CN105301181A - Detonation gas rock breaking experimental device and method - Google Patents
Detonation gas rock breaking experimental device and method Download PDFInfo
- Publication number
- CN105301181A CN105301181A CN201510394641.4A CN201510394641A CN105301181A CN 105301181 A CN105301181 A CN 105301181A CN 201510394641 A CN201510394641 A CN 201510394641A CN 105301181 A CN105301181 A CN 105301181A
- Authority
- CN
- China
- Prior art keywords
- sample
- center pit
- piston
- igniter
- detonation gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention belongs to the technical field of petroleum engineering, and relates to a detonation gas rock breaking experimental device and method. The detonation gas rock breaking experimental device is characterized in that: two upper cover plates are arranged at the upper end of a cylinder body; an upper piston is mounted below each upper cover plate; lower cover plates are arranged at the lower end of the cylinder body; a lower piston is mounted above each lower cover plate; a sample is placed between each upper piston and the corresponding lower piston; a sample central hole is formed between the samples; compression bolts are arranged on the upper cover plates; compression bolts and pressure measurement bolts are arranged on the lower cover plates; a water injection hole is formed in the top end of one upper cover plate; an ignition element assembly is mounted in the middle of the cylinder body, and sequentially penetrates through the upper cover plates, an upper piston central hole, the sample central hole and a lower piston central hole; a pressure measurement sensor is arranged at the bottom end of the ignition element assembly, and is mounted in the lower cover plates in an embedded manner; supporting rods are mounted at the bottoms of the lower cover plates. According to the detonation gas rock breaking experimental device and method, the structure is simple, the theory is scientific, the operation is convenient, and the experimental data is accurate.
Description
Technical field:
The invention belongs to petroleum engineering technical field, relate to a kind of detonation gas and break rock experimental provision and method, by simulation detonation gas to the damage and failure effect of rock, research detonation gas is to the mechanism of action of rock of borehole and failure law.
Background technology:
The most essential characteristic of unconventionaloil pool layer is that the natural percolation ability on stratum is poor, needs transformation just can carry out cost-effective exploitation.At present, the method for the transformation of unconventionaloil pool layer comprises two large classes, and one is that static loading acts on stratum, and outstanding representative is hydraulic fracturing technology; Two be Dynamic Loading in stratum, as high energy gas fracture, explosion technique etc.Nearly decades, hydraulic fracturing technology obtains research and apply widely, but can only produce limited crack due to the method, and the effect of oil formation improvement is limited by very large; And explosion technique can produce radial multiple crackle
[2,6], be conducive to the abundant transformation of oil reservoir, likely obtain better effect of increasing production, be thus subject to petroleum industrial circle and more and more pay attention to, so, be necessary that the relevant rudimentary theoretical question for this technology does more deep research.
Explosive charge be unable to do without experiment to the research of rock failure mechanism of rock rule, and this kind of experiment is to obtain desired result, on the basis of conventional method, also will consider that the factor such as the nonuniformity of geomaterial and the instability of blast load is on the impact of experimental result.The damage and failure effect of blast to rock of explosive is divided into two aspects: one is the damage and failure effect of explosive shock wave, two is destructions of explosion product, because the two is different to the rock failure mechanism of rock mechanism of action, study difficulty can be very large simultaneously, therefore, it is needed to be divided into two mechanisms, two kinds of action effects or mechanism to study respectively.Pit shaft rock is acted on for detonation gas, post holes impact experiment is a kind of research method being easy to realize, document " DavidW.YangandRasmusRisnes.ExperimentalStudyonFractureIn itiationbyPressurePulses.SPE63035, 2000 " post holes impact experiment is disclosed, use water as pressure transmitting medium, realize impacting with dropping hammer, load waveform is easy to control, but the load waveform of water slug is different from detonation gas, the loading speed of water slug is lower than detonation gas, and the impact of the temperature variation produced of not exploding, its action effect can accurately not embody the load waveform of detonation gas.Therefore, seek a kind of detonation gas and break rock experimental provision and method, according to principle overall behind first local, simulate detonation gas to the damage and failure effect of rock, the mechanism of action of understanding detonation gas and damage and failure rule.
Summary of the invention:
The object of the invention is to the shortcoming overcoming prior art existence, seeking design provides a kind of detonation gas to break rock experimental provision and method, by producing gases at high pressure instantaneously after the gunpowder in electric ignition lead fire tool, impacting the center hole wall acting on cement sample makes it ftracture, and realizes the broken rock experiment of detonation gas.
To achieve these goals, the agent structure that detonation gas of the present invention breaks rock experimental provision comprises cylinder body, igniter, sample center pit, upper cover plate, lower cover, upper piston, lower piston, upper piston center pit, support bar, hold-down bolt, pressure measurement bolt, water injection hole, sample, load cell and lower piston center pit; The upper end of the cylinder body of external diameter 320mm, internal diameter 160mm, high 170mm is provided with two upper cover plates, is all provided with a upper piston below each upper cover plate, leaves upper piston center pit between two upper pistons; The lower end of cylinder body is provided with two lower covers, and the top of each lower cover is all provided with a lower piston, leaves lower piston center pit between two lower pistons; Sample is placed with between upper piston and lower piston, the both ends of the surface of sample are posted the thick double faced adhesive tape of 4mm and are wiped with butter, the both ends of the surface making sample respectively with upper piston and lower piston close contact, leave sample center pit in the middle of sample, upper piston center pit, lower piston center pit and sample center pit are on the same axis; Upper cover plate is provided with eight hold-down bolts, for simulated formation pressure, lower cover is provided with four hold-down bolts and four pressure measurement bolts, four pressure measurement bolts are cruciform symmetry distribution, for measuring the pressure change procedure in whole device; The top of upper cover plate is opened and is shaped with water injection hole, by water injection hole to the annular space water filling formed between sample and cylinder body, the sidewall of sample being suffered restraints when expanding, preventing man-made further destroy; Igniter is arranged in the middle of cylinder body, and successively through upper cover plate, upper piston center pit, sample center pit and lower piston center pit, the bottom of igniter is provided with load cell, and load cell installation by adhering is in lower cover; The bottom of lower cover is provided with support bar, for supporting whole experimental provision.
Igniter of the present invention is made up of igniter head, wire, primer charge, heat pipe, starting mix and flash hole, the top of igniter is provided with primer charge, igniter head is provided with in primer charge, igniter head is connected with wire, the lower end of primer charge is connected with heat pipe, the both sides of heat pipe are all provided with starting mix, and the end of heat pipe has flash hole.
Pressure measurement bolt of the present invention adopts H-610 glue to be attached on hold-down bolt by foil gauge and makes, and foil gauge is 2 × 4mm that gum base materials is made
2, 120 Ω foil gauges, foil gauge adopts full-bridge circuit, wherein, two foil gauges use as measurement sheet, and another two is the use of temperature compensation sheet, in the process of gluing foil gauge, first foil gauge is heated to 350 degrees Celsius, to keep after two hours naturally cooling, then be heated to 165 degrees Celsius, keep namely obtaining pressure measurement bolt naturally cooling to room temperature after two hours.
Test of the present invention adopts the cement sample identical with rock material.
Load cell of the present invention adopts the piezoelectric transducer of model C Y-YD-214, and measurement range is 200MPa, and frequency response is greater than 75kHz, and sensitivity is 3.41pC/105Pa.
The present invention realize detonation gas break rock experiment specific embodiment be:
(1), sample is prepared: adopt prior art to prepare the sample of the husky material of saturation water earth rubber, column structure, the intensity error of sample is less than 5%, and diameter is 150mm, is highly 70mm, and centre has the sample center pit that diameter is 15mm;
(2), load cell is demarcated: in demarcation test macro, adopt existing Condition of Sudden Unloading method to carry out dynamic calibration to load cell 14;
(3), test: light igniter, flashpoint gunpowder and starting mix, the moment of primer charge and starting mix blast produces gases at high pressure, and the impact force action of gases at high pressure, in sample center pit, makes specimen broke;
(4), measure and gather experimental data: load cell measures the change of the gas in sample center pit, and gas delta data is transferred to computing machine through existing A/D sampling, by computing machine autostore and analytical gas delta data, and take out sample and observe its cracking situation, complete detonation gas and break rock experiment.
Demarcation test macro of the present invention is made up of hydraulic calibration instrument, charge amplifier, oscillograph and computing machine that sampling card is housed, wherein the hyperchannel charge amplifier of model YE5850 quasistatic charge amplifier or YE5853 selected by charge amplifier, its frequency response is 0.3-100kHz, the frequency band upper limit three magnitudes higher than the frequency (hundreds of hertz) of testing pressure of hydraulic calibration instrument, select suitable frequency response in experimentation, additional signal oscillations can not be produced because of charge amplifier.
The present invention compared with prior art, special igniter is adopted to produce detonation gas, strict Control Assay intensity makes experiment sample, and the gases at high pressure produced in igniter do not leak from the upper and lower end face of sample, in the annular space water filling of sample and cylinder body, when ensureing that sample expands, sidewall suffers restraints, and prevents man-made further destroy; Its structure is simple, and scientific in principle is easy to operate, and experimental data is accurate, for the mechanism of action of detonation gas and failure law provide new scheme.
Accompanying drawing illustrates:
Fig. 1 is the agent structure principle schematic that detonation gas of the present invention breaks rock experimental provision.
Fig. 2 is the structural principle schematic diagram of igniter of the present invention.
Fig. 3 is the calibrating procedure block diagram of Condition of Sudden Unloading method of the present invention.
Fig. 4 is data acquisition flow block diagram of the present invention.
Fig. 5 is the cracking situation map of sample under the different surge pressure of the embodiment of the present invention.
Fig. 6 is the fracture surface of sample schematic diagram that the embodiment of the present invention bursts.
Fig. 7 is the typical pressure curve of embodiment of the present invention sample, wherein pressure history during (a) 4 Crack that is early stage sample, and (b) is pressure history during sample 2 Crack in mid-term.
Embodiment:
Below by embodiment, also the invention will be further described by reference to the accompanying drawings.
Embodiment:
Detonation gas described in the present embodiment breaks rock experimental provision and comprises cylinder body 1, igniter 2, sample center pit 3, upper cover plate 4, lower cover 5, upper piston 6, lower piston 7, upper piston center pit 8, support bar 9, hold-down bolt 10, pressure measurement bolt 11, water injection hole 12, sample 13, load cell 14 and lower piston center pit 15; The upper end of the cylinder body 1 of external diameter 320mm, internal diameter 160mm, high 170mm is provided with two upper cover plates 4, is all provided with between a upper piston 6, two upper pistons 6 and leaves upper piston center pit 8 below each upper cover plate 4; The lower end of cylinder body 1 is provided with two lower covers 5, and the top of each lower cover 5 is all provided with between a lower piston 7, two lower pistons 7 leaves lower piston center pit 15; Sample 13 is placed with between upper piston 6 and lower piston 7, the both ends of the surface of sample 13 are posted the thick double faced adhesive tape of 4mm and are wiped with butter, the both ends of the surface making sample 13 respectively with upper piston 6 and lower piston 7 close contact, leave sample center pit 3 in the middle of sample 13, upper piston center pit 8, lower piston center pit 15 and sample center pit 3 are on the same axis; Upper cover plate 5 is provided with eight hold-down bolts 10, for simulated formation pressure, lower cover is provided with four hold-down bolts 10 and four pressure measurement bolts, 11, four pressure measurement bolts 11 distribution in cruciform symmetry, for measuring pressure change procedure when medicine burns in whole device; The top of upper cover plate 5 is opened and is shaped with water injection hole 12, by water injection hole 12 to the annular space water filling formed between sample 13 and cylinder body 1, the sidewall of sample 3 being suffered restraints when expanding, preventing man-made further destroy; Igniter 2 is arranged in the middle of cylinder body 1, and successively through upper cover plate 5, upper piston center pit 8, sample center pit 3 and lower piston center pit 15, the bottom of igniter 2 is provided with load cell 14, and load cell installation by adhering is in lower cover 5; The bottom of lower cover 5 is provided with support bar 9, for supporting whole experimental provision.
Igniter 2 described in the present embodiment is made up of igniter head 16, wire 17, primer charge 18, heat pipe 19, starting mix 20 and flash hole 21, the top of igniter 2 is provided with primer charge 18, igniter head 16 is provided with in primer charge 18, igniter head 16 is connected with wire 17, the lower end of primer charge 16 is connected with heat pipe 19, the both sides of heat pipe 19 are all provided with starting mix 20, and the end of heat pipe 20 has flash hole 21.
Pressure measurement bolt 11 described in the present embodiment adopts H-610 glue to be attached on hold-down bolt by foil gauge and makes, and foil gauge is 2 × 4mm that gum base materials is made
2, 120 Ω foil gauges, foil gauge adopts full-bridge circuit, wherein, two foil gauges use as measurement sheet, and another two is the use of temperature compensation sheet, in the process of gluing foil gauge, first foil gauge is heated to 350 degrees Celsius, to keep after two hours naturally cooling, then be heated to 165 degrees Celsius, keep namely obtaining pressure measurement bolt 11 naturally cooling to room temperature after two hours.
Test 13 described in the present embodiment and adopt the cement sample identical with rock material.
Described in the present embodiment, load cell 14 adopts the piezoelectric transducer of model C Y-YD-214, and measurement range is 200MPa, and frequency response is greater than 75kHz, and sensitivity is 3.41pC/105Pa.
The present embodiment carry out detonation gas break rock experiment concrete steps be:
(1), prepare sample: husky 50, the sample of saturation water earth rubber making early, middle and late phase three kinds of intensity respectively, intensity error is less than 5%, and size of sample is: diameter 150mm, and the cylinder of height 70mm is the sample center pit of 15mm with diameter; The sample of early strength is the husky sample of cement gel of 7 days curing periods, and compressive strength is 46.91.2MPa, and relative error is 2.5%; Mid-term, the sample of intensity was the husky sample of cement gel of 28 days curing periods, its compressive strength 65.61.8MPa, relative error 2.7%; The sample of late strength is the husky sample of cement gel of 60 days curing periods, compressive strength 72.32.8MPa, relative error 3.9%;
(2), load cell is demarcated: in demarcation test macro, adopt existing Condition of Sudden Unloading method to carry out dynamic calibration to load cell 14;
(3), test: light igniter 2, flashpoint gunpowder 18 and starting mix 20, the moment that primer charge 18 and starting mix 20 explode produces gases at high pressure, and the impact force action of gases at high pressure, in sample center pit 3, makes sample 13 break;
(4), measure and gather experimental data: load cell 14 measures the change of the gas in sample center pit 3, and gas delta data is transferred to computing machine through existing A/D sampling, by computing machine autostore and analytical gas delta data, and take out sample 13 and observe its cracking situation;
(5), analysis design mothod result: as shown in Figure 5 and Figure 6, Fig. 5 is the cracking situation of sample under different surge pressure to sample cracking situation, surge pressure more bulk specimen produce Number of Fractures more; As seen from Figure 6, burst fracture face relatively more neat, few of crushed particles between section, illustrates that sample ruptures under action of pulling stress; And the fracture face of pressure break, have a large amount of rock failure particles between visible section, it can be confirmed, the failure mode of sample under detonation gas effect is tension failure; The typical pressure curve recorded as shown in Figure 7, the load information of pressure rise time and breakdown point pressure (surge pressure) two aspects is comprised in figure, can obtain under this experiment condition thus, the quantitative relationship between sample cracking pattern and the influence factor such as loading environment, material character.
The present embodiment experimentally interpretation of result obtains, and produces Number of Fractures n and pressure peak p
m, pressure rise time Δ t, the elastic modulus E of sample and density p, sample yardstick (inside radius a, external radius b), sample dynamic tensile strength
the density p of water
w, be marked with the height h of water in sample annular space
w, the outside water of the whole annular space height H of sample and sample coefficient of volume compressibility κ
wrelevant, n can be expressed as:
Wherein, the n on the equation left side is dependent variable, the master that on the right of equation 12 amounts are problem quantitatively or independent variable, in these masters are quantitative, independent dimension has three, is mass M, time T and length L respectively, as shown in table 1 the 1st, 2 row, according to the П theorem in dimensional analysis, the characteristic of 9 linear independences can be combined
Table 1: experiment parameter dimensional analysis table
According to physical significance and the mechanical mechanism of problem, the characteristic for load peaks can be combined as
characteristic for sample yardstick can be combined as
characteristic for sample modulus, water constraint can be combined as
for the characteristic of pressure rise time, perturbation features time T=f (E, ρ, a, b), in 5 fundamental quantities, three have independent dimension, can combine 2 characteristics, be write as
therefore, the characteristic combination of pressure rise time Δ t can be write as:
characteristic combined result is as shown in table 1 the 3rd row; Therefore, the dimensionless expression formula of Number of Fractures n is
In above-mentioned 9 characteristics, experimentally condition, wherein
e κ
w,
six amount for same curing period cement sample be constant; In experimentation, around sample, institute's irrigation quantity is basically identical, so
can think constant, the characteristic changed in experiment only has two, and dimensionless expression formula is reduced to:
Function f
nto imply in experiment the impact of those seven not running parameters, Number of Fractures n can be expressed as:
P in formula
mfor testing the center pit gaseous tension peak value measured, Δ t is pressure rise time,
for the dynamic tensile strength of sample material, a is the inside radius of sample, E and ρ is respectively elastic modulus and the density of sample, coefficient k in formula
*for the function of dynamic fracture toughness of metals and initial damage degree, α
*, β is experiment parameter, carrys out matching k by experimental data
*, α
*, β tri-parameters, thus determine the experimental formula of sample cracking.
Claims (7)
1. detonation gas breaks a rock experimental provision, it is characterized in that agent structure comprises cylinder body, igniter, sample center pit, upper cover plate, lower cover, upper piston, lower piston, upper piston center pit, support bar, hold-down bolt, pressure measurement bolt, water injection hole, sample, load cell and lower piston center pit; The upper end of the cylinder body of external diameter 320mm, internal diameter 160mm, high 170mm is provided with two upper cover plates, is all provided with a upper piston below each upper cover plate, leaves upper piston center pit between two upper pistons; The lower end of cylinder body is provided with two lower covers, and the top of each lower cover is all provided with a lower piston, leaves lower piston center pit between two lower pistons; Sample is placed with between upper piston and lower piston, the both ends of the surface of sample are posted the thick double faced adhesive tape of 4mm and are wiped with butter, the both ends of the surface making sample respectively with upper piston and lower piston close contact, leave sample center pit in the middle of sample, upper piston center pit, lower piston center pit and sample center pit are on the same axis; Upper cover plate is provided with eight hold-down bolts, for simulated formation pressure, lower cover is provided with four hold-down bolts and four pressure measurement bolts, four pressure measurement bolts are cruciform symmetry distribution, for measuring the pressure change procedure in whole device; The top of upper cover plate is opened and is shaped with water injection hole, by water injection hole to the annular space water filling formed between sample and cylinder body, the sidewall of sample being suffered restraints when expanding, preventing man-made further destroy; Igniter is arranged in the middle of cylinder body, and successively through upper cover plate, upper piston center pit, sample center pit and lower piston center pit, the bottom of igniter is provided with load cell, and load cell installation by adhering is in lower cover; The bottom of lower cover is provided with support bar, for supporting whole experimental provision.
2. detonation gas breaks rock experimental provision according to claim 1, it is characterized in that described igniter is made up of igniter head, wire, primer charge, heat pipe, starting mix and flash hole, the top of igniter is provided with primer charge, igniter head is provided with in primer charge, igniter head is connected with wire, the lower end of primer charge is connected with heat pipe, and the both sides of heat pipe are all provided with starting mix, and the end of heat pipe has flash hole.
3. detonation gas breaks rock experimental provision according to claim 1, and it is characterized in that described pressure measurement bolt adopts H-610 glue to be attached on hold-down bolt by foil gauge and makes, foil gauge is 2 × 4mm that gum base materials is made
2, 120 Ω foil gauges, foil gauge adopts full-bridge circuit, wherein, two foil gauges use as measurement sheet, and another two is the use of temperature compensation sheet, in the process of gluing foil gauge, first foil gauge is heated to 350 degrees Celsius, to keep after two hours naturally cooling, then be heated to 165 degrees Celsius, keep namely obtaining pressure measurement bolt naturally cooling to room temperature after two hours.
4. detonation gas breaks rock experimental provision according to claim 1, it is characterized in that described test adopts the cement sample identical with rock material.
5. detonation gas breaks rock experimental provision according to claim 1, and it is characterized in that described load cell adopts the piezoelectric transducer of model C Y-YD-214, measurement range is 200MPa, and frequency response is greater than 75kHz, and sensitivity is 3.41pC/105Pa.
6. adopt the detonation gas that device realizes as claimed in claim 5 to break a rock experimental technique, it is characterized in that detailed process is:
(1), sample is prepared: adopt prior art to prepare the sample of the husky material of saturation water earth rubber, column structure, the intensity error of sample is less than 5%, and diameter is 150mm, is highly 70mm, and centre has the sample center pit that diameter is 15mm;
(2), load cell is demarcated: in demarcation test macro, adopt existing Condition of Sudden Unloading method to carry out dynamic calibration to load cell 14;
(3), test: light igniter, flashpoint gunpowder and starting mix, the moment of primer charge and starting mix blast produces gases at high pressure, and the impact force action of gases at high pressure, in sample center pit, makes specimen broke;
(4), measure and gather experimental data: load cell measures the change of the gas in sample center pit, and gas delta data is transferred to computing machine through existing A/D sampling, by computing machine autostore and analytical gas delta data, and take out sample and observe its cracking situation, complete detonation gas and break rock experiment.
7. detonation gas breaks rock experimental technique according to claim 6, it is characterized in that described demarcation test macro is made up of hydraulic calibration instrument, charge amplifier, oscillograph and computing machine that sampling card is housed, wherein the hyperchannel charge amplifier of model YE5850 quasistatic charge amplifier or YE5853 selected by charge amplifier, its frequency response is 0.3-100kHz, the frequency band upper limit three magnitudes higher than the frequency of testing pressure of hydraulic calibration instrument, in experimentation, select corresponding frequency response, additional signal oscillations can not be produced because of charge amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510394641.4A CN105301181B (en) | 2015-07-08 | 2015-07-08 | The broken rock experimental provision of a kind of detonation gas and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510394641.4A CN105301181B (en) | 2015-07-08 | 2015-07-08 | The broken rock experimental provision of a kind of detonation gas and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105301181A true CN105301181A (en) | 2016-02-03 |
| CN105301181B CN105301181B (en) | 2016-05-11 |
Family
ID=55198689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510394641.4A Expired - Fee Related CN105301181B (en) | 2015-07-08 | 2015-07-08 | The broken rock experimental provision of a kind of detonation gas and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105301181B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106442125A (en) * | 2016-07-19 | 2017-02-22 | 中煤科工集团重庆研究院有限公司 | Coal rock mass destruction speed simulation measuring device and method |
| CN106976148A (en) * | 2017-04-07 | 2017-07-25 | 中国葛洲坝集团水泥有限公司 | A kind of mould and cement sample manufacture craft for being used to make cement sample |
| CN109187239A (en) * | 2018-10-16 | 2019-01-11 | 中国矿业大学(北京) | A kind of experimental provision and method for studying detonation gas pressure rock breaking mechanism |
| CN109916956A (en) * | 2019-01-29 | 2019-06-21 | 中国矿业大学(北京) | A kind of test method of quantitative analysis blasting energy distribution |
| CN113654892A (en) * | 2021-08-31 | 2021-11-16 | 武汉大学 | Blasting dynamic response simulator |
| CN114486563A (en) * | 2022-01-04 | 2022-05-13 | 重庆大学 | Mining area ground well shearing failure simulation experiment method |
| CN115254344A (en) * | 2022-06-22 | 2022-11-01 | 中科前衍(深圳)工程科学发展有限公司 | Ore pulverization device and method based on high-pressure gas recycling and mechanical unloading |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4057780A (en) * | 1976-03-19 | 1977-11-08 | The United States Of America As Represented By The United States Energy Research And Development Administration | Method for describing fractures in subterranean earth formations |
| CN102330547A (en) * | 2011-09-23 | 2012-01-25 | 西安石油大学 | Micro-fracture explosion propagation device for interlayer explosion laboratory study |
| US20150184486A1 (en) * | 2013-10-31 | 2015-07-02 | Jeffrey Stephen Epstein | Sacrificial isolation ball for fracturing subsurface geologic formations |
-
2015
- 2015-07-08 CN CN201510394641.4A patent/CN105301181B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4057780A (en) * | 1976-03-19 | 1977-11-08 | The United States Of America As Represented By The United States Energy Research And Development Administration | Method for describing fractures in subterranean earth formations |
| CN102330547A (en) * | 2011-09-23 | 2012-01-25 | 西安石油大学 | Micro-fracture explosion propagation device for interlayer explosion laboratory study |
| US20150184486A1 (en) * | 2013-10-31 | 2015-07-02 | Jeffrey Stephen Epstein | Sacrificial isolation ball for fracturing subsurface geologic formations |
Non-Patent Citations (1)
| Title |
|---|
| 徐鹏等: "爆炸压裂试验系统研制及应用", 《爆破器材》 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106442125A (en) * | 2016-07-19 | 2017-02-22 | 中煤科工集团重庆研究院有限公司 | Coal rock mass destruction speed simulation measuring device and method |
| CN106442125B (en) * | 2016-07-19 | 2019-01-29 | 中煤科工集团重庆研究院有限公司 | Coal rock mass destruction speed simulation measuring device and method |
| CN106976148B (en) * | 2017-04-07 | 2019-05-17 | 中国葛洲坝集团水泥有限公司 | A kind of mold and cement sample manufacture craft for making cement sample |
| CN106976148A (en) * | 2017-04-07 | 2017-07-25 | 中国葛洲坝集团水泥有限公司 | A kind of mould and cement sample manufacture craft for being used to make cement sample |
| CN109187239B (en) * | 2018-10-16 | 2020-11-03 | 中国矿业大学(北京) | Experimental device and method for researching explosive gas pressure rock breaking mechanism |
| CN109187239A (en) * | 2018-10-16 | 2019-01-11 | 中国矿业大学(北京) | A kind of experimental provision and method for studying detonation gas pressure rock breaking mechanism |
| CN109916956A (en) * | 2019-01-29 | 2019-06-21 | 中国矿业大学(北京) | A kind of test method of quantitative analysis blasting energy distribution |
| CN109916956B (en) * | 2019-01-29 | 2020-11-06 | 中国矿业大学(北京) | Test method for quantitatively analyzing blasting energy distribution |
| CN113654892A (en) * | 2021-08-31 | 2021-11-16 | 武汉大学 | Blasting dynamic response simulator |
| CN114486563A (en) * | 2022-01-04 | 2022-05-13 | 重庆大学 | Mining area ground well shearing failure simulation experiment method |
| CN114486563B (en) * | 2022-01-04 | 2023-08-22 | 重庆大学 | Mining area ground well shearing damage simulation experiment method |
| CN115254344A (en) * | 2022-06-22 | 2022-11-01 | 中科前衍(深圳)工程科学发展有限公司 | Ore pulverization device and method based on high-pressure gas recycling and mechanical unloading |
| CN115254344B (en) * | 2022-06-22 | 2024-01-12 | 中科前衍(深圳)工程科学发展有限公司 | Ore pulverizing device and method based on high-pressure gas recycling and mechanical unloading |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105301181B (en) | 2016-05-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105301181B (en) | The broken rock experimental provision of a kind of detonation gas and method | |
| Yuan et al. | Numerical study of the impact mechanism of decoupling charge on blasting-enhanced permeability in low-permeability sandstones | |
| CN103278389B (en) | The method of the dynamic and static elastic parameter synchro measure of a kind of rock | |
| CN102252951B (en) | High-temperature fractured rock mass permeation test device and method | |
| Gebbeken et al. | Hugoniot properties for concrete determined by full-scale detonation experiments and flyer-plate-impact tests | |
| CN103267678B (en) | A kind of method that hydrocarbon-bearing pool rock mass mechanics ground in-situ model recovers and device | |
| Liu et al. | Study on dynamic fracture behavior of mode I crack under blasting loads | |
| US4152941A (en) | Process for measuring the fracture toughness of rock under simulated down-hole stress conditions | |
| CN101788431A (en) | Device and method for testing shear performance of asphalt mixture | |
| CN104949868A (en) | Blasting damaged rock sample preparation and micro-macro combined damage degree determination method | |
| CN104865124A (en) | Shale brittleness index determination method based on rock stress-strain curve and ultrasonic longitudinal wave velocity | |
| CN104931334B (en) | A kind of based on blast self-destruction plus discharge mechanism | |
| CN103513280B (en) | A kind of microseism monitoring simulation system | |
| CN103674739B (en) | A kind of experimental provision of mud shale embrittlement character and experiment analytical method thereof | |
| CN206804429U (en) | A kind of lower hydration of constant load effect influences evaluating apparatus to Tensile Strength of Rock | |
| CN111157372A (en) | Drop hammer impact test system and method for simulating engineering rock mass layer cracking instability process | |
| Zhu et al. | A new method for measuring mode-I dynamic fracture toughness of rock under blasting loads | |
| CN105606454A (en) | Intensity testing device used for temperature-stress field coupling under rock mass expansion | |
| CN106932285B (en) | Device and method for testing rock spalling strength of adjacent water body | |
| CN113790969A (en) | Visual blasting device and testing method for simulating coal rock mass under triaxial stress | |
| Li et al. | Experimental investigations of direct measurement of borehole wall pressure under decoupling charge | |
| Yao et al. | Experimental Study on Damage and Failure of Coal‐Pillar Dams in Coal Mine Underground Reservoir under Dynamic Load | |
| Dong et al. | Model test study on cylindrical blasting stress wave propagation across jointed rock mass with different initial stresses | |
| WEN et al. | An investigation of the mechanical properties of sandstone under coupled static and dynamic loading | |
| Xu et al. | A Study on Triaxial Unloading Test of Columnar‐Jointed‐Rock‐Mass‐Like Material with AW Velocity Analysis |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160511 Termination date: 20180708 |