CN105298484A - Remaining oil description method based on reservoir architecture - Google Patents
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- CN105298484A CN105298484A CN201510712735.1A CN201510712735A CN105298484A CN 105298484 A CN105298484 A CN 105298484A CN 201510712735 A CN201510712735 A CN 201510712735A CN 105298484 A CN105298484 A CN 105298484A
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Abstract
The invention belongs to the technical field of explored and developed reservoir description, and particularly relates to a remaining oil description method based on reservoir architecture. The method comprises the steps that firstly, sedimentary facies of a target area are determined, and the sedimentary scale of the target area is subdivided; secondly, level dividing is performed on the reservoir architecture according to the subdivided sedimentary scale of the target area, and the reservoir architecture corresponding to a single sand body in the target area is determined; thirdly, a contact relation of the single sand body in the target area is built according to a reservoir architecture rock-electricity relation corresponding to a cored well in the target area; fourthly, according to the built contact relation of the single sand body in the target area, a reservoir architecture model covering the target area is built, and remaining oil distribution over control of the reservoir architecture covering the target area is determined. Accordingly, remaining oil potential tapping is effectively guided, and a basis is supplied to formulation of a development program.
Description
Technical field
The invention belongs to exploration and development Reservoir description field, be specifically related to a kind of remaining oil describing method based on reservoir architecture.
Background technology
Being in a lot of remaining oil tax in high water cut viscous heavy crude oil oil field is stored in single sand body, and the form of single sand body and contact relation control remaining oil distribution feature, and accurately portraying of single sand body is core and the key of finding out remaining oil.Reservoir architecture analysis is a kind of method describing single sand body, current domestic reservoir architecture describes to mainly contain to remaining oil sets up reservoir architecture model by encryption three-dimensional modeling grid method, sedimentary facies control method, sequential indicator modeling method, man-machine interaction method, carries out reservoir architecture numerical simulation analysis and obtains remaining oil distribution feature.As Lee adopted simple refined net method to set up the meticulous configuration model of single sand body along bright in August, 2011 in " Quercus Sec-tion Suber sandy braided river reservoir configuration and remaining oil distribution " that the 38th volume fourth phase Petroleum finance is delivered; Wang Feng passes through to describe the basic parameter of configuration blue in June, 2011 in " meandering river sand body endo conformation and the research of different development phases remaining oil distribution " that the 29th volume third phase deposition journal is delivered, utilize automatic imitation matching and the method establishment 3-d modelling model embedding phase model; Liu Yu engrave in September, 2011 the 32nd volume the 5th phase petroleum journal deliver " braided stream thick sand body internal-internal interlayer characterize-for grand celebration BLOCK OF LAMADIAN OIL FIELD " adopt multi-well correlation to predict channel bar dam endo conformation spread, under internal interface constraint, adopt sequential instruction random device to set up channel bar dam configuration model; " meandering river point bar subsurface reservoir configuration fine dissection method " that Yue great Li in July, 2007 delivers at the 28th volume the 4th phase petroleum journal and the beautiful phoenix of orchid have employed sequential indicator modeling method and man-machine interactively method establishment configuration model in " meandering river sand body 3-d modelling Geologic modeling and application " that the 32nd volume the 4th phase Southwest Petrol University's journal (natural science edition) is delivered in August, 2010.These methods are all get on to realize reservoir architecture modeling from improvement modeling method, are difficult to single sand body form and contact relation that accurate description characterizes remaining oil distribution feature, cause describing inaccuracy to the distribution characteristics of remaining oil in single sand body.
Summary of the invention
The object of the present invention is to provide a kind of remaining oil describing method based on reservoir architecture, overcome existing reservoir architecture modeling method and be difficult to accurate description single sand body form and contact relation, cause the coarse defect of remaining oil distribution feature interpretation in single sand body.
The method comprises the following steps:
1, target area sedimentary facies is determined, segmentation target area deposition scale.
1.1 prepare target area SEDIMENTARY FACIES ANALYSIS required information and data, comprising: core data, logging data, log data, particle size analysis analysis data, geological data, area deposition background information;
1.2 according to the target area SEDIMENTARY FACIES ANALYSIS required information of step 1.1 and data, use rock phase, log facies, seismic facies method, determine target area sedimentary facies and matter element system;
The 1.3 target area sedimentary facies determined according to step 1.2 are instruct with depositional model, segmentation target area deposition scale.
2, segment target area deposition scale according to step 1.3 and carry out time division of reservoir architecture level, determine reservoir architecture corresponding to target area single sand body.
The 2.1 target area deposition scales segmented according to step 1.3, utilize reservoir architecture level time division methods, target area are deposited the descending partition level of scale time;
Target area to be deposited the level time of the descending division of scale according to step 2.1 by 2.2, determines the reservoir architecture corresponding to target area single sand body deposition scale.
3, according to target area core data, logging data, the log data of step 1.1, by core description method, the relationship between lithology and logging of the reservoir architecture determined by step 2.2 corresponding to target area core hole is set up.
4, according to the relationship between lithology and logging of the reservoir architecture of the target area core hole of step 3 foundation, target area single sand body contact relation is set up.
The reservoir architecture the relationship between lithology and logging of the 4.1 target area core holes set up according to step 3, determines each individual well reservoir architecture feature of every mouthful, target area well;
4.2 along the parallel and vertical direction in the Sediment Source direction, target area that step 1.2 is determined, according to every mouthful, target area well each individual well reservoir architecture feature that step 4.1 obtains, utilize deposition scale, deposit thickness, ancient geoaraply, intake profile, water flooding degree, formation pressure data, determine company's well reservoir architecture feature in coverage goal district, determine single sand body contact relation between target area well;
Single sand body contact relation between the 4.3 target area wells obtained according to step 4.2, evaluating objects district single sand body contact relation pattern, sets up target area single sand body contact relation.
5, according to the target area single sand body contact relation that step 4 is set up, set up the reservoir architecture model in coverage goal district, determine the remaining oil distribution under the reservoir architecture control in coverage goal district.
The 5.1 target area single sand body contact relations obtained according to step 4.3, establish the characteristic parameter characterizing target area single sand body, application enhancements Boolean simulation method establishment target area single sand body reservoir architecture model;
The 5.2 target area single sand body reservoir architecture model datas set up according to step 5.1, carry out reservoir architecture numerical simulation, determine the remaining oil distribution feature under the reservoir architecture control in coverage goal district.
The present invention is on reservoir architecture analysis foundation, by determining target area sedimentary facies, segmentation target area deposition scale, carry out reservoir architecture level time according to segmentation target area deposition scale to divide, determine reservoir architecture corresponding to target area single sand body, the reservoir architecture the relationship between lithology and logging corresponding according to target area core hole, obtain reservoir architecture single sand body form and contact relation, the reservoir architecture model improving Boolean simulation method establishment sign single sand body form and contact relation is utilized to carry out numerical simulation, obtain the remaining oil distribution feature under reservoir architecture control, effectively can instruct Tapping Residual Oil, for the formulation of development plan provides foundation.
Accompanying drawing explanation
Fig. 1 is the technology of the present invention flow chart.
Fig. 2 is literary composition inspection 3 well reservoir architecture block diagrams.
Fig. 3 is 25-23 well individual well reservoir architecture block diagram.
Fig. 4 is for connecting well reservoir architecture sectional drawing along matter element system.
Fig. 5 is that vertical matter element system connects well reservoir architecture sectional drawing.
Fig. 6 is sand body contact relation ideograph.
Fig. 7 is reservoir architecture model.
Fig. 8 is that remaining oil distribution-note two under reservoir architecture controls adopts the change of physical property positive rhythm.
It is even that Fig. 9 is that remaining oil distribution-note two under reservoir architecture controls adopts physical property.
Figure 10 is that remaining oil distribution-two note one under reservoir architecture controls adopts the change of physical property positive rhythm.
It is even that Figure 11 is that remaining oil distribution-two note one under reservoir architecture controls adopts physical property.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, describing embodiment and accompanying drawing below in conjunction with Zhongyuan Oil Field Dong-pu Depression literary composition 25 eastern oil reservoir remaining oil distribution, the present invention is described in further details.As shown in Figure 1, the embodiment of the present invention comprises the following steps.
1, literary composition 25 eastern sedimentary facies are determined, segmentation literary composition 25 eastern deposition scales.
1.1 prepare literary composition 25 eastern SEDIMENTARY FACIES ANALYSIS required information and data, mainly comprise: core data, logging data, log data, particle size analysis analysis data, geological data, area deposition background information.
1.2 according to the eastern SEDIMENTARY FACIES ANALYSIS required information of the literary composition 25 of step 1.1 and data, use rock phase, log facies, seismic facies method, and determine that literary composition 25 east is Braided-river Deltas environment, matter element system comes from Nan Xi.
1.3 are instructed by Braided-river Deltas pattern, and segmentation literary composition 25 eastern braid deltas are delta plain, braided river delta front, braided stream prodelta; Braided river delta front is subdivided between distributary channel, distributary channel, leading edge sand, distal bar, estuary dam; Distributary channel is subdivided into distributary channel single sand body.
2, carry out reservoir architecture level time according to segmentation literary composition 25 eastern deposition scales to divide, determine reservoir architecture level corresponding to civilian 25 Dongdan sand bodies time.
2.1 divide according to the reservoir architecture rank that deposition scale is corresponding respectively, literary composition 25 eastern deposition scales drawn according to reservoir architecture division methods as shown in table 1 and eastern for literary composition 25 deposition scale is divided into 9 configuration levels time.The corresponding lamina of one-level configuration, the corresponding series of strata group of secondary configuration, three grades of configuration corresponding river course accretion prisms, level Four configuration corresponding river course single sand body, the corresponding combination channel of Pyatyi configuration, six grades of corresponding single deltas of configuration, seven grades of corresponding complex deltas of configuration, eight grades of corresponding sections of configuration, nine grades of corresponding groups of configuration.
Table 1 literary composition 25 eastern reservoir architecture hierarchical table
2.2 according to 2.1 braid deltas configuration levels time splitting scheme, and determining that the river course single sand body deposited mainly composed by remaining oil is level Four configuration in reservoir architecture level time.
3, literary composition inspection 3 well core datas, logging data, log data is utilized, by core description method, determine electrical property feature corresponding to literary composition inspection 3 well reservoir level Four configuration physical properties of rock, 3 well reservoir architecture block diagrams examined in the literary composition set up as shown in Figure 2, as shown in Figure 2, single river channel sand well log curve corresponding to reservoir level Four configuration is based on bell-box, rock is based on packsand, and medium coarse sand rock is rare, and sorting is better, in circularity-and good, often occur with positive rhythm.
4, examine 3 reservoir architecture the relationship between lithology and loggings according to literary composition, set up civilian 25 Dongdan sand body contact relation ideographs.
4.1 utilize literary composition inspection 3 well reservoir level Four configuration physical properties of rock and the relation of electrically closing feature, draw civilian 25-23 well individual well reservoir architecture block diagram as shown in Figure 3, determine the every mouthful of well individual well reservoir architecture feature in literary composition 25 east.
4.2 along wests, literary composition 25 eastern Sediment Source south to parallel and vertical direction, according to the every mouthful of well individual well reservoir architecture feature in literary composition 25 east that step 4.1 obtains, utilize deposition scale, deposit thickness, ancient geoaraply, intake profile, water flooding degree, formation pressure data, set up company's well reservoir architecture sectional drawing in covering literary composition 25 east as shown in Figure 4, Figure 5, determine single sand body contact relation between literary composition 25 eastern wells.
4.3, according to single sand body contact relation between literary composition 25 eastern wells, analyze civilian 25 Dongdan sand body contact relation patterns, set up literary composition 25 Dongdan sand body contact relation ideograph as shown in Figure 6.
5, according to set up literary composition 25 Dongdan sand body contact relation, set up reservoir architecture model, and model data is carried out numerical simulation obtain reservoir architecture control under remaining oil distribution characteristic pattern.
5.1 utilize the literary composition 25 Dongdan sand body contact relation ideograph shown in Fig. 6, length, width, thickness, migratory direction, the migration distance of total complementary clause 25 East River road single sand body, and set up corresponding supplemental characteristic respectively, application enhancements Boolean simulation method is optimized single sand body form, is optimized single sand body contact relation foundation reservoir architecture model as shown in Figure 7.
5.2 utilize reservoir level Four configuration model data, carry out reservoir architecture numerical simulation, the remaining oil Vertical Distribution Characteristics figure under the reservoir architecture obtained as shown in Fig. 8 ~ Figure 11 controls.
Remaining oil Vertical Distribution Characteristics figure under reservoir architecture according to Fig. 8 ~ Figure 11 controls, Remaining Oil Distribution under the research of Wen25 east block configuration controls is studied, find its Remaining Oil Distribution controlled: 1. edge facies tract, as edge, riverbed, embankment facies tract, angle, corner, limit, hyposmosis difference reservoir or Untabulated reservoirs; 2. the top of positive rhythm thick-layer; 3. shunt line between well, well pattern lose control of, the incomplete position of injection and extraction system.Thus, determine that oil reservoir is taped the latent power direction, for oil reservoir development adjustment provides foundation.
Claims (5)
1., based on a remaining oil describing method for reservoir architecture, its feature comprises the following steps:
(1) target area sedimentary facies is determined, segmentation target area deposition scale;
(2) carry out reservoir architecture level time according to step (1) segmentation target area deposition scale to divide, determine reservoir architecture corresponding to target area single sand body;
(3) according to target area core data, logging data, log data, by core description method, the relationship between lithology and logging of the reservoir architecture determined by step (2) corresponding to target area core hole is set up;
(4) the relationship between lithology and logging of the reservoir architecture of the target area core hole set up according to step (3), sets up target area single sand body contact relation;
(5) according to the target area single sand body contact relation that step (4) is set up, set up the reservoir architecture model in coverage goal district, determine the remaining oil distribution under the reservoir architecture control in coverage goal district.
2. a kind of remaining oil describing method based on reservoir architecture according to claim 1, is characterized in that: determine target area sedimentary facies, and the method for segmentation target area deposition scale is:
(1) target area SEDIMENTARY FACIES ANALYSIS required information and data are prepared: core data, logging data, log data, particle size analysis analysis data, geological data, area deposition background information;
(2) according to target area SEDIMENTARY FACIES ANALYSIS required information and data, use rock phase, log facies, seismic facies method, determine target area sedimentary facies and matter element system;
(3) according to the target area sedimentary facies determined, be instruct with depositional model, segmentation target area deposition scale.
3. a kind of remaining oil describing method based on reservoir architecture according to claim 1 and 2, is characterized in that: determine that the method for reservoir architecture corresponding to target area single sand body is:
(1) according to the target area deposition scale of segmentation, utilize reservoir architecture level time division methods, target area is deposited the descending partition level of scale time;
(2) according to the level time of the descending division of target area deposition scale, the reservoir architecture corresponding to target area single sand body deposition scale is determined.
4. a kind of remaining oil describing method based on reservoir architecture according to claim 1 and 2, is characterized in that: the method setting up target area single sand body contact relation is:
(1) according to the reservoir architecture the relationship between lithology and logging of target area core hole, each individual well reservoir architecture feature of every mouthful, target area well is determined;
(2) along the parallel and vertical direction in the Sediment Source direction, target area determined, according to every mouthful, target area well each individual well reservoir architecture feature, utilize deposition scale, deposit thickness, ancient geoaraply, intake profile, water flooding degree, formation pressure data, determine company's well reservoir architecture feature in coverage goal district, determine single sand body contact relation between target area well;
(3) according to single sand body contact relation between target area well, evaluating objects district single sand body contact relation pattern, sets up target area single sand body contact relation.
5. a kind of remaining oil describing method based on reservoir architecture according to claim 1 and 2, is characterized in that: determine that the method for the remaining oil distribution under the reservoir architecture control in coverage goal district is:
(1) according to target area single sand body contact relation, the characteristic parameter characterizing target area single sand body is established, application enhancements Boolean simulation method establishment target area single sand body reservoir architecture model;
(2) according to target area single sand body reservoir architecture model data, carry out reservoir architecture numerical simulation, determine the remaining oil distribution feature under the reservoir architecture control in coverage goal district.
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| CN106569287A (en) * | 2016-09-14 | 2017-04-19 | 中国石油化工股份有限公司 | Fan delta front reservoir prediction method based on composite sand body configuration model |
| CN107728202A (en) * | 2016-08-10 | 2018-02-23 | 中国石油化工股份有限公司 | Tight sandstone reservoir fine description method and system |
| CN107882535A (en) * | 2017-11-15 | 2018-04-06 | 广东石油化工学院 | A kind of process using horizontal well development hot dry rock heat energy |
| CN110858260A (en) * | 2018-08-17 | 2020-03-03 | 中国石油化工股份有限公司 | Method for describing plane distribution of sand bodies of single-stage river channel of delta river facies |
| CN111239820A (en) * | 2020-02-19 | 2020-06-05 | 西南石油大学 | Deep sea leaf reservoir configuration characterization method based on well-seismic mode fitting |
| CN111706317A (en) * | 2020-05-26 | 2020-09-25 | 中国石油天然气集团有限公司 | Method for determining distribution condition of residual oil of hypotonic reservoir in encryption adjusting area |
| CN111911140A (en) * | 2020-07-16 | 2020-11-10 | 中国石油天然气股份有限公司 | Method for simulating continental facies sedimentary reservoir |
| CN111985124A (en) * | 2020-07-15 | 2020-11-24 | 北京金阳普泰石油技术股份有限公司 | Single sand body model construction method, system, equipment and readable storage medium |
| CN113283648A (en) * | 2021-05-25 | 2021-08-20 | 中国石油化工股份有限公司 | Prediction method for residual oil in high-water-content old area |
| CN113283648B (en) * | 2021-05-25 | 2024-05-14 | 中国石油化工股份有限公司 | Prediction method suitable for high-water-content old-area residual oil |
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| CN105893655A (en) * | 2016-03-17 | 2016-08-24 | 西安石油大学 | Physical simulation method for petroleum reservoir architecture |
| CN105893655B (en) * | 2016-03-17 | 2019-01-22 | 西安石油大学 | A kind of physical simulating method of petroleum reservoir configuration |
| CN107728202A (en) * | 2016-08-10 | 2018-02-23 | 中国石油化工股份有限公司 | Tight sandstone reservoir fine description method and system |
| CN107728202B (en) * | 2016-08-10 | 2019-02-19 | 中国石油化工股份有限公司 | Tight sandstone reservoir fine description method and system |
| CN106569287A (en) * | 2016-09-14 | 2017-04-19 | 中国石油化工股份有限公司 | Fan delta front reservoir prediction method based on composite sand body configuration model |
| CN106569287B (en) * | 2016-09-14 | 2019-02-26 | 中国石油化工股份有限公司 | A kind of fan delta front method for predicting reservoir based on composed sand body configuration mode |
| CN107882535A (en) * | 2017-11-15 | 2018-04-06 | 广东石油化工学院 | A kind of process using horizontal well development hot dry rock heat energy |
| CN110858260A (en) * | 2018-08-17 | 2020-03-03 | 中国石油化工股份有限公司 | Method for describing plane distribution of sand bodies of single-stage river channel of delta river facies |
| CN111239820A (en) * | 2020-02-19 | 2020-06-05 | 西南石油大学 | Deep sea leaf reservoir configuration characterization method based on well-seismic mode fitting |
| CN111239820B (en) * | 2020-02-19 | 2022-03-08 | 西南石油大学 | Deep sea leaf reservoir configuration characterization method based on well-seismic mode fitting |
| CN111706317A (en) * | 2020-05-26 | 2020-09-25 | 中国石油天然气集团有限公司 | Method for determining distribution condition of residual oil of hypotonic reservoir in encryption adjusting area |
| CN111985124A (en) * | 2020-07-15 | 2020-11-24 | 北京金阳普泰石油技术股份有限公司 | Single sand body model construction method, system, equipment and readable storage medium |
| CN111985124B (en) * | 2020-07-15 | 2023-07-07 | 北京金阳普泰石油技术股份有限公司 | Single sand body model construction method, system, equipment and readable storage medium |
| CN111911140A (en) * | 2020-07-16 | 2020-11-10 | 中国石油天然气股份有限公司 | Method for simulating continental facies sedimentary reservoir |
| CN111911140B (en) * | 2020-07-16 | 2023-10-27 | 中国石油天然气股份有限公司 | Simulation method of land phase sedimentary reservoir |
| CN113283648A (en) * | 2021-05-25 | 2021-08-20 | 中国石油化工股份有限公司 | Prediction method for residual oil in high-water-content old area |
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Application publication date: 20160203 |