CN206459712U - A kind of pressure acquisition device and hydrodynamic gauge - Google Patents
A kind of pressure acquisition device and hydrodynamic gauge Download PDFInfo
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- CN206459712U CN206459712U CN201621443394.9U CN201621443394U CN206459712U CN 206459712 U CN206459712 U CN 206459712U CN 201621443394 U CN201621443394 U CN 201621443394U CN 206459712 U CN206459712 U CN 206459712U
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Abstract
The utility model provides a kind of pressure acquisition device and hydrodynamic gauge, and for gathering the annular pressure between wellhead casing pipe and testing tube in salt hole air reserved storeroom cavity, device includes：Atmospheric valve, low-pressure chamber, control valve and hyperbaric chamber；One end of low-pressure chamber is connected by control valve with hyperbaric chamber one end, and the other end of described low-pressure chamber is provided with atmospheric valve；Hyperbaric chamber is provided with pressure sensor, and the other end in hyperbaric chamber is connected with well head.The utility model is without tripping in survey tool in the wellbore, the operating modes such as nitrogen/bittern interface monitoring during chamber, gas storage pneumatic sealing test, gas well annular space be with pressure are made suitable for salt hole air reserved storeroom, temperature in wellbore section, pressure traverse and Sound speed profile can be calculated, and then dynamic oil level in the accurate pit shaft of measurement in real time, and existing equipment is unable to reach these effects.
Description
Technical field
The utility model is related to geological exploration techniques, is concretely a kind of pressure acquisition device and hydrodynamic planar survey dress
Put.
Background technology
During natural gas salt hole air reserved storeroom makes chamber, by central tube from ground to underground salt deposit water filling, and in
Annular space between heart pipe and intervalve returns out bittern.Cavity is formed with the continuous progress of this process, in salt deposit and is constantly increased
Greatly, until the volume of the cavity reaches design requirement.During chamber is made, to ensure that the bottom and top of salt deposit are not worn by molten,
Prevent the natural gas of storage from leaking, it is molten as hindering generally to inject nitrogen from the annular space between intervalve and sleeve pipe to underground
Agent.By the depth for adjusting nitrogen/bittern interface, you can the shape of the molten chamber of control simultaneously protects the bottom and top of salt deposit not molten
Wear.Prior art is based on current source theory, and accuracy of detection is limited by quantity and the distribution of sensor；With gas-water interface depth
It is continually changing, it is necessary to periodically adjust tubing string position, workload is big；In addition, for HTHP salt hole air reserved storeroom, the work of sensor
Make the life-span by great challenge.How to change this present situation and make the problem of chamber is in the urgent need to address as salt cave.
Nitrogen in annular space between the accurate monitoring sleeve of salt hole air reserved storeroom cavity pressurized test sealing detection needs and test string
The situation of change of gas/bittern interface location.Prior art is neutron logging instrument.The technology needs the measurement work of tripping in the wellbore
Tool, complicated construction technique, cost is high；In addition, the potential health risk of neutron source also can not be ignored in operation process.
Utility model content
The oil-water interfaces depth the utility model embodiment measured when being defined certain in pit shaft provides a kind of pressure acquisition
Device, for gathering the annular pressure between wellhead casing pipe and testing tube in salt hole air reserved storeroom cavity, device includes：Emptying
Valve, low-pressure chamber, control valve and hyperbaric chamber；Wherein,
One end of described low-pressure chamber is connected by control valve with hyperbaric chamber one end, and the other end of described low-pressure chamber is set
There is atmospheric valve；
Described hyperbaric chamber is provided with pressure sensor, and the other end in hyperbaric chamber is connected with well head.
In the utility model embodiment, described device also includes：Pressure-temperature sensor, is arranged at the hyperbaric chamber.
In the utility model embodiment, described device also includes：Pressure gauge, is arranged at the low-pressure chamber.
Meanwhile, the utility model also provides a kind of hydrodynamic gauge for 2-35MPa high-pressure gas wells, including：Pressure
Force acquisition device, data acquisition equipment and computer, described pressure acquisition device pass through data acquisition equipment and computer
It is connected；Wherein,
The pressure acquisition device includes：Atmospheric valve, low-pressure chamber, control valve and hyperbaric chamber；
One end of described low-pressure chamber is connected by control valve with hyperbaric chamber one end, and the other end of described low-pressure chamber is set
There is atmospheric valve, and data acquisition equipment is connected to by the atmospheric valve；
Described hyperbaric chamber is connected provided with collection pressure sensor, the other end in hyperbaric chamber with well head.
In the utility model embodiment, pressure acquisition device also includes：Pressure-temperature sensor, is arranged at the high pressure
Room.
In the utility model embodiment, pressure acquisition device also includes：Pressure gauge, is arranged at the low-pressure chamber.
Pressure sensor is microphone in the utility model embodiment.
The utility model is without tripping in survey tool in the wellbore, it is adaptable to which salt hole air reserved storeroom makes nitrogen/halogen during chamber
The operating mode such as water termination monitoring, gas storage pneumatic sealing test (nitrogen/bittern), gas well annular space (natural gas) with pressure, can calculate pit shaft
Dynamic oil level in temperature profile, pressure traverse and Sound speed profile, and then the accurate pit shaft of measurement in real time, and existing equipment can not
Reach these effects.
For above and other objects, features and advantages of the present utility model can be become apparent, preferable reality cited below particularly
Example is applied, and coordinates institute's accompanying drawings, is described in detail below.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of schematic diagram of pressure acquisition device disclosed in the utility model；
Fig. 2 is the schematic diagram of the disclosed hydrodynamic gauge for 2-35MPa high-pressure gas wells of the utility model；
Fig. 3 is the schematic diagram in the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
The utility model discloses a kind of pressure acquisition device, for gathering wellhead casing pipe and survey in salt hole air reserved storeroom cavity
Annular pressure between test tube, as shown in figure 1, pressure acquisition device of the present utility model includes：Atmospheric valve 101, low-pressure chamber
102, control valve 103 and hyperbaric chamber 104；
One end of low-pressure chamber 101 is connected by control valve 103 with hyperbaric chamber one end, and the other end of low-pressure chamber 102 is provided with
Atmospheric valve；
Hyperbaric chamber 104 is provided with pressure sensor 105, and the other end in hyperbaric chamber 104 is connected with well head.
In the utility model embodiment, pressure acquisition device also includes：Pressure-temperature sensor 106, is arranged at hyperbaric chamber
104, pressure gauge 107 is arranged at the low-pressure chamber.
Pressure sensor is microphone in the utility model embodiment.
Meanwhile, the utility model also provides a kind of hydrodynamic gauge for 2-35MPa high-pressure gas wells, such as Fig. 2 institutes
Show, including：Above-mentioned pressure acquisition device 208, data acquisition equipment 209 and computer 210, pressure acquisition device passes through number
It is connected according to collecting device 209 with computer 210；Wherein,
Pressure acquisition device 208 includes：Atmospheric valve, low-pressure chamber, control valve and hyperbaric chamber；
One end of low-pressure chamber is connected by control valve with hyperbaric chamber one end, and the other end of low-pressure chamber is provided with atmospheric valve, and
Data acquisition equipment is connected to by the atmospheric valve；
Hyperbaric chamber is connected provided with collection pressure sensor, the other end in hyperbaric chamber with well head.
Oil-water interfaces depth in the accurate pit shaft of measurement in real time, described device also includes：Pressure-temperature sensor, is set
In the hyperbaric chamber.
Oil-water interfaces depth in the accurate pit shaft of measurement in real time, described device also includes：Pressure gauge, is arranged at described low
Pressure chamber.
During the gas storage of natural gas salt cave 204 makes chamber, by central tube 201 from ground to underground salt deposit water filling, and
Bittern 205 is returned out by the annular space between central tube 201 and intervalve 202.With the continuous progress of this process, shape in salt deposit
Increase into cavity and constantly, until the volume of the cavity reaches design requirement.During chamber is made, for ensure salt deposit bottom and
Top is not worn by molten, prevents the natural gas of storage from leaking, generally from the annular space between intervalve 202 and sleeve pipe 203 to well
Lower injection nitrogen 206 is used as resistance solvent.By the depth for adjusting nitrogen/bittern interface 207, you can the shape of the molten chamber of control and guarantor
The bottom and top for protecting salt deposit are not worn by molten.
Technical solutions of the utility model are described in further details with reference to specific embodiment.
The utility model embodiment provides a kind of device suitable for 2-35MPa high-pressure gas well hydrodynamic planar survey, and it shows
It is intended to as shown in figure 3, the hydrodynamic gauge includes：Air gun (i.e. above-mentioned pressure acquisition device), data acquisition equipment, meter
Calculation machine.Air gun includes：Control valve, atmospheric valve, hyperbaric chamber, low-pressure chamber, the first end of low-pressure chamber are connected with atmospheric valve, low-pressure chamber
Second end is connected with the first end of the control valve, and the second end of control valve and the first end in hyperbaric chamber are connected, the hyperbaric chamber
The second end be provided with external screw thread, for being connected with well head.Hyperbaric chamber is provided with pressure sensor, for measuring dynamic in annular space
Pressure signal.Hyperbaric chamber is also equipped with pressure/temperature sensor, the pressure and temperature for measuring well head.In addition, low-pressure chamber
Pressure gauge is installed.
When in use, control valve and atmospheric valve are opened completely, coordinates the valve (not marked in figure) at well head, air-discharging
Residual gas in rifle, closes atmospheric valve, the valve at well head, closing control valve is opened completely.Now pressure in air gun etc.
In surface casing pressure.Slow to open atmospheric valve, low-pressure chamber pressure release makes to produce a suitable pressure difference between hyperbaric chamber and low-pressure chamber,
Close atmospheric valve.
It is quick to open and closing control valve, a pressure oscillation is produced, pressure wave is propagated in annular space to underground.Pressure is passed
The pressure signal that sensor collection is reflected by casing coupling, hydrodynamic face, enters computer, and transfer to via data acquisition equipment
Signal transacting and analysis software are post-processed, and obtain box cupling ripple and liquid surface wave.
The utility model can calculate hydrodynamic face deep according to the box cupling ripple and liquid surface wave measured using box cupling method and sound velocity method
Degree.Without tripping in survey tool in the wellbore, it is adaptable to which salt hole air reserved storeroom makes nitrogen/bittern interface monitoring, gas storage during chamber
The operating modes such as storehouse pneumatic sealing test (nitrogen/bittern), gas well annular space (natural gas) with pressure, can calculate temperature in wellbore section, pressure and cut open
Dynamic oil level in face and Sound speed profile, and then the accurate pit shaft of measurement in real time, and existing equipment is unable to reach these effects.
Specific embodiment is applied in the utility model to be set forth principle of the present utility model and embodiment, with
The explanation of upper embodiment is only intended to help and understands method of the present utility model and its core concept；Simultaneously for this area
Those skilled in the art, according to thought of the present utility model, will change in specific embodiments and applications, comprehensive
Upper described, this specification content should not be construed as to limitation of the present utility model.
Claims (7)
1. a kind of pressure acquisition device, for gathering the annular space pressure between wellhead casing pipe and testing tube in salt hole air reserved storeroom cavity
Power, it is characterised in that described device includes：Atmospheric valve, low-pressure chamber, control valve and hyperbaric chamber；Wherein,
One end of described low-pressure chamber is connected by control valve with hyperbaric chamber one end, and the other end of described low-pressure chamber, which is provided with, to be put
Empty valve；
Described hyperbaric chamber is provided with pressure sensor, and the other end in hyperbaric chamber is connected with well head.
2. pressure acquisition device as claimed in claim 1, it is characterised in that described device also includes：Pressure and temp is sensed
Device, is arranged at the hyperbaric chamber.
3. pressure acquisition device as claimed in claim 1, it is characterised in that described device also includes：Pressure gauge, is arranged at
The low-pressure chamber.
4. the pressure acquisition device as described in any claim in claim 1-3, it is characterised in that described pressure sensor is
Microphone.
5. a kind of hydrodynamic gauge for 2-35MPa high-pressure gas wells, it is characterised in that described measurement apparatus includes：
Pressure acquisition device, data acquisition equipment and computer, described pressure acquisition device pass through data acquisition equipment and calculating
Machine is connected；Wherein,
The pressure acquisition device includes：Atmospheric valve, low-pressure chamber, control valve and hyperbaric chamber；
One end of described low-pressure chamber is connected by control valve with hyperbaric chamber one end, and the other end of described low-pressure chamber, which is provided with, to be put
Empty valve, and data acquisition equipment is connected to by the atmospheric valve；
Described hyperbaric chamber is connected provided with collection pressure sensor, the other end in hyperbaric chamber with well head.
6. hydrodynamic gauge as claimed in claim 5, it is characterised in that described pressure acquisition device also includes：Pressure
Power temperature sensor, is arranged at the hyperbaric chamber.
7. hydrodynamic gauge as claimed in claim 6, it is characterised in that described pressure acquisition device also includes：Pressure
Power table, is arranged at the low-pressure chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621443394.9U CN206459712U (en) | 2016-12-27 | 2016-12-27 | A kind of pressure acquisition device and hydrodynamic gauge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621443394.9U CN206459712U (en) | 2016-12-27 | 2016-12-27 | A kind of pressure acquisition device and hydrodynamic gauge |
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| CN206459712U true CN206459712U (en) | 2017-09-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106768157A (en) * | 2016-12-27 | 2017-05-31 | 中国石油天然气集团公司 | A kind of pressure acquisition device, hydrodynamic gauge and method |
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2016
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106768157A (en) * | 2016-12-27 | 2017-05-31 | 中国石油天然气集团公司 | A kind of pressure acquisition device, hydrodynamic gauge and method |
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