CN103195408B - Oil/gas Well flow imaging measuring method - Google Patents
Oil/gas Well flow imaging measuring method Download PDFInfo
- Publication number
- CN103195408B CN103195408B CN201310124577.9A CN201310124577A CN103195408B CN 103195408 B CN103195408 B CN 103195408B CN 201310124577 A CN201310124577 A CN 201310124577A CN 103195408 B CN103195408 B CN 103195408B
- Authority
- CN
- China
- Prior art keywords
- electrode
- ring
- exciting
- adjacent
- oil
- 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.)
- Expired - Fee Related
Links
Landscapes
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses a kind of Oil/gas Well flow imaging measuring method, comprising: by multiple measurement electrode rings and bucking electrode annulate shaft to the oil well wall that is arranged at intervals at detected fluid; Sequentially select an electrode in each measurement electrode ring to do as exciting electrode, excite exciting electrode and with exciting electrode adjacent electrode up and down, generate pencil electromagnetic field; Sequentially select in each measurement electrode ring with the plural electrode in exciting electrode interval, as collecting electrode, to receive the response signal of fluid media (medium); After processing according to the response signal that in each measurement electrode ring, each electrode receives, generate flow parameter and the image in detected fluid cross section. The present invention is applicable to high and low moisture various situations, multiphase fluidflow cross section Multiple-Scan is measured, can effectively overcome generally electrometric " soft " effect, high-resolution identification fluid media (medium), the script of heterogeneous fluid in well is flowed and disturbs very littlely, there is the advantages such as real-time, non-invasi, with low cost, application is convenient.
Description
Technical field
Patent of the present invention belongs to applied geophysics logging technique, relates to a kind of Oil/gas Well production performance observationWith the method for electromagnetically measuring that multiphase pipe flow imaging detects, be that a kind of Oil/gas Well flow imaging is measured concretelyMethod.
Background technology
Oil and natural gas is contained in underground thousands of meters of dark oil-gas Layer, gets through stratum carry out by drilling wellExploitation. Production of hydrocarbons well section operated by rotary motion has iron and steel matter sleeve pipe or the screen casing of round shape, and angle and ground level hang downDirectly, inclination or level. Because stratum is moisture or waterflooding extraction, oily, G&W often in pit shaftTwo-phase or Three-phase Flow. Utilize the Multiphase Flow section of logger monitoring producing well section, can understand oilThe production status of gas-bearing formation, takes scientific and reasonable technical measures, ensures oil gas stable yields and high yield.
The interior heterogeneous fluid of production of hydrocarbons well distributes very complicated, and analysis of flow characteristics needs on flow section eachThe details at individual position, should research and solve by nonlinear kinetics measurement. Existing flow profileLogging technique belongs to linear measurement, collection be the total result of medium in investigative range, stream cannot be providedThe accurate information that body distributes, in the urgent need to new measuring method and technology. The Oil/gas Well of this invention flowsImaging method for electromagnetically measuring, information that can nonlinear scanning mode production wells flow field, by data placeManage real-time reconstruction flow image, accurately reflect flow pattern and the feature of heterogeneous fluid in Oil/gas Well.
Summary of the invention
The embodiment of the present invention provides a kind of Oil/gas Well flow imaging measuring method, comprising:
By multiple measurement electrode rings and bucking electrode annulate shaft to the oil well wall that is arranged at intervals at detected fluid;
Sequentially select in each measurement electrode ring an electrode as exciting electrode, excite described exciting electrode and withExciting electrode adjacent electrode up and down, generates pencil electromagnetic field;
Sequentially select in each measurement electrode ring with the plural electrode in described exciting electrode interval as receptionElectrode, receives the response signal of described fluid media (medium);
The response signal receiving according to each electrode in each measurement electrode ring generates detected fluid cross section after processingFlow parameter and image.
Preferably, in the embodiment of the present invention measurement electrode ring and bucking electrode ring all there is N equidistantlyThe electrode of annular arrangement, wherein, N > 6.
Preferably, the each electrode in the embodiment of the present invention in measurement electrode ring is identical, described bucking electrode ringIn each electrode identical.
Preferably, in the embodiment of the present invention with exciting electrode up and down adjacent electrode comprise: describedly swashEncourage in electrode adjacent with exciting electrode in the measurement electrode ring at electrode place and adjacent bucking electrode ringThe electrode adjacent with exciting electrode.
In the embodiment of the present invention, excite described exciting electrode and with exciting electrode adjacent electrode up and down,Generating pencil electromagnetic field comprises:
Supply with electrode adjacent with exciting electrode in described exciting electrode, described measurement electrode ring and adjacentBucking electrode ring in the electrode one electric current homeostasis adjacent with exciting electrode, the pumping signal that frequency is certain,In detected fluid, generate pencil electromagnetic field, the cps of pumping signal is nMHz.
Preferably, in the embodiment of the present invention, sequentially select in each measurement electrode ring and described exciting electrode intervalPlural electrode is as collecting electrode, and the response signal that receives described fluid media (medium) comprises:
By described collecting electrode adjacent four electrode groundings up and down, by measurement electrode ring neutralization screenCover electrode grounding adjacent with described collecting electrode in electrode retaining collar.
The present invention fully utilizes dielectric property and the conductive characteristic difference identification borehole fluid of oil, gas and water,Be applicable to high and low moisture various situations, and by excite the electromagnetic field of fascicular texture in well, to manyPhase fluid flow section Multiple-Scan is measured, and can effectively overcome generally electrometric " soft " effect,High-resolution identification fluid media (medium), in method of the present invention, electromagnetic array sensor is close to the borehole wall, need not invadeEnter internal fluid, very little to the mobile interference of the script of heterogeneous fluid in well. In addition, method of the present invention belongs toIn functional imaging, there is the advantages such as real-time, non-invasi, with low cost, application is convenient.
For above and other object of the present invention, feature and advantage can be become apparent, cited below particularlyGood embodiment, and coordinate appended graphicly, be described in detail below.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below will be to realityThe accompanying drawing of executing required use in example or description of the Prior Art is briefly described, apparently, belowAccompanying drawing in description is only some embodiments of the present invention, for those of ordinary skill in the art,Do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the flow chart of Oil/gas Well flow imaging measuring method of the present invention;
Fig. 2 is the multilayer ring electrode array structure vertical section schematic diagram that the present invention adopts
Fig. 3 longitudinally shields schematic diagram for surveying electromagnetic field;
Fig. 4 is for surveying electromagnetic field transverse focusing schematic diagram;
Fig. 5 is the multilayer ring electrode array probe metering system schematic diagram that the present invention adopts.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried outDescribe clearly and completely, obviously, described embodiment is only the present invention's part embodiment, andNot whole embodiment. Based on the embodiment in the present invention, those of ordinary skill in the art are not doingGo out the every other embodiment obtaining under creative work prerequisite, all belong to the scope of protection of the invention.
The invention provides a kind of Oil/gas Well flow imaging measuring method, as shown in Figure 1, the method comprises:
Step S101, by multiple measurement electrode rings and bucking electrode annulate shaft to being arranged at intervals at detected fluidOil well wall;
Step S102, sequentially selects an electrode in each measurement electrode ring as exciting electrode, to excite excitation electricThe utmost point and with exciting electrode adjacent electrode up and down, generate pencil electromagnetic field;
Step S103, sequentially selects to do with the plural electrode in exciting electrode interval in each measurement electrode ringFor collecting electrode, receive the response signal of fluid media (medium);
Step S104, generates tested according to the response signal that in each measurement electrode ring, each electrode receives after processingThe flow parameter of fluid cross-section and image.
Preferably, in the embodiment of the present invention measurement electrode ring and bucking electrode ring all there is N equidistantlyThe electrode of annular arrangement, preferred, N in the present invention > 6.
In the present invention with exciting electrode up and down adjacent electrode comprise: the measurement electricity at exciting electrode placeThe electrode adjacent with exciting electrode in the electrode adjacent with exciting electrode in polar ring, adjacent bucking electrode ring.
In the embodiment of the present invention, excite described exciting electrode and with exciting electrode adjacent electrode up and down,Generating pencil electromagnetic field comprises:
The electrode adjacent with exciting electrode and adjacent shielding electricity in supply incentive electrode, measurement electrode ringThe electrode one electric current homeostasis adjacent with exciting electrode, the pumping signal that frequency is certain in polar ring, in measured streamIn body, generate pencil electromagnetic field, the cps of pumping signal is nMHz.
In the embodiment of the present invention, sequentially select in each measurement electrode ring with described exciting electrode interval more than twoElectrode as collecting electrode, the response signal that receives described fluid media (medium) comprises: collecting electrode is upper and lowerFour electrode groundings that left and right is adjacent, by measurement electrode ring and bucking electrode ring in collecting electrode phaseAdjacent electrode grounding.
Below in conjunction with concrete embodiment, technical solution of the present invention is described in further details.
The object of the invention is to provide a kind of pencil that excites in Oil/gas Well to survey electromagnetic field, and scanning survey is manyThe method of phase fluid flow section image.
The present invention realizes in the following way:
Form multilayer ring electrode array by bucking electrode ring and measurement electrode ring, as shown in Figure 2, shieldingElectrode retaining collar 201 and measurement electrode ring 202 rearrange between on axial Z mutually, measurement electrode ring 201 withThe electrode number of bucking electrode ring 202 is identical, by the identical electrodes composition of N equidistant annular arrangement,N in each electrode retaining collar in the embodiment of the present invention > 6, electrode number can affect Measurement Resolution, number of electrodes very littleOrder too much may affect the real-time of measuring imaging.
In Oil/gas Well, when excitation electromagnetic field, electrod-array is close to oil well wall and is placed in detected fluid, choosingSelect any electrode and its 4 adjacent electrodes up and down in measurement electrode ring, supply with electric current weighing apparatusThe pumping signal of fixed, frequency certain (unit is nMHz) forms the electricity of fascicular texture in borehole fluidMagnetic field. As shown in Figure 3, be the top view of a measurement electrode ring, wherein electrode 1 is as exciting electrode,Give electrode 16 adjacent with electrode 1 in electrode 1, this measurement electrode ring and electrode 2 one electric current homeostasis,The pumping signal that frequency is certain also gives electrode one excitation adjacent with electrode 1 in bucking electrode ring simultaneouslySignal, does not indicate in this figure, forms fascicular texture electromagnetic field. If Fig. 4 is the detection electromagnetic field formingLongitudinally shielding schematic diagram, the each electrode in measurement electrode ring 401 is as exciting electrode, and 402 and 403 areThe bucking electrode ring adjacent with electrode retaining collar 401, now, electrode 16 and electrode 2 are owing to launching with electrode 1Identical electric current, thus the diffusion of electromagnetic field is surveyed in inhibition diametrically. Fig. 5 is the detection electromagnetism formingThe transverse focusing schematic diagram of field, electrode 501,502,503 is exciting electrode, electrode 505 is as receptionWhen electrode, electrode 504 and 506 ground connection.
Receive useful signal in Oil/gas Well time, in State selective measurements electrode retaining collar with 2, exciting electrode interval withOn electrode, by its 4 adjacent electrode groundings up and down, also with reference to figure 3, select electrode 9 doWhile receiving useful signal for collecting electrode, by the electrode 10 in this measurement electrode ring, electrode 8 and adjacentBucking electrode ring in the electrode grounding adjacent with electrode 9, electrode 9 receives the sound under fluid media (medium) effectInduction signal. The exciting signal frequency that the present invention adopts is nMHz, not only can reflect borehole fluid simultaneouslyConduction property and dielectric property, and the frequency dispersion impact that can effectively avoid a variety of causes to cause.
When scanning survey data, State selective measurements electrode retaining collar electrode excites successively, other N-5 electricityThe utmost point loops reception, through exciting and circulate reception N time, right to the each electrode in this measurement electrode ringIn the fluid flow section of this electrode retaining collar place degree of depth, can gather N × (N-5) individual independent measurement data.These measurement data have reflected respectively the electricity of different parts medium on the tested flow section at this electrode retaining collar placeProperty parameter, by process can rebuild this flow section image and determine each phase fluid proportional speed. Equally,Other measurement electrode ring in detected fluid also carried out to aforesaid operations, obtain cross section, each electrode retaining collar placeImage and each phase fluid ratio. Multiphase fluidflow cross section Multiple-Scan is measured, can effectively be overcome oneAs electrometric " soft " effect, high-resolution identification fluid media (medium)
The invention provides one multiphase fluidflow imaging measurement method in Oil/gas Well, the method comprisesThe Array Construction of multilayer ring electrode, pencil are surveyed electromagnetic field excitation, useful signal accepts and data scanning is surveyedAmount. Oil/gas Well flow imaging method for electromagnetically measuring of the present invention has three special benefits: the one, and comprehensive utilizationWith dielectric property and the conductive characteristic difference identification borehole fluid of oil, gas and water, be applicable to high and low moistureVarious situations; The 2nd, by excite the electromagnetic field of fascicular texture in well, to multiphase fluidflow cross sectionMultiple-Scan is measured, and can effectively overcome generally electrometric " soft " effect, high-resolution identification streamBody medium; The 3rd, electromagnetic array sensor is close to the borehole wall, need not invade internal fluid, to multiphase flow in wellThe mobile interference of script of body is very little. In addition, the method belongs to functional imaging, has real-time, harmlessThe advantages such as wound property, with low cost, application is convenient.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system orComputer program. Therefore, the present invention can adopt complete hardware implementation example, completely implement software example,Or in conjunction with the form of the embodiment of software and hardware aspect. And the present invention can adopt one or moreThe computer-usable storage medium that wherein includes computer usable program code (includes but not limited to diskMemory, CD-ROM, optical memory etc.) form of the upper computer program of implementing.
The present invention is that reference is according to the method for the embodiment of the present invention, equipment (system) and computer program productThe flow chart of product and/or block diagram are described. Should understand can by computer program instructions realization flow figure and/Or flow process and/or square frame in each flow process and/or square frame and flow chart and/or block diagram in block diagramCombination. Can provide these computer program instructions to all-purpose computer, special-purpose computer, embedded placeThe processor of reason machine or other programmable data processing device, to produce a machine, makes to pass through computerOr the instruction that the processor of other programmable data processing device is carried out produces for realizing one of flow chartThe device of the function of specifying in square frame of flow process or multiple flow process and/or block diagram or multiple square frame.
These computer program instructions also can be stored in energy vectoring computer or other programmable data processing are establishedIn the standby computer-readable memory with ad hoc fashion work, make to be stored in this computer-readable memoryIn instruction produce and comprise the manufacture of command device, this command device realize in flow process of flow chart orThe function of specifying in square frame of multiple flow processs and/or block diagram or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device,Make to carry out sequence of operations step on computer or other programmable devices computer implemented to produceProcess, thereby the instruction of carrying out on computer or other programmable devices is provided for realizing at flow chartThe step of the function of specifying in square frame of a flow process or multiple flow process and/or block diagram or multiple square frame.
In the present invention, apply specific embodiment principle of the present invention and embodiment have been set forth, withThe explanation of upper embodiment is just for helping to understand method of the present invention and core concept thereof; Meanwhile, forOne of ordinary skill in the art, according to thought of the present invention, in specific embodiments and applicationsAll will change, in sum, this description should not be construed as limitation of the present invention.
Claims (7)
1. an Oil/gas Well flow imaging measuring method, is characterized in that, described method comprises:
Multiple measurement electrode rings and bucking electrode ring axially spaced-apart are adjacent to the oil well that is arranged at detected fluidWall;
Sequentially select in each measurement electrode ring an electrode as exciting electrode, excite described exciting electrode and withExciting electrode adjacent electrode up and down, generates pencil electromagnetic field;
Sequentially select in each measurement electrode ring with the plural electrode in described exciting electrode interval as receptionElectrode, receives the response signal of described detected fluid;
The response signal receiving according to each electrode in each measurement electrode ring generates detected fluid cross section after processingFlow parameter and image.
2. Oil/gas Well flow imaging measuring method as claimed in claim 1, is characterized in that, describedMeasurement electrode ring and bucking electrode ring all have N the equidistantly electrode of annular arrangement, wherein, N > 6.
3. Oil/gas Well flow imaging measuring method as claimed in claim 2, is characterized in that, describedEach electrode in measurement electrode ring is identical, and the each electrode in described bucking electrode ring is identical.
4. Oil/gas Well flow imaging measuring method as claimed in claim 1, is characterized in that, describedWith exciting electrode up and down adjacent electrode comprise: in the measurement electrode ring at described exciting electrode place withThe electrode adjacent with exciting electrode in the electrode that exciting electrode is adjacent and adjacent bucking electrode ring.
5. Oil/gas Well flow imaging measuring method as claimed in claim 4, is characterized in that, describedExcite described exciting electrode and with exciting electrode adjacent electrode up and down, generate pencil electromagnetic field and comprise:
Supply with electrode adjacent with exciting electrode in described exciting electrode, described measurement electrode ring and adjacentBucking electrode ring in the electrode one electric current homeostasis adjacent with exciting electrode, the pumping signal that frequency is certain,In detected fluid, generate pencil electromagnetic field.
6. Oil/gas Well flow imaging measuring method as claimed in claim 1, is characterized in that, describedSequentially select in each measurement electrode ring electric as receiving with the plural electrode in described exciting electrode intervalThe utmost point, the response signal that receives described detected fluid comprises:
By described collecting electrode adjacent four electrode groundings up and down.
7. Oil/gas Well flow imaging measuring method as claimed in claim 4, is characterized in that, describedBy described collecting electrode up and down adjacent four electrode groundings comprise:
By in measurement electrode ring and bucking electrode ring in the electrode grounding adjacent with described collecting electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310124577.9A CN103195408B (en) | 2013-04-11 | 2013-04-11 | Oil/gas Well flow imaging measuring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310124577.9A CN103195408B (en) | 2013-04-11 | 2013-04-11 | Oil/gas Well flow imaging measuring method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103195408A CN103195408A (en) | 2013-07-10 |
| CN103195408B true CN103195408B (en) | 2016-05-18 |
Family
ID=48718207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310124577.9A Expired - Fee Related CN103195408B (en) | 2013-04-11 | 2013-04-11 | Oil/gas Well flow imaging measuring method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103195408B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387066B (en) * | 2017-07-26 | 2020-05-26 | 中国石油大学(华东) | Gas invasion early-stage discovery method for oil and gas drilling based on electrical impedance measurement |
| CN113379036B (en) * | 2021-06-18 | 2023-04-07 | 西安石油大学 | Oil-gas image desensitization method based on context encoder |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5543617A (en) * | 1994-06-27 | 1996-08-06 | Schlumberger Technology Corporation | Method of measuring flow velocities using tracer techniques |
| US6318156B1 (en) * | 1999-10-28 | 2001-11-20 | Micro Motion, Inc. | Multiphase flow measurement system |
| CN102373922B (en) * | 2011-11-03 | 2014-08-13 | 中国电子科技集团公司第二十二研究所 | Well periphery ultrasonic imaging downhole tool |
| CN202914086U (en) * | 2012-11-08 | 2013-05-01 | 何媛媛 | Real-time observation device of fluid flow in porous media |
-
2013
- 2013-04-11 CN CN201310124577.9A patent/CN103195408B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN103195408A (en) | 2013-07-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6186336B2 (en) | Inductive broadband three-component borehole magnetic field measurement sensor and borehole electromagnetic exploration method using the same | |
| CN1329626C (en) | Well logging method and instrument based on HF array electromagnetic wave propagation | |
| CN101343999B (en) | Array magnetic-acoustic electro-conductibility imaging logging method and apparatus | |
| CN104237970A (en) | Earthquake electromagnetism joint exploration system and data collecting devices and method thereof | |
| CN104181581B (en) | Earthquake wave underground construction space observation system and method based on random arrangement | |
| CN102096111B (en) | Transmitting-receiving antenna separation type nuclear magnetic resonance water exploring device and water exploring method | |
| CN109358367A (en) | A kind of horizontal moving shallow transient electromagnetic fine granularing scalability method | |
| CN103207412A (en) | Method for detecting solution leaching and groundwater pollution scope of acid in-situ leaching of uranium | |
| CN104360395A (en) | Surface-underground full-space seismic wave data acquisition system and exploration method | |
| CN106706715A (en) | Polluted soil detection method based on three-dimensional high-density electrical resistivity method | |
| CN104903749A (en) | Deep zimuthal system with multi-pole sensors | |
| CN206378448U (en) | Polluted Soil detection arrangement of measuring-line structure based on comprehensive geophysical prospecting methods | |
| CN101609066B (en) | Electromagnetic sensing imaging system based on screen mesh and method thereof | |
| CN104407392A (en) | One-transmitting and three-receiving type detection device for water filling goaf, and detection method | |
| CN104360402B (en) | Well-to-ground joint electrical-method testing method and system | |
| CN106154310A (en) | A kind of Portable city geologic anomaly seismic acquisition system and method | |
| CN103941298A (en) | Transient electromagnetic instrument and hydro-geologic prospecting method for mine | |
| CN102767366B (en) | High-resolution orientation resistivity side direction logging instrument and logging method | |
| CN103195408B (en) | Oil/gas Well flow imaging measuring method | |
| CN102183341B (en) | Nuclear magnetic resonance detection meter and detection method of hidden troubles of dam leakage | |
| CN102998698B (en) | A kind of pencil subsea cable wide-azimuth seismic data acquisition method | |
| CN106054268B (en) | A kind of array antenna source for transient electromagnetic method tunnel forward probe | |
| KR20190127515A (en) | Underground utilities information acquisition apparatus based on big-data for exploring a composite pipe using resistivity, and the method thereof | |
| CN104678443A (en) | Lonestone detector and control method of boulder detector | |
| CN203658601U (en) | A tunnel model test device achieving multiple geophysical field advanced detection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160518 Termination date: 20170411 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |