CN109211440A - It is a kind of based on micrometering away from wellbore annulus pressure sensor - Google Patents
It is a kind of based on micrometering away from wellbore annulus pressure sensor Download PDFInfo
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- CN109211440A CN109211440A CN201810928875.6A CN201810928875A CN109211440A CN 109211440 A CN109211440 A CN 109211440A CN 201810928875 A CN201810928875 A CN 201810928875A CN 109211440 A CN109211440 A CN 109211440A
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- China
- Prior art keywords
- hole
- annulus pressure
- wellbore annulus
- end cap
- micrometering
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/04—Measuring force or stress, in general by measuring elastic deformation of gauges, e.g. of springs
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The present invention disclose it is a kind of based on micrometering away from wellbore annulus pressure sensor, including deformation cabin, with it is described deform cabin connect end cap, connect with the end cap Waterproof connector of cable, across the armored cable of the Waterproof connector of cable and end cap；The inside in the deformation cabin is equipped with fixed plate, the circuit board in the fixed plate, locater plate, the ultrasonic probe being mounted on the locater plate, wellbore annulus pressure causes the distance between the mounting surface for deforming cabin deformation and changing the ultrasonic probe inside it and its opposite, the distance between its mounting surface measured by the ultrasonic probe and its opposite；The circuit board is connect with armored cable, ultrasonic probe, calculates wellbore annulus pressure value based on the measurement distance of the ultrasonic probe by the circuit board, and send wellbore annulus pressure value in real time by the armored cable.Sensor of the invention measures pressure using supersonic sounding principle, and precision is higher, small in size and suitable drilling condition environmental requirement.
Description
Technical field
The present invention relates to geological drilling and technology of instrument and meter field more particularly to it is a kind of based on micrometering away from mineshaft annulus
Pressure sensor.
Background technique
In recent years, with the quickening of Re-search on Urbanization, the demand of the energy is increased, energy problem, which has become, restricts China
An important factor for socio-economic development, it is therefore necessary to accelerate energy exploration exploitation dynamics.In energy exploration and subsequent exploitation rank
Section, all needs that the energy is assessed and exploited using drilling technology, therefore drilling well is the premise of energy development.
Drilling well is using drilling equipment and rock crushing tool broken formation, to form one from earth's surface to earth different depth
Hole process.Traditional drilling technology is usually to be made of drilling machine, drilling rod and drill bit etc..Wherein it is positioned at the drilling machine of earth's surface
Drilling rod provides rotary power and downward pressure, drilling rod can more connections use, drilling rod bottom is connected with drill bit, when drilling rod drive
When drill bit rotates and is pressed down against drill bit, drill bit is by catalase, to realize the purpose of drilling.
During drilling well, annular space is formed between drilling rod and drill hole inner wall, the pressure of annular space is for drilling technology and row
Excavating technology is most important, it is the important parameter for formulating drilling technology and subsequent mining technique, it is therefore necessary to mineshaft annulus
Pressure carries out real-time monitoring.And at this stage, existing pressure sensor is mostly measured based on stress change principle, sensor radial direction body
Product is larger, this contradicts (drilling annular space radial dimension sometimes only the width of 2mm) with drilling annular space radial dimension narrow space, leads
Existing pressure sensor is caused not to be available in underground.
Therefore, be badly in need of develop a kind of precision it is higher, it is small in size and be suitble to the dedicated pressure of drilling condition environmental requirement mineshaft annulus
Force snesor.
Summary of the invention
In view of this, the embodiment provides it is a kind of based on micrometering away from wellbore annulus pressure sensor, use
Supersonic sounding principle measures pressure, and precision is higher, small in size and be suitble to drilling condition environmental requirement.
To achieve the above object, present invention employs a kind of technical solutions: it is a kind of based on micrometering away from wellbore annulus pressure
Sensor, it is described based on micrometering away from wellbore annulus pressure sensor include deform cabin, with it is described deformation cabin connect end cap, and
The Waterproof connector of cable of end cap connection, across the armored cable of the Waterproof connector of cable and end cap；
The inside in the deformation cabin be equipped with fixed plate, the circuit board in the fixed plate, locater plate, be mounted on it is described
Ultrasonic probe on locater plate, wellbore annulus pressure cause the deformation cabin to deform and change the ultrasonic probe inside it
The distance between mounting surface and its opposite measure the distance between its mounting surface and its opposite by the ultrasonic probe,
Wellbore annulus pressure is reflected by the distance that the ultrasonic probe measures；
The circuit board is connect with armored cable, ultrasonic probe, and calculates well by the measurement of ultrasonic probe distance
Cylinder annular pressure value, and wellbore annulus pressure value is sent by the armored cable in real time.
Further, the inside in the deformation cabin is equipped with step groove, is equipped with side in the step groove in the deformation cabin
Shape slot, the locater plate are set in the square groove.
Further, it is equipped with perforation on the locater plate, the ultrasonic probe is installed by the perforation of the locater plate.
Further, the inside in the deformation cabin is equipped with rank groove, places on the rank groove in the deformation cabin described solid
Fixed board.
Further, the first gasket is placed above the fixed plate, the end cap is placed on above first gasket.
Further, the end cap is equipped with first through hole, and the deformation cabin is equipped with the second through-hole, and the first screw passes through
The second through-hole on the deformation cabin is screwed in after first through hole on the end cap, the end cap is connected with deformation cabin, together
When by first gasket compression be sealed, while by the fixed plate compression be fixed.
Further, support is placed above the fixed plate, the circuit board is placed above the support.
Further, the fixed plate, circuit board, respectively correspond on support equipped with third through-hole, fourth hole, the 5th logical
Hole, the support are placed on above the third through-hole of the fixed plate, and the second screw sequentially passes through the 4th on the circuit board
The third through-hole in the fixed plate is screwed in after fifth hole on through-hole, the support.
Further, stepped hole is equipped with above the end cap, the Waterproof connector of cable passes through the ladder on the end cap
Hole is connected.
Further, the second gasket is placed in the stepped hole of the end cap, the Waterproof connector of cable passes through the end
While the stepped hole covered is connected by second gasket compression be sealed, while also by the armored cable hold tightly into
Row sealing.
The technical solution that the embodiment of the present invention provides has the benefit that (1) this sensor using supersonic sounding
Principle is designed, and effectively reduces the radial space of sensor, and radial dimension is smaller, fully meets mineshaft annulus radially small ruler
The safety requirements in very little space；(2) traditional sensor is screw thread installation, and screw thread mounting means need to radially have biggish sky
Between, this is contradicted with mineshaft annulus radial direction small size space, and this sensor is fixedly mounted using radial screw, is effectively shortened
Radial space；(3) pressure measurement is carried out using supersonic sounding principle, precision is higher.
Detailed description of the invention
Fig. 1 be it is of the invention based on micrometering away from wellbore annulus pressure sensor main view；
Fig. 2 be it is of the invention based on micrometering away from wellbore annulus pressure sensor A-A diagrammatic cross-section；
Fig. 3 be it is of the invention based on micrometering away from wellbore annulus pressure sensor top view；
Fig. 4 be it is of the invention based on micrometering away from wellbore annulus pressure sensor composition schematic diagram.
In figure: 1- armored cable, 2- Waterproof connector of cable, 3- end cap, the first screw of 4-, the first gasket of 5-, 6- fixed plate,
7- circuit board, 8- ultrasonic probe, 9- locater plate, 10- deform cabin, 11- support, the second screw of 12-, the second gasket of 13-, 14- rank
Terraced groove, 15- square groove, 16- perforation, 17- rank groove, 18- first through hole, the second through-hole of 19-, 20- third through-hole, 21- the 4th
Through-hole, 22- stepped hole, 23- conducting wire, 24- fifth hole.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is further described.
As shown in Figs 1-4, embodiment of the invention discloses it is a kind of based on micrometering away from wellbore annulus pressure sensor, packet
Include deformation cabin 10, with it is described deformation cabin 10 connect end cap 3, connect with the end cap 3 Waterproof connector of cable 2, across described in
The armored cable 1 of Waterproof connector of cable 2 and end cap 3.Preferably, the armored cable 1 passes through in the Waterproof connector of cable 2
Heart hole.
The inside in the deformation cabin 10 is equipped with step groove 14 (step groove 14 is not drawn into figure), in the deformation
It is equipped with square groove 15 (side's groove 15 is not drawn into figure) in the step groove 14 in cabin 10, the square groove in the deformation cabin 10
Locater plate 9 is equipped in 15, for example, the locater plate 9 is pasted in the square groove 15 in the deformation cabin 10.In the locater plate 9
It is equipped with perforation 16 (being not drawn into the perforation 16 in figure), ultrasonic probe 8 is installed by the perforation 16 of the locater plate 9, preferably
, the perforation 16 is threaded hole, and the ultrasonic probe 8 is connected through a screw thread in the threaded hole for screwing in the locater plate 9.
The inside in the deformation cabin 10 is additionally provided with rank groove 17, places fixed plate on the rank groove 17 in the deformation cabin 10
6, the first gasket 5 is placed above the fixed plate 6, the end cap 3 is placed on 5 top of the first gasket.On the end cap 3
Equipped with first through hole 18 (being not drawn into the first through hole 18 in figure), the deformation cabin 10 is equipped with the second through-hole 19 (in figure not
Draw second through-hole 19), the first screw 4 screws in the deformation cabin 10 after passing through the first through hole 18 on the end cap 3
On second through-hole 19, the end cap 3 is connected with deformation cabin 10, while first gasket 5 compression being sealed, simultaneously
The fixed plate 6 compression is fixed.Preferably, the first through hole 18, the second through-hole 19 are threaded hole, and described first
Screw 4 is connected through a screw thread on the second through-hole 19 for screwing in the deformation cabin 10 after passing through the first through hole 18 on the end cap 3.
The fixed plate 6 is equipped with third through-hole 20 (third through-hole 20 is not drawn into figure), in the fixed plate 6
Third through-hole 20 above place support 11, above the support 11 place circuit board 7.Divide on the circuit board 7, support 11
It is not correspondingly provided with fourth hole 21 and fifth hole 24 (fourth hole 21 and fifth hole 24 are not drawn into figure), the second spiral shell
Nail 12 sequentially passes through the fourth hole 21 on the circuit board 7, screws in the fixation after the fifth hole 24 on the support 11
Third through-hole 20 on plate 6.Preferably, the third through-hole 20, fourth hole 21 and fifth hole 24 are threaded hole, described
Second screw 12 is connected through a screw thread the screw-in fixed plate 6 after sequentially passing through the threaded hole on the circuit board 7 and support 11
On threaded hole.
It is equipped with stepped hole 22 (stepped hole 22 is not drawn into figure) above the end cap 3, in the stepped hole of the end cap 3
The second gaskets 13 are placed in 22, the Waterproof connector of cable 2 is connected by the stepped hole 22 on the end cap 3, while by institute
It states the second gasket 13 compression to be sealed, while being also sealed the armored cable 1 holding.Preferably, the end cap 3
Stepped hole 22 is ladder threaded hole, and the Waterproof connector of cable 2 is connected through a screw thread and the ladder threaded hole phase on the end cap 3
Second gasket 13 compression is sealed while connection, while being also sealed the armored cable 1 holding.
The working principle of sensor of the invention are as follows: the ultrasonic probe 8, armored cable 1 by conducting wire 23 with it is described
Circuit board 7 is connected and (is not drawn into the conducting wire 23 of connection in figure), and the circuit board 7 provides power supply to the ultrasonic probe 8, simultaneously
The measurement data of the ultrasonic probe 8 is connected also through conducting wire 23 into the circuit board 7.When the sensor is placed on pit shaft ring
When in sky, liquid will apply pressure to the deformation cabin 10, cause the deformation cabin 10 to be deformed, i.e., the described ultrasonic probe 8
Institute the distance between mounting surface and its opposite reduce, and the pressure value the big, deform bigger, the more big then described ultrasound spy of deformation
The distance between first 8 mounting surfaces and its opposite are smaller, (described super by 8 real-time measurement of the ultrasonic probe distance at this time
Sonic probe 8 is for measuring the ultrasonic probe 8 apart from the distance between its opposite), and measured value returned in real time described
Circuit board 7, then wellbore annulus pressure is calculated according to the relationship between distance and pressure in the circuit board 7, and calculating is arrived
Wellbore annulus pressure value sent in real time by the armored cable 1.The armored cable 1 is used for the circuit board 7
Power supply is provided, while the circuit board 7 also exports the pressure value being finally calculated through the armored cable 1.For example, pit shaft
Annular pressure value can be calculated according to formula (1):
F=kL (1)
Wherein, F is wellbore annulus pressure；K is calibration coefficient, is constant；L is that the distance of the ultrasonic probe 8 measurement becomes
Change amount.
The technical solution that the embodiment of the present invention provides has the benefit that (1) this sensor using supersonic sounding
Principle is designed, and effectively reduces the radial space of sensor, and radial dimension is smaller, fully meets mineshaft annulus radially small ruler
The safety requirements in very little space；(2) traditional sensor is screw thread installation, and screw thread mounting means need to radially have biggish sky
Between, this is contradicted with mineshaft annulus radial direction small size space, and this sensor is fixedly mounted using radial screw, is effectively shortened
Radial space；(3) pressure measurement is carried out using supersonic sounding principle, precision is higher.
It is worth noting that: in the description of the present invention, the meaning of " plurality " is two or more, unless otherwise bright
It is really specific to limit.In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected, can
To be mechanical connection, for the ordinary skill in the art, above-mentioned term can be understood in this hair as the case may be
Concrete meaning in bright.
Herein, the nouns of locality such as related front, rear, top, and bottom are to be located in figure with components in attached drawing and zero
Part mutual position defines, only for the purpose of expressing the technical solution clearly and conveniently.It should be appreciated that the noun of locality
Use should not limit the claimed range of the application.
In the absence of conflict, the feature in embodiment and embodiment herein-above set forth can be combined with each other.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. it is a kind of based on micrometering away from wellbore annulus pressure sensor, it is characterised in that: it is described based on micrometering away from mineshaft annulus
Pressure sensor includes deforming cabin, the end cap connecting with the deformation cabin, the Waterproof connector of cable connecting with the end cap, passing through
The armored cable of the Waterproof connector of cable and end cap；
The inside in the deformation cabin is equipped with fixed plate, the circuit board in the fixed plate, locater plate, is mounted on the ranging
Ultrasonic probe on plate, wellbore annulus pressure cause the installation for deforming cabin and deforming and changing the ultrasonic probe inside it
The distance between face and its opposite measure the distance between its mounting surface and its opposite by the ultrasonic probe, by institute
State the distance reflection wellbore annulus pressure of ultrasonic probe measurement；
The circuit board is connect with armored cable, ultrasonic probe, and calculates pit shaft ring by the measurement of ultrasonic probe distance
Pneumatics force value, and wellbore annulus pressure value is sent by the armored cable in real time.
2. it is according to claim 1 based on micrometering away from wellbore annulus pressure sensor, it is characterised in that: the deformation cabin
Inside be equipped with step groove, it is described deformation cabin step groove in be equipped with square groove, the locater plate be set to it is described rectangular
In slot.
3. it is according to claim 1 based on micrometering away from wellbore annulus pressure sensor, it is characterised in that: in the ranging
Plate is equipped with perforation, installs the ultrasonic probe by the perforation of the locater plate.
4. it is according to claim 1 based on micrometering away from wellbore annulus pressure sensor, it is characterised in that: the deformation cabin
Inside be equipped with rank groove, it is described deformation cabin rank groove on place the fixed plate.
5. it is according to claim 4 based on micrometering away from wellbore annulus pressure sensor, it is characterised in that: in the fixation
The first gasket is placed above plate, the end cap is placed on above first gasket.
6. it is according to claim 5 based on micrometering away from wellbore annulus pressure sensor, it is characterised in that: on the end cap
Equipped with first through hole, the deformation cabin is equipped with the second through-hole, and the first screw screws in after passing through the first through hole on the end cap
The end cap is connected by the second through-hole on the deformation cabin with deformation cabin, while first gasket compression progress is close
Envelope, while fixed plate compression being fixed.
7. it is according to claim 1 based on micrometering away from wellbore annulus pressure sensor, it is characterised in that: in the fixation
Support is placed above plate, and the circuit board is placed above the support.
8. it is according to claim 7 based on micrometering away from wellbore annulus pressure sensor, it is characterised in that: the fixation
Plate, circuit board are respectively corresponded equipped with third through-hole, fourth hole, fifth hole on support, and the support is placed on the fixation
Above the third through-hole of plate, the second screw sequentially passes through the fourth hole on the circuit board, the fifth hole on the support
The third through-hole in the fixed plate is screwed in afterwards.
9. it is according to claim 1 based on micrometering away from wellbore annulus pressure sensor, it is characterised in that: on the end cap
Side is equipped with stepped hole, and the Waterproof connector of cable is connected by the stepped hole on the end cap.
10. it is according to claim 9 based on micrometering away from wellbore annulus pressure sensor, it is characterised in that: at the end
The second gasket is placed in the stepped hole of lid, it will while the Waterproof connector of cable is connected by the stepped hole on the end cap
The second gasket compression is sealed, while being also sealed armored cable holding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810928875.6A CN109211440A (en) | 2018-08-15 | 2018-08-15 | It is a kind of based on micrometering away from wellbore annulus pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810928875.6A CN109211440A (en) | 2018-08-15 | 2018-08-15 | It is a kind of based on micrometering away from wellbore annulus pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109211440A true CN109211440A (en) | 2019-01-15 |
Family
ID=64988757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810928875.6A Pending CN109211440A (en) | 2018-08-15 | 2018-08-15 | It is a kind of based on micrometering away from wellbore annulus pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109211440A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2203539C (en) * | 1994-10-26 | 2003-08-19 | Allen R. Grahn | Triaxial normal and shear force sensor |
| CN106248288A (en) * | 2016-07-18 | 2016-12-21 | 无锡信大气象传感网科技有限公司 | A kind of self-align atmospheric pressure measurement device |
| CN107144262A (en) * | 2017-06-13 | 2017-09-08 | 中国地质大学（武汉） | A kind of double-shaft tilt angle sensor based on conducting probe |
| CN107144263A (en) * | 2017-07-17 | 2017-09-08 | 中国地质大学（武汉） | A kind of obliquity sensor based on capacitance principle |
-
2018
- 2018-08-15 CN CN201810928875.6A patent/CN109211440A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2203539C (en) * | 1994-10-26 | 2003-08-19 | Allen R. Grahn | Triaxial normal and shear force sensor |
| CN106248288A (en) * | 2016-07-18 | 2016-12-21 | 无锡信大气象传感网科技有限公司 | A kind of self-align atmospheric pressure measurement device |
| CN107144262A (en) * | 2017-06-13 | 2017-09-08 | 中国地质大学（武汉） | A kind of double-shaft tilt angle sensor based on conducting probe |
| CN107144263A (en) * | 2017-07-17 | 2017-09-08 | 中国地质大学（武汉） | A kind of obliquity sensor based on capacitance principle |
Non-Patent Citations (1)
| Title |
|---|
| 王旭东等: "井下钻井工程参数测量系统设计", 《西南石油大学学报(自然科学版)》 * |
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Application publication date: 20190115 |