CN109343114A - The fault interpretation method of the flattening of Complex Lithofacies volcanic rock - Google Patents
The fault interpretation method of the flattening of Complex Lithofacies volcanic rock Download PDFInfo
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- CN109343114A CN109343114A CN201811335340.4A CN201811335340A CN109343114A CN 109343114 A CN109343114 A CN 109343114A CN 201811335340 A CN201811335340 A CN 201811335340A CN 109343114 A CN109343114 A CN 109343114A
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- 239000011435 rock Substances 0.000 title claims abstract description 88
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000004458 analytical method Methods 0.000 claims abstract description 17
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 10
- 208000035126 Facies Diseases 0.000 claims abstract description 9
- 239000002131 composite material Substances 0.000 claims abstract description 9
- CCEKAJIANROZEO-UHFFFAOYSA-N sulfluramid Chemical group CCNS(=O)(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F CCEKAJIANROZEO-UHFFFAOYSA-N 0.000 claims abstract description 7
- 230000009897 systematic effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000003325 tomography Methods 0.000 abstract description 6
- 238000011156 evaluation Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- LLJRXVHJOJRCSM-UHFFFAOYSA-N 3-pyridin-4-yl-1H-indole Chemical compound C=1NC2=CC=CC=C2C=1C1=CC=NC=C1 LLJRXVHJOJRCSM-UHFFFAOYSA-N 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/28—Processing seismic data, e.g. for interpretation or for event detection
- G01V1/30—Analysis
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Abstract
The invention discloses a kind of fault interpretation methods of the flattening of Complex Lithofacies volcanic rock, comprising the following steps: Normalizationof Logging Data processing carries out composite seismogram calibration；Select the reference lamina of volcanic rock upper formation；The geological analysis of Volcanic Lithofacies；Establish the seismic reflection mode of volcanic rock eruptive facies, volcano overflow facies, volcano intrusion phase and the equal different lithofacies of volcanic deposit；Flattening is carried out to reference lamina, the seismic data cube after having obtained reference lamina flattening；The fault interpretation and volcanic rock primary layer position for carrying out volcanic rock are explained, breaking property, tomography element of volcanic rock etc. are analyzed；Fault interpretation reasonableness test specifies the matching relationship of geologic horizon explanation and fault interpretation.The precision of fault interpretation is improved applied to western part of China and the fault interpretation of the complicated volcanic rock of east using the fault interpretation method of the flattening of Complex Lithofacies volcanic rock, Volcanic Reservoir is evaluated and is played a positive role with exploration.
Description
Technical field
The present invention relates to seismic data interpretation technical fields, and in particular to a kind of flattening of Complex Lithofacies volcanic rock
Fault interpretation method.
Background technique
Complicated Volcanic Lithofacies show as volcanic eruption phase, volcano overflow facies, volcano intrusion mutually and volcanic deposit is equal
A variety of lithofacies, these lithofacies in be interweaved, feature stacked on top of each other.Since more phase tectonic movements easily cause different geology
The tomography two sides volcanic rock in period docks, and more phase Volcanic Lithofacies are also interweaved together, are difficult to identify on seismic profile
The fracture characteristic of volcanic rock out is usually used common version technology for volcanic rock fault interpretation at present, mainly passes through ground
The mode of shake reflectance signature or seismic facies carrys out detection of run-out and explains fracture, and it is lower to often result in volcanic rock fault interpretation precision, right
Volcanic rock evaluation of trap and Volcanic Reservoir evaluation etc. produce large effect.
In conclusion the present invention devises a kind of fault interpretation method of the flattening of Complex Lithofacies volcanic rock.
Summary of the invention
In view of the shortcomings of the prior art, object of the present invention is to be to provide a kind of layer drawing of Complex Lithofacies volcanic rock
The fault interpretation precision of complicated Volcanic Lithofacies can be improved in flat fault interpretation method, improves volcanic rock evaluation of trap and oil
Hide the precision of description.
To achieve the goals above, the present invention is to realize by the following technical solutions: the layer of Complex Lithofacies volcanic rock
The fault interpretation method evened up, comprising the following steps:
1, well-log information is standardized, production composite traces is demarcated；
2, the reference lamina of volcanic rock upper formation is selected；
3, the geological analysis of complicated Volcanic Lithofacies；
4, volcanic rock Seismic reflection character and volcanic rock seismic facies pattern；
5, flattening is carried out to the reference lamina of volcanic rock upper formation, obtains the data volume after flattening；
6, volcanic rock fault interpretation, the judgement of volcanic rock breaking property are carried out using the data volume after flattening, volcanic rock breaks
The analysis of turn-off, tendency and the trend split, the explanation of volcanic rock main purpose layer；
7, analyze geologic horizon seismic interpretation and fault interpretation matching relationship, using individual well bore meet depth, Volcanic Lithofacies with
And oil-gas pool distribution etc. examines the correctness of fault interpretation.
Preferably, being standardized in the step 1 to well-log information, systematic error is eliminated；Utilize standard
The well-log information for changing processing makes composite traces.
Preferably, selecting the reference lamina of volcanic rock upper formation in the step 2, the basis for selecting of reference lamina is ground
Layer lithology cross direction profiles are more stable, and seismic reflection is strong amplitude, continuity is good, and seismic reflection amplitude is generally higher than 90.
Preferably, in the step 3 carry out volcanic rock lithofacies analysis, using the lithology of volcanic rock, electrically and
Thin section analysis etc. determines that volcanic eruption phase, volcano overflow facies, volcanic vent phase and the volcanic deposit of volcanic rock are equal, and builds
The Geological Mode of vertical Volcanic Lithofacies.
Preferably, in the step 4 on the basis of composite seismogram calibration, analysis volcanic rock seismic reflection amplitude,
The features such as frequency, phase, and establish the seismic reflection mode of volcanic rock difference lithofacies.
Preferably, flattening is carried out using reference lamina in the step 5, the seismic data after obtaining flattening.
Preferably, the step 6 carries out volcanic rock fault interpretation with the data volume after flattening, volcanic rock is disconnected
The judgement of fragility matter, the analysis of the turn-off, tendency and trend of volcanic rock fracture, the explanation of volcanic rock main purpose layer.
Preferably, the matching relationship of analysis the geologic horizon seismic interpretation and fault interpretation of the step 7, utilizes list
Well, which bores, meets the correctness that depth, Volcanic Lithofacies and oil-gas pool distribution etc. examine fault interpretation.
The invention has the following advantages:
In the present invention, by the fault interpretation method of the flattening of Complex Lithofacies volcanic rock, it is applied to western part of China and east
Complicated volcanic rock fault interpretation, compared with conventional volcanic rock interpretation technique, the volcanic rock tomography of our method interpretation it is disconnected
30-40% is improved away from the description such as, volcanic rock trap, Volcanic Reservoir correctness, product is played with exploration to Volcanic Reservoir evaluation
The effect of pole.
Detailed description of the invention
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments；
Fig. 1 is flow chart of the method for the present invention.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to
Specific embodiment, the present invention is further explained.
Referring to Fig.1, present embodiment uses following technical scheme: a kind of flattening of Complex Lithofacies volcanic rock breaks
Split means of interpretation, comprising the following steps:
Step 101, well-log information is standardized, eliminates systematic error；Utilize the well-log information system of standardization
Make composite traces.Process enters step 102.
Step 102, the reference lamina of volcanic rock upper formation is selected, the basis for selecting of reference lamina is formation lithology cross direction profiles ratio
More stable, seismic reflection is strong amplitude, continuity is good, and seismic reflection amplitude is generally higher than 90.Process enters step 103.
Step 103, the lithofacies analysis for carrying out volcanic rock is determined using the lithology, electrical property and thin section analysis etc. of volcanic rock
The volcanic eruption phase of volcanic rock, volcano overflow facies, volcanic vent phase and volcanic deposit are equal, and establish the ground of Volcanic Lithofacies
Matter mode.Process enters step 104.
Step 104, on the basis of composite seismogram calibration, the spies such as analysis volcanic rock seismic reflection amplitude, frequency, phase
Sign, and establish the seismic reflection mode of volcanic rock difference lithofacies.Process enters step 105.
Step 105, flattening is carried out using reference lamina, the seismic data after obtaining flattening.Process enters step
106。
Step 106, volcanic rock fault interpretation, main several sides by step 106-1, step 106-2 and 106-3
Method:
Step 106-1 determines the breaking property of volcanic rock, is clearly normal fault or reversed fault, and tomography of different nature represents
The contact relation of different tectonic stress effect and different lithofacies volcanic rock.Process enters step 107.
Step 106-2 determines that the tendency of volcanic rock tomography, turn-off size portray the planar distribution direction of volcanic rock.To fire
The element of mountain rock tomography is analyzed.Process enters step 107.
Step 106-3, while explaining volcanic rock main purpose layer, the geologic horizon of explanation is put into fault interpretation system
In.Process enters step 107.
Step 107, the matching relationship for analyzing geologic horizon seismic interpretation and fault interpretation is bored using individual well and meets depth, fire
The correctness of the inspection fault interpretation such as mountain rock lithofacies and oil-gas pool distribution.
In present embodiment, according to the fault interpretation method of the flattening of Complex Lithofacies volcanic rock, it is applied to China
The fault interpretation of western and east complicated volcanic rock, improves the precision of the descriptions such as volcanic rock trap, Volcanic Reservoir, to fire
Mountain rock reservoir evaluation plays a positive role with exploration.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (8)
1. the fault interpretation method of the flattening of Complex Lithofacies volcanic rock, which comprises the following steps:
(1), well-log information is standardized, production composite traces is demarcated；
(2), the reference lamina of volcanic rock upper formation is selected；
(3), the geological analysis of complicated Volcanic Lithofacies；
(4), volcanic rock Seismic reflection character and volcanic rock seismic facies pattern；
(5), flattening is carried out to the reference lamina of volcanic rock upper formation, obtains the data volume after flattening；
(6), volcanic rock fault interpretation, the judgement of volcanic rock breaking property, volcanic rock are carried out using the data volume after flattening
The analysis of the turn-off, tendency and trend of fracture, the explanation of volcanic rock main purpose layer；
(7), the matching relationship for analyzing geologic horizon seismic interpretation and fault interpretation is bored using individual well and meets depth, Volcanic Lithofacies
And oil-gas pool distribution etc. examines the correctness of fault interpretation.
2. the fault interpretation method of the flattening of Complex Lithofacies volcanic rock according to claim 1, which is characterized in that described
The step of (1) in well-log information is standardized, eliminate systematic error；It is made using the well-log information of standardization
Composite traces.
3. the fault interpretation method of the flattening of Complex Lithofacies volcanic rock according to claim 1, which is characterized in that described
The step of (2) in selection volcanic rock upper formation reference lamina, the basis for selecting of reference lamina is that formation lithology cross direction profiles compare
Stablize, seismic reflection is strong amplitude, continuity is good, and seismic reflection amplitude is greater than 90.
4. the fault interpretation method of the flattening of Complex Lithofacies volcanic rock according to claim 1, which is characterized in that described
The step of (3) in carry out volcanic rock lithofacies analysis determine volcanic rock using the lithology, electrical property and thin section analysis of volcanic rock
Volcanic eruption phase, volcano overflow facies, volcanic vent phase and volcanic deposit phase, and establish the Geological Mode of Volcanic Lithofacies.
5. the fault interpretation method of the flattening of Complex Lithofacies volcanic rock according to claim 1, which is characterized in that described
The step of (4) on the basis of composite seismogram calibration, analyze volcanic rock seismic reflection amplitude, frequency, phase property, and establish
The seismic reflection mode of volcanic rock difference lithofacies.
6. the fault interpretation method of the flattening of Complex Lithofacies volcanic rock according to claim 1, which is characterized in that described
The step of (5) in using reference lamina progress flattening, seismic data after obtaining flattening.
7. the fault interpretation method of the flattening of Complex Lithofacies volcanic rock according to claim 1, which is characterized in that described
The step of (6) with the data volume after flattening carry out volcanic rock fault interpretation, the judgement of volcanic rock breaking property, volcanic rock
The analysis of the turn-off, tendency and trend of fracture, the explanation of volcanic rock main purpose layer.
8. the fault interpretation method of the flattening of Complex Lithofacies volcanic rock according to claim 1, which is characterized in that described
The step of (7) analysis geologic horizon seismic interpretation and fault interpretation matching relationship, utilize individual well bore meet depth, Volcanic Rocks
Phase and oil-gas pool distribution etc. examine the correctness of fault interpretation.
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| CN111077590A (en) * | 2019-12-06 | 2020-04-28 | 成都理工大学 | Method for analyzing development characteristics and distribution rules of two-fold system-Ordovician volcanic rock in Shunto-Mill region |
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Application publication date: 20190215 |