CN104018828B - A kind of meandering river sand body Reservoir Architectural based on evolution process analyzes method - Google Patents
A kind of meandering river sand body Reservoir Architectural based on evolution process analyzes method Download PDFInfo
- Publication number
- CN104018828B CN104018828B CN201410211934.XA CN201410211934A CN104018828B CN 104018828 B CN104018828 B CN 104018828B CN 201410211934 A CN201410211934 A CN 201410211934A CN 104018828 B CN104018828 B CN 104018828B
- Authority
- CN
- China
- Prior art keywords
- river
- point bar
- evolution
- lateral accretion
- accretion interbed
- 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.)
- Expired - Fee Related
Links
Abstract
The invention discloses a kind of meandering river sand body Reservoir Architectural based on evolution process and analyze method, comprise the steps: one, reduction river evolution process, reinvent building structure and the distribution characteristics of river channel sand, including confirmation, river channel evolution Orientation and the identification of point bar of single river channel；Two, analyze the side within point bar and amass body and the distribution of lateral accretion interbed and evolution Feature, set up Fine Reservoir interior building structure, differentiate including direction long-pending inside point bar and lateral accretion interbed tendency, the judgement at lateral accretion interbed inclination angle and obtain the peace surface development interval, vertical interlayer interval of long-pending interlayer inside point bar in point bar.The present invention has precisely dissection sand body internal structure, improves the feature of anatomical results and the true matching degree developed, can be widely applied to oil-gas exploration and development technical field.
Description
Technical field
The present invention relates to oil-gas exploration and development technical field, particularly relate to a kind of based on develop into
The meandering river sand body Reservoir Architectural of journey analyzes method.
Background technology
Along with the needs of oil field development, increasing geology expert starts again to pay attention to single sand body
Interior building structure is to reservoir heterogeneity, seepage field, injectant Flooding Efficiency and remaining oil
Form the control action of distribution.Some oil field main force domestic interval grow have the meandering stream blazoned and
Meander delta reservoir, its inner structural features has become and has controlled the main of remaining oil distribution at present
Factor.As far back as the eighties in last century, the geologist of older generation just recognizes different reservoirs
The architectural feature impact on exploration and development, discusses the Development characteristics of same types of reservoir, particularly
Within fluvial depositional reservoir every interlayer on exploitation impact, define fluvial facies research the most square
Method and thinking.After the nineties, the domestic feature to river, segmentation and fine sedimentary facies are studied more
It is deep, is not only related to aeolotropic characteristics and the exploitation Flooding Characteristics of the substratum of the main force, also
Expand to the non-the main force even characterization technique of Untabulated reservoirs.Since entering this century, reservoir is built
Structural analysis point-score is increasingly becoming the mainstream technology that fluvial depositional reservoir anisotropism characterizes, based on close
Well pattern, horizontal well and modeling and digital-to-analogue technology, structure and the table of Development response feature to reservoir
Levy the most deep, made technical place mat for further modification scenario.But inside reservoir
Structural characterization often focuses on sand body plane distribution, considers single sandbody features more, very
Sand body syntagmatic can be analyzed from sedimentary evolution process less so that anatomical results is with true
Evolution process cannot accomplish to mate completely, and the forming process of sand body is not reached reasonably explanation,
This indication anatomical results can represent a process that can not occur, and this causes Some Domestic
Scholar starts to suspect the reliability analyzing conclusion, also has influence on characterization result in modification scenario
Effect.
For the contradiction between sand body syntagmatic anatomical results and true evolution process, domestic
Theoretical circles have done substantial amounts of research work, to ensureing verity and the reasonability of anatomical results,
But due to the problem of Research Thinking, there is no bigger progress all the time in this field.
Summary of the invention
The invention aims to overcome the deficiency of above-mentioned background technology, it is provided that a kind of based on
The meandering river sand body Reservoir Architectural of evolution process analyzes method, to precisely dissecting in sand body
Portion's structure, improves anatomical results and the true matching degree developed.
A kind of based on evolution process the meandering river sand body Reservoir Architectural that the present invention provides divides
Analysis method, comprises the steps: one, reduction river evolution process, reinvents building of river channel sand
Building structure and distribution characteristics, including confirmation, river channel evolution Orientation and the point of single river channel
The identification on dam；Two, analyze the side within point bar and amass body and the distribution of lateral accretion interbed and evolution Feature,
Set up Fine Reservoir interior building structure, sentence including direction long-pending inside point bar and lateral accretion interbed tendency
Not, the judgement at lateral accretion interbed inclination angle and obtain inside point bar between the vertical interlayer of long-pending interlayer in point bar
Every peace surface development interval.
In technique scheme, described step one include following some: (one) single river channel
Confirmation: combine isopach map of sand bodies, identify single river channel mark in river course band and differentiate river course band
With non-river course band, logs based on different sedimentary micro sand bodies show the growth position in river course
Put；(2) river channel evolution direction is analyzed: identify the final discard position in river course and given river course
Initial position, trend based on isopach map of sand bodies and Evolution, in conjunction with the shape of log
State, determines final discard position, and in river course band position of center line near, along more suitable
Nogata is to providing original river course streamlined position；Determine in different channel deposits with isopach map of sand bodies
The heart, carries out phase time combination based on the abandoned channel single river channel to having identified, with different curves
Sign river course, in the streamline distribution of different times river wriggle form, draws different times river
Evolutionary process；(3) point bar is identified: inside curved strip high determined by streamline, abandoned channel
And high caliper zones is mark, determines point bar development position and draw a circle to approve growth scope；Described step 2
Including following some: what direction and lateral accretion interbed tendency were amassed in (one) point bar side sentences knowledge: according to point
Dam sand body streamline confirms the evolution direction of point bar sand body, wherein, the tendency of point bar sand body and evolution
Direction is consistent, and the outer convex direction of streamline is point bar side and amasss accretion direction, namely point bar private side
Long-pending interlayer incline direction；(2) judgement at lateral accretion interbed inclination angle in point bar: inclining of lateral accretion interbed
Angle judges mainly to have two sources: the lateral accretion interbed in (1) antithetical phrase well contrasts, according to same well site
The adjacent antithetical phrase well with relatively closely spaced, directly contrasts lateral accretion interbed, obtains lateral accretion interbed
Tendency；(2) relative to the inclination angle on stratum, single lateral accretion interbed based on rock core identification determines that side is amassed
The inclination angle of interlayer；(3) the plane growth obtaining long-pending interlayer inside point bar is spaced: lateral accretion interbed
Growth interval include vertical interlayer interval peace surface development interval, vertical interlayer be spaced by well point
The lateral accretion interbed of Direct Recognition is confirmed, and is able to accordingly confirm vertical from rock core or log
Interlayer is spaced in the development position of well point；Plane grows interval by the long-pending folder in vertical interlayer interval and side
Layer angle calcu-lation obtains, i.e. plane grows interval equal to vertical interlayer interval and lateral accretion interbed inclination angle
Cotangent is long-pending.
In technique scheme, in described step 2 (two). (1st) item, side is amassed
The tendency of interlayer needs to make angle correct relative to streamline；Described step 2 (two). (2nd)
Xiang Zhong, the inclination angle of lateral accretion interbed needs with the dip correction on stratum.
In technique scheme, described step 2 also includes herein below: (four) side is long-pending to press from both sides
Layer forecast of distribution: the lateral accretion interbed distribution that plane is grown interval numerical value surge well point is drilled with river course
Change streamline, determine the lateral accretion interbed distribution in plane, work out point bar internal plane structure chart.
In technique scheme, in described step one (one) point, log includes list
Borehole logging tool curve and even borehole logging tool curve.
Present invention meandering river sand body based on evolution process Reservoir Architectural analyzes method, has
Following beneficial effect:
1, can to reduce river well many for the river evolution method of reinventing that the present invention provides
The form of phase swing and position, improve the cognition degree to research area's depositional environment, make result
There is the highest interpretability；
2, the present invention carries out sand body internal structure solution on the basis of having reinvented river evolution
Cut open, based on fine well logging and rock core identification technology, for the identification of point bar inside lateral accretion interbed
There is higher reliability, improve anatomical results and the true matching degree developed.
Accompanying drawing explanation
Fig. 1 is present invention meandering river sand body based on evolution process Reservoir Architectural analysis side
The division symbolizing schematic diagram of single river channel in the embodiment of method；
Fig. 2 is present invention meandering river sand body based on evolution process Reservoir Architectural analysis side
For judging the SII1+2b isopach map of sand bodies in abandoned channel and river course in latter stage in the embodiment of method；
Fig. 3 is present invention meandering river sand body based on evolution process Reservoir Architectural analysis side
In the embodiment of method on the little layer plane of SII1+2b latter stage river course identification schematic diagram；
Fig. 4 is present invention meandering river sand body based on evolution process Reservoir Architectural analysis side
SII1+2b unit and SII12 unit river course in latter stage spread figure in the embodiment of method；
Fig. 5 is present invention meandering river sand body based on evolution process Reservoir Architectural analysis side
Swing analysis figure in river course in the embodiment of method；
Fig. 6 is present invention meandering river sand body based on evolution process Reservoir Architectural analysis side
The measurement of dip angle schematic diagram of shale coating layer in the embodiment of method；
Fig. 7 is present invention meandering river sand body based on evolution process Reservoir Architectural analysis side
In the embodiment of method, body flat distribution map is amassed in side；
Fig. 8 is present invention meandering river sand body based on evolution process Reservoir Architectural analysis side
The schematic flow sheet of method.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment the present invention is described in further detail, but this enforcement
Example should not be construed as limitation of the present invention.
See Fig. 1 to Fig. 8, present invention meandering river sand body based on evolution process reservoir building knot
Structure is analyzed method and is described further for embodiment with Daqing oil field sand backlands district.
Daqing oil field Sa north area SII1+2b and SII12 substratum is formed at Yao Jia group late period to tender
In early days, during down warping region, whole basin's verge speed substantially slows down river group, and weather is become from dry
Moist climate, northern erosion source region lifting, thing source is abundant, and gradient is more slow, and lake strandline is near Sa
Middle area, for delta plain high bent portions fluid stream channel.Sand-body distribution is wide, core intersection is big,
River course is internal spreads more interchannel deposit.Based on the multistage rhythm inside sand body, river course has point
The feature that fork converges, sand body is obvious ribbon, and meander is relatively big, on delta plain
High bend flow river.
For this region, the present invention carries out Sandbody Reservoirs building structure by the following technical solutions and divides
Analysis:
One, reduction river evolution process, reinvents building structure and the distribution characteristics of river channel sand
First river course band sand body is gone out with non-according to individual well log with even borehole logging tool Curves Recognition
River course band sand body, wherein, the natural potential (SP, spontaneous potential) of river course band sand body
Fill with showing as case on gamma (GR, natural gamma ray) log, bell, fall
Bell, such as B2-310-P50 well in SII1+2b layer；Non-river course band sand body be river overflow bank sink
Long-pending, show as zigzag or low amplitude projection above its natural potential and gamma logging, as
B3-342-P53 well.After identifying river course band sand body, then enter on the basis of river course band sand body
The identification of row single river channel.
(1) single river channel identification
Different origins sand body the most difference in lithology, electrically peace section geometric shape, because of
This well data enriched under the conditions of utilizing dense well pattern combines the spy of high camber meandering stream river evolution
Point, the tracing pattern of each well point and characteristics of combination spatially, comprehensively identify single river channel.
And the identification of single river channel it is critical only that the identification on single river channel border, at the base identifying river course band
Determine the recognition marks on 4 kinds of single river channel borders on plinth, be just provided simultaneously with these 4 kinds of recognition marks
Single river channel border can be delimited, referring specifically to Fig. 1.
(1) discontinuous interchannel sand (also known as non-river course band sand body)
On Plain, the large area sand body of certain limit distribution is laterally to be put together by a plurality of river course,
But two between river course, bifurcated occurs always, leave the trace of interchannel deposit, according to along river
The discontinuous interchannel sand of road distribution divides different river course.Interchannel sand physical property is poor and thickness is thin,
Dentation or low amplitude projection is shown as, such as B3-342-P52 and B3-342-P53 on log
Two mouthfuls of wells.
(2) abandoned channel
Inside meander belt, abandoned channel represents the end that point bar is grown, and Final Issue
Secondary abandoned channel represents changing its course of a phase river deposition, so according to abandoned channel deposit thing
Single river channel can be divided.Abandoned channel shows as the natural potential of bottom on log
It is box or bell with gamma curve, top or near baseline or show as dentation, bottom is reflected
Argillaceous sediment, top reflection sand mud deposits, alternately such as B2-311-P47 well.
(3) river channel sand difference in thickness
Due to the river channel sand that the separation capacity in different river courses is affected by various factors, different
Will necessarily there is difference in thickness, thereby results in deposit and necessarily occurs difference on thickness, if
This border can be followed the trail of within the specific limits, then may also be used for dividing single river course, as
Although two mouthfuls of wells of B2-310-P49 with B2-310-P50 are adjacent but differ greatly on thickness, be
Different single river courses.
(4) tracing pattern difference
Different river courses, owing to being affected by the ancient end shape of deposition, have different deposits and carry energy
Power, causes the log response characteristics in different river course necessarily to have certain difference, different songs
Line morphology can be used to carry out single river course and divides.Such as B2-340-P52 Yu B2-340-P53 two mouthfuls
Well is adjacent but form of logs different, reflects different river channel sands.
(2) river channel evolution analysis
On the basis of single river course divides, identify log, and combine a plurality of profile and sand
Body isopath map, determines the river course and abandoned channel in latter stage in single river channel, by analyzing river
Evolutionary process defines the border of point bar, and concrete identification process is as follows:
(1) determination in river course in latter stage
Owing to, after new river course is formed, current change its course, old river course originally gradually loses
As the effect of current pass, forming Lentic environment, urban river water power is more weak, particulate
Suspended material gradually deposits, deposit based on shale, the form on curve and abandoned channel
Similar, after whole piece river course is filled with, the sand thickness in single river channel in the plane should
Show as a most thinning region of sand body the most continuous, traceable, can comprehensive sand body
Isopath map and profile determine river course in latter stage.
(2) determination of abandoned channel
Judgement for abandoned channel is divided into 2 kinds of situations, discarded firstly for have well point to control
River course, directly can judge by form of logs, abandoned channel geometric shape is with C
Shape or O shape are main, and scale is smaller, even if under the conditions of dense well pattern, it is also not possible to
Completely by well point control, in subsurface reservoir, only small part abandoned channel could be controlled by well point；
Abandoned channel for not having well point to control then needs comprehensively to judge, is determining single river channel
On the basis of latter stage river course, according to profile and isopach map of sand bodies, at meandering stream concave bank such as
There is certain thickness sand body in fruit, both sides, abandoned channel log presents different features, and
Isopach map of sand bodies shows as different sand thickness centers, then it is assumed that there is discarded river
Road.
As a example by Fig. 2, the left figure of Fig. 2 is SII1+2b isopach map of sand bodies, B3-351 well array
B3-351-P51 to B3-351-P53 well, shows as 2 mid-depths on isopach map of sand bodies,
Be relatively thin region at middle B3-351-P52 well, river in evolutionary process gradually to
Left bending, therefore judges that B3-351-P52 is the place that latter stage, river course passed through, at B3-351-P51
Edge is abandoned channel.
See Fig. 3, according to the form of B3-352-P56 Yu B3-353-SP57 log, then
Predict that this well point is the place that latter stage, river course passed through, pre-by combining upstream B3-351 well array institute
The region, river course in latter stage surveyed, is combined into the river course in latter stage of adjacent 2 bends the most in the plane, recognizes
For these 2 well points be latter stage river course pass through region.
Therefore by combining the feature analysis of section peace face isopach map of sand bodies, combine in the plane
The most measurable go out latter stage river course, SII1+2b with SII12 substratum concrete river course form refers to respectively
A figure and B in Fig. 4 scheme.
(3) river course initial position
River course is the most straight when being newly formed, and therefore, the initial position in river course is one
The most straight river.Later due to the spiral water flow in river, making concave bank corrode, convex bank deposits,
River curvature is gradually increased.
(4) river course swing analysis
For being positioned at the SII1+2b substratum in the left figure of Fig. 5, river course be initially 2 the most suitable
Straight single river course, then curvature is gradually increased, and when increasing to a certain degree, is making due to flood
With, A river course bursts at B3-D5 to B3-351 well array, forms breach river course, and river changes
Road, old river course gradually discards, and new river course is the predominating path that water body passes through；B river course exists
B3-360 well array changes its course, and channel line moves eastwards, and the oldest river course is discarded, new
River course continues to develop, finally discarded in certain whole piece in period river course, forms river course in latter stage.For
It is positioned at the SII12 substratum in the right figure of Fig. 5, is also classified into 2 single river courses in the starting stage, specifically
Seeing the streamline 3.1 in Fig. 5 and streamline 4.1, river course is gradually curved, and river course is the most in the east
Developing, last 2 rivers converge in two river courses of B3-360-P51, merge into downwards one
River course.
(5) river course streamline
On the basis of analyzing river channel evolution, according to the evolutionary process in river course, given river channel evolution
The channel thread of different times to.SII1+2b substratum in the left figure of Fig. 5, A river course is by streamline
1.1 are gradually curved, and to streamline 1.2, finally develop to streamline 1.3, and whole piece river course is discarded, for
Latter stage river course；B river course is by streamline 2.1-streamline 2.2-streamline 2.3-streamline 2.4-streamline 2.5-streamline
2.6, river course finally arrives streamline 2.6 and discards, and forms river course in latter stage.SII12 in the right figure of Fig. 5
Substratum, A river course is gradually curved by streamline 3.1, to streamline 3.2, finally develops to streamline 3.3,
Whole piece river course is discarded, for river course in latter stage；B river course is flowed by streamline 4.1-streamline 4.2-streamline 4.3-
Line 4.4-streamline 4.5-streamline 4.6, river course finally arrives streamline 4.6 and discards, forms river course in latter stage.
(3) point bar identification
Point bar is the skeleton sandstone in meandering channel reservoir, is main oil storage unit, therefore point bar
Identification and important.The identification of point bar is mainly by tracing pattern, sandbody features and discards
River course is identified.River is in evolutionary process, when abandoned channel is formed, represents one
Point bar is grown and is terminated, and therefore the existence of abandoned channel has meant that point bar is grown, and point bar is in well logging
On curve, natural potential is mainly bell or box, is that thickness is bigger on isopach map of sand bodies
Region.
Two, body and the distribution of lateral accretion interbed and evolution Feature are amassed in the side within point bar, analyze fine
Reservoir interior building structure
(1) judgement of lateral accretion interbed tendency
Lateral accretion interbed is the most typically crescent, amasss process, side according to the side of point bar sand body
Long-pending interlayer always tilts to direction, abandoned channel, from made ground pattern it can be seen that folder is amassed in side
The side of layer is amassed direction and is directed to the concave bank of abandoned channel.
(2) body, lateral accretion interbed inclination angle and the judgement of scale are amassed in side
Made ground and research of appearing show, the inclination angle that side deposition is draped over one's shoulders is generally 5 °～10 °.
When judging point bar lateral accretion interbed inclination angle as shown in Figure 6, can sentence by rock core information
Disconnected.After had certain thickness horizontal mud stone to be corrected by sand body top, it is judged that
B2-322-JP43 rock core shale inclination layer is respectively 6 ° and 10 °.
The internal lateral accretion interbed of meandering river point bar and stratum oblique, formerly judge the base that interlayer is inclined to
The inclination angle of lateral accretion interbed can be judged on plinth by antithetical phrase well, antithetical phrase well is defined as same folder
Lateral accretion interbed inclination angle is judged according to the vertical difference of well spacing and lateral accretion interbed in the case of Ceng.
Two mouthfuls of wells of SII1+2b substratum B3-361-P48 Yu B-D6-435, well spacing is 32.8, long-pending side, side
To for from west to east, sand thickness is respectively the point bar sand body of 4.1 meters and 3.6 meters, vertical
On determine that same lateral accretion interbed, vertical upper difference are 2.5m.Therefore judge that its inclination angle is arctan
(2.5/32.8)=4.4 degree, on the basis of body thickness and angle are amassed in clear and definite side, according to right angle
Relation, the level interval calculating lateral accretion interbed is 16-20 rice, and the development length of lateral accretion interbed is
35.6 meters.
Comprehensive antithetical phrase well and rock core information, the inclination angle of estimation side deposition rock is main at 4 °～10 °.
(3) body and muddy intercalation distribution characteristics are amassed in side
According to theory position, on the basis of offside lamination individual well identification and inter-wells predicting, for
Describe the plane configuration of point bar sand body lateral accretion interbed, direction, density equal distribution feature are amassed in side,
SII1+2b with SII12 substratum is set up 20 sections respectively be described, it was predicted that side is amassed
Interlayer substantially form in the plane.
What Fig. 7 showed is that body section and plane characteristic are amassed in SII1+2b substratum side.In conjunction with the whole district
River channel evolution feature, in river course from north in the evolutionary process in south, B3-352-well array curve
Tracing pattern, is divided into 2 single point bars by upstream point bar, is respectively divided into 6 and 10 sides
Long-pending body, the point bar that will be close to downstream is divided into 11 sides to amass body.
The river evolution method of reinventing that the present invention provides can be reduced river many phases well
The form swung and position, improve the cognition degree to research area's depositional environment, make result have
There is the highest interpretability.Carry out inside sand body on the basis of having reinvented river evolution
Anatomical Structure, and based on fine well logging and rock core identification technology, folder long-pending for point bar private side
The identification of layer has higher reliability, and improve anatomical results and true evolution mates journey
Degree.
Obviously, those skilled in the art the present invention can be carried out various change and modification and not
Depart from the spirit and scope of the present invention.So, if these amendments of the present invention and modification belong to
Within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these
Change and including modification.
The content not being described in detail in this specification belongs to known in professional and technical personnel in the field
Prior art.
Claims (4)
1. meandering river sand body Reservoir Architectural based on evolution process analyzes a method, its
It is characterised by: comprise the steps:
One, reduction river evolution process, reinvents building structure and the distribution characteristics of river channel sand,
Confirmation, river channel evolution Orientation and the identification of point bar including single river channel；
Described step one include following some:
(1) confirmation of single river channel: combine isopach map of sand bodies, single in identifying river course band
River course mark differentiates Dai Yufei river course, river course band, logs based on different sedimentary micro sand bodies
Show the development position in river course；
(2) river channel evolution direction is analyzed: identify the final discard position in river course and given river course
Initial position, trend based on isopach map of sand bodies and Evolution, in conjunction with the shape of log
State, determines final discard position, and in river course band position of center line near, along more suitable
Nogata is to providing original river course streamlined position；Determine in different channel deposits with isopach map of sand bodies
The heart, carries out phase time combination based on the abandoned channel single river channel to having identified, with different curves
Sign river course, in the streamline distribution of different times river wriggle form, draws different times river
Evolutionary process；
(3) point bar is identified: with inside curved strip high determined by streamline, abandoned channel and high thick
Degree district is mark, determines point bar development position and draws a circle to approve growth scope；
Two, analyze the side within point bar and amass body and the distribution of lateral accretion interbed and evolution Feature, set up
Fine Reservoir interior building structure, differentiate including direction long-pending inside point bar and lateral accretion interbed tendency,
The judgement at lateral accretion interbed inclination angle and obtain the vertical interlayer interval of long-pending interlayer inside point bar in point bar
Peace surface development interval；
Described step 2 include following some:
(1) what direction and lateral accretion interbed tendency were amassed in point bar side sentences knowledge: according to point bar sand body streamline
Confirming the evolution direction of point bar sand body, wherein, the tendency of point bar sand body is consistent with evolution direction,
The outer convex direction of streamline is point bar side and amasss accretion direction, namely the internal lateral accretion interbed of point bar tilts
Direction；
(2) judgement at lateral accretion interbed inclination angle in point bar: the inclination angle of lateral accretion interbed judges mainly have
Two sources: the lateral accretion interbed contrast in (1) antithetical phrase well, according to adjacent the having relatively in well site
Closely-spaced antithetical phrase well, directly contrasts lateral accretion interbed, obtains the tendency of lateral accretion interbed；(2) base
Determine the inclination angle of lateral accretion interbed relative to the inclination angle on stratum in the single lateral accretion interbed of rock core identification；
(3) obtain the plane of long-pending interlayer inside point bar and grow interval: between the growth of lateral accretion interbed
Every including peace surface development interval, vertical interlayer interval, vertical interlayer is spaced by well point Direct Recognition
Lateral accretion interbed confirmed, and be able to accordingly confirm vertical interlayer interval from rock core or log
Development position in well point；Plane grows interval by vertical interlayer interval and lateral accretion interbed angle meter
Obtain, i.e. plane grow interval equal to vertical interlayer interval with lateral accretion interbed inclination angle cotangent it
Long-pending.
Meandering river sand body reservoir based on evolution process the most according to claim 1 is built
Structure analysis method, it is characterised in that: in described step 2 (two). (1st) item,
The tendency of lateral accretion interbed needs to make angle correct relative to streamline；Described step 2 (two) point
In (2nd) item, the inclination angle of lateral accretion interbed needs with the dip correction on stratum.
Meandering river sand body reservoir based on evolution process the most according to claim 2 is built
Structure analysis method, it is characterised in that: described step 2 also includes herein below:
(4) lateral accretion interbed forecast of distribution: the side that plane is grown interval numerical value surge well point is amassed
Interbed distribution and river channel evolution streamline, determine the lateral accretion interbed distribution in plane, and establishment point bar is put down
Face cut-away view.
Meandering stream based on evolution process the most according to any one of claim 1 to 3
Sandbody Reservoirs structural analysis method, it is characterised in that: in described step one (one) point,
Log includes individual well log and connects borehole logging tool curve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410211934.XA CN104018828B (en) | 2014-05-20 | 2014-05-20 | A kind of meandering river sand body Reservoir Architectural based on evolution process analyzes method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410211934.XA CN104018828B (en) | 2014-05-20 | 2014-05-20 | A kind of meandering river sand body Reservoir Architectural based on evolution process analyzes method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104018828A CN104018828A (en) | 2014-09-03 |
| CN104018828B true CN104018828B (en) | 2017-01-04 |
Family
ID=51435787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410211934.XA Expired - Fee Related CN104018828B (en) | 2014-05-20 | 2014-05-20 | A kind of meandering river sand body Reservoir Architectural based on evolution process analyzes method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104018828B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107463721A (en) * | 2017-05-03 | 2017-12-12 | 西南石油大学 | A kind of modeling method of meandering river point bar difference evolutionary pattern plane configuration |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104453877B (en) * | 2014-11-05 | 2018-05-15 | 长江大学 | A kind of buried point bar of meandering sand body history method for reconstructing in underground |
| CN104533402B (en) * | 2014-11-25 | 2017-11-14 | 长江大学 | A kind of more phases are stacked compound braided channel sand body and determine method by stages |
| CN104915990B (en) * | 2015-05-20 | 2018-03-13 | 中国石油天然气集团公司 | A kind of method of meticulous depiction fluvial depositional reservoir spatial distribution |
| CN105116447B (en) * | 2015-08-14 | 2017-08-25 | 中国海洋石油总公司 | A kind of geology river course discriminating direction method based on curvature anomalies band |
| CN105069802B (en) * | 2015-08-18 | 2017-11-03 | 中国海洋石油总公司 | A kind of point bar discriminating direction method based on geometrical morphological analysis |
| CN105334535B (en) * | 2015-11-13 | 2018-04-17 | 中国石油化工股份有限公司 | A kind of method for identifying the thin hidden lithologic deposit of reservoir |
| CN109541685B (en) * | 2017-09-22 | 2020-06-09 | 中国石油天然气股份有限公司 | River channel sand body identification method |
| CN108119133B (en) * | 2017-11-13 | 2021-09-28 | 中国石油天然气股份有限公司 | Method and device for determining reservoir deposition process |
| CN108957582B (en) * | 2018-06-22 | 2020-01-07 | 中国石油天然气股份有限公司 | Sand body plane form determining method and system |
| CN109025981A (en) * | 2018-06-22 | 2018-12-18 | 中国石油天然气股份有限公司 | Accumulate correlation of sand bodies method and system in meandering stream side |
| CN110858260B (en) * | 2018-08-17 | 2023-08-01 | 中国石油化工股份有限公司 | Method for describing plane distribution of single-period secondary river channel sand body of triangular intercontinental phase |
| CN110082835A (en) * | 2019-03-25 | 2019-08-02 | 中国石油化工股份有限公司 | Meandering river point bar loose sand reservoir properties novel method for modeling |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562048B (en) * | 2010-12-30 | 2014-08-13 | 长江大学 | Method for predicting low-porosity and low-permeability clasolite effective reservoir at high-diagenesis stage |
-
2014
- 2014-05-20 CN CN201410211934.XA patent/CN104018828B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107463721A (en) * | 2017-05-03 | 2017-12-12 | 西南石油大学 | A kind of modeling method of meandering river point bar difference evolutionary pattern plane configuration |
| CN107463721B (en) * | 2017-05-03 | 2020-04-21 | 西南石油大学 | Modeling method for different evolution mode plane forms of point dam of meandering stream |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104018828A (en) | 2014-09-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104018828B (en) | A kind of meandering river sand body Reservoir Architectural based on evolution process analyzes method | |
| US10365387B1 (en) | Method for secondary exploration of old oil area in fault subsidence basin | |
| Janocko et al. | The diversity of deep-water sinuous channel belts and slope valley-fill complexes | |
| CN106569287B (en) | A kind of fan delta front method for predicting reservoir based on composed sand body configuration mode | |
| Winker et al. | Sedimentary dynamics of the salt-dominated continental slope, Gulf of Mexico: integration of observations from the seafloor, near-surface, and deep subsurface | |
| CN107203651A (en) | A kind of braided stream DAMAGE OF TIGHT SAND GAS RESERVOIRS reservoir architecture anatomic method | |
| Jolley et al. | Sedimentological response of an alluvial system to Neogene thrust tectonics, Atacama Desert, northern Chile | |
| CN105116467B (en) | Analyze of Nearshore Subaqueous Fans glutenite sedimentation unit body division methods | |
| CN103604916B (en) | A kind of continuous and compact sandstone gas hides measuring method and the system of gas range | |
| CN105467463B (en) | Analyze of Nearshore Subaqueous Fans fluvial deposition cell cube maximum extended distance Quantitative prediction methods | |
| McGee et al. | Geologic models and reservoir geometries of Auger Field, deepwater Gulf of Mexico | |
| CN111080789B (en) | Method and device for determining well position of encrypted well in complex fault block oil reservoir exploitation area | |
| CN104453877A (en) | Underground deep-buried meander point dam sand body historical reconstruction method | |
| CN111624677B (en) | Compact sandstone gas reservoir single-phase river channel sand body boundary depicting method | |
| CN104018827A (en) | Delta sand body internal structure analysis method based on overlapped lobes | |
| CN108334665A (en) | A kind of braided stream reservoir architecture unit quantitatively characterizing method | |
| CN104653156A (en) | Fragmental rock oil and gas reservoir development unit partitioning method | |
| CN111967631A (en) | Method for predicting prospect area of early mineralization of sandstone-type uranium deposit exploration | |
| Li et al. | Transformation of sediment delivery and dispersal patterns controlled by relay-ramp evolution along the boundary fault of a lacustrine rift: the Eocene Shahejie formation, Dongying Sag, Bohai Bay Basin, NE China | |
| Liu et al. | The Control Theory and Application for Well Pattern Optimization of Heterogeneous Sandstone Reservoirs | |
| CN105468890B (en) | Analyze of Nearshore Subaqueous Fans fluvial deposition cell cube width granularity Forecasting Methodology | |
| CN110703325B (en) | Hydrocarbon source identification method based on structure difference activity | |
| CN112711069B (en) | Sand point dam prediction method based on plain area curved stream river channel evolution | |
| Brekke et al. | Using high-resolution microresistivity image logs to reconstruct paleoenvironments and stratal architectures: An example from the McMurray Formation, Leismer area, northeastern Alberta, Canada | |
| CN112213465B (en) | Method for recovering ancient lava flow direction and original form of volcanic mechanism based on electric imaging logging |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170104 Termination date: 20190520 |