CN212837783U

CN212837783U - Device for measuring ground stress by hydraulic fracturing method

Info

Publication number: CN212837783U
Application number: CN202021823509.3U
Authority: CN
Inventors: 曾戡; 龚行; 廖德华; 蒋健; 贺建萍; 吴仰锋; 朱春生; 陈笃燊; 徐勇; 余定仙
Original assignee: Guangdong Zhurong Architecture & Engineering Design Co ltd
Current assignee: Guangdong Zhurong Architecture & Engineering Design Co ltd
Priority date: 2020-08-27
Filing date: 2020-08-27
Publication date: 2021-03-30
Anticipated expiration: 2030-08-27

Abstract

The utility model discloses a hydrofracturing method measurement ground stress device, which comprises a base, the top of the base is in threaded connection with a first motor, the output shaft of the first motor is welded with a first threaded rod, the outer side wall of the first threaded rod is in threaded connection with a first movable plate, one side of the first movable plate is in sliding connection with a plate body, the bottom of the plate body is fixedly connected with the base, one side of the plate body is welded with a support plate, the bottom of the support plate is fixedly connected with a first bearing, the inner ring of the first bearing is fixedly connected with the first threaded rod, the utility model enables the first movable plate to drive a connecting plate and a fixed plate to move upwards under the action of the first threaded rod through the arrangement of the first threaded rod and the first movable plate, thereby enabling a second motor to drive a drill bit and the first threaded rod to drill on exposed bedrock, and further enabling the device to have the function of drilling, the measurement work is convenient to carry out.

Description

Device for measuring ground stress by hydraulic fracturing method

Technical Field

The utility model relates to a hydraulic fracturing method technical field specifically is a hydraulic fracturing method survey ground stress device.

Background

The existing hydraulic fracturing method is also called as hydraulic fracturing method, and is an absolute ground stress measuring method. When in measurement, firstly, a section of exposed drilling hole of bedrock is taken, and the upper end and the lower end are sealed by a packer; then the liquid is injected, pressurized until the walls of the hole are ruptured, and the pressure change with time is recorded and the rupture orientation is observed with an impression tool or a downhole television. And calculating the magnitude and the direction of the in-situ main stress by using a corresponding formula according to the recorded fracture pressure, pump-off pressure and fracture azimuth. In the prior art, the device for measuring the ground stress by the hydrofracturing method has a single function and does not have the function of drilling the exposed bedrock; therefore, before the exposed bedrock is measured by the hydrofracturing method crustal stress measuring device, drilling equipment is required to be additionally arranged to drill the bedrock, and the drilled hole diameter is difficult to be completely matched with a piston for extrusion, so that inconvenience is brought to the measuring work.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hydrofracturing method measures ground stress device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a device for measuring ground stress by a hydrofracturing method comprises a base, wherein a first motor is connected to the top of the base in a threaded manner, a first threaded rod is welded to an output shaft of the first motor, a first movable plate is connected to the outer side wall of the first threaded rod in a threaded manner, a plate body is connected to one side of the first movable plate in a sliding manner, the bottom of the plate body is fixedly connected with the base, a supporting plate is welded to one side of the plate body, a first bearing is fixedly connected to the bottom of the supporting plate, an inner ring of the first bearing is fixedly connected with the first threaded rod, a connecting plate is welded to the other side of the first movable plate, a second motor is connected to one side of the connecting plate in a threaded manner, a second threaded rod is welded to an output shaft of the second motor, a second bearing is fixedly connected to, the bottom of the fixed plate is welded with the connecting plate, one side of the fixed plate is connected with a vertical plate in a sliding mode, the bottom of the vertical plate is welded with the base, the top of the second threaded rod penetrates through the second bearing and is welded with the drill bit, the top of the base is welded with the first support, one side of the first support is welded with the top seat, the bottom of the top seat is welded with the first hydraulic cylinder, the cylinder body of the first hydraulic cylinder is provided with a pressure gauge, the piston rod of the first hydraulic cylinder is fixedly connected with a piston, one side of the first support is fixedly connected with a water pump, the water inlet of the water pump is communicated with a water inlet pipe, one end, away from the water pump, of the water inlet pipe is communicated with a water tank, the bottom of the water tank is fixedly connected with the base, the water outlet of the water pump is communicated with a, the top welding of base has the second support, one side and the footstock welding of second support.

As further preferable in the present technical solution: the top of the water tank is communicated with a hose.

As further preferable in the present technical solution: and a second hydraulic cylinder is welded on one side of the second support, and a cylinder body of the second hydraulic cylinder is welded with the base.

As further preferable in the present technical solution: a piston rod of the second hydraulic cylinder is welded with a second movable plate, a top plate is welded at the top of one side of the second movable plate, and a bottom plate is welded at the bottom of one side of the second movable plate.

As further preferable in the present technical solution: the other side of the second movable plate is connected with the second support in a sliding mode, and the inner threads of the top plate are connected with nine bolts.

As further preferable in the present technical solution: nine the bottom of bolt runs through the roof and the welding has the clamp plate, the lug has all been welded to the adjacent one side of clamp plate and bottom plate.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model has the advantages that through the arrangement of the second threaded rod with the same diameter as the piston, after the second threaded rod is driven by the second motor to start rotating, a hole groove with the same diameter as the piston can be drilled in the exposed bedrock under the action of the drill bit;

two, the utility model discloses a setting of first threaded rod and first fly leaf makes first fly leaf drive connecting plate and fixed plate rebound under the effect of first threaded rod to make the second motor can drive drill bit and first threaded rod and drill on exposed bedrock, and then make this device possess the function of drilling, made things convenient for going on of measurement.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of a first motor of the present invention;

fig. 3 is a schematic diagram of a second movable plate structure of the present invention.

In the figure: 1. a base; 2. a first motor; 3. a first threaded rod; 4. a first movable plate; 5. a plate body; 6. a first bearing; 7. a support plate; 8. a connecting plate; 9. a second motor; 10. a second threaded rod; 11. a drill bit; 12. a second bearing; 13. a fixing plate; 14. a vertical plate; 15. a water tank; 16. a water inlet pipe; 17. a water pump; 18. a first bracket; 19. a hose; 20. a drain pipe; 21. a housing; 22. a top seat; 23. a first hydraulic cylinder; 24. a pressure gauge; 25. a piston; 26. a second hydraulic cylinder; 27. a second bracket; 28. a second movable plate; 29. a base plate; 30. a top plate; 31. a bolt; 32. pressing a plate; 33. and (4) a bump.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-3, the present invention provides a technical solution: a device for measuring ground stress by a hydrofracturing method comprises a base 1, wherein the top of the base 1 is in threaded connection with a first motor 2, an output shaft of the first motor 2 is welded with a first threaded rod 3, the outer side wall of the first threaded rod 3 is in threaded connection with a first movable plate 4, one side of the first movable plate 4 is in sliding connection with a plate body 5, the bottom of the plate body 5 is fixedly connected with the base 1, one side of the plate body 5 is welded with a support plate 7, the bottom of the support plate 7 is fixedly connected with a first bearing 6, the inner ring of the first bearing 6 is fixedly connected with the first threaded rod 3, the other side of the first movable plate 4 is welded with a connecting plate 8, one side of the connecting plate 8 is in threaded connection with a second motor 9, the output shaft of the second motor 9 is welded with a second threaded rod 10, the outer side wall of the, the bottom of the fixed plate 13 is welded with the connecting plate 8, one side of the fixed plate 13 is slidably connected with a vertical plate 14, the bottom of the vertical plate 14 is welded with the base 1, the top of the second threaded rod 10 penetrates through the second bearing 12 and is welded with the drill bit 11, the top of the base 1 is welded with the first support 18, one side of the first support 18 is welded with a top seat 22, the bottom of the top seat 22 is welded with a first hydraulic cylinder 23, a pressure gauge 24 is installed on a cylinder body of the first hydraulic cylinder 23, a piston rod of the first hydraulic cylinder 23 is fixedly connected with a piston 25, one side of the first support 18 is fixedly connected with a water pump 17, a water inlet of the water pump 17 is communicated with a water inlet pipe 16, one end of the water inlet pipe 16, which is far away from the water pump 17, is communicated with a water tank 15, the bottom of the water tank 15 is, one end of the drain pipe 20 is communicated with the hose 19, the top of the base 1 is welded with a second bracket 27, and one side of the second bracket 27 is welded with the top seat 22; the main function of the top seat 22 is to support the first hydraulic cylinder 23 and the housing 21.

In this embodiment, specifically: the top of the water tank 15 is communicated with a hose 19; the hose 19 can be bent and turned freely, and its length can be enough for the drain pipe 20 to move to the upper part of the hole groove.

In this embodiment, specifically: a second hydraulic cylinder 26 is welded on one side of the second support 27, and the cylinder body of the second hydraulic cylinder 26 is welded with the base 1; under the dual fixed support of second support 27 and base 1, second hydraulic cylinder 26 has avoided in the basement rock pressurized process, and second hydraulic cylinder 26 produces the condition emergence of rocking.

In this embodiment, specifically: a piston rod of the second hydraulic cylinder 26 is welded with a second movable plate 28, the top of one side of the second movable plate 28 is welded with a top plate 30, and the bottom of one side of the second movable plate 28 is welded with a bottom plate 29; the primary function of the second flap 28 is to support the top panel 30 and the bottom panel 29.

In this embodiment, specifically: the other side of the second movable plate 28 is slidably connected with the second bracket 27, and the inner thread of the top plate 30 is connected with nine bolts 31; the second bracket 27 can make the second movable plate 28 more stable during the movement.

In this embodiment, specifically: the bottoms of the nine bolts 31 penetrate through the top plate 30 and are welded with the pressing plate 32, and the adjacent sides of the pressing plate 32 and the bottom plate 29 are welded with the convex blocks 33; the main function of the projections 33 is to increase the friction of the pressure plate 32 and the bottom plate 29 against the bedrock, thereby increasing the clamping force.

The first electric machine 2 is of the type: YE 2-100;

the second electric machine 9 is of the type: YE 2-100;

the water pump 17 is of the type: IH 50-32-160;

the first hydraulic cylinder 23 is of the type: HSG;

the second hydraulic cylinder 26 is of the type: HSG;

when the water pump is used, a switch group for controlling the starting or closing of the first motor 2, the second motor 9, the water pump 17, the first hydraulic cylinder 23 and the second hydraulic cylinder 26 is installed on the base 1, and the switch group is connected with an external mains supply and used for supplying power to the first motor 2, the second motor 9, the water pump 17, the first hydraulic cylinder 23 and the second hydraulic cylinder 26; placing a bare bedrock on the floor 29 with a portion of the bedrock extending from the floor 29; the bolt 31 is screwed, and the bolt 31 drives the pressing plate 32 and the lug 33 to clamp the bedrock; the second hydraulic cylinder 26 is started through the switch set, so that the second hydraulic cylinder 26 drives the bedrock to move to the designated position through the second movable plate 28; the first motor 2 and the second motor 9 are started through the switch group, and the second motor 9 drives the drill bit 11 to rotate through the second threaded rod 10; the first motor 2 drives the first movable plate 4 to move upwards on one side of the plate body 5 through the first threaded rod 3; the first movable plate 4 drives the second motor 9 to move upwards through the connecting plate 8, so that the drill bit 11 and the second threaded rod 10 can drill a hole groove in the bedrock; the bottom end of the hole groove is sealed by using a packer, and then the water pump 17 is started through a switch group; the water pump 17 pumps water from the water tank 15 and sprays the water from the water discharge pipe 20; taking the drain pipe 20 out of the shell 21, aligning the drain pipe with the opened hole groove to enable the hole groove to be filled with water, sealing the top end of the hole groove by using a packer, and enabling the piston rod of the first hydraulic cylinder 23 and the piston 25 to penetrate through the packer to enter the hole groove; starting the first hydraulic cylinder 23 through the switch group, wherein the first hydraulic cylinder 23 extrudes water in the hole groove through the piston 25; when the hole groove is cracked under the action of water pressure, the pressure value on the pressure gauge 24 is observed, and the pressure value of the first hydraulic cylinder 23 when the hole groove is cracked can be obtained.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a hydrofracturing method survey ground stress device, includes base (1), its characterized in that: the top of the base (1) is in threaded connection with a first motor (2), an output shaft of the first motor (2) is welded with a first threaded rod (3), the outer side wall of the first threaded rod (3) is in threaded connection with a first movable plate (4), one side of the first movable plate (4) is in sliding connection with a plate body (5), the bottom of the plate body (5) is fixedly connected with the base (1), a supporting plate (7) is welded on one side of the plate body (5), a first bearing (6) is fixedly connected with the bottom of the supporting plate (7), an inner ring of the first bearing (6) is fixedly connected with the first threaded rod (3), a connecting plate (8) is welded on the other side of the first movable plate (4), one side of the connecting plate (8) is in threaded connection with a second motor (9), and an output shaft of the second motor (9) is welded with a second threaded rod (10, the outer side wall of the second threaded rod (10) is fixedly connected with a second bearing (12), the outer ring of the second bearing (12) is fixedly connected with a fixing plate (13), the bottom of the fixing plate (13) is welded with a connecting plate (8), one side of the fixing plate (13) is slidably connected with a vertical plate (14), the bottom of the vertical plate (14) is welded with the base (1), the top of the second threaded rod (10) penetrates through the second bearing (12) and is welded with a drill bit (11), the top of the base (1) is welded with a first support (18), one side of the first support (18) is welded with a top seat (22), the bottom of the top seat (22) is welded with a first hydraulic cylinder (23), a pressure gauge (24) is installed on a cylinder body of the first hydraulic cylinder (23), and a piston rod of the first hydraulic cylinder (23) is fixedly connected with a piston, one side fixedly connected with water pump (17) of first support (18), the water inlet intercommunication of water pump (17) has inlet tube (16), the one end intercommunication that water pump (17) were kept away from in inlet tube (16) has water tank (15), the bottom and base (1) fixed connection of water tank (15), the delivery port intercommunication of water pump (17) has hose (19), the bottom welding of footstock (22) has casing (21), drain pipe (20) have been inserted to the inside of casing (21), the one end and hose (19) intercommunication of drain pipe (20), the top welding of base (1) has second support (27), one side and the footstock (22) welding of second support (27).

2. The device for measuring the crustal stress by the hydraulic fracturing method according to claim 1, wherein: the top of the water tank (15) is communicated with a hose (19).

3. The device for measuring the crustal stress by the hydraulic fracturing method according to claim 1, wherein: and a second hydraulic cylinder (26) is welded on one side of the second support (27), and the cylinder body of the second hydraulic cylinder (26) is welded with the base (1).

4. The device for measuring the crustal stress by the hydraulic fracturing method according to claim 3, wherein: a second movable plate (28) is welded to a piston rod of the second hydraulic cylinder (26), a top plate (30) is welded to the top of one side of the second movable plate (28), and a bottom plate (29) is welded to the bottom of one side of the second movable plate (28).

5. The device for measuring the crustal stress by the hydraulic fracturing method according to claim 4, wherein: the other side of the second movable plate (28) is connected with the second support (27) in a sliding mode, and the inner threads of the top plate (30) are connected with nine bolts (31) in number.

6. The apparatus for measuring ground stress by hydraulic fracturing as claimed in claim 5, wherein: nine the bottom of bolt (31) runs through roof (30) and the welding has clamp plate (32), lug (33) all have been welded to clamp plate (32) and one side that bottom plate (29) are adjacent.