CN102536209B - The device of testing gas drainage drill hole depth through microseismic positioning - Google Patents
The device of testing gas drainage drill hole depth through microseismic positioning Download PDFInfo
- Publication number
- CN102536209B CN102536209B CN201210039435.8A CN201210039435A CN102536209B CN 102536209 B CN102536209 B CN 102536209B CN 201210039435 A CN201210039435 A CN 201210039435A CN 102536209 B CN102536209 B CN 102536209B
- Authority
- CN
- China
- Prior art keywords
- drilling rod
- acoustic receiver
- drill bit
- depth
- drilling
- 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.)
- Expired - Fee Related
Links
Landscapes
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of device of testing gas drainage drill hole depth through microseismic positioning, comprise drill bit, drilling rod, motor, sonic analyzer and acoustic receiver; Drill bit is fixed on one end of drilling rod, and the other end of drilling rod is connected with the power output shaft of motor, and acoustic receiver is fixed on the other end of drilling rod, the signal input sonic analyzer that acoustic receiver receives.When using the device of this testing gas drainage drill hole depth through microseismic positioning, only need this device be arranged on country rock, drill bit is stretched into and holes interior and contact with the country rock of foot of hole, direct utilization spuds in shock wave that moment sends to measure drilling depth, be easy to measure because drill bit breaks the speed propagated in drilling rod of macroseism signal that country rock produces, measure the propagation time of shock wave from drill bit to acoustic receiver, just drilling depth can be calculated accurately, not only measure drilling depth accurately high, monitoring velocity is fast, and cost is lower.
Description
Technical field
The present invention relates to a kind of device measuring drilling depth, particularly relate to a kind of device of testing gas drainage drill hole depth through microseismic positioning.
Background technology
In process of coal mining, Yin Wasi exists, and brings huge harm to safety of coal mines exploitation, as gas explosion, Gas Outburst etc., and the life security of serious harm mine workman and cause tremendous economic to lose.So, during existing pit mining, treat working seam when roadway excavation and hole, be convenient to the spilling of gas in coal seam, reduce the generation of Gas Disaster.But when real coal mine drilling gets rid of gas, Some Enterprises or constructor being for reducing workload, cost-saving, often reduce drilling depth when holing, making to treat that excavation coal-bed gas discharge value is not enough, forming potential hazard.General gas discharge in mine drilling depth, at about 100m, be the safe drill degree of depth of design at present, and in practice, most drilling depth, only in 50% of design drilling depth, has a strong impact on the safety of follow-up exploitation work.
In prior art, mainly there is following deficiency in the device measuring drilling depth: measure the stroke of the auger piston in this device to obtain drilling depth, and piston stroke artificially can be arranged, and easily changes, and truly can not reflect drilling depth; In addition, arrange that the position of measuring point determination drill bit source needs at least 4 probes in roadway surrounding rock face, because country rock is uneven, measure error is very large, and monitoring velocity is slow, and in the odd-numbered day, monitoring quantity is few, and cost is high.
Summary of the invention
For weak point of the prior art, the invention provides a kind of measurement drilling depth accurately high, monitoring velocity is fast, and the device of lower-cost testing gas drainage drill hole depth through microseismic positioning.
In order to solve the problems of the technologies described above, present invention employs following technical scheme:
The device of testing gas drainage drill hole depth through microseismic positioning, comprises drill bit, drilling rod, motor, sonic analyzer and acoustic receiver; Described drill bit is fixed on one end of drilling rod, and the other end of described drilling rod is connected with the power output shaft of described motor, and described acoustic receiver is fixed on the other end of drilling rod, the signal input sonic analyzer that acoustic receiver receives.
As a preferred embodiment of the present invention, described acoustic receiver is provided with launches the signal projector that acoustic receiver receives vibrations sound wave, and described sonic analyzer is provided with the signal receiver that Received signal strength transmitter sends signal.
Compared with prior art, the device of testing gas drainage drill hole depth through microseismic positioning of the present invention, tool has the following advantages:
When 1, using the device of this testing gas drainage drill hole depth through microseismic positioning, only need this device be arranged on country rock, drill bit is stretched into and holes interior and contact with the country rock of foot of hole, direct utilization spuds in shock wave that moment sends to measure drilling depth, be easy to measure because drill bit breaks the speed propagated in drilling rod of macroseism signal that country rock produces, measure the propagation time of shock wave from drill bit to acoustic receiver, just drilling depth can be calculated accurately, not only measure drilling depth accurately high, monitoring velocity is fast, and cost is lower.
2, this device adopt signal projector and signal receiver to be received brokenly first by acoustic receiver acoustic signals that country rock produces wirelessly inputs sonic analyzer, avoid in prior art and adopt wire arrangements and winding thus the defect affecting Signal reception effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of the device of testing gas drainage drill hole depth through microseismic positioning.
In accompanying drawing, 1-drill bit; 2-drilling rod; 3-motor; 4-sonic analyzer; 5-acoustic receiver; 6-signal projector; 7-signal receiver; 8-country rock; 9-switch.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
As shown in Figure 1, the device of testing gas drainage drill hole depth through microseismic positioning, comprises drill bit 1, drilling rod 2, motor 3, sonic analyzer 4 and acoustic receiver 5.Drill bit 1 is fixed on one end of drilling rod 2, and the other end of drilling rod 2 is connected with the power output shaft of motor 3, and acoustic receiver 5 is fixed on the other end of drilling rod 2, the signal input sonic analyzer 4 that acoustic receiver 5 receives.Acoustic receiver 5 is fixed on the end that drilling rod 2 is connected with motor 3, the source signal interference that acoustic receiver 5 is received is little, and signal is obvious.
Utilize this device to measure the method for the firedamp taking-out discharging drilling degree of depth, comprise the steps:
1) speed that the shock wave produced when mensuration drill bit breaks country rock is propagated in drilling rod 2
v.
2) on country rock 8, install the device measuring the firedamp taking-out discharging drilling degree of depth, make drilling rod 2 perpendicular to country rock 8, drill bit 1 stretches into holes interior and contacts with the country rock 8 of foot of hole.
3) by switch 9 synchronous averaging motor 3 and acoustic receiver 5(the present embodiment, switch 9 is fixedly installed on Motor Control case), and the time of rotation is started with timer record drilling rod 2
t 0 .Be set to same switch by starting acoustic receiver 5 and starting the switch controlling the motor 3 of drilling rod 2, realize drilling rod 2 and acoustic receiver 5 synchronous averaging, and start timing.
4) acoustic receiver 5 is received the acoustic signals input sonic analyzer 4 that drill bit 1 breaks country rock generation, carry out filtering process by sonic analyzer 4, to obtain required shocking waveshape, and record the time that acoustic receiver 5 receives the acoustic signals that broken country rock produces first
t.Because other clutter around when testing is more, but drill bit 1 to break the ripple shake that country rock produces the strongest, by certain filtering process, the shocking waveshape needed for test can be obtained, to obtain the propagation time accurately.
5) drilling depth is calculated
h: by formula
h=
l-
hcalculate, in formula:
hfor country rock 8 surface between acoustic receiver 5 distance (in the present embodiment, acoustic receiver 5 is fixedly installed on the outer end of drilling rod 2,
hlength for drilling rod 2 exposes),
lfor the distance between drill bit to acoustic receiver; Wherein,
l=
v(
t-
t 0 ), in formula:
vfor the speed that shock wave is propagated in drilling rod,
tfor acoustic receiver receives brokenly the time of the acoustic signals that country rock produces first,
t 0 for drilling rod starts the time of rotation.
Utilizing this device when monitoring the firedamp taking-out discharging drilling degree of depth, only measure drilling depth, and without the need to measuring final bore position point, the shock wave that can directly utilize that moment of spudding in send is measuring drilling depth.Because the speed that the macroseism signal that drill bit breaks country rock generation is propagated in drilling rod is easy to measure, and the time of drill bit rotational can manual control, the propagation time of shock wave from drill bit to acoustic receiver can be measured, just accurately drilling depth can be calculated, and computational methods are simple, can only need a probe (i.e. an acoustic receiver) just can complete surveying work.
The present embodiment is also provided with on acoustic receiver 5 launches the signal projector 6 that acoustic receiver 5 receives vibrations sound wave, sonic analyzer 4 is provided with the signal receiver 7 that Received signal strength transmitter 6 sends signal, acoustic receiver 5 is received first the acoustic signals that broken country rock 8 produces and wirelessly input sonic analyzer 4, avoid in prior art and adopt wire arrangements and winding thus the defect affecting Signal reception effect.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of the technical program, it all should be encompassed in the middle of right of the present invention.
Claims (1)
1. the device of testing gas drainage drill hole depth through microseismic positioning, is characterized in that: comprise drill bit (1), drilling rod (2), motor (3), sonic analyzer (4) and acoustic receiver (5); Described drill bit (1) is fixed on one end of drilling rod (2), the other end of described drilling rod (2) is connected with the power output shaft of described motor (3), described acoustic receiver (5) is fixed on the end that drilling rod (2) is connected with motor (3), signal input sonic analyzer (4) that acoustic receiver (5) receives; Described acoustic receiver (5) is provided with launches the signal projector (6) that acoustic receiver (5) receives vibrations sound wave, and described sonic analyzer (4) is provided with the signal receiver (7) that Received signal strength transmitter (6) sends signal; The switch starting acoustic receiver is same switch with starting the switch controlling the motor of drilling rod, to realize drilling rod and acoustic receiver synchronous averaging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210039435.8A CN102536209B (en) | 2012-02-21 | 2012-02-21 | The device of testing gas drainage drill hole depth through microseismic positioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210039435.8A CN102536209B (en) | 2012-02-21 | 2012-02-21 | The device of testing gas drainage drill hole depth through microseismic positioning |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102536209A CN102536209A (en) | 2012-07-04 |
| CN102536209B true CN102536209B (en) | 2015-11-18 |
Family
ID=46344083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210039435.8A Expired - Fee Related CN102536209B (en) | 2012-02-21 | 2012-02-21 | The device of testing gas drainage drill hole depth through microseismic positioning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102536209B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867192B (en) * | 2014-03-18 | 2015-06-10 | 中国地质大学（武汉） | Hole depth measuring method based on sound waves in drilling process |
| CN104832160A (en) * | 2015-05-21 | 2015-08-12 | 河北煤炭科学研究院 | Downhole drilling trajectory microseism description method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101107423A (en) * | 2005-01-21 | 2008-01-16 | 圭代利纳公司 | A method and a system for determining the position of a drill bit |
| CN101363824A (en) * | 2008-05-12 | 2009-02-11 | 西安西科测控设备有限责任公司 | Device for real time monitoring mine roof rock formation or concrete structure stability |
| CN101787897A (en) * | 2009-12-30 | 2010-07-28 | 西安西科测控设备有限责任公司 | System and method for predicting coal and gas outburst risk of mine in real time |
| CN201794617U (en) * | 2009-12-30 | 2011-04-13 | 西安西科测控设备有限责任公司 | System for predicting outburst risk of coal and gas in mine in real time |
-
2012
- 2012-02-21 CN CN201210039435.8A patent/CN102536209B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101107423A (en) * | 2005-01-21 | 2008-01-16 | 圭代利纳公司 | A method and a system for determining the position of a drill bit |
| CN101363824A (en) * | 2008-05-12 | 2009-02-11 | 西安西科测控设备有限责任公司 | Device for real time monitoring mine roof rock formation or concrete structure stability |
| CN101787897A (en) * | 2009-12-30 | 2010-07-28 | 西安西科测控设备有限责任公司 | System and method for predicting coal and gas outburst risk of mine in real time |
| CN201794617U (en) * | 2009-12-30 | 2011-04-13 | 西安西科测控设备有限责任公司 | System for predicting outburst risk of coal and gas in mine in real time |
Non-Patent Citations (1)
| Title |
|---|
| 随钻地震中地层参数的预测;韩继勇;《测井技术》;20001231;第24卷(第3期);论文第177页第1栏第6段至第2栏第8段、图1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102536209A (en) | 2012-07-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110486007B (en) | In-situ testing device and method for mechanical parameters of coal mine surrounding rock while drilling | |
| CN204405865U (en) | Advanced geology for tunnel construction predictor | |
| CN105353404A (en) | Gas drilling shaft bottom near-bit continuous impact focus nipple | |
| CN105863616A (en) | Acoustic-wave measurement while drilling system and method for underground coal mine anti-explosion drilling track | |
| CN102562033B (en) | The method of testing gas drainage drill hole depth through microseismic positioning | |
| CN103792582A (en) | Method for detecting roadway broken rock zone | |
| CN102819046B (en) | Two D type coil nuclear magnetic resonance analyser is with roadway front gushing water detection method | |
| CN105464635A (en) | Shale gas well production increase device with inherent frequency measuring unit | |
| CN103775073B (en) | A kind of getting working face geostatic stress distribution characteristics detection method | |
| CN102536209B (en) | The device of testing gas drainage drill hole depth through microseismic positioning | |
| CN104088620A (en) | Intelligent pneumatic supporting leg type vibrating anchor drilling rig capable of recognizing looseness range of surrounding rock | |
| CN104697683A (en) | Dynamic disaster mine anchor rock stability integrated detection method and system | |
| CN104912552A (en) | Coal-rock mass ground stress distribution feature detection method and coal-rock mass ground stress distribution feature detection device | |
| CN106494460B (en) | The high ferro subgrade stability method for early warning in Strong tremor region | |
| CN109779634B (en) | Method for determining position of fractured hard top plate of coal mine ground vertical well | |
| CN103698805A (en) | Columnar jointed rock mass unidirectional micro-seismic monitoring sensor layout direction determining method | |
| Bahrampour et al. | Instrumentation of a roof bolter machine for void detection and rock characterization | |
| CN205139381U (en) | Nearly drill bit bump seismic source nipple joint in gas drilling shaft bottom | |
| CN105649608A (en) | Device for measuring depth of gas drainage borehole in micro-shock locating manner | |
| CN106869904B (en) | A method of Rock Damage state is determined in real time using drilling machine operating parameter is in situ | |
| CN204101017U (en) | Dew well coal mining slope displacement monitoring device | |
| CN105756709A (en) | Working face roof weighing and fracture monitoring method | |
| CN204098942U (en) | The force-measuring anchor stock of high stress tunnel | |
| CN113899811A (en) | Sound wave method test system for accumulative damage of coal mine tunnel rock mass | |
| CN102191941B (en) | Support method for sharply inclined ultra-thick coal seam |
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 |
Granted publication date: 20151118 Termination date: 20190221 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |