CN204984396U - Mohole hole hydrofracturing method rock mass breaks and stitches no time limit orienting device - Google Patents
Mohole hole hydrofracturing method rock mass breaks and stitches no time limit orienting device Download PDFInfo
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- CN204984396U CN204984396U CN201520719505.3U CN201520719505U CN204984396U CN 204984396 U CN204984396 U CN 204984396U CN 201520719505 U CN201520719505 U CN 201520719505U CN 204984396 U CN204984396 U CN 204984396U
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- compass
- transmission shaft
- hole
- fixed
- balancing gate
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Abstract
The utility model relates to a mohole hole hydrofracturing method rock mass breaks and stitches no time limit orienting device, including the bearing compass, the pressure chamber, a piston, the load transmission shaft, the limiting plate, the bracing piece, fix the backup pad in the bracing piece bottom, fix the crossbeam in load transmission shaft bottom surface, the first spring of cover on the bracing piece, fix the compass locating plate at backup pad top surface edge, fix at crossbeam bottom and the thimble that corresponds with the compass locating plate, the compass box of backup pad top surface middle part fixed connection bearing compass, compass locating plate fixed lever's the other end, the top of pressure chamber is equipped with the limbers, the lateral wall bottom of pressure chamber is equipped with the exhaust hole, the middle part of limiting plate is equipped with the through -hole, the bottom surface of limiting plate still is fixed with the spacing sleeve who corresponds with the through -hole, the load transmission shaft passes through -hole and spacing sleeve, the one end joint support board of first spring, the crossbeam is connected to the other end of first spring. The utility model discloses do not receive the restriction of drilling bore depth and time during the use.
Description
Technical field
The utility model belongs to rock mechanics experiment technical field, and particularly a kind of extra-deep hole drilling hydraulic fracturing rock masses fracturing seam is without time limit bearing unit.
Background technology
Hydraulic fracturing detecting earth stress is that one causes rock masses fracturing by hydraulic pressure, produces rock masses fracturing seam, obtains water pressure parameter and broken fracture orientation, obtain the method in initial field stress value and orientation thus.Rock masses fracturing seam orientation is wherein obtained by hydraulic fracturing detecting earth stress bearing unit, and this orientation determines maximum horizontal principal stress orientation.So boring hydraulic fracturing detecting earth stress bearing unit, it is the visual plant in boring hydraulic fracturing detecting earth stress.At present, traditional boring hydraulic fracturing detecting earth stress bearing unit mainly adopts clinograph and boring camera technique, and this technology has the limitation limited by boring hole depth (hole depth is no more than 500m) and timer setting-up time (about 2 hours).The western engineering (as water conservancy and hydropower, traffic, mine etc.) of current China faces buried, ultra-deep and buries underground chamber Construction Problems, the usual buried depth in underground as buried in Jinping hydropower station is at 1000 ~ 2000m, maximum buried depth reaches 2525m, the hole line layout design of deep and long tunnels and country rock security control are concerning the success or failure of engineering construction, and wherein initial field stress is the key factor of hole line layout design and country rock security control.For buried or super deep-buried underground engineering, initial field stress need adopt the test of boring hydraulic fracturing, and concerning extra-deep hole drilling (super 500m), traditional bearing unit is because accurately completing rock masses fracturing seam location by time restriction, no longer applicable.Therefore, in order to measure the geostatic stress orientation at extra-deep hole drilling position truly, be necessary to research and develop a kind of extra-deep hole drilling hydraulic fracturing rock masses fracturing seam without time limit bearing unit.
Utility model content
The purpose of this utility model is to provide a kind of extra-deep hole drilling hydraulic fracturing rock masses fracturing to stitch without time limit bearing unit, and this device can make full use of the pressure in hydraulic fracturing equipment (die device), not by boring hole depth and the restriction of time.Transfer to assigned address until hydraulic fracturing equipment (die device), pressurization can be carried out directed.Its technical advantage breaks through the limitation of traditional rock masses fracturing seam bearing unit, not by boring hole depth and the restriction of time, the pressure made full use of in hydraulic fracturing equipment (die device) carries out brokenly Fracture orientation, can ensure the orientation of Accurate Determining deep engineering initial field stress.
For solving the problems of the technologies described above, disclosed in the utility model, a kind of extra-deep hole drilling hydraulic fracturing rock masses fracturing seam is without time limit bearing unit, it comprises bearing compass, described bearing compass comprises compass box, be arranged on the compass vertical shaft in compass box, be arranged on the compass on compass vertical shaft, be arranged on the levers support part in compass box, be arranged on the lever on levers support part, compass vertical shaft can be located in one end of described lever, it also comprises balancing gate pit, be arranged on the piston mated in balancing gate pit and with balancing gate pit, be fixed on the load power transmission shaft of piston bottom Middle face, be fixed on the limiting plate bottom balancing gate pit, top is fixed on the support bar on limiting plate, be fixed on the gripper shoe of support bar bottom, be fixed on the crossbeam of load power transmission shaft bottom surface, be enclosed within the first spring on support bar, be fixed on the compass location-plate at support plate top surface edge, be fixed on thimble bottom crossbeam and corresponding with compass location-plate, wherein, the compass box of bearing compass is fixedly connected with in the middle part of described support plate top surface, described compass location-plate connects the other end of described lever, the top of described balancing gate pit is provided with limbers, the sidewall bottom of balancing gate pit is provided with steam vent, the middle part of described limiting plate is provided with through hole, the bottom surface of limiting plate is also fixed with the spacing collar corresponding with through hole, described load power transmission shaft is through through hole and spacing collar, one end of described first spring connects gripper shoe, the other end connecting cross beam of the first spring, described load power transmission shaft is provided with locating slot, and described spacing collar is provided with fastening screw installing hole, in described fastening screw installing hole, the second spring is provided with the fastening screw that can coordinate with locating slot.
The utility model utilizes the pressure P of die device in boring hydraulic fracturing process, along with the increase of P is until reach bearing unit load power transmission shaft motion critical pressure P
0, promote load power transmission shaft and move downward, when load moves to limiting plate, fastening screw inserts in locating slot, realizes the accurate orientation of compass.
P≥P
0
Wherein: P is the pressure of die device;
P
0for bearing unit load power transmission shaft motion critical pressure;
K is the coefficient of elasticity of the first spring;
X is bearing unit load power transmission shaft move distance;
π is pi;
D
1for bearing unit load power transmission shaft piston diameter.
The utility model utilizes the pressure of die device in boring hydraulic fracturing process, realizes the punctual, accurately directed of compass by load power transmission shaft.For tunnel or underground chamber design provide foundation.
The utility model breaches the limitation of traditional rock masses fracturing seam bearing unit and method of testing, not by the restriction of boring hole depth (super 500m) with the time, the pressure made full use of in hydraulic fracturing equipment (die device) carries out brokenly Fracture orientation, can ensure the orientation of Accurate Determining deep engineering initial field stress.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the annexation schematic diagram of bearing compass and compass location-plate in the utility model;
Wherein, 1-balancing gate pit, 2-load power transmission shaft, 3-steam vent, 4-sealing ring, 5-limiting plate, 6-support bar, 7-locating slot, 8-fastening screw, 9-crossbeam, 10-protective sleeve, the 11-the first spring, 12-bearing compass, 13-thimble, 14-gripper shoe, 15-compass location-plate, 16-piston, 17-through hole, 18-spacing collar, 19-limbers, 20-fastening screw installing hole, 21-crossbeam fixture, the 22-the second spring, 23-compass, 24-compass box, 25-compass vertical shaft, 26-lever, 27-levers support part.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
Extra-deep hole drilling hydraulic fracturing rock masses fracturing seam of the present utility model is without time limit bearing unit, as as described in Fig. 1 and 2, it comprises bearing compass 12, described bearing compass 12 comprises compass box 24, be arranged on the compass vertical shaft 25 in compass box 24, be arranged on the compass 23 on compass vertical shaft 25, be arranged on the levers support part 27 in compass box 24, be arranged on the lever 26 on levers support part 27, compass vertical shaft 25 can be located in one end of described lever 26, it also comprises balancing gate pit 1, to be arranged in balancing gate pit 1 and the piston 16 mated with balancing gate pit 1, be fixed on the load power transmission shaft 2 in the middle part of piston 16 bottom surface, be fixed on the limiting plate 5 bottom balancing gate pit 1, top is fixed on the support bar 6 on limiting plate 5, be fixed on the gripper shoe 14 of support bar 6 bottom, be fixed on the crossbeam 9 (being fixed by crossbeam fixture 21) of load power transmission shaft 2 bottom surface, be enclosed within the first spring 11 on support bar 6, be fixed on the compass location-plate 15 of gripper shoe 14 top edge, be fixed on thimble 13 bottom crossbeam 9 and corresponding with compass location-plate 15, wherein, the compass box 24 of bearing compass 12 is fixedly connected with in the middle part of described gripper shoe 14 end face, described compass location-plate 15 connects the other end of described lever 26, the top of described balancing gate pit 1 is provided with limbers 19, the sidewall bottom of balancing gate pit 1 is provided with steam vent 3, the middle part of described limiting plate 5 is provided with through hole 17, the bottom surface of limiting plate 5 is also fixed with the spacing collar 18 corresponding with through hole 17, described load power transmission shaft 2 is through through hole 17 and spacing collar 18, one end of described first spring 11 connects gripper shoe 14, the other end connecting cross beam 9 of the first spring 11, described load power transmission shaft 2 is provided with locating slot 7, and described spacing collar 18 is provided with fastening screw installing hole 20, in described fastening screw installing hole 20, second spring 22 is provided with the fastening screw 8 that can coordinate with locating slot 7.
In technique scheme, balancing gate pit 1 inside wall above described steam vent 3 is provided with sealing ring 4.
In technique scheme, the inside wall of described spacing collar 18 is also provided with sealing ring 4.
In technique scheme, described limbers 19, load power transmission shaft 2 and bearing compass 12 are coaxial setting.
In technique scheme, the bottom cover of described balancing gate pit 1 has protective sleeve 10.Described protective sleeve 10 covers gripper shoe 14, support bar 6 and spacing collar 18.
In technique scheme, balancing gate pit 1 and piston 16 coordinate with hydraulic fracturing die device, form loading unit; Load power transmission shaft 2 and crossbeam 9 form transmission system; Limiting plate 5, spacing collar 18, locating slot 7 form position-limiting unit, and thimble 13, compass location-plate 15 and compass 12 form directed element.
The utility model, by coordinating with the die device in hydraulic fracturing equipment, solves the loading problem in orientation process; By the acting in conjunction of limiting plate and fastening screw, solve the displacement stroke of load power transmission shaft; By cooperatively interacting of load power transmission shaft, crossbeam and thimble, solve the orientation problem of compass.Thus can measure hydraulic fracturing break seam orientation.For tunnel or underground chamber design provide foundation.
One utilizes above-mentioned extra-deep hole drilling hydraulic fracturing rock masses fracturing seam to carry out directed method of testing without time limit bearing unit, and it comprises the steps:
Step 1: be connected with the balancing gate pit 1 of this device by hydraulic fracturing die device, hydraulic pressure is acted on piston 16 by limbers 19, thus promotion load power transmission shaft 2 moves downward;
Step 2: air when load power transmission shaft 2 moves downward below power transmission shaft is vented by steam vent 3, meanwhile, load power transmission shaft 2 contacts to keep the pressure in balancing gate pit 1 with sealing ring 4;
Step 3: load power transmission shaft 2 moves downward, when piston 16 arrives limiting plate 5, fastening screw 8 utilizes the effect of spring to insert in locating slot 7, simultaneously, the thimble 13 connected with crossbeam 9 contacts with compass location-plate 15, make by the pointer of support bar 6 and the fixing bearing compass 12 of gripper shoe 14 that also (compass location-plate 15 locates compass vertical shaft 25 by lever 26 with fixing, namely the fixing of compass needle (compass 23) is achieved), then measure the broken fractuer direction of hydraulic fracturing detecting earth stress;
Step 4: after test terminates, pull fastening screw 8, load power transmission shaft 2 upwards resets under the effect of the first spring 11, the pointer of bearing compass 12 also just looses, and then carry out the next test (arc length between the relative position stitched by bearing compass pointer and die device break, by the arc length calculating relative angle between the two between them, the angle calculated is exactly the direction of breaking corresponding to seam of hydraulic fracturing detecting earth stress, thus breaks fractuer direction with regard to Accurate Determining).
The concrete grammar measuring the broken fractuer direction of hydraulic fracturing detecting earth stress in described step 3 is: to be obtained bearing compass 12 pointer and die device break the arc length l between the relative position that stitches by kind of calliper, by above-mentioned arc length l, the direction α broken corresponding to seam of hydraulic fracturing detecting earth stress can be calculated according to following formula 2
Wherein, l is the arc length of bearing compass 12 pointer and die device breaking between the relative position that stitches, and the direction that what α was hydraulic fracturing detecting earth stress break corresponding to seam, D is bore diameter, and π is pi.
The utility model can make full use of the pressure in hydraulic fracturing equipment (die device), not by boring hole depth and the restriction of time.Transfer to assigned address until hydraulic fracturing equipment (die device), pressurization can be carried out directed.Thus get final product the broken fractuer direction of Accurate Determining hydraulic fracturing detecting earth stress.
The content that this manual is not described in detail belongs to the known prior art of professional and technical personnel in the field.
Claims (5)
1. an extra-deep hole drilling hydraulic fracturing rock masses fracturing seam is without time limit bearing unit, it comprises bearing compass (12), described bearing compass (12) comprises compass box (24), be arranged on the compass vertical shaft (25) in compass box (24), be arranged on the compass (23) on compass vertical shaft (25), be arranged on the levers support part (27) in compass box (24), be arranged on the lever (26) on levers support part (27), compass vertical shaft (25) can be located in one end of described lever (26), it is characterized in that: it also comprises balancing gate pit (1), to be arranged in balancing gate pit (1) and the piston (16) mated with balancing gate pit (1), be fixed on the load power transmission shaft (2) in the middle part of piston (16) bottom surface, be fixed on the limiting plate (5) of bottom, balancing gate pit (1), top is fixed on the support bar (6) on limiting plate (5), be fixed on the gripper shoe (14) of support bar (6) bottom, be fixed on the crossbeam (9) of load power transmission shaft (2) bottom surface, be enclosed within the first spring (11) on support bar (6), be fixed on the compass location-plate (15) of gripper shoe (14) top edge, be fixed on crossbeam (9) bottom and the thimble (13) corresponding with compass location-plate (15), wherein, the compass box (24) of bearing compass (12) is fixedly connected with in the middle part of described gripper shoe (14) end face, described compass location-plate (15) connects the other end of described lever (26), the top of described balancing gate pit (1) is provided with limbers (19), the sidewall bottom of balancing gate pit (1) is provided with steam vent (3), the middle part of described limiting plate (5) is provided with through hole (17), the bottom surface of limiting plate (5) is also fixed with the spacing collar (18) corresponding with through hole (17), described load power transmission shaft (2) is through through hole (17) and spacing collar (18), one end of described first spring (11) connects gripper shoe (14), the other end connecting cross beam (9) of the first spring (11), described load power transmission shaft (2) is provided with locating slot (7), described spacing collar (18) is provided with fastening screw installing hole (20), in described fastening screw installing hole (20), the second spring (22) is provided with the fastening screw (8) that can coordinate with locating slot (7).
2. extra-deep hole drilling hydraulic fracturing rock masses fracturing seam according to claim 1 is without time limit bearing unit, it is characterized in that: balancing gate pit (1) inside wall of described steam vent (3) top is provided with sealing ring (4).
3. extra-deep hole drilling hydraulic fracturing rock masses fracturing seam according to claim 1 is without time limit bearing unit, it is characterized in that: the inside wall of described spacing collar (18) is also provided with sealing ring (4).
4. extra-deep hole drilling hydraulic fracturing rock masses fracturing seam according to claim 1 is without time limit bearing unit, it is characterized in that: described limbers (19), load power transmission shaft (2) and bearing compass (12) are arranged for coaxial.
5. extra-deep hole drilling hydraulic fracturing rock masses fracturing seam according to claim 1 is without time limit bearing unit, it is characterized in that: the bottom cover of described balancing gate pit (1) has protective sleeve (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520719505.3U CN204984396U (en) | 2015-09-16 | 2015-09-16 | Mohole hole hydrofracturing method rock mass breaks and stitches no time limit orienting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520719505.3U CN204984396U (en) | 2015-09-16 | 2015-09-16 | Mohole hole hydrofracturing method rock mass breaks and stitches no time limit orienting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204984396U true CN204984396U (en) | 2016-01-20 |
Family
ID=55118775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520719505.3U Withdrawn - After Issue CN204984396U (en) | 2015-09-16 | 2015-09-16 | Mohole hole hydrofracturing method rock mass breaks and stitches no time limit orienting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204984396U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178938A (en) * | 2015-07-28 | 2015-12-23 | 长江水利委员会长江科学院 | Time-limit-free orienting device and method adopting super-deep drilling and hydraulic fracturing for rock cracks |
-
2015
- 2015-09-16 CN CN201520719505.3U patent/CN204984396U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178938A (en) * | 2015-07-28 | 2015-12-23 | 长江水利委员会长江科学院 | Time-limit-free orienting device and method adopting super-deep drilling and hydraulic fracturing for rock cracks |
| CN105178938B (en) * | 2015-07-28 | 2018-05-01 | 长江水利委员会长江科学院 | Extra-deep hole drilling hydraulic fracturing rock masses fracturing stitches without time limit orienting device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160120 Effective date of abandoning: 20180501 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20160120 Effective date of abandoning: 20180501 |