CN111220231B - Rock sample total volume measuring device and method - Google Patents
Rock sample total volume measuring device and method Download PDFInfo
- Publication number
- CN111220231B CN111220231B CN201811429018.8A CN201811429018A CN111220231B CN 111220231 B CN111220231 B CN 111220231B CN 201811429018 A CN201811429018 A CN 201811429018A CN 111220231 B CN111220231 B CN 111220231B
- Authority
- CN
- China
- Prior art keywords
- rock sample
- heavy liquid
- weight
- total volume
- heavy
- 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.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F17/00—Methods or apparatus for determining the capacity of containers or cavities, or the volume of solid bodies
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a rock sample total volume measuring device and a method, wherein the measuring device comprises: the tail end of the manipulator is used for hanging the rock sample and the reference object; the weighing unit is used for weighing the weights of the rock sample and the reference object respectively; the heavy liquid container comprises a first containing part and a second containing part which are isolated from each other, and the first containing part and the second containing part are respectively used for containing a first heavy liquid and a second heavy liquid which have the same components and different concentrations; and the processing unit is used for calculating the total volume of the rock sample. Hang the rock specimen through the manipulator and move with the reference thing, and then calculate the total volume of rock specimen, reduce the human factor influence of rock specimen total volume survey, have extensive suitability to plunger, cubic, graininess rock specimen.
Description
Technical Field
The invention belongs to the field of oil-gas geological exploration and development, and particularly relates to a device and a method for measuring the total volume of a rock sample.
Background
The determination of the total volume of the rock sample is an important link for determining the porosity of the rock sample. The existing method for measuring the total volume of the rock sample mainly comprises a measuring method, a buoyancy method, a test tube liquid level method and a gas method. In addition, methods such as a variable density buoyancy method and a three-dimensional laser scanning imaging method have attracted attention in the art. The buoyancy method is characterized in that on the basis of drying a rock sample, the rock sample to be tested is soaked in liquid, the weight of the rock sample in the liquid is weighed under the conditions of normal temperature and normal pressure when the liquid does not enter the rock sample, and the specific gravity of the liquid is measured. And taking the rock sample out of the liquid, wiping off the liquid on the surface of the rock sample, weighing the weight of the soaked rock sample in the air, and dividing the difference between the weight of the rock sample in the air and the weight of the rock sample in the liquid by the specific gravity of the liquid to obtain the total volume of the rock sample. The method has the link of manually erasing the liquid on the surface of the rock sample, the measurement result is greatly influenced by human factors, and the measurement of the total volume of the granular rock sample is difficult to realize.
Three-dimensional laser scanning imaging methods have attracted attention in recent years, and for example, "three-dimensional laser scanning and gas displacement combined determination of rock effective porosity (geological scientific information, 7 months 2015)", "influence of tight reservoir sample volume measurement on porosity error (petroleum experimental geology report)" discloses such methods. The method comprises a three-dimensional laser scanner and a corresponding software system, wherein a three-dimensional model of the rock sample is formed by three-dimensional scanning of the rock sample, a three-dimensional image of the rock sample is obtained by specific software, and then the total volume of the rock sample is calculated. Research shows that the test accuracy is improved along with the increase of the scanning resolution, and the test accuracy of different rock samples can be different by the same scanning resolution. In addition, from the principle point of view, the measurement of the total volume of the granular rock sample (rock debris) is difficult to realize.
The patent 'a rock sample total volume variable density survey device and method (CN 201310169226X)', provides a variable density buoyancy method, and its measuring medium selects magnetic fluid, places the rock sample in the magnetic fluid, adjusts the density of the magnetic fluid under the effect of electromagnetic field, and calls the weight of the rock sample in the magnetic fluid under the corresponding density, and further calculates the total volume of the rock sample by buoyancy formula. Preliminary practice proves that the variable density buoyancy method has the technical advantages of small influence of human factors, short measurement period, wide application range and the like. In the implementation process of the method, the total volume of the rock sample is determined and calculated according to the change of the weight of the rock sample in the magnetic fluid along with the density of the magnetic fluid, the weight of the rock sample in the magnetic fluid is an important parameter, and the determination accuracy directly influences the determination and calculation accuracy of the total volume of the rock sample.
The patent "a rock sample total volume variable density survey device and method (CN 201310169226X)" is developed based on the controllable characteristic of magnetofluid density high accuracy, the magnetofluid mainly comprises matrix, magnetic particle and surfactant, no matter any magnetofluid taking water, kerosene, ester etc. as matrix, more or less contains a certain amount of organic substance, place the rock sample in it, there is a certain degree of adhesion on the surface of the rock sample. In the practice of oil and gas exploration and development, researchers hope to obtain various information such as physical properties, geochemistry and the like through the same rock sample due to the requirement of research work, and even have the requirement of performing organic geochemistry test after the total volume of the rock sample is determined.
Therefore, a device and a method for testing the total volume of the rock sample, which are less affected by human factors and have no limit on the form of the rock sample, are needed to meet the requirements of subsequent tests.
Disclosure of Invention
In order to better meet the requirements of oil-gas geological research work, the device and the method for conveniently measuring the total volume of the rock are provided, the influence of human factors on the measurement of the total volume of the rock sample can be reduced, the operation is simple, convenient and quick, and the shape of the rock sample is not limited.
In order to achieve the above object, according to an aspect of the present invention, there is provided a rock sample total volume measuring apparatus, including:
the manipulator can move in the horizontal direction and the vertical direction, and the tail end of the manipulator is used for hanging the rock sample and the reference object;
the weighing unit is arranged at the end part of the manipulator and is used for weighing the weight of the rock sample and the weight of the reference object respectively;
the heavy liquid container is arranged below the manipulator and comprises a first containing part and a second containing part which are mutually isolated, and the first containing part and the second containing part are respectively used for containing a first heavy liquid and a second heavy liquid which have the same components and different concentrations;
a processing unit that calculates a total volume of the rock sample according to the following formula:
V＝(G0-G1)/(D2-D1)
wherein V represents the total volume of the rock sample, G0Representing the weight of the rock sample in a first heavy liquid, G1Representing the weight of the rock sample in a second heavy fluid, D1Denotes the density of the first heavy liquid, D2Indicating the density of the second heavy liquid.
Preferably, a sample frame is arranged at the end part of the manipulator, and the rock sample is fixed on the sample frame; the processing unit calculates the weight G of the rock sample in the first heavy liquid according to the following formula0And the weight G of the rock sample in the second heavy liquid1：
G0＝G0’-GK0
G1＝G1’-GK1
Wherein G is0' and G1' represents the weight of the sample frame containing the rock sample in the first heavy liquid and the second heavy liquid, respectively, GK0And GK1The weights of the sample frames of the unloaded rock sample in the first heavy liquid and the second heavy liquid are respectively shown.
Preferably, the processing unit calculates the density D of the first heavy liquid according to the following formula1And the density D of the second heavy liquid2：
D1＝(GC0-GC1)/VC
D2＝(GC0-GC2)/VC
Wherein G isC0Represents the weight of the reference object in air, VCDenotes the volume of the reference, GC1And GC2Respectively representing the weight of the reference object in the first heavy liquid and the second heavy liquid.
Preferably, the heavy liquid container is arranged in the constant temperature device.
Preferably, the manipulator support comprises a horizontally arranged cross beam and vertical beams arranged on two sides of the cross beam, and the manipulator is arranged on the cross beam and can horizontally move along the cross beam.
Preferably, the robot further comprises a control unit for controlling the horizontal movement and the vertical movement of the robot arm.
According to another aspect of the present invention, a method for determining the total volume of a rock sample is provided, the method comprising the steps of:
synchronously immersing the rock sample and the reference object in the first heavy liquid through a manipulator, and respectively determining the weight of the rock sample and the reference object in the first heavy liquid;
the mechanical arm is moved, the rock sample and the reference object are synchronously immersed in the second heavy liquid, and the weights of the rock sample and the reference object in the second heavy liquid are respectively determined;
calculating the total volume of the rock sample according to the following formula:
V＝(G0-G1)/(D2-D1)
wherein V represents the total volume of the rock sample, G0Representing the weight of the rock sample in a first heavy liquid, G1Representing the weight of the rock sample in a second heavy fluid, D1Denotes the density of the first heavy liquid, D2Indicating the density of the second heavy liquid.
Preferably, a sample frame is arranged at the end part of the manipulator, and the rock sample is fixed on the sample frame;
determining the weight G of the rock sample in a first heavy liquid by0：
Weighing G in a first heavy liquid of a sample frame of an unloaded rock sampleK0；
Weighing G in a first heavy liquid0’；
According to formula G0＝G0’-GK0Calculating the weight G of the rock sample in the first heavy liquid0；
Determining the weight of the rock sample in the second heavy fluid by:
weighing G in the second heavy liquidK1；
Weighing G in a second heavy liquid1’；
According to formula G0＝G0’-GK0Calculating the weight G of the rock sample in the second heavy liquid1。
Preferably, the method further comprises the following steps:
measuring the weight G of the reference object in the airC0；
Wherein the density D of the first heavy liquid is calculated according to the following formula1And the density D of the second heavy liquid2：
D1＝(GC0-GC1)/VC
D2＝(GC0-GC2)/VC
Wherein, VCDenotes the volume of the reference, GC1And GC2Respectively representing the weight of the reference object in the first heavy liquid and the second heavy liquid.
Preferably, the density of the first heavy liquid is less than the density of the second heavy liquid.
The invention has the following beneficial effects:
the rock sample and the reference object are hung through the manipulator, the weighing unit is used for weighing the weight of the reference object and the weight of the rock sample in heavy liquid with the same components and different concentrations, the calculating unit calculates the density of the heavy liquid with different concentrations when the rock sample is weighed, the total volume of the rock sample is further calculated, the influence of human factors on the measurement of the total volume of the rock sample is reduced, the operation is simple, convenient and quick, the method has no special requirements on the appearance of the volume of the rock sample, and the method has wide applicability to plungers, blocks and granular rock samples.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings. Wherein like reference numerals generally represent like parts throughout the exemplary embodiments.
Fig. 1 is a schematic structural diagram of a rock sample total volume measuring apparatus according to an embodiment of the present invention.
Fig. 2 shows a flow chart of a method for determining a total volume of a rock sample according to an embodiment of the invention.
Description of reference numerals:
1. a manipulator support; 2. a manipulator; 3. a weighing unit; 4. a sample frame; 5. sampling rock; 6. a reference object; 7. a heavy liquid container; 8. a first heavy liquid; 9. a second heavy liquid; 10. a thermostatic device; 11. a control unit.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The embodiment of the invention provides a rock sample total volume measuring device, which comprises:
the robot can move in the horizontal direction and the vertical direction, the tail end of the robot is used for hanging a rock sample and a reference object, the sample frame is used for containing the rock sample, and the reference object is made of a non-porous material with a regular geometric shape and is known in weight and volume; the weighing unit is arranged at the end part of the manipulator and is used for weighing the weight of the rock sample and the weight of the reference object respectively; the heavy liquid container is arranged below the manipulator and comprises a first containing part and a second containing part which are mutually isolated, and the first containing part and the second containing part are respectively used for containing a first heavy liquid and a second heavy liquid which have the same components and different concentrations; the processing unit is used for calculating the total volume of the rock sample according to the following formula:
V＝(G0-G1)/(D2-D1)
wherein V represents the total volume of the rock sample, G0Representing the weight of the rock sample in a first heavy liquid, G1Representing the weight of the rock sample in a second heavy fluid, D1Denotes the density of the first heavy liquid, D2Indicating the density of the second heavy liquid.
The method comprises the following steps that a rock sample and a reference object are hung through a manipulator to move horizontally and vertically, a heavy liquid container is used for containing heavy liquid, and the heavy liquid container comprises two containers with the same size and used for respectively containing heavy liquid with the same components and different densities; the weighing unit is used for weighing the weight of the heavy liquid with the same component and different concentration of the reference object and the rock sample, the processing unit calculates the density of the heavy liquid with different concentration when the rock sample is weighed according to the weight of the reference object in the heavy liquid with the same component and different concentration, and then calculates the total volume of the rock sample, so that the human factor influence of the total volume determination of the rock sample is reduced.
Specifically, the heavy liquid is an organic liquid with density higher than that of water or an aqueous solution of high-density salts, and comprises inorganic heavy liquid and organic heavy liquid, when the inorganic heavy liquid is adopted for measuring the total volume of the rock sample, the organic pollution of the rock sample can be avoided, and the subsequent organic geochemical analysis of the rock sample is not influenced; and according to the experimental requirements, the total volume of the rock sample is measured by adopting the organic heavy liquid.
As a preferred scheme, the end part of the manipulator is provided with a sample frame, and the rock sample is fixed on the sample frame; the processing unit calculates the weight G of the rock sample in the first heavy liquid according to the following formula0And the weight G of the rock sample in the second heavy liquid1：
G0＝G0’-GK0
G1＝G1’-GK1
Wherein G is0' and G1' represents the weight of the sample frame containing the rock sample in the first heavy liquid and the second heavy liquid, respectively, GK0And GK1The weights of the sample frames of the unloaded rock sample in the first heavy liquid and the second heavy liquid are respectively shown.
In particular, according to the weight G of the sample frame carrying the rock sample in the first heavy liquid0' and the weight G of the sample frame carrying the rock sample in a second heavy liquid1' removing the gravity of the sample frame to obtain the weight G of the rock sample in the first heavy liquid0And the weight G of the rock sample in the second heavy liquid1。
Preferably, the processing unit calculates the first value according to the following formulaDensity D of heavy liquid1And the density D of the second heavy liquid2：
D1＝(GC0-GC1)/VC
D2＝(GC0-GC2)/VC
Wherein G isC0Represents the weight of the reference object in air, VCDenotes the volume of the reference, GC1And GC2Respectively representing the weight of the reference object in the first heavy liquid and the second heavy liquid.
Specifically, the volume of the reference object and the gravity of the reference object in the air are both known, and G is the weight of the reference object in the first heavy liquid and the second heavy liquid respectivelyC1And GC2Calculating the density D of the first heavy liquid1And the density D of the second heavy liquid2。
Preferably, the device further comprises a constant temperature device, and the heavy liquid container is arranged in the constant temperature device.
In particular, the heavy liquid container is placed in a thermostat which ensures that the density of the heavy liquid is not affected by temperature variations during the measurement.
As the preferred scheme, still include the manipulator support, the manipulator support includes the crossbeam of level setting and sets up in the perpendicular roof beam of crossbeam both sides, and the manipulator sets up on the crossbeam to can follow crossbeam horizontal migration.
Preferably, the robot further comprises a control unit for controlling the horizontal movement and the vertical movement of the robot arm.
Specifically, the manipulator can move horizontally along a cross beam of the manipulator support, the end part of the manipulator can move in the vertical direction, and the manipulator is controlled by the control unit to drive the sample frame and the reference object to move synchronously.
Particularly, the control of the movement of the manipulator, data processing and the calculation, display and storage functions of the total volume of the rock sample are realized through the control unit and the processing unit.
According to another aspect of the present invention, a method for determining the total volume of a rock sample is provided, the method comprising the following steps:
synchronously immersing the rock sample and the reference object in the first heavy liquid through a manipulator, and respectively determining the weight of the rock sample and the reference object in the first heavy liquid;
the mechanical arm is moved, the rock sample and the reference object are synchronously immersed in the second heavy liquid, and the weights of the rock sample and the reference object in the second heavy liquid are respectively determined;
the total volume of the rock sample is calculated according to the following formula:
V＝(G0-G1)/(D2-D1)
wherein V represents the total volume of the rock sample, G0Representing the weight of the rock sample in a first heavy liquid, G1Representing the weight of the rock sample in a second heavy fluid, D1Denotes the density of the first heavy liquid, D2Indicating the density of the second heavy liquid.
The method has the advantages that the density of the heavy liquid with different concentrations is calculated when the rock sample is weighed according to the weight of the reference object in the heavy liquid with the same components and different concentrations, the total volume of the rock sample is further calculated, the influence of human factors on the determination of the total volume of the rock sample is reduced, the operation is simple, convenient and quick, the method has no special requirements on the appearance of the volume of the rock sample, and the method has wide applicability to plungers, blocks and granular rock samples.
As a preferred scheme, the end part of the manipulator is provided with a sample frame, and the rock sample is fixed on the sample frame;
determining the weight G of the rock sample in a first heavy liquid by0：
Weighing G in a first heavy liquid of a sample frame of an unloaded rock sampleK0；
Weighing G in a first heavy liquid0’；
According to formula G0＝G0’-GK0Calculating the weight G of the rock sample in the first heavy liquid0；
Determining the weight of the rock sample in the second heavy fluid by:
weighing G in the second heavy liquidK1；
Weighing G in a second heavy liquid1’；
According to formula G0＝G0’-GK0Calculating the weight G of the rock sample in the second heavy liquid1。
Specifically, the weight of the test sample box in the heavy liquid with different concentrations under no-load condition is measured and recorded for later use.
Placing the rock sample in a sample frame, synchronously immersing the sample frame and a reference object in a first heavy liquid, weighing, and deducting the weight of the sample frame under the no-load condition to obtain the weight G of the rock sample0。
Controlling the movement of the manipulator by using a control unit, synchronously immersing the sample frame and the reference object in a second heavy liquid by lifting, moving and descending, wherein the immersion depth of the sample frame and the reference object is the same as that of the first heavy liquid, repeatedly rising and descending for a plurality of times, uniformly mixing the first heavy liquid of the container adhered to the surfaces of the sample frame, the rock sample and the reference object into the second heavy liquid, synchronously immersing the sample frame and the reference object in the first heavy liquid and weighing, deducting the weight of the sample frame under the no-load condition, and obtaining the weight G of the rock sample1。
Preferably, the method further comprises the following steps:
measuring the weight G of a reference in airC0；
Wherein the density D of the first heavy liquid is calculated according to the following formula1And the density D of the second heavy liquid2：
D1＝(GC0-GC1)/VC
D2＝(GC0-GC2)/VC
Wherein, VCDenotes the volume of the reference, GC1And GC2Respectively representing the weight of the reference object in the first heavy liquid and the second heavy liquid.
Specifically, considering that when the sample frame and the rock sample move from the first heavy liquid to the second heavy liquid, the density of the second heavy liquid can be changed by the heavy liquid adhered to the surface of the sample frame and the rock sample, and the change of the density has a direct influence on the calculation of the total volume of the rock sample, in order to obtain accurate density information of the heavy liquid, the volume of the reference object and the weight of the reference object in the air are known, after the weights of the reference object in the first heavy liquid and the second heavy liquid are weighed, the densities of the first heavy liquid and the second heavy liquid can be respectively calculated, the densities of the first heavy liquid and the second heavy liquid are the densities of the first heavy liquid and the second heavy liquid when the rock sample and the sample frame are weighed in the first heavy liquid and the second heavy liquid, and accurate parameters are provided for the calculation of the total volume of the rock sample.
Preferably, the density of the first heavy liquid is less than the density of the second heavy liquid.
Specifically, heavy liquids with the same components and different concentrations are prepared, the density of the first heavy liquid is greater than that of the second heavy liquid, the first heavy liquid is placed in the first containing portion, and the second heavy liquid is placed in the second containing portion.
Example 1
Fig. 1 is a schematic structural diagram of a rock sample total volume measuring apparatus according to an embodiment of the present invention.
As shown in fig. 1, an embodiment provides a rock sample total volume measuring apparatus, including:
a manipulator 2, the manipulator 2 can move along the horizontal direction and the vertical direction, the tail end of the manipulator 2 is used for hanging a rock sample 4 and a reference object 6, the sample frame 4 is used for containing the rock sample, and the reference object 6 is made of a non-porous material with a regular geometric shape and is known in weight and volume; the weighing unit 3 is arranged at the end part of the manipulator 2 and used for weighing the weight of the rock sample 5 and the weight of the reference object 6 respectively; the heavy liquid container 7 is arranged below the manipulator 2, and the heavy liquid container 10 comprises a first containing part and a second containing part which are mutually isolated, wherein the first containing part and the second containing part are respectively used for containing a first heavy liquid 8 and a second heavy liquid 9 which have the same components and different concentrations; still include constant temperature equipment 10, heavy liquid container 7 sets up in constant temperature equipment 10, still includes manipulator support 1, and manipulator support 1 includes the crossbeam that the level set up and sets up in the perpendicular roof beam of crossbeam both sides, and manipulator 2 sets up on the crossbeam to can follow crossbeam horizontal migration, still include the control unit 11, the horizontal migration and the vertical migration of control manipulator 2 are used for controlling to control unit 11.
A processing unit (not shown) that calculates the total volume of the rock sample according to the following formula:
V＝(G0-G1)/(D2-D1)
wherein V represents the total volume of the rock sample, G0Representing the weight of the rock sample in a first heavy liquid, G1Representing the weight of the rock sample in a second heavy fluid, D1Denotes the density of the first heavy liquid, D2Indicating the density of the second heavy liquid.
The end part of the manipulator 2 is provided with a sample frame 4, and a rock sample 5 is fixed on the sample frame 4; the processing unit calculates the weight G of the rock sample 4 in the first heavy liquid 8 according to the following formula0And the weight G of the rock sample in the second heavy liquid 91：
G0＝G0’-GK0
G1＝G1’-GK1
Wherein G is0' and G1' represents the weight of the sample frame containing the rock sample in the first heavy liquid and the second heavy liquid, respectively, GK0And GK1The weights of the sample frames of the unloaded rock sample in the first heavy liquid and the second heavy liquid are respectively shown.
The processing unit calculates the density D of the first heavy liquid according to the following formula1And the density D of the second heavy liquid2：
D1＝(GC0-GC1)/VC
D2＝(GC0-GC2)/VC
Wherein G isC0Represents the weight of the reference object in air, VCDenotes the volume of the reference, GC1And GC2Respectively representing the weight of the reference object in the first heavy liquid and the second heavy liquid.
Example 2
Fig. 2 shows a flow chart of a method for determining a total volume of a rock sample according to an embodiment of the invention.
As shown in fig. 2, the embodiment provides a method for determining the total volume of a rock sample, which comprises the following steps:
the method comprises the following steps: a first heavy liquid 8 and a second heavy liquid 9 which have the same components and different concentrations are prepared, wherein the density of the first heavy liquid 8 is less than that of the second heavy liquid 9.
Step two: the end part of the manipulator 2 is provided with a sample frame 4, and a rock sample 5 is fixed on the sample frame 4; the weight of the sample frame 4 in the first heavy liquid 8 and the second heavy liquid 9 is measured and recorded under no-load conditions for the sample frame without the rock sample.
Weighing G in a first heavy liquid of a sample frame of an unloaded rock sampleK0Weighing the sample frame of the rock sample in the second heavy liquidK1；
Step three: measuring the weight G of a reference object 6 in airC0；
Wherein the density D of the first heavy liquid is calculated according to the following formula1And the density D of the second heavy liquid2：
D1＝(GC0-GC1)/VC
D2＝(GC0-GC2)/VC
Wherein, VCDenotes the volume of the reference, GC1And GC2Respectively representing the weight of the reference object in the first heavy liquid and the second heavy liquid.
Step four: synchronously immersing the rock sample 5 and the reference object 6 in the first heavy liquid 8 through the manipulator 2, and respectively determining the weight of the rock sample 5 and the reference object 6 in the first heavy liquid 8;
moving the manipulator 2, synchronously immersing the rock sample 5 and the reference object 6 in the second heavy liquid 9, and respectively determining the weight of the rock sample 5 and the reference object 6 in the second heavy liquid 9;
determining the weight G of the rock sample 5 in the first heavy liquid 8 by0：
Weighing G the sample frame 4 containing the rock sample 5 in a first heavy liquid 80'; according to formula G0＝G0’-GK0Calculating the weight G of the rock sample 5 in the first heavy liquid 80；
Determining the weight of the rock sample in the second heavy fluid by:
weighing G the sample frame 4 containing the rock sample 5 in a second heavy liquid1'; according to the formulaG0＝G0’-GK0Calculating the weight G of the rock sample 5 in the second heavy liquid 91。
Step five: the total volume of the rock sample is calculated according to the following formula:
V＝(G0-G1)/(D2-D1)
wherein V represents the total volume of the rock sample, G0Representing the weight of the rock sample in a first heavy liquid, G1Representing the weight of the rock sample in a second heavy fluid, D1Denotes the density of the first heavy liquid, D2Indicating the density of the second heavy liquid.
The rock sample 5 and the reference object 6 are hung by the manipulator 2 to move, the weight of the reference object 6 and the weight of the rock sample 5 in heavy liquid with the same components and different concentrations are weighed by the weighing unit 3, the density of the heavy liquid with different concentrations is calculated by the calculating unit when the rock sample 5 is weighed according to the weight of the reference object 6 in the heavy liquid with the same components and different concentrations, the total volume of the rock sample 5 is further calculated, the influence of human factors on the measurement of the total volume of the rock sample is reduced, the operation is simple, convenient and quick, the method has no special requirement on the appearance of the volume of the rock sample, and the method has wide applicability to plungers, blocks and granular rock samples.
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (7)
1. A rock sample total volume measuring method is characterized in that a rock sample total volume measuring device is utilized;
the assay device comprises: the manipulator can move in the horizontal direction and the vertical direction, and the tail end of the manipulator is used for hanging the rock sample and the reference object;
the weighing unit is arranged at the end part of the manipulator and is used for weighing the weight of the rock sample and the weight of the reference object respectively;
the heavy liquid container is arranged below the manipulator and comprises a first containing part and a second containing part which are mutually isolated, and the first containing part and the second containing part are respectively used for containing a first heavy liquid and a second heavy liquid which have the same components and different concentrations;
a processing unit that calculates a total volume of the rock sample according to the following formula:
V＝(G0-G1)/(D2-D1)
wherein V represents the total volume of the rock sample, G0Representing the weight of the rock sample in a first heavy liquid, G1Representing the weight of the rock sample in a second heavy fluid, D1Denotes the density of the first heavy liquid, D2Representing the density of the second heavy liquid;
the determination method comprises the following steps:
synchronously immersing the rock sample and the reference object in the first heavy liquid through a manipulator, and respectively determining the weight of the rock sample and the reference object in the first heavy liquid;
the mechanical arm is moved, the rock sample and the reference object are synchronously immersed in the second heavy liquid, and the weights of the rock sample and the reference object in the second heavy liquid are respectively determined;
calculating the total volume of the rock sample according to the following formula:
V＝(G0-G1)/(D2-D1)
wherein V represents the total volume of the rock sample, G0Representing the weight of the rock sample in a first heavy liquid, G1Representing the weight of the rock sample in a second heavy fluid, D1Denotes the density of the first heavy liquid, D2Indicating the density of the second heavy liquid.
2. The method of claim 1, wherein the apparatus further comprises a thermostat, and the heavy liquid container is disposed in the thermostat.
3. The method for measuring the total volume of a rock sample according to claim 1, wherein the measuring apparatus further comprises a manipulator support, the manipulator support comprises a horizontally disposed cross beam and vertical beams disposed on both sides of the cross beam, and the manipulator is disposed on the cross beam and can move horizontally along the cross beam.
4. The method of claim 1, wherein the apparatus further comprises a control unit for controlling the horizontal movement and the vertical movement of the manipulator.
5. The method for measuring the total volume of a rock sample according to claim 1, wherein a sample frame is provided at an end of the manipulator, and the rock sample is fixed to the sample frame;
determining the weight G of the rock sample in a first heavy liquid by0：
Weighing G in a first heavy liquid of a sample frame of an unloaded rock sampleK0；
Weighing G in a first heavy liquid0’；
According to formula G0＝G0’-GK0Calculating the weight G of the rock sample in the first heavy liquid0；
Determining the weight of the rock sample in the second heavy fluid by:
weighing G in the second heavy liquidK1；
Weighing G in a second heavy liquid1’；
According to formula G0＝G0’-GK0Calculating the weight G of the rock sample in the second heavy liquid1。
6. The method for determining the total volume of a rock sample according to claim 1, further comprising:
measuring the weight G of the reference object in the airC0；
Wherein the density D of the first heavy liquid is calculated according to the following formula1And the second heavy liquidDensity D of2：
D1＝(GC0-GC1)/VC
D2＝(GC0-GC2)/VC
Wherein, VCDenotes the volume of the reference, GC1And GC2Respectively representing the weight of the reference object in the first heavy liquid and the second heavy liquid.
7. The method of claim 1, wherein the first heavy fluid has a density less than a density of the second heavy fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811429018.8A CN111220231B (en) | 2018-11-27 | 2018-11-27 | Rock sample total volume measuring device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811429018.8A CN111220231B (en) | 2018-11-27 | 2018-11-27 | Rock sample total volume measuring device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111220231A CN111220231A (en) | 2020-06-02 |
| CN111220231B true CN111220231B (en) | 2021-07-20 |
Family
ID=70827443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811429018.8A Active CN111220231B (en) | 2018-11-27 | 2018-11-27 | Rock sample total volume measuring device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111220231B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09178640A (en) * | 1995-12-22 | 1997-07-11 | Shimadzu Corp | Specific gravity measuring device |
| JPH10318899A (en) * | 1997-05-21 | 1998-12-04 | Kett Electric Lab | Apparatus for measuring volume weight of sample such as grain, etc. |
| KR20110045401A (en) * | 2009-10-26 | 2011-05-04 | 한국지질자원연구원 | Drying Device Capable of Measuring Weight of Specimen and Measuring Method of Porosity using thereof |
| CN104142290A (en) * | 2013-05-09 | 2014-11-12 | 中国石油化工股份有限公司 | Rock sample bulk volume and variable density determination apparatus and method thereof |
| CN206479226U (en) * | 2017-02-09 | 2017-09-08 | 中国石油化工股份有限公司 | A kind of rock sample volume analyzer |
-
2018
- 2018-11-27 CN CN201811429018.8A patent/CN111220231B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09178640A (en) * | 1995-12-22 | 1997-07-11 | Shimadzu Corp | Specific gravity measuring device |
| JPH10318899A (en) * | 1997-05-21 | 1998-12-04 | Kett Electric Lab | Apparatus for measuring volume weight of sample such as grain, etc. |
| KR20110045401A (en) * | 2009-10-26 | 2011-05-04 | 한국지질자원연구원 | Drying Device Capable of Measuring Weight of Specimen and Measuring Method of Porosity using thereof |
| CN104142290A (en) * | 2013-05-09 | 2014-11-12 | 中国石油化工股份有限公司 | Rock sample bulk volume and variable density determination apparatus and method thereof |
| CN206479226U (en) * | 2017-02-09 | 2017-09-08 | 中国石油化工股份有限公司 | A kind of rock sample volume analyzer |
Non-Patent Citations (1)
| Title |
|---|
| 基于磁性液体的岩样总体积测试方法;鲍云杰 等;《计量、测试与校准》;20141231;第39-41页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111220231A (en) | 2020-06-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Atapattu et al. | Creeping sphere motion in Herschel-Bulkley fluids: flow field and drag | |
| Tsai et al. | A portable device for measuring sediment resuspension | |
| RU2331057C2 (en) | Method and device for evaluation of physical parametres of undeground deposit of mineral wealth on base of study of rock fragments selected from this deposit | |
| CN104142290B (en) | A kind of rock sample cumulative volume variable density determinator and method | |
| CN103415763B (en) | For the method determining suspended substance in liquid load concentration | |
| CN101539502A (en) | Method for measuring liquid-drop contact angle on solid surface and device thereof | |
| CN111337408A (en) | Method for testing rock crack porosity by using low-field nuclear magnetic resonance equipment | |
| CN108332901B (en) | Simulation method for pore pressure response of sediment under wave action | |
| CN111220231B (en) | Rock sample total volume measuring device and method | |
| Güss | Oxygen uptake at the sediment–water interface simultaneously measured using a flux chamber method and microelectrodes: must a diffusive boundary layer exist? | |
| CN109374080B (en) | Magnetic suspension-based rubber volume change measurement device and method | |
| CN106872335A (en) | Porous material wetting property measurement apparatus and method based on infrared image processing | |
| CN201348502Y (en) | Three-dimensional homogeneous entity digitalization measuring apparatus | |
| Gratiot et al. | On the determination of the settling flux of cohesive sediments in a turbulent fluid | |
| Rezzoug et al. | Scaling laws for centrifuge modeling of capillary rise in sandy soils | |
| CN111275678B (en) | System and method for measuring displacement of slender structure under action of internal wave | |
| US2845793A (en) | Apparatus for determining the rate of settling of suspensions | |
| Kaszubkiewicz et al. | Determination of soil grain size composition by measuring apparent weight of float submerged in suspension | |
| O'Brien et al. | Particle tracking in a salinity gradient: a method for measuring sinking rate of individual phytoplankton in the laboratory | |
| CN111721661A (en) | Rock sample total volume measuring device and method | |
| Bardet et al. | Grain-size analysis by buoyancy method | |
| JP2022552565A (en) | Automatic measuring instruments, manufacturing equipment and methods | |
| CN112710588A (en) | Method and system for calculating and testing static contact angle of inner surface of capillary tube | |
| CN212180528U (en) | Intelligent testing system for rock water-based effect | |
| CN111323329B (en) | Intelligent testing system for water-treatment effect of rock |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |