CN202039837U - Device for water pressure test in wire line coring borehole under condition of no drilling - Google Patents
Device for water pressure test in wire line coring borehole under condition of no drilling Download PDFInfo
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- CN202039837U CN202039837U CN2011200992935U CN201120099293U CN202039837U CN 202039837 U CN202039837 U CN 202039837U CN 2011200992935 U CN2011200992935 U CN 2011200992935U CN 201120099293 U CN201120099293 U CN 201120099293U CN 202039837 U CN202039837 U CN 202039837U
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- guide peg
- water pressure
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Abstract
The utility model relates to a device for a water pressure test in a wire line coring borehole under the condition of no drilling, which has the advantages that under the condition of no drilling, a test section and water outside the test section are isolated to meet the water pressure test condition and ensure convenient and smooth water drain through a rubber pipe after test. In order to solve the problem, the utility model adopts the technical scheme that the device comprises a boring test section; a hollow drill rod is fixed to the top of the boring test section through a holder at an orifice; the upper end of the drill rod is coaxially connected with a hollow vertical shaft; a vertical shaft sleeve is matched with the vertical shaft and is connected with a vertical shaft chuck of a drilling machine; a drill bit is connected with the lower end of the drill rod; a reducer union suspended packer is arranged at the drill bit; and the interior of the packer is connected with a water pump positioned outside the borehole through the drill rod, the vertical shaft and a high-pressure rubber pipe in sequence. The utility model is mainly suitable for testing the permeability rate of rock masses in a wire line coring borehole with the aperture of 75 mm.
Description
Technical field
The utility model relates to a kind of device of the packer permeability test that do not pull out of hole, and the do not pull out of hole device of packer permeability test of particularly a kind of aperture 75mm wire line coring boring is mainly used in the rock mass permeability rate check test of aperture 75mm wire line coring boring.
Background technology
Along with the exploration The application of new technique, and the needs of hydroelectric project prospecting, run into the boring of the degree of depth more than 100m through regular meeting, in order to improve the probing work efficiency, often adopt wire line coring technology to hole.The current packer permeability test of doing is done packer permeability test with the do not pull out of hole device of packer permeability test of a kind of aperture 75mm wire line coring boring, still, drilling depth surpasses after the 130m, find this device sebific duct difficulty that discharges water, therefore, need sorry boring do the further retrofit of packer permeability test device.
Summary of the invention
The technical problems to be solved in the utility model is: provide a kind of drilling depth between 130m ~ 300m, the aperture is the do not pull out of hole device of packer permeability test of 75mm wire line coring boring, it can be under situation about not pulling out of hole, water body beyond boring test section and the test section is isolated, to satisfy the condition of doing packer permeability test, sebific duct discharged water convenient smooth and easy after guarantee test was finished simultaneously.
The technical scheme that the utility model adopted is: wire line coring creeps into the water pressure test in borehole device that do not pull out of hole, has long 5-10m, the boring test section of diameter 75mm, the drilling rod of a hollow is fixed at the top of boring test section by the aperture clamper, it is characterized in that: the vertical shaft of the coaxial connection hollow in described drilling rod upper end, this vertical shaft axle sleeve cooperates and is connected with the vertical shaft chuck of rig with it, the drilling rod lower end is connected with drill bit, the packing device that described drill bit place adopts the reducer union suspention to be communicated with the drilling rod inner sealing, the inside of this packing device is passed through drilling rod successively, vertical shaft links to each other with the high-pressure rubber pipe water pump outer with being positioned at boring.
Described packing device comprises and the coaxial guide peg that is connected of reducer union, this guide peg overcoat pneumatic hose, these pneumatic hose two ends contact with the guide peg face seal by sealing device, the sealing device is provided with the stopping means that prevents the pneumatic hose landing simultaneously, offer the limbers that is communicated with pneumatic hose and guide peg inside on the described guide peg, the plug sealing is adopted in the guide peg bottom.
Described sealing device comprises two groups of cylindrical sebific duct overcoat and rubber hose coupling cores of fixedlying connected with the pneumatic hose two ends respectively after fastening mutually, and two rubber hose coupling core other ends connect while and guide peg sealing contacts with the rubber hose coupling core top connection and lower contact respectively.
Described stopping means comprises the limiting through hole of radially offering along lower contact, places steel ball, spring and the screw that is connected with this through hole whorl in this hole from center to periphery successively, and is shaped on groove with matching at the guide peg outer wall corresponding to the position of steel ball.
Described guide peg is the seamless steel pipe of a long 130cm, diameter 16mm, thick 2mm, the long 100cm of described pneumatic hose, external diameter 39mm, internal diameter 22mm, and after withheld at its two ends, effectively active length was 90cm.
Described limbers is apart from guide peg lower end 13 ~ 15cm, and its diameter is 5mm.
Described stopping means is apart from guide peg lower end 6cm.
Compressive resistance 〉=the 8Mpa of described high-pressure rubber pipe, the bulbs of pressure of described pneumatic hose are greater than 2 ~ 4 times of maximum packer permeability test force value.
The beneficial effects of the utility model are: this device can directly be installed to the test section top in the wire line coring drilling rod under not trip-out situation, utilize pneumatic hose the water of boring test section and non-test section is kept apart by the principle of compression swelling and do packer permeability test, have characteristics in light weight, simple to operate.After test is finished, utilize sebific duct external and internal pressure difference can be easily the water of sebific duct inside to be discharged, compared to prior art in drilling depth surpass the discharge water structure of difficulty of 130m sebific duct, the utility model can satisfy 130m ~ 300m gun drilling packer permeability test, the scope of application is wider; Device pneumatic hose installation in position and propose all to finish by the wire line coring fisher outside the hole, it is in place accurate, convenient therefore to install pneumatic hose, has alleviated the labour intensity that packer permeability test makes a trip greatly, has shortened the up and down non-cutting time of experimental rig in the hole.In addition, pneumatic hose expands, release discharges water and all need not other auxiliary equipment, has characteristics such as expansion, release are fast.As long as this experimental rig utilizes original rig and water pump just can finish, under with the even depth situation, each test is shortened more than 30min non-cutting time at least, has improved work efficiency.
Description of drawings
Fig. 1 is the structure chart of the utility model when being in passive state.
Fig. 2 is the A portion enlarged drawing of Fig. 1.
Fig. 3 is the structure chart of drilling rod part in the utility model.
Fig. 4 is the structure chart of the utility model packing device.
Fig. 5 is the B portion enlarged drawing of Fig. 4.
Fig. 6 is the structure chart when being in the pressurized swelling state in the utility model practical application.
Fig. 7 is the C portion enlarged drawing of Fig. 6.
The specific embodiment
As shown in Figure 2, present embodiment leaves the hollow drill pipe 3 of an internal diameter 61mm in the boring of aperture 75mm, this drilling rod lower end is connected with the drill bit 12 that internal diameter is 49mm, and drilling rod described in this example 3 adopts common wire line coring drilling rod, generally is made up of outer pipe assembly and inner tube assembly; Its middle external tube assembly is mainly by playing the O type circle that block head 25, bullet card chamber 22, seat ring 18(contain Ф 54 * 2.4), go up reamer 17, outer tube 15, UR device 23 and be connected in sequence, wherein UR device 23 lower ends are connected with drill bit 12.
Before carrying out packer permeability test, the core drilling rod 3 in is salvaged outside the hole earlier with fisher, on carry drilling rod 3 the long boring test section 1 of 5m ~ 10m be set, drilling rod 3 is suspended in the boring by aperture clamper 11; Then the inner tube assembly of drilling rod 3 is reequiped: promptly keep hanging ring more than 21 each parts motionless, hanging ring 21 bottoms are then installed the hollow seamless steel pipe of the long 62cm of tube connector 16(successively by screw thread, and the O type circle that contains Ф 40 * 3.1), interior pipe 14, reducer union 13 and packing device 2, and this packing device is communicated with interior pipe 14 inner sealings; The composite member installation in position that adopts fisher that above-mentioned each parts are formed afterwards, and make packing device 2 all be positioned at drill bit 12 outsides; Arrange the hollow vertical shaft 5 of coaxial connection with it at last in drilling rod 3 upper ends, the outer coaxial vertical shaft chuck 4 that cooperates with it and be connected with rig 7 that is with of this vertical shaft, vertical shaft 5 other ends link to each other by high-pressure rubber pipe 6 water pump 10 outer with being positioned at boring simultaneously, make packing device 2 inside be communicated with water pump 10 sealings by drilling rod 3, vertical shaft 5 and high-pressure rubber pipe 6 successively.
As shown in Figure 1, described packing device 2 comprises that with the reducer union 13 coaxial guide peg 2-10(that are connected be a long 130cm, diameter 16mm, the hollow seamless steel pipe of thick 2mm), the long 100cm of this guide peg overcoat pneumatic hose 2-8(, external diameter 39mm, internal diameter 22mm), these pneumatic hose two ends contact with guide peg 2-10 face seal by sealing device, the sealing device is provided with the stopping means that prevents pneumatic hose 2-8 landing simultaneously, described guide peg 2-10 goes up apart from lower port 13cm, the limbers 2-7(that it is 5mm that the 15cm place respectively offers two diameters respectively is totally four limberss), be used for pneumatic hose 2-8 and guide peg 2-10 internal communication, plug 2-1 sealing is adopted in guide peg 2-10 bottom simultaneously.
Described sealing device comprises two groups of cylindrical sebific duct overcoat 2-6 of fixedlying connected with pneumatic hose 2-8 two ends respectively after fastening mutually and rubber hose coupling core 2-4, behind the fastening, pneumatic hose 2-8 maximum outside diameter is 41 ~ 43mm, this example is 42mm, two rubber hose coupling core 2-4 other ends have screw thread, establish in the screw thread O type circle is housed, be connected with two rubber hose coupling core 2-4 respectively with lower contact 2-2 with the top connection 2-9 that has screw thread respectively, described stopping means is installed on the lower contact 2-2.
Described stopping means comprises the limiting through hole 2-30 that radially offers along lower contact 2-2, place steel ball 2-31(diameter 5mm in this hole from center to periphery successively), the long 8mm of spring 2-32() with the screw 2-33 that is connected with this through hole whorl, and be shaped on groove with matching, this groove distance guide peg 2-10 lower port 6cm in this example corresponding to the position of steel ball 2-31 at guide peg 2-10 outer wall; Can adjust the pressure of stopping means in actual the use by screw 2-33, also can be by disassembling, assembling and replacing steel ball 2-31 or the spring 2-32 of screw 2-33.
This packing device 2 has the pressurized sebific duct and expands, the function that the decompression reduction is shunk, and according to " water power hydraulic engineering water pressure test in borehole rules (DL/T5331-2005) " rules requirement, conventional maximum packer permeability test pressure is P
Examination=1MPa.For making packing device 2 can reach the stagnant water effect of expection, packing device 2 length overalls are 130cm, and are cylindrical, and after wherein pneumatic hose 2-8 withheld and finishes, packing device 2 effective work compression resistance sebific duct length were 90cm, and its external diameter maximum size is 42mm.This packing device 2 bulbs of pressure should surpass 2 ~ 4 times of maximum packer permeability test force value, and for this reason, used high-pressure rubber pipe 6 should be considered the safety factor that twice is above again, and promptly selected high-pressure rubber pipe 6 is withstand voltage all should be greater than 8MPa.
Operating principle of the present utility model is: as shown in Figure 3, starting water pump 10 supplies water in the drilling rod 3 of hollow, because between last reamer 17 and the seat ring 18, with the water shutoff of (Ф 54 * 2.4) O type circle, and between seat ring 18 and the tube connector 16, with the water shutoff of (Ф 40 * 3.1) O type circle, make current pass through the original hydrophthalmia of hanging ring 21 top inner tube assemblies, change and flow in the interior pipe 14, water is through interior pipe 14, after the reducer union 13, water-filling in the pneumatic hose 2-8 of packing device 2, in pneumatic hose 2-8 expansion water filling process, control by pressure meter in the pipeline 8 and valve 9, for making packing device 2 can reach the stagnant water effect of expection, the pressure tabular value needs greater than maximum packer permeability test value more than 2～4 times (according to " water power hydraulic engineering water pressure test in borehole rules (DL/T5331-2005) ", conventional maximum packer permeability test pressure is 1MPa), promptly between 2 MPa～4 MPa.Simultaneously, along with the increase of the pneumatic hose 2-8 inside water pressure and the water yield, shrink downwards gradually on this sebific duct top, and this sebific duct bottom remains static owing to being provided with stopping means.
Because the pneumatic hose 2-8 internal pressure of packing device 2 is greater than 2～4 times of test pressures, pneumatic hose 2-8 has been close on the hole wall, the vertical shaft chuck 4 chucking vertical shafts 5 of rig 7, upwards carry in the hole about drilling rod 2cm, unclamp aperture clamper 11, with rig operation valve the vertical shaft 5 of chucking is moved downwards again, when vertical shaft chuck 4 pressure of rig 7 during greater than the pressure of stopping means, the spring 2-32 of stopping means shrinks, cause steel ball 2-31 to contract simultaneously, the vertical shaft 5 of chucking drives guide peg downward slippage 15cm～20cm of 2-10 moment, but pneumatic hose 2-8 is motionless, and guide peg 2-10 lower end four limbers 2-7 moment this moment skids off outside the pneumatic hose 2-8, and the water that enters in the pneumatic hose 2-8 can't flow out, in the current direction test section 1 in the drilling rod 3, can do packer permeability test this moment simultaneously.
The packer permeability test process: under the condition of waterflow stabilization, every 3min ~ 5min surveys and reads once to be pressed into flow, and continuous four readings meet the setting-out requirement and finish test again.Off-test switches off the pump earlier and 10 stops to supply water in the hole, opens valve 9 simultaneously, makes pressure meter 8 pointers return zero, but since the pressure in the pneumatic hose 2-8 greater than 2～4 times of test pressures, i.e. 2MPa～4MPa.At this moment, pneumatic hose 2-8 has been close on the hole wall, starting rig 7 makes vertical shaft chuck 4 upwards promote 15cm～20cm to vertical shaft 5, make on the guide peg 2-10 and move 15cm～20cm, this moment, four limbers 2-7 of guide peg 2-10 lower end recovered the origin-location, because of the pressure in the pneumatic hose 2-8 greater than the water pressure in the 2-7 of limbers, immediately the water in the pneumatic hose 2-8 is discharged, pneumatic hose 2-8 is returned to the original form very soon.
Be not difficult to find out by above content, in the boring of aperture 75mm wire line coring, utilize the utility model packing device, need not to pull out of hole and just can finish packer permeability test, alleviated the labour intensity that makes a trip greatly.
Claims (8)
1. a wire line coring creeps into the water pressure test in borehole device that do not pull out of hole, has long 5-10m, the boring test section (1) of diameter 75mm, the drilling rod (3) of a hollow is fixed at the top of boring test section by aperture clamper (11), it is characterized in that: the vertical shaft (5) of the coaxial connection hollow in described drilling rod (3) upper end, this vertical shaft axle sleeve cooperates and is connected with the vertical shaft chuck (4) of rig (7) with it, drilling rod (3) lower end is connected with drill bit (12), described drill bit (12) locates to adopt reducer union (13) to suspend the packing device (2) that is communicated with drilling rod (3) inner sealing in midair, and the inside of this packing device is successively by drilling rod (3), vertical shaft (5) links to each other with high-pressure rubber pipe (6) water pump (10) outer with being positioned at boring.
2. wire line coring according to claim 1 creeps into the water pressure test in borehole device that do not pull out of hole, it is characterized in that: described packing device (2) comprises and the coaxial guide peg that is connected of reducer union (13) (2-10), this guide peg overcoat pneumatic hose (2-8), these pneumatic hose two ends contact with guide peg (2-10) face seal by sealing device, the sealing device is provided with the stopping means that prevents pneumatic hose (2-8) landing simultaneously, offer on the described guide peg (2-10) and be communicated with pneumatic hose (2-8) and the inner limbers (2-7) of guide peg (2-10), guide peg (2-10) bottom employing plug (2-1) sealing.
3. wire line coring according to claim 2 creeps into the water pressure test in borehole device that do not pull out of hole, it is characterized in that: described sealing device comprises two groups of cylindrical sebific duct overcoat (2-6) and rubber hose coupling cores (2-4) of fixedlying connected with pneumatic hose (2-8) two ends respectively after fastening mutually, and two rubber hose coupling core other ends connect while and guide peg (2-10) sealing contacts with rubber hose coupling core (2-4) top connection (2-9) and lower contact (2-2) respectively.
4. wire line coring according to claim 3 creeps into the water pressure test in borehole device that do not pull out of hole, it is characterized in that: described stopping means comprises the limiting through hole of radially offering along lower contact (2-2) (2-30), the screw (2-33) of placing steel ball (2-31), spring (2-32) in this hole from center to periphery successively and being connected with this through hole whorl, and be provided with groove with matching corresponding to the position of steel ball (2-31) at guide peg (2-10) outer wall.
5. wire line coring according to claim 2 creeps into the water pressure test in borehole device that do not pull out of hole, it is characterized in that: described guide peg (2-10) is the seamless steel pipe of a long 130cm, diameter 16mm, thick 2mm, the long 100cm of described pneumatic hose (2-8), external diameter 39mm, internal diameter 22mm, after withheld at its two ends, effectively active length was 90cm.
6. wire line coring according to claim 2 creeps into the water pressure test in borehole device that do not pull out of hole, and it is characterized in that: described limbers (2-7) apart from guide peg lower end 13 ~ 15cm, its diameter is 5mm.
7. wire line coring according to claim 2 creeps into the water pressure test in borehole device that do not pull out of hole, and it is characterized in that: described stopping means is apart from guide peg lower end 6cm.
8. wire line coring according to claim 2 creeps into the water pressure test in borehole device that do not pull out of hole, it is characterized in that: the compressive resistance 〉=8Mpa of described high-pressure rubber pipe (6), the bulbs of pressure of described pneumatic hose (2-8) are greater than 2 ~ 4 times of maximum packer permeability test force value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200992935U CN202039837U (en) | 2011-04-07 | 2011-04-07 | Device for water pressure test in wire line coring borehole under condition of no drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200992935U CN202039837U (en) | 2011-04-07 | 2011-04-07 | Device for water pressure test in wire line coring borehole under condition of no drilling |
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| Publication Number | Publication Date |
|---|---|
| CN202039837U true CN202039837U (en) | 2011-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200992935U Expired - Lifetime CN202039837U (en) | 2011-04-07 | 2011-04-07 | Device for water pressure test in wire line coring borehole under condition of no drilling |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603652A (en) * | 2013-11-20 | 2014-02-26 | 华北科技学院 | While-drilling packing water injection test device for coal cracks |
| CN106014390A (en) * | 2016-06-28 | 2016-10-12 | 中国电建集团贵阳勘测设计研究院有限公司 | Water-pressure-caused plugging drill hole water pressing test method |
| CN111155925A (en) * | 2019-07-22 | 2020-05-15 | 中广核铀业新疆发展有限公司 | Vertical shaft type drilling process for uranium deposit in steep dry clastic rock stratum and application |
| CN113670789A (en) * | 2021-07-28 | 2021-11-19 | 金石钻探(唐山)股份有限公司 | Method and device for water pressure test |
-
2011
- 2011-04-07 CN CN2011200992935U patent/CN202039837U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603652A (en) * | 2013-11-20 | 2014-02-26 | 华北科技学院 | While-drilling packing water injection test device for coal cracks |
| CN103603652B (en) * | 2013-11-20 | 2016-05-04 | 华北科技学院 | A kind of with boring packing coal petrography crack water filling testing arrangement |
| CN106014390A (en) * | 2016-06-28 | 2016-10-12 | 中国电建集团贵阳勘测设计研究院有限公司 | Water-pressure-caused plugging drill hole water pressing test method |
| CN106014390B (en) * | 2016-06-28 | 2019-03-05 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of hydraulic pressure cause plug water pressure test in borehole method |
| CN111155925A (en) * | 2019-07-22 | 2020-05-15 | 中广核铀业新疆发展有限公司 | Vertical shaft type drilling process for uranium deposit in steep dry clastic rock stratum and application |
| CN113670789A (en) * | 2021-07-28 | 2021-11-19 | 金石钻探(唐山)股份有限公司 | Method and device for water pressure test |
| CN113670789B (en) * | 2021-07-28 | 2024-05-10 | 金石钻探(唐山)股份有限公司 | Method and device for pressurized water test |
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| CX01 | Expiry of patent term |
Granted publication date: 20111116 |
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| CX01 | Expiry of patent term |