CN214532936U

CN214532936U - Underground fracturing pressure detector

Info

Publication number: CN214532936U
Application number: CN202120892406.0U
Authority: CN
Inventors: 朱普文; 秦尧; 陈鹏; 张伟; 赵国彬
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-26
Filing date: 2021-04-26
Publication date: 2021-10-29
Anticipated expiration: 2031-04-26

Abstract

The utility model discloses an underground fracturing pressure detector, which comprises a middle pipe; the outer wall of the periphery of the middle pipe is provided with a protective layer; a baffle groove is arranged on the inner wall of one side of the protective layer; a detection bearing groove is formed in the inner wall of one side of the baffle groove; a detection mechanism is arranged on the inner wall of one side of the detection bearing groove; the inner wall of one side of the baffle groove is provided with limit threaded holes which are uniformly distributed; a closed baffle is arranged on the outer wall of one side of the baffle groove; the inner wall of one side of the closed baffle is provided with fixing threaded holes which are uniformly distributed; the inner wall of one side of the closed baffle is provided with a guide pressure hole. The utility model relates to a through setting up closure baffle, fixed thread hole, spacing screw hole, detecting bearing groove, baffle groove, closure baffle and protective layer are bolted connection with detection mechanism and protective layer for the staff can open closure baffle and take out detection mechanism, detects the maintenance to detection mechanism, avoids detection mechanism to weld in the inside unable taking out of protective layer, improves the device practicality.

Description

Underground fracturing pressure detector

Technical Field

The utility model relates to a belong to pressure measurement appearance technical field, especially relate to a fracturing pressure measurement appearance in pit.

Background

Fracturing is the work progress that forms high pressure in the pit shaft and force the stratum to form the fracture, in order to make the stratum form and keep the fracture in the work progress, need set up pressure measurement appearance in the pipeline in the pit, whether the pressure of monitoring fracturing in the pit accords with the standard, at present, among the prior art, fracturing pressure measurement appearance in the pit sets up inside the pipeline, inconvenient taking out the maintenance after it damages, influence the use of device, consequently, need for a fracturing pressure measurement appearance in the pit urgently.

Through search, the chinese patent with the application number CN200620099442.7 discloses a downhole fracturing pressure monitoring instrument, which is formed by sleeving a central tube between an upper oil tube joint and a lower oil tube joint, wherein the lower oil tube joint is in threaded connection with the upper oil tube joint to form a closed annular space, a monitor is installed in the closed annular space, and a pressure guide hole is designed on the lower oil tube joint. The lower end in the monitor is provided with a pressure gauge in threaded connection with a support, a thermometer is welded on a circuit board in threaded connection with the support, a battery barrel and the support are processed into a whole, a battery is placed in the battery barrel, the circuit board and the thermometer welded on the circuit board are assembled into a whole with the pressure gauge through threaded connection, the circuit board and the thermometer are sleeved in a shell, and the circuit board and the thermometer are sealed and installed by a sealing rubber ring.

One kind in the above-mentioned patent is pressed crack pressure measurement appearance in pit has following not enough: above-mentioned fracturing pressure detector in pit seals to set up inside the pipeline, and inconvenient taking out maintenance after it damages influences the use of device.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the underground fracturing pressure detector of the underground fracturing pressure detector existing in the prior art seals and sets up inside the pipeline, and the maintenance is inconvenient to take out after it damages, and the use of the device is influenced.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a downhole fracture pressure detector comprises an intermediate pipe; the outer wall of the periphery of the middle pipe is provided with a protective layer; a baffle groove is arranged on the inner wall of one side of the protective layer; a detection bearing groove is formed in the inner wall of one side of the baffle groove; a detection mechanism is arranged on the inner wall of one side of the detection bearing groove; the inner wall of one side of the baffle groove is provided with limit threaded holes which are uniformly distributed; a closed baffle is arranged on the outer wall of one side of the baffle groove; the inner wall of one side of the closed baffle is provided with fixing threaded holes which are uniformly distributed; the inner wall of one side of the closed baffle is provided with a guide pressure hole.

As a further aspect of the present invention: the detection mechanism comprises a detection supporting plate, a detection shell, a fixed base and a telescopic connecting rod; the outer wall of the bottom end of the detection supporting plate is arranged on the outer wall of one side of the detection bearing groove; the inner wall of one side of the detection supporting plate is provided with locking threaded holes which are uniformly distributed; detect backup pad top outer wall and set up in detecting casing bottom outer wall.

As a further aspect of the present invention: the outer wall of the top end of the detection supporting plate is provided with a pressure sensor; a control unit is arranged in the detection supporting plate; the pressure sensor is electrically connected with the internal control unit.

As a further aspect of the present invention: a temperature sensor is arranged on the outer wall of the top end of the detection supporting plate; the temperature sensor is electrically connected with the internal control unit.

As a further aspect of the present invention: the outer wall of the top end of the detection supporting plate is arranged on the outer wall of the bottom end of the fixed base; the inner wall of the bottom end of the fixed base is provided with a telescopic spring.

As a further aspect of the present invention: the outer wall of the top end of the telescopic spring is arranged on the outer wall of the bottom end of the telescopic connecting rod; the peripheral outer wall of the telescopic connecting rod is movably connected with the inner wall of one side of the fixed base.

As a further aspect of the present invention: the inner walls of the two sides of the baffle groove are movably connected with arc-shaped connecting plates.

As a further aspect of the present invention: a magnet layer is arranged on the outer wall of one side of the arc-shaped connecting plate; the inner wall of one side of the arc connecting plate is provided with a semicircular groove.

Compared with the prior art, the utility model provides a fracturing pressure measurement appearance in pit possesses following beneficial effect:

1. the utility model relates to a through setting up closure baffle, fixed thread hole, spacing screw hole, detecting bearing groove, baffle groove, closure baffle and protective layer are bolted connection with detection mechanism and protective layer for the staff can open closure baffle and take out detection mechanism, detects the maintenance to detection mechanism, avoids detection mechanism to weld in the inside unable taking out of protective layer, improves the device practicality.

2. The utility model relates to a to pressure sensor, temperature sensor's destruction, bear some pressure when can avoiding the fracturing pressure in the pit to surpass detection range through the elasticity post that sets up fixed baseplate, telescopic connecting rod, expanding spring and constitute, reduce pressure sensor, temperature sensor impaired, improve the device practicality.

3. The utility model relates to a through setting up arc even board, magnet layer and half slot, the arc is even when the board is closed, under the inter attraction on magnet layer for two arcs are even the board and are formed fixed relation, and two half slots merge the formation circular port this moment, go deep into the back in the pit with the intervalve, and inside pressure got into the protective layer from the circular port that the half slot formed, and pressure can keep the arc even closed state of board simultaneously, improved device flexibility.

The parts of the device not involved are the same as or can be implemented using prior art.

Drawings

Fig. 1 is a schematic view of a subjective structure of a downhole fracture pressure detector according to an embodiment of the present invention;

fig. 2 is a schematic diagram illustrating an internal structure of a downhole fracture pressure detector according to an embodiment of the present invention;

fig. 3 is a schematic cross-sectional view of a detection mechanism of the downhole fracture pressure detector according to the present embodiment;

fig. 4 is a schematic cross-sectional view of a fixed base of a downhole fracture pressure detector according to an embodiment of the invention;

fig. 5 is a schematic view of a subjective structure of a downhole fracture pressure detector according to the second embodiment;

fig. 6 is the utility model provides a circuit flow schematic diagram of fracturing pressure detector in pit.

In the figure: 1-intermediate pipe; 2-a protective layer; 3-a closed baffle; 4-fixing the threaded hole; 5-guiding the pressure hole; 6-limiting threaded holes; 7-a detection mechanism; 71-a detection support plate; 72-a detection housing; 73-a pressure sensor; 74-temperature sensor; 75-locking threaded holes; 76-a fixed base; 77-telescopic link; 78-a telescoping spring; 8-baffle slots; 9-detecting a bearing groove; 10-arc connecting plate; 11-a magnet layer; 12-semicircular groove.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The first embodiment is as follows:

a downhole fracture pressure detector, as shown in fig. 1 and 2, comprises a middle pipe 1; the outer wall of the periphery of the middle pipe 1 is fixedly connected with a protective layer 2; a baffle groove 8 is arranged on the inner wall of one side of the protective layer 2; a detection bearing groove 9 is arranged on the inner wall of one side of the baffle groove 8; the inner wall of one side of the detection bearing groove 9 is fixedly connected with a detection mechanism 7; the inner wall of one side of the baffle groove 8 is provided with limit threaded holes 6 which are uniformly distributed; the outer wall of one side of the baffle groove 8 is fixedly connected with a closed baffle 3; the inner wall of one side of the closed baffle 3 is provided with fixing threaded holes 4 which are uniformly distributed; a guide pressure hole 5 is formed in the inner wall of one side of the closed baffle 3; and the closed baffle 3 and the protective layer 2 are connected with the protective layer 2 through bolts, so that the worker can open the closed baffle 3 and take out the detection mechanism 7, the detection mechanism 7 is detected and maintained, the detection mechanism 7 is prevented from being welded inside the protective layer 2 and cannot be taken out, and the practicability of the device is improved.

In order to ensure the normal operation of the detection mechanism 7, as shown in fig. 3, 4 and 6, the detection mechanism 7 includes a detection support plate 71, a detection housing 72, a fixed base 76 and a telescopic link 77; the outer wall of the bottom end of the detection supporting plate 71 is fixedly connected with the outer wall of one side of the detection bearing groove 9; the inner wall of one side of the detection supporting plate 71 is provided with locking threaded holes 75 which are uniformly distributed; the outer wall of the top end of the detection supporting plate 71 is fixedly connected to the outer wall of the bottom end of the detection shell 72 through screws; the outer wall of the top end of the detection supporting plate 71 is fixedly connected with a pressure sensor 73 through a screw; the outer wall of the top end of the detection supporting plate 71 is fixedly connected with a temperature sensor 74 through a screw; the outer wall of the top end of the detection supporting plate 71 is fixedly connected to the outer wall of the bottom end of the fixed base 76 through screws; the inner wall of the bottom end of the fixed base 76 is fixedly connected with an expansion spring 78; the outer wall of the top end of the telescopic spring 78 is fixedly connected with the outer wall of the bottom end of the telescopic connecting rod 77; the peripheral outer wall of the telescopic connecting rod 77 is connected with the inner wall of one side of the fixed base 76 in a sliding way; a control unit is arranged inside the detection support plate 71; the pressure sensor 73 and the temperature sensor 74 are both electrically connected with the internal control unit; the model of pressure sensor 73 is JYB-KB-CW2000, the model of temperature sensor 74 is BM100, pressure sensor 73, temperature sensor 74 are wireless device, conveniently control, it is higher to the precision that the fracturing in the pit detects, the elastic column that fixed base 76, telescopic link 77, expanding spring 78 are constituteed can avoid the fracturing pressure in the pit to surpass the destruction of detecting range to pressure sensor 73, temperature sensor 74, bear partly pressure, it is impaired to reduce pressure sensor 73, temperature sensor 74, improve the device practicality.

When the detection device is used, various power supplies of electric equipment are turned on, the detection mechanism 7 is fixed on the detection bearing groove 9 through the bolts, the locking threaded holes 75 are fixed on the detection bearing groove 9, the closed baffle 3 is fixed on the baffle groove 8 through the fixing threaded holes 4 and the limiting threaded holes 6, the bolts fix the closed baffle on the baffle groove 8, the underground fracturing pressure detector is installed, the middle pipe 1 is deeply arranged underground, pressure is guided to the inner part of the protective layer 2 through the guide pressure holes 5, the detection mechanism 7 detects underground fracturing pressure, when the underground fracturing pressure exceeds the range, the detection shell 72 touches the telescopic connecting rod 77, the telescopic connecting rod 77 gives an upward acting force to the detection shell 72 under the action of the telescopic spring 78, the situation that the temperature sensor 74 and the pressure sensor 73 in the detection mechanism 7 are damaged due to overlarge pressure is avoided, and the practicability of the detection device is improved.

Example two:

in order to more conveniently and quickly take out the detection mechanism 7, as shown in fig. 5, the present embodiment is modified as follows on the basis of the first embodiment: the inner walls of the two sides of the baffle groove 8 are connected with arc-shaped connecting plates 10 through hinges; a magnet layer 11 is arranged on the outer wall of one side of the arc-shaped connecting plate 10; a semicircular groove 12 is formed in the inner wall of one side of the arc-shaped connecting plate 10; magnet layer 11 makes things convenient for two arcs to link board 10 to form fixed relation, and two half slots 12 form the circular port when the arc links board 10 closed, and pressure can get into protective layer 2 through the circular port inside, and the arc links board 10 and conveniently opens, improves the device flexibility.

This embodiment is when using, with detection mechanism 7 installation back, even board 10 closure with the arc, under the inter attraction on magnet layer 11 for two arcs are even board 10 and are formed fixed relation, and two semicircular groove 12 merge this moment and form the circular port, with intermediate tube 1 go deep into back in the pit, inside pressure got into protective layer 2 from the circular port that semicircular groove 12 formed, and pressure can keep the arc even closed state of board 10 simultaneously, improves the device flexibility.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The underground fracturing pressure detector comprises a middle pipe (1), and is characterized in that a protective layer (2) is arranged on the outer wall of the periphery of the middle pipe (1); a baffle groove (8) is arranged on the inner wall of one side of the protective layer (2); a detection bearing groove (9) is arranged on the inner wall of one side of the baffle groove (8); a detection mechanism (7) is arranged on the inner wall of one side of the detection bearing groove (9); the inner wall of one side of the baffle groove (8) is provided with limit threaded holes (6) which are uniformly distributed; a closed baffle (3) is arranged on the outer wall of one side of the baffle groove (8); the inner wall of one side of the closed baffle (3) is provided with fixing threaded holes (4) which are uniformly distributed; a guide pressure hole (5) is arranged on the inner wall of one side of the closed baffle (3).

2. A downhole fracture pressure detector according to claim 1, wherein the detection mechanism (7) comprises a detection support plate (71), a detection housing (72), a fixed base (76), a telescopic link (77); the outer wall of the bottom end of the detection supporting plate (71) is arranged on the outer wall of one side of the detection bearing groove (9); the inner wall of one side of the detection supporting plate (71) is provided with locking threaded holes (75) which are uniformly distributed; the outer wall of the top end of the detection supporting plate (71) is arranged on the outer wall of the bottom end of the detection shell (72).

3. A downhole fracture pressure detector according to claim 2, wherein the outer wall of the top end of the detection support plate (71) is provided with a pressure sensor (73); a control unit is arranged inside the detection supporting plate (71); the pressure sensor (73) is electrically connected with the internal control unit.

4. A downhole fracture pressure detector according to claim 3, wherein the outer wall of the top end of the detection support plate (71) is provided with a temperature sensor (74); the temperature sensor (74) is electrically connected to the internal control unit.

5. The downhole fracture pressure detector according to claim 4, wherein the outer wall of the top end of the detection support plate (71) is arranged on the outer wall of the bottom end of the fixed base (76); the inner wall of the bottom end of the fixed base (76) is provided with a telescopic spring (78).

6. A downhole fracture pressure detector according to claim 5, wherein the top end outer wall of the expansion spring (78) is arranged on the bottom end outer wall of the expansion link (77); the peripheral outer wall of the telescopic connecting rod (77) is movably connected with the inner wall of one side of the fixed base (76).

7. A downhole fracture pressure detector according to claim 6, wherein the inner walls of both sides of the baffle slot (8) are movably connected with arc-shaped connecting plates (10).

8. The downhole fracture pressure detector according to claim 7, wherein the outer wall of one side of the arc-shaped connecting plate (10) is provided with a magnet layer (11); a semicircular groove (12) is arranged on the inner wall of one side of the arc-shaped connecting plate (10).