-10-28 | 2017-02-08 | 中国地质大学（北京） | Method for correcting nuclear magnetic resonance porosity of igneous rock by means of plate |
| CN106930754A (en) * | 2017-04-20 | 2017-07-07 | 长江大学 | A kind of nuclear magnetic resonance log collecting method of reservoir self adaptation |
| CN108873082A (en) * | 2018-05-08 | 2018-11-23 | 中国石油大学(华东) | A kind of compact rock core NMR porosity bearing calibration considering relaxation component section |
| CN109031437A (en) * | 2018-08-10 | 2018-12-18 | 中国石油大学(北京) | With brill nmr spin echo bearing calibration and device |
| CN109147449A (en) * | 2018-08-10 | 2019-01-04 | 中国石油大学(北京) | With the analogy method and device for boring nuclear magnetic resonance vibration and rotation |
| CN110410058A (en) * | 2019-06-20 | 2019-11-05 | 中石化石油工程技术服务有限公司 | A method of correction core experiment result scale two dimension nuclear magnetic resonance log |
| CN111220522A (en) * | 2019-10-28 | 2020-06-02 | 中国石油大学(华东) | Core scale logging calculation method for hydrate saturation of high-argillaceous fine-grained sediment |
| CN111350490A (en) * | 2020-03-16 | 2020-06-30 | 中国石油天然气集团有限公司 | Method for obtaining true parameters of stratum based on logging information |
| CN113588704A (en) * | 2021-08-01 | 2021-11-02 | 西南石油大学 | Separation method of nuclear magnetic resonance signals of immiscible fluid in rock core |
| CN114428049A (en) * | 2021-09-13 | 2022-05-03 | 中国石油化工股份有限公司 | Method for calculating asphalt content of ancient carbonate reservoir |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030006767A1 (en) * | 2001-06-29 | 2003-01-09 | Georgi Dan T. | Method for correcting downhole NMR data contaminated by borehole signals |
| US20060033491A1 (en) * | 2004-08-16 | 2006-02-16 | Baker Hughes Incorporated | Correction of NMR artifacts due to constant-velocity axial motion and spin-lattice relaxation |
| CN1806182A (en) * | 2003-05-09 | 2006-07-19 | 贝克休斯公司 | Time-domain data integration of multiple gradient,multiple TE echo trains |
| CN102565865A (en) * | 2011-12-07 | 2012-07-11 | 中国石油大学(北京) | Method and device for obtaining noise-reducing NMR (Nuclear Magnetic Resonance) logging echo signal |
| CN103674811A (en) * | 2013-12-25 | 2014-03-26 | 中国石油天然气集团公司 | Method, device and system for correcting measurement of nuclear magnetic resonance porosities |
| CN105114063A (en) * | 2015-08-04 | 2015-12-02 | 中国石油大学(华东) | Inclined-well dual laterolog curve correction method |
| CN105240001A (en) * | 2015-09-23 | 2016-01-13 | 中国石油大学(北京) | Method and device for correcting nuclear magnetic resonance logging porosity |
-
2016
- 2016-06-06 CN CN201610402156.1A patent/CN106066492B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030006767A1 (en) * | 2001-06-29 | 2003-01-09 | Georgi Dan T. | Method for correcting downhole NMR data contaminated by borehole signals |
| CN1806182A (en) * | 2003-05-09 | 2006-07-19 | 贝克休斯公司 | Time-domain data integration of multiple gradient,multiple TE echo trains |
| US20060033491A1 (en) * | 2004-08-16 | 2006-02-16 | Baker Hughes Incorporated | Correction of NMR artifacts due to constant-velocity axial motion and spin-lattice relaxation |
| CN102565865A (en) * | 2011-12-07 | 2012-07-11 | 中国石油大学(北京) | Method and device for obtaining noise-reducing NMR (Nuclear Magnetic Resonance) logging echo signal |
| CN103674811A (en) * | 2013-12-25 | 2014-03-26 | 中国石油天然气集团公司 | Method, device and system for correcting measurement of nuclear magnetic resonance porosities |
| CN105114063A (en) * | 2015-08-04 | 2015-12-02 | 中国石油大学(华东) | Inclined-well dual laterolog curve correction method |
| CN105240001A (en) * | 2015-09-23 | 2016-01-13 | 中国石油大学(北京) | Method and device for correcting nuclear magnetic resonance logging porosity |
Non-Patent Citations (3)
| Title |
|---|
| 吴丰 等: ""昆北地区储层核磁共振孔隙度偏低分析及校正"", 《特种油气藏》 * |
| 周灿灿 等: ""核磁共振测井数据常规处理方法"", 《复杂碎屑岩测井岩石物理与处理评价》 * |
| 王忠东 等: ""核磁共振弛豫信号多指数反演新方法及其应用"", 《中国科学》 * |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106383365B (en) * | 2016-10-28 | 2019-03-19 | 中国地质大学（北京） | A method of igneous rock NMR porosity is corrected using plate |
| CN106383365A (en) * | 2016-10-28 | 2017-02-08 | 中国地质大学（北京） | Method for correcting nuclear magnetic resonance porosity of igneous rock by means of plate |
| CN106930754A (en) * | 2017-04-20 | 2017-07-07 | 长江大学 | A kind of nuclear magnetic resonance log collecting method of reservoir self adaptation |
| CN108873082A (en) * | 2018-05-08 | 2018-11-23 | 中国石油大学(华东) | A kind of compact rock core NMR porosity bearing calibration considering relaxation component section |
| WO2019214267A1 (en) * | 2018-05-08 | 2019-11-14 | 中国石油大学(华东) | Compact core magnetic resonance porosity correction method considering relaxation component sections |
| CN109147449B (en) * | 2018-08-10 | 2020-06-09 | 中国石油大学(北京) | Simulation method and device for nuclear magnetic resonance vibration and rotation while drilling |
| CN109031437A (en) * | 2018-08-10 | 2018-12-18 | 中国石油大学(北京) | With brill nmr spin echo bearing calibration and device |
| CN109147449A (en) * | 2018-08-10 | 2019-01-04 | 中国石油大学(北京) | With the analogy method and device for boring nuclear magnetic resonance vibration and rotation |
| CN110410058A (en) * | 2019-06-20 | 2019-11-05 | 中石化石油工程技术服务有限公司 | A method of correction core experiment result scale two dimension nuclear magnetic resonance log |
| CN111220522A (en) * | 2019-10-28 | 2020-06-02 | 中国石油大学(华东) | Core scale logging calculation method for hydrate saturation of high-argillaceous fine-grained sediment |
| CN111350490A (en) * | 2020-03-16 | 2020-06-30 | 中国石油天然气集团有限公司 | Method for obtaining true parameters of stratum based on logging information |
| CN111350490B (en) * | 2020-03-16 | 2023-11-28 | 中国石油天然气集团有限公司 | Stratum true parameter solving method based on logging data |
| CN113588704A (en) * | 2021-08-01 | 2021-11-02 | 西南石油大学 | Separation method of nuclear magnetic resonance signals of immiscible fluid in rock core |
| CN113588704B (en) * | 2021-08-01 | 2023-10-27 | 西南石油大学 | Nuclear magnetic resonance signal separation method for immiscible fluid in core |
| CN114428049A (en) * | 2021-09-13 | 2022-05-03 | 中国石油化工股份有限公司 | Method for calculating asphalt content of ancient carbonate reservoir |
| CN114428049B (en) * | 2021-09-13 | 2022-07-26 | 中国石油化工股份有限公司 | Method for calculating asphalt content of ancient carbonate reservoir |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106066492B (en) | 2018-05-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106066492B (en) | The bearing calibration that a kind of nuclear magnetic resonance log porosity echo sounding influences | |
| CN101126816B (en) | NMR method for measuring flow rate of a wellbore and its uses | |
| US6703832B2 (en) | Method for detecting hydrocarbons by comparing NMR response at different depths of investigation | |
| US7804297B2 (en) | Methodology for interpretation and analysis of NMR distributions | |
| US8330460B2 (en) | Method and apparatus for determining multiscale similarity between NMR measurements and a reference well log | |
| AU2014216339B9 (en) | Estimating adsorbed gas volume from NMR and dielectric logs | |
| Knight et al. | Field experiment provides ground truth for surface nuclear magnetic resonance measurement | |
| US11435304B2 (en) | Estimating downhole fluid volumes using multi-dimensional nuclear magnetic resonance measurements | |
| US6933719B2 (en) | Fluid flow properties from acoustically stimulated NMR | |
| MX2008008999A (en) | Weatherable multilayer film. | |
| US7603237B2 (en) | Method for analyzing data having shared and distinct properties | |
| WO2013066953A2 (en) | Statistical analysis of combined log data | |
| MXPA06003671A (en) | System and methods for t1-based logging. | |
| US10739489B2 (en) | Low gradient magnetic resonance logging for measurement of light hydrocarbon reservoirs | |
| US8781745B2 (en) | NMR-DNA fingerprint | |
| BRPI0809121A2 (en) | DETERMINATION OF GAS SATURATION RADIAL PROFILE FROM MULTI-FREQUENCY NMR DATA | |
| US20160047935A1 (en) | Systems and methods for estimation of hydrocarbon volumes in unconventional formations | |
| Liang et al. | Tight gas sandstone reservoirs evaluation from nuclear magnetic resonance (NMR) logs: case studies | |
| NO20120654A1 (en) | Method and device for incorporation of internal gradient and limited diffusion in NMR inversion by well logging | |
| Hürlimann et al. | NMR well logging | |
| AU2017204581A1 (en) | Nuclear magnetic resonance tool calibration | |
| Delhomme | The quest for permeability evaluation in wireline logging | |
| Bacciarelli et al. | Focused Nuclear Magnetic Resonance | |
| Zohreh et al. | The evaluation of borehole imaging result comparing with cores in Sarvak fractured and non-fractured reservoir | |
| US20230068555A1 (en) | Correction of distorted gradient distributions in nuclear magnetic resonance logging |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |