CN106197605A - Oil-water interfaces detecting system and the method in chamber is made for salt hole air reserved storeroom - Google Patents
Oil-water interfaces detecting system and the method in chamber is made for salt hole air reserved storeroom Download PDFInfo
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- CN106197605A CN106197605A CN201510221679.1A CN201510221679A CN106197605A CN 106197605 A CN106197605 A CN 106197605A CN 201510221679 A CN201510221679 A CN 201510221679A CN 106197605 A CN106197605 A CN 106197605A
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Abstract
The invention discloses a kind of oil-water interfaces detecting system and method making chamber for salt hole air reserved storeroom.This system includes: sensing device, first signal of telecommunication and second signal of telecommunication is generated in the salt filled in salt hole air reserved storeroom cavity, wherein, first signal of telecommunication is the signal of telecommunication produced under the first predeterminated voltage drives, and second signal of telecommunication is the signal of telecommunication produced under the second predeterminated voltage drives；And detection equipment, for detecting first signal of telecommunication and second signal of telecommunication respectively, to obtain the first testing result and the second testing result respectively, wherein, the first testing result and the second testing result are for determining the interface location of salt and diesel oil.By this invention, solve the problem that the detection accuracy of oil-water interface position is poor in salt hole air reserved storeroom makes chamber, the first testing result and the second testing result is obtained by detection equipment, and then determine the interface location of salt and diesel oil, reach the effect of the accuracy of the detection improving oil-water interface position.
Description
Technical field
The present invention relates to salt hole air reserved storeroom and make chamber technical field, make chamber in particular to one for salt hole air reserved storeroom
Oil-water interfaces detecting system and method.
Background technology
Salt hole air reserved storeroom is made chamber and is referred under certain control condition, and fresh water or unsaturated salt are injected in subterraneous salt deposit,
By dissolving rock salt and discharging salt, thus form the storage area of specific modality in underground.In cavity building process,
Need to make intracavity pipe to subterraneous salt deposit is injected fresh water from pit shaft, after fully dissolving rock salt, then by saliferous
Salt be expelled to ground continuously by making intracavity pipe and the annular space made between the outer tube of chamber, thus realize in subterraneous salt deposit
Form the space of certain volume.In order to ensure that this space has a stable shape, it is necessary to making chamber outer tube and life
Inject the diesel oil as protective layer material in producing the annular space of sleeve pipe and the borehole wall and arrive appointment position, light effectively to control
The scope of water dissolution rock salt, to construct stable cavity form.
In cavity building course, the interface location of diesel oil and salt directly influences the formation of cavity geometry, the most accurately
It is significant that salt hole air reserved storeroom is made chamber engineering by detection diesel oil and the interface location of salt.At present, diesel oil and salt
Interface detection generally use following several method to realize:
(1) method is calculated: calculate and make the annular volume between chamber outer tube and sleeve pipe and make between chamber outer tube and barefoot interval
Annular volume, and then the injection flow arriving desired depth formation oil-water interfaces can be calculated.But, owing to drill bit is at salt
Layer creeps into the aperture of formation and is more than bit diameter, can cause the calculating error of barefoot interval radius.It addition, injection diesel oil
Before, the general long period of soaking of barefoot interval in saturated brine to protect barefoot interval.After diesel oil injects, barefoot interval
In saturated brine continue (lentamente) dissolve borehole wall salt deposit and downwards separate out salt crystalline substance.But this long-term dissolving, analysis
Go out process, necessarily cause the expansion of barefoot interval diameter.For above-mentioned reasons, profit circle can only be determined by calculating method
The approximate location in face, it is difficult to it is accurately positioned.
(2) Pressure gauge monitoring method: during noting diesel oil toward down-hole, along with diesel oil is to the increase of the down-hole migration degree of depth,
Fill cup hydraulic is consequently increased, and by observing the pressure of fill cup hydraulic table, can substantially determine oil-water interface position.But
It is that the oil-water interface position maximum error that therefore the method determines can owing to Pressure gauge readings error is about about 3
Reach 50 meters, it is difficult to realize oil-water interfaces are accurately positioned.
(3) electrical measuring method: be primarily present following defect:
Cost is high；Detection needs to dismantle wellhead component, long construction period every time；Cannot realize many in a panel region
Jing Ji controls test；Oil-water interfaces cannot be monitored the most at any time；The barefoot interval diameter formed due to drill bit is with middle
Pipe different diameters is little (about about 40mm), and the oil-water-layer in both annular space radiuses is the thinnest, and electrical measuring method cannot differentiate two
The difference of person, thus cannot accurately determine the position of oil-water interfaces.
For the problem that in correlation technique, the detection accuracy of oil-water interface position is poor in salt hole air reserved storeroom makes chamber, mesh
Before effective solution is not yet proposed.
Summary of the invention
A kind of oil-water interfaces detecting system and side making chamber for salt hole air reserved storeroom of offer is provided
Method, to solve the problem that the detection accuracy of oil-water interface position is poor in salt hole air reserved storeroom makes chamber.
To achieve these goals, according to an aspect of the invention, it is provided a kind of make chamber for salt hole air reserved storeroom
Oil-water interfaces detecting system.
Making the oil-water interfaces detecting system in chamber for salt hole air reserved storeroom and include according to the present invention: sensing device, for
Generating first signal of telecommunication and second signal of telecommunication in the salt filled in salt hole air reserved storeroom cavity, wherein, first signal of telecommunication is
The signal of telecommunication produced under the first predeterminated voltage drives, second signal of telecommunication is the electricity produced under the second predeterminated voltage drives
Signal；And detection equipment, for detecting first signal of telecommunication and second signal of telecommunication respectively, to obtain the first detection respectively
Result and the second testing result, wherein, the first testing result and the second testing result are for determining the boundary of salt and diesel oil
Position, face.
Further, sensing device includes: base plate；Hard contact, is arranged at the surface of base plate；Diode, is arranged
In base plate interior, one end of diode is connected to hard contact, is used for preventing hard contact generation cell reaction from corroding；
And perseverance source circuit, it being arranged at base plate interior, one end of permanent source circuit is connected to the other end of diode, permanent source circuit
The other end be connected to detection equipment, permanent source circuit is for producing the signal of telecommunication of constant size.
Further, this system also includes: data processing equipment, is connected with detection equipment, for according to the first inspection
Survey result and the second testing result determine the interface location of salt and diesel oil.
Further, permanent source circuit is constant-current source circuit, and constant-current source circuit is the electricity of the current signal producing constant size
Road, the first testing result includes the first current detection value, and the second testing result includes the second current detection value, at data
The reason device difference that is additionally operable to judge between the first current detection value and the second current detection value whether in preset range,
Wherein, if it is judged that the difference between the first current detection value and the second current detection value is in the range of pre-set current value,
The interface location of salt and diesel oil is then determined according to the first current detection value and the second current detection value, if it is judged that the
Difference between one current detection value and the second current detection value not in the range of pre-set current value, is then spaced Preset Time
Again first signal of telecommunication and second signal of telecommunication are detected.
Further, hard contact includes multiple hard contact, and in multiple hard contacts, each hard contact is all connected with one
Individual diode, permanent source circuit includes multiple permanent source circuit, and in multiple permanent source circuits, one end of each permanent source circuit is all connected with
One diode, in multiple permanent source circuits, the other end of each permanent source circuit is parallel to parallel line, and this system also includes:
Cable, one end of cable is connected to detection equipment；And cable connectors, it being arranged at the surface of base plate, cable connects
One end of part is connected with parallel line, and the other end of cable connectors is connected with the other end of cable.
Further, multiple hard contact longitudinal direction spaced sets are in the surface of base plate.
Further, according to the first testing result and the second testing result, data processing equipment is for determining that multiple metal touches
The number of the hard contact being in point in salt, and determine salt according to the number of the hard contact being in salt
Interface location with diesel oil.
Further, detection equipment includes: the first power supply, is connected with sensing device, presets electricity for producing first
Pressure；Second source, is connected with sensing device, for producing the second predeterminated voltage；And ammeter, with sensing dress
Put and be connected, for detecting first signal of telecommunication and second signal of telecommunication respectively.
To achieve these goals, according to a further aspect in the invention, it is provided that a kind of make chamber for salt hole air reserved storeroom
Oil-water interfaces detection method.
Making the oil-water interfaces detection method in chamber for salt hole air reserved storeroom and include according to the present invention: detect the first telecommunications respectively
Number and second signal of telecommunication, to obtain the first testing result and the second testing result respectively, wherein, first signal of telecommunication for pass
The salt that induction device is filled in salt hole air reserved storeroom cavity is driven the signal of telecommunication produced, the second electricity by the first predeterminated voltage
Signal be the salt that sensing device is filled in salt hole air reserved storeroom cavity effect under by second predeterminated voltage drive produce
The signal of telecommunication；And the interface location of salt and diesel oil is determined according to the first testing result and the second testing result.
Further, the first testing result includes that the first current detection value, the second testing result include the second current detecting
According to the first testing result and the second testing result, value, determines that the interface location of salt and diesel oil includes: judge the first electricity
Whether the difference between stream detected value and the second current detection value is in the range of pre-set current value；If it is judged that the first electricity
Difference between stream detected value and the second current detection value is in the range of pre-set current value, then according to the first current detection value
With the interface location that the second current detection value determines salt and diesel oil；And if it is judged that the first current detection value and
Difference between two current detection values is not in the range of pre-set current value, then interval Preset Time detects the first telecommunications again
Number and second signal of telecommunication.
By the present invention, use the system including following equipment: sensing device, for filling out in salt hole air reserved storeroom cavity
Generating first signal of telecommunication and second signal of telecommunication in the salt filled, wherein, first signal of telecommunication is to drive at the first predeterminated voltage
The signal of telecommunication of lower generation, second signal of telecommunication is the signal of telecommunication produced under the second predeterminated voltage drives；And detection equipment,
For detecting first signal of telecommunication and second signal of telecommunication respectively, to obtain the first testing result and the second testing result respectively,
Wherein, the first testing result and the second testing result, for determining the interface location of salt and diesel oil, solve in salt cave
Gas storage makes the problem that in chamber, the detection accuracy of oil-water interface position is poor, and then obtains the first inspection by detection equipment
Survey result and the second testing result, wherein, determine salt and diesel oil according to the first testing result and the second testing result
Interface location, has reached the effect of the accuracy of the detection improving oil-water interface position.
Accompanying drawing explanation
The accompanying drawing of the part constituting the application is used for providing a further understanding of the present invention, and the present invention's is schematic real
Execute example and illustrate for explaining the present invention, being not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the signal of the oil-water interfaces detecting system making chamber for salt hole air reserved storeroom according to a first embodiment of the present invention
Figure；
Fig. 2 is the profit of the oil-water interfaces detecting system making chamber for salt hole air reserved storeroom according to a first embodiment of the present invention
The schematic diagram of Interface detection；
Fig. 3 is the sensing of the oil-water interfaces detecting system making chamber for salt hole air reserved storeroom according to a first embodiment of the present invention
The schematic diagram of device；
Fig. 4 is the sensing of the oil-water interfaces detecting system making chamber for salt hole air reserved storeroom according to a first embodiment of the present invention
The circuit theory diagrams of device；
Fig. 5 is the detection of the oil-water interfaces detecting system making chamber for salt hole air reserved storeroom according to a first embodiment of the present invention
The circuit theory diagrams of equipment；
Fig. 6 is the signal of the oil-water interfaces detecting system making chamber for salt hole air reserved storeroom according to a second embodiment of the present invention
Figure；And
Fig. 7 is the flow chart of the oil-water interfaces detection method making chamber for salt hole air reserved storeroom according to embodiments of the present invention.
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment can phases
Combination mutually.Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
In order to make those skilled in the art be more fully understood that the application scheme, below in conjunction with in the embodiment of the present application
Accompanying drawing, is clearly and completely described the technical scheme in the embodiment of the present application, it is clear that described embodiment
It is only the embodiment of the application part rather than whole embodiments.Based on the embodiment in the application, ability
The every other embodiment that territory those of ordinary skill is obtained under not making creative work premise, all should belong to
The scope of the application protection.
It should be noted that term " first " in the description and claims of this application and above-mentioned accompanying drawing, "
Two " it is etc. for distinguishing similar object, without being used for describing specific order or precedence.Should be appreciated that this
The data that sample uses can be exchanged in the appropriate case, in order to embodiments herein described herein.Additionally, term
" include " and " having " and their any deformation, it is intended that cover non-exclusive comprising, such as, comprise
The process of series of steps or unit, method, system, product or equipment are not necessarily limited to those steps clearly listed
Rapid or unit, but can include that the most clearly list or intrinsic for these processes, method, product or equipment
Other step or unit.
Below according to the embodiment of the present invention, it is provided that a kind of oil-water interfaces detecting system making chamber for salt hole air reserved storeroom.
Fig. 1 is the signal of the oil-water interfaces detecting system making chamber for salt hole air reserved storeroom according to a first embodiment of the present invention
Figure.As it is shown in figure 1, this system includes: sensing device 10 and detection equipment 20.
Sensing device 10, generates first signal of telecommunication and the second telecommunications in the salt filled in salt hole air reserved storeroom cavity
Number, wherein, first signal of telecommunication is the signal of telecommunication produced under the first predeterminated voltage drives, and second signal of telecommunication is second
Predeterminated voltage drives the lower signal of telecommunication produced.
Detection equipment 20, for detecting first signal of telecommunication and second signal of telecommunication respectively, to obtain the first testing result respectively
With the second testing result, wherein, the first testing result and the second testing result are for determining the position, interface of salt and diesel oil
Put.
Above-mentioned sensing device 10 produces two signals of telecommunication under the first predeterminated voltage and the second predeterminated voltage respectively, and detection sets
Standby 20 for the detection above-mentioned two signal of telecommunication respectively, to obtain the first testing result and the second testing result, according to first
Testing result and the second testing result may determine that the interface location of salt and diesel oil.In view of oil-water interfaces detecting system
During running, owing to sensing equipment exists salt fouling membrane in down-hole, or damage equiprobable fault of leaking electricity,
Therefore, the signal of telecommunication that sensing device 10 single generates is likely that there are bigger error, such as, it may be possible at sensing dress
The signal of telecommunication generated when putting 10 generation salt fouling membrane, the position, interface of the salt obtained based on such testing result and diesel oil
It is inaccurate for putting.Therefore, the oil-water interfaces detecting system making chamber for salt hole air reserved storeroom according to embodiments of the present invention
Generating two signals of telecommunication under twin voltage by sensing device 10, the testing result corresponding by two signals of telecommunication determines
Salt and the interface location of diesel oil.
Such as, determine that the interface location of salt and diesel oil can pass through by the first testing result and the second testing result
Such a way realizes: judge whether the difference of the first testing result and the second testing result is less than preset value, if less than
This preset value, then illustrate that the error of the first testing result and the second testing result is less, it is believed that above-mentioned testing result is
Accurately, therefore, it can utilize above-mentioned testing result (or one of them testing result) to determine salt and bavin
The interface location of oil.
Generate in the first moment it should be noted that first signal of telecommunication can be controlled, control second signal of telecommunication when second
Carve and generate, the first moment and the second time at intervals preset time period.
In an optional embodiment, sensing device 10 includes: base plate；Hard contact, is arranged at the surface of base plate；
Diode, is arranged at base plate interior, and one end of diode is connected to hard contact, is used for preventing hard contact from electricity occurring
Solve reaction corrosion；And perseverance source circuit, it being arranged at base plate interior, one end of permanent source circuit is connected to another of diode
End, the other end of permanent source circuit is connected to detection equipment 20, and permanent source circuit is for producing the signal of telecommunication of constant size.
In the oil-water interfaces detecting system making chamber for salt hole air reserved storeroom according to embodiments of the present invention, sensing device 10 can
It is set to longer longitudinal length, to realize bigger oil-water interfaces detection depth bounds.Such as, sensing device 10
Length can be 3 meters.Above-mentioned permanent source circuit can be constant-current source circuit, for producing the electric current of constant size.Metal
Contact can be rustless steel contact.
In an optional embodiment, this system also includes: data processing equipment, is connected with detection equipment 20,
For determining the interface location of salt and diesel oil according to the first testing result and the second testing result.
In an optional embodiment, permanent source circuit is constant-current source circuit, and constant-current source circuit is to produce constant size
The circuit of current signal, the first testing result includes that the first current detection value, the second testing result include the second electric current inspection
Measured value, whether the difference that data processing equipment is additionally operable to judge between the first current detection value and the second current detection value exists
In preset range, wherein, if it is judged that the difference between the first current detection value and the second current detection value is being preset
In current value range, then determine the interface location of salt and diesel oil according to the first current detection value and the second current detection value,
If it is judged that the difference between the first current detection value and the second current detection value is not in the range of pre-set current value, then
Interval Preset Time detects first signal of telecommunication and second signal of telecommunication again.
In the above-described embodiments, by judging that whether difference between the first current detection value and the second current detection value exists
In preset range, can know twice and detect whether to there is bigger measurement error, if there is bigger measurement error,
Then illustrate that the sensing device 10 of down-hole there occurs salt fouling membrane, or there occurs the faults such as electric leakage, it is therefore desirable to first arrange
Except fault, salt and the interface location of diesel oil accurately could be obtained.If the first current detection value and the inspection of the second electric current
Error between measured value is less (in preset range), then illustrate that current detected status is accurately, can be according to inspection
Survey result and calculate salt and the interface location of diesel oil.
In an optional embodiment, hard contact includes multiple hard contact, each metal in multiple hard contacts
Contact is all connected with a diode, and permanent source circuit includes multiple permanent source circuit, each permanent source circuit in multiple permanent source circuits
One end be all connected with a diode, in multiple permanent source circuits, the other end of each permanent source circuit is parallel to parallel line,
This system also includes: cable, and one end of cable is connected to detection equipment 20；And cable connectors, it is arranged at base plate
Surface, one end of cable connectors is connected with parallel line, the other end of cable connectors and the other end of cable
It is connected.
Such as, sensing device 10 has 10 rustless steel contacts, i.e. 10 test points, each two rustless steel contact phase
Away from 30 centimetres.Impact oil-water interfaces detection caused by the salt fouling membrane of sensing device 10 due to salt and sensing
The detection rustless steel contact number (i.e. test point number) that device 10 has is directly proportional.Therefore, said structure feature can
Ensureing on the premise of meeting certainty of measurement, reducing down-hole salt as far as possible affects the salt fouling membrane of sensing device 10.
In an optional embodiment, multiple hard contact longitudinal direction spaced sets are in the surface of base plate.
Specifically, the base plate of sensing device 10 is arranged along making chamber outer tube outer wall, the longitudinal direction of the base plate of sensing device 10 with
Make chamber outer tube outer wall parallel, multiple hard contacts that the base plate of sensing device 10 includes along the longitudinal arrangement of base plate, and etc.
The surface being arranged at base plate of spacing.
In the above-described embodiments, data processing equipment is for determining multiple according to the first testing result and the second testing result
The number of the hard contact being in hard contact in salt, and the number according to the hard contact being in salt is true
Determine the interface location of salt and diesel oil.
Such as, in sensing device 10, the size of current of constant-current source circuit is 5mA, and sensing device 10 is arranged at down-hole
Predetermined depth position, the current value of detection equipment 20 display and the relation of the number of the hard contact being positioned in salt
For: the current value of the detection equipment 20 display product equal to 5mA with the number of the hard contact being positioned in salt, because of
This can be true according to the first testing result (the first current detection value) and the second testing result (the second current detection value)
The number of the hard contact being surely in salt.Afterwards, due to sensing device 10 in the degree of depth of down-hole it is known that the most again
Number according to the hard contact being in salt just may determine that the interface location of salt and diesel oil.
In an optional embodiment, detection equipment 20 includes: the first power supply, is connected with sensing device 10,
For producing the first predeterminated voltage；Second source, is connected with sensing device 10, for producing the second predeterminated voltage；
And ammeter, it is connected with sensing device 10, for detecting first signal of telecommunication and second signal of telecommunication respectively.
It should be noted that detection equipment 20 also includes the 3rd power supply for ammeter energy supply.It addition, detection equipment
20 can also include a voltmeter, and for detection the first power supply and the output voltage of second source, and one is electricity
4th power supply of pressure table energy supply.The oil-water interfaces detecting system making chamber for salt hole air reserved storeroom according to embodiments of the present invention
Owing to detection equipment 20 uses ammeter, voltmeter show twice measurement electric current respectively and measure voltage, certainty of measurement is high,
Can accurately measure underground oil-water interface.
Can arrange the power supply driving sensing device 10 work in detection equipment 20, detection according to embodiments of the present invention sets
The power supply of two driving sensing device 10 work can be set in standby 20, preset for producing the first predeterminated voltage and second
Voltage.Ammeter in detection equipment 20 is for detecting the signal of telecommunication that sensing device 10 generates.
First power supply, second source can all use 9V packed cell, and measuring circuit power consumption is little, adapt to China's salt cave
Gas storage makes the working environment of the current AC-less power in working site, chamber.It addition, this system can include for above-mentioned ammeter
3rd power supply of power supply, detects the voltmeter of the output voltage of the first power supply and second source, and supplies for this voltmeter
4th power supply of electricity.3rd power supply and the 4th power supply the most all can use 9V packed cell.
In an optional embodiment, sensing device 10 is sensor (can be multiple), by resin based insulation material
Material manufactures, long 3 meters, and long semi-cylindrical is fixedly mounted on and makes outside the outer tube of chamber.Every sensor internal has 10 perseverances
Flow valuve is 5 milliamperes, the constant-current source circuit of one end parallel connection.All constant-current source circuit other ends connect a guarantor the most respectively
Protect the negative terminal of diode, the anode of protected diode connect the most respectively installation on a sensor, each other etc. between
Away from the bottom for the circular rustless steel contact of 30 centimetres.The rustless steel contact of protection diode protection sensor avoids electrolysis
Reaction corrosion.Rustless steel contact is disc, diameter 10 millimeters, is embedded in the sensing being made up of resin based insulation material
On the surface of device, directly can contact with measured medium diesel oil or salt.One end of sensor has a cable to connect sealing
Device.Cable connects sealing device for being tightly connected between sensor and single armored cable.Sensor thickness is little
In 20 millimeters, can smoothly under enter between intervalve and sleeve pipe in the annular space of 20 millimeters.The sealing of resin based sensor is resistance to
Pressure is more than 25MPa.The sensor detection underground work degree of depth is more than 2500 meters.Sensor is installed during going into the well, root
According to making chamber engineering design requirements, being installed by sensor goes into the well to makes a reservation for make chamber height and position.Sensor is installed after going into the well,
It is measured medium between rustless steel contact and barefoot interval on sensor.Measured medium type depends on that diesel oil injects the degree of depth,
Or be the diesel oil of insulator, or it is the salt of conductor.
In an optional embodiment, detection equipment 20 is by digital electronic ammeter (with above-mentioned ammeter), digital voltage
Table, measurement press button, measure voltage selecting switch, electric fuse, the working power of digital electronic ammeter, digital voltage
Power supply (with above-mentioned second source) is measured in the working power of table, the first measurement power supply (with above-mentioned first power supply) and second
Constitute.Digital electronic ammeter range is 200mA.Digital voltmeter range is 20V.Electric fuse is 200mA.Numeral electricity
The working power of stream table, the working power of digital voltmeter, the first measurement power supply and second are measured power supply and are all used 9V
Packed cell.The working power of digital electronic ammeter, the negative terminal of working power of digital voltmeter are connected respectively to numeral electricity
Stream table, the negative terminal of digital voltmeter.First measures power supply, the second measurement power sources in series connection, is selected by measuring voltage
Switch selects output-9V low pressure measurement voltage or-18V high-tension measurement voltage, through measuring press button, electric fuse, number
Word current table is connected to the earth.The earth is for measuring a part for return passage.-9V measures voltage or-18V measures voltage
Negative terminal order core armored cable heart yearn.Single armored cable heart yearn is connected with sensor.Digital voltmeter display is measured
Voltage selecting switch select 9V or 18V time measurement voltage, with monitor the first measurement power supply and second measure power supply be
No it is in normal operating conditions.Electric current, the Applied Digital ammeter when oil-water interfaces detect are measured in digital electronic ammeter display
The measurement Current calculation oil-water interfaces of display.Measure press button and have three pairs of normally opened contacts, be used for for a pair connecting numeral electricity
The working power of stream table, for connecting the working power of digital voltmeter, is used for for a pair selecting to open by measurement voltage for a pair
Close-9V low pressure measurement the voltage selected or-18V high-tension measurement voltage accesses oil-water interfaces and measures loop, it is achieved downhole oil
The measurement of water termination.Measure press button there is the working power of the detection equipment 20 being also turned on being positioned at ground and be positioned at
The function of the power supply of the sensing device 10 of down-hole.Furthermore it is possible to start detecting system work by manually pressing the button,
Release button controls detecting system power-off to quit work, and aforesaid way makes the detection of each oil-water interfaces only need the several seconds
Can complete.Due to the number caused that do not shuts down in time when press button working method is possible not only to avoid use regular tap
The electric energy of the working power of word current table or the working power of digital voltmeter exhausts rapidly, more can avoid using commonly
Switch owing to shutdown in time does not causes the sensing device 10 in the hot environment of down-hole to be in conductivity detection work shape for a long time
State so that the thermal accumlation that in sensing device 10, electronic device produces heats up and causes sensing device 10 to damage.
It should be noted that during going into the well due to sensing device 10 installation, sensing device 10 is in salt all the time,
Therefore sensing device 10 there may exist the company of sealing between damage electric leakage or single armored cable heart yearn and sensing device 10
Connecing the phenomenon that there is electric leakage, the leak current fault of two kinds of forms can increase the weight of along with the increase of sensing device 10 depth of falling well,
Must find in time to get rid of, in order to avoid causing detecting system to be gone into the well install failure.The above two form of sensing device 10
The presence or absence of leak current fault, can carry out detection 100 meters of brine depth scopes by applying detection equipment 20 and find.
The first predeterminated voltage can be selected, and connect measure loop, detect；Re-use the second predeterminated voltage, and connect
Measure loop, detects.Assume that measuring electric current is respectively Ic1 and Ic2 twice.If there is no above two form
Leak current fault, twice measure electric current Ic1=Ic2.If there is the leak current fault of above two form, twice measurement electricity
Stream Ic2 ＞ Ic1.During sensing device 10 is gone into the well, if there is Ic2 ＞ Ic1, then sensing device need to be proposed from down-hole
10, change sensing device 10 or re-start and be tightly connected between single armored cable heart yearn and sensing device 10, with
Eliminate electric leakage.Owing to using the first predeterminated voltage and the detection of the second predeterminated voltage, therefore can find in time and get rid of leakage
Electric fault, thus ensure that security of system is installed and go into the well.
Such as, sensing device 10 includes 10 constant current voltage sources, and the current value of each constant current voltage source is
5mA, if Ic1=Ic2=5mA × 10=50mA, then illustrates not exist the leak current fault of above two form；If
Ic2 ＞ Ic1 ＞ 50mA, then there is the leak current fault in above two form in explanation.
It should be noted that after desired depth of going into the well installed by sensing device 10, diesel oil need to be injected to sensing device 10
On the depth location that determines.During oiling, when noted diesel oil is up to predetermined depth location, use this
The detecting system of bright embodiment detects.Such as, sensing device 10 includes 10 constant current voltage sources, and often
The current value of individual constant current voltage source is 5mA, then measuring electric current when starting to detect is 50mA.In the process that diesel oil injects
In, diminish suddenly if measuring electric current, then should control to reduce oil injecting speed, when oil-water interfaces arrive predetermined degree of depth position
Put, measure electric current be shown as 5mA × n (n is the rustless steel number of contacts that oil-water interfaces requirement is in salt, n is 0,
1,2,3,4,5,6,7,8,9 or 10), time, should control to stop oiling.It addition, at daily oil-water interfaces
During detection, if requiring that the measurement electric current reached is 5mA × n (n is the rustless steel number of contacts that requirement is in salt),
If then measuring electric current to be less than 5mA × n, illustrating that oil-water interfaces are on the low side, should control to drain the oil to from well, until measuring electricity
Stream is 5mA × n；If measuring electric current to be more than 5mA × n, illustrating that oil-water interfaces are higher, should control in well head oiling, directly
It is 5mA × n to measuring electric current.
It addition, when restarting after sensing device 10 is chronically in salt immersion to use, due to sensing device 10
Being chronically in salt immersion, its surface has been capped one layer of salt film, in all rustless steel contacts and make between the outer tube of chamber
Form conductive channel, between rustless steel contact and the earth, i.e. form conductive channel.When sensing device 10 surface is by diesel oil
During covering, detection electric current is not equal to zero, thus may maybe will sense on the surface of sensing device 10 by erroneous judgement oil-water interfaces
The oil-water interfaces of the lower on device 10 surface are mistaken for the oil-water interfaces of eminence.In order to whether distinguish on sensing device 10
There is salt fouling membrane, the first predeterminated voltage and the second predeterminated voltage can be used to detect respectively.In the case of two kinds
Detection electric current is identical, illustrates not exist on sensing device 10 salt fouling membrane, and the detection electric current of twice is effectively survey
Value.Detection electric current in the case of two kinds, illustrates to exist on sensing device 10 salt fouling membrane.In the case,
If the difference of the detection electric current in the case of two kinds is less than the constant current value of a constant-current source circuit, salt fouling membrane is described
Not affecting certainty of measurement, removed constant current value round numbers again by measuring electric current, can calculate sensing device 10 surface is halogen
The rustless steel contact number that water covers, and then calculate the depth location on sensing device 10 of oil-water interfaces.When two
The difference of the detection electric current in the case of Zhong is more than the constant current value of a constant-current source circuit, then explanation salt fouling membrane is
Have influence on normal measurement, therefore can not determine deep on sensing device 10 of oil-water interfaces according to above-mentioned detection current value
Degree position.In this case, due to the decontamination of diesel oil, sensing device 10 is in the salt film during diesel oil soaks,
Can gradually be dissolved by diesel oil after a period of time, precipitate and disappear.Detection electric current in the case of once detection finds two kinds
Difference, less than the constant current value of a constant-current source circuit, can recover normal oil-water interfaces detection function.
Making the oil-water interfaces detecting system in chamber for salt hole air reserved storeroom and utilize the twin voltage detection can according to embodiments of the present invention
Find that sensing device 10 installation exists during going into the well in time damage electric leakage or single armored cable heart yearn L and sense dress
Put and between 10, be tightly connected faults such as there is electric leakage, thus can take measures in time to be got rid of；Twin voltage is utilized to detect
Can identify that state and pollution detection state are normally detected in underground oil-water interface, it is achieved the accurate measurement at underground oil-water interface；
Use press button working method, the ammeter being possible not only to avoid to use regular tap to cause owing to not shutting down in time
Working power, the electric energy of working power of voltmeter exhaust rapidly, more can avoid using regular tap owing to closing the most in time
Machine causes the sensing device 10 in the hot environment of down-hole to be in conductivity detection duty for a long time so that sensing device
The thermal accumlation intensification that in 10, electronic device produces causes the problem that sensing device 10 damages.
According to the oil-water interfaces detecting system making chamber for salt hole air reserved storeroom of this inventive embodiments, owing to including: sensing
Device 10, generates first signal of telecommunication and second signal of telecommunication in the salt filled in salt hole air reserved storeroom cavity, wherein,
First signal of telecommunication is the signal of telecommunication produced under the first predeterminated voltage drives, and second signal of telecommunication is for drive at the second predeterminated voltage
The dynamic lower signal of telecommunication produced；And detection equipment 20, for detecting first signal of telecommunication and second signal of telecommunication respectively, to divide
Not obtaining the first testing result and the second testing result, wherein, the first testing result and the second testing result are used for determining
Salt and the interface location of diesel oil, solve the detection accuracy of oil-water interface position in salt hole air reserved storeroom makes chamber poor
Problem, and then obtain the first testing result and the second testing result by detection equipment 20, wherein, according to the first inspection
Survey result and the second testing result determine the interface location of salt and diesel oil, have reached to improve the detection of oil-water interface position
The effect of accuracy.
Fig. 2 is the profit of the oil-water interfaces detecting system making chamber for salt hole air reserved storeroom according to a first embodiment of the present invention
The schematic diagram of Interface detection.As in figure 2 it is shown, this system includes: ground detector and detection sensor.
Specifically, it is by making intracavity pipe continuously to salt deposit water filling that salt hole air reserved storeroom makes the process in chamber, dissolves salt deposit, then
The salt of saliferous is expelled to ground continuously by making intracavity pipe and the annular space made between the outer tube of chamber, reaches to make in salt deposit
The purpose in chamber.In order to control salt deposit dissolves the cavity geometry that salt deposit is formed, need to be in making the chamber outer tube annular space with the borehole wall
Inject diesel oil and arrive the desired depth in salt deposit.Salt deposit solubilized under this degree of depth, salt deposit more than this degree of depth then will not
Dissolve, thus formed in salt deposit and make the cavity of reservation shape in the design of chamber.In this embodiment, in order to diesel oil is injected
To desired depth position, make in desired depth position and on the outer tube outer wall of chamber, be provided with detection sensor, detection sensor with
Between barefoot interval for measured medium (measured medium type depends on the degree of depth that diesel oil injects, or is the diesel oil of insulator,
Or be the salt of conductor).Ground is provided with ground detector, is connected with detection sensor by single armored cable,
For receiving the signal of telecommunication that detection sensor generates, and then the degree of depth of the diesel oil of detection injection, to ensure that safety makes chamber.
In this embodiment, detection sensor has 3 meters of length, has the advantages that oil-water interfaces detection depth bounds is bigger, can expire
Foot salt hole air reserved storeroom is made chamber and is required one section of well depth large range of oil-water interfaces testing requirement.
It should be noted that the sensing device 10 in embodiment illustrated in fig. 1 can be sensed by the detection in this embodiment
Device realizes, and the detection equipment 20 in embodiment illustrated in fig. 1 can be realized by the ground detector in this embodiment.
Fig. 3 is the sensing of the oil-water interfaces detecting system making chamber for salt hole air reserved storeroom according to a first embodiment of the present invention
The schematic diagram of device.As it is shown on figure 3, this sensing device by polymer matrix composites base plate and is inlayed and is solidified table thereon
The rustless steel contact in face is constituted.One end of sensing device is provided with cable seal connector, and cable seal connector is used for
It is connected with armored cable.Sensing device length 3 meters, wide 40 millimeters, thick 16 millimeters.A diameter of the 10 of rustless steel contact
Millimeter.Spacing between two rustless steel contacts is 200 millimeters.10 rustless steel contacts it are provided with altogether on sensing device.
Fig. 4 is the sensing of the oil-water interfaces detecting system making chamber for salt hole air reserved storeroom according to a first embodiment of the present invention
The circuit theory diagrams of device.As shown in Figure 4, sensing device by polymer matrix composites base plate and inlays solidification thereon
10 rustless steel contacts on surface are constituted.Sensing device is connected by cable seal connector with single armored cable L.
Round bar portion, rustless steel contact, cable connectors base are all inlayed and are solidificated on polymer matrix composites base plate；10 protections
Connection wire between diode, 10 constant-current source circuits, sensing device internal bus and all devices by with base plate with
The filled covering of polymer matrix composites of class.Protection two pole of its correspondence of termination of 10 constant-current source circuits on circuit
The negative terminal of pipe, the also line of all internal with the sensing device constant-current source circuit of the other end is connected.Protection diode anode with not
Rust steel contact is connected.The also line of internal constant-current source circuit is connected with cable seal connector.When rustless steel contact is bavin
Oil is covered, and no current flows into constant-current source circuit from the earth；When rustless steel contact is covered by salt, electric current is from the earth
Flow into constant-current source circuit.
Fig. 5 is the detection of the oil-water interfaces detecting system making chamber for salt hole air reserved storeroom according to a first embodiment of the present invention
The circuit theory diagrams of equipment.As it is shown in figure 5, detection equipment is by digital electronic ammeter M1 (range is 200mA), numeral
Voltmeter M2 (range is 20V), measurement button switch K 1, measure voltage selecting switch K2, electric fuse F1, number
Working power E1 of word current table M1, working power E2 of digital voltmeter M2, measurement power supply E3 and measurement electricity
Source E4 is constituted.Wherein, working power E1 of digital electronic ammeter M1, working power E2 of digital voltmeter M2,
The voltage that measuring power supply E3 and measurement power supply E4 provides is 9V.Two measure ends anode by make chamber outer tube with
The earth is connected, and negative terminal is connected with single armored cable L heart yearn.
Specifically, measure power supply E3 or measure one end connection single armored cable L heart yearn of power supply E4, measuring electricity
One end of source E3 or the other end of measurement power supply E4 and measurement voltage selecting switch K2 is connected, and measures voltage choosing
The other end selecting switch K2 is connected with the one end measuring button switch K 1, and this end measuring button switch K 1 also may be used
To be connected to one end or one end of digital voltmeter M2 of digital electronic ammeter M1, measure another of button switch K 1
End is connected to working power E1 or working power E2 of digital voltmeter M2 of digital electronic ammeter M1, numeral electricity
The other end of stream table M1 is connected to the earth or one end of electric fuse F1, and the other end of electric fuse F1 is connected to measure
Button switch K 1.
It should be noted that the first predeterminated voltage in embodiment illustrated in fig. 1 can be by the measurement electricity in this embodiment
Source E3 generates, and the second predeterminated voltage (or can measure power supply E3 by measurement power supply E4 in this embodiment
Connect with measuring power supply E4) generate.
Fig. 6 is the signal of the oil-water interfaces detecting system making chamber for salt hole air reserved storeroom according to a second embodiment of the present invention
Figure.As shown in Figure 6, this system is made up of ground checkout equipment M, single armored cable L, detection sensor D.
Specifically, ground checkout equipment M is by digital electronic ammeter M1 (range is 200mA), digital voltmeter M2
(range is 20V), measurement button switch K 1, measure voltage selecting switch K2, electric fuse F1, digital electronic ammeter
Working power E1 of M1, working power E2 of digital voltmeter M2, measurement power supply E3 and measurement power supply E4 are constituted.
Wherein, working power E1 of digital electronic ammeter M1, working power E2 of digital voltmeter M2, measurement power supply E3
It is 9V with the voltage measuring power supply E4 offer.Measure the anode of end for two to be connected with the earth by making chamber outer tube, negative
End is connected with single armored cable L heart yearn.Detection sensor D by polymer matrix composites base plate and inlays and is solidificated in it
10 rustless steel contact C of upper surface are constituted.Detection sensor D and single armored cable L is by cable seal even
Fitting is connected.10 protection diode d, 10 constant-current source circuit H, constant-current source circuit H parallel wire internal bus and
Wire is connected by polymer matrix composites the filled covering similar with base plate between all devices.Carry out oil-water interfaces inspection
During survey, when rustless steel contact is covered by diesel oil, no current flows into constant-current source circuit H from the earth；When rustless steel contact
Being covered by salt, electric current flows into constant-current source circuit from the earth, and ground checkout equipment M can detect and calculate underground oil-water
Interface depth.
It should be noted that sensing device 10 can be realized by the detection sensor D in this embodiment in Fig. 1,
Detection equipment 20 can be realized by the ground checkout equipment M in this embodiment.
Below according to embodiments of the invention, improve a kind of oil-water interfaces detection method making chamber for salt hole air reserved storeroom.
It should be noted that according to embodiments of the present invention make the oil-water interfaces detecting system in chamber for salt hole air reserved storeroom can
For the oil-water interfaces detection method making chamber for salt hole air reserved storeroom performed according to embodiments of the present invention, according to this
Bright embodiment make the oil-water interfaces detection method in chamber for salt hole air reserved storeroom can also be by according to embodiments of the present invention
The oil-water interfaces detecting system making chamber for salt hole air reserved storeroom performs.
Fig. 7 is the flow chart of the oil-water interfaces detection method making chamber for salt hole air reserved storeroom according to embodiments of the present invention.
As it is shown in fig. 7, the method includes that steps S102 is to step S104.
Step S102, detects first signal of telecommunication and second signal of telecommunication respectively, to obtain the first testing result and second respectively
Testing result, wherein, first signal of telecommunication is pre-by first in the salt that sensing device is filled in salt hole air reserved storeroom cavity
If voltage drives the signal of telecommunication produced, second signal of telecommunication is the salt that sensing device is filled in salt hole air reserved storeroom cavity
Driven the signal of telecommunication produced by the second predeterminated voltage under effect.
This step can be realized by the sensing device 10 shown in Fig. 1 and detection equipment 20.
Step S104, determines the interface location of salt and diesel oil according to the first testing result and the second testing result.
It should be noted that this step can be realized by the data processing equipment in the alternative embodiment in Fig. 1,
Can also be by artificially calculating realization.
In an optional embodiment, the first testing result includes that the first current detection value, the second testing result include
According to the first testing result and the second testing result, second current detection value, determines that the interface location of salt and diesel oil includes:
Judge that the difference between the first current detection value and the second current detection value is whether in the range of pre-set current value；If sentenced
The difference between the first current detection value and the second current detection value of breaking is in the range of pre-set current value, then according to first
Current detection value and the second current detection value determine the interface location of salt and diesel oil；And if it is judged that the first electric current
Difference between detected value and the second current detection value is not in the range of pre-set current value, then interval Preset Time is examined again
Survey first signal of telecommunication and second signal of telecommunication.
The oil-water interfaces detection method making chamber for salt hole air reserved storeroom according to embodiments of the present invention, owing to including: respectively
Detect first signal of telecommunication and second signal of telecommunication, to obtain the first testing result and the second testing result respectively, wherein, the
One signal of telecommunication is to be driven, by the first predeterminated voltage, the electricity produced in the salt that sensing device is filled in salt hole air reserved storeroom cavity
Signal, second signal of telecommunication be the salt that sensing device is filled in salt hole air reserved storeroom cavity effect under by second preset electricity
Pressure drives the signal of telecommunication produced；And the interface of salt and diesel oil is determined according to the first testing result and the second testing result
Position, solves the problem that the detection accuracy of oil-water interface position is poor in salt hole air reserved storeroom makes chamber, and then passes through
Obtain the first testing result and the second testing result, and according to the first testing result and the second testing result determine salt and
The interface location of diesel oil, has reached the effect of the accuracy of the detection improving oil-water interface position.
It should be noted that can be at such as one group of computer executable instructions in the step shown in the flow chart of accompanying drawing
Computer system performs, and, although show logical order in flow charts, but in some cases, can
With to be different from the step shown or described by order execution herein.
Obviously, those skilled in the art should be understood that each module of the above-mentioned present invention or each step can be with general
Calculating device realize, they can concentrate on single calculating device, or is distributed in multiple calculating device institute
On the network of composition, alternatively, they can realize with calculating the executable program code of device, it is thus possible to
It is stored in storing in device and is performed by calculating device, or they are fabricated to respectively each integrated circuit die
Block, or the multiple modules in them or step are fabricated to single integrated circuit module realize.So, the present invention
It is not restricted to any specific hardware and software combine.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, made
Any modification, equivalent substitution and improvement etc., should be included within the scope of the present invention.
Claims (10)
1. the oil-water interfaces detecting system making chamber for salt hole air reserved storeroom, it is characterised in that including:
Sensing device, generates first signal of telecommunication and the second electricity in the salt filled in salt hole air reserved storeroom cavity
Signal, wherein, described first signal of telecommunication is the signal of telecommunication produced under the first predeterminated voltage drives, described second
The signal of telecommunication is the signal of telecommunication produced under the second predeterminated voltage drives；And
Detection equipment, for detecting described first signal of telecommunication and described second signal of telecommunication respectively, to obtain the respectively
One testing result and the second testing result, wherein, described first testing result and described second testing result are used for
Determine the interface location of described salt and diesel oil.
System the most according to claim 1, it is characterised in that described sensing device includes:
Base plate；
Hard contact, is arranged at the surface of described base plate；
Diode, is arranged at described base plate interior, and one end of described diode is connected to described hard contact, uses
Corrode in preventing described hard contact generation cell reaction；And
Permanent source circuit, is arranged at described base plate interior, and one end of described permanent source circuit is connected to described diode
The other end, the other end of described permanent source circuit is connected to described detection equipment, and described permanent source circuit is used for producing perseverance
The signal of telecommunication of sizing.
System the most according to claim 2, it is characterised in that described system also includes:
Data processing equipment, is connected with described detection equipment, for according to described first testing result and described
Second testing result determines the interface location of described salt and diesel oil.
System the most according to claim 3, it is characterised in that described permanent source circuit is constant-current source circuit, described perseverance
Current source circuit is the circuit of the current signal producing constant size, and described first testing result includes the first electric current inspection
Measured value, described second testing result includes that the second current detection value, described data processing equipment are additionally operable to judge institute
State the difference between the first current detection value and described second current detection value whether in preset range,
Wherein, if it is judged that the difference between described first current detection value and described second current detection value exists
In the range of described pre-set current value, then determine according to described first current detection value and described second current detection value
Described salt and the interface location of diesel oil, if it is judged that described first current detection value and described second electric current inspection
Difference between measured value is not in the range of described pre-set current value, then interval Preset Time detects described first again
The signal of telecommunication and described second signal of telecommunication.
System the most according to claim 4, it is characterised in that described hard contact includes multiple hard contact, institute
Stating each hard contact in multiple hard contact and be all connected with a diode, described permanent source circuit includes multiple Heng Yuan
Circuit, in the plurality of permanent source circuit, one end of each permanent source circuit is all connected with a diode, the plurality of perseverance
In source circuit, the other end of each permanent source circuit is parallel to parallel line, and described system also includes:
Cable, one end of described cable is connected to described detection equipment；And
Cable connectors, is arranged at the surface of described base plate, one end of described cable connectors and described and line
Road is connected, and the other end of described cable connectors is connected with the other end of described cable.
System the most according to claim 5, it is characterised in that the plurality of hard contact longitudinal direction spaced set in
The surface of described base plate.
System the most according to claim 6, it is characterised in that described data processing equipment is for according to described first
Testing result and described second testing result determine that the metal being in the plurality of hard contact in described salt touches
The number of point, and the boundary of described salt and diesel oil is determined according to the number of the hard contact being in described salt
Position, face.
System the most according to claim 1, it is characterised in that described detection equipment includes:
First power supply, is connected with described sensing device, is used for producing described first predeterminated voltage；
Second source, is connected with described sensing device, is used for producing described second predeterminated voltage；And
Ammeter, is connected with described sensing device, for detecting described first signal of telecommunication and described second respectively
The signal of telecommunication.
9. the oil-water interfaces detection method making chamber for salt hole air reserved storeroom, it is characterised in that including:
Detect first signal of telecommunication and second signal of telecommunication respectively, to obtain the first testing result and the second detection knot respectively
Really, wherein, by first during described first signal of telecommunication is the salt that sensing device is filled in salt hole air reserved storeroom cavity
Predeterminated voltage drives the signal of telecommunication produced, and described second signal of telecommunication is that described sensing device is at described salt hole air reserved storeroom
Driven the signal of telecommunication produced by the second predeterminated voltage under the effect of the salt filled in cavity；And
The position, interface of described salt and diesel oil is determined according to described first testing result and described second testing result
Put.
Method the most according to claim 9, it is characterised in that described first testing result includes the first current detecting
Value, described second testing result includes the second current detection value, according to described first testing result and described second
Testing result determines that the interface location of described salt and diesel oil includes:
Judge that whether the difference between described first current detection value and described second current detection value is in predetermined current
In the range of value；
If it is judged that the difference between described first current detection value and described second current detection value is described pre-
If in current value range, then determine described halogen according to described first current detection value and described second current detection value
Water and the interface location of diesel oil；And
If it is judged that the difference between described first current detection value and described second current detection value is not described
In the range of pre-set current value, then interval Preset Time detects described first signal of telecommunication and described second signal of telecommunication again.
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| CN108222919A (en) * | 2016-12-12 | 2018-06-29 | 中国石油天然气股份有限公司 | Gas-water interface monitoring method applied to salt hole air reserved storeroom gas injection row's halogen stage |
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| CN110828862A (en) * | 2019-10-29 | 2020-02-21 | 中国科学院武汉岩土力学研究所 | Electric energy storage device of salt cavern flow battery |
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| CN116878614A (en) * | 2023-06-11 | 2023-10-13 | 中国地质大学（武汉） | Vortex loss differential array type oil-water interface detection system and method |
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