CN107605475A - Equipment, system and method for formation testing - Google Patents
Equipment, system and method for formation testing Download PDFInfo
- Publication number
- CN107605475A CN107605475A CN201711024985.1A CN201711024985A CN107605475A CN 107605475 A CN107605475 A CN 107605475A CN 201711024985 A CN201711024985 A CN 201711024985A CN 107605475 A CN107605475 A CN 107605475A
- Authority
- CN
- China
- Prior art keywords
- data
- equipment
- downhole
- formation
- tubing string
- 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.)
- Pending
Links
Abstract
The embodiment of the present invention provides a kind of equipment for formation testing, system and method, belongs to formation testing field.Underground equipment for formation testing includes：Data acquisition device, it is arranged in tubing string, for gathering downhole data；Data processing equipment, it is connected with the data acquisition device, for the downhole data to be converted into wireless signal；And data transmission device, it is arranged in the tubing string, is connected with the data processing equipment, for the wireless signal to be transmitted to ground installation via the electromagnetism passage that the tubing string and stratum form.By downhole data real-time Transmission to ground installation so that engineer can obtain downhole data in real time, and adjust test job system in time according to downhole data.
Description
Technical field
The present invention relates to formation testing field, more particularly to a kind of equipment for formation testing, system and method.
Background technology
Formation testing is for possible oil, gas-bearing formation, using a set of special apparatus and method, by reducing fluid column in well
Pressure, induce in the fluid access wall in stratum and obtain fluid related parameter, so as to be obtained according to the fluid related parameter of measurement
Go out fluid output situation.
In the prior art, there are the test of APR sleeve pipes and both method of testings of MFE open hole tests.
Fig. 1 shows the tubular column structure of APR sleeve pipes test.As shown in figure 1, APR sleeve pipe testing tools be one kind can only be
The applied pressure by annulus formula testing tool used in sleeve pipe.The instrument after packer setting, drive a well, closing well, circulation, the items such as sampling
By annular space pressure control during operation.APR sleeve pipe testing tools have the characteristics that：Tested suitable for pernicious gas layer；
Due to being full-bore, surveyed suitable for high-pressure oil-gas well and an ultra shallow well；Tested suitable for high angle hole；Pickling can be carried out to stratum
Or squeezing operation；In the case where test string is motionless, multiple switching well is realized using the application and release of annular pressure, is grasped
Make convenient, simple.But APR sleeve pipe testing tools are due to needing applied pressure by annulus to realize underground switch well, so can only be in sleeve pipe
Use.
Fig. 2 shows the tubular column structure of MFE open hole tests.As shown in Fig. 2 a whole set of MFE open hole tests instrument by
In the put-on and delegated of drilling rod (or oil pipe) come control test valve driven a well, closing well.MFE open hole tests instrument both can be in sleeve pipe
Inside being tested can also be tested in open hole well.Compared with APR sleeve pipe testing tools, MFE open hole tests instrument have with
Lower defect：It is not easy to test in high-pressure oil-gas well；It is not easy to be tested in ultradeep well；It is not easy to test in shallow-layer well；Naked
Tail pipe tested person specification limit is supported when being tested in eye well no more than 150m, and tests total time no more than 16 hours；
Can be achieved layering straddle test in open hole well, but tested person specification limit, across every length no more than 30m.
In addition, applicant in this case has found, ground test instrument of the prior art, it could obtain and survey only after closing well
The downhole data detected during examination, operating personnel can not obtain downhole data in real time so that oil test data explains hysteresis.
The content of the invention
The purpose of the embodiment of the present invention is to provide a kind of equipment for formation testing, system and method, for solving or
At least partly solves above-mentioned technical problem.
To achieve these goals, the embodiment of the present invention provides a kind of underground equipment for formation testing, the equipment
Including：Data acquisition device, it is arranged in tubing string, for gathering downhole data；Data processing equipment, filled with the data acquisition
Put and be connected, for the downhole data to be converted into wireless signal；And data transmission device, it is arranged in the tubing string,
Be connected with the data processing equipment, for by the wireless signal via the electromagnetism passage that the tubing string and stratum form and
Transmit to ground installation.
Alternatively, the data acquisition device includes：Temperature-detecting device, for detecting formation temperature；And pressure inspection
Device is surveyed, for detecting formation pressure.
Alternatively, the equipment also includes：Resistivity detecting device, for detecting the resistivity of downhole fluid.
Alternatively, the tubing string includes upper tubing string and lower tubular column, the data acquisition device and the data transmission device
Be arranged in the lower tubular column, and the equipment also includes insulating short section, be arranged on the upper tubing string and the lower tubular column it
Between.
Correspondingly, the embodiment of the present invention also provides a kind of ground installation for formation testing, and the equipment includes：Data
Reception device, for receiving the wireless signal transmitted by underground equipment；Data processing equipment, it is connected with the data sink
Connect, for the wireless signal to be converted into downhole data；And controller, it is connected with the data processing equipment, is used for
Read the downhole data.
Alternatively, the downhole data includes formation temperature and strata pressure；The controller is additionally operable to according to described
Layer temperature and the strata pressure draw curve；And the equipment also includes display device, is connected with the controller, use
In the display curve.
Alternatively, the controller is additionally operable to：In shut-in period, judge whether the strata pressure recovers to prime stratum
Pressure；And in the case where the strata pressure recovers to original formation pressure, the display device is controlled to show that closing well carries
Show.
Alternatively, the downhole data includes the resistivity of downhole fluid；The controller is additionally operable to according to the resistance
Rate determines the property of the downhole fluid；And the equipment also includes display device, is connected with the controller, for showing
Show the property of the downhole fluid.
Alternatively, the data sink includes inserting ground antenna, is inserted for receiving this between ground antenna and wellhead column
Voltage.
Correspondingly, the embodiment of the present invention also provides a kind of system for formation testing, and the system includes：Above-mentioned use
In the underground equipment of formation testing；And the above-mentioned ground installation for formation testing.
Correspondingly, the embodiment of the present invention also provides a kind of method for formation testing, and methods described includes：Under production wells
Data；The downhole data is converted into wireless signal；And the electromagnetism for forming the wireless signal via tubing string and stratum
Passage and transmit to ground installation.
Alternatively, the wireless signal is electromagnetic wave signal, and the frequency range of the electromagnetic wave signal is 2Hz to 10Hz.
Alternatively, in the case where drilling depth is less than 1000m, the frequency range of the electromagnetic wave signal for 10Hz extremely
15Hz；It is 6Hz by the set of frequency of the electromagnetic wave signal in the case where the scope of drilling depth is 1000m to 2000m；
And it is 3.5Hz by the set of frequency of the electromagnetic wave signal in the case where drilling depth is more than 2000m.
Correspondingly, the embodiment of the present invention also provides a kind of method for formation testing, and methods described includes：Receive by well
The wireless signal of lower equipment transmission；The wireless signal is converted into downhole data；And read the downhole data.
Alternatively, the downhole data includes formation temperature and strata pressure, and methods described also includes：According to the stratum
Temperature and the strata pressure draw curve；Show the curve.
Alternatively, methods described also includes：In shut-in period, judge whether the strata pressure recovers to being primitively laminated
Power；And in the case where the strata pressure recovers to original formation pressure, display closing well prompting.
Alternatively, the downhole data includes the resistivity of downhole fluid, and methods described also includes：According to the resistivity
Determine the property of the downhole fluid；And the property of the display downhole fluid.
Pass through above-mentioned technical proposal, by downhole data real-time Transmission to ground installation so that engineer can obtain in real time
Downhole data, and adjust test job system in time according to downhole data.
The further feature and advantage of the embodiment of the present invention will be described in detail in subsequent specific embodiment part.
Brief description of the drawings
Accompanying drawing is that the embodiment of the present invention is further understood for providing, and a part for constitution instruction, with
The embodiment in face is used to explain the embodiment of the present invention together, but does not form the limitation to the embodiment of the present invention.Attached
In figure：
Fig. 1 shows the tubular column structure of APR sleeve pipes test；
Fig. 2 shows the tubular column structure of MFE open hole tests；
Fig. 3 shows the structured flowchart of the underground equipment according to an embodiment of the invention for formation testing；
Fig. 4 shows the schematic diagram of insulating short section in an embodiment；
Fig. 5 shows the decay schematic diagram of electromagnetic wave signal under different transmission depth；
Fig. 6 shows the structured flowchart of the ground installation according to an embodiment of the invention for formation testing；
Fig. 7 shows the schematic diagram of the ground system according to an embodiment of the invention for formation testing；
Fig. 8 shows the schematic diagram of the ground system according to another embodiment of the present invention for formation testing；
Fig. 9 shows the schematic flow sheet of the method according to an embodiment of the invention for formation testing；And
Figure 10 shows the schematic flow sheet of the method according to an embodiment of the invention for formation testing.
Embodiment
The embodiment of the embodiment of the present invention is described in detail below in conjunction with accompanying drawing.It should be appreciated that this
The embodiment of place description is merely to illustrate and explain the present invention embodiment, is not intended to limit the invention embodiment.
Fig. 3 shows the structured flowchart of the underground equipment according to an embodiment of the invention for formation testing.Such as Fig. 3 institutes
Show, the embodiment of the present invention provides a kind of underground equipment for formation testing, and the equipment can include：Data acquisition device
310, it is arranged in tubing string, for gathering downhole data；Data processing equipment 320, it is connected with the data acquisition device, uses
In the downhole data is converted into wireless signal；And data transmission device 330, it is arranged in the tubing string, with the number
It is connected according to processing unit, for the wireless signal to be transmitted to ground via the electromagnetism passage that the tubing string and stratum form
Face equipment.The underground equipment for formation testing goes for any one formation test tool, such as can be applicable
In APR sleeve pipes testing tool and MFE open hole test instruments, by by downhole data real-time Transmission to ground installation so that engineering
Teacher can obtain downhole data in real time, and adjust test job system in time according to downhole data.
Alternatively, tubing string can be divided into tubing string and lower tubular column, and harvester and data transmission device can be arranged on down
In tubing string, insulating short section can be provided between upper tubing string and lower tubular column.The electromagnetism passage of formation testing is established, it is necessary to shape
Into two emission electrodes, thus, it is necessary to which test string is disconnected after, re-form insulating electrode.
Data transmission device for example can be electromagnetism modulate emission device, then data processing equipment is used to turn downhole data
Change electromagnetic wave signal into, electromagnetism modulate emission device can be used as antenna using tubing string.Electromagnetism modulate emission device uses tubing string conduct
One electromagnetic wave radio communication channel, signal code upload along tubing string, while the peripherad stratum diffusion during upload,
So as to form tubing string-stratum electromagnetism passage.
Fig. 4 shows the schematic diagram of insulating short section in an embodiment.As shown in figure 4, insulating short section 40 divides tubing string up and down
Used outside insulated, so as to form the dipole emission antenna of excitation of electromagnetic wave.Further, can be set between upper tubing string and lower tubular column
Driving voltage VT, the exciting current part come out from positive pole flows up along upper tubing string, because stratum is conductive, the axial current
There to be significant portion to be leaked in stratum during to upstream.And Leakage Current gathers down under the attraction of negative electrode
On the negative pole of tubing string.
Electromagnetism distribution on tubing string is relevant with formation resistivity and formation thickness, it is assumed that formation resistivity is respectively：ρ 1, ρ
2, ρ 3 ... ρ i ... ρ n, formation thickness are respectively：Z (1), z (2), z (3) ... z (i) ... z (n).
Then the CURRENT DISTRIBUTION on tubing string is：
Wherein,I (z) is signal code in the intensity of z points, I0For signal code at source point most
Significantly, δ is the skin coefficient that becomes on stratum, and f is signal code frequency, and μ is stratum magnetic conductivity, and ρ is formation resistivity.
The transmission depth of electromagnetism modulate emission device is relevant with formation resistivity ρ, and it is 10 Ω that it, which is applied to electrical resistivity range,
To 1000 Ω stratum.For suitable stratum transmission depth up to 5000m.Specifically, transmitting depth can be according to electromagnetism
Parameter P is estimated：
P=σ μ ω R2 (2)
Wherein：σ is formation conductivity, and μ is stratum magnetic conductivity, and ω is signal code frequency for circle frequency and ω=2 π f, f, R
To transmit radius, transmission radius is relevant with transmission depth.
Fig. 5 shows the decay schematic diagram of electromagnetic wave signal under different transmission depth.As shown in figure 5, show that transmission is deep
In the case of spending for 1Km, 2Km and 3Km, the decay schematic diagram of electromagnetic wave signal.From formula (1), formula (2) and Fig. 5, electricity
Big, decay is lost when magnetostatic wave signal is propagated in the earth formation soon, causes signal transmission depth and transmission rate to be extremely restricted, because
This, can be by extending antenna or increase signal repeater, to improve transmission power in actual mechanical process.
Alternatively, the downhole data that data processing equipment can be gathered to data acquisition device is encoded, modulated
Processing.The modulation system of data is related to the power of transmission signal antijamming capability and the reliability of transmission, therefore practical operation
During, it is necessary to select suitable modulation system.
Alternatively, the data processing equipment can include DSP Processor, digital analog converter and power amplification
Device.The data that data acquisition device is gathered can be sent to DSP Processor by data-interface, and DSP Processor can be to institute
The data of reception are encoded, modulated, digital analog converter can by the data conversion after coded modulation into analog signal,
Power amplifier can carry out power amplification to form wireless signal to the analog signal changed.
High low-resistance change, will have a strong impact on electromagnetic wave propagation between the resistance on stratum, particularly stratum.Electromagnetic wave
Transmitting range in addition to relevant with the resistivity on stratum, also with modulation when used wave frequency it is relevant.Electromagnetic wave exists
Transmission capacity and wave frequency and formation resistivity in stratum is closely related.Wave frequency is more highly attenuating bigger, electromagnetic wave
Frequency is lower, and the distance of transmission is more remote.But if wave frequency is too low, then message transmission rate can be caused excessively slow, because
This is, it is necessary to select suitable wave frequency.
Alternatively, the scope of used wave frequency can be 2Hz to 10Hz.Alternatively it is also possible to according to transmission
Well depth dynamic adjustment wave frequency, for example, the well depth within 1000m, the scope of wave frequency can be 10Hz to 15Hz.
1000m to 2000m well depth, wave frequency could be arranged to about 6Hz.More than 2000m well depth, wave frequency can be with
It is arranged to 3.5Hz.
In addition, mud resistivity also has considerable influence to transmission of wireless signals.In air drilling, if drill bit and stratum
Contact resistance is excessive, and the problem of causing wireless signal impenetrably layer is transferred to ground, therefore, drill bit and stratum also occurs
Contact resistance should also be as that there is suitable value.
Alternatively, data transmission device can be provided with antenna, and data transmission device can be by antenna by data
Wireless signal transmission handled by reason device is gone out, the electromagnetism that the wireless signal that antenna is launched forms via tubing string and stratum
Passage and transmit to ground installation.Data transmission device for example can be electromagnetism modulate emission device, and the transmitting work(of electromagnetic wave
Rate is general all very big, easily triggers antenna ends short circuit it is necessary to have the antenna in certain broadband, so in actual use
The suitable antenna with certain bandwidth can be selected as needed.Furthermore, it is possible to improve letter by extending the length of antenna
Number transmission power, the development length of antenna can be set as the case may be.
It is possible to further be powered by power supply for data transmission device, the power supply is such as can be battery pack.Can
To understand, the power needed for electromagnetic radiation mode is big, and therefore, the capacity of battery pack will influence the underground usage time of instrument,
Therefore, suitable battery capacity can be selected according to being actually needed.
In one embodiment, data acquisition device can include temperature-detecting device and pressure-detecting device, be respectively used to
Detect formation temperature and strata pressure.Wherein temperature-detecting device is such as can be temperature sensor, pressure-detecting device example
It such as can be pressure sensor.After data processing equipment is processed into wireless signal, data transmission device can be by the nothing
Line signal transmits to ground installation, ground installation and wireless signal processing can be laminated for obtaining formation temperature and ground
Power, so as to which engineer can adjust working system in real time according to the formation temperature and strata pressure.
In one embodiment, data acquisition device can also include resistivity detecting device, for detecting downhole fluid
Resistivity, after data processing equipment is processed into wireless signal, data transmission device can be by the transmission of wireless signals to ground
Face equipment, ground installation can be to wireless signal processing for obtaining the resistivity of downhole fluid, should so as to basis
The resistivity of downhole fluid determines downhole fluid properties.
Fig. 6 shows the structured flowchart of the ground installation according to an embodiment of the invention for formation testing.Such as Fig. 6 institutes
Show, the embodiment of the present invention also provides a kind of ground installation for formation testing, and the equipment can include：Data sink
610, for receiving the wireless signal transmitted by underground equipment；Data processing equipment 620, it is connected with the data sink
Connect, for the wireless signal to be converted into downhole data；And controller 630, it is connected with the data processing equipment, uses
In the reading downhole data.The underground equipment can be the well for formation testing that any one embodiment of the present invention provides
Lower equipment.The wireless signal of the real-time reception underground equipment of data sink 610 transmission, data processing equipment 620 in real time should
Wireless signal is converted into downhole data, and controller 630 reads the downhole data in real time, and engineer can be caused to grasp test in real time
Data, and test job system can be adjusted according to test data in time.
Ground receiving wastewater facility can be with well head at a distance of certain safe distance.Alternatively, data sink can include
Ground antenna is inserted, for receiving the voltage between the slotting ground antenna and wellhead column.
Alternatively, data processing equipment can include signal amplifier, analog-digital converter and DSP Processor etc..
Signal amplifier can be amplified to the wireless signal received, the analog signal that analog-digital converter will can be amplified
Be converted into data signal, the processing such as DSP Processor is filtered, demodulates and decoded to the data signal to form downhole data,
The downhole data can be transmitted via data-interface to controller.
In one embodiment, the downhole data can include formation temperature and strata pressure, and controller can be according to this
Formation temperature and strata pressure real-time rendering curve, the curve can include pressure-time curve and/or temperature-time curve.
Alternatively, the ground installation provided in an embodiment of the present invention for formation testing can also include display device, the display device
It is connected with controller, can be used for pressure described in real-time display, temperature curve.Engineer can be according to the pressure of real-time display
Power, temperature data adjust test job system on ground in time, obtain more qualified test data.
Alternatively, between the build-up period of shut-in period, the strata pressure that controller can be read with real-time judge is
It is no to recover to original formation pressure.The original formation pressure can be measured and store in the controller in advance.Described
In the case that stressor layer recovers to original formation pressure, controller can control the display device to show closing well prompting, engineering
Teacher can be prompted according to the closing well to carry out switch well.In the prior art, fixed open-shut in time is typically set to carry out
Switch well, it will usually strata pressure occurs and has recovered to original formation pressure, but does not reach the closed-in time of setting also, and causes
Closing well can not be terminated in time.Or strata pressure may occur and do not recover to original formation pressure also, and the closed-in time has reached
To the closed-in time of setting, this may make it that the test data enrolled after closing well is unqualified.And the embodiment of the present invention passes through reality
When judge whether strata pressure recovers to original formation pressure, and in the case where strata pressure recovers to original formation pressure,
Engineering division switch well is reminded, while the effectively control formation testing cycle, more qualified test data can be obtained.
In one embodiment, the downhole data can also include the resistivity of downhole fluid, and controller can be according to this
Resistivity determines the property of downhole fluid, and alternatively, the ground installation provided in an embodiment of the present invention for formation testing is also
Display device can be included, the display device is connected with controller, is displayed for downhole fluid properties.By reading in real time
Downhole fluid resistivity is taken, formation fluid property can be recognized with the very first time, foundation is provided for optimal inspection process.For example, root
According to fluid resistivity, it can be determined that whether test layer is oil reservoir, if it is judged that test layer is not oil reservoir, for instance it can be possible that water
Layer, dried layer etc., then engineer can be immediately finished test, so as to greatly shorten the formation testing cycle.And in traditional dst technology,
Need just judge fluid properties after fluid is lifted to ground.
The embodiment of the present invention also provides a kind of ground system for formation testing, and the system can include：The present invention appoints
The underground equipment for formation testing that one embodiment provides；And any embodiment of the present invention provide be used for formation testing
Ground installation.
Fig. 7 shows the schematic diagram of the ground system according to an embodiment of the invention for formation testing.Such as Fig. 7 institutes
Show, the underground equipment 710 for formation testing is arranged in tubing string, and equipment 710 can include inserting tube 711, data acquisition device
It can be arranged in the inserting tube 711, for gathering downhole data.Alternatively, data processing equipment can also be arranged on the spy
In pipe 711.Power supply 713 is used for for the power supply such as data acquisition device, data processing equipment and data transmission device 712.For
The ground installation 720 of formation testing can include data sink 721, data processing equipment (not shown), controller
(not shown) and slotting ground antenna 722.Wherein data processing equipment and controller can integrate.Or it can use
Computer etc. performs data processing equipment and the function performed by controller.
Fig. 8 shows the schematic diagram of the ground system according to another embodiment of the present invention for formation testing.Such as Fig. 8 institutes
Show, the fluid in down-hole formation enters bottom tubing string 82 via string screen 81, and data acquisition device 84 gathers downhole data, number
It is wireless signal to handle the downhole data according to processing unit, and data transmission device 83 goes out the wireless signal transmission via antenna
Go.
In the case of well depth is increased, signal can be strengthened by increasing underground transmission power.Or alternatively, can
In a manner of above being carried using insulating electrode, specifically, will can be connected on originally the emitter stage of insulating electrode upper end by wire to
On be incorporated into the insulating electrode upper end placed in tubing string, that is, by original position in the insulating electrode " above carrying " in shaft bottom, on
The distance carried can be equal to increased transmission well depth.It is, for example, possible to use the insulating electrode that armored cable connection above carries.
Or can be by the way of extension antenna, such as the extension antenna 85 of antenna can be arranged on hanging pup joint
In 86.Specifically, a cylindrical drill bar can be added in without magnetic and insulating short section 88, equivalent to the brill for adding insulating short section lower end
Post, so as to add the point contacted with stratum.Tubing string and the contact resistance on stratum reduce so that electric current is easier to inject stratum.
Tubing string is divided into upper tubing string 89 and lower tubular column 87 by insulating short section 88, wherein upper be between tubing string 89 and lower tubular column 87
Insulation.Data acquisition device 84, data transmission device 83 and data processing equipment are respectively positioned in lower tubular column, and are not located at insulating
Under device 93.The signal part that data transmission device 83 is launched is sent to well head to be connect by data sink 91 by tubing string
Receive, a part is transmitted via stratum and received by inserting ground antenna 91.
Insert ground antenna 91 to can also be used for receiving the voltage between the slotting ground antenna and wellhead column, the voltage can be expressed as
Vrec (x), the voltage Vrec (x) between ground antenna 91 and wellhead column is inserted it is also assumed that being the voltage between well head and the earth
Difference.Voltage Vrec (x) is very faint signal, the voltage Vrec (x) that data sink 91 can receive slotting ground antenna 91
Processing is amplified, is then decoded again by PC 92 to obtain downhole data.
Data sink 91 is used for the wireless signal for receiving underground equipment transmission, and PC 92 is used to receive data receiver dress
The data of 91 transmission are put, and are handled.
The included underground for formation testing in ground system provided in an embodiment of the present invention for formation testing
The concrete operating principle and benefit of equipment and ground installation will not be described in great detail here in above-detailed.
Fig. 9 shows the schematic flow sheet of the method according to an embodiment of the invention for formation testing.Such as Fig. 9 institutes
Show, the embodiment of the present invention also provides a kind of method for formation testing, and this method provides suitable for any embodiment of the present invention
The underground equipment for formation testing, specifically, methods described can include：Step S910, gather downhole data；Step
S920, the downhole data is converted into wireless signal；And step S930, by the wireless signal via tubing string and stratum group
Into electromagnetism passage and transmit to ground installation.By downhole data real-time Transmission to ground installation so that engineer can be real-time
Downhole data is obtained, and adjusts test job system in time according to downhole data.
The concrete operating principle and benefit of the method for formation testing provided in an embodiment of the present invention for underground equipment with
The concrete operating principle and benefit of underground equipment provided in an embodiment of the present invention for formation testing are identical, will no longer go to live in the household of one's in-laws on getting married here
State.
Figure 10 shows the schematic flow sheet of the method according to an embodiment of the invention for formation testing.Figure 10 institutes
Show, the embodiment of the present invention also provides a kind of method for formation testing, and this method provides suitable for any embodiment of the present invention
The ground installation for formation testing, specifically, methods described can include：Step S1010, receives and is transmitted by underground equipment
Wireless signal；Step S1020, the wireless signal is converted into downhole data；And step S1030, read the underground
Data.By reading downhole data in real time so that engineer can adjust test job system in time according to downhole data.
The concrete operating principle and benefit of the method for formation testing provided in an embodiment of the present invention for ground installation with
The concrete operating principle and benefit of ground installation provided in an embodiment of the present invention for formation testing are identical, will no longer go to live in the household of one's in-laws on getting married here
State.
, it is necessary to which pressure, temperature curve could be drawn after test job terminates in conventional formation testing, and testing
Yield, fluid properties etc. could be obtained after end-of-job.Also, open-shut in time is arranged to the set time, and without adjusting
It is whole.The data measured during test need to beam back rear carry out well test analysis, calculate determine formation effective permeability, formation capacity,
Skin factor and bottom-hole storage coefficient etc., formation testing data explain hysteresis.Formation testing engineer can not grasp underground pressure in the very first time
Power, temperature and fluid properties, and then test job institution adjustment can not be carried out on ground, to obtain targetedly formation testing number
According to, it is possible to the formation testing cycle can be increased or take not wholly-owned material.
Equipment provided in an embodiment of the present invention for formation testing, system and method have broad application prospects, and have
Body using when there is advantages below：
(1) it is more to enroll formation data species
In addition to admission strata pressure, temperature data, formation fluid resistivity can be also enrolled.
(2) it is ageing strong
1) by reading pressure, temperature data in real time, engineer adjusts test job system on ground in time, obtains more
Qualified test data, there is advanced meaning；
2) by reading downhole fluid resistivity data in real time, very first time understanding formation fluid property, is optimal inspection
Process provides foundation.If for example, judge that certain test layer for water layer, dried layer, terminates to test, greatly shorten examination at once from resistivity value
The oily cycle, and traditional dst technology need to could judge fluidity after fluid flow to ground；
3) well test analysis is carried out by the way that real-time testing data are transmitted into rear in time, so as to recognize in advance inside oil reservoir
Situation, with the test job of this more positive testing well in scientific guidance scene.
(3) economy is strong
Because its is ageing strong, by the test data obtained in real time, shortens the closed-in time in time, shorten test period.
Or according to fluid properties, terminate to test in advance, shorten test period, so as to reduce testing expense.
Most stratum tests use traditional test methods at present, if technology provided in an embodiment of the present invention is applied to now
Field test job will change traditional method for testing strata significantly, have superpower innovation meaning.
The optional embodiment of the embodiment of the present invention is described in detail above in association with accompanying drawing, still, the embodiment of the present invention is simultaneously
The detail being not limited in above-mentioned embodiment, can be to of the invention real in the range of the technology design of the embodiment of the present invention
The technical scheme for applying example carries out a variety of simple variants, and these simple variants belong to the protection domain of the embodiment of the present invention.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance
In the case of shield, it can be combined by any suitable means.In order to avoid unnecessary repetition, the embodiment of the present invention pair
Various combinations of possible ways no longer separately illustrate.
It will be appreciated by those skilled in the art that realize that all or part of step in above-described embodiment method is to pass through
Program instructs the hardware of correlation to complete, and the program storage is in the storage medium, including some instructions are causing list
Piece machine, chip or processor (processor) perform all or part of step of each embodiment methods described of the application.It is and preceding
The storage medium stated includes：USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only Memory), random access memory
(RAM, Random Access Memory), magnetic disc or CD etc. are various can be with the medium of store program codes.
In addition, it can also be combined between a variety of embodiments of the embodiment of the present invention, as long as it is not
The thought of the embodiment of the present invention is run counter to, it should equally be considered as disclosure of that of the embodiment of the present invention.
Claims (10)
1. a kind of underground equipment for formation testing, it is characterised in that the equipment includes：
Data acquisition device, it is arranged in tubing string, for gathering downhole data；
Data processing equipment, it is connected with the data acquisition device, for the downhole data to be converted into wireless signal；With
And
Data transmission device, it is arranged in the tubing string, is connected with the data processing equipment, for by the wireless signal
Transmitted via the electromagnetism passage that the tubing string and stratum form to ground installation.
2. equipment according to claim 1, it is characterised in that the data acquisition device includes：
Temperature-detecting device, for detecting formation temperature；And
Pressure-detecting device, for detecting formation pressure.
3. equipment according to claim 1, it is characterised in that the equipment also includes：
Resistivity detecting device, for detecting the resistivity of downhole fluid.
4. equipment according to claim 1, it is characterised in that
The tubing string includes upper tubing string and lower tubular column, the data acquisition device and the data transmission device be arranged on it is described under
In tubing string, and
The equipment also includes insulating short section, is arranged between the upper tubing string and the lower tubular column.
5. a kind of ground installation for formation testing, it is characterised in that the equipment includes：
Data sink, for receiving the wireless signal transmitted by underground equipment；
Data processing equipment, it is connected with the data sink, for the wireless signal to be converted into downhole data；With
And
Controller, it is connected with the data processing equipment, for reading the downhole data.
6. equipment according to claim 5, it is characterised in that
The downhole data includes formation temperature and strata pressure；
The controller is additionally operable to draw curve according to the formation temperature and the strata pressure；And
The equipment also includes display device, is connected with the controller, for showing the curve.
7. equipment according to claim 6, it is characterised in that the controller is additionally operable to：
In shut-in period, judge whether the strata pressure recovers to original formation pressure；And
In the case where the strata pressure recovers to original formation pressure, the display device is controlled to show closing well prompting.
8. equipment according to claim 5, it is characterised in that
The downhole data includes the resistivity of downhole fluid；
The controller is additionally operable to determine the property of the downhole fluid according to the resistivity；And
The equipment also includes display device, is connected with the controller, for showing the property of the downhole fluid.
9. equipment according to claim 5, it is characterised in that the data sink includes inserting ground antenna, for connecing
Receive the voltage between the slotting ground antenna and wellhead column.
10. a kind of system for formation testing, it is characterised in that the system includes：
The underground equipment for formation testing according to any one claim in Claims 1-4；And
The ground installation for formation testing according to any one claim in claim 5 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711024985.1A CN107605475A (en) | 2017-10-27 | 2017-10-27 | Equipment, system and method for formation testing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711024985.1A CN107605475A (en) | 2017-10-27 | 2017-10-27 | Equipment, system and method for formation testing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107605475A true CN107605475A (en) | 2018-01-19 |
Family
ID=61080415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711024985.1A Pending CN107605475A (en) | 2017-10-27 | 2017-10-27 | Equipment, system and method for formation testing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107605475A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110617057A (en) * | 2019-09-17 | 2019-12-27 | 中海艾普油气测试（天津）有限公司 | Full-pipe type underground testing pipe column and testing method thereof |
| CN111193572A (en) * | 2019-12-18 | 2020-05-22 | 中海石油(中国)有限公司湛江分公司 | Formation test data transmission method, electronic device and computer readable storage medium |
| CN117052380A (en) * | 2023-10-10 | 2023-11-14 | 四川宏大安全技术服务有限公司 | Wireless pressure measurement device and method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060219401A1 (en) * | 2005-03-31 | 2006-10-05 | Schlumberger Technology Corporation | Apparatus and method for sensing downhole parameters |
| CN1920253A (en) * | 2005-08-23 | 2007-02-28 | 普拉德研究及开发股份有限公司 | Formation evaluation system and method |
| CN101761062A (en) * | 2010-01-07 | 2010-06-30 | 中国地质大学（武汉） | Wireless rotating penetrometer |
| CN102536204A (en) * | 2012-01-11 | 2012-07-04 | 中国地质大学（武汉） | Method for increasing transmitting efficiency of electromagnetic wave wireless measurement-while-drilling system by aid of multiple insulation short pieces |
| CN106460505A (en) * | 2014-06-18 | 2017-02-22 | 开拓工程股份有限公司 | Measuring while drilling systems, method and apparatus |
| CN106471211A (en) * | 2014-06-23 | 2017-03-01 | 开拓工程股份有限公司 | Optimize downhole data communication using sensor at node and drill bit |
| CN106506050A (en) * | 2016-06-29 | 2017-03-15 | 西华大学 | Downhole wireless low-frequency electromagnetic wave intercommunication system |
-
2017
- 2017-10-27 CN CN201711024985.1A patent/CN107605475A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060219401A1 (en) * | 2005-03-31 | 2006-10-05 | Schlumberger Technology Corporation | Apparatus and method for sensing downhole parameters |
| CN1920253A (en) * | 2005-08-23 | 2007-02-28 | 普拉德研究及开发股份有限公司 | Formation evaluation system and method |
| CN101761062A (en) * | 2010-01-07 | 2010-06-30 | 中国地质大学（武汉） | Wireless rotating penetrometer |
| CN102536204A (en) * | 2012-01-11 | 2012-07-04 | 中国地质大学（武汉） | Method for increasing transmitting efficiency of electromagnetic wave wireless measurement-while-drilling system by aid of multiple insulation short pieces |
| CN106460505A (en) * | 2014-06-18 | 2017-02-22 | 开拓工程股份有限公司 | Measuring while drilling systems, method and apparatus |
| CN106471211A (en) * | 2014-06-23 | 2017-03-01 | 开拓工程股份有限公司 | Optimize downhole data communication using sensor at node and drill bit |
| CN106506050A (en) * | 2016-06-29 | 2017-03-15 | 西华大学 | Downhole wireless low-frequency electromagnetic wave intercommunication system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110617057A (en) * | 2019-09-17 | 2019-12-27 | 中海艾普油气测试（天津）有限公司 | Full-pipe type underground testing pipe column and testing method thereof |
| CN111193572A (en) * | 2019-12-18 | 2020-05-22 | 中海石油(中国)有限公司湛江分公司 | Formation test data transmission method, electronic device and computer readable storage medium |
| CN111193572B (en) * | 2019-12-18 | 2021-02-05 | 中海石油(中国)有限公司湛江分公司 | Formation test data transmission method, electronic device and computer readable storage medium |
| CN117052380A (en) * | 2023-10-10 | 2023-11-14 | 四川宏大安全技术服务有限公司 | Wireless pressure measurement device and method |
| CN117052380B (en) * | 2023-10-10 | 2024-01-02 | 四川宏大安全技术服务有限公司 | Wireless pressure measurement device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2405932C2 (en) | Methods and devices for communication through casing string | |
| RU2374440C2 (en) | Sensor system | |
| WO2012109844A1 (en) | Downhole time-domain pulsed electromagnetic method for detecting resistivity of stratum outside metal cased pipe | |
| US20150137817A1 (en) | Casing mounted em transducers having a soft magnetic layer | |
| AU2014389473B2 (en) | Casing coupler mounted EM transducers | |
| CN107605475A (en) | Equipment, system and method for formation testing | |
| CN1920253A (en) | Formation evaluation system and method | |
| CN204357427U (en) | Shaft bottom test data is wireless ground direct-reading system | |
| US9322796B2 (en) | Fluid resistivity sensor | |
| RU2378509C1 (en) | Telemetry system | |
| WO2021073421A1 (en) | Concealed resource prediction method and rock electromagnetic logging system | |
| CN105019891A (en) | Underground coal mine logging-while-drilling tool based on electromagnetic wave resistivity and measuring method thereof | |
| NO344652B1 (en) | Borehole logging device and method for determining the electrical resistivity properties of the subsoil | |
| CN102767360B (en) | Underground detector for measuring acousto-electric effects | |
| CN103498667B (en) | A kind of for there being the downhole parameters transmission system of bar producing well | |
| Lu et al. | Improving the application depth of electromagnetic measurement while drilling (EM-MWD) systems by receiving signals from adjacent wells | |
| CN102562038B (en) | Direct reading testing system for pressure and temperature of underground stratum | |
| CA2977216A1 (en) | Surface excitation ranging methods and systems employing a ground well and a supplemental grounding arrangement | |
| CN115680632B (en) | Underground micro-current signal wireless uploading method and device | |
| RU2229733C2 (en) | Geophysical telemetring system to transmit hole data | |
| CA2976352C (en) | Surface excitation ranging methods and systems employing a customized grounding arrangement | |
| CN209959239U (en) | System for formation testing | |
| CN104453880A (en) | Seven-electrode resistivity measurement probe | |
| AU2012383533B2 (en) | Fluid excluder for logging in water based muds | |
| CN105370271A (en) | Measuring device for combustible ice detection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180222 Address after: 102206 Beijing City, Changping District Shahe Town, Xisha village 500 meters west of Chinese oil innovation base A34 block Applicant after: Luo Huaidong Applicant after: Qu Zhaofeng Applicant after: Zhou Wenbo Address before: 102206 Beijing City, Changping District Shahe Town, Xisha village 500 meters west of Chinese oil innovation base A34 block Applicant before: Luo Huaidong Applicant before: Qu Zhaofeng |
|
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180418 Address after: 102206 Beijing City, Changping District Shahe Town, Xisha village 500 meters west of Chinese oil innovation base A34 block Applicant after: Luo Huaidong Applicant after: Qu Zhaofeng Address before: 102206 Beijing City, Changping District Shahe Town, Xisha village 500 meters west of Chinese oil innovation base A34 block Applicant before: Luo Huaidong Applicant before: Qu Zhaofeng Applicant before: Zhou Wenbo |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180119 |