CN103674739B - A kind of experimental provision of mud shale embrittlement character and experiment analytical method thereof - Google Patents
A kind of experimental provision of mud shale embrittlement character and experiment analytical method thereof Download PDFInfo
- Publication number
- CN103674739B CN103674739B CN201210359391.7A CN201210359391A CN103674739B CN 103674739 B CN103674739 B CN 103674739B CN 201210359391 A CN201210359391 A CN 201210359391A CN 103674739 B CN103674739 B CN 103674739B
- Authority
- CN
- China
- Prior art keywords
- measured
- rock sample
- chip
- group
- embrittlement
- 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
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention is a kind of experimental provision and experiment analytical method thereof of mud shale embrittlement character, and this device comprises a pair guide upright post, horizontal guide rod, Der Laengslenker, drops hammer; A pair guide upright post sidewall is vertically provided with chute respectively, and Der Laengslenker two ends are connected with dropping hammer with driver module respectively, and horizontal guide rod and Der Laengslenker connect as one, and horizontal guide rod two ends are movably arranged in chute; This experimental technique is, drop hammer and fall rock sample to be measured is smashed, with the sieve of different size, chip is sieved into some groups successively, percentage by weight shared by minimum one group of specification is obtained again with gravimetric method, with surperficial area method obtain sample cracked after total newly-increased surface area, thus analyze the embrittlement character of rock sample to be measured; Compared with prior art, the present invention is loose, easy and simple to handle on rock sample shape requirement to be measured, degree of accuracy is high, human factor impact is little, for mud shale evaluation study provides new approaches.
Description
Technical field
The present invention relates to the fields of measurement of rock mechanics parameters, particularly relate 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 that material under external force, as stretching, impact etc., only produces very little distortion and the character of rupture failure.
In drilling and coring delivery process, often break when mud shale rock core goes out tin, when drilling through test core column in laboratory, often cracking phenomena occurs, these are all the concrete manifestations of mud shale embrittlement character.
In recent years, the embrittlement character of oil-gas geology field to mud shale is more and more paid attention to, the achievement in research obtained also gets more and more, and carries out single shaft, the single shaft of three axles under confined pressure condition, the mechanical property of triaxial tests study of rocks on the one hand by bulk samples such as rock cores; On the other hand, carry out the test of the Experiment Parameter such as Poisson ratio, hardness by landwaste, formation carries out mechanical properties of rock analysis and inspection.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, rock core is utilized to obtain mechanics parameter
Under normal circumstances, when the parametric measurement such as Poisson ratio, elastic modulus, need the sample obtaining profile regular cylindrical shape, still needing of having will carry out the pre-service such as saturated brine to sample; Because mud stone, shale and mud shale are by the impact of composition, structure, carrying out being very easy to break in sharp processing process, higher to the requirement of sample, therefore cause a lot of mud shale samples can not do Poisson ratio and elastic modulus test because cannot core column be obtained, the needs of research work can not be met; And when carrying out rock sample processing the early stages such as saturated brine, spended time is more, and work efficiency is lower.
2, utilize cuttings analysis to test and obtain rock mechanics parameters
1) landwaste sonic method
Measured by the acoustic wave character of landwaste, set up the relational expression of rock mechanics parameters and acoustic wave character, calculate the mechanics parameter of landwaste.
The method must select 3 ~ 5 pieces of representational landwaste, and grind two parallel end faces, and will ensure the depth of parallelism and the flatness of two end faces, operation easier is larger.Meanwhile, landwaste sonic method is due to the anisotropy of rock and the inequality opposite sex, and be difficult to set up reliable relational expression, the relational expression error often set up is very large.
2) landwaste compacting measures stratum Poisson ratio method
The method must carry out compacting to landwaste and under returning to formation condition, complicated operation, can only be used for the Poisson ratio determining stratum, and can not be used for the embrittlement character describing rock sample to be measured fast.
3) landwaste plunging obtains rock mechanics parameters
Tested by landwaste penetration hardness, 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 press-in landwaste surface of certain diameter, and be issued to determined maximum load and compression distance in the load of constant increase, obtain loading-displacement curve with data acquisition and processing (DAP) device 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, therefore the method can not be used for the embrittlement character describing mud shale.
3, solid coefficient is measured with weighted-drop
Solid coefficient is the soundness index of the expression sample opposing external force ability for coal sample, also claims Pu Shi solid coefficient or Protodyakonov coeffic, is an important parameter, and has bioassay standard.
The experimental provision of weighted-drop mainly comprises smashs the part such as cylinder, metering cylinder composition to pieces.Wherein, smash cylinder to pieces to be made up of three parts at the bottom of weight, cylindrical shell, cylinder; Metering cylinder is made up of piston chi and graduated cylinder; The defect adopting weighted-drop to bring is:
1) weight is by rope by manual control, because the operating habit of manipulator is different with mode, may bring certain impact to sample broke, affects the accuracy of data further;
2) in weight drop process, may produce with cylinder inboard wall and rub, thus make weight be that non-free falling bodies shape falls, cause the data obtained to occur deviation;
3) bottom of cylindrical shell is in after sample broke, 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, slightly careless manipulation will cause the sample carryover of part in broken powder in cylindrical shell, and affects the accuracy of data;
4) sample particle diameter collected being less than 0.5mm compacting gauge height in graduated cylinder, because metering is completed by manual operation, may there is personal error, the accuracy of final impact analysis in the data that different operating person obtains.
For the embrittlement character describing mud shale, there is following problem in weighted-drop:
1) weighted-drop is applied to the experimental technique 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) after adopting weighted-drop disrupted sample, only collect a diameter and be less than the sample of 0.5mm and analyze with the height of sample in metering cylinder, sample burst property information loss, imperfect certainly will be caused.
Above-mentioned various experiment research and achievement can reflect the embrittlement character of rock to a certain extent, but because these methods differ greatly in sample requirement, operating conditions, application purpose and the scope of application thereof etc., the saying that the embrittlement property definition of rock is also ununified with tolerance in addition.So, obtained the parameter of reflection rock embrittlement character by different experimental provisions and method, there is theory and practice meaning.
Summary of the invention
The present invention is directed to the embrittlement characteristic of mud shale, provide a kind of experimental provision of mud shale embrittlement character, and 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 8 to be fixedly connected with described dropping hammer, for drop hammer described in controlling 8 direction of motion; Described locating module comprises guidepost or guide line, and described guidepost or guide line 8 to be connected with described dropping hammer;
Described driver module is connected with described locating module, for quantitatively apply to described drop hammer 8 acting force; Described driver module comprises drive motor.
Described locating module comprises a pair guide upright post 2,3, horizontal guide rod 9 and Der Laengslenker 10; Described a pair 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 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 and described dropping hammer 8 are fixed, and the other end is connected with described driver element, and described Der Laengslenker 10 shaft and described horizontal guide rod 9 fixing;
To drop hammer described in described locating module controls 8 whereabouts, impact described rock sample to be measured, drop hammer described in described driver module controls and 8 vertically to rise.
Described collection of rock sample module comprises base 1 and sample disc 11; A pair 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 is 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 center is 4 ~ 6cm.
Described top board 4 gland is at described a pair guide upright post 2, and on 3, described top board 4 center is provided with perforate; Drive motor 5, pulley 6 are arranged on described top board 4.
Described drop hammer 8 shape be cylindrical, and described in drop hammer 8 lower surface be plane; Described drop hammer 8 quality be 2 ~ 5Kg, its material is steel or iron.
Second inventive point of the present invention is the method adopting gravimetric analysis mud shale embrittlement character,
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 is cooled to room temperature, taking cooled rock sample general assembly (TW) to be measured, be set to G; Described rock sample to be measured is placed in the center of described sample disc 11, and described sample disc 11 is placed in the groove at described base 1 center;
Step 2, opens described drive motor 5, and described drive motor 5 drives described pulley 6 to rotate described traction rope 7 is rolled, and then drops hammer described in driving and 8 rise to estimating position; Close described drive motor 5, being connected with drops hammer described in described horizontal guide rod 9 and Der Laengslenker 10 8 to fall with vertical direction along chute and to impact the rock sample to be measured in described sample disc 11;
Step 3, repeating said steps 2, multiplicity 2-6 time, namely 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, filters out rock sample chip to be measured described in five groups; Diameter >=3mm that the diameter≤0.45mm of first group of chip, the diameter range of second group of chip are 0.45 ~ 1mm, the diameter range of the 3rd group of chip is 1 ~ 2mm, the diameter range of the 4th group of chip is 2 ~ 3mm, the 5th group of chip;
Step 5, takes the weight of one group of minimum rock sample to be measured of chip diameter, 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 rock sample described to be measured measured in step 1;
Step 6, exports experimental result, analyzes rock sample mud shale embrittlement character to be measured.
In described step 3, multiplicity is 3 times; In the grouping step of described step 4, aperture is utilized to divide into groups to rock sample to be measured for 0.45mm, 1mm, 2mm, 3mm tetra-kinds of sieves successively.
3rd inventive point of the present invention is the method adopting surperficial area method to analyze mud shale embrittlement character,
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 is cooled to room temperature, taking cooled rock sample general assembly (TW) to be measured, be set to G; Described rock sample to be measured is placed in the center of described sample disc 11, and described sample disc 11 is placed in the groove at described base 1 center;
Step 2, opens described drive motor 5, and described drive motor 5 drives described pulley 6 to rotate described traction rope 7 is rolled, and then drops hammer described in driving and 8 rise to estimating position; Close described drive motor 5, being connected with drops hammer described in described horizontal guide rod 9 and Der Laengslenker 10 8 to fall with vertical direction along chute and to impact the rock sample to be measured in described sample disc 11;
Step 3, repeating said steps 2, multiplicity 2-6 time, preferably 3 times, namely completes the fragmentation to described rock sample to be measured;
Step 4, divides into groups described rock sample chip to be measured;
Utilize aperture to divide into groups to screen the rock sample chip to be measured in described sample disc 11 to rock sample to be measured for 0.45mm, 1mm, 2mm, 3mm tetra-kinds of sieves successively, filter out rock sample chip to be measured described in five groups; Diameter >=3mm that the diameter≤0.45mm of first group of chip, the diameter range of second group of chip are 0.45 ~ 1mm, the diameter range of the 3rd group of chip is 1 ~ 2mm, the diameter range of the 4th group of chip is 2 ~ 3mm, the 5th group of chip;
Step 5, measures the weight of rock sample chip to be measured described in each group; Adopt balance to weigh respectively to each group of chip, obtain the weight G of each group of chip successively
i, the value of i is the natural number of 1-5;
Step 6, determines and measures the mean diameter of rock sample chip to be measured described in each group;
The mean diameter of rock sample chip is often organized to rock sample chip to be measured measurement described in each group, is designated as R1, R2, R3, R4, R5 successively;
Step 7, utilizes surperficial area method, obtain described rock sample to be measured cracked after total newly-increased surface area S;
Formula (2) is utilized to calculate the conversion diameter R ' of each group of chip
i;
R’
i＝G/(G
i/R
i)；(2)
Wherein, G is the general assembly (TW) of the rock sample described to be measured measured in step 1, G
ifor the weight of i-th group of chip measured in step 5, the value of i is 1,2,3,4,5; R
ifor the mean diameter of group chip of i-th in step 6;
Formula (3) is utilized to obtain the newly-increased surface area S of each group of chip
i;
S
i＝60×G
i/(D×R’
i)；(3)
Wherein, G
ifor the weight of i-th group of chip measured in step 4, R '
ibe the conversion diameter of the i-th group of chip 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;
Formula (4) is utilized to calculate total newly-increased surface area S;
S＝∑S
i；(4)
Wherein, S
ibe the newly-increased surface area of the i-th group of chip calculated by formula (3), the value of i is 1,2,3,4,5;
Step 8, exports experimental result, and according to described interpretation the embrittlement character of rock sample to be measured.
Be that sample is cracked based on parameter acquisition procedure main manifestations, therefore be no matter the C value of gravimetric method, or the total newly-increased surface area S value of surperficial area method, be all reflect the degree of crushing of sample under certain effect power from a side.C value and S value larger, then represent the easier fragmentation of mud shale rock sample, embrittlement character is stronger; C value and S value less, represent that mud shale rock sample is more difficult cracked, embrittlement character is more weak, thus provides 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 etc. of the quality of dropping hammer, the stroke dropped hammer, number of shocks, sample disc; 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, so C value and S value are with regard to a great extent, reflect the power of mud shale rock sample embrittlement character, thus 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 mensuration flow process, method, experimental data and document analysis, these two parameters have sign pore abundance and inner structure, the especially potential using value of microporosity, microfissure.
Compared with the prior art, advantage of the present invention is:
1) rock sample to be measured is required loose, no matter be regular columnar, 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 dry sample or dry, and need not carry out other process.
3) sample broke, sieve, weigh after, just directly can obtain through better simply calculating the parameter reflecting 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-first guide upright post; 3-second guide upright post; 4-top board; 5-motor; 6-pulley; 7-traction rope; 8-drops hammer; The horizontal guide rod of 9-; 10-Der Laengslenker; 11-sample disc;
Be described in more detail the present invention below in conjunction with the drawings and specific embodiments, 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, first guide upright post 2, second guide upright post 3, top board 4, motor 5, pulley 6, traction rope 7, drops hammer 8, horizontal guide rod 9, Der Laengslenker 10 and sample disc 11.
Base 1 is the steel plate that 2cm is thick, and base 1 center is provided with the groove matched with sample disc 11 external diameter, and groove is a degree of depth is the circular trough of 3mm, and sample disc 11 embeds and arranges in a groove.The material of sample disc 11 is steel, and its center is placed with mud shale sample.
Drop hammer and 8 be one it is arranged on directly over sample disc 11 with flat steel cylinder, drop hammer 8 quality be 5kg.
First guide upright post 2 and the second guide upright post 3 are vertically set on base 1 respectively, and the sidewall of the first guide upright post 2 and the second guide upright post 3 is provided with chute vertically, and the height of chute is 80cm, namely drop hammer 8 stroke be 80cm.
Der Laengslenker 10 is vertically arranged, and its upper/lower terminal 8 to be connected with traction rope 7 and dropping hammer respectively.Horizontal guide rod 9 is horizontally disposed with, and itself and Der Laengslenker 10 connect as one, and horizontal guide rod 9 two ends are movably arranged in chute.
Top board 4 is pressed on the first guide upright post 2 and the second guide upright post 3 upper surface, and motor 5 is fixed on the upper surface of top board 4, and pulley 6 is fixed on the transmission shaft 6 of motor, and top board 4 center is provided with perforate, and its aperture is 5cm; Traction rope 7 on pulley 6 passes perforate and is connected with Der Laengslenker 10.
The experimental technique of a kind of mud shale embrittlement character utilizing this experimental provision to realize, its 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 is cooled to room temperature, taking cooled rock sample general assembly (TW) G to be measured; Described rock sample to be measured is placed in the center of described sample disc 11, and described sample disc 11 is placed in the groove at described base 1 center;
Step 2, opens described motor 5, and described motor 5 drives described pulley 6 to rotate described traction rope 7 is rolled, and then drops hammer described in driving and 8 rise to estimating position; Close described motor 5, described in drop hammer 8 vertically free-falling the rock samples to be measured impacted in described sample disc 11;
The operation of repeating said steps 2 totally three times, namely completes the fragmentation to described rock sample to be measured;
Step 3, divides into groups described rock sample chip to be measured;
The process of grouping is, utilize aperture for 0.45mm, 1mm, 2mm, 3mm tetra-kinds of sieves successively, rock sample chip to be measured in described sample disc 11 is screened, filter out rock sample chip to be measured described in five groups, namely diameter≤the 0.45mm of first group of chip, the diameter range of second group of chip be 0.45 ~ 1mm, the diameter range of the 3rd group of chip is 1 ~ 2mm, diameter >=3mm that the diameter range of the 4th group of chip is 2 ~ 3mm, the 5th group of chip;
Step 4, determines and measures mean diameter and the quality of rock sample chip to be measured described in each group; The mean diameter of rock sample chip is often organized to rock sample chip to be measured measurement described in each group, is designated as R1, R2, R3, R4, R5 successively.In example, R1=0.225mm, R2=0.725mm, R3=1.5mm, R4=2.5mm, R5=3.5mm
Respectively each group of chip is weighed, obtain the weight G of each group of chip successively
i, the value of i is 1,2,3,4,5;
Step 5, calculates 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, and described rock sample to be measured cracked after total newly-increased surface area S;
Computation process is,
Utilize gravimetric method to calculate 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 measured in step 4, G is the general assembly (TW) of the rock sample described to be measured measured in step 1;
Utilize surperficial area method, obtain described rock sample to be measured cracked after total newly-increased surface area S;
1) formula (2) is utilized to calculate the conversion diameter R ' of each group of chip
i;
R’
i＝G/(G
i/R
i)；(2)
Wherein, G is the general assembly (TW) of the rock sample described to be measured measured in step 1, G
ifor the weight of i-th group of chip measured in step 4, the value of i is 1,2,3,4,5; R
ifor the mean diameter of i-th group of chip calculated in step 4;
2) formula (3) is utilized to obtain the newly-increased surface area S of each group of chip
i;
S
i＝60×G
i/(D×R’
i)；(3)
Wherein, G
ifor the weight of i-th group of chip measured in step 4, R '
ibe the conversion diameter of the i-th group of chip 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) formula (4) is utilized to calculate total newly-increased surface area S;
S＝∑S
i；(4)
Wherein, S
ibe the newly-increased surface area of the i-th group of chip calculated by formula (3), the value of i is 1,2,3,4,5;
Step 6, exports experimental result, and according to described interpretation the embrittlement character of rock sample to be measured.
Technique scheme is one embodiment of the present invention, for those skilled in the art, on the basis that the invention discloses application process and principle, be easy to make various types of improvement or distortion, and the structure be not limited only to described by the above-mentioned embodiment of the present invention, therefore previously described mode just preferably, and do 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;
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 drop hammer with described (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 drop hammer with described (8) be connected;
Described driver module is connected with described locating module, for quantitatively applying the acting force to described drop 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 guide upright post (2,3), horizontal guide rod (9) and Der Laengslenker (10); Described a pair 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 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 and described drop hammer (8) are fixed, and the other end is connected with described driver module, and described Der Laengslenker (10) shaft and described horizontal guide rod (9) are fixed;
Drop hammer described in described locating module controls (8) fall, impact described rock sample to be measured, drop hammer described in described driver module controls (8) vertically rise.
3. the experimental provision of a kind of mud shale embrittlement character according to claim 2, is characterized in that:
Described collection of rock sample module comprises base (1) and sample disc (11); A pair guide upright post (2,3) is fixed on described base (1); Described base (1) upper surface is provided with groove, the external diameter of described groove and described sample disc (11) matches, 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 3, 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. the experimental provision of a kind of mud shale embrittlement character according to claim 4, is characterized in that:
Described device also comprises top board (4), and described top board (4) gland is on a pair 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 50cm ~ 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 1cm ~ 3cm, and the degree of depth of described groove is 2mm ~ 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 4cm ~ 6cm.
9. the experimental provision of a kind of mud shale embrittlement character according to claim 1, is characterized in that:
The shape of described drop hammer (8) is cylindrical, and described in the drop hammer lower surface of (8) be plane; The quality of described drop hammer (8) is 2Kg ~ 5Kg, and its material is steel or iron.
10. the method for the gravimetric analysis mud shale embrittlement character utilizing the experimental provision described in claim 4 to realize, 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 is cooled to room temperature, taking cooled rock sample general assembly (TW) to be measured, be set to G; Described rock sample to be measured is placed in the center of described sample disc (11), and described sample disc (11) is placed in the groove at described base (1) center;
Step 2, open described drive motor (5), described drive motor (5) drives described pulley (6) rotation that described traction rope (7) is rolled, and then drop hammer described in driving (8) rise to estimating position; Close described drive motor (5), be connected with to drop hammer described in described horizontal guide rod (9) and Der Laengslenker (10) (8) and fall with vertical direction along chute and impact the rock sample to be measured in described sample disc (11);
Step 3, repeating said steps 2, multiplicity 2-6 time, namely 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, filters out rock sample chip to be measured described in five groups; Diameter >=3mm that the diameter≤0.45mm of first group of chip, the diameter range of second group of chip are 0.45mm ~ 1mm, the diameter range of the 3rd group of chip is 1mm ~ 2mm, the diameter range of the 4th group of chip is 2mm ~ 3mm, the 5th group of chip;
Step 5, takes the weight of one group of minimum rock sample to be measured of chip diameter, 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 rock sample described to be measured measured in step 1;
Step 6, exports experimental result, analyzes rock sample mud shale embrittlement character to be measured.
The 11. surperficial area method utilizing the experimental provision described in claim 4 to realize analyze 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 is cooled to room temperature, taking cooled rock sample general assembly (TW) to be measured, be set to G; Described rock sample to be measured is placed in the center of described sample disc (11), and described sample disc (11) is placed in the groove at described base (1) center;
Step 2, open described drive motor (5), described drive motor (5) drives described pulley (6) rotation that described traction rope (7) is rolled, and then drop hammer described in driving (8) rise to estimating position; Close described drive motor (5), be connected with to drop hammer described in described horizontal guide rod (9) and Der Laengslenker (10) (8) and fall with vertical direction along chute and impact the rock sample to be measured in described sample disc (11);
Step 3, repeating said steps 2, multiplicity 2-6 time, namely 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, filters out rock sample chip to be measured described in five groups; Diameter >=3mm that the diameter≤0.45mm of first group of chip, the diameter range of second group of chip are 0.45mm ~ 1mm, the diameter range of the 3rd group of chip is 1mm ~ 2mm, the diameter range of the 4th group of chip is 2mm ~ 3mm, the 5th group of chip;
Step 5, measures the weight of rock sample chip to be measured described in each group; Adopt balance to weigh respectively to each group of chip, obtain the weight G of each group of chip successively
i, the value of i is the natural number of 1-5;
Step 6, determines and measures the mean diameter of rock sample chip to be measured described in each group;
The mean diameter of rock sample chip is often organized to rock sample chip to be measured measurement described in each group, is designated as R1, R2, R3, R4, R5 successively;
Step 7, utilizes surperficial area method, obtain described rock sample to be measured cracked after total newly-increased surface area S;
Formula (2) is utilized to calculate the conversion diameter R ' of each group of chip
i;
R’
i＝G/(G
i/R
i)；(2)
Wherein, G is the general assembly (TW) of the rock sample described to be measured measured in step 1, G
ifor the weight of i-th group of chip measured in step 5, the value of i is 1,2,3,4,5; R
ifor the mean diameter of group chip of i-th in step 6;
Formula (3) is utilized to obtain the newly-increased surface area S of each group of chip
i;
S
i＝60×G
i/(D×R’
i)；(3)
Wherein, G
ifor the weight of i-th group of chip measured in step 4, R '
ibe the conversion diameter of the i-th group of chip 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;
Formula (4) is utilized to calculate total newly-increased surface area S;
S＝∑S
i；(4)
Wherein, S
ibe the newly-increased surface area of the i-th group of chip calculated by formula (3), the value of i is 1,2,3,4,5;
Step 8, exports experimental result, and according to described interpretation the embrittlement character of rock sample to be measured.
12. utilize surperficial 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 measured in step 5, G is the general assembly (TW) of the rock sample described to be measured measured in step 1;
Step 10, exports experimental result, analyzes rock sample mud shale embrittlement character to be measured.
13. utilize surperficial 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, aperture is utilized to divide into groups to rock sample to be measured for 0.45mm, 1mm, 2mm, 3mm tetra-kinds of sieves successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210359391.7A CN103674739B (en) | 2012-09-24 | 2012-09-24 | A kind of experimental provision of mud shale embrittlement character and experiment analytical method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210359391.7A CN103674739B (en) | 2012-09-24 | 2012-09-24 | A kind of experimental provision of mud shale embrittlement character and experiment analytical method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103674739A CN103674739A (en) | 2014-03-26 |
| CN103674739B true CN103674739B (en) | 2016-01-20 |
Family
ID=50312957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210359391.7A Active CN103674739B (en) | 2012-09-24 | 2012-09-24 | A kind of experimental provision of mud shale embrittlement character and experiment analytical method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103674739B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034610B (en) * | 2014-05-07 | 2016-05-18 | 西南交通大学 | A kind of drop stamping impact tester |
| 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 |
| CN110486005B (en) * | 2018-05-14 | 2021-10-15 | 中国石油化工股份有限公司 | Method for identifying dessert layer of shale gas well |
| 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 |
| CN112229745B (en) * | 2020-08-17 | 2022-07-15 | 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 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1698689A1 (en) * | 1987-01-07 | 1991-12-15 | Северо-Восточный Комплексный Научно-Исследовательский Институт Дальневосточного Научного Центра Ан Ссср | Method of determining dynamic strength of brittle materials |
| JPH10267814A (en) * | 1997-03-21 | 1998-10-09 | Nippon Plast Co Ltd | Drill body for impact test as well as method and apparatus for measurement of impact strength |
| CN1975368A (en) * | 2006-12-22 | 2007-06-06 | 重庆信威通信技术有限责任公司 | Packaging piece fall-down test machine |
| CN101545841A (en) * | 2008-03-25 | 2009-09-30 | 四川升拓检测技术有限责任公司 | Method and device for falling-sphere spot testing of mechanics characteristics of rock and soil materials |
| CN202372417U (en) * | 2011-12-21 | 2012-08-08 | 西安科技大学 | Road material strength parameter tester based on live load |
-
2012
- 2012-09-24 CN CN201210359391.7A patent/CN103674739B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1698689A1 (en) * | 1987-01-07 | 1991-12-15 | Северо-Восточный Комплексный Научно-Исследовательский Институт Дальневосточного Научного Центра Ан Ссср | Method of determining dynamic strength of brittle materials |
| JPH10267814A (en) * | 1997-03-21 | 1998-10-09 | Nippon Plast Co Ltd | Drill body for impact test as well as method and apparatus for measurement of impact strength |
| CN1975368A (en) * | 2006-12-22 | 2007-06-06 | 重庆信威通信技术有限责任公司 | Packaging piece fall-down test machine |
| CN101545841A (en) * | 2008-03-25 | 2009-09-30 | 四川升拓检测技术有限责任公司 | Method and device for falling-sphere spot testing of mechanics characteristics of rock and soil materials |
| CN202372417U (en) * | 2011-12-21 | 2012-08-08 | 西安科技大学 | Road material strength parameter tester based on live load |
Non-Patent Citations (3)
| Title |
|---|
| "Research of microcosmic mechanism of brittle-plastic transition for granite under high temperature";X. Xiao-li et al.;《Procedia Earth and Planetary Science》;20091231;第432-437页 * |
| "岩土材料的脆性研究";刘恩龙 等;《岩石力学与工程学报》;20051031;第24卷(第19期);第3449-3453页 * |
| "页岩脆性的室内评价方法及改进";李庆辉 等;《岩石力学与工程学报》;20120831;第31卷(第8期);第1680-1685页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103674739A (en) | 2014-03-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103674739B (en) | A kind of experimental provision of mud shale embrittlement character and experiment analytical method thereof | |
| CN103278389B (en) | The method of the dynamic and static elastic parameter synchro measure of a kind of rock | |
| CN105866835B (en) | A kind of tomography three dimensional closure quantitative evaluation method based on crustal stress distribution | |
| CN105221141B (en) | A kind of mud shale brittleness index Forecasting Methodology | |
| CN105319603A (en) | Compact sandstone reservoir complex netted fracture prediction method | |
| Wang et al. | Experimental study on cracking damage characteristics of a soil and rock mixture by UPV testing | |
| CN103267678B (en) | A kind of method that hydrocarbon-bearing pool rock mass mechanics ground in-situ model recovers and device | |
| CN108169099A (en) | A kind of shale gas RESERVOIR PORE STRUCTURE quantitative calculation method based on nuclear magnetic resonance | |
| AU2013246743B2 (en) | Method for determining geomechanical parameters of a rock sample | |
| CN107505204A (en) | A kind of method that damage constructive model of rock mass is established based on least energy consumption principle | |
| CN104949868A (en) | Blasting damaged rock sample preparation and micro-macro combined damage degree determination method | |
| Li et al. | Insights into controlling factors of pore structure and hydraulic properties of broken rock mass in a geothermal reservoir | |
| Zheng | Laboratory and discrete element study of proppant crushing and embedment and their influence on fracture conductivity | |
| CN109187916A (en) | Continuous deep processing method and device for judging formation brittleness | |
| Lu et al. | Effect of particle size on the compressive behavior of dry sand under confinement at high strain rates | |
| McPhee et al. | Geomechanics tests | |
| Huang et al. | A dynamic ball compression test for understanding rock crushing | |
| Zhang et al. | Experimental study on anisotropic strength properties of sandstone | |
| CN117309639A (en) | Method and equipment for confirming stress critical value of coal body at rock burst deep base point | |
| CN116298104A (en) | Digital characterization method of shale mineral microstructure | |
| Soroush et al. | Evaluation of some physical and mechanical properties of rocks using ultrasonic pulse technique and presenting equations between dynamic and static elastic constants | |
| Zhao et al. | Coal structure characteristics in the northern Qinshui basin and their discrimination method based on the particle size of drilling cuttings | |
| Bai | Experimental research on rock drillability in the center of junggar basin | |
| Fjær et al. | Mechanical properties and stress data from laboratory analysis | |
| Dhawan et al. | Relationship between static and two types of dynamic moduli for different rocks |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |