CN103149589A - Igneous rock oil and gas exploration method and device - Google Patents
Igneous rock oil and gas exploration method and device Download PDFInfo
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Abstract
The invention provides an igneous rock oil and gas exploration method and an igneous rock oil and gas exploration device. The method comprises the following steps of generating crater position and igneous rock lithofacies information according to the position of an igneous rock reservoir and characteristic information; generating geophysical reflection characteristic data according to seismic facies analysis, and determining a distribution range of advantageous lithofacies; calculating a stratigraphic strike-slip distance of a deep igneous rock mechanism according to a matching relation of target stratum lithofacies of a volcanic edifice on two sides of a fracture and a corresponding relation of igneous rocks of a middle-shallow layer on the two sides of the fracture; analyzing logging response data of the igneous rocks, and generating advantageous lithology distribution information and thickness data of the deep igneous rock mechanism through natural gamma seismic inversion; acquiring a development part of the fracture of the igneous rock reservoir by using means such as deep and shallow resistivity difference inversion; and generating igneous rock oil and gas reservoir information in the development part through cluster analysis of seismic attributes and two-phase media-based oil and gas detection. By the invention, the accuracy of exploring and predicting the igneous rock oil and gas reservoir and the drilling success rate can be improved.
Description
Technical field
The present invention relates to the technical field of reservoir exploration, particularly, relate to a kind of pyrogenic rock Petroleum Exploration Methods and device.
Background technology
During Eleventh Five-Year Plan, " 12 ", pyrogenic rock hydrocarbon-bearing pool has become one of key areas of oil-gas exploration.But the exploration engineering that the seismic technology of existing pyrogenic rock exploration also only limits to conventional clastic reservoir rock is applied in the middle of the exploration of pyrogenic rock.Not for the perfect exploration engineering of pyrogenic rock oil-gas exploration, especially research and development do not utilize the underground prospecting prediction technology of enriching the three dimensional seismic data of geological information that contains for pyrogenic rock oil reservoir characteristics at present.It is not fine the exploration engineering of conventional clastic reservoir rock being applied in the effect of analyzing exploration in the middle of the exploration of pyrogenic rock, and analysis result and reservoir actual distribution differ greatly.Tracing it to its cause, is because pyrogenic rock hydrocarbon-bearing pool and clastic oil-gas pools distribution characteristics and Oil ﹠ Gas Reservoir Formation Conditions difference are larger, main difference comprise following some:
(1) pyrogenic rock is different with petroclastic rock rock mass formation mechanism.
Petroclastic rock is fragmental products through hydrodynamic carrying, deposits and form, and pyrogenic rock is magma by rupturing or volcanic vent is invaded or ejection earth's surface condensation forms.
(2) reservoir quality of pyrogenic rock and petroclastic rock is different.
The clastic reservoir rock majority belongs to the pore type reservoir, and igneous reservoirs belongs to the slit formation reservoir, and because the non-average of fracture-type reservoir is stronger, so the slit formation reservoir is than the earthquake prediction difficulty increasing of pore type reservoir.
(3) the geophysics response characteristic is different.
The country rock of Effective Reservoirs in petroclastic rock (sandstone) and its alternating layers deposition has the difference of obvious geophysics response characteristic aspect, and the pyrogenic rock of the advantage reservoir in pyrogenic rock (as the neutral rock class) and its alternating layers does not have the difference of obvious geophysics response characteristic aspect.
Based on above-mentioned difference, determined that the exploration engineering of existing conventional clastic reservoir rock is when practical application is carried out in the igneous reservoirs exploration, can not carry out analysis and prediction to the reservoir situation well, acquired results and actual reservoir situation difference are larger, bring great inconvenience for exploration and the practice of construction work of pyrogenic rock hydrocarbon-bearing pool reservoir, also reduced the exploration success ratio simultaneously.
Therefore, the pyrogenic rock reservoir exploration is as one of Liaohe Oil Field three large Exploration Domain, and supporting exploration engineering tackling key problem research work is extremely urgent with it.
Summary of the invention
The fundamental purpose of the embodiment of the present invention is to provide a kind of pyrogenic rock Petroleum Exploration Methods and device, thereby improves accuracy and success ratio to the prediction of pyrogenic rock hydrocarbon-bearing pool reservoirs exploration.
To achieve these goals, the embodiment of the present invention provides a kind of pyrogenic rock Petroleum Exploration Methods, and the method comprises: according to position and characteristic information generation position, crater and the pyrogenic rock petrofacies information at igneous reservoirs place; By the described pyrogenic rock petrofacies information in position, described crater is carried out seismic facies analysis, generate the geophysics reflectance signature data of pyrogenic rock; Determine the distribution range of advantage petrofacies according to described geophysics reflectance signature data; In the distribution range of described advantage petrofacies, will section coherence time, seismic section and seismic experiment models coupling, according to the zone of interest petrofacies of Volcanic Mechanism at the pyrogenic rock of fracture both sides matching relationship and the middle-shallow layer corresponding relation in the fracture both sides, the stratum of calculating deep layer pyrogenic rock mechanism walk actual relative movement from; Analyze the log response data of pyrogenic rock, in conjunction with described stratum walk actual relative movement from, generate advantage lithology distributions information and the thickness data of described deep layer pyrogenic rock mechanism by the GR seismic inversion; Utilize seismic attributes analysis, be concerned with along inclination layer scanning, the poor inverting of deep and shallow resistivity and edge layer and obtain the growth position in igneous reservoirs crack in described advantage lithology distributions information; Generate pyrogenic rock hydrocarbon storage information by cluster analysis of seismic attributes with based on the oil and gas detection of two-phase media in described growth position.
Further, determine the distribution range of advantage petrofacies according to described geophysics reflectance signature data, comprising: described geophysics reflectance signature data are combined the reflective-mode of setting up pyrogenic rock with drilling data; Determine the distribution range of advantage petrofacies according to described reflective-mode
Further, after the advantage lithology distributions information and thickness data of the described deep layer pyrogenic rock of generation mechanism, described pyrogenic rock Petroleum Exploration Methods also comprises: actual relative movement is walked from, advantage lithology distributions information and thickness data combination in position, described crater and pyrogenic rock petrofacies information, the distribution range of advantage petrofacies, stratum, generate the palaeogeomorphology characteristic information that pyrogenic rock forms period.
Further, position and the characteristic information at described igneous reservoirs place comprise: the size structure of archeo magnetism, pyrogenic rock thickness and volcano dust.
Further, described geophysics reflectance signature data comprise: pyrogenic rock is at frequency, phase place, amplitude vertical, laterally spread.
The embodiment of the present invention also provides a kind of pyrogenic rock oil-gas exploration device, and described device comprises: Igneous rock facies and position generation unit are used for position and characteristic information generation position, crater and pyrogenic rock petrofacies information according to the igneous reservoirs place; Geophysics reflectance signature data generating unit is used for generating the geophysics reflectance signature data of pyrogenic rock by the described pyrogenic rock petrofacies information in position, described crater is carried out seismic facies analysis; Advantage lithofacies distribution scope determining unit is for determine the distribution range of advantage petrofacies according to described geophysics reflectance signature data; Walk actual relative movement from computing unit, be used in the distribution range of described advantage petrofacies, will section coherence time, seismic section and seismic experiment models coupling, according to the zone of interest petrofacies of Volcanic Mechanism at the pyrogenic rock of fracture both sides matching relationship and the middle-shallow layer corresponding relation in the fracture both sides, the stratum of calculating deep layer pyrogenic rock mechanism walk actual relative movement from; Advantage lithology distributions information and thickness data generation unit be used for to be analyzed the log response data of pyrogenic rock, in conjunction with described stratum walk actual relative movement from, generate advantage lithology distributions information and the thickness data of described deep layer pyrogenic rock mechanism by the GR seismic inversion; The growth position generation unit in igneous reservoirs crack is used for utilizing seismic attributes analysis, along inclination layer scanning, the poor inverting of deep and shallow resistivity and be concerned with along layer and generate the growth position in igneous reservoirs crack in described advantage lithology distributions information; The hydrocarbon storage information generating unit is used for generating pyrogenic rock hydrocarbon storage information by cluster analysis of seismic attributes with based on the oil and gas detection of two-phase media at described growth position.
Further, described advantage lithofacies distribution scope determining unit comprises: reflective-mode is set up module, is used for described geophysics reflectance signature data, is combined the reflective-mode of setting up pyrogenic rock with drilling data; Advantage lithofacies distribution scope determination module is for determine the distribution range of advantage petrofacies according to described reflective-mode.
Further, described pyrogenic rock oil-gas exploration device also comprises: palaeogeomorphology characteristic information generation unit, be used for actual relative movement is walked from, advantage lithology distributions information and thickness data combination in position, described crater and pyrogenic rock petrofacies information, the distribution range of advantage petrofacies, stratum, generate the palaeogeomorphology characteristic information that pyrogenic rock forms period.
Further, position and the characteristic information at described igneous reservoirs place comprise: the size structure of archeo magnetism, pyrogenic rock thickness and volcano dust.
Further, described geophysics reflectance signature data comprise: pyrogenic rock is at frequency, phase place, amplitude vertical, laterally spread.
The invention has the beneficial effects as follows: according to the rock mass of pyrogenic rock form mechanism, reservoir quality, geophysics response characteristic form a kind of for pyrogenic rock Petroleum Exploration Methods and device, thereby improve precision and probing success ratio to the prediction of pyrogenic rock hydrocarbon-bearing pool reservoirs exploration.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, during the below will describe embodiment, the accompanying drawing of required use is done to introduce simply, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the process flow diagram according to the pyrogenic rock Petroleum Exploration Methods of the embodiment of the present invention;
Fig. 2 is the EASTERN DEPRESSION Red Star-husky one section pyrogenic rock distribution plan in building area according to the embodiment of the present invention;
Fig. 3 is the husky three epimere pyrogenic rock thickness charts of Red Star-Re river Tai Area according to the embodiment of the present invention;
Fig. 4 is the GR seismic inversion prediction trachyte seismic cross-section according to the embodiment of the present invention;
Fig. 5 is the trachyte thickness flat distribution map according to the embodiment of the present invention;
Fig. 6 is the differential resistivity inversion prediction trachyte crack flat distribution map according to the embodiment of the present invention;
Fig. 7 is the structural drawing according to the pyrogenic rock oil-gas exploration device 1 of the embodiment of the present invention;
Fig. 8 is the structural drawing according to the advantage lithofacies distribution scope determining unit 4 of the embodiment of the present invention;
Fig. 9 is another structural drawing according to the pyrogenic rock oil-gas exploration device 1 of the embodiment of the present invention.
Embodiment
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 clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
The embodiment of the present invention provides a kind of pyrogenic rock Petroleum Exploration Methods and device.The present invention is described in detail below in conjunction with accompanying drawing.
Embodiment one
The embodiment of the present invention provides a kind of pyrogenic rock Petroleum Exploration Methods, and as shown in Figure 1, the step of the method comprises:
Step 101: according to position and characteristic information generation position, crater and the pyrogenic rock petrofacies information at igneous reservoirs place.
Particularly, according to pyrogenic rock " shape, body, structure " research method, namely the means of evening up by 3-D data volume visualization technique, ancient planation surface, along methods such as layer time (or degree of depth) sections, in conjunction with the position at the igneous reservoirs place of drilling well exposure and the petrofacies information that characteristic information is determined position, crater and pyrogenic rock.Wherein, the position at igneous reservoirs place and characteristic information comprise: the size structure of archeo magnetism, pyrogenic rock thickness and volcano dust.
Step 102: by the pyrogenic rock petrofacies information in the position, crater is carried out seismic facies analysis, generate the geophysics reflectance signature data of pyrogenic rock.
In this step, be to utilize waveform analysis techniques, determine that pyrogenic rock is in geophysics reflectance signature data such as frequency vertical, laterally spread, phase place, amplitudes.
Step 103: the distribution range of determining the advantage petrofacies according to earth physical reflection characteristic.
The geophysics reflectance signature data that obtain in step 102 are combined from well data set up the reflective-mode of different petrofacies band feature pyrogenic rock, thereby determine the favourable petrofacies band of pyrogenic rock, the i.e. distribution range of the advantage petrofacies of igneous reservoirs.
Step 104: in the distribution range of advantage petrofacies, will section coherence time, seismic section and seismic experiment models coupling, according to the zone of interest petrofacies of Volcanic Mechanism at the pyrogenic rock of fracture both sides matching relationship and the middle-shallow layer corresponding relation in the fracture both sides, the stratum of calculating deep layer pyrogenic rock mechanism walk actual relative movement from.
walk on the stratum of determining deep layer pyrogenic rock mechanism actual relative movement from the time, be subjected to the position of deep layer pyrogenic rock mechanism and the impact of reservoir situation, the relevant information of deep layer pyrogenic rock mechanism can't directly obtain, and with respect to deep layer pyrogenic rock mechanism, the data base of middle-shallow layer pyrogenic rock is good, feature is obvious, be easy to identification, therefore, in practical operation, preferably, obvious at fracture both sides matching relationship and middle-shallow layer feature by the zone of interest petrofacies of Volcanic Mechanism, the pyrogenic rock that is easy to identify is at the corresponding relation of fracture both sides, calculate the stratum that obtains deep layer pyrogenic rock mechanism walk actual relative movement from.
Step 105: analyze the log response data of pyrogenic rock, in conjunction with the stratum walk actual relative movement from, generate advantage lithology distributions information and the thickness data of deep layer pyrogenic rock mechanism by the GR seismic inversion.
Because favourable igneous rocks (as trachyte) is very approaching with the pyrogenic rock wave impedance of same lithology series, can't utilize wave impedance to analyze Favorable Reservoir, after the log response of analyzing pyrogenic rock, adopt signature logging curve (as GR) seismic inversion, generate distributed intelligence and the thickness data of Favorable Reservoir in pyrogenic rock (advantage lithology).
Step 106: utilize seismic attributes analysis, be concerned with along inclination layer scanning, the poor inverting of deep and shallow resistivity and edge layer and obtain the growth position in igneous reservoirs crack in advantage lithology distributions information.
Step 107: generate pyrogenic rock hydrocarbon storage information by cluster analysis of seismic attributes with based on the oil and gas detection of two-phase media in growing the position.
By after fluid-filled, the multiple sensitive earthquake attribute of reservoir will produce extremely at Reservoir Fracture; The seismic response of " low-frequency resonance, high frequency attenuation " will appear in the oily Reservoir Body.For this kind phenomenon, by with cluster analysis of seismic attributes and the method that combines based on the oil and gas detection of bi-directional medium, thereby generate pyrogenic rock hydrocarbon storage information comparatively accurately.
Wherein, above-mentioned walk actual relative movement from refer to the plane of igneous rock formation under the dextrorotation effect of stress walk actual relative movement from; The Effective Reservoirs thickness profile data of above-mentioned thickness data is in the distribution range of described advantage petrofacies.
Utilize above-mentioned pyrogenic rock Petroleum Exploration Methods, characteristic according to pyrogenic rock, to the position of igneous reservoirs, favourable petrofacies band (advantage lithofacies distribution scope), walk actual relative movement from, fracture development position, oil and gas reservoir distribution situation etc. analyzes and obtains relevant information, thereby improve precision and probing success ratio to the prediction of pyrogenic rock hydrocarbon-bearing pool reservoirs exploration.
Further, above-mentioned steps 103 specifically comprises:
Geophysics reflectance signature data are combined the reflective-mode of setting up pyrogenic rock with drilling data;
Determine the distribution range of advantage petrofacies according to reflective-mode.
Further, after above-mentioned steps 105, the pyrogenic rock Petroleum Exploration Methods of the embodiment of the present invention also comprises: actual relative movement is walked from, advantage lithology distributions information and thickness data combination in position, crater and pyrogenic rock petrofacies information, the distribution range of advantage petrofacies, stratum, generate the palaeogeomorphology characteristic information that pyrogenic rock forms period.Because step 101 ~ step 105 is all only to reflect the formation form of igneous reservoirs from the data message of a side, therefore, utilize visualization technique, portray trachytic spatial form; And by the flattening technology, the palaeogeomorphology feature that pyrogenic rock forms period is summarized, thereby understand more intuitively the spread form of whole igneous reservoirs.
the seismic technology of pyrogenic rock reservoir exploration is a cover series technique that grows up in the production practices of pyrogenic rock oil-gas exploration, comprise the favourable lithology of the favourable petrofacies band of crater location technology → pyrogenic rock (distribution ranges of advantage petrofacies) forecasting techniques → pyrogenic rock (advantage lithology) forecasting techniques → pyrogenic rock FRACTURE PREDICTION technology → pyrogenic rock oil-gas possibility detection technique → Comprehensive Assessment Technology, thereby formed a complete seismic exploration technique, every gordian technique is in the distribution of igneous reservoirs, the crack, have good applicability and operability in oil and gas detection.
The seismic technology of pyrogenic rock oil-gas exploration of the present invention successively is applied in the pyrogenic rock hydrocarbon-bearing pool research such as the Jiazhangsi area diabase, Oulituozi area trachyte, Huangshatuo area trachyte, Qinglongtai area graniton of Eastern Sag of Liaohe Depression, acquired results and the reservoir actual distribution situation goodness of fit are higher, promoted the use of at present other area of Liaohe Depression, this achievement has certain guidance and reference function with the comprehensive, advanced of its technology to pyrogenic rock research both domestic and external.
Below in conjunction with an example that is applied in the exploration practices of pyrogenic rock hydrocarbon-bearing pool in Eastern Sag of Liaohe Depression Huangshatuo area Paleogene System husky three stage casings, the process of the pyrogenic rock Petroleum Exploration Methods that the embodiment of the present invention is provided is elaborated.
At first, carry out Collection and analysis by the size structure information to archeo magnetism, pyrogenic rock thickness and the volcano dust of Igneous rock facies, obtain the positional information of position, crater and pyrogenic rock.
By the pyrogenic rock seismic facies analysis, can learn that there are the reflection seismic reflectance signatures such as tabular, random hilllock shape, earthworm shape in Huangshatuo area, and favourable petrofacies band earthworm shape echo area east northeast is to spread, i.e. the distribution range of advantage petrofacies.
Then, utilize empirical model and seismic data binding analysis, draw Ou Li and stick together that to walk sliding distance be 750m to regional Europe 26 wellblock pyrogenic rock right laterals, it is 3.0km that Huangshatuo area pyrogenic rock right lateral is walked sliding distance.need to prove, walk on the stratum of determining deep layer pyrogenic rock mechanism actual relative movement from the time, be subjected to the position of deep layer pyrogenic rock mechanism and the impact of reservoir situation, the relevant information of deep layer pyrogenic rock mechanism can't directly obtain, and with respect to deep layer pyrogenic rock mechanism, the data base of middle-shallow layer pyrogenic rock is good, feature is obvious, be easy to identification, therefore, in practical operation, preferably, obvious at fracture both sides matching relationship and middle-shallow layer feature by the zone of interest petrofacies of Volcanic Mechanism, the pyrogenic rock that is easy to identify is at the corresponding relation of fracture both sides, calculate the stratum that obtains deep layer pyrogenic rock mechanism walk actual relative movement from.
In Dongying period Oligocene epoch, the Eastern Sag of Liaohe Depression generation area is walked sliding extrusion struc-tural movement, the cut dislocation of the pyrogene rock mass of early origin.Fig. 2 is the EASTERN DEPRESSION Red Star-husky one section pyrogenic rock distribution plan in building area according to the embodiment of the present invention, Fig. 3 is the husky three epimere pyrogenic rock thickness charts of Red Star-Re river Tai Area according to the embodiment of the present invention, as shown in Figures 2 and 3, from Red Star-husky one section pyrogenic rock distributes in the area, building, drive the horizontal dextral slip distance of palm temple fracture probably in 4.5 ~ 5km left and right.According to this fact, analysis is learnt should growth " second half " rock mass corresponding with inferior section pyrogene rock mass on Yu Lou, hot river platform sand three in inferior section on Hongxing area sand three.And in the construction of the actual well drilled in later stage, red 22(2006 finishing drilling, industrial gas), red 23(2008 finishing drilling formation testing:, formation testing: probing commercial oil) has confirmed above-mentioned analysis result.
Through above-mentioned positional information to pyrogenic rock, advantage lithofacies distribution scope and walk actual relative movement from analysis, can understand from directivity and position igneous reservoirs.Below to analyze and distinguish from characteristic for the igneous reservoirs that analyzes.
In igneous reservoirs, the rock storage of multiple different lithology is arranged, wherein include " subsiliceous rock " (as Irish touchstone), and " neutral rock " (as trachyte), for the probing and collection of hydrocarbon-bearing pool, favourable lithology (advantage lithology) is neutral rock.And in the situation due to trachyte and Irish touchstone association, both geophysical character are similar, can't distinguish with traditional Impedance Inversion, therefore, be to distinguish above-mentioned two kinds of lithology by " GR (GR) seismic inversion " in the embodiment of the present invention, distribute thereby effectively obtain trachyte.As shown in Figure 4 and Figure 5, through the GR inverting, make trachyte vertically can identify, can draw this area along east northeast to growing a plurality of trachyte mid-depths.
Further, utilize seismic attributes analysis, along inclination layer scanning, differential resistivity inverting, obtain the growth position in igneous reservoirs crack along technical Analysis such as layer are relevant.Fig. 6 is the differential resistivity inversion prediction trachyte crack flat distribution map according to the embodiment of the present invention, as shown in Figure 6, the analysis showed that the local area fracture development has inhomogeneity, on macroscopic view, Fractured Zone is consistent with the trend of trunk fracture, have consistance with the distribution of mid-depth, be positioned at structure curvature maximum position.
Then, by cluster analysis of seismic attributes with obtain the hydrocarbon storage information of igneous reservoirs based on the oil and gas detection of two-phase media.The result of oil and gas detection can confirm that oil gas is east northeast to the ribbon spread, and the district is substantially identical with known hydrocarbon occurrence.
Above-mentioned application achievements shows, the pyrogenic rock Petroleum Exploration Methods of the embodiment of the present invention has instructed exploration deployment effectively.Reported 4,272 ten thousand tons to verify petroleum-in-place at the pyrogenic rock oil reservoir, implemented at present the district and drive a well altogether 33 mouthfuls, on average produced crude oil 802t daily, yearly capacity can reach 30.0 * 10
4More than t, indicated that the exploration take single pyrogenic rock as zone of interest has obtained important breakthrough.
In sum, by the pyrogenic rock Petroleum Exploration Methods that uses the embodiment of the present invention to provide, characteristic according to pyrogenic rock, to the position of igneous reservoirs, favourable petrofacies band (advantage lithofacies distribution scope), walk actual relative movement from, fracture development position, the information such as oil and gas reservoir distribution situation, targetedly relevant information is analyzed and obtained in the hydrocarbon-bearing pool of igneous reservoirs, thereby improve precision and probing success ratio to the prediction of pyrogenic rock hydrocarbon-bearing pool reservoirs exploration.
Embodiment two
The embodiment of the present invention also provides a kind of pyrogenic rock oil-gas exploration device, and as shown in Figure 7, pyrogenic rock oil-gas exploration device 1 comprises:
Igneous rock facies and position generation unit 2 are used for position and characteristic information generation position, crater and pyrogenic rock petrofacies information according to the igneous reservoirs place; Particularly, according to pyrogenic rock " shape, body, structure " research method: namely the means of evening up by 3-D data volume visualization technique, ancient planation surface, along methods such as layer time (or degree of depth) sections, in conjunction with the position at the igneous reservoirs place of drilling well exposure and the petrofacies information that characteristic information is determined position, crater and pyrogenic rock.Wherein, the position at igneous reservoirs place and characteristic information comprise: the size structure of archeo magnetism, pyrogenic rock thickness and volcano dust;
Geophysics reflectance signature data generating unit 3 is used for generating the geophysics reflectance signature data of pyrogenic rock by the pyrogenic rock petrofacies information in the position, crater is carried out seismic facies analysis.Particularly, be to utilize waveform analysis techniques, determine that pyrogenic rock is in geophysics reflectance signature data such as frequency vertical, laterally spread, phase place, amplitudes;
Advantage lithofacies distribution scope determining unit 4 is for determine the distribution range of advantage petrofacies according to earth physical reflection characteristic.The geophysics reflectance signature data that geophysics reflectance signature data generating unit 3 is generated combine from well data and set up the reflective-mode of different petrofacies band feature pyrogenic rock, thereby determine the favourable petrofacies band of pyrogenic rock, i.e. the distribution range of the advantage petrofacies of igneous reservoirs;
Walk actual relative movement from computing unit 5, be used in the distribution range of advantage petrofacies, will section coherence time, seismic section and seismic experiment models coupling, according to the zone of interest petrofacies of Volcanic Mechanism at the pyrogenic rock of fracture both sides matching relationship and the middle-shallow layer corresponding relation in the fracture both sides, the stratum of calculating deep layer pyrogenic rock mechanism walk actual relative movement from.walk on the stratum of determining deep layer pyrogenic rock mechanism actual relative movement from the time, be subjected to the position of deep layer pyrogenic rock mechanism and the impact of reservoir situation, the relevant information of deep layer pyrogenic rock mechanism can't directly obtain, and with respect to deep layer pyrogenic rock mechanism, the data base of middle-shallow layer pyrogenic rock is good, feature is obvious, be easy to identification, therefore, in practical operation, preferably, obvious at fracture both sides matching relationship and middle-shallow layer feature by the zone of interest petrofacies of Volcanic Mechanism, the pyrogenic rock that is easy to identify is at the corresponding relation of fracture both sides, calculate the stratum that obtains deep layer pyrogenic rock mechanism walk actual relative movement from,
Advantage lithology distributions information and thickness data generation unit 6 be used for to be analyzed the log response data of pyrogenic rock, according to the stratum walk actual relative movement from, generate advantage lithology distributions information and the thickness data of deep layer pyrogenic rock mechanism by the GR seismic inversion.Because favourable igneous rocks (as trachyte) is very approaching with the pyrogenic rock wave impedance of same lithology series, can't utilize wave impedance to analyze Favorable Reservoir, after the log response of analyzing pyrogenic rock, adopt signature logging curve (as GR) seismic inversion, generate distributed intelligence and the thickness data of Favorable Reservoir in pyrogenic rock.
The growth position generation unit 7 in igneous reservoirs crack is used for utilizing seismic attributes analysis, along inclination layer scanning, the poor inverting of deep and shallow resistivity and be concerned with along layer and generate the growth position in igneous reservoirs crack in advantage lithology distributions information;
Hydrocarbon storage information generating unit 8 is used for growing position generation pyrogenic rock hydrocarbon storage information by cluster analysis of seismic attributes with based on the oil and gas detection of two-phase media.By after fluid-filled, the multiple sensitive earthquake attribute of reservoir will produce extremely at Reservoir Fracture; The seismic response of " low-frequency resonance, high frequency attenuation " will appear in the oily Reservoir Body.For this kind phenomenon, by with cluster analysis of seismic attributes and the method that combines based on the oil and gas detection of bi-directional medium, thereby generate pyrogenic rock hydrocarbon storage information comparatively accurately.
Fig. 8 is the structural drawing according to the advantage lithofacies distribution scope determining unit 4 of the embodiment of the present invention, and as shown in Figure 8, advantage lithofacies distribution scope determining unit 4 comprises:
Reflective-mode is set up module 41, is used for described geophysics reflectance signature data, is combined the reflective-mode of setting up pyrogenic rock with drilling data;
Advantage lithofacies distribution scope determination module 42 is used for determining advantage lithofacies distribution scope according to described reflective-mode.
Fig. 9 is another structural drawing according to the pyrogenic rock oil-gas exploration device 1 of the embodiment of the present invention, and as shown in Figure 9, the pyrogenic rock oil-gas exploration device 1 of the embodiment of the present invention also comprises:
Palaeogeomorphology characteristic information generation unit 9, be used for actual relative movement is walked from, advantage lithology distributions information and thickness data combination in position, described crater and pyrogenic rock petrofacies information, the distribution range of advantage petrofacies, stratum, generate the palaeogeomorphology characteristic information that pyrogenic rock forms period.Due to aforementioned all parts be all from respectively independently angle generate the formation form that related data information reflects igneous reservoirs, therefore, utilize palaeogeomorphology characteristic information generation unit 9 to adopt visualization technique, portray trachytic spatial form, and by the flattening technology, the palaeogeomorphology feature that pyrogenic rock forms period is summarized, from macroscopic perspective, understand more intuitively the spread form of whole igneous reservoirs.Palaeogeomorphology characteristic information generation unit 9 is connected between the growth position acquiring unit 7 in advantage lithology distributions information and thickness data generation unit 6 and igneous reservoirs crack.
Wherein, above-mentioned walk actual relative movement from be the plane of igneous rock formation under the dextrorotation effect of stress walk actual relative movement from; The Effective Reservoirs thickness profile data of above-mentioned thickness data is in the distribution range of described advantage petrofacies.
In practical operation, the pyrogenic rock oil-gas exploration device that the embodiment of the present invention two provides is the described pyrogenic rock Petroleum Exploration Methods of Application Example one preferably, and igneous reservoirs is analyzed.
In sum, the pyrogenic rock oil-gas exploration device that provides by the embodiment of the present invention, form mechanism, reservoir quality, geophysics response characteristic according to the rock mass of pyrogenic rock, targetedly pyrogenic rock hydrocarbon-bearing pool reservoir is analyzed exploration, thereby improve precision and probing success ratio to the prediction of pyrogenic rock hydrocarbon-bearing pool reservoirs exploration.
One of ordinary skill in the art will appreciate that all or part of step that realizes in above-described embodiment method can come the relevant hardware of instruction complete by program, this program can be stored in a computer read/write memory medium, such as ROM/RAM, magnetic disc, CD etc.
Above-described specific embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above is only specific embodiments of the invention; the protection domain that is not intended to limit the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a pyrogenic rock Petroleum Exploration Methods, is characterized in that, described pyrogenic rock Petroleum Exploration Methods comprises:
Position and characteristic information generation position, crater and pyrogenic rock petrofacies information according to the igneous reservoirs place;
By the described pyrogenic rock petrofacies information in position, described crater is carried out seismic facies analysis, generate the geophysics reflectance signature data of pyrogenic rock;
Determine the distribution range of advantage petrofacies according to described geophysics reflectance signature data;
In the distribution range of described advantage petrofacies, will section coherence time, seismic section and seismic experiment models coupling, according to the zone of interest petrofacies of Volcanic Mechanism at the pyrogenic rock of fracture both sides matching relationship and the middle-shallow layer corresponding relation in the fracture both sides, the stratum of calculating deep layer pyrogenic rock mechanism walk actual relative movement from;
Analyze the log response data of pyrogenic rock, in conjunction with described stratum walk actual relative movement from, generate advantage lithology distributions information and the thickness data of described deep layer pyrogenic rock mechanism by the GR seismic inversion;
Utilize seismic attributes analysis, be concerned with along inclination layer scanning, the poor inverting of deep and shallow resistivity and edge layer and obtain the growth position in igneous reservoirs crack in described advantage lithology distributions information;
Generate pyrogenic rock hydrocarbon storage information by cluster analysis of seismic attributes with based on the oil and gas detection of two-phase media in described growth position.
2. pyrogenic rock Petroleum Exploration Methods according to claim 1, is characterized in that, determines the distribution range of advantage petrofacies according to described geophysics reflectance signature data, comprising:
Described geophysics reflectance signature data are combined the reflective-mode of setting up pyrogenic rock with drilling data;
Determine the distribution range of advantage petrofacies according to described reflective-mode.
3. pyrogenic rock Petroleum Exploration Methods according to claim 2, is characterized in that, after the advantage lithology distributions information and thickness data of the described deep layer pyrogenic rock of generation mechanism, described pyrogenic rock Petroleum Exploration Methods also comprises:
Actual relative movement is walked from, advantage lithology distributions information and thickness data combination in position, described crater and pyrogenic rock petrofacies information, the distribution range of advantage petrofacies, stratum, generate the palaeogeomorphology characteristic information that pyrogenic rock forms period.
4. pyrogenic rock Petroleum Exploration Methods according to claim 3, is characterized in that, position and the characteristic information at described igneous reservoirs place comprise: the size structure of archeo magnetism, pyrogenic rock thickness and volcano dust.
5. pyrogenic rock Petroleum Exploration Methods according to claim 4, is characterized in that, described geophysics reflectance signature data comprise: pyrogenic rock is at frequency, phase place, amplitude vertical, laterally spread.
6. a pyrogenic rock oil-gas exploration device, is characterized in that, described pyrogenic rock oil-gas exploration device comprises:
Igneous rock facies and position generation unit are used for position and characteristic information generation position, crater and pyrogenic rock petrofacies information according to the igneous reservoirs place;
Geophysics reflectance signature data generating unit is used for generating the geophysics reflectance signature data of pyrogenic rock by the described pyrogenic rock petrofacies information in position, described crater is carried out seismic facies analysis;
Advantage lithofacies distribution scope determining unit is for determine the distribution range of advantage petrofacies according to described geophysics reflectance signature data;
Walk actual relative movement from computing unit, be used in the distribution range of described advantage petrofacies, will section coherence time, seismic section and seismic experiment models coupling, according to the zone of interest petrofacies of Volcanic Mechanism at the pyrogenic rock of fracture both sides matching relationship and the middle-shallow layer corresponding relation in the fracture both sides, the stratum of calculating deep layer pyrogenic rock mechanism walk actual relative movement from;
Advantage lithology distributions information and thickness data generation unit be used for to be analyzed the log response data of pyrogenic rock, in conjunction with described stratum walk actual relative movement from, generate advantage lithology distributions information and the thickness data of described deep layer pyrogenic rock mechanism by the GR seismic inversion;
The growth position generation unit in igneous reservoirs crack is used for utilizing seismic attributes analysis, along inclination layer scanning, the poor inverting of deep and shallow resistivity and be concerned with along layer and generate the growth position in igneous reservoirs crack in described advantage lithology distributions information;
The hydrocarbon storage information generating unit is used for generating pyrogenic rock hydrocarbon storage information by cluster analysis of seismic attributes with based on the oil and gas detection of two-phase media at described growth position.
7. pyrogenic rock oil-gas exploration device according to claim 6, is characterized in that, described advantage lithofacies distribution scope determining unit comprises:
Reflective-mode is set up module, is used for described geophysics reflectance signature data, is combined the reflective-mode of setting up pyrogenic rock with drilling data;
Advantage lithofacies distribution scope determination module is for determine the distribution range of advantage petrofacies according to described reflective-mode.
8. pyrogenic rock oil-gas exploration device according to claim 7, is characterized in that, described pyrogenic rock oil-gas exploration device also comprises:
Palaeogeomorphology characteristic information generation unit, be used for actual relative movement is walked from, advantage lithology distributions information and thickness data combination in position, described crater and pyrogenic rock petrofacies information, the distribution range of advantage petrofacies, stratum, generate the palaeogeomorphology characteristic information that pyrogenic rock forms period.
9. pyrogenic rock oil-gas exploration device according to claim 8, is characterized in that, position and the characteristic information at described igneous reservoirs place comprise: the size structure of archeo magnetism, pyrogenic rock thickness and volcano dust.
10. pyrogenic rock oil-gas exploration device according to claim 9, is characterized in that, described geophysics reflectance signature data comprise: pyrogenic rock is at frequency, phase place, amplitude vertical, laterally spread.
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