CN108267780A - With the method for sandstone percent content isogram constraint shallow-layer meandering stream channel boundary - Google Patents

With the method for sandstone percent content isogram constraint shallow-layer meandering stream channel boundary Download PDF

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Publication number
CN108267780A
CN108267780A CN201611270719.2A CN201611270719A CN108267780A CN 108267780 A CN108267780 A CN 108267780A CN 201611270719 A CN201611270719 A CN 201611270719A CN 108267780 A CN108267780 A CN 108267780A
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China
Prior art keywords
percent content
sandstone
river
isogram
shallow
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CN201611270719.2A
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Inventor
刘静
王永诗
刘惠民
马立驰
孙超
景安语
赵约翰
孙耀庭
姜瑞波
谢传金
张悦
许淑芳
熊伟
毕俊凤
杨贵丽
王亚琳
魏晓燕
徐昊清
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China Petroleum and Chemical Corp
Exploration and Development Research Institute of Sinopec Henan Oilfield Branch Co
Exploration and Development Research Institute of Sinopec Shengli Oilfield Co
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China Petroleum and Chemical Corp
Exploration and Development Research Institute of Sinopec Henan Oilfield Branch Co
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Priority to CN201611270719.2A priority Critical patent/CN108267780A/en
Publication of CN108267780A publication Critical patent/CN108267780A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/28Processing seismic data, e.g. for interpretation or for event detection
    • G01V1/30Analysis
    • G01V1/307Analysis for determining seismic attributes, e.g. amplitude, instantaneous phase or frequency, reflection strength or polarity

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  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

The present invention provides a kind of method with sandstone percent content isogram constraint shallow-layer meandering stream channel boundary, this is included with the method that sandstone percent content isogram constrains shallow-layer meandering stream channel boundary:Step 1, research area's Strata Comparison screen work is established;Step 2, the main force of research area sand group seismic horizon is explained;Step 3, extraction research area main force's sand group river attribute;Step 4, establishment research area main layer position Channel sandstone percentage composition isogram;Step 5, seismic properties river is folded into sandstone percent content figure, the boundary in river is portrayed using sandstone percent content figure.The method with sandstone percent content isogram constraint shallow-layer meandering stream channel boundary combines sandstone percent content isogram and seismic properties graph, i.e., quick and accurate portray channel boundary.

Description

With the method for sandstone percent content isogram constraint shallow-layer meandering stream channel boundary
Technical field
The present invention relates to oil exploration technology fields, especially relate to a kind of sandstone percent content isogram constraint The method of shallow-layer meandering stream channel boundary.
Background technology
With the raising of Songliao basin, the difficulty of exploration is increasing, and this requires the work of oil-gas exploration is more next It is finer.The oil-gas exploration of shallow-layer river channel sand becomes exploration emphasis in multiple areas.According to presently found shallow-layer channel sand From the point of view of oil pool analysis, to construct lithologic deposit as main Oil Reservoir Types.Shallow-layer river channel sand tectonic sliver is its source property Oil reservoir, oil gas pass through the upward transporting of tomography.The configuration relation of channel boundary and tomography controls the enrichment of river oil gas, therefore, It is also most important work that the fine boundary structure for accurately portraying river, which is the most basic of shallow-layer river channel sand oil-gas exploration,.Thus We have invented a kind of methods with sandstone percent content isogram constraint shallow-layer meandering stream channel boundary, solve more than skill Art problem.
Invention content
Sandstone percent content is used the object of the present invention is to provide a kind of boundary that can quickly and effectively depict river The method that isogram constrains shallow-layer meandering stream channel boundary.
The purpose of the present invention can be achieved by the following technical measures:It is bent with sandstone percent content isogram constraint shallow-layer The method of river channel boundary is flowed, this is included with the method that sandstone percent content isogram constrains shallow-layer meandering stream channel boundary: Step 1, research area's Strata Comparison screen work is established;Step 2, the main force of research area sand group seismic horizon is explained;Step 3, extraction research The main force of area sand group river attribute;Step 4, establishment research area main layer position Channel sandstone percentage composition isogram;Step 5, will Seismic properties river is folded into sandstone percent content figure, and the boundary in river is portrayed using sandstone percent content figure.
The purpose of the present invention can be also achieved by the following technical measures:
In step 1, sequence dividing is carried out to individual well using drilling well, well-log information identification sequence interface;It is divided in individual well On the basis of, sequence stratigraphic framework is established using lithology, electrical property feature and seismic data, clearly studies the floor of the main force of area sand group Position.
In step 2, full 3 D stereo explanation is carried out to the river floor position of the main force of research area sand group using 3D data volume.
In step 3, in seismic work station, according to the explanation results of seismic horizon, amplitude is chosen according to timing window is set The river attribute of generic attribute extraction main force sand group, makes river channel sand attributed graph.
In step 4, the thickness value on statistics major channal stratum and in its formation thickness river channel sand thickness value, take The radiometer of two value calculates the sandstone percent content value on the set stratum;According to attributes extraction obtain the spreading direction in river with And channel boundary substantially, the sandstone percent content isogram in river is sketched out using the sandstone percent content value of individual well.
In steps of 5, it is labeled in the form of block diagram, seismic properties river is folded into sandstone percent content figure In, the boundary in river is portrayed using sandstone percent content figure.
The method with sandstone percent content isogram constraint shallow-layer meandering stream channel boundary in the present invention, by sandstone hundred Point content isogram combines with seismic properties graph, i.e., it is quick and it is accurate portray channel boundary, should Method effectively solves the problems, such as channel boundary to be caused to portray inaccuracy since seismic data resolution is not high.
Description of the drawings
Fig. 1 is a tool of the method that shallow-layer meandering stream channel boundary is constrained with sandstone percent content isogram of the present invention The flow chart of body embodiment;
Fig. 2 is the schematic diagram of sequence Strata Comparison screen work sectional view in a specific embodiment of the invention;
Fig. 3 is the schematic diagram explained in the specific embodiment of the present invention by seismic profile layer position;
Fig. 4 is the schematic diagram of river attribute plan view in a specific embodiment of the invention;
Fig. 5 is the schematic diagram of sandstone percent content isogram in a specific embodiment of the invention;
Fig. 6 is the schematic diagram that channel boundary portrays plan view in a specific embodiment of the invention.
Specific embodiment
For enable the present invention above and other objects, features and advantages be clearer and more comprehensible, it is cited below particularly go out preferable implementation Example, and coordinate shown in attached drawing, it is described in detail below.
As shown in FIG. 1, FIG. 1 is present invention sandstone percent content isograms to constrain shallow-layer meandering stream channel boundary The flow chart of method.
In step 101, research area's Strata Comparison screen work is established.Identify sequence interface to individual well using drilling well, well-log information Carry out sequence dividing;On the basis of individual well division, sequence stratigraphic framework is established using lithology, electrical property feature and seismic data, The clearly floor position of the main force of research area sand group, as shown in Figure 2.
In step 102, the main force of research area sand group seismic horizon is explained.Using 3D data volume to the main force of research area sand group River layer position carries out full 3 D stereo explanation, as shown in Figure 3.
In step 103, extraction research area main force's sand group river attribute.In seismic work station, according to the solution of seismic horizon It releases as a result, the river attribute chosen amplitude generic attribute according to timing window is set and extract main force's sand group, makes river channel sand attributed graph, such as Shown in Fig. 4.
In step 104, establishment research area main layer position Channel sandstone percentage composition isogram.Count major channal stratum Thickness value and in its formation thickness river channel sand thickness value, the radiometer of two value is taken to calculate the sandstone on the set stratum Percentage composition value.The spreading direction and channel boundary substantially in river are obtained according to attributes extraction, utilize the sandstone hundred of individual well Point content value sketches out the sandstone percent content isogram in river, as shown in Figure 5.
In step 105, seismic properties river is folded into sandstone percent content figure, is portrayed using sandstone percent content figure The boundary in river.It is labeled in the form of block diagram.Seismic properties river is folded into sandstone percent content figure, is utilized Sandstone percent content figure portrays the boundary in river, as shown in Figure 6.

Claims (6)

1. with the method for sandstone percent content isogram constraint shallow-layer meandering stream channel boundary, which is characterized in that this uses sandstone The method of percentage composition isogram constraint shallow-layer meandering stream channel boundary includes:
Step 1, research area's Strata Comparison screen work is established;
Step 2, the main force of research area sand group seismic horizon is explained;
Step 3, extraction research area main force's sand group river attribute;
Step 4, establishment research area main layer position Channel sandstone percentage composition isogram;
Step 5, seismic properties river is folded into sandstone percent content figure, the side in river is portrayed using sandstone percent content figure Boundary.
2. the method according to claim 1 with sandstone percent content isogram constraint shallow-layer meandering stream channel boundary, It is characterized in that, in step 1, sequence dividing is carried out to individual well using drilling well, well-log information identification sequence interface;It is drawn in individual well On the basis of point, sequence stratigraphic framework is established using lithology, electrical property feature and seismic data, clearly studies the floor of the main force of area sand group Position.
3. the method according to claim 1 with sandstone percent content isogram constraint shallow-layer meandering stream channel boundary, It is characterized in that, in step 2, full 3 D stereo solution is carried out to the river floor position of the main force of research area sand group using 3D data volume It releases.
4. the method according to claim 1 with sandstone percent content isogram constraint shallow-layer meandering stream channel boundary, It is characterized in that, it in step 3, in seismic work station, according to the explanation results of seismic horizon, shakes according to timing window selection is set The river attribute of width generic attribute extraction main force sand group, makes river channel sand attributed graph.
5. the method according to claim 1 with sandstone percent content isogram constraint shallow-layer meandering stream channel boundary, It is characterized in that, in step 4, the thickness value on statistics major channal stratum and in its formation thickness river channel sand thickness Value, takes the radiometer of two value to calculate the sandstone percent content value on the set stratum;The spread in river is obtained according to attributes extraction Direction and channel boundary substantially sketch out the sandstone percent content isopleth in river using the sandstone percent content value of individual well Figure.
6. the method according to claim 1 with sandstone percent content isogram constraint shallow-layer meandering stream channel boundary, It is characterized in that, in steps of 5, being labeled in the form of block diagram, seismic properties river is folded into sandstone percentage contains In spirogram, the boundary in river is portrayed using sandstone percent content figure.
CN201611270719.2A 2016-12-30 2016-12-30 With the method for sandstone percent content isogram constraint shallow-layer meandering stream channel boundary Pending CN108267780A (en)

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CN109083640A (en) * 2018-09-26 2018-12-25 中国石油化工股份有限公司 Marine fluvial facies oil reservoir edge reserves effectively employ method
CN109143361A (en) * 2018-10-10 2019-01-04 西南石油大学 A kind of preparation method of the carbonate formation paleogeologic map based on sequence stratigraphy
CN109441438A (en) * 2018-10-18 2019-03-08 中国石油化工股份有限公司 A kind of structural complex lithologic boundary characterizing method
CN110501743A (en) * 2019-08-05 2019-11-26 中海石油(中国)有限公司 A kind of sandstone thickness isogram preparation method of reservoir architecture constraint
CN114969895A (en) * 2022-04-26 2022-08-30 长江大学 River channel profile morphology modeling method based on trend constraint

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CN105372703A (en) * 2015-08-11 2016-03-02 中国石油化工股份有限公司 River channel sand body fine-identification method
CN105182444A (en) * 2015-09-09 2015-12-23 中国海洋石油总公司 High resolution sequence stratigraphic framework constraint geostatistical inversion method

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109083640A (en) * 2018-09-26 2018-12-25 中国石油化工股份有限公司 Marine fluvial facies oil reservoir edge reserves effectively employ method
CN109083640B (en) * 2018-09-26 2022-05-03 中国石油化工股份有限公司 Method for effectively utilizing reserve of offshore river-phase oil reservoir edge
CN109143361A (en) * 2018-10-10 2019-01-04 西南石油大学 A kind of preparation method of the carbonate formation paleogeologic map based on sequence stratigraphy
CN109441438A (en) * 2018-10-18 2019-03-08 中国石油化工股份有限公司 A kind of structural complex lithologic boundary characterizing method
CN110501743A (en) * 2019-08-05 2019-11-26 中海石油(中国)有限公司 A kind of sandstone thickness isogram preparation method of reservoir architecture constraint
CN110501743B (en) * 2019-08-05 2021-06-15 中海石油(中国)有限公司 Sandstone thickness contour map compilation method based on reservoir configuration constraint
CN114969895A (en) * 2022-04-26 2022-08-30 长江大学 River channel profile morphology modeling method based on trend constraint

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