CN207406334U - Capillary pressure measuring device - Google Patents
Capillary pressure measuring device Download PDFInfo
- Publication number
- CN207406334U CN207406334U CN201721541410.2U CN201721541410U CN207406334U CN 207406334 U CN207406334 U CN 207406334U CN 201721541410 U CN201721541410 U CN 201721541410U CN 207406334 U CN207406334 U CN 207406334U
- Authority
- CN
- China
- Prior art keywords
- pressure
- capillary
- transmission tube
- data acquisition
- capillary tubing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a kind of capillary pressure measuring devices, including underground pressure-transmission tube, capillary tubing, source of the gas, pressure transmitter and data acquisition controller, underground pressure-transmission tube is cylindric, and it is provided with tracting pressuring hole and relief hole, tracting pressuring hole is connected with capillary tubing, capillary tubing passes through the penetration device being arranged on well head coupling part to be connected with booster pump and pressure transmitter, well head coupling part is connected with data acquisition controller, data acquisition controller is connected with pressure transmitter and casing pressure sensor, and pressure transmitter is connected with latent oil directly-driven screw pump；The combination that the utility model passes through pressure-transmission tube, capillary tubing and booster pump, down-hole pressure is transmitted to ground, and is detected in real time in face of down-hole pressure on ground, detection device from underground adverse circumstances influence, long working life can be verified and repaired on ground at any time.
Description
Technical field：
The utility model is related to a kind of pressure measuring unit, more particularly to a kind of capillary pressure measuring device.
Background technology：
For a long time, in DP technology, yield is a most important index, in yield controlling unit, maintains one
Rational hydrodynamic face, it is optimal state to keep pumping balance, and by measuring liquid level, control frequency control can reach,
So hydrodynamic face is a highly important parameter, the approach for obtaining this data now has：
1st, sound wave echoes measuring method：The method use is most extensive, and just precision is low, for gas-producing well, due to that can generate crude oil
Foam, it is even more impossible to measure valid data（Foam can reflection sound wave）；2nd, the direct pressure-sensitive method in underground：The method is seldom used, by pressure
Sensor is placed in underground, and sensor manufacturing process is complicated（Need the power cord of high pressure resistant and the sealing joint of high pressure）, signal
Line is fragile during going into the well, and the corrosion and fouling of well liquid can impact measurement accuracy.
But in place of the equal Shortcomings of two kinds of detection modes, it is therefore desirable to which a kind of detection mode examines down-hole pressure
It surveys.
Utility model content：
Technical problem to be solved in the utility model is：It overcomes the deficiencies of the prior art and provide a kind of simple in structure, logical
The ground that piping transmits down-hole pressure, is detected on ground in face of pressure, the capillary for having detection accurate and easy to operate
Pipe pressure measuring unit.
The technical solution of the utility model is：A kind of capillary pressure measuring device, including underground pressure-transmission tube, capillary tubing, gas
Source, pressure transmitter and data acquisition controller, the underground pressure-transmission tube is cylindric, and is provided with tracting pressuring hole and relief hole,
The tracting pressuring hole is connected with capillary tubing, and the capillary tubing passes through the penetration device and booster pump being arranged on well head coupling part
It is connected with pressure transmitter, the well head coupling part is connected with data acquisition controller, the data acquisition controller and pressure
Power transmitter is connected with casing pressure sensor, and the pressure transmitter is connected with latent oil directly-driven screw pump.
The booster pump is connected with source of the gas, and the data acquisition controller is connected with booster pump and source of the gas, described sleeve pipe pressure
Force snesor is arranged in casing.
Valve is provided between the booster pump and pressure transmitter and well head coupling part, the pressure-transmission tube is arranged on oil
On the downside of pipe, the well head coupling part is production tree.
The data acquisition controller is processor, and is connected with display and frequency converter.The pressure-transmission tube and capillary steel
The material of pipe is 316L stainless steels, and the outer diameter of the capillary tubing is 3.175mm, internal diameter 2.175mm.
The beneficial effects of the utility model are：
1st, down-hole pressure is transmitted to ground by the combination of pressure-transmission tube, capillary tubing and booster pump by the utility model, and
It is detected in real time in face of down-hole pressure on ground, detection device is from the influence of underground adverse circumstances, long working life, Ke Yisui
When verified and repaired on ground.
2nd, the utility model is suitable for the test of straight well, inclined shaft, thick oil thermal extraction, sour well, hp-ht well, meets not
Stop production the requirement tested；The easily liquid level under testing well simultaneously, is not required manual operation, fully automated closed-loop
Control.
3rd, the utility model capillary tubing and pressure-transmission tube can be re-used by cleaning, and can be repeatedly used, with it
He compares test technology, of low cost.
4th, the utility model pressure transmitter uses super diffusion silicon sensor technology, intelligentized temperature-compensating, height
The analog-to-digital conversion feature of stability can meet the needs of latent oil directly-driven screw pump operation completely, realize automation mechanized operation.
5th, valve is provided between the utility model booster pump and pressure transmitter and well head coupling part, is filled for underground
Sensor protection controls when gas control system and inflation.
6th, pressure transmitter and casing pressure sensor sample with reference to depth of falling well, are drawn underground liquid by the utility model
Go out height, progress numerical value shows simultaneously and draws fluid change curve and shown.
Description of the drawings：
Fig. 1 is the structure diagram of capillary pressure measuring device.
Fig. 2 is the testing principle schematic diagram of capillary pressure measuring device.
Specific embodiment：
Embodiment：Referring to Fig. 1 and Fig. 2, in figure, 1- pressure-transmission tubes, 2- capillary tubings, 3- pressure transmitters, 4- data acquisitions
Controller, 5- well heads coupling part, 6- penetration devices, 7- booster pumps, 9- casings.
Capillary pressure measuring device, including underground pressure-transmission tube 1, capillary tubing 2, source of the gas, pressure transmitter 3 and data acquisition control
Device 4 processed, underground pressure-transmission tube 1 is cylindric, and is provided with tracting pressuring hole and relief hole, and tracting pressuring hole is connected with capillary tubing 2, capillary steel
Pipe 2 passes through the penetration device 6 being arranged on well head coupling part 5 to be connected with booster pump 7 and pressure transmitter 3, well head coupling part 5
It is connected with data acquisition controller 4, data acquisition controller 8 is connected with pressure transmitter 3 and casing pressure sensor, and pressure becomes
Device 3 is sent to be connected with latent oil directly-driven screw pump.
Booster pump 7 is connected with source of the gas, and data acquisition controller 8 is connected with booster pump 7 and source of the gas, and casing pressure sensor is set
It puts in casing 9.
Valve is provided between booster pump and pressure transmitter and well head coupling part, pressure-transmission tube is arranged on the downside of oil pipe,
Well head coupling part is production tree.
Data acquisition controller 4 is processor, and is connected with display and frequency converter.The material of pressure-transmission tube 1 and capillary tubing 2
Matter is 316L stainless steels, and the outer diameter of capillary tubing 2 is 3.175mm, internal diameter 2.175mm.
Testing principle is：Capillary tubing 2 full of nitrogen by the fluid pressure of underground, passes through gas conduction to ground (P
Crude oil=P nitrogen), digital quantity is converted by pressure transmitter 3 on ground, with reference to nitrogen gravity in capillary tubing 1, so as to obtain
Go out the fluid pressure of underground, and combine casing pressure sensor, and calculate liquid level (compared with the position of pressure-transmission tube).
P crude oil=PAB（A, 2 levels pressures of B）+ P casings（Casing pressure）.
Nitrogen column gravity in pressure+capillary tubing that P nitrogen=pressure transmitter is monitored.
The course of work of its component is：
Underground pressure-transmission tube：There is the tracting pressuring hole being connected with capillary tubing above, there is extra air venting hole, Ke Yirong below
Receive the nitrogen of certain volume, when down-hole pressure increases, gas is compressed, and a part of gas in pressure-transmission tube is pressed into capillary steel
In pipe；When down-hole pressure reduces, internal gas expansion, gas enters pressure-transmission tube by capillary tubing, is passed when gas volume is more than
During the volume of pressure cylinder, extra gas is discharged by relief hole.
Capillary tubing：Nitrogen is taken up, pressure-transmission tube and geostatic pressure transmitter and booster pump are connected, by the pressure in pressure-transmission tube
It is transferred to ground.Outer diameter 3.175mm, internal diameter 2.175mm, material 316L, operating pressure is up to 85Mpa.
Pressure transmitter：Pressure transmitter uses super diffusion silicon sensor technology, and pressure in capillary tubing is examined
It surveys, and monitoring data is transferred to data acquisition controller and latent oil directly-driven screw pump, and with temperature-compensating, high stability
Analog-to-digital conversion feature.
Data acquisition controller：By pressure transmitter and casing pressure sensor sample, with reference to depth of falling well（Capillary tubing
Middle nitrogen gravity）, so as to show that underground liquid goes out height, can numerical value be carried out by display and shown, draw fluid change curve
And pass through display and shown, the PID of frequency converter is adjusted, and is had automatic starting, is shut down control.
Well head coupling part：By from the capillary tubing of underground connected with booster pump and pressure transmitter, and
Between equipped with valve, controlled for sensor protection when underground ventilating control and inflation.
Booster pump：It will be transported to after nitrogen supercharging through capillary tubing in pressure-transmission tube, operating pressure is up to 60Mpa.
The above descriptions are merely preferred embodiments of the present invention, and not the utility model is made in any form
Limitation, it is every according to the technical essence of the utility model to above example made it is any it is simple modification, equivalent variations with
Modification, in the range of still falling within technical solutions of the utility model.
Claims (4)
1. a kind of capillary pressure measuring device, including underground pressure-transmission tube, capillary tubing, source of the gas, pressure transmitter and data acquisition control
Device processed, it is characterized in that：The underground pressure-transmission tube is be provided with tracting pressuring hole and relief hole cylindric, and the relief hole is arranged on
Under pasta, one end of the capillary tubing passes through the penetration device being arranged on well head coupling part and booster pump and pressure transmitter
Connection, the other end of the capillary tubing are tightly connected with the tracting pressuring hole, and connect cavity with the formation of underground pressure-transmission tube, described
Data acquisition controller is provided on well head coupling part, the data acquisition controller is passed with pressure transmitter, casing pressure
Sensor, booster pump are connected with source of the gas, and the pressure transmitter is connected with latent oil directly-driven screw pump, and the booster pump connects with source of the gas
It connects, described sleeve pipe pressure sensor is arranged in casing.
2. capillary pressure measuring device according to claim 1, it is characterized in that：The booster pump and pressure transmitter and well head
Valve is provided between coupling part, the pressure-transmission tube is arranged on the downside of oil pipe, and the well head coupling part is production tree.
3. capillary pressure measuring device according to claim 1, it is characterized in that：The data acquisition controller is processor,
And it is connected with display and frequency converter.
4. capillary pressure measuring device according to claim 1, it is characterized in that：The material of the pressure-transmission tube and capillary tubing is equal
Outer diameter for 316L stainless steels, and the capillary tubing is 3.175mm, internal diameter 2.175mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721541410.2U CN207406334U (en) | 2017-11-17 | 2017-11-17 | Capillary pressure measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721541410.2U CN207406334U (en) | 2017-11-17 | 2017-11-17 | Capillary pressure measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207406334U true CN207406334U (en) | 2018-05-25 |
Family
ID=62316684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721541410.2U Active CN207406334U (en) | 2017-11-17 | 2017-11-17 | Capillary pressure measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207406334U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107893654A (en) * | 2017-11-17 | 2018-04-10 | 新乡市夏烽电器有限公司 | Capillary pressure measuring equipment |
-
2017
- 2017-11-17 CN CN201721541410.2U patent/CN207406334U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107893654A (en) * | 2017-11-17 | 2018-04-10 | 新乡市夏烽电器有限公司 | Capillary pressure measuring equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105806712B (en) | Hole internal water pressure test device and test macro | |
| CN107893654A (en) | Capillary pressure measuring equipment | |
| CN109236281B (en) | Device and method for detecting annular pressure of gas storage and natural gas well | |
| CN110847894B (en) | Method for determining flow pressure of underground throttling gas well | |
| CN109707336A (en) | A kind of pressure control cementing method based on annular sucking pump | |
| CN105089591A (en) | Method for determining annular gas-liquid interface of steam injection well | |
| CN207406334U (en) | Capillary pressure measuring device | |
| CN204402465U (en) | A kind of drilling fluid leakage judges instrument | |
| CN109780449B (en) | Device and method for detecting ice blockage position of natural gas pipeline | |
| CN201246157Y (en) | Well cementing parameter integrative collecting system | |
| CN213478283U (en) | Underground oil pipe leakage simulation system | |
| CN111208281B (en) | Device and method for testing liquid-plastic-solid three-state volume change in cement hydration process | |
| CN210217716U (en) | Coal bed gas pressure measuring device | |
| CN111058832A (en) | Experimental device and method for simulating fracture of two well cementation interfaces | |
| CN205691428U (en) | Hole internal water pressure test device and test system | |
| CN104975847B (en) | A kind of oil gas well cementation top cement plug position monitoring device and its detection method | |
| CN212722514U (en) | Water pressure test device | |
| CN109900590B (en) | Method for measuring liquid holdup of gas-liquid two-phase flow pipeline | |
| CN206459712U (en) | A kind of pressure acquisition device and hydrodynamic gauge | |
| CN208270127U (en) | Expanding material stress test system with pressure in a kind of restricted clearance | |
| CN203022733U (en) | Tubing string leakage measuring device | |
| CN112664179A (en) | Device and method for positioning water flowing fracture in drilling layered test process | |
| CN111663916A (en) | Underground oil pipe leakage simulation system | |
| CN219492281U (en) | Test device for measuring three-dimensional expansion condition of hydraulic fracturing fracture of tight sandstone | |
| CN206189476U (en) | Be suitable for bored concrete pile concrete placement in -process internal pressure measuring sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |