CN104360402A - Well-to-ground joint electrical-method testing method and system - Google Patents
Well-to-ground joint electrical-method testing method and system Download PDFInfo
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- CN104360402A CN104360402A CN201410545914.6A CN201410545914A CN104360402A CN 104360402 A CN104360402 A CN 104360402A CN 201410545914 A CN201410545914 A CN 201410545914A CN 104360402 A CN104360402 A CN 104360402A
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Abstract
The invention provides a well-to-ground joint electrical-method testing method and system. The well-to-ground joint electrical-method testing system comprises an in-well emission power supply subsystem, a ground collecting and acquiring subsystem and a master control and processing subsystem. By controlling emission electrodes in the in-well emission power supply subsystem and measuring electrodes in the ground collecting and acquiring subsystem, the well-to-ground joint electrical-method testing system can provide three power supply modes of in-well point source power supply, in-well dipole source power supply and well-to-ground joint power supply. The master control and processing subsystem can process and interpret the acquired data of the ground collecting and acquiring subsystem, and the geologic features of the surrounding area of boreholes can be effectively acquired. The well-to-ground joint electrical-method testing system is flexible in power supply modes, power supply, data acquisition and real-time simple processing of the data are integrated, and the well-to-ground joint electrical-method testing system is highly flexible and high in systematization and intelligence degrees.
Description
Technical field
The present invention relates to a kind of geophysical exploration technology, combine parallel electrical method method of testing and test macro with particularly relating to a kind of well.
Background technology
Boring plays an important role in resource and engineering geological condition exploration, structure and the structural attitude of stratum, rock etc. in underground geologic bodies can be understood by boring, therefore, how utilizing boring and ground space condition to detect with analysis the reservoir medium in borehole circumference certain limit is a major issue.
At present, for the exploration of borehole circumference reservoir medium geologic feature, main employing realizes power supply and data acquisition in the borehole simultaneously, carries out the test of earth electric field parameter, data processing is carried out to the data parameters that test obtains, obtains the technical parameter of borehole circumference geology further.
But, adopt the earth electric field parameter testing that said method carries out, power supply mode is single, and can not control flexibly, in addition, power supply, to gather and the function i ntegration such as real-time simple process of data is integrated, therefore, very flexible, systematization, intelligence degree are low, limited by means of the resolution characteristic of the electrical parameter obtained to space, well ground.
Summary of the invention
Combine parallel electrical method method of testing and test macro with the invention provides a kind of well, solve defect of the prior art, not only can provide multiple power supply mode, and can control flexibly, in addition, due to the real-time simple process function i ntegration of power supply, data acquisition and data is integrated, dirigibility is strong, systematization, intelligence degree are high, therefore, improve the resolution characteristic to space, well ground by means of the electrical parameter obtained.
Combine parallel electrical method test macro with the invention provides a kind of well, comprising: VTIC subsystem, surface collection acquisition subsystem and master control and processing subsystem in well;
In described well, VTIC subsystem comprises: at least two emitting electrodes, the multi-electrode sheathed cable of at least two emitting electrodes described in connection, control the described multi-electrode sheathed cable program control winch of movement and winch controller in the borehole, described in control, the launcher control system of at least two emitting electrode transmitting DC pulse signals, is the supplying cell that described at least two emitting electrodes are powered;
Described surface collection acquisition subsystem comprises: at least two surface collection gather substation, and each surface collection gathers substation and comprises at least two potential electrode, and at least two potential electrode that each surface collection gathers substation are linked together by cable;
Described master control and processing subsystem comprise: control module, receiving element and processing unit, and described control module gathers substation with described launcher control system and described at least two surface collection and is connected respectively;
Described control module be used for by described launcher control system or described at least two surface collection gather substation control respectively described at least two emitting electrodes or described at least two potential electrode adopt that well Point Source is powered, in well dipole source power or well combine power supply mode launch DC pulse signal;
Described receiving element divide at least two surface collection collections described in receiving stand in that well Point Source is powered, dipole source is powered or the potential value measured when combining the mode of power supply of well ground in well;
Described processing unit is used at least two emitting electrodes according to described control module control and adopts well Point Source to power respectively, in well dipole source power or well combine power supply the power supply current value of mode when launching DC pulse signal, described at least two emitting electrodes or described at least two potential electrode of described launcher control system record adopt well Point Source to power, in well dipole source power or well combine power supply the loop current value of mode when launching DC pulse signal and the spatial relation of described potential value and each electrode, to hole described in Inversion Calculation the resistivity 3-D data volume of peripheral region, flat sectional drawing required for formation, the geologic feature of described boring peripheral region is analyzed according to the resistivity 3-D data volume of described boring peripheral region or flat sectional drawing.
In one embodiment of this invention, the described well Point Source mode of powering for: described control module to be controlled respectively by described launcher control system described in an emitting electrode at least two emitting electrodes form loop with the ground-electrode being positioned at ground and power;
The mode that in described well, dipole source is powered for: described control module to be controlled by described launcher control system described in any two emitting electrodes at least two emitting electrodes form loop and power;
The mode of combining power supply described well for: described control module by described launcher control system and described at least two surface collection gather substation control described in a potential electrode gathering at least two potential electrode of substation of an emitting electrode at least two emitting electrodes and described each surface collection form loop and power.
In one embodiment of this invention, described control module also makes described multi-electrode sheathed cable move in described boring for controlling described program control winch by described winch controller, described in making, at least two positions of emitting electrode in described boring change, after the described position of at least two emitting electrodes in described boring changes, again described in being controlled respectively by described launcher control system or described at least two surface collection collection substation, at least two emitting electrodes or described at least two potential electrode adopt well Point Source to power, in well dipole source power or well combine power supply mode launch DC pulse signal.
In one embodiment of this invention, the size of current of DC pulse signals also launched by described launcher control system at least two emitting electrodes described in controlling.
In one embodiment of this invention, described at least two emitting electrodes comprise 32, and described at least two surface collection gather substation and comprise 6, and described surface collection gathers at least two potential electrode in each substation of substation and comprises 32.
Combine that parallel electrical method test macro not only can adopt that well Point Source is powered well provided by the invention, in well dipole source power or well combine the multiple power supply modes such as power supply and power, and can control flexibly, and due to by power supply, to gather and the real-time simple process function i ntegration of data is integrated, dirigibility is strong, systematization, intelligence degree are high, therefore, improve the resolution characteristic to space, well ground by means of the electrical parameter obtained.
Combine parallel electrical method method of testing with present invention also offers a kind of well, combine parallel electrical method test macro with being applied to well, described well ground is combined parallel electrical method test macro and is comprised: VTIC subsystem, surface collection acquisition subsystem and master control and processing subsystem in well;
In described well, VTIC subsystem comprises: at least two emitting electrodes, the multi-electrode sheathed cable of at least two emitting electrodes described in connection, control the described multi-electrode sheathed cable program control winch of movement and winch controller in the borehole, described in control, the launcher control system of at least two emitting electrode transmitting DC pulse signals, is the supplying cell that described at least two emitting electrodes are powered;
Described surface collection acquisition subsystem comprises: at least two surface collection gather substation, and each surface collection gathers substation and comprises at least two potential electrode, and at least two potential electrode that each surface collection gathers substation are linked together by cable;
Described master control and processing subsystem comprise: control module, receiving element and processing unit, and described control module gathers substation with described launcher control system and described at least two surface collection and is connected respectively;
Described control module be used for by described launcher control system or described at least two surface collection gather substation control respectively described at least two emitting electrodes or described at least two potential electrode adopt that well Point Source is powered, in well dipole source power or well combine power supply mode launch DC pulse signal;
Described receiving element divide at least two surface collection collections described in receiving stand in that well Point Source is powered, dipole source is powered or the potential value measured when combining the mode of power supply of well ground in well;
Described processing unit is used at least two emitting electrodes according to described control module control and adopts well Point Source to power respectively, in well dipole source power or well combine power supply the power supply current value of mode when launching DC pulse signal, described at least two emitting electrodes or described at least two potential electrode of described launcher control system record adopt well Point Source to power, in well dipole source power or well combine power supply the loop current value of mode when launching DC pulse signal and the spatial relation of described potential value and each electrode, to hole described in Inversion Calculation the resistivity 3-D data volume of peripheral region, flat sectional drawing required for formation, the geologic feature of described boring peripheral region is analyzed according to the resistivity 3-D data volume of described boring peripheral region or flat sectional drawing,
This well ground is combined parallel electrical method method of testing and is comprised:
The mode that at least two emitting electrodes described in described control module is controlled by described launcher control system adopt well Point Source to power launches DC pulse signal;
At least two surface collection collections described in described receiving element receives divide the potential value standing in and measure when described well Point Source is powered;
Described in described control module is controlled by described launcher control system, at least two emitting electrodes adopt the mode that in well, dipole source is powered to launch DC pulse signal;
At least two surface collection collections described in described receiving element receives divide the potential value standing in and measure when dipole source is powered in described well;
The mode that described control module combines power supply by described launcher control system and described at least two surface collection with gathering at least two emitting electrodes described in substation control and described at least two potential electrode employing well launches DC pulse signal;
Described in described receiving element receives, at least two surface collection collections divide the potential value measured when combining power supply with standing in described well;
Described in described processing unit controls according to described control module, at least two emitting electrodes adopt well Point Source to power respectively, in well dipole source power or well combine power supply the power supply current value of mode when launching DC pulse signal, described at least two emitting electrodes or described at least two potential electrode of described launcher control system record adopt well Point Source to power, in well dipole source power or well combine power supply the loop current value of mode when launching DC pulse signal and the spatial relation of described potential value and each electrode, to hole described in Inversion Calculation the resistivity 3-D data volume of peripheral region, flat sectional drawing needed for formation,
Described processing unit analyzes the address feature of described boring peripheral region according to the resistivity 3-D data volume of described boring peripheral region or flat sectional drawing.
In an embodiment provided by the invention, the described well Point Source mode of powering for: described control module to be controlled respectively by described launcher control system described in an emitting electrode at least two emitting electrodes form loop with the ground-electrode being positioned at ground and power;
The mode that in described well, dipole source is powered for: described control module to be controlled by described launcher control system described in any two emitting electrodes at least two emitting electrodes form loop and power;
The mode of combining power supply described well for: described control module by described launcher control system and described at least two surface collection gather substation control described in a potential electrode gathering at least two potential electrode of substation of an emitting electrode at least two emitting electrodes and described each surface collection form loop and power.
In an embodiment provided by the invention, combine parallel electrical method method of testing well, also comprise:
Described control module controls described program control winch by described winch controller makes described multi-electrode sheathed cable move in described boring, and described in making, at least two positions of emitting electrode in described boring change;
After the described position of at least two emitting electrodes in described boring changes, described control module again by described launcher control system or described at least two surface collection gather substation control respectively described at least two emitting electrodes or described at least two potential electrode adopt that well Point Source is powered, in well dipole source power or well combine power supply mode launch DC pulse signal.
In an embodiment provided by the invention, described launcher control system, the size of current of at least two emitting electrode transmitting DC pulse signals described in also controlling.
In an embodiment provided by the invention, described at least two emitting electrodes comprise 32, and described at least two surface collection gather substation and comprise 6, and described surface collection gathers at least two potential electrode in each substation of substation and comprises 32.
Parallel electrical method method of testing is combined on well ground provided by the invention, not only can be powered by well Point Source, in well dipole source power or well combine the various ways such as power supply and power, and power supply mode can be controlled flexibly, in addition, the real-time simple process function i ntegration of power supply, data acquisition and data is integrated by the present invention, and dirigibility is strong, and systematization, intelligence degree are high, therefore, improve the resolution characteristic to space, well ground by means of the electrical parameter obtained.
Accompanying drawing explanation
Combine the structural representation of parallel electrical method test macro a kind of well that Fig. 1 provides for the embodiment of the present invention one;
The structural representation of VTIC subsystem in the well that Fig. 2 is the well shown in Fig. 1 of the present invention combines in parallel electrical method test macro;
Fig. 3 is the well shown in Fig. 1 of the present invention combines the structural representation of the surface collection acquisition subsystem in parallel electrical method test macro;
Fig. 4 is the well shown in Fig. 1 of the present invention combines the structural representation of master control in parallel electrical method test macro and processing subsystem;
Fig. 5 be the well of the embodiment of the present invention two combine the process flow diagram of parallel electrical method method of testing.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The application place that parallel electrical method method of testing and test macro are combined in well ground provided by the invention is well ground, is mainly used in the geologic feature detecting reservoir medium in one borehole periphery certain limit.
Combine the structural representation of parallel electrical method test macro a kind of well that Fig. 1 provides for the embodiment of the present invention one, as shown in Figure 1, the well ground of the present embodiment is combined parallel electrical method test macro 10 and is comprised: VTIC subsystem 12, surface collection acquisition subsystem 13 and master control and processing subsystem 11 in well.
The structural representation of VTIC subsystem in the well that Fig. 2 is the well shown in Fig. 1 of the present invention combines in parallel electrical method test macro, Fig. 3 is the well shown in Fig. 1 of the present invention combines the structural representation of the surface collection acquisition subsystem in parallel electrical method test macro, and Fig. 4 is the well shown in Fig. 1 of the present invention combines the structural representation of master control in parallel electrical method test macro and processing subsystem.With reference to Fig. 2, Fig. 3 and Fig. 4, below the concrete formation of VTIC subsystem 12, surface collection acquisition subsystem 13 and master control and processing subsystem 11 in well is described in detail.
As shown in Figure 2, in well, VTIC subsystem 12 specifically comprises: at least two emitting electrodes 121, connect the multi-electrode sheathed cable 122 of at least two emitting electrodes 121, control the multi-electrode sheathed cable 122 program control winch 125 of movement and winch controller 126 in the borehole, control the launcher control system 123 that DC pulse signal launched by least two emitting electrodes 121, and be the supplying cell 124 that at least two emitting electrodes 121 are powered.
Concrete, winch controller 126 controls program control winch 125 and put into multi-electrode sheathed cable 122 in boring, and controls this multi-electrode sheathed cable 122 position in the borehole.In the present embodiment, the quantity of emitting electrode 121 can reach 32, the present invention is 32 at least two emitting electrodes 121 and is described, utilize multi-electrode sheathed cable 122 to be connected successively by these 32 emitting electrodes 121, launcher control system 123 for control in 32 emitting electrodes 121 any one or any two launch DC pulse signals.In addition, in this well, VTIC subsystem 12 also comprises the supplying cell 124 for carrying out powering for 32 emitting electrodes 121.
With reference to Fig. 1 and Fig. 3, surface collection acquisition subsystem 13 comprises: at least two surface collection gather substation 130, each surface collection gathers substation 130 and comprises at least two potential electrode 131, and at least two potential electrode 131 that each surface collection gathers substation 130 are linked together by cable 132.
Wherein, the quantity of at least two surface collection collection substations 130 can reach 6, the quantity of at least two potential electrode 131 that surface collection gathers in each substation of substation can reach 32, and the present invention gathers substation 130 for 6 surface collection and 32 potential electrode 131 are described.Surface collection acquisition subsystem 13 can support that 6 surface collection gather substation and carry out addressable expansion, each surface collection gathers substation 130 and controls 32 potential electrode 131, centralized and the distributed framework form combined is adopted to arrange, 32 potential electrode 131 that each surface collection collection substation 130 is controlled by cable 132 connect, unified this surface collection that is introduced into gathers substation 130, characteristic distributions is: surface collection gathers substation 130 two ends and respectively to distribute 16 potential electrode 131, they are connected by cable 132, the spacing of potential electrode 131 is chosen as 5 ~ 20m, the earthy electrode corresponding with potential electrode 131 can adopt copper metal electrode, 6 surface collection gather substation independently of each other, be evenly distributed on the top of boring, under the control of master control and disposal system 11, 6 surface collection gather substation and adopt parallel mode to carry out the collection of earth electric field data successively.Wherein, the earth electric field that can carry out gathering can be zero degree field, primary field or secondary field, zero degree field is also referred to as natural electric field, be geology under certain circumstances, do not need the electric field that artificial power supply just produces voluntarily, primary field refers to the electric field when producing in the process of manually powering to geologic body, and secondary field refers to that telluric electricity field is by the charged decay electric field produced in uncharged process when the power supply of powering disconnects.
As shown in Figure 4, master control and processing subsystem 11 comprise: control module 111, receiving element 112 and processing unit 113.
Composition graphs 1 ~ Fig. 4 is known, and control module 111 gathers substation 130 with launcher control system 123 and at least two surface collection and is connected respectively.Power in master control and processing subsystem 11 pairs of wells and launch subsystem 12 and surface collection acquisition subsystem 13 and carry out entirety and control, show whole test macro and test mode thereof, wherein, each basic electric property parameter that processing unit 113 pairs of receiving elements 112 receive is classified and simple process.Therefore, master control and processing subsystem 11 have the function coordinating to control with entirety with VTIC, receiving system communication.
Wherein, control module 111 control that at least two emitting electrodes 121 or at least two potential electrode 131 adopt that well Point Source is powered respectively for being gathered substation 130 by launcher control system 123 or at least two surface collection, in well dipole source power or well combine power supply mode launch DC pulse signal.
For receiving at least two surface collection, receiving element 112 gathers that substations 130 are powered at well Point Source, dipole source is powered or the potential value measured when combining the mode of power supply of well ground in well.
Processing unit 113 adopts well Point Source to power for controlling at least two emitting electrodes 121 according to control module 111 respectively, in well dipole source power or well combine power supply the power supply current value of mode when launching DC pulse signal, at least two emitting electrodes 121 that launcher control system 123 records or at least two potential electrode 131 adopt well Point Source to power, in well dipole source power or well combine power supply the loop current value of mode when launching DC pulse signal and the spatial relation of potential value and each electrode, the resistivity 3-D data volume of Inversion Calculation boring peripheral region, flat sectional drawing required for formation, the geologic feature of described boring peripheral region is analyzed according to the resistivity 3-D data volume of described boring peripheral region or flat sectional drawing.
In the present embodiment, control module 111 is connected with the launcher control system 123 of VTIC subsystem 12 in well respectively, gather substation 130 with the surface collection of 6 in surface collection acquisition subsystem 13 to be connected, substation 130 is gathered by control module 111 programmed control launcher control system 123 and surface collection, control emitting electrode 121 further or which kind of mode is potential electrode 131 adopt launch DC pulse signal, the power supply mode that different control modes is corresponding different, specifically, mainly contain following three kinds: the mode that well Point Source is powered, combine the mode of power supply the mode that in well, dipole source is powered and well.
Alternatively, the mode that in the mode no matter adopting well Point Source to power, well, dipole source is powered, or the mode adopting well ground to combine power supply launches DC pulse signal, receiving element 112 is all be mainly used to the potential value that reception 6 surface collection gather substation 130 measurement.Wherein, when potential value is measured, can respectively to the data acquisition that 10V, 5V, 1V equipotential produces, the size of potential value carries out regulating and controlling by the control module 111 in master control and processing subsystem 11.
Processing unit 113 is under different power supply modes, loop current value that power supply current value when DC pulse signal launched by least two emitting electrodes 121 and launcher control system 123 record is controlled to control module 111 and the potential value that receiving element 112 is collected carries out solutions volume, again in conjunction with the spatial relation of each electrode, 3 D resistivity inverting is carried out to the boring current potential of peripheral region and resistivity, extract and set up boring peripheral region resistivity 3-D data volume, flat sectional drawing required for formation, analyze the Geologic Structure Feature of boring surrounding formation medium further.
The relation of VTIC subsystem 12 in well, surface collection acquisition subsystem 13 and master control and processing subsystem 11 can be summarized as follows: VTIC subsystem 12 and carry out wire communication between master control and processing subsystem 11 in well, adopt signal mode that is synchronous or clock synchronous to control, have and the functions such as ground connection inspection are carried out to emitting electrode 121, it is also carry out communication by wired that surface collection in surface collection acquisition subsystem 13 gathers substation 130 with master control and processing subsystem 11, have and potential electrode 131 ground connection is checked, acquisition parameter is arranged, data acquisition, current potential solution is compiled, data store, the functions such as power management, here, acquisition parameter specifically refers to electric current, current potential, the data gathered can for the power supply current value recorded when DC pulse launched by least two emitting electrodes 121 in VTIC subsystem 12 in control module 111 control well, when emitting electrode in well in VTIC subsystem 12 121 and the surface collection potential electrode 131 gathered in substation 130 form loop, the loop current value of launcher control system record and surface collection gather substation 130 and adopt well Point Source to power, in well, dipole source is powered or the potential value measured when combining the mode of power supply of well ground, main frame and processing subsystem 11 carry out communication by wired mode and above-mentioned two subsystems, can control that launcher control system 123 makes that signal is synchronous, the duty inquiry that completes launcher control system 123, the setting of acquisition parameter, the status poll of potential electrode 131 and the passback of potential value.
Combine parallel electrical method test macro the well that the present embodiment provides, the mode of being powered by the control of VTIC subsystem in control well is that well Point Source is powered, in well dipole source power or well combine power supply, control surface collection acquisition subsystem and control collection and the collection that surface collection collection substation carries out data, and the relation utilizing master control and processing subsystem to coordinate between each subsystem, carry out total tune control, and the power supply current value of record can be utilized, the spatial relation of loop current value and the potential value measured and each electrode, the resistivity data body of Inversion Calculation boring peripheral region, flat sectional drawing required for formation, and then analyze the geologic feature of boring peripheral region.
Parallel electrical method test macro is combined on well ground provided by the invention, not only can be powered by well Point Source, in well dipole source power or well combine the multiple power supply modes such as power supply and power, and can control flexibly, in addition, due to this well combine parallel electrical method test macro the real-time simple process function i ntegration of power supply, data acquisition and data be integrated, dirigibility is strong, systematization, intelligence degree are high, therefore, improve the resolution characteristic to space, well ground by means of the electrical parameter obtained.
Further, in the present embodiment, the mode that well Point Source is powered is: the emitting electrode 121 that control module 111 is controlled at least two emitting electrodes respectively by launcher control system 123 forms loop with the ground-electrode being positioned at ground and powers.
DC pulse signal launched by any one emitting electrode 121 that control module 111 in master control and processing subsystem 11 is come in control well in 32 emitting electrodes by launcher control system 123, control this emitting electrode 121 and form loop with ground-electrode, this ground-electrode is on ground, wellhole annex, an electrode being fixedly installed.Launching the emitting electrode 121 of DC pulse signal can be any one in 32 emitting electrodes 121, and specifically controlled by control module 111, control module 111 is also for controlling the switching of the emitting electrode 121 launching DC pulse signal.
In the present embodiment, the mode that in well, dipole source is powered is: any two emitting electrodes 121 that control module 111 is controlled at least two emitting electrodes 121 by launcher control system 123 form loop and power.
Any two in control module 111 control well in master control and processing subsystem 11 in 32 emitting electrodes 121 form loop, these two emitting electrodes 121 that launcher control system 123 controls to form loop carry out transmitting DC pulse signal, and then power for whole test macro.Any two emitting electrodes 121 of transmitting DC pulse signal are any two in 32 emitting electrodes 121 controlled by control module 111, the switching between all right programmed control emitting electrode 121 of control module 111.
The mode that power supply is combined on well ground in the present embodiment is: control module 111 gathers substation 130 by launcher control system 123 and at least two surface collection and controls the potential electrode 131 that an emitting electrode 121 at least two emitting electrodes and each surface collection gather at least two potential electrode 131 of substation 130 and form loop and power.
Particularly, select to launch in well the potential electrode 131 that an emitting electrode 121 in subsystem 12 in 32 emitting electrodes 121 and certain surface collection gather in substation in 32 potential electrode 131 and form loop, control transmitter this emitting electrode 121 of 123 controls and launch DC pulse signal, complete power supply.
Adopt that well Point Source is powered, in well dipole source power or well combine the multiple power supply modes such as power supply and launch DC pulse signal, in different situations, different power supply modes can be selected, by changing the locus of emitting electrode or potential electrode, form new loop, utilize control module to control the loop current value of power supply current value when DC pulse signal launched by least two emitting electrodes and launcher control system record, and utilize the receiving element in master control and processing subsystem to receive surface collection to gather the potential value that substation measures.
Combine that parallel electrical method test macro can adopt that well Point Source is powered well provided by the invention, in well dipole source power or well combine power supply mode power, and by power supply, become one, unification is undertaken unifying control treatment by master control and processing subsystem, power supply mode is flexible, systematization, intelligence degree are high, and it is more accurate to judge the analysis of boring surrounding formation medium.
Further, control module 111 also makes multi-electrode sheathed cable 122 move in the borehole for being controlled program control winch 125 by winch controller 126, at least two emitting electrodes 121 position is in the borehole changed, after the above-mentioned position of at least two emitting electrodes 121 in described boring changes, again gather substation 130 by launcher control system 123 or at least two surface collection and control at least two emitting electrodes 121 respectively or at least two potential electrode 131 adopt well Point Source to power, in well dipole source power or well combine power supply mode launch DC pulse signal.
Under the effect of the winch controller 126 that program control winch 125 controls at control module 111, multi-electrode sheathed cable 122 is put into boring and controlled it move up and down in the borehole.
When adopting well Point Source to power, if emitting electrode 121 position in the borehole in 32 emitting electrodes 121 changes, control module 111 in master control and processing subsystem 11 controls emitting electrode 121 by launcher control system 123 and again launches DC pulse signal, control module 111 controls the loop current value that power supply current value when DC pulse signal launched by least two emitting electrodes 121 and launcher control system 123 record again again, and receiving element 112 also again receives surface collection and gathers the potential value that substation 130 measures.
When in employing well, dipole source is powered, any two composition loops in 32 emitting electrodes 121 in well, if when what control module 111 controlled changes for any one of launching in two emitting electrodes 121 of DC pulse signal, emitting electrode 121 locus in the borehole of also namely launching DC pulse signal there occurs change, control module 111 in master control and processing subsystem 11 controls emitting electrode 121 by launcher control system 123 and again launches DC pulse signal, control module 111 controls the loop current value that power supply current value when DC pulse signal launched by least two emitting electrodes 121 and launcher control system 123 record again again, receiving element 112 also receives the potential value that surface collection collection substation 130 measures again.
When the mode of combining with adopting well is powered, any one potential electrode 131 that any one emitting electrode 121 in well in 32 emitting electrodes 121 and surface collection gather in substation 130 forms loop, when control module 111 changes emitting electrode 121 for launching DC pulse signal or potential electrode 131, control module 111 in master control and processing subsystem 11 controls emitting electrode 121 by launcher control system 123 and again launches DC pulse signal, control module 111 controls the loop current value that power supply current value when DC pulse signal launched by least two emitting electrodes 121 and launcher control system 123 record again again, receiving element 112 also receives the potential value that surface collection collection substation 130 measures again.
Utilize the program control winch in the present embodiment and winch controller, the movement in the borehole of multi-electrode sheathed cable can be controlled, the emitting electrode locus in the borehole of launching DC pulse signal is carried out in further control, control module 111 controls the loop current value that power supply current value when DC pulse signal launched by least two emitting electrodes 121 and launcher control system 123 record again again, the receiving element of master control and disposal system again receives surface collection and gathers the current potential that substation measures, this control mode is simple, the data volume collected is large, improve the resolution characteristic to space, well ground.
Also need to be described, launcher control system 123 is also for controlling the size of current of the transmitting DC pulse signal of at least two emitting electrodes 121, and dirigibility is strong.
Optionally, described at least two emitting electrodes comprise 32, and described at least two surface collection gather substation and comprise 6, and described at least two potential electrode comprise 32.
The present embodiment one gives the process to the above-mentioned data collected, and explains the feature of geology according to the result of process.
Data processing: first to well combine power supply current value that parallel electrical method test macro records, the potential value of loop current value and generation carries out solution and compiles, singular value is wherein rejected, power according to point source or dipole source is powered or well combine power supply mode extract the power supply current value of different device, loop current value and potential value, convert the file layout of needs to, secondly, mesh generation is carried out to well ground region probed, sets up suitable space coordinates, region probed is divided into some grid cells, the feature in Inversion Calculation precision and actual Validity Test region need be considered during stress and strain model, adopt rectangle or square net mode, again, 3 D resistivity inverting is carried out to test zone, corresponding data processing software is utilized to carry out data inversion, will through pretreated electric current, carry out well geoelectrical resistivity chromatography after potential data body and corresponding coordinate file thereof import to calculate, inverting adopts the damped least square method that degree of convergence is higher, utilize the Average apparent resistivity value of test zone as initial model during forward modelling, by Finite element arithmetic model corresponding data, obtain the positive play resistivity value of initial model, in region, well ground, Average apparent resistivity value can obtain according to existing data, also can be that in test zone, electrical parameter calculates acquisition, finally this analog computation apparent resistivity value and measured visual resistivity value are constantly compared, matching, finally make forward modelling value and measured value reach unanimity or error minimum, obtain inverting resistivity value in each grid division unit.
Data interpretation: according to the well geoelectrical resistivity value of above-mentioned acquisition in conjunction with prospecting by boring achievement and rock resistivity characteristic, carry out analysis to search coverage geologic condition to judge, higher than normal resistance rate more than 3 times is high resistant exceptions area, and be low resistance abnormity area lower than normal resistance rate more than 3 times, carry out judgement in conjunction with probing target to high and low resistance abnormal area to explain, and according to exceptional value size semi-quantitative assessment strata structure and structural attitude.
Corresponding data processing and data interpretation is carried out through the above-mentioned power supply current value to record, loop current value and the potential value that measures, achieve the explication de texte to three dimensions earth-electricity model, anomaly extracting and geologic interpretation, extend the architectonic understanding in well ground.
Fig. 5 be the well of the embodiment of the present invention two combine the process flow diagram of parallel electrical method method of testing.Parallel electrical method method of testing is combined on this well ground, combine parallel electrical method test macro with being applied to well, parallel electrical method test macro is combined on well ground in the present embodiment, and to combine parallel electrical method test macro identical the well of its structure Composition and distribution and above-described embodiment, so place repeats no more.
On the basis of above-described embodiment, when the present embodiment well combine that parallel electrical method method of testing adopts that well Point Source is powered, in well dipole source power and well combine power supply mode power time, comprise the following steps:
Step 501: control module controls by launcher control system the mode that at least two emitting electrodes adopt well Point Sources to power and launches DC pulse signal;
Step 502: at least two surface collection collections described in receiving element receives divide the potential value standing in and measure when well Point Source is powered;
Step 503: control module controls at least two emitting electrodes by launcher control system and adopts the mode that in well, dipole source is powered to launch DC pulse signal;
Step 504: receiving element receives at least two surface collection collections and divides the potential value standing in and measure when dipole source is powered in well;
Step 505: control module gathers by launcher control system and at least two surface collection the mode that substation combines power supply with controlling at least two emitting electrodes and at least two potential electrode employing wells and launches DC pulse signal;
Step 506: receiving element receives at least two surface collection collections and divides the potential value measured when combining power supply with standing in well;
Step 507: described in processing unit controls according to described control module, at least two emitting electrodes adopt well Point Source to power respectively, in well dipole source power or well combine power supply the power supply current value of mode when launching DC pulse signal, described at least two emitting electrodes or described at least two potential electrode of described launcher control system record adopt well Point Source to power, in well dipole source power or well combine power supply the loop current value of mode when launching DC pulse signal and the spatial relation of described potential value and each electrode, the resistivity 3-D data volume of Inversion Calculation boring peripheral region, flat sectional drawing needed for formation,
Step 508: described processing unit is according to the geologic feature of the boring resistivity 3-D data volume of peripheral region or flat sectional drawing analysis boring peripheral region.
Parallel electrical method method of testing is combined according to the well of this enforcement, adopt that well Point Source is powered, in well dipole source power and well combine power supply mode power, obtain and organize power supply current value, the current value in loop and potential value more, resistivity 3-D data volume or the flat sectional drawing of boring peripheral region is set up according to the above-mentioned electrical parameter obtained, and then analysis judgement is carried out to the geologic feature of boring peripheral region, achieve the explication de texte to three dimensions earth-electricity model, anomaly extracting and geologic interpretation, extend the architectonic understanding in well ground.
Further, above-mentioned well Point Source power, in well dipole source power and well combine power supply mode be respectively:
The well Point Source mode of powering for: control module to be controlled respectively by launcher control system described in an emitting electrode at least two emitting electrodes form loop with the ground-electrode being positioned at ground and power;
The mode that in well, dipole source is powered for: control module to be controlled by launcher control system described in any two emitting electrodes at least two emitting electrodes form loop and power;
The mode of combining power supply well for: control module by launcher control system and described at least two surface collection gather substation control described in an emitting electrode at least two emitting electrodes form loop with described each surface collection potential electrode gathered at least two potential electrode of substation and also power respectively.
Further, combine the method for testing of parallel electrical method test the well that the present embodiment provides, also comprise:
Control module controls program control winch by winch controller makes multi-electrode sheathed cable move in the borehole, and described in making, at least two positions of emitting electrode in described boring change;
After the described position of at least two emitting electrodes in described boring changes, described control module again by described launcher control system or described at least two surface collection gather substation control respectively described at least two emitting electrodes or described at least two potential electrode adopt that well Point Source is powered, in well dipole source power or well combine power supply mode launch DC pulse signal.
Also need to be described, the size of current of at least two emitting electrode transmitting DC pulse signals described in described launcher control system also controls.
Further, parallel electrical method method of testing is combined to the power supply current value collected in this well ground, loop current value and potential value carry out solution and compile, singular value is wherein rejected, generate valid data, extract the data that different power supply mode collects, on well ground, test zone sets up volume coordinate, corresponding data processing software is utilized to carry out 3 D resistivity inverting to test zone, according to the resistivity value of inverting, extract and draw corresponding resistivity 3-D data volume and flat sectional drawing, in conjunction with boring region prospecting by boring achievement and rock resistivity characteristic, carry out analysis to probing Regional Geological Conditions to judge, realize three dimensions earth-electricity model explication de texte, anomaly extracting and geologic feature are explained.
Alternatively, at least two above-mentioned emitting electrodes comprise 32, and described at least two surface collection gather substation and comprise 6, and described at least two potential electrode comprise 32.
Parallel electrical method method of testing is combined on well ground provided by the invention, not only can be powered by well Point Source, in well dipole source power or well combine the various ways such as power supply and power, and power supply mode can be controlled flexibly, in addition, the real-time simple process function i ntegration of power supply, data acquisition and data is integrated by the present invention, and dirigibility is strong, and systematization, intelligence degree are high, therefore, improve the resolution characteristic to space, well ground by means of the electrical parameter obtained.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (10)
1. combine a parallel electrical method test macro well, it is characterized in that, comprising: VTIC subsystem, surface collection acquisition subsystem and master control and processing subsystem in well;
In described well, VTIC subsystem comprises: at least two emitting electrodes, the multi-electrode sheathed cable of at least two emitting electrodes described in connection, control the described multi-electrode sheathed cable program control winch of movement and winch controller in the borehole, described in control, the launcher control system of at least two emitting electrode transmitting DC pulse signals, is the supplying cell that described at least two emitting electrodes are powered;
Described surface collection acquisition subsystem comprises: at least two surface collection gather substation, and each surface collection gathers substation and comprises at least two potential electrode, and at least two potential electrode that each surface collection gathers substation are linked together by cable;
Described master control and processing subsystem comprise: control module, receiving element and processing unit, and described control module gathers substation with described launcher control system and described at least two surface collection and is connected respectively;
Described control module be used for by described launcher control system or described at least two surface collection gather substation control respectively described at least two emitting electrodes or described at least two potential electrode adopt that well Point Source is powered, in well dipole source power or well combine power supply mode launch DC pulse signal;
Described receiving element divide at least two surface collection collections described in receiving stand in that well Point Source is powered, dipole source is powered or the potential value measured when combining the mode of power supply of well ground in well;
Described processing unit is used at least two emitting electrodes according to described control module control and adopts well Point Source to power respectively, in well dipole source power or well combine power supply the power supply current value of mode when launching DC pulse signal, described at least two emitting electrodes or described at least two potential electrode of described launcher control system record adopt well Point Source to power, in well dipole source power or well combine power supply the loop current value of mode when launching DC pulse signal and the spatial relation of described potential value and each electrode, to hole described in Inversion Calculation the resistivity 3-D data volume of peripheral region, flat sectional drawing required for formation, the geologic feature of described boring peripheral region is analyzed according to the resistivity 3-D data volume of described boring peripheral region or flat sectional drawing.
2. parallel electrical method test macro is combined on well ground according to claim 1, it is characterized in that, the described well Point Source mode of powering for: described control module to be controlled respectively by described launcher control system described in an emitting electrode at least two emitting electrodes form loop with the ground-electrode being positioned at ground and power;
The mode that in described well, dipole source is powered for: described control module to be controlled by described launcher control system described in any two emitting electrodes at least two emitting electrodes form loop and power;
The mode of combining power supply described well for: described control module by described launcher control system and described at least two surface collection gather substation control described in a potential electrode gathering at least two potential electrode of substation of an emitting electrode at least two emitting electrodes and described each surface collection form loop and power.
3. parallel electrical method test macro is combined on well ground according to claim 1 and 2, it is characterized in that, described control module also makes described multi-electrode sheathed cable move in described boring for controlling described program control winch by described winch controller, described in making, at least two positions of emitting electrode in described boring change, after the described position of at least two emitting electrodes in described boring changes, again described in being controlled respectively by described launcher control system or described at least two surface collection collection substation, at least two emitting electrodes or described at least two potential electrode adopt well Point Source to power, in well dipole source power or well combine power supply mode launch DC pulse signal.
4. combine parallel electrical method test macro well according to claim 1 and 2, it is characterized in that, the size of current of DC pulse signals also launched by described launcher control system at least two emitting electrodes described in controlling.
5. parallel electrical method test macro is combined on well ground according to claim 1 and 2, it is characterized in that, described at least two emitting electrodes comprise 32, described at least two surface collection gather substation and comprise 6, and described surface collection gathers at least two potential electrode in each substation of substation and comprises 32.
6. combine a parallel electrical method method of testing well, combine parallel electrical method test macro with being applied to well, described well ground is combined parallel electrical method test macro and is comprised: VTIC subsystem, surface collection acquisition subsystem and master control and processing subsystem in well;
In described well, VTIC subsystem comprises: at least two emitting electrodes, the multi-electrode sheathed cable of at least two emitting electrodes described in connection, control the described multi-electrode sheathed cable program control winch of movement and winch controller in the borehole, described in control, the launcher control system of at least two emitting electrode transmitting DC pulse signals, is the supplying cell that described at least two emitting electrodes are powered;
Described surface collection acquisition subsystem comprises: at least two surface collection gather substation, and each surface collection gathers substation and comprises at least two potential electrode, and at least two potential electrode that each surface collection gathers substation are linked together by cable;
Described master control and processing subsystem comprise: control module, receiving element and processing unit, and described control module gathers substation with described launcher control system and described at least two surface collection and is connected respectively;
Described control module be used for by described launcher control system or described at least two surface collection gather substation control respectively described at least two emitting electrodes or described at least two potential electrode adopt that well Point Source is powered, in well dipole source power or well combine power supply mode launch DC pulse signal;
Described receiving element divide at least two surface collection collections described in receiving stand in that well Point Source is powered, dipole source is powered or the potential value measured when combining the mode of power supply of well ground in well;
Described processing unit is used at least two emitting electrodes according to described control module control and adopts well Point Source to power respectively, in well dipole source power or well combine power supply the power supply current value of mode when launching DC pulse signal, described at least two emitting electrodes or described at least two potential electrode of described launcher control system record adopt well Point Source to power, in well dipole source power or well combine power supply the loop current value of mode when launching DC pulse signal and the spatial relation of described potential value and each electrode, to hole described in Inversion Calculation the resistivity 3-D data volume of peripheral region, flat sectional drawing required for formation, the geologic feature of described boring peripheral region is analyzed according to the resistivity 3-D data volume of described boring peripheral region or flat sectional drawing,
It is characterized in that, described well ground is combined parallel electrical method method of testing and is comprised:
The mode that at least two emitting electrodes described in described control module is controlled by described launcher control system adopt well Point Source to power launches DC pulse signal;
At least two surface collection collections described in described receiving element receives divide the potential value standing in and measure when described well Point Source is powered;
Described in described control module is controlled by described launcher control system, at least two emitting electrodes adopt the mode that in well, dipole source is powered to launch DC pulse signal;
At least two surface collection collections described in described receiving element receives divide the potential value standing in and measure when dipole source is powered in described well;
The mode that described control module combines power supply by described launcher control system and described at least two surface collection with gathering at least two emitting electrodes described in substation control and described at least two potential electrode employing well launches DC pulse signal;
Described in described receiving element receives, at least two surface collection collections divide the potential value measured when combining power supply with standing in described well;
Described in described processing unit controls according to described control module, at least two emitting electrodes adopt well Point Source to power respectively, in well dipole source power or well combine power supply the power supply current value of mode when launching DC pulse signal, described at least two emitting electrodes or described at least two potential electrode of described launcher control system record adopt well Point Source to power, in well dipole source power or well combine power supply the loop current value of mode when launching DC pulse signal and the spatial relation of described potential value and each electrode, to hole described in Inversion Calculation the resistivity 3-D data volume of peripheral region, flat sectional drawing needed for formation,
Described processing unit analyzes the address feature of described boring peripheral region according to the resistivity 3-D data volume of described boring peripheral region or flat sectional drawing.
7. parallel electrical method method of testing is combined on well ground according to claim 6, it is characterized in that, the described well Point Source mode of powering for: described control module to be controlled respectively by described launcher control system described in an emitting electrode at least two emitting electrodes form loop with the ground-electrode being positioned at ground and power;
The mode that in described well, dipole source is powered for: described control module to be controlled by described launcher control system described in any two emitting electrodes at least two emitting electrodes form loop and power;
The mode of combining power supply described well for: described control module by described launcher control system and described at least two surface collection gather substation control described in a potential electrode gathering at least two potential electrode of substation of an emitting electrode at least two emitting electrodes and described each surface collection form loop and power.
8. combine parallel electrical method method of testing the well according to claim 6 or 7, it is characterized in that, also comprise:
Described control module controls described program control winch by described winch controller makes described multi-electrode sheathed cable move in described boring, and described in making, at least two positions of emitting electrode in described boring change;
After the described position of at least two emitting electrodes in described boring changes, described control module again by described launcher control system or described at least two surface collection gather substation control respectively described at least two emitting electrodes or described at least two potential electrode adopt that well Point Source is powered, in well dipole source power or well combine power supply mode launch DC pulse signal.
9. combine parallel electrical method method of testing the well according to claim 6 or 7, it is characterized in that, described launcher control system, the size of current of at least two emitting electrode transmitting DC pulse signals described in also controlling.
10. combine parallel electrical method method of testing the well according to claim 6 or 7, it is characterized in that, described at least two emitting electrodes comprise 32, described at least two surface collection gather substation and comprise 6, and described surface collection gathers each substation at least two potential electrode in substation and comprises 32.
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| CN106443794A (en) * | 2016-08-30 | 2017-02-22 | 安徽惠洲地质安全研究院股份有限公司 | Three-dimensional parallel electrical prospecting observation system and geological body exploration method |
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