CN105178938B - Extra-deep hole drilling hydraulic fracturing rock masses fracturing stitches without time limit orienting device and method - Google Patents
Extra-deep hole drilling hydraulic fracturing rock masses fracturing stitches without time limit orienting device and method Download PDFInfo
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- CN105178938B CN105178938B CN201510587547.0A CN201510587547A CN105178938B CN 105178938 B CN105178938 B CN 105178938B CN 201510587547 A CN201510587547 A CN 201510587547A CN 105178938 B CN105178938 B CN 105178938B
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Abstract
The present invention relates to a kind of extra-deep hole drilling hydraulic fracturing rock masses fracturing to stitch without time limit orienting device,Including bearing compass,Balancing gate pit,Piston,Load transmission shaft,Limiting plate,Supporting rod,It is fixed on the support plate of supporting rod bottom,It is fixed on the crossbeam of load transmission shaft bottom surface,The first spring being sleeved on supporting rod,It is fixed on the compass positioning plate at support plate top surface edge,It is fixed on crossbeam bottom and thimble corresponding with compass positioning plate,The compass box of bearing compass is fixedly connected with the middle part of support plate top surface,Compass positioning plate connects the other end of lever,The top of balancing gate pit is equipped with limbers,The sidewall bottom of balancing gate pit is equipped with exhausting-gas hole,The middle part of limiting plate is equipped with through hole,The bottom surface of limiting plate is further fixed on spacing collar corresponding with through hole,Load transmission shaft passes through through hole and spacing collar,One end connection support plate of first spring,The other end connecting cross beam of first spring.The present invention can make full use of the pressure in hydraulic fracturing equipment, from drilling hole depth and the limitation of time.
Description
Technical field
The invention belongs to rock mechanics experiment technical field, more particularly to a kind of extra-deep hole drilling hydraulic fracturing rock masses fracturing
Stitch without time limit orienting device and method.
Background technology
Hydraulic fracturing detecting earth stress is that one kind causes rock masses fracturing by hydraulic pressure, produces rock masses fracturing seam, obtains water
Pressure parameter and broken fracture orientation, the method for thus obtaining initial field stress value and orientation.Rock masses fracturing therein stitches orientation
Obtained by hydraulic fracturing detecting earth stress orienting device, which determines maximum horizontal principal stress orientation.So drilling
Hydraulic fracturing detecting earth stress orienting device, is the important equipment in drilling hydraulic fracturing detecting earth stress.At present, it is traditional
Drilling hydraulic fracturing detecting earth stress orienting device mainly using clinograph with drilling camera technique, the technology tool
There is the limitation limited by drilling hole depth (hole depth is no more than 500m) and timer setting time when small (about 2).China west at present
Portion's engineering (such as water conservancy and hydropower, traffic, mine) faces buried, ultra-deep and buries underground chamber Construction Problems, such as silk screen two level water power
The usual buried depth in buried underground stand in 1000~2000m, maximum buried depth reaches 2525m, the hole line layout design of deep and long tunnels and encloses
Concerning the success or failure of engineering construction, wherein initial field stress is hole line layout design and the key of country rock security control for rock security control
Factor.For buried or super deep-buried underground engineering, initial field stress need to use drilling hydraulic fracturing test, to extra-deep hole drilling
For (super 500m), traditional orienting device is no longer applicable in because can not accurately be completed rock masses fracturing seam positioning by time restriction.Cause
This, in order to truly measure the crustal stress orientation at extra-deep hole drilling position, it is necessary to research and develop a kind of extra-deep hole drilling hydraulic fracturing rock
Body rupture seam without time limit orienting device and method.
The content of the invention
It is an object of the invention to provide a kind of extra-deep hole drilling hydraulic fracturing rock masses fracturing to stitch without time limit orienting device, should
Device can make full use of the pressure in hydraulic fracturing equipment (stamp device), from drilling hole depth and the limitation of time.Treat hydraulic pressure
Behind fracturing method equipment (stamp device) decentralization to designated position, you can carry out pressurization orientation.Its technical advantage is to break through traditional rock mass
The limitation of rupture seam orienting device, from drilling hole depth and the limitation of time, makes full use of hydraulic fracturing equipment (stamp device)
In pressure carry out brokenly Fracture orientation, can ensure the orientation of Accurate Determining deep engineering initial field stress.
A kind of in order to solve the above technical problems, extra-deep hole drilling hydraulic fracturing rock masses fracturing seam without time limit disclosed by the invention
Orienting device, it includes bearing compass, and the bearing compass includes compass box, the compass vertical shaft being arranged in compass box, peace
Compass on compass vertical shaft, the levers support part being arranged in compass box, the lever being arranged on levers support part,
One end of the lever can position compass vertical shaft, it further includes balancing gate pit, is arranged in balancing gate pit and matched with balancing gate pit
Piston, be fixed on the load transmission shaft of piston bottom Middle face, the limiting plate for being fixed on balancing gate pit bottom, top are fixed on limiting plate
On supporting rod, be fixed on the support plate of supporting rod bottom, be fixed on load transmission shaft bottom surface crossbeam, be sleeved on supporting rod
First spring, the compass positioning plate for being fixed on support plate top surface edge, be fixed on crossbeam bottom and corresponding with compass positioning plate
Thimble, wherein, the compass box of bearing compass is fixedly connected with the middle part of the support plate top surface, the compass positioning plate connects the thick stick
The other end of bar, the top of the balancing gate pit are equipped with limbers, and the sidewall bottom of balancing gate pit is equipped with exhausting-gas hole, the limiting plate
Middle part is equipped with through hole, and the bottom surface of limiting plate is further fixed on spacing collar corresponding with through hole, and the load transmission shaft passes through through hole
And spacing collar, one end connection support plate of first spring, the other end connecting cross beam of the first spring；The load transmission
Axis is equipped with locating slot, and the spacing collar is equipped with fastening screw mounting hole, passes through second in the fastening screw mounting hole
Spring is provided with the fastening screw that can coordinate with locating slot.
One kind is oriented test side using above-mentioned extra-deep hole drilling hydraulic fracturing rock masses fracturing seam without time limit orienting device
Method, it includes the following steps：
Step 1：Hydraulic fracturing stamp device is connected with the balancing gate pit of the device, hydraulic pressure acts on piston by limbers
On, so as to promote load transmission shaft to move downward；
Step 2：Air when load transmission shaft moves downward below transmission shaft is vented by exhausting-gas hole, meanwhile, load passes
Moving axis is contacted with sealing ring to keep the pressure in balancing gate pit；
Step 3：Load transmission shaft moves downward, and when piston reaches limiting plate, fastening screw is inserted into using the effect of spring
In locating slot, meanwhile, contacted with the thimble of crossbeam connection with compass positioning plate so that determined by what supporting rod and support plate were fixed
To compass pointer also with fixation, then measure the broken fractuer direction of hydraulic fracturing detecting earth stress.
The present invention is filled using the pressure P of stamp device during the hydraulic fracturing that drills with the increase of P until reaching orientation
Put load transmission shaft movement critical pressure P0, promote load transmission shaft to move downward, when load moves to limiting plate, positioning is inserted
In pin insertion locating slot, the accurate orientation of compass is realized.
P≥P0
Wherein：P is the pressure of stamp device；
P0Critical pressure is moved for orienting device load transmission shaft；
K is the coefficient of elasticity of the first spring；
X is orienting device load transmission shaft move distance；
π is pi；
D1For orienting device load transmission shaft piston diameter.
The present invention utilizes the pressure of stamp device during the hydraulic fracturing that drills, and the standard of compass is realized by load transmission shaft
When, accurate orientation.Foundation is provided for tunnel or underground chamber design.
The present invention breaches the limitation of traditional rock masses fracturing seam orienting device and test method, (super from drilling hole depth
500m) with the limitation of time, the pressure in hydraulic fracturing equipment (stamp device) is made full use of to carry out brokenly Fracture orientation, Neng Goubao
Demonstrate,prove the orientation of Accurate Determining deep engineering initial field stress.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is the connection relationship diagram of bearing compass and compass positioning plate in the present invention；
Wherein, 1-balancing gate pit, 2-load transmission shaft, 3-exhausting-gas hole, 4-sealing ring, 5-limiting plate, 6-supporting rod,
7-locating slot, 8-fastening screw, 9-crossbeam, 10-protective case, the 11-the first spring, 12-bearing compass, 13-thimble,
14-support plate, 15-compass positioning plate, 16-piston, 17-through hole, 18-spacing collar, 19-limbers, 20-positioning
Latch mounting hole, 21-crossbeam fixing piece, 22-second spring, 23-compass, 24-compass box, 25-compass vertical shaft,
26-lever, 27-levers support part.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail：
The extra-deep hole drilling hydraulic fracturing rock masses fracturing seam without time limit orienting device of the present invention, as described in Fig. 1 and 2, it is wrapped
Bearing compass 12 is included, the bearing compass 12 includes compass box 24, the compass vertical shaft 25 being arranged in compass box 24, is installed on
Compass 23 on compass vertical shaft 25, the levers support part 27 being arranged in compass box 24, be arranged on levers support part 27
Lever 26, one end of the lever 26 can position compass vertical shaft 25, it further includes balancing gate pit 1, is arranged in balancing gate pit 1 simultaneously
Piston 16 matched with balancing gate pit 1, the load transmission shaft 2 being fixed in the middle part of 16 bottom surface of piston, the limit for being fixed on 1 bottom of balancing gate pit
Supporting rod 6 that position plate 5, top are fixed on limiting plate 5, be fixed on the support plate 14 of 6 bottom of supporting rod, be fixed on load transmission
The crossbeam 9 (being fixed by crossbeam fixing piece 21) of 2 bottom surface of axis, the first spring 11 being sleeved on supporting rod 6, be fixed on support plate 14
The compass positioning plate 15 of top edge, be fixed on 9 bottom of crossbeam and thimble 13 corresponding with compass positioning plate 15, wherein, it is described
The compass box 24 of bearing compass 12 is fixedly connected with the middle part of 14 top surface of support plate, the compass positioning plate 15 connects the lever 26
The other end, the top of the balancing gate pit 1 are equipped with limbers 19, and the sidewall bottom of balancing gate pit 1 is equipped with exhausting-gas hole 3, the limiting plate 5
Middle part be equipped with through hole 17, the bottom surface of limiting plate 5 is further fixed on spacing collar 18 corresponding with through hole 17, the load transmission shaft
2 pass through through hole 17 and spacing collar 18, one end connection support plate 14 of first spring 11, and the other end of the first spring 11 connects
Connect crossbeam 9；The load transmission shaft 2 is equipped with locating slot 7, and the spacing collar 18 is equipped with fastening screw mounting hole 20, institute
State in fastening screw mounting hole 20 and the fastening screw 8 that can coordinate with locating slot 7 is provided with by second spring 22.
In above-mentioned technical proposal, 1 madial wall of balancing gate pit of the top of exhausting-gas hole 3 is equipped with sealing ring 4.
In above-mentioned technical proposal, sealing ring 4 also is provided with the madial wall of the spacing collar 18.
In above-mentioned technical proposal, the limbers 19, load transmission shaft 2 and bearing compass 12 are to be coaxially disposed.
In above-mentioned technical proposal, the bottom of the balancing gate pit 1 is cased with protective case 10.The protective case 10 covers support plate
14th, supporting rod 6 and spacing collar 18.
In above-mentioned technical proposal, balancing gate pit 1 and piston 16 coordinate with hydraulic fracturing stamp device, form loading unit；Lotus
Carry transmission shaft 2 and crossbeam 9 forms transmission system；Limiting plate 5, spacing collar 18, locating slot 7 form position-limiting unit, thimble 13, sieve
Disk positioning plate 15 and compass 12 form directed element.
The present invention solves the loading problem in orientation process by coordinating with the stamp device in hydraulic fracturing equipment；
By the collective effect of limiting plate and fastening screw, solves the displacement stroke of load transmission shaft；Pass through load transmission shaft, crossbeam
With the mutual cooperation of thimble, solves the orientation problem of compass.So as to measure the orientation of hydraulic fracturing rupture seam.For tunnel
Road or underground chamber design provide foundation.
One kind is oriented test side using above-mentioned extra-deep hole drilling hydraulic fracturing rock masses fracturing seam without time limit orienting device
Method, it includes the following steps：
Step 1：Hydraulic fracturing stamp device is connected with the balancing gate pit 1 of the device, hydraulic pressure is acted on by limbers 19
On piston 16, so as to promote load transmission shaft 2 to move downward；
Step 2：Air when load transmission shaft 2 moves downward below transmission shaft is vented by exhausting-gas hole 3, meanwhile, load
Transmission shaft 2 is contacted with sealing ring 4 to keep the pressure in balancing gate pit 1；
Step 3：Load transmission shaft 2 moves downward, and when piston 16 reaches limiting plate 5, fastening screw 8 utilizes the effect of spring
It is inserted into locating slot 7, meanwhile, the thimble 13 connected with crossbeam 9 is contacted with compass positioning plate 15 so that passes through supporting rod 6 and branch
The pointer for the bearing compass 12 that fagging 14 is fixed also with fixation (compass positioning plate 15 positions compass vertical shaft 25 by lever 26,
Realize the fixation of compass needle (compass 23)), then measure hydraulic fracturing detecting earth stress broken fractuer direction；
Step 4：After test, fastening screw 8 is pulled, load transmission shaft 2 is multiple upwards under the action of the first spring 11
Position, the pointer of bearing compass 12 also just loose, and then carry out next test (by being broken on bearing compass pointer and stamp device
Arc length between the relative position in crack, by the relative angle of arc length calculating between the two between them, is calculated
Angle is exactly the corresponding direction of the rupture seam of hydraulic fracturing detecting earth stress, so as to break fractuer direction with regard to Accurate Determining).
The specific method of the broken fractuer direction of measure hydraulic fracturing detecting earth stress is in the step 3：Pass through slide calliper rule
Measurement obtains rupturing the arc length l between the relative position of seam on 12 pointer of bearing compass and stamp device, passes through above-mentioned arc length l, root
The direction α corresponding to the rupture seam of hydraulic fracturing detecting earth stress can be calculated according to equation below 2
Wherein, l is the arc length between the relative position that seam is ruptured on 12 pointer of bearing compass and stamp device, and α causes for hydraulic pressure
The corresponding direction of the rupture seam of method detecting earth stress is split, D is bore diameter, and π is pi.
The present invention can make full use of the pressure in hydraulic fracturing equipment (stamp device), from drilling hole depth and the limit of time
System.After hydraulic fracturing equipment (stamp device) decentralization to designated position, you can carry out pressurization orientation.So that can Accurate Determining
The broken fractuer direction of hydraulic fracturing detecting earth stress.
The content that this specification is not described in detail belongs to the prior art known to professional and technical personnel in the field.
Claims (8)
1. a kind of extra-deep hole drilling hydraulic fracturing rock masses fracturing stitches without time limit orienting device, it includes bearing compass (12), described
Bearing compass (12) includes compass box (24), the compass vertical shaft (25) being arranged in compass box (24), is stood installed in compass
Compass (23) on axis (25), the levers support part (27) being arranged in compass box (24), be arranged on levers support part (27)
On lever (26), one end of the lever (26) can position compass vertical shaft (25), it is characterised in that：It further includes balancing gate pit
(1), be arranged in balancing gate pit (1) and with balancing gate pit (1) matched piston (16), the load being fixed in the middle part of piston (16) bottom surface
Transmission shaft (2), the limiting plate (5) for being fixed on balancing gate pit (1) bottom, top are fixed on supporting rod (6) on limiting plate (5), solid
The support plate (14) of supporting rod (6) bottom is scheduled on, the crossbeam (9) of load transmission shaft (2) bottom surface is fixed on, is sleeved on supporting rod (6)
On the first spring (11), be fixed on the compass positioning plate (15) of support plate (14) top edge, be fixed on crossbeam (9) bottom simultaneously
Thimble (13) corresponding with compass positioning plate (15), wherein, it is fixedly connected with bearing compass in the middle part of support plate (14) top surface
(12) compass box (24), the compass positioning plate (15) connects the other end of the lever (26), the top of the balancing gate pit (1)
Portion is equipped with limbers (19), and the sidewall bottom of balancing gate pit (1) is equipped with exhausting-gas hole (3), and the middle part of the limiting plate (5) is equipped with through hole
(17), the bottom surface of limiting plate (5) is further fixed on spacing collar (18) corresponding with through hole (17), and the load transmission shaft (2) is worn
Through hole (17) and spacing collar (18) are crossed, one end of first spring (11) connects support plate (14), the first spring (11)
Other end connecting cross beam (9)；The load transmission shaft (2) is equipped with locating slot (7), and the spacing collar (18) is equipped with positioning
Latch mounting hole (20), the fastening screw mounting hole (20) is interior to be provided with by second spring (22) and can matched somebody with somebody with locating slot (7)
The fastening screw (8) of conjunction.
2. extra-deep hole drilling hydraulic fracturing rock masses fracturing according to claim 1 stitches without time limit orienting device, its feature exists
In：Balancing gate pit (1) madial wall above the exhausting-gas hole (3) is equipped with sealing ring (4).
3. extra-deep hole drilling hydraulic fracturing rock masses fracturing according to claim 1 stitches without time limit orienting device, its feature exists
In：Sealing ring (4) also is provided with the madial wall of the spacing collar (18).
4. extra-deep hole drilling hydraulic fracturing rock masses fracturing according to claim 1 stitches without time limit orienting device, its feature exists
In：The limbers (19), load transmission shaft (2) and bearing compass (12) are to be coaxially disposed.
5. extra-deep hole drilling hydraulic fracturing rock masses fracturing according to claim 1 stitches without time limit orienting device, its feature exists
In：The bottom of the balancing gate pit (1) is cased with protective case (10).
6. one kind utilizes extra-deep hole drilling hydraulic fracturing rock masses fracturing seam without time limit orienting device described in claim 1 to be oriented
Test method, it is characterised in that it includes the following steps：
Step 1：Hydraulic fracturing stamp device is connected with the balancing gate pit (1), hydraulic pressure acts on piston by limbers (19)
(16) on, so as to promote load transmission shaft (2) to move downward；
Step 2：The air of load transmission shaft (2) below is vented by exhausting-gas hole (3) when load transmission shaft (2) moves downward, together
When, load transmission shaft (2) is contacted with sealing ring (4) to keep the pressure in balancing gate pit (1)；
Step 3：Load transmission shaft (2) moves downward, and when piston (16) reaches limiting plate (5), fastening screw (8) utilizes the second bullet
In the effect insertion locating slot (7) of spring (22), meanwhile, contacted with the thimble (13) of crossbeam (9) connection with compass positioning plate (15),
So that then hydraulic pressure is measured also with fixation by the compass of the fixed bearing compass (12) of supporting rod (6) and support plate (14)
The broken fractuer direction of fracturing method detecting earth stress.
7. test method is oriented according to claim 6, it is characterised in that：Step 4 is further included after the step 3：Test knot
Shu Hou, pulls fastening screw (8), and load transmission shaft (2) resets upwards under the action of the first spring (11), bearing compass (12)
Compass also just loose, and then carry out next test.
8. test method is oriented according to claim 6, it is characterised in that：Hydraulic fracturing is measured in the step 3 should
The specific method of broken fractuer direction of power test is：Obtained by kind of calliper on the compass and stamp device of bearing compass (12)
The arc length l between the relative position of seam is ruptured, by above-mentioned arc length l, with can calculating hydraulic fracturing should according to equation below 2
Direction α corresponding to the rupture seam of power test
<mrow>
<mi>&alpha;</mi>
<mo>=</mo>
<mfrac>
<mi>l</mi>
<mrow>
<mi>&pi;</mi>
<mi>D</mi>
</mrow>
</mfrac>
<mo>-</mo>
<mo>-</mo>
<mo>-</mo>
<mrow>
<mo>(</mo>
<mn>2</mn>
<mo>)</mo>
</mrow>
</mrow>
Wherein, l is the arc length between the relative position that seam is ruptured on the compass and stamp device of bearing compass (12), and α is hydraulic pressure
Direction corresponding to the rupture seam of fracturing method detecting earth stress, D is bore diameter, and π is pi.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510587547.0A CN105178938B (en) | 2015-07-28 | 2015-09-16 | Extra-deep hole drilling hydraulic fracturing rock masses fracturing stitches without time limit orienting device and method |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2015205530288 | 2015-07-28 | ||
| CN201520553028 | 2015-07-28 | ||
| CN201510587547.0A CN105178938B (en) | 2015-07-28 | 2015-09-16 | Extra-deep hole drilling hydraulic fracturing rock masses fracturing stitches without time limit orienting device and method |
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| Publication Number | Publication Date |
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| CN105178938A CN105178938A (en) | 2015-12-23 |
| CN105178938B true CN105178938B (en) | 2018-05-01 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109025980B (en) * | 2018-06-08 | 2020-06-23 | 中国科学院武汉岩土力学研究所 | In-drill hole orientation device for hydrofracturing method ground stress test |
| CN109030225A (en) * | 2018-06-29 | 2018-12-18 | 中国电建集团中南勘测设计研究院有限公司 | A kind of equipment for observing Rockmass fractures in the test of hydraulic fracturing crustal stress in real time |
| CN112610198B (en) * | 2020-12-17 | 2022-02-25 | 中国矿业大学 | Coal seam mechanical fracturing and hydraulic drive cooperative targeting fracturing device and method |
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| SU1652519A1 (en) * | 1989-02-20 | 1991-05-30 | Центральная геофизическая экспедиция | Method of formation hydrofracturing |
| CN2093405U (en) * | 1991-04-22 | 1992-01-15 | 马丽燕 | Hydraulic fracturing crustal stress measuring pipe column |
| US6266247B1 (en) * | 1998-08-24 | 2001-07-24 | Racal Instruments Inc. | Power supply connection system |
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| CN201417146Y (en) * | 2009-06-05 | 2010-03-03 | 天地科技股份有限公司 | Digital direction finder |
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| CN204984396U (en) * | 2015-09-16 | 2016-01-20 | 长江水利委员会长江科学院 | Mohole hole hydrofracturing method rock mass breaks and stitches no time limit orienting device |
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2015
- 2015-09-16 CN CN201510587547.0A patent/CN105178938B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1652519A1 (en) * | 1989-02-20 | 1991-05-30 | Центральная геофизическая экспедиция | Method of formation hydrofracturing |
| CN2093405U (en) * | 1991-04-22 | 1992-01-15 | 马丽燕 | Hydraulic fracturing crustal stress measuring pipe column |
| US6266247B1 (en) * | 1998-08-24 | 2001-07-24 | Racal Instruments Inc. | Power supply connection system |
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| CN103472498A (en) * | 2013-09-25 | 2013-12-25 | 中国地震局地壳应力研究所 | Novel impression testing method for measuring hydrofracturing in-situ stress |
| CN204984396U (en) * | 2015-09-16 | 2016-01-20 | 长江水利委员会长江科学院 | Mohole hole hydrofracturing method rock mass breaks and stitches no time limit orienting device |
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