CN108442927A - Landwaste porosity measurement method, measuring device and the application of site mud logging application - Google Patents
Landwaste porosity measurement method, measuring device and the application of site mud logging application Download PDFInfo
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- CN108442927A CN108442927A CN201810198614.3A CN201810198614A CN108442927A CN 108442927 A CN108442927 A CN 108442927A CN 201810198614 A CN201810198614 A CN 201810198614A CN 108442927 A CN108442927 A CN 108442927A
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- landwaste
- volume
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- liquid
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B49/005—Testing the nature of borehole walls or the formation by using drilling mud or cutting data
Abstract
The invention discloses the landwaste porosity measurement methods and measuring device of a kind of application of site mud logging, including obtain total volume Vb, obtain the pore volume V of chip sampleP：Chip sample is immersed in bath foam, and measures the NMR signal of liquid in hole with Nuclear Magnetic Resonance；The amplitude of magnetic resonance signal from the intrapore liquid of landwaste is proportional to the volume of the liquid, therefore semaphore is proportional to the volume of hole, and the volume in the corresponding hole of signal amplitude is determined by calibration；Calculate porosity：Porosity is calculated by following formula：By the present invention in that do sample treatment and magnetic nuclear resonance method with a kind of bath foam realizes, quick, nondestructive measurement accurate to the landwaste porosity of collection jointly.The device provided simultaneously is related to collection and the test whole process of landwaste, can also realize measurement while drilling and mutually be compareed with other logging methods.
Description
Technical field
The present invention relates to the fields of measurement of reservoir properties in evaluating reservoir, and it is broken to be mainly used as drill bit in measurement drilling process
, the measurement of the porosity of the landwaste for being brought to by circulation of drilling fluid ground, specially the landwaste hole of site mud logging application
Spend measurement method, measuring device and application.
Background technology
Well logging：Various relevant informations in record, admission drilling process.Mud logging techniques be in oil-gas exploration and development activity most
Basic technology is to find, assess most timely, the most direct means of oil-gas reservoir, has acquisition subsurface information timely, various, point
Quick feature is explained in analysis.
Porosity is one of the important parameter of reservoir properties research, applies wide porosity measurement method main at present
Have：(1) core experiment room measures, and this method directly reflects stratum characteristic, but due to coring take it is expensive and some under the conditions of
(such as horizontal well) coring is difficult, so being often difficult to obtain continuous sampling sample.(2) method of geophysical log can be surveyed
Wide range is measured, but by sound wave, the signals such as electric current measure indirectly, and measurement range is big, is unable to fine meter sign stratum characteristic.
The major defect of conventional method is that time-consuming and needs drilling well completion that could measure.And drilling measuring technology in recent years
Development is included in drill bit and nearby installs high-precision sensor etc., real-time evaluating reservoir can be carried out in drilling process.
The landwaste that drill bit is broken in drilling process, is brought to by circulation of drilling fluid ground can provide many useful
Formation information.A variety of direct informations such as lithology, physical property, mechanicalness and the oiliness on stratum can be obtained from landwaste.Landwaste is available
The quantitative assessment of reservoir in drilling course goes correction to log well with the formation parameter of near real-time.
The research that nuclear magnetic resonance (NMR) method measures porosity has been widely used in lab analysis and scene record
Well, it the advantages of be it is quick, it is accurately, lossless.Theoretically NMR methods can measure the fluid in the hole in landwaste, but by
It is small in single landwaste, measuring signal amount is too small, thus be difficult to obtain reliable signal-to-noise ratio, and be present in landwaste outer surface
Intergranular fluid is measured to simultaneously, this segment fluid flow accounts for significant proportion and cannot be ignored for landwaste, and uses relaxation
Time can not clearly distinguish the two, especially when the landwaste porosity is smaller, the unwanted signal outside hole is possible
It is more much better than than the desired signal in hole.
There are many methods that people proposes some removal cutting grain surfactant fluids based on laboratory condition.But at these
In the sample preparation procedure of method, the liquid of the unknown number in hole may also be removed or outside liquid residual compared with
Greatly, and cumbersome it is dfficult to apply to scene.
In short, quick obtaining landwaste information is highly useful, it can provide the real-time information of drilling process, and real
Test the too cumbersome requirement that cannot meet live complex condition and quickly measure of room method.
Invention content
For overcome the deficiencies in the prior art, the present invention provides a kind of landwaste porosity measurement side of site mud logging application
Method, measuring device and application, the device that this method provides is related to collection and the test whole process of landwaste, by using a kind of spy
Different bath foam does sample treatment and magnetic nuclear resonance method realizes that the landwaste collected to site mud logging is accurate jointly, quickly, lossless survey
Amount.The device can also realize measurement while drilling and mutually be compareed with other logging methods.
The technical solution adopted by the present invention to solve the technical problems is：
The landwaste porosity measurement method of site mud logging application of the present invention, the method includes the following steps：
1) the chip sample total volume V containing hole that site mud logging obtains, is obtainedb；
2) the pore volume V for the chip sample containing hole that site mud logging obtains, is obtainedP：Site mud logging is obtained
Chip sample containing hole is immersed in bath foam, and the NMR signal of liquid in hole is measured with Nuclear Magnetic Resonance；
The liquid in hole will not be made substituted for the bath foam and liquid be stained with from landwaste outside is unmixing and density is different；It comes from
The amplitude of the magnetic resonance signal of the intrapore liquid of landwaste is proportional to the volume of the liquid, therefore the volume of semaphore and hole
It is proportional, the volume in the corresponding hole of signal amplitude is determined by calibration；
3) porosity, is calculated：Porosity is calculated by following formula：
VPFor sample pore volume, VbPopulation of samples accumulates.
The method of the invention is applied to measure multiple clast samples in irregular shape, or for single in irregular shape
The measurement of sample；Or be repeated several times and measure, and the average value of porosity is obtained using average value.
Preferably, a diameter of 3mm-5mm of the chip sample of the present invention containing hole.
Preferably, bath foam of the present invention is perfluocarbon solution.
It is further preferred that the perfluocarbon solution is the mixture of perfluorinated trialkyl amine, density 1.85g/
cm3。
Alternatively, the perfluocarbon solution is perfluoropolyether, density 1.892g/cm3。
Invention also provides a kind of landwaste porosity measuring devices of site mud logging application, including are used to detect volume
Volume detecting system, the volume detecting system includes measuring appliance and NMR instrument, and the measuring appliance, which is one, has flat bottom
The tubular container on side, measuring appliance activity are positioned in NMR instrument.
There are one liquid level charactron with a scale, the bottom of liquid level charactron and the inside phases of measuring appliance for installation in measuring appliance
Unicom forms a linker, and being marked on liquid level charactron has, and the scale shows the position of liquid level to determine volume；By
In liquid level charactron diameter very little, it can be used for clearly measuring micro volume variation.
Described device includes the collection system for collecting landwaste and the volume detecting system for detecting volume, and is used for
The piece-rate system detached after detection, collection system include slush pump, vibrating screen and sample divider；Mud is entered by slush pump
Vibrating screen, from mud and landwaste, the landwaste that is detached enters collector from vibrating screen lower end and is collected vibrosieve；Vibrating screen by
One replaceable sieve and a cleaning system select screen mesh size to detach mud and drilling cuttings, and screen mesh size determines guarantor
The size of the landwaste stayed；Cleaning system fully brings bottoms up surface mud, and receipts are transported to by the accumulator tank landwaste of vibrating screen
Storage, collector include two collection vessels, and two are used alternatingly and achieve the purpose that uninterruptedly to sample；Drilling well is full of in collector
Liquid ensures that liquid is not lost in landwaste hole；The landwaste being collected into is sent into the porosity that volume measuring system tests out landwaste；It surveys
Landwaste, bath foam and drilling fluid are detached by precipitation vessel after amount, achieve the purpose that recycle bath foam.
The application of the landwaste porosity measuring device of site mud logging of the present invention application is：
1) enough perfluocarbon solution, is first poured into measuring appliance reads liquid level as bath foam and by liquid level charactron
Corresponding volume is first time volume；
2), site mud logging obtain the chip sample containing hole, in its hole include underground oil/water and drilling fluid,
And there are some drilling fluids outside it, the chip sample containing hole that site mud logging obtains, which is put into no nuclear magnetic signal, to be done
In the silk screen disturbed, then they are put by bottom suitable position from the upper end opening of measuring appliance by rope；Outside landwaste
Drilling fluid and some floating materials detached and swim in fluorination liquid on, use scale read fluorination liquid and drilling fluid between boundary
The corresponding volume in position in face is second of volume；The volume for the landwaste being put into passes through second of volume and first time volume
Volume differences acquire；
3), measuring appliance is placed in the measuring probe of NMR instrument, suitable landwaste is selected according to instrument effective range
Sample size size and adjust present position so that landwaste fully occupies the effective range of magnet measuring probe, and to the greatest extent
Amount reduces measurement error.It selects the amount of suitable bath foam to make it that can not only be totally submerged sample, also to make the drilling well separated
Liquid is not in magnetic field range；It is measured by H NMR spectroscopy instrument1H NMR check the fluid in the hole of landwaste 9；Due to from landwaste surface
The drilling fluid of separation floats on top and exceeds nuclear magnetic resonance apparatus detection range, therefore measure1Total amplitude of H NMR signals is only
The fluid in hole can obtain the volume of 9 intrapore fluid of landwaste by correction course, to obtain its pore-body
Product；
4) porosity of landwaste, is calculated by formula (1).
In the water of unit volume the quantity of hydrogen atom in the oil of unit volume the quantity of hydrogen atom be slightly different, work as hole
When the hydrogen atom content of fluid per unit volume in gap is differed with the aqueous salt for calibration, determining for porosity may
There is a deviation, correcting unit volume of oil can be distinguished by oil saturation, water hydrogen atom quantity accurately calculates pore volume and hole
Porosity.
Present invention improves over a kind of to measure the method for rock porosity so that it can for scene using magnetic resonance (NMR)
Landwaste porosity measurement.This method is that the landwaste of acquisition is immersed in a certain amount of bath foam, which meets claimed below：No
Liquid in hole can be made substituted, and be stained with liquid is unmixing outside landwaste and density is different, without pore-fluid for into
The resonant nucleus of row Nuclear Magnetic Resonance Measurement.By the way that sample is immersed in bath foam and is measured in hole with nuclear magnetic resonance (NMR) instrument
The NMR signal of liquid.
Formation rock hole often contains formation fluid, wherein tool element comprising there are many can be used for Nuclear Magnetic Resonance Measurement, often
Have1H,23Na etc..Bath foam will not enter hole, since there are the fluids on density contrast landwaste surface to be detached with bath foam.Thus
The semaphore that fluid generates in landwaste hole can be accurately measured with nuclear magnetic resonance.
The amplitude of magnetic resonance signal from the intrapore liquid of landwaste is proportional to the volume of the liquid, therefore semaphore
It is proportional to the volume of hole.The volume being assured that by calibration in the corresponding hole of signal amplitude.
Chip sample total volume can be obtained by calculating.As the graduated cylinder of laboratory, for filling chip sample and bath foam
Measuring appliance put on scale to indicate the volume in it, can read in this way be added rock sample after fluid change.
Once known sample totality and pore volume, porosity can be calculated by following formula
VPSample pore volume, VbPopulation of samples accumulates.This method can be applied not only to measure multiple clast samples in irregular shape
Product, it can also be used to the measurement of single sample in irregular shape.Measurement can also be repeated several times, and hole is obtained using average value
The average value of degree.
The collection of landwaste and some problems during porosity measurement in drilling process detailed herein.Drilling fluid
It is the COMPLEX MIXED liquid of various solid phases, liquid phase and organic additive.If using water-base drilling fluid in drilling process, this meaning
Taste, which drilling fluid, to be salting liquid and may contain the material for increasing viscosity.If using oil base drilling fluid, drilling fluid
May include oil soluble surfactant and other compositions and oil.Landwaste is that drill bit cuts to form carg, these landwaste
It is that the porous blowhole for being especially reservoir is more preferable mostly, is filled by formation fluid in hole.When drill bit drills rock stratum
When, landwaste comes into full contact with drilling fluid, some liquid phases of drilling fluid enter the hole of formation rock.Therefore, in landwaste hole
Liquid can be saline groundwater, oil, the liquid phase of drilling fluid or these combination.Usually in landwaste outside it and between landwaste between
Also there are some liquid in gap, can be drilling fluid, saline groundwater or crude oil or these combination.
On how to select the landwaste that can represent stratum characteristic to have many researchs.It can be selected, be tested according to size
Room measurement result shows that the porosity accuracy measured when landwaste diameter is less than 2.5mm is poor, and magnetic nuclear resonance method measures rock
Porosity 3mm sizes are very representative is matched with porosity preferably for bits.The cutting grain migration rate when selected be relatively large in diameter
It differs greatly with drilling fluid, it is difficult to determine collected landwaste depth.Selection should also avoid abnormal big landwaste, suspect they due to
Hole instability is detached from from the wall of a borehole, therefore cannot represent the current stratum cut by drill bit, usually passes through the sieve of 5mm
Landwaste and the landwaste of avalanche to be separated.Therefore select the landwaste of diameter 3mm-5mm as research object herein.
This method achievees the effect that remove surfactant fluid by being immersed in landwaste in specific bath foam.This bath foam is
It is selected relative to the liquid in rock characteristic and hole, in the presence of pore-fluid, it neither in hole
Liquid is miscible, will not soak the rock, it will not be entered hole dilution by capillary imbibition or replaced in these holes in this way
Fluid.And there is different density, in this way, the liquid outside when rock sample is immersed in bath foam is separated from and floats
It floats to the surface of bath foam, or if dense enough, is deposited to the bottom of bath foam.
Here required non-wetted behavior depends on the property of bath foam, the liquid in hole and rock itself.When two kinds not
When miscible liquid is contacted with the surface of solids, the contact angle between liquid and the surface of solids is less than 90 ° of generation moistened surface.Such as
Fruit drilling fluid is water base, and rock stratum is that strong water is wet at this, then the liquid in the hole of landwaste will be aqueous, need to select thin
Waterborne liquid makees bath foam.On the contrary, if drilling fluid is oil base, rock stratum is that oil is wet, then the liquid in landwaste hole is to come from
The oil of drilling fluid, optional hydrophilic bath foam.But under the conditions of complex formation, rock wettability is also complex, some classes
The rock of type all shows as that water is wet and oil is wet simultaneously, and rock wettability can change under the intrusion of the foreign liquids such as drilling fluid
Become【12】.Various stratum are further encountered in drilling process, it is therefore desirable to which it is non-wetted to meet a variety of rocks to select suitable bath foam
Condition.
Liquid perfluorocarbon is a kind of emerging green solvent, it is that hydrogen atom on carbon atom is all replaced by fluorine atoms
Alkane, ether and amine.Its boiling spread is big, is a kind of high density, colourless nontoxic, with high heat stability liquid,
It is characterized in low-refraction, low surface tension and low-k, unmixing with water, aqueous solution and a series of hydrocarbon ils, this makes it
As ideal bath foam.Common perfluocarbon solution has " Fluorinert " series of fluids in the market, is commonly called as the perfluor of fluorination liquid
Change the mixture of trialkylamine, density 1.85g/cm3, also it is commonly called as the perfluoropolyether of fluorocarbon oil, density 1.892g/cm3.Herein
The desk-top 2MHz H NMR spectroscopies instrument used in method, magnetic field is provided by permanent magnet, sufficiently small, and scene is convenient, flexible, can also with it is existing
Field nuclear magnetic resonance log compares.
Thus, the device that this method provides is related to collection and the test whole process of landwaste, by using a kind of special
Bath foam does sample treatment and magnetic nuclear resonance method and realizes, quick, nondestructive measurement accurate to the landwaste of collection jointly.The device also may be used
To realize measurement while drilling and mutually be compareed with other logging methods.
Description of the drawings
Fig. 1 is a kind of landwaste porosity measuring device structural schematic diagram of site mud logging application of the present invention.
Fig. 2 is the volume detection system structure of the present invention for detecting volume.
Fig. 3 is the overlooking structure diagram of measuring appliance.
Specific implementation mode
The landwaste porosity measurement method of site mud logging application, the method includes the following steps：
1) the chip sample total volume V containing hole that site mud logging obtains, is obtainedb；
2) the pore volume V for the chip sample containing hole that site mud logging obtains, is obtainedP：Site mud logging is obtained
Chip sample containing hole is immersed in bath foam, and the NMR signal of liquid in hole is measured with Nuclear Magnetic Resonance；
The liquid in hole will not be made substituted for the bath foam and liquid be stained with from landwaste outside is unmixing and density is different；It comes from
The amplitude of the magnetic resonance signal of the intrapore liquid of landwaste is proportional to the volume of the liquid, therefore the volume of semaphore and hole
It is proportional, the volume in the corresponding hole of signal amplitude is determined by calibration；
3) porosity, is calculated：Porosity is calculated by following formula：
VPFor sample pore volume, VbPopulation of samples accumulates.
The method is applied to measure multiple clast samples in irregular shape, or for single sample in irregular shape
It measures；Or be repeated several times and measure, and the average value of porosity is obtained using average value.
A diameter of 3mm-5mm of the chip sample containing hole.
The bath foam is perfluocarbon solution.
The perfluocarbon solution is the mixture of perfluorinated trialkyl amine, density 1.85g/cm3。
Alternatively, the perfluocarbon solution is perfluoropolyether, density 1.892g/cm3。
As shown in Figure 1, the present invention provides a kind of landwaste porosity measuring device of site mud logging application, described device packet
Include the collection system for collecting landwaste and the volume detecting system for detecting volume, and the segregative line for being detached after detection
System, collection system includes slush pump 1, vibrating screen 2 and sample divider 3；Mud enters vibrating screen, vibrosieve by slush pump
From mud and landwaste, the landwaste that is detached enters collector from vibrating screen lower end and is collected；Vibrating screen is by a replaceable sieve
Net and a cleaning system select screen mesh size to detach mud and drilling cuttings, and screen mesh size determines the size of the landwaste of reservation；
Cleaning system fully brings bottoms up surface mud, is transported to collector by the accumulator tank landwaste of vibrating screen, collector includes
Two collection vessel 3-1 and 3-2, two are used alternatingly and achieve the purpose that uninterruptedly to sample；Ensure full of drilling fluid in collector
Liquid is not lost in landwaste hole；The landwaste being collected into is sent into the porosity that volume measuring system tests out landwaste；Lead to after measurement
It crosses precipitation vessel 4 and detaches landwaste, bath foam and drilling fluid, achieve the purpose that recycle bath foam.
As shown in Figure 2 and Figure 3, include volume detecting system for detecting volume, the volume detecting system includes measuring
Device 5 and NMR instrument 6, the measuring appliance are a tubular container with flat bottom edge, and measuring appliance activity is positioned in NMR instrument.
There are one liquid level charactron 7 with a scale, the bottom of liquid level charactron and the inside phases of measuring appliance for measuring appliance installation
Unicom forms a linker, and being marked on liquid level charactron has, and the scale shows the position of liquid level to determine volume；By
In liquid level charactron diameter very little, it can be used for clearly measuring micro volume variation and require.
Measuring appliance, it can be made with PEEK materials, high temperature high voltage resistant, be interfered without apparent nuclear magnetic signal.There are two portions for it
Point, first, having the tubular container of flat base, liquid level charactron with a scale is embedded inside it, and the two bottom unicom is suitable
In a linker.Due to liquid level charactron diameter very little, it can be used for clearly measuring micro volume variation and require.Label exists
Scale on liquid level charactron can observe the volume for reading measuring appliance by eyes, its design, which improves, passes through visual observation
The position of liquid level determines the accuracy of volume.
First enough perfluocarbon solution is first poured into measuring appliance reads liquid level as bath foam and by liquid level charactron
Corresponding volume.It is derived from the landwaste of collector, includes underground oil/water and drilling fluid in its hole, and have outside it
Some drilling fluids.First place them into the silk screen of no nuclear magnetic signal interference, then by rope by them from the upper end of measuring appliance
Opening is put into bottom suitable position.Drilling fluid and some floating materials outside landwaste are detached and are swum on liquid.
The corresponding volume in position at the interface between liquid and drilling fluid is read using scale.The volume for the landwaste being put into can be by two
The difference of secondary volume acquires.
Next, measuring appliance is placed in NMR instrument, size and the landwaste present position of the sample size of landwaste are selected, is made
It obtains landwaste and fully occupies effective range.It selects the amount of suitable bath foam to make it that can not only be totally submerged sample, also to make point
The drilling fluid come is separated out not in magnetic field range.It is measured by H NMR spectroscopy instrument1H NMR check the fluid in the hole of landwaste.From rock
The drilling fluid of bits surface separation floats on top and exceeds nuclear magnetic resonance apparatus detection range, measures1Total amplitude of H NMR signals
It is only from fluid in hole, the volume of 9 intrapore fluid of landwaste can be obtained by correction course, to obtain its pore-body
Product.The porosity of landwaste is calculated by formula (1).
In the water of unit volume the quantity of hydrogen atom in the oil of unit volume the quantity of hydrogen atom be slightly different.Cause
This, is when the hydrogen atom content of the fluid per unit volume in hole is differed with the aqueous salt for calibration, porosity
Determination may have a deviation.Correcting unit volume of oil can be distinguished by oil saturation, water hydrogen atom quantity accurately calculates hole
Volume and porosity.
Landwaste is collected, and the whole process of test is：Landwaste can be usually detached from drilling fluid in field of oil drilling.Landwaste
Collection system is made of three parts：Slush pump, vibrating screen and sample divider.Mud enters vibrating screen by slush pump, vibration
Sieve separation mud and landwaste, the landwaste detached enter collector from vibrating screen lower end and are collected.By slush pump can control into
Enter the mud amount of vibrating screen.Drilling mud filters out larger landwaste by centrifugal screen basket preliminary screening and leads to after Damintun rock
Cross pipeline injection vibrating screen.Vibrating screen is made of a replaceable sieve and a cleaning system.Screen mesh size is selected to divide
From mud and drilling cuttings, screen mesh size determines the size of the landwaste of reservation.Cleaning system fully brings bottoms up surface mud.Pass through
The accumulator tank landwaste of vibrating screen is transported to collector, and collector includes two collection vessels, between two are used alternatingly and reach not
The purpose of disconnected sampling.Ensure that liquid is not lost in landwaste hole full of drilling fluid in collector.The landwaste unicom being collected into measures
System testing goes out the porosity of landwaste.Landwaste, bath foam and drilling fluid are detached by precipitation vessel after measurement, reaches and recycles bath
The purpose of liquid.
Finally it should be noted that：Obviously, the above embodiment is merely an example for clearly illustrating the present invention, and simultaneously
The non-restriction to embodiment.For those of ordinary skill in the art, it can also do on the basis of the above description
Go out other various forms of variations or variation.There is no necessity and possibility to exhaust all the enbodiments.And thus drawn
The obvious changes or variations that Shen goes out are still in the protection scope of this invention.
Claims (11)
1. a kind of landwaste porosity measurement method of site mud logging application, which is characterized in that the method includes the following steps：
1) the chip sample total volume V containing hole that site mud logging obtains, is obtainedb；
2) the pore volume V for the chip sample containing hole that site mud logging obtains, is obtainedP：Contain hole by what site mud logging obtained
The chip sample of gap is immersed in bath foam, and the NMR signal of liquid in hole is measured with Nuclear Magnetic Resonance；The bath
The liquid in hole will not be made substituted for liquid and liquid be stained with from landwaste outside is unmixing and density is different；From landwaste hole
The amplitude of the magnetic resonance signal of liquid in gap is proportional to the volume of the liquid, thus the volume of semaphore and hole at than
Example determines the volume in the corresponding hole of signal amplitude by calibration；
3) porosity, is calculated：Porosity is calculated by following formula：
VPFor sample pore volume, VbPopulation of samples accumulates.
2. the landwaste porosity measurement method of site mud logging application as described in claim 1, which is characterized in that the method is answered
For measuring multiple clast samples in irregular shape, or the measurement for single sample in irregular shape；Or it is repeated several times
It measures, and obtains the average value of porosity using average value.
3. the landwaste porosity measurement method of site mud logging application as claimed in claim 1 or 2, which is characterized in that described to contain
There is a diameter of 3mm-5mm of the chip sample of hole.
4. the landwaste porosity measurement method of site mud logging as claimed in claim 3 application, which is characterized in that the bath foam is
Perfluocarbon solution.
5. the landwaste porosity measurement method of site mud logging application as claimed in claim 4, which is characterized in that described perfluorinated
Carbon solution is the mixture of perfluorinated trialkyl amine, density 1.85g/cm3。
6. the landwaste porosity measurement method of site mud logging application as claimed in claim 4, which is characterized in that described perfluorinated
Carbon solution is perfluoropolyether, density 1.892g/cm3。
7. a kind of landwaste porosity measuring device of site mud logging application, it is characterised in that：It include the volume for detecting volume
Detecting system, the volume detecting system include measuring appliance and NMR instrument, and the measuring appliance is a tubulose with flat bottom edge
Container, measuring appliance activity are positioned in NMR instrument.
8. a kind of landwaste porosity measuring device of site mud logging application as claimed in claim 7, it is characterised in that：Measuring appliance
There are one liquid level charactrons with a scale for installation, and the bottom of liquid level charactron is connected to form a connection with the inside of measuring appliance
Device, marking on liquid level charactron has, and the scale shows the position of liquid level to determine volume.
9. a kind of landwaste porosity measuring device of site mud logging application as claimed in claim 7 or 8, it is characterised in that：Packet
Include the collection system for collecting landwaste and the volume detecting system for detecting volume, and the segregative line for being detached after detection
System；Collection system includes slush pump, vibrating screen and sample divider；Mud enters vibrating screen by slush pump, vibrosieve from
Mud and landwaste, the landwaste detached enter collector from vibrating screen lower end and are collected；Vibrating screen is by a replaceable sieve
With a cleaning system, select screen mesh size to detach mud and drilling cuttings, screen mesh size determines the size of the landwaste of reservation；Clearly
It washes system fully to bring bottoms up surface mud, collector is transported to by the accumulator tank landwaste of vibrating screen, collector includes two
A collection vessel, two are used alternatingly and achieve the purpose that uninterruptedly to sample；Ensure in landwaste hole full of drilling fluid in collector
Liquid is not lost in；The landwaste being collected into is sent into the porosity that volume measuring system tests out landwaste；Pass through precipitation vessel after measurement
Landwaste, bath foam and drilling fluid are detached, achievees the purpose that recycle bath foam.
10. claim 7-9 it is any as described in site mud logging apply landwaste porosity measuring device application, feature
It is：
1) enough perfluocarbon solution, is first poured into measuring appliance as bath foam and liquid level is read by liquid level charactron corresponds to
Volume, be first time volume；
2), the chip sample containing hole that site mud logging obtains, comprising underground oil/water and drilling fluid in its hole, and
There are some drilling fluids outside it, the chip sample containing hole that site mud logging obtains is put into no nuclear magnetic signal interference
In silk screen, then they are put by bottom suitable position from the upper end opening of measuring appliance by rope；Brill outside landwaste
Well liquid and some floating materials are detached and are swum on fluorination liquid, and the interface between fluorination liquid and drilling fluid is read using scale
The corresponding volume in position is second of volume；The volume that the volume for the landwaste being put into passes through second of volume and first time volume
Difference acquires；
3), measuring appliance is placed in the measuring probe of NMR instrument, the sample of suitable landwaste is selected according to instrument effective range
The size of this amount simultaneously adjusts present position so that landwaste fully occupies the effective range of magnet measuring probe, and subtracts as possible
Small measurement error.It selects the amount of suitable bath foam to make it that can not only be totally submerged sample, also to make the drilling fluid separated not
In magnetic field range；It is measured by H NMR spectroscopy instrument1H NMR check the fluid in the hole of landwaste 9；Due to being detached from landwaste surface
Drilling fluid float on top and exceed nuclear magnetic resonance apparatus detection range, therefore measure1Total amplitude of H NMR signals is only from
Fluid in hole can obtain the volume of 9 intrapore fluid of landwaste by correction course, to obtain its pore volume；
4) porosity of landwaste, is calculated by formula (1).
11. application as claimed in claim 10, it is characterised in that：In the water of unit volume the quantity of hydrogen atom in unit bodies
The quantity of hydrogen atom is slightly different in long-pending oil, when the hydrogen atom content of the fluid per unit volume in hole and for calibration
When aqueous salt differs, the determination of porosity may have a deviation, distinguish correcting unit volume of oil, water by oil saturation
Hydrogen atom quantity accurately calculates pore volume and porosity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810198614.3A CN108442927B (en) | 2018-03-12 | 2018-03-12 | Rock debris porosity measuring method and device for field logging application and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810198614.3A CN108442927B (en) | 2018-03-12 | 2018-03-12 | Rock debris porosity measuring method and device for field logging application and application |
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| CN115542337A (en) * | 2022-11-28 | 2022-12-30 | 成都维泰油气能源技术有限公司 | Drilling return rock debris monitoring method and device and storage medium |
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