CN103674739A - Mud shale brittle nature experimental device and experimental analysis method thereof - Google Patents
Mud shale brittle nature experimental device and experimental analysis method thereof Download PDFInfo
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- CN103674739A CN103674739A CN201210359391.7A CN201210359391A CN103674739A CN 103674739 A CN103674739 A CN 103674739A CN 201210359391 A CN201210359391 A CN 201210359391A CN 103674739 A CN103674739 A CN 103674739A
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Abstract
The invention relates to a mud shale brittle nature experimental device and an experimental analysis method of the mud shale brittle nature experimental device. The device comprises a pair of guide upright posts, a transverse guide post, a longitudinal guide post and a drop hammer, wherein sliding slots are respectively formed on the side walls of the pair of the guide upright posts along the vertical direction, the two ends of the longitudinal guide post are respectively connected with a driving module and the drop hammer, the transverse guide post and the longitudinal guide post are connected into a whole, and the two ends of the transverse guide post are movably arranged in the sliding slots. The experimental method comprises the following steps: enabling the drop hammer to drop to smash a rock sample to be tested, sequentially screening scrap into a plurality of groups by using different specifications of screens, figuring out the weight percentage of the group with the smallest specification by a weight method, figuring out the total newly increased surface area of the sample after smashing by using a surface area method and further analyzing the brittle nature of the rock sample to be tested; and compared with the prior art, the device provided by the invention has the advantages of loose requirements on appearance of the rock sample to be tested, simplicity and convenience in operation, high precision and small influence caused by human factors, and a new concept is provided for evaluation and research of mud shale.
Description
Technical field
The present invention relates to the fields of measurement of rock mechanics parameters, relate in particular to a kind of mud shale embrittlement property experiment device and experimental technique thereof.
Background technology
The embrittlement of mud shale is the common phenomenon in drilling well and laboratory test job, and embrittlement character refers to material under external force, and as stretching, impact etc., only producing very little distortion is the character of rupture failure.
In drilling and coring delivery process, when going out tin, mud shale rock core often breaks, while drilling through test with rock core post in laboratory, often there is cracking phenomena, these are all the concrete manifestations of mud shale embrittlement character.
In recent years, oil-gas geology field is more and more paid attention to the embrittlement character of mud shale, the achievement in research obtaining is also more and more, carries out single shaft, three axles on the one hand so that the single shaft under confined pressure condition, the mechanical property of three axle experimental study rocks by bulk samples such as rock cores; On the other hand, by landwaste, carry out the Experiment Parameters such as Poisson ratio, hardness and test, mechanical properties of rock analysis and evaluation are carried out in stratum.Apply these ROCK MECHANICS RESEARCH achievements, for drilling well, pressure break and Cap Assessment provide foundation.
Existing ROCK MECHANICS RESEARCH achievement is as follows:
1, utilize rock core to obtain mechanics parameter
Generally, when the parametric measurements such as Poisson ratio, elastic modulus, need to obtain the columned sample of profile rule, still needing of having will be carried out to sample the pre-service such as saturated brine; Because mud stone, shale and mud shale are subject to the impact of composition, structure, in carrying out sharp processing process, be very easy to break, to having relatively high expectations of sample, therefore cause a lot of mud shale samples can not do Poisson ratio and elastic modulus test because obtaining rock core post, can not meet the needs of research work; And rock sample is carried out to saturated brine etc. while in earlier stage processing, and spended time is more, and work efficiency is lower.
2, utilize cuttings analysis test to obtain rock mechanics parameters
1) landwaste sonic method
Acoustic wave character by landwaste is measured, and sets up the relational expression of rock mechanics parameters and acoustic wave character, calculates the mechanics parameter of landwaste.
The method must be selected 3～5 representational landwaste, grinds two parallel end faces, and will guarantee the depth of parallelism and the flatness of two end faces, and operation easier is larger.Meanwhile, landwaste sonic method, due to anisotropy and the uneven opposite sex of rock, is difficult to set up reliable relational expression, and the relational expression error of often setting up is very large.
2) stratum Poisson ratio method is measured in landwaste compacting
The method must be carried out compacting and return under formation condition landwaste, and complicated operation can only be for determining the Poisson ratio on stratum, and can not be for describing fast the embrittlement character of rock sample to be measured.
3) landwaste plunging obtains rock mechanics parameters
By landwaste penetration hardness, test, obtain the hardness and ductility parameter of landwaste.
Its way is: select suitable landwaste surface, under a permanent load effect, with the flat right cylinder pressure head of certain diameter, be pressed into landwaste surface, and be issued to determined maximum load and compression distance in the load of constant increase, with data acquisition and processing (DAP) device, obtain loading-displacement curve simultaneously, finally obtain the hardness and ductility coefficient of landwaste.
This method finally obtains the hardness and ductility coefficient of landwaste, and due to hardness and ductility coefficient and embrittlement character relation complexity, so the method can not be for describing the embrittlement character of mud shale.
3, with weighted-drop, measure solid coefficient
Solid coefficient is for the soundness index of the expression sample opposing external force ability of coal sample, also claims Pu Shi solid coefficient or Protodyakonov coeffic, be an important parameter, and have bioassay standard.
The experimental provision of weighted-drop mainly comprises that smashing cylinder, metering cylinder etc. to pieces partly forms.Wherein, smashing cylinder to pieces is comprised of weight, cylindrical shell, the cylinder ends three part; Metering cylinder is comprised of piston chi and graduated cylinder; The defect that adopts weighted-drop to bring is:
1) weight, by rope by manual control, because manipulator's operating habit is different with mode, may bring certain impact to sample fragmentation, further affects the accuracy of data;
2) in weight drop process, may produce friction with cylinder inboard wall, thereby make weight be non-freely falling body shape, fall, cause the data that obtain to occur deviation;
3) after sample fragmentation, be in the bottom of cylindrical shell, need to pour the sample after fragmentation into special sample collection by manually having removed cylindrical shell, and the long nearly 70cm of cylindrical shell, the sample that slightly careless manipulation will cause part to be broken powder remains in cylindrical shell, and affects the accuracy of data;
4) particle diameter of collecting is less than to sample compacting the metering height in graduated cylinder of 0.5mm, because metering is completed by manual operation, may there is personal error in the data that different operating person obtains, the accuracy of final impact analysis.
For the embrittlement character of describing mud shale, there is following problem in weighted-drop:
1) weighted-drop is the experimental technique being applied in the detection of coal sample physical property, not yet has researchist to apply it in the middle of the test experience of mud shale embrittlement character;
2) adopt after the broken sample of weighted-drop, only collect that diameter is less than the sample of 0.5mm and with sample the height in metering cylinder analyze, certainly will cause sample burst property information loss, imperfect.
Above-mentioned various experiment research and achievement can reflect the embrittlement character of rock to a certain extent, but because these methods differ greatly at aspects such as sample requirement, operating conditions, application purpose and the scope of applications thereof, the embrittlement property definition of rock and tolerance also do not have unified saying in addition.So, by different experimental provisions and method, obtain the parameter that reflects rock embrittlement character, there is theory and practice meaning.
Summary of the invention
The present invention is directed to the embrittlement characteristic of mud shale, a kind of experimental provision of mud shale embrittlement character is provided, and has set up experimental technique, for inquiring into the embrittlement character of mud shale and providing a kind of new tool and new method with the relation of other physical property.
The experimental provision of a kind of mud shale embrittlement character provided by the invention is as follows:
An experimental provision for mud shale embrittlement character, described device comprises and drops hammer 8, driver module, locating module and collection of rock sample module; Described rock sample to be measured is arranged in described collection of rock sample module, described in drop hammer and 8 be arranged on directly over described collection of rock sample module;
Described locating module with described in drop hammer and 8 be fixedly connected with, for dropping hammer 8 direction of motion described in controlling; Described locating module comprises guidepost or guide line, described guidepost or guide line with described in drop hammer and 8 be connected;
Described driver module is connected with described locating module, for quantitatively applying described 8 the acting force of dropping hammer; Described driver module comprises drive motor.
Described locating module comprises a pair of guide upright post 2,3, horizontal guide rod 9 and Der Laengslenker 10; Described a pair of guide upright post 2,3 is vertically set on outside described collection of rock sample module;
On the body of rod sidewall of described a pair of guide upright post 2,3, correspondence offers chute respectively, and the altitude range of described chute is 50～80cm.Described horizontal guide rod 9 is slidably arranged in described chute; Described Der Laengslenker 10 one end with described in drop hammer 8 fixingly, the other end is connected with described driver element, and described Der Laengslenker 10 shafts and described horizontal guide rod 9 are fixed;
Described locating module 8 whereabouts of dropping hammer described in controlling, impact described rock sample to be measured, and described driver module drops hammer described in controlling and 8 vertically rises.
Described collection of rock sample module comprises base 1 and sample disc 11; A pair of guide upright post 2,3 is fixed on described base 1; Described base 1 upper surface is provided with groove, and the external diameter of described groove and described sample disc 11 matches, and described sample disc 11 embeds and is arranged in described groove, and described rock sample to be measured is arranged in described sample disc 11.The thickness of described base 1 is 1～3cm, and the degree of depth of described groove is 2～4mm; The material of described sample disc 11 is steel or iron
Described driver module comprises drive motor 5, pulley 6 and traction rope 7; The transmission shaft of described drive motor 5 is connected with described pulley 6, and described traction rope 7 one end are connected with pulley 6, and the other end is connected with the Der Laengslenker 10 of locating module.
Described device also comprises top board 4, and the opening diameter at described top board 4 centers is 4～6cm.
Described top board 4 glands are on described a pair of guide upright post 2,3, and described top board 4 centers are provided with perforate; Drive motor 5, pulley 6 are arranged on described top board 4.
Described drop hammer 8 be shaped as cylindrical, and described in drop hammer 8 lower surface be plane; Described 8 the quality of dropping hammer is 2～5Kg, and its material is steel or iron.
Second inventive point of the present invention is to adopt gravimetric method to analyze the method for mud shale embrittlement character,
Described analytical approach step is,
Rock sample chip to be measured in described sample disc 11 is screened, filter out five groups described in rock sample chip to be measured; The diameter range of the diameter≤0.45mm of first group of chip, second group of chip is that the diameter range of 0.45～1mm, the 3rd group of chip is that the diameter range of 1～2mm, the 4th group of chip is the diameter >=3mm of 2～3mm, the 5th group of chip;
C=G
1/G； （1）
Wherein, G
1be the weight of first group of chip, G is the general assembly (TW) of the described rock sample to be measured that measures in step 1;
In described step 3, multiplicity is 3 times; In the grouping step of described step 4, utilize successively aperture rock sample to be measured to be divided into groups for 0.45mm, 1mm, 2mm, tetra-kinds of sieves of 3mm.
The 3rd inventive point of the present invention is the method for employing surface area method analysis mud shale embrittlement character,
Described analytical approach step is,
Utilize successively aperture for 0.45mm, 1mm, 2mm, tetra-kinds of sieves of 3mm divide into groups the rock sample chip to be measured in described sample disc 11 to screen to rock sample to be measured, filter out five groups described in rock sample chip to be measured; The diameter range of the diameter≤0.45mm of first group of chip, second group of chip is that the diameter range of 0.45～1mm, the 3rd group of chip is that the diameter range of 1～2mm, the 4th group of chip is the diameter >=3mm of 2～3mm, the 5th group of chip;
The mean diameter that the described rock sample chip to be measured of each group is measured to every group of rock sample chip, is designated as R1, R2, R3, R4, R5 successively;
Utilize formula (2) to calculate respectively to organize the conversion diameter R ' of chip
i;
R’
i=G/（G
i/R
i）； （2）
Wherein, G is the general assembly (TW) of the described rock sample to be measured that measures in step 1, G
ifor the weight of the i group chip that measures in step 5, the value of i is 1,2,3,4,5; R
imean diameter for the i group chip in step 6;
Utilize formula (3) to obtain respectively to organize the newly-increased surface area S of chip
i;
S
i=60×G
i/（D×R’
i）； （3）
Wherein, G
ifor the weight of the i group chip that measures in step 4, R '
ibe the conversion diameter of the i group chip that calculated by formula (2), the value of i is 1,2,3,4,5; D is the density of described rock sample to be measured;
Utilize formula (4) to calculate total newly-increased surface area S;
S=∑S
i； （4）
Wherein, S
ibe the newly-increased surface area of the i group chip that calculated by formula (3), the value of i is 1,2,3,4,5;
Based on parameter acquiring process main manifestations, be that sample is cracked, thus no matter be the C value of gravimetric method, or the total newly-increased surface area S value of surface area method, be all to have reflected the degree of crushing of sample under certain effect power from a side.C value and S value are larger, represent that mud shale rock sample is easier to be broken, and embrittlement character is stronger; C value and S value are less, represent that mud shale rock sample is more difficult cracked, and embrittlement character is more weak, thereby provide new argument, new method for mud shale embrittlement property description.
The size of C and S value is mainly subject to the impact of two aspect factors,
Be condition of work on the one hand, comprise the material of the quality of dropping hammer, the stroke dropping hammer, number of shocks, sample disc etc.; Be the characteristic of rock sample itself on the other hand, comprise mineral composition, hole, microfissure developmental state etc.If condition of work is certain, C value and S value just to a great extent, have reflected the power of mud shale rock sample embrittlement character so, thereby provide new parameter for mud shale brittleness evaluation.
As shown in Figure 1 and Figure 2, mud shale C value and factor of porosity, specific surface area size correlation.From measuring flow process, method, experimental data and document analysis, these two parameters have the potential using value that characterizes pore abundance and inner structure, especially microporosity, microfissure.
Compared with the prior art, advantage of the present invention is:
1) no matter rock sample to be measured is loosely required, be that regular column, irregular bulk and even clastic rock sample all can carry out experiment test, strong adaptability;
2) easy and simple to handle, test period is short, in sample preparation link, only need sample be dried or be dried, and need not carry out other processing.
3) sample broken, sieve, weigh after, through better simply calculating, just can directly obtain reflecting the parameter of rock sample embrittlement character, apply easy.
Accompanying drawing explanation
Fig. 1 is the figure that crosses of mud shale factor of porosity and C value;
Fig. 2 is the figure that crosses of mud shale specific surface area and C value;
Fig. 3 is the experimental provision structural drawing of a kind of mud shale embrittlement of the present invention character;
Fig. 4 is the axial section of the experimental provision of a kind of mud shale embrittlement of the present invention character;
Detailed description of main elements:
1-base; 2-the first guide upright post; 3-the second guide upright post; 4-top board; 5-motor; 6-pulley; 7-traction rope; 8-drops hammer; The horizontal guide pole of 9-; 10-indulges guide pole; 11-sample disc;
Below in conjunction with the drawings and specific embodiments, the present invention is described in more detail, protection scope of the present invention is not limited to following embodiment.
Embodiment
As shown in Figure 3, Figure 4, a kind of experimental provision of mud shale embrittlement character, comprises base 1, the first guide upright post 2, the second guide upright post 3, top board 4, motor 5, pulley 6, traction rope 7, drops hammer 8, horizontal guide pole 9, vertical guide pole 10 and sample disc 11.
The first guide upright post 2 and the second guide upright post 3 are vertically set on respectively on base 1, on the sidewall of the first guide upright post 2 and the second guide upright post 3, are provided with vertically chute, and the height of chute is 80cm, and 8 the stroke of dropping hammer is 80cm.
Utilize the experimental technique of a kind of mud shale embrittlement character that this experimental provision realizes, its step is,
The operation of repeating said steps 2 totally three times, completes the fragmentation to described rock sample to be measured;
The process of grouping is, utilize successively aperture for 0.45mm, 1mm, 2mm, tetra-kinds of sieves of 3mm, rock sample chip to be measured in described sample disc 11 is screened, rock sample chip to be measured described in filtering out five groups, the diameter range of the diameter≤0.45mm of first group of chip, second group of chip is that the diameter range of 0.45～1mm, the 3rd group of chip is that the diameter range of 1～2mm, the 4th group of chip is the diameter >=3mm of 2～3mm, the 5th group of chip;
Respectively each group chip is weighed, obtain successively respectively organizing the weight G of chip
i, the value of i is 1,2,3,4,5;
Computation process is,
Utilize gravimetric method to calculate the number percent C that first group of chip accounts for described rock sample general assembly (TW) to be measured, computing formula is
C=G
1/G； （1）
Wherein, G
1for the weight of first group of chip measuring in step 4, G is the general assembly (TW) of the described rock sample to be measured that measures in step 1;
Utilize surface area method, obtain the total newly-increased surface area S of described rock sample to be measured after cracked;
1) utilize formula (2) to calculate respectively to organize the conversion diameter R ' of chip
i;
R’
i=G/（G
i/R
i）； （2）
Wherein, G is the general assembly (TW) of the described rock sample to be measured that measures in step 1, G
ifor the weight of the i group chip that measures in step 4, the value of i is 1,2,3,4,5; R
imean diameter for the i group chip that calculates in step 4;
2) utilize formula (3) to obtain respectively to organize the newly-increased surface area S of chip
i;
S
i=60×G
i/（D×R’
i）； （3）
Wherein, G
ifor the weight of the i group chip that measures in step 4, R '
ibe the conversion diameter of the i group chip that calculated by formula (2), the value of i is 1,2,3,4,5; D is the density of described rock sample to be measured;
3) utilize formula (4) to calculate total newly-increased surface area S;
S=∑S
i； （4）
Wherein, S
ibe the newly-increased surface area of the i group chip that calculated by formula (3), the value of i is 1,2,3,4,5;
Technique scheme is one embodiment of the present invention, for those skilled in the art, the invention discloses on the basis of application process and principle, be easy to make various types of improvement or distortion, and be not limited only to the described structure of the above-mentioned embodiment of the present invention, therefore previously described mode is preferably, and does not have restrictive meaning.
Claims (13)
1. an experimental provision for mud shale embrittlement character, is characterized in that: described device comprises drop hammer (8), driver module, locating module and collection of rock sample module;
Described rock sample to be measured is arranged in described collection of rock sample module, described in drop hammer (8) be arranged on directly over described collection of rock sample module;
Described locating module with described in drop hammer (8) be fixedly connected with, for the direction of motion of drop hammer described in controlling (8); Described locating module comprises guidepost or guide line, described guidepost or guide line with described in drop hammer (8) be connected;
Described driver module is connected with described locating module, for quantitatively applying the acting force to described dropping hammer (8); Described driver module comprises drive motor.
2. the experimental provision of a kind of mud shale embrittlement character according to claim 1, is characterized in that:
Described locating module comprises a pair of guide upright post (2,3), horizontal guide rod (9) and Der Laengslenker (10); Described a pair of guide upright post (2,3) is vertically set on outside described collection of rock sample module;
On the body of rod sidewall of described a pair of guide upright post (2,3), correspondence offers chute respectively; Described horizontal guide rod (9) is slidably arranged in described chute; Described Der Laengslenker (10) one end with described in drop hammer (8) fixing, the other end is connected with described driver element, and described Der Laengslenker (10) shaft and described horizontal guide rod (9) are fixed;
Described locating module drop hammer described in controlling (8) fall, impact described rock sample to be measured, described driver module drop hammer described in controlling (8) vertically rise.
3. the experimental provision of a kind of mud shale embrittlement character according to claim 1 and 2, is characterized in that:
Described collection of rock sample module comprises base (1) and sample disc (11); A pair of guide upright post (2,3) is fixed on described base (1); Described base (1) upper surface is provided with groove, and the external diameter of described groove and described sample disc (11) matches, and described sample disc (11) embeds and is arranged in described groove, and described rock sample to be measured is arranged in described sample disc (11).
4. the experimental provision of a kind of mud shale embrittlement character according to claim 1 and 2, is characterized in that:
Described driver module comprises drive motor (5), pulley (6) and traction rope (7); The transmission shaft of described drive motor (5) is connected with described pulley (6), and described traction rope (7) one end is connected with pulley (6), and the other end is connected with the Der Laengslenker (10) of locating module.
5. according to the experimental provision of a kind of mud shale embrittlement character described in claim 1 or 4, it is characterized in that:
Described device also comprises top board (4), and described top board (4) gland is upper at described a pair of guide upright post (2,3), and described top board (4) center is provided with perforate; Drive motor (5), pulley (6) are arranged on described top board (4).
6. the experimental provision of a kind of mud shale embrittlement character according to claim 2, is characterized in that:
The altitude range of described chute is 50～80cm.
7. the experimental provision of a kind of mud shale embrittlement character according to claim 3, is characterized in that:
The thickness of described base (1) is 1～3cm, and the degree of depth of described groove is 2～4mm; The material of described sample disc (11) is steel or iron.
8. the experimental provision of a kind of mud shale embrittlement character according to claim 5, is characterized in that:
The opening diameter at described top board (4) center is 4～6cm.
9. the experimental provision of a kind of mud shale embrittlement character according to claim 1, is characterized in that:
Being shaped as of described dropping hammer (8) is cylindrical, and described in the drop hammer lower surface of (8) be plane; The quality of described dropping hammer (8) is 2～5Kg, and its material is steel or iron.
10. the gravimetric method of utilizing the described experimental provision of one of claim 1～9 to realize is analyzed the method for mud shale embrittlement character, it is characterized in that:
Described analytical approach step is,
Step 1, chooses the rock sample described to be measured that weight is greater than 10g, described rock sample to be measured is dried or is dried, and be cooled to room temperature, takes cooled rock sample general assembly (TW) to be measured, is made as G; Described rock sample to be measured is placed in to the center of described sample disc (11), and described sample disc (11) is placed in to the groove at described base (1) center;
Step 2, opens described drive motor (5), and described drive motor (5) drives described pulley (6) rotation that described traction rope (7) is rolled, and then described in driving, drop hammer (8) rise to estimating position; Close described drive motor (5), be connected with described horizontal guide pole (9) and longitudinally guiding bar (10) described in drop hammer (8) along chute, with vertical direction, fall and impact the rock sample to be measured in described sample disc (11);
Step 3, repeating said steps 2, multiplicity 2-6 time, completes the fragmentation to described rock sample to be measured;
Step 4, divides into groups described rock sample chip to be measured;
Rock sample chip to be measured in described sample disc (11) is screened, filter out five groups described in rock sample chip to be measured; The diameter range of the diameter≤0.45mm of first group of chip, second group of chip is that the diameter range of 0.45～1mm, the 3rd group of chip is that the diameter range of 1～2mm, the 4th group of chip is the diameter >=3mm of 2～3mm, the 5th group of chip;
Step 5, takes the weight of one group of rock sample to be measured of chip diameter minimum, i.e. the weight G of first group of chip
1, and calculate the number percent C that it accounts for described rock sample general assembly (TW) G to be measured, computation process is,
C=G
1/G； （1）
Wherein, G
1be the weight of first group of chip, G is the general assembly (TW) of the described rock sample to be measured that measures in step 1;
Step 6, output experimental result, analyzes rock sample mud shale embrittlement character to be measured.
The 11. surface area methods of utilizing the described experimental provision of one of claim 1～9 to realize are analyzed the method for mud shale embrittlement character, it is characterized in that:
Described analytical approach step is,
Step 1, chooses the rock sample described to be measured that weight is greater than 10g, described rock sample to be measured is dried or is dried, and be cooled to room temperature, takes cooled rock sample general assembly (TW) to be measured, is made as G; Described rock sample to be measured is placed in to the center of described sample disc (11), and described sample disc (11) is placed in to the groove at described base (1) center;
Step 2, opens described drive motor (5), and described drive motor (5) drives described pulley (6) rotation that described traction rope (7) is rolled, and then described in driving, drop hammer (8) rise to estimating position; Close described drive motor (5), be connected with described horizontal guide pole (9) and longitudinally guiding bar (10) described in drop hammer (8) along chute, with vertical direction, fall and impact the rock sample to be measured in described sample disc (11);
Step 3, repeating said steps 2, multiplicity 2-6 time, completes the fragmentation to described rock sample to be measured;
Step 4, divides into groups described rock sample chip to be measured;
Rock sample chip to be measured in described sample disc (11) is screened, filter out five groups described in rock sample chip to be measured; The diameter range of the diameter≤0.45mm of first group of chip, second group of chip is that the diameter range of 0.45～1mm, the 3rd group of chip is that the diameter range of 1～2mm, the 4th group of chip is the diameter >=3mm of 2～3mm, the 5th group of chip;
Step 5, measures the weight of respectively organizing described rock sample chip to be measured; Adopt balance to weigh respectively to each group chip, obtain successively respectively organizing the weight G of chip
i, the natural number that the value of i is 1-5;
Step 6, determines and measures the mean diameter of respectively organizing described rock sample chip to be measured;
The mean diameter that the described rock sample chip to be measured of each group is measured to every group of rock sample chip, is designated as R1, R2, R3, R4, R5 successively;
Step 7, utilizes surface area method, obtains the total newly-increased surface area S of described rock sample to be measured after cracked;
Utilize formula (2) to calculate respectively to organize the conversion diameter R ' of chip
i;
R’
i=G/（G
i/R
i）； （2）
Wherein, G is the general assembly (TW) of the described rock sample to be measured that measures in step 1, G
ifor the weight of the i group chip that measures in step 5, the value of i is 1,2,3,4,5; R
imean diameter for the i group chip in step 6;
Utilize formula (3) to obtain respectively to organize the newly-increased surface area S of chip
i;
S
i=60×G
i/（D×R’
i）； （3）
Wherein, G
ifor the weight of the i group chip that measures in step 4, R '
ibe the conversion diameter of the i group chip that calculated by formula (2), the value of i is 1,2,3,4,5; D is the density of described rock sample to be measured;
Utilize formula (4) to calculate total newly-increased surface area S;
S=∑S
i； （4）
Wherein, S
ibe the newly-increased surface area of the i group chip that calculated by formula (3), the value of i is 1,2,3,4,5;
Step 8, exports experimental result, and according to the embrittlement character of rock sample to be measured described in described interpretation.
12. utilize surface area method described in claim 11 to analyze the method for mud shale embrittlement character, it is characterized in that:
Also comprise step 9, calculate the weight G of first group of chip
1account for the number percent C of described rock sample general assembly (TW) G to be measured, computation process is,
C=G
1/G； （1）
Wherein, G
1for the weight of first group of chip measuring in step 5, G is the general assembly (TW) of the described rock sample to be measured that measures in step 1;
Step 10, output experimental result, analyzes rock sample mud shale embrittlement character to be measured.
13. utilize surface area method described in claim 11 to analyze the method for mud shale embrittlement character, it is characterized in that:
In described step 3, multiplicity is 3 times; In the grouping step of described step 4, utilize successively aperture rock sample to be measured to be divided into groups for 0.45mm, 1mm, 2mm, tetra-kinds of sieves of 3mm.
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| CN104034610A (en) * | 2014-05-07 | 2014-09-10 | 西南交通大学 | Drop-hammer stamping impacting tester |
| CN105973728A (en) * | 2016-05-30 | 2016-09-28 | 中国矿业大学(北京) | Experiment table for destruction relation between hydraulic support stiffness and rock strength under dynamic load |
| CN110186755A (en) * | 2019-04-23 | 2019-08-30 | 陕西国防工业职业技术学院 | One kind is with brill shale brittleness evaluation method |
| CN110486005A (en) * | 2018-05-14 | 2019-11-22 | 中国石油化工股份有限公司 | A method of shale gas well dessert layer for identification |
| CN110646325A (en) * | 2019-09-20 | 2020-01-03 | 长安大学 | Survey device of freshly mixed slip form paving concrete construction workability |
| CN112098241A (en) * | 2020-09-14 | 2020-12-18 | 中国矿业大学(北京) | Energy consumption measuring system and measuring and calculating method for crushing of particulate matters |
| CN112229745A (en) * | 2020-08-17 | 2021-01-15 | 中煤科工集团重庆研究院有限公司 | Coal rock hardness detection test device and test method |
| CN112378786A (en) * | 2020-10-27 | 2021-02-19 | 连云港市建设工程质量检测中心有限公司 | Method for measuring compressive strength of rock on site |
| CN113702213A (en) * | 2020-05-21 | 2021-11-26 | 上海梅山钢铁股份有限公司 | Device and method for detecting high-temperature impact crushing performance of bottom slag of aluminum-zinc molten pool |
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| CN104034610A (en) * | 2014-05-07 | 2014-09-10 | 西南交通大学 | Drop-hammer stamping impacting tester |
| CN105973728A (en) * | 2016-05-30 | 2016-09-28 | 中国矿业大学(北京) | Experiment table for destruction relation between hydraulic support stiffness and rock strength under dynamic load |
| CN105973728B (en) * | 2016-05-30 | 2018-09-11 | 中国矿业大学(北京) | Hydraulic support rigidity destroys relationship experiments platform with rock strength under dynamic loading |
| CN110486005A (en) * | 2018-05-14 | 2019-11-22 | 中国石油化工股份有限公司 | A method of shale gas well dessert layer for identification |
| CN110186755A (en) * | 2019-04-23 | 2019-08-30 | 陕西国防工业职业技术学院 | One kind is with brill shale brittleness evaluation method |
| CN110646325A (en) * | 2019-09-20 | 2020-01-03 | 长安大学 | Survey device of freshly mixed slip form paving concrete construction workability |
| CN113702213A (en) * | 2020-05-21 | 2021-11-26 | 上海梅山钢铁股份有限公司 | Device and method for detecting high-temperature impact crushing performance of bottom slag of aluminum-zinc molten pool |
| CN112229745A (en) * | 2020-08-17 | 2021-01-15 | 中煤科工集团重庆研究院有限公司 | Coal rock hardness detection test device and test method |
| CN112098241A (en) * | 2020-09-14 | 2020-12-18 | 中国矿业大学(北京) | Energy consumption measuring system and measuring and calculating method for crushing of particulate matters |
| CN112378786A (en) * | 2020-10-27 | 2021-02-19 | 连云港市建设工程质量检测中心有限公司 | Method for measuring compressive strength of rock on site |
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