CN208564540U - The hydraulic fracturing detecting earth stress device of isometrical design - Google Patents
The hydraulic fracturing detecting earth stress device of isometrical design Download PDFInfo
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- CN208564540U CN208564540U CN201820888962.9U CN201820888962U CN208564540U CN 208564540 U CN208564540 U CN 208564540U CN 201820888962 U CN201820888962 U CN 201820888962U CN 208564540 U CN208564540 U CN 208564540U
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- fracturing
- valve rod
- valve seat
- inner cavity
- sealing ring
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Abstract
The utility model discloses the hydraulic fracturing detecting earth stress devices of isometrical design, include sliding valve rod, valve seat, upper and lower packer, fracturing floral tube and center-pole, sliding valve rod, which is threaded through in valve seat and is stretched out by upper end, is connected in drilling rod lower end, valve rod water hole is set in sliding valve rod to be connected to drill pipe bore, center-pole is connected in valve seat lower end, the upper and lower packer of housing and fracturing floral tube, valve seat, upper and lower packer and fracturing floral tube outer diameter are equal；The L-type via hole of connection valve base cavity and upper packer inner cavity is equipped in valve seat, fracturing floral tube side is equipped with the packing intercommunicating pore of connection upper and lower two packer inner cavity, the fracturing floral tube other side is equipped with the fracturing water hole of connection center-pole inner hole, it slides valve rod and is equipped with upper and lower two stations in valve base cavity, realize independent circuit.The utility model has many advantages, such as good appearance, is not easy bending deformation and is not easy in the borehole stuck.
Description
Technical field
The utility model relates to hydraulic fracturing Original strata stress field the field of test technology, particularly relate to a kind of isometrical
The boring hydraulic fracturing Original strata stress test device of design.
Background technique
In hydraulic fracturing Original strata stress test process, needs to pressurize to concatenated upper lower packet first, make to seal up and down
Fracturing section is closed in formation between after device expansion, then again to closing fracturing section pressurization, makes the rock mass formation tensioning that drills
Crack.Therefore, the device for carrying out detecting earth stress in the borehole is required to that waterway conversion valve is arranged at an upper portion thereof, is just able to achieve only
Give the purpose of above-mentioned two pressure circuit pressurization respectively using drilling rod water route.
In traditional hydraulic fracturing detecting earth stress device, upper lower packet is connected with reality by using thin high-pressure rubber hose
Pressure communication (" the hydraulic fracturing stress test device " of such as Patent No. 201620559873.0) between existing the two, works as test
During device is transferred or is lifted in the borehole, thin high-pressure rubber hose due to borehole wall rock mass friction, scratch, hold very much
The worn out, damaged of thin high-pressure rubber hose is easily led to, leak leakage pressure and test crash are caused.
Connection in addition, the rock mass fracturing section of existing hydraulic fracturing detecting earth stress device, i.e., among upper and lower packer
Unit is thinner, and outer diameter is significantly less than outer diameter (" the single loop water of such as Patent No. 201310424571.3 of upper and lower packer
Press fracturing In-situ stress measurements system ", " the hydraulic fracturing stress test device " of Patent No. 201620559873.0 and specially
" dry hole relief valve and the hydrofracturing detecting earth stress device " that benefit number is 201710621308.1).Above-mentioned thinner fracturing section
There are larger gaps between connection unit and borehole wall, and in the incomplete situation of rock mass that drills, hole wall rock mass fall off generation
Clast, sillar can be deposited in above-mentioned gap, caused test equipment stuck and can not be retracted to ground, to cause test equipment
Fall hole accident.
Utility model content
For above-mentioned technical problem existing for current hydraulic fracturing detecting earth stress equipment, the purpose of this utility model exists
In provide it is a kind of be connected to drilling rod lower end, the hydraulic fracturing of the outer diameters design such as hydraulic fracturing geostress survey it is former
Ground stress apparatus, realization prevents the worn out caused leak leakage pressure of thin high-pressure rubber hose and test crash, and eliminates fracturing section and connect
The purpose of the stuck caused stuck pendant hole accident of test equipment at order member.
To achieve the above object, the technical solution that the utility model is taken are as follows: the hydraulic fracturing crustal stress of isometrical design
Test device is worn comprising sliding valve rod, valve seat, upper packer, fracturing floral tube, center-pole and lower packet, the sliding valve rod
It is located in the valve seat and is stretched out by valve seat upper end and be connected to drilling rod lower end, offer valve rod water hole in the sliding valve rod,
The valve rod water hole is connected to drill pipe bore, and the center-pole is connected to the valve seat lower end, the center-pole inner hole with it is described
Valve base cavity connection, the upper packer and lower packet are sequentially sleeved on the center-pole, in the upper packer under
The fracturing floral tube being set on center-pole, the fracturing floral tube and the valve seat, upper packer are additionally provided between packer
And lower packet outer diameter is equal and is in turn connected to form the equal entirety of outer diameter from top to bottom；
Be also provided with L-type via hole in the valve seat, the L-type via hole respectively with the valve base cavity and upper packing
The connection of device inner cavity is also provided with packing intercommunicating pore in fracturing floral tube side, the packing intercommunicating pore respectively with the upper envelope
It is connected to every device inner cavity and lower packet inner cavity, fracturing water hole is also provided in the fracturing floral tube other side, in the center-pole
Middle part is also provided with water hole between bar, and water hole is connected to fracturing floral tube inner cavity between the fracturing water hole and bar, the sliding
Valve rod is intracavitary in the valve seat to be equipped with upper and lower two stations；
When the sliding valve rod is located at upper station, the valve rod water hole for sliding valve rod passes through L-type via hole and upper packer
Inner cavity connection, upper packer inner cavity by insulate intercommunicating pore be connected to lower packet inner cavity；
When the sliding valve rod is located at lower station, the valve rod water hole for sliding valve rod is connected by valve insertion and center-pole inner hole
Logical, water hole is connected to fracturing floral tube inner cavity between center-pole inner hole passes through bar, and fracturing floral tube inner cavity is connected to fracturing water hole.
In above-mentioned technical proposal, it is additionally provided with the first sealing ring group and the second sealing ring group in the valve seat, described first
Sealing ring group and the second sealing ring component are located at the both ends that the L-type via hole is connected to position with valve base cavity；Described first is close
Seal group and the second sealing ring group are made of twice 〇 type sealing rubber ring.
In above-mentioned technical proposal, third sealing ring group and the 4th sealing ring group are additionally provided in the fracturing floral tube, it is described
Third sealing ring group and the 4th sealing ring group set up the both ends that water hole between the bar is connected to position with fracturing water hole separately；The third is close
Seal group and the 4th sealing ring group are made of twice 〇 type sealing rubber ring.
In above-mentioned technical proposal, the sliding valve rod is the variable diameter valve rod that top is thick, lower part is thin.
In above-mentioned technical proposal, the sliding valve rod, valve seat, fracturing floral tube and center-pole use stainless steel material system
At.
Compared with prior art, the utility model has the advantages that:
(1) with background technique in Patent No. 201620559873.0 and 201710621308.1,
201310424571.3 patented technology etc. is compared, the hydraulic fracturing detecting earth stress dress for the isometrical design that the utility model provides
It sets, the fracturing floral tube diameter for connecting upper and lower two packer is relatively thick and consistent with upper and lower packer outer diameter, in use, to cause
Split the gap very little between floral tube and borehole wall, and and upper and lower packer it is identical as the gap between borehole wall, therefore not more
Complementary space receiving falls block, landwaste etc., to be effectively prevented, test equipment fracturing section outer diameter is thin, Yi Rongna falls block, landwaste etc.
Cause test equipment stuck and surface state can not be retracted to；
(2) the hydraulic fracturing detecting earth stress device of the isometrical design provided due to the utility model connects upper and lower two packing
The fracturing floral tube diameter of device is relatively thick and consistent with upper and lower two packers outer diameter, therefore has sufficient space to pass through in fracturing floral tube
Intercommunicating pore is set, realizes the pressure communication between upper and lower two packer, no longer needs to utilize thin high-pressure rubber hose connection upper and lower two
Two packers, to completely eliminate the worn out caused leak leakage pressure of thin high-pressure rubber hose and test crash situation；
(3) since the overall diameter of the components such as valve seat, upper packer, fracturing floral tube and lower packet is equal, and successively connect
It connects to form the equal entirety of outer diameter, without obvious undergauge position, so the overall stiffness of equipment is big, bending resistance is strong, be not susceptible to
Bending deformation；Simultaneously as each component overall diameter is equal, instrument is more beautiful on the whole.
Detailed description of the invention
Fig. 1 is the structural schematic diagram slided when valve rod is located at station on the inner cavity of valve seat in the utility model；
Fig. 2 is the concrete application implementation example figure slided when valve rod is located at station on the inner cavity of valve seat in Fig. 1；
Fig. 3 is the structural schematic diagram slided when valve rod is located at station under the inner cavity of valve seat in the utility model；
Fig. 4 is the concrete application embodiment slided when valve rod is located at station under the inner cavity of valve seat in Fig. 3；
In figure: 1, sliding valve rod；2, valve rod water hole；3, valve seat；4, upper packer；5, fracturing floral tube；6, center-pole；7, under
Packer；8, fracturing water hole；9, water hole between bar；10, the first sealing ring group；11, the second sealing ring group；12, third sealing ring group；
13, the 4th sealing ring group；14, intercommunicating pore is insulated；15, L-type via hole.
Specific embodiment
To be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, below
In conjunction with the drawings and specific embodiments, it is further described how the utility model is implemented.
As shown in Figures 1 to 4, the hydraulic fracturing detecting earth stress device of isometrical design provided by the utility model, packet
The valve rod 1 containing sliding, valve seat 3, upper packer 4, fracturing floral tube 5, center-pole 6 and lower packet 7, sliding valve rod 1 are threaded through valve seat 3
It is interior and by 3 upper end of valve seat stretch out be connected to drilling rod (not shown) lower end, sliding valve rod 1 in offer valve rod water hole 2, valve
Column water hole 2 is connected to 16 inner hole of drilling rod, and center-pole 6 is connected to 3 lower end of valve seat, and 6 inner hole of center-pole is connected to 3 inner cavity of valve seat, on
Packer 4, fracturing floral tube 5 and lower packet 7 are sequentially sleeved at from top to bottom on center-pole 6, valve seat 3, upper packer 4, fracturing
Floral tube 5 and 7 outer diameter of lower packet are equal and be in turn connected to form the equal entirety of outer diameter from top to bottom；
As depicted in figs. 1 and 2, L-type via hole 15 is also provided in valve seat 3, L-type via hole 15 is respectively and in valve seat 3
Chamber and 4 inner cavity of upper packer connection, 5 side of fracturing floral tube be also provided with packing intercommunicating pore 14, packing intercommunicating pore 14 respectively with
4 inner cavity of upper packer and the connection of 7 inner cavity of lower packet, are also provided with fracturing water hole 8 in 5 other side of fracturing floral tube, in center-pole 6
Middle part is also provided with water hole 9 between bar, and water hole 9 is connected to 5 inner cavity of fracturing floral tube between fracturing water hole 8 and bar, slides valve rod 1 in valve
Seat 3 it is interior it is intracavitary be equipped with upper and lower two stations；
As depicted in figs. 1 and 2, when sliding valve rod 1 is located at upper station, the valve rod water hole 2 of sliding valve rod 1 is led by L-type
Through-hole 15 is connected to the inner cavity of upper packer 4, and 4 inner cavity of upper packer is connected to by insulating intercommunicating pore 14 with 7 inner cavity of lower packet；
As shown in Figure 3 and Figure 4, when sliding valve rod 1 is located at lower station, the valve rod water hole 2 of sliding valve rod 1 passes through valve seat 3
Inner cavity is connected to 6 inner hole of center-pole, and water hole 9 is connected to 5 inner cavity of fracturing floral tube between 6 inner hole of center-pole passes through bar, in fracturing floral tube 5
Chamber is connected to fracturing water hole 8.
As shown in Figure 2 and Figure 4, the first sealing ring group 10 and the second sealing ring group 11, the first sealing are additionally provided in valve seat 3
Circle group 10 and the second sealing ring group 11 set up the both ends for being connected to position with 3 inner cavity of valve seat in L-type via hole 15, the first sealing ring group separately
10 and second sealing ring group 11 be made of twice 〇 type sealing rubber ring.
As shown in Figure 2 and Figure 4, third sealing ring group 12 and the 4th sealing ring group 13, third are additionally provided in fracturing floral tube 5
Sealing ring group 12 and the 4th sealing ring group 13 set up the both ends that water hole 9 between bar is connected to position with fracturing water hole 8 separately；Third sealing ring group
12 and the 4th sealing ring group 13 be made of twice 〇 type sealing rubber ring.
As shown in Figure 2 and Figure 4, sliding valve rod 1 is the variable diameter valve rod that top is thick, lower part is thin.
Sliding valve rod 1, valve seat 3, fracturing floral tube 5 and center-pole 6 are made using stainless steel material.
The advantages of hydraulic fracturing detecting earth stress device of isometrical design provided by the utility model, has: (1) effective
Prevent that test equipment fracturing section outer diameter is thin, Yi Rongna falls block, landwaste etc. causes test equipment stuck and can not be retracted to ground
Situation；(2) the worn out caused leak leakage pressure of thin high-pressure rubber hose and test crash situation are completely eliminated；(3) overall stiffness it is big,
It is not susceptible to bending deformation, entire outer diameter is equal, good appearance.
Finally illustrate, the above description is only the embodiments of the present invention, is not intended to limit the patent of the utility model
Range, equivalent structure or equivalent flow shift made by using the description of the utility model and the drawings, or directly or
Other related technical areas are used in indirectly, are also included in the patent protection scope of the utility model.
Claims (5)
1. the hydraulic fracturing detecting earth stress device of isometrical design, comprising sliding valve rod (1), valve seat (3), upper packer (4),
Center-pole (6) and lower packet (7), the sliding valve rod (1) are threaded through in the valve seat (3) and are stretched out by valve seat (3) upper end
It is connected to drilling rod lower end, is offered valve rod water hole (2) in the sliding valve rod (1), the valve rod water hole (2) and drill pipe bore
Connection, the center-pole (6) are connected to the valve seat (3) lower end, and center-pole (6) inner hole and the valve seat (3) inner cavity connect
Logical, the upper packer (4) and lower packet (7) are sequentially sleeved on the center-pole (6), it is characterised in that: on described
The fracturing floral tube (5) being set on center-pole (6), the fracturing flower are additionally provided between packer (4) and lower packet (7)
Pipe (5) is equal with the valve seat (3), upper packer (4) and lower packet (7) outer diameter and is in turn connected to form one from top to bottom
The equal entirety of a outer diameter；Be also provided with L-type via hole (15) in the valve seat (3), the L-type via hole (15) respectively with
Valve seat (3) inner cavity and the connection of upper packer (4) inner cavity, are also provided with packing intercommunicating pore in fracturing floral tube (5) side
(14), the packing intercommunicating pore (14) is connected to the upper packer (4) inner cavity and lower packet (7) inner cavity respectively, described
Fracturing floral tube (5) other side is also provided with fracturing water hole (8), and water hole (9) between bar is also provided in the middle part of the center-pole (6),
Water hole (9) is connected to fracturing floral tube (5) inner cavity between the fracturing water hole (8) and bar, and the sliding valve rod (1) is described
Valve seat (3) it is interior it is intracavitary be equipped with upper and lower two stations；
When the sliding valve rod (1) is located at upper station, the valve rod water hole (2) of sliding valve rod (1) passes through L-type via hole
(15) it is connected to the inner cavity of upper packer (4), upper packer (4) inner cavity passes through packing intercommunicating pore (14) and lower packet
(7) inner cavity is connected to；
When the sliding valve rod (1) is located at lower station, the valve rod water hole (2) of sliding valve rod (1) passes through valve seat (3) inner cavity
It is connected to center-pole (6) inner hole, water hole (9) is connected to fracturing floral tube (5) inner cavity between center-pole (6) inner hole passes through bar, institute
Fracturing floral tube (5) inner cavity is stated to be connected to the fracturing water hole (8).
2. the hydraulic fracturing detecting earth stress device of isometrical design according to claim 1, it is characterised in that: described
The first sealing ring group (10) and the second sealing ring group (11), the first sealing ring group (10) and second are additionally provided in valve seat (3)
Sealing ring group (11) sets up the both ends for being connected to position with valve seat (3) inner cavity in the L-type via hole (15), first sealing ring separately
Group (10) and the second sealing ring group (11) are made of twice 〇 type sealing rubber ring.
3. according to the hydraulic fracturing detecting earth stress device of isometrical design described in claim 1, it is characterised in that: in the cause
It splits and is additionally provided with third sealing ring group (12) and the 4th sealing ring group (13) in floral tube (5), the third sealing ring group (12) and the
Four sealing ring groups (13) set up the both ends that water hole (9) between the bar is connected to position with fracturing water hole (8) separately；The third sealing ring group
(12) and the 4th sealing ring group (13) is made of twice 〇 type sealing rubber ring.
4. the hydraulic fracturing detecting earth stress device of isometrical design according to claim 1, it is characterised in that described: institute
Stating sliding valve rod (1) is the variable diameter valve rod that top is thick, lower part is thin.
5. according to the hydraulic fracturing detecting earth stress device of isometrical design described in claim 1, it is characterised in that: the sliding
Valve rod (1), valve seat (3), fracturing floral tube (5) and center-pole (6) are made using stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820888962.9U CN208564540U (en) | 2018-06-08 | 2018-06-08 | The hydraulic fracturing detecting earth stress device of isometrical design |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820888962.9U CN208564540U (en) | 2018-06-08 | 2018-06-08 | The hydraulic fracturing detecting earth stress device of isometrical design |
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| Publication Number | Publication Date |
|---|---|
| CN208564540U true CN208564540U (en) | 2019-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820888962.9U Expired - Fee Related CN208564540U (en) | 2018-06-08 | 2018-06-08 | The hydraulic fracturing detecting earth stress device of isometrical design |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108756872A (en) * | 2018-06-08 | 2018-11-06 | 地泰科学仪器（武汉）有限公司 | A kind of hydraulic fracturing detecting earth stress device of isometrical design |
| CN109915114A (en) * | 2019-04-12 | 2019-06-21 | 中国地质科学院地质力学研究所 | Anti- mud component and confinement system |
-
2018
- 2018-06-08 CN CN201820888962.9U patent/CN208564540U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108756872A (en) * | 2018-06-08 | 2018-11-06 | 地泰科学仪器（武汉）有限公司 | A kind of hydraulic fracturing detecting earth stress device of isometrical design |
| CN108756872B (en) * | 2018-06-08 | 2023-12-12 | 地泰科学仪器（武汉）有限公司 | Hydraulic fracturing method ground stress testing device with constant diameter design |
| CN109915114A (en) * | 2019-04-12 | 2019-06-21 | 中国地质科学院地质力学研究所 | Anti- mud component and confinement system |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190301 |
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| CF01 | Termination of patent right due to non-payment of annual fee |