CN106547022A - The method that chronological change mutually recognizes alluvial fan microfacies - Google Patents
The method that chronological change mutually recognizes alluvial fan microfacies Download PDFInfo
- Publication number
- CN106547022A CN106547022A CN201510801863.3A CN201510801863A CN106547022A CN 106547022 A CN106547022 A CN 106547022A CN 201510801863 A CN201510801863 A CN 201510801863A CN 106547022 A CN106547022 A CN 106547022A
- Authority
- CN
- China
- Prior art keywords
- chronological change
- microfacies
- sequence
- alluvial fan
- fan
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The invention discloses a kind of method that chronological change mutually recognizes alluvial fan microfacies, comprises the following steps：Set up seismic sequence stratigraphy screen work；The inclination angle and azimuth of each sampling point in seismic data are calculated by inclination angle guide way；Following the trail of chronological change, the chronological change is one group of simultaneously layer position of automatic tracing, is arranged according to stratigraphic sequence, and be respectively which specifies relative Geologic Time, the chronostratic parameter of tracking to include：Starting point is stratum thickness, and minimum spacing is 1 sampled point, and maximum spacing is 4 sampled points；Chronological change line internal structure and formalness in degree of crook, development length, sequence according to chronological change line, set up the explanation template of chronological change phase and alluvial fan microfacies；Chronological change is carried out in the whole district and mutually explains and be converted to alluvial fan flat distribution map, the alluvial fan flat distribution map is used for reservoir properties and studies and oil-bearing prediction.The method can improve alluvial fan microfacies identification accuracy, and can increase substantially drilling success.
Description
Technical field
The invention belongs to alluvial fan microfacies technology of identification field, knows each other more particularly to a kind of chronological change
The method of other alluvial fan microfacies.
Background technology
Alluvial fan microfacies recognition principle is the reflection spy formed on seismic data based on alluvial fan microfacies
Levy.As structural oil pool is fewer and feweri, the requirement to lithological reservoir exploration technology becomes increasingly conspicuous, with
Past inverting, seismic properties (seismic amplitude, the frequency, energy etc.) method of passing through is to alluvial fan fan body
Identification and sedimentary facies division, drilling success is only 60-70%, therefore the also drilling well of 30-40%
Success rate has much room for improvement.Pigtail streamline in being only distributed in the major trough of fan root, fanned due to High Efficiency Well is i.e. in fan
In the main channel facies tract of body, the pigtail stream beach fanned in root groove beach and fan is poorly efficient block, is fine and close between fan
Sand-body distribution area, laterally can block, and fan end is High water cut block, in order to recognize the main water of alluvial fan
Road, in the urgent need to new alluvial fan microfacies technology of identification, further to improve probing success rate.And work as
Front little for alluvial fan fan body both at home and abroad, lithology cross directional variations are big, and reservoir heterogeneity is strong, but main water
In road, the high oil reservoir of yield also lacks effective means.
The content of the invention
For above-mentioned technical problem, the present invention is intended to provide a kind of chronological change mutually recognizes alluvial fan microfacies
Method, alluvial fan microfacies identification accuracy can be improved, and drilling well success can be increased substantially
Rate.
To reach above-mentioned purpose, the technical scheme is that：
A kind of method that chronological change mutually recognizes alluvial fan microfacies, it is characterised in that comprise the following steps：
S01：Set up seismic sequence stratigraphy screen work；
S02：The inclination angle and azimuth of each sampling point in seismic data are calculated by inclination angle guide way；
S03：Chronological change is followed the trail of, the chronological change is one group while the layer position of automatic tracing, presses
Arrange according to stratigraphic sequence, and be respectively which and specify relative Geologic Time, follow the trail of chronostratic parameter bag
Include：Starting point is stratum thickness, and minimum spacing is 1 sampled point, and maximum spacing is 4 sampled points；
S04：In degree of crook, development length, sequence according to chronological change line in chronological change line
Portion's structure and formalness, set up the explanation template of chronological change phase and alluvial fan microfacies；
S05：Chronological change is carried out in the whole district and mutually explains and be converted to alluvial fan flat distribution map, it is described
Alluvial fan flat distribution map is used for reservoir properties and studies and oil-bearing prediction.
Preferably, sequence Stratigraphic framework described in step S01 be isochronous stratigraphic framework, counterweight
Point group section carries out high accuracy sequence contrast screen work, is combined by well-shake and sets up third-band sequence and system tract pair
Than screen work, what key area was set up in system tract is basic stratigraphic unit with four, Pyatyi high frequency sequence
The high-resolution sequence framework of Reservoir Scale..
Preferably, the inclination angle of each sampling point of calculating seismic data and azimuthal meter in step S02
Calculate step-length 111 (1 line, 1 road, 1 sampled point), filtering step-length 112 (1 line, 1 road, 2
Sampled point).
Preferably, step S03 is under the control of sequence top bottom interface, automatic tracing chronological change,
Precision of the precision of tracing of horizons higher than earthquake sampled point, is followed the trail of result and is preserved with layer position body form.
Preferably, the degree of crook of generation ground layer line includes straight, wavy, bending.
Preferably, the development length of the chronological change line is divided into and extends in long, extension, extends short.
Preferably, in the sequence, chronological change line internal structure is divided into and parallel is tied with sub- reflected in parallel
Structure, spread reflection structure, progradational reflection configuration and mixed and disorderly shape catoptric arrangement.
Preferably, in the sequence, chronological change line external structure is divided into seat shape, wedge shape and beach shape.
Preferably, step S04 is according to the degree of crook of chronological change line, development length, sequence
The syntagmatic of 4 kinds of features of interior chronological change line internal structure and formalness comes induction and conclusion age ground
The type of layer phase.
Compared with prior art, the invention has the beneficial effects as follows：
In the present invention, according to alluvial fan distribution and the combination of residing structural feature, reservoir and cap rock etc.
Synthetic geology research, preferred exploration and development Favorable Zones；Determine main channel plane distributing scope in fan body,
Reasonable dismissal is made to the oiliness of each microfacies zone, drilling success is improved, success rate is by original
60-70% bring up to 90%.Chronological change in the present invention mutually recognizes the method tool of alluvial fan microfacies
Have wide practical use, and drilling success can be increased substantially.
Description of the drawings
Fig. 1 is the flow chart of the method that chronological change of the present invention mutually recognizes alluvial fan microfacies.
Specific embodiment
To make the object, technical solutions and advantages of the present invention of greater clarity, with reference to concrete reality
Mode and accompanying drawing are applied, the present invention is described in more detail.It should be understood that these descriptions are simply shown
Example property, and it is not intended to limit the scope of the present invention.Additionally, in the following description, eliminate to public affairs
Know the description of structure and technology, to avoid unnecessarily obscuring idea of the invention.
Embodiment：
Fig. 1 be the present invention chronological change mutually recognize alluvial fan microfacies method flow chart, such as Fig. 1
It is shown.
In step 101, earthquake layer isochronous stratigraphic framework is set up, high accuracy layer is set up to emphasis group section
Ordered pair is combined by well-shake and sets up third-band sequence and system tract contrast screen work than screen work, and key area is built
In vertical system tract with four, the high accuracy layer of the Reservoir Scale that Pyatyi high frequency sequence is basic stratigraphic unit
Sequence screen work.The purpose of the step is to eliminate the factor unrelated with target zone to chronostratic impact, is made
Chronological change phase character substantially, reflects the deposition characteristicses of alluvial fan.Flow process enters into step 102.
In step 102, inclination angle guide way is calculated, calculates the inclination angle and azimuth of seismic data each sampling point,
Material calculation 111, filters step-length 112, it is ensured that chronological change line reflects the change of seismic event.
Inclination angle is stratigraphic dip, the numerical value at inclination angle always positive number, and unit is usec/m.The azimuth number of tendency
Value scope is -180 ° to+180 °.Square parallactic angle refers to the extension direction along main profile, cross-track
Number it is increase.Flow process enters into step 103.
In step 103, under the control of sequence top bottom interface, automatic tracing chronological change, tracing of horizons
Precision higher than the precision of earthquake sampled point, follow the trail of result and preserved with layer position body form.The age ground
Layer is one group while the layer position of automatic tracing, according to stratigraphic sequence arrangement, and it is specified relative to be respectively which
Geologic Time, following the trail of chronostratic parameter includes：Starting point is stratum thickness, and minimum spacing is 1
Individual sampled point, maximum spacing are 4 sampled points, make chronological change line-spacing reasonable.
Several features in by step 104-1, step 104-2, step 103-3 and step 104-4
Syntagmatic carrys out the type of induction and conclusion chronological change phase.
In step 104-1, mainly according to chronostratic degree of crook, chronostratigraphic division for it is straight,
Wavy, bending.The anisotropism of chronological change degree of crook and stratum itself is relevant, reflects difference
The cross directional variations on stratum under sedimentary condition, the fast high energy ring of chronological change bending reflection stratum cross directional variations
Border.
In step 104-2, in being divided into extension length, extend according to the development length of chronological change line, prolong
Stretch short, the continuity of chronological change development length and stratum itself is relevant, reflects different sedimentary conditions
The change of the continuity degree and sedimentary condition on lower stratum, continuity reflect well stable low energy environment.
Chronological change internal structure is divided in step 104-3, sequence, parallel to tie with sub- reflected in parallel
Structure, reflection at the uniform velocity deposition, with respect to low energy environment, often come across fan end；Spread reflection structure,
Tend to occur in wedge shaped element, the ancient landform gradient is steeper when it reflects deposition, often fan one band of root；
Progradational reflection configuration, orients what progradation was produced by deposit, and every chronological change represents certain period
Isochronic plane and indicate before product unit paleocurrent direction；Mixed and disorderly shape catoptric arrangement, is that one kind is not advised
Then, discontinuous reflection.It can be the deposition of unstable environment, such as between two fan bodies.
Chronological change formalness can be divided in step 104-4, sequence, seat shape, reflector element
Bound is parallel or near parallel, and thickness is relatively stable, is generally present in uniform, stably depositing environment.
Wedge shape is mainly characterized by tendency its thickness to one side progressive additive, it is thinning round about after
Suddenly terminate, represent a kind of quick, nonuniform deposition effect.Beach shape is the mutation of wedge shape, top horizontal
Smooth, the upper interface of one lateral reflection of edge has a down dip slightly.
In step 105, according to chronological change degree of crook, chronostratic development length, then synthetic layer
Chronological change internal structure and formalness in sequence, set up the explanation of chronological change phase and alluvial fan microfacies
Template.
Fan root major trough is foreset channel-shaped in wavy extension, and fan root groove beach is the long diverging wedge shape of wavy extension,
In fan, pigtail streamline extends long S types foreset channel-shaped for bending, and in fan, pigtail stream beach extends length for straight parallel
Beach shape, short mixed and disorderly to extend between fan, fan end extends long seat shape for straight parallel, it is established that chronological change
Template is explained mutually.Flow process enters into step 106.
In step 106, chronological change is carried out to the whole district and is mutually explained, make the equal mapping of chronological change,
Template is mutually explained according to chronological change, whole district's alluvial fan flat distribution map is made.Alluvial fan plane distribution
Figure can be used for reservoir properties research and oil-bearing prediction.
In the present invention, according to alluvial fan distribution characteristics and residing structural feature, reservoir and cap rock group
The synthetic geology research such as conjunction, preferred exploration and development Favorable Zones improve drilling success.
It should be appreciated that the above-mentioned specific embodiment of the present invention is used only for exemplary illustration or solution
The principle of the present invention is released, and is not construed as limiting the invention.Therefore, in the essence without departing from the present invention
Any modification, equivalent substitution and improvements done in the case of god and scope etc., should be included in this
Within bright protection domain.Additionally, claims of the present invention be intended to fall into appended right will
The whole in the equivalents on scope and border or this scope and border is asked to change and modifications example.
Claims (9)
1. a kind of method that chronological change mutually recognizes alluvial fan microfacies, it is characterised in that comprise the following steps：
S01：Set up seismic sequence stratigraphy screen work；
S02：The inclination angle and azimuth of each sampling point in seismic data are calculated by inclination angle guide way；
S03：Following the trail of chronological change, the chronological change is one group of simultaneously layer position of automatic tracing, is arranged according to stratigraphic sequence, and be respectively which specifies relative Geologic Time, the chronostratic parameter of tracking to include：Starting point is stratum thickness, and minimum spacing is 1 sampled point, and maximum spacing is 4 sampled points；
S04：Chronological change line internal structure and formalness in degree of crook, development length, sequence according to chronological change line, set up the explanation template of chronological change phase and alluvial fan microfacies；
S05：Chronological change is carried out in the whole district and mutually explains and be converted to alluvial fan flat distribution map, the alluvial fan flat distribution map is used for reservoir properties and studies and oil-bearing prediction.
2. the method that chronological change according to claim 1 mutually recognizes alluvial fan microfacies, it is characterized in that, sequence Stratigraphic framework described in step S01 is isochronous stratigraphic framework, high accuracy sequence contrast screen work is set up to emphasis group section, combined by well-shake and set up third-band sequence and system tract contrasts screen work, key area set up in system tract with the four, high-resolution sequence framework of the Reservoir Scale that Pyatyi high frequency sequence is basic stratigraphic unit.
3. the method that chronological change according to claim 1 mutually recognizes alluvial fan microfacies, it is characterized in that, in step S02, the inclination angle of each sampling point of calculating seismic data and azimuthal material calculation are 111 (1 line, 1 road, 1 sampled point), filter step-length 112 (1 line, 1 road, 2 sampled points).
4. the method that chronological change according to claim 1 mutually recognizes alluvial fan microfacies, characterized in that, step S03 is under the control of sequence top bottom interface, automatic tracing chronological change, precision of the precision of tracing of horizons higher than earthquake sampled point, is followed the trail of result and is preserved with layer position body form.
5. the method that chronological change according to claim 1 mutually recognizes alluvial fan microfacies, it is characterised in that the degree of crook of generation ground layer line includes straight, wavy, bending.
6. the method that chronological change according to claim 1 mutually recognizes alluvial fan microfacies, it is characterised in that the development length of the chronological change line is divided into and extends in long, extension, extends short.
7. the method that chronological change according to claim 1 mutually recognizes alluvial fan microfacies, characterized in that, in the sequence chronological change line internal structure be divided into it is parallel with sub- reflected in parallel structure, spread reflection structure, progradational reflection configuration and mixed and disorderly shape catoptric arrangement.
8. the method that chronological change according to claim 1 mutually recognizes alluvial fan microfacies, it is characterised in that chronological change line external structure is divided into seat shape, wedge shape and beach shape in the sequence.
9. the method that chronological change according to claim 1 mutually recognizes alluvial fan microfacies, characterized in that, step S04 according to the syntagmatic of 4 kinds of features of chronological change line internal structure and formalness in the degree of crook of chronological change line, development length, sequence come the type of induction and conclusion chronological change phase.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510801863.3A CN106547022B (en) | 2015-11-20 | 2015-11-20 | The method that chronological change mutually identifies alluvial fan microfacies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510801863.3A CN106547022B (en) | 2015-11-20 | 2015-11-20 | The method that chronological change mutually identifies alluvial fan microfacies |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106547022A true CN106547022A (en) | 2017-03-29 |
| CN106547022B CN106547022B (en) | 2019-07-02 |
Family
ID=58364801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510801863.3A Active CN106547022B (en) | 2015-11-20 | 2015-11-20 | The method that chronological change mutually identifies alluvial fan microfacies |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106547022B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107870369A (en) * | 2016-09-26 | 2018-04-03 | 中国石油化工股份有限公司 | A kind of non-structural configuration trap identification method and system |
| CN110274859A (en) * | 2018-03-14 | 2019-09-24 | 中国石油化工股份有限公司 | Carbonate reservoir control methods |
| CN111856579A (en) * | 2020-07-31 | 2020-10-30 | 中国海洋石油集团有限公司 | Method for comprehensively identifying basin edge sediment sector in deep water area of oil-gas-containing basin in south China sea |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020099504A1 (en) * | 1999-01-29 | 2002-07-25 | Cross Timothy A. | Method of predicting three-dimensional stratigraphy using inverse optimization techniques |
| US20070260403A1 (en) * | 2006-03-29 | 2007-11-08 | Schlumberger Technology Corporation | Method of interpreting well data |
| CN103217714A (en) * | 2013-03-26 | 2013-07-24 | 中国石油大学(华东) | Seismic sedimentology interpretation method based on frequency-scale matching |
| CN104199124A (en) * | 2014-08-26 | 2014-12-10 | 中国石油天然气股份有限公司 | Mixed-phase stratigraphic analysis method and device |
-
2015
- 2015-11-20 CN CN201510801863.3A patent/CN106547022B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020099504A1 (en) * | 1999-01-29 | 2002-07-25 | Cross Timothy A. | Method of predicting three-dimensional stratigraphy using inverse optimization techniques |
| US20070260403A1 (en) * | 2006-03-29 | 2007-11-08 | Schlumberger Technology Corporation | Method of interpreting well data |
| CN103217714A (en) * | 2013-03-26 | 2013-07-24 | 中国石油大学(华东) | Seismic sedimentology interpretation method based on frequency-scale matching |
| CN104199124A (en) * | 2014-08-26 | 2014-12-10 | 中国石油天然气股份有限公司 | Mixed-phase stratigraphic analysis method and device |
Non-Patent Citations (2)
| Title |
|---|
| 杨春 等: "高分辨率年代地层技术在三角洲沉积砂体形态刻画中的应用", 《海洋石油》 * |
| 林正良 等: "地震沉积学研究现状及进展综述", 《地质科技情报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107870369A (en) * | 2016-09-26 | 2018-04-03 | 中国石油化工股份有限公司 | A kind of non-structural configuration trap identification method and system |
| CN110274859A (en) * | 2018-03-14 | 2019-09-24 | 中国石油化工股份有限公司 | Carbonate reservoir control methods |
| CN111856579A (en) * | 2020-07-31 | 2020-10-30 | 中国海洋石油集团有限公司 | Method for comprehensively identifying basin edge sediment sector in deep water area of oil-gas-containing basin in south China sea |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106547022B (en) | 2019-07-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105717542B (en) | The domain Wheeler based on 3-D seismics is sliced sand body engraving process | |
| CN103454686B (en) | Small scale sedimentary facies based on strata slicing carries out the method and system of reservoir prediction | |
| CN103454678B (en) | A kind of determination method and system of seismic slice tautochronism | |
| CN104698497B (en) | A kind of fine calibration of thin sand-mud interbed layer position | |
| CN102012521B (en) | Method for detecting pre-stack cracks in seismic reservoir prediction | |
| Zhu et al. | Seismic-based sediment provenance analysis in continental lacustrine rift basins: An example from the Bohai Bay Basin, China | |
| Zovoili et al. | Tectonic geomorphology of escarpments: The cases of kompotades and νεα anchialos faults | |
| CN109870719B (en) | Well position layout method, device and system for carbonate rock tight thin reservoir | |
| CN105388526A (en) | Ancient geological structure recovery method of continental basin | |
| CN105735978A (en) | Well spacing method for carbonate interlayer karst-type reservoir | |
| CN103149589A (en) | Igneous rock oil and gas exploration method and device | |
| CN103033846A (en) | Seismic inversion system and seismic inversion method controlled by geologic facies | |
| CN108121009B (en) | Development late stage complex fault block velocity-variant depth mapping method | |
| CN106547022A (en) | The method that chronological change mutually recognizes alluvial fan microfacies | |
| CN103529486A (en) | Geochemistry anomaly delineating method | |
| Khan et al. | A geophysical investigation of the active Hockley Fault System near Houston, Texas | |
| CN106597545A (en) | Seismic prestack inversion method and device for horizontal cracks | |
| Coyan et al. | Geometry and Quaternary slip behavior of the San Juan de los Planes and Saltito fault zones, Baja California Sur, Mexico: Characterization of rift-margin normal faults | |
| CN105116447A (en) | A geological river direction discrimination method based on curvature-abnormal stripes | |
| Rossland et al. | Permian–holocene tectonostratigraphic evolution of the mandal high, central graben, North Sea | |
| CN106324682A (en) | Surface structure investigation method applied to permafrost regions | |
| CN103399345A (en) | Survey method and device for buried-hill crevice distribution | |
| Cserkész-Nagy et al. | Reconstruction of a Pleistocene meandering river in East Hungary by VHR seismic images, and its climatic implications | |
| Jacob et al. | Some observations on diamondiferous bedrock gully trapsites on Late Cainozoic, marine-cut platforms of the Sperrgebiet, Namibia | |
| CN102914790B (en) | Observing system method for primary collection of two-dimensional observing system and three-dimensional observing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |