CN104991274B - The Favorable Areas method for optimizing of single trap level under a variety of geologic(al) factor quantity constraints - Google Patents

Abstract

The Favorable Areas method for optimizing of single trap level under a variety of geologic(al) factor quantity constraints, using high-resolution Stratigraphic framework to rely on, sedimentary formation when sedimentation unit level etc. is marked off on longitudinal direction, according to log data, logging data, formation testing data, well log interpretation profit data and geological data, the profit for establishing 5 kinds of two Sandstone Sections split sub-model, realize that the level profit of the single sand body under sedimentation unit chronostratigraphic architecture is split point, develop single sand body grade substratum top surface structural map, sedimentary micro plan and oil and water zonation rule, according to channel boundary, tomography, microstructures and sandstone up pinchout line determine the single trap of oil-containing, carry out trap area overlapping to the single trap of oil-containing in different single sand bodies level substratum and trap thickness is cumulative, with reference to Trap Typesof, reservoir porosity, reservoir buried depth, organic matter type, maturity, 7 Favorable Areas evaluation indexes of hydrocarbon intensity and source-reservoir-seal assemblage, set up reservoir forming factor probability and into matching probability dual factors Favorable Areas evaluation model is hidden, preferably go out Favorable Areas.

Description

The Favorable Areas method for optimizing of single trap level under a variety of geologic(al) factor quantity constraints

Technical field

The present invention relates to the Favorable Areas method for optimizing of the level of the single trap under a variety of geologic(al) factor quantity constraints, belong to oil gas Exploration deployment technical field.

Background technology

On oil-gas exploration Favorable Areas method for optimizing, domestic and international relevant report is countless, emerge in an endless stream, method It is different, but with the otherness for deepening continuously and studying area's geologic feature of exploration and development process, conventional Favorable Areas is excellent Choosing method can not meet the demand of current exploration and development；Thus, for the research special accumulating condition in area and geologic feature, have Destination proposes that Favorable Areas method for optimizing is extremely necessary.

Conventional Favorable Areas method for optimizing is summed up predominantly qualitative analysis and quantitative analysis both direction.Wherein, it is fixed Property analysis include polynary pool-controlling factors overlay technique, oil-control type method and " key element overlapping, process superposition, multi-stage accumulation, late period are fixed Three aspects of type " method；1) polynary pool-controlling factors overlay technique is mainly comprised the following steps：1. region is analyzed into Tibetan, 2. oil reservoir fine dissection, 3. oil reservoir Analysis The Main Control Factor, 4. petroleum distribution and accumulating condition, 5. oil-gas migration and accumulation pattern, 6. polynary pool-controlling factors overlapping Favorable Areas is predicted, or Favorable Areas is predicted according only to wherein certain several step；2) oil-control type method is mainly comprised the following steps：According to grinding Study carefully the basin style, tectonic style and deposition characteristicses in area, the Oil-gas Accumulation Types set up in oil-control pattern, labor oil-control pattern And spatial distribution characteristic, Favorable Areas, such as palaeohigh oil-control pattern are predicted according to the oil-gas pool distribution feature in oil-control pattern；3) " key element overlapping, process superposition, multi-stage accumulation, late period sizing " method is mainly comprised the following steps：Key element superposition is a certain Pool-forming time It is favourable into Tibetan area, but the Favorable Areas of early formation will also by the later stage construction Adjustment and reform function influence, only being adjusted The whole part acted on transformation is kicked off into Tibetan area, just can determine that last Favorable Areas；, will according to key element overlapping and process principle of stacking Multi-stage accumulation and late period sizing Favorable Zones are overlapped, and evaluate Favorable Areas.

Quantitative analysis includes Deposits Dynamics method and geologic event/governing factor mathematical model method, wherein, geologic event/ Governing factor mathematical model method is had main steps that according to research area four big Dominated Factors (regional cap rock C, high-quality sedimentary facies D, Gu Long Rise M, hydrocarbon source rock S) with control hide probability and control hide scope between relation, or in Pool-forming time denudation with degrade preceding formation thickness Than the relation between oil-gas pool preservation probability, founding mathematical models hide probability, control according to the model prediction control and hide scope or oil Gas reservoir preserves probability, and then predicts Favorable Areas；Deposits Dynamics method Main Basiss pools' forming dynam- is more than into Tibetan resistance, it is determined that circle Scope and oily scope are closed, and then determines Favorable Areas scope, the dynamic conditions of such as sandstone lens favorable is： After country rock (source rock) enters for hydrocarbon thresholding, its capillary pressure with sand body interface is poor, the generation of hydrocarbon concentration gradient extension The resistance run into is outwards percolated more than water superfluous in sand body with expansive force sum, oil-gas reservoir is formed, is used as Favorable Areas；It is deep The dynamic conditions of basin gas Favorable Areas is：Natural gas expansive force is less than the region of capillary and hydrostatic pressure sum in compact reservoir Be conducive to deep basin gas Enrichment And Reservoiring, the regional extent for meeting above-mentioned dynamic conditions is considered as Favorable Areas.

With the intensification of exploration and development process, certain amount original oil zone enters exploration and development middle and later periods, conventional Favorable Areas Method for optimizing can not meet the accuracy requirement of current exploration and development, thus, need a kind of effective Favorable Areas of determination badly Prediction scheme.

The content of the invention

In order to overcome the deficiencies in the prior art, the present invention provides the single trap level under a variety of geologic(al) factor quantity constraints Favorable Areas method for optimizing.

The Favorable Areas method for optimizing of single trap level under a variety of geologic(al) factor quantity constraints, comprises the following steps：With height Resolution ratio Stratigraphic framework is relies on, sedimentary formation when sedimentation unit level etc. is marked off on longitudinal direction, according to log data, well logging number According to, formation testing data, well log interpretation profit data and geological data, the profit for establishing 5 kinds of two Sandstone Sections splits sub-model, realizes Profit under sedimentation unit chronostratigraphic architecture is split point, develops single sand body level substratum top surface structural map, sedimentary micro plan With oil and water zonation rule, single trap is determined according to channel boundary, tomography, microstructures and sandstone up pinchout line, it is comprehensive Different types of Oil Trap in each single sand body level substratum is evaluated, the Oil Trap in different single sand bodies level substratum is enclosed Close area overlapping and trap thickness add up, with reference to Trap Typesof, reservoir porosity, reservoir buried depth, organic matter type, maturity, 7 Favorable Areas of hydrocarbon intensity and source-reservoir-seal assemblage (trap factor, reservoir key element, hydrocarbon source rock key element and source storage relation), which are evaluated, to be referred to Mark, sets up reservoir forming factor probability and into matching probability dual factors Favorable Areas evaluation model is hidden, preferably goes out Favorable Areas.

It is an advantage of the invention that having taken into full account trap factor, reservoir key element, hydrocarbon source rock key element and source storage relation, draft out The Favorable Areas method for optimizing of single trap under a variety of geologic(al) factor quantity constraints, realizes in single sand body level substratum and contains scraper ring The Favorable Areas closed preferably is studied, and overcomes several oil reservoir factor overlappings in the past, and can not reflect that Oil Trap geology is special in detail The shortcoming levied, enriches the preferred evaluation method of favorable oil/gas target in perfect In Oil Field Exploration And Development, obtains field operations personnel Accreditation.

Brief description of the drawings

When considered in conjunction with the accompanying drawings, by referring to following detailed description, can more completely more fully understand the present invention with And the adjoint advantage of many of which is easily learnt, but accompanying drawing described herein is used for providing a further understanding of the present invention, The part of the present invention is constituted, schematic description and description of the invention is used to explain the present invention, do not constituted to this hair Bright improper restriction, such as figure are wherein：

Fig. 1 is structural representation of the invention；

Fig. 1 is individual well phasor in the northern Fuyu Reservoirs group of Song-liao basin；

Fig. 2 is the northern Fuyu Reservoirs Strata Comparison closing skeleton of Song-liao basin and contrast route map；

Fig. 3 a are the northern Fuyu Reservoirs East and West direction skeleton High-Resolution Sequence Stratigraphic Framework figures of Song-liao basin；

Fig. 3 b are the northern Fuyu Reservoirs north-south skeleton High-Resolution Sequence Stratigraphic Framework figures of Song-liao basin；

Fig. 4 a are the 5th single sand body level Sublayer sedimentary microfacies figures of the northern Fuyu Reservoirs of Song-liao basin；

Fig. 4 b are the 12nd single sand body level Sublayer sedimentary microfacies figures of the northern Fuyu Reservoirs of Song-liao basin；

Fig. 5 a are the 5th single sand body level substratum top surface structural maps of the northern Fuyu Reservoirs of Song-liao basin；

Fig. 5 b are the 12nd single sand body level substratum top surface structural maps of the northern Fuyu Reservoirs of Song-liao basin；

Fig. 6 a are different type Oil Trap flat distribution maps in the northern 5th single sand body level substratum of Song-liao basin；

Fig. 6 b are different type Oil Trap flat distribution maps in the northern 12nd single sand body level substratum of Song-liao basin；

Fig. 7 a are formation testing achievement distribution maps in the 12nd single sand body level substratum of the northern Fuyu Reservoirs of Song-liao basin；

Fig. 7 b are result of log interpretation distribution maps in the 12nd single sand body level substratum of the northern Fuyu Reservoirs of Song-liao basin；

Fig. 8 is Oil Trap area stacking chart in the different single sand body level substratums of the northern Fuyu Reservoirs of Song-liao basin；

Fig. 9 is the cumulative figure of Oil Trap thickness in the different single sand body level substratums of the northern Fuyu Reservoirs of Song-liao basin；

Figure 10 Favorable Areas preferred scheme；

Figure 11 is the northern Fuyu Reservoirs Favorable Areas map of Complex evaluation of Song-liao basin；

Figure 12 flow chart of steps of the present invention；

The present invention is further described with reference to the accompanying drawings and examples.

Embodiment

Obviously, those skilled in the art belong to the guarantor of the present invention based on many modifications and variations that spirit of the invention is done Protect scope.

Embodiment 1：As shown in Figure 1, Figure 2, Fig. 3 a, Fig. 3 b, Fig. 4 a, Fig. 4 b, Fig. 5 a, Fig. 5 b, Fig. 6 a, Fig. 6 b, Fig. 7 a, Fig. 7 b, Shown in Fig. 8, Fig. 9, Figure 10, Figure 11 and Figure 12,

The Favorable Areas method for optimizing of single trap level under a variety of geologic(al) factor quantity constraints, including following four aspect：

1st, single sand body rank high-resolution three-dimension Stratigraphic framework and establishment single sand body Ji Ding circle structural maps are set up.In whole district's model Interior selection standard well is enclosed, in vertical material resource, parallel source direction, high-resolution Stratigraphic framework in research area is set up, by stratum lattice Frame fine degree is divided into single sand body rank, extracts the top circle individual-layer data of each substratum in research area；With reference to 3-D seismics number According to the substratum top surface hierarchy number under the earthquake plane data, layer data and high-resolution chronostratigraphic architecture extracted in body According to establishment substratum top surface structural map；

2nd, formation testing data (or well log interpretation profit data) are split into a point method and is applied to formation testing data and well log interpretation profit Splitting point for data, establishes 5 kinds of formation testing data for closing examination based on 2 single sand bodies and splits sub-model, respectively oil reservoir-oil reservoir, oil reservoir- Water layer, oil reservoir-oil-water-layer, oil-water common-layer-oil-water common-layer, oil-water common-layer-water layer, are realized to well log interpretation profit number in research area Split point according to formation testing data, realize that the formation testing data of the level of the single sand body under high-resolution three-dimension Stratigraphic framework are split point (production capacity)；

3rd, based on single sand body level substratum under high-resolution three-dimension Stratigraphic framework, the top surface construction of joint single sand body level substratum Figure, sedimentary microfacies map and oil and water zonation rule figure, with reference to river course, tomography, microstructures, sandstone up pinchout and Oil Trap Well log interpretation profit data and formation testing data in the individual well block diagram of neighbouring well, delimit the scope of Oil Trap；Evaluate each Oil Trap flat distribution map in single sand body level substratum, Oil Trap area is carried out by the Oil Trap of each single sand body level substratum Superposition, evaluates the Oil Trap area superposition distribution map of reservoir；According to each single sand body under high-resolution three-dimension Stratigraphic framework Level substratum sandstone thickness, the single trap sandstone thickness of each single sand body level substratum is added up, and realizes that different single sand body levels are small Layer oil-bearing sand thickness adds up, and enters row constraint with the Oil Trap area of reservoir, obtains under Oil Trap area control Oil-bearing sand cumulative thickness figure.

4th, the Favorable Areas preferred scheme for the single trap level set up under a variety of geologic(al) factor quantity constraints：Will according to trap Element, reservoir key element, hydrocarbon source rock key element and source storage 4 indexs of relational factors, set up reservoir forming factor probability and into hide matching probability Dual factors Favorable Areas evaluation model, is that Favorable Areas preferably provides foundation；Wherein, trap factor refers to Trap Typesof, and reservoir will Element includes porosity of sandstones and reservoir depth, and hydrocarbon source rock key element includes organic matter type, maturity and hydrocarbon intensity, source storage Relational factors include source-reservoir-seal assemblage.

As shown in figure 12, the Favorable Areas method for optimizing of the single trap level under a variety of geologic(al) factor quantity constraints, including with Lower step：

A, data collection are arranged：Collection research area geologic information, seismic data, well-log information and log data；Wherein, ground Matter data includes geological layering data, rock core and analyzing test data；Seismic data includes 3D seismic data cubes, layer data； Well-log information includes natural gamma, interval transit time, microelectrode, micronormal, the deep lateral and shallow log such as lateral；Log data Including landwaste and log data；

B, high-resolution single sand body level three-dimensional formation screen work foundation：The microelectrode of multiple wells, micro- electricity in research on utilization area The logs such as position, deep lateral, shallow lateral, natural gamma and interval transit time, with flood surface, stable mud stone section, oil shale, coal Rock, calcareous concretion, iron concretion etc. establish research area's skeleton section as distinguishing mark layer, set up single sand body level in research area Three-dimensional formation screen work, sand group or substratum are segmented to single sand body level substratum；

C, single sand body level substratum planar depositions microfacies figure establishment：In step B) in mark off single sand body level substratum in, Planar depositions parfacies type is determined according to single well facies analysis result, and formulates micro-facies pattern, with reference to log and sand Rock thickness spread figure, makes each single sand body level planar depositions microfacies figure；

D, single sand body level substratum top surface structural map establishment：According to the plane data and layer data in 3D seismic volumes, knot Close step B) in high-resolution Stratigraphic framework under each single sand body level substratum top surface individual-layer data, develop each single sand body level substratum Top surface structural map；

The establishment of profit rule distribution map in E, single sand body level substratum：Compiled according to formation testing data and well log interpretation profit data Liquefaction horizontal plane regularity of distribution figure, based on step B) single sand body level substratum under middle high-resolution Stratigraphic framework, create it is a kind of will Formation testing data and well log interpretation profit data, which are split, to be assigned to the formation testing data (or well log interpretation profit data) of single sand body level and splits point just After method, formation testing data and well log interpretation profit data are split point, the oil and water zonation rule figure in different single sand body level substratums is developed；

F, the single trap marked off in single sand body level substratum：Joint step C) in sedimentary microfacies map, D) in top surface Structural map and E) in oil and water zonation rule figure, determined according to channel boundary, tomography, microstructures and sandstone up pinchout line Single trap, evaluates the different types of Oil Trap in each single sand body level substratum successively；

The oil area overlapping and oil-containing thickness of single trap in G, each single sand body substratum are cumulative：Based on step F), will not Oil area superposition and oil-containing thickness with single trap in single sand body level substratum add up；

H, the Favorable Areas splitting scheme for the single trap set up under a variety of geologic(al) factor quantity constraints：Foundation trap factor, Reservoir key element, hydrocarbon source rock key element and source storage 4 indexs of relational factors, set up Favorable Areas preferred reservoir forming factor probability and Cheng Zang Matching probability dual factors Favorable Areas evaluation model, according to comprehensive evaluation index I_CCYSAnd I_CCPPIt is preferred that Favorable Areas.

Set up Favorable Areas splitting scheme：According to trap factor, reservoir key element, hydrocarbon source rock key element and source storage relational factors 4 Index, details are as follows, and trap factor refers to Trap Typesof, and reservoir key element includes reservoir porosity and reservoir buried depth, hydrocarbon source Rock key element includes organic matter type, maturity and hydrocarbon intensity, and source storage relation includes source-reservoir-seal assemblage；Trap Typesof (I_TT) can draw It is divided into anticline, faulted anticline and fault block, the four kinds of traps of construction-lithology and lithology；Porosity of sandstones (%) (I_RP) can be divided into> 20、20-10、10-5、<5 four segments；Reservoir depth (m) (I_RBD) be divided into<1500、1500-2500、2500-3500、 >3500 4 depth segments；Organic matter type (I_OMT) divide I, II₁、II₂, tetra- kinds of organic matter types of III；Organic matter maturation develops Stage (I_M) it is divided into ripe, high ripe, four standard intervals of post-mature and prematurity；Hydrocarbon intensity (I_HGT) be divided into> 2000、2000-1000、1000-500、<500 4 segments；Raw storage lid configuration (I_RCC) can be divided into from being born from storage, in lower life Storage, on give birth to storage and strange land life storage four segments；Depth bounds marks off quality using 4500m as boundary.

I, optimizing evaluation go out Favorable Areas：Joint step G) and H), preferably go out Favorable Areas.

This method is using High Resolution Sequence Stratigraphy to rely on, deposition ground when single sand body level substratum etc. is marked off on longitudinal direction Layer, according to log data, logging data, formation testing data, well log interpretation profit data and geological data, develops single sand body level small Layer top surface structural map, sedimentary micro plan and oil and water zonation rule figure, evaluate different Oil Traps in single sand body level substratum Type, carries out trap area overlapping to the Oil Trap in different single sand bodies level substratum and trap thickness is cumulative, with reference to Favorable Areas Splitting scheme, optimizing evaluation goes out Favorable Areas.

Embodiment 2：As shown in Figure 1, Figure 2, Fig. 3 a, Fig. 3 b, Fig. 4 a, Fig. 4 b, Fig. 5 a, Fig. 5 b, Fig. 6 a, Fig. 6 b, Fig. 7 a, Fig. 7 b, Shown in Fig. 8, Fig. 9, Figure 10, Figure 11 and Figure 12, the Favorable Areas of the single trap level under a variety of geologic(al) factor quantity constraints is preferably square Method, by taking the northern Fuyu Reservoirs of Song-liao basin as an example, using geologic information, seismic data, well-log information and log data as the strong point, Concretely comprise the following steps：

(1) data collection is arranged：Collect geologic information, seismic data, the well-log information in Song-liao basin Fuyu Reservoirs group And log data；Wherein, geologic information includes geological layering data, rock core and analyzing test data；Seismic data is with including 3D Shake data volume, layer data；It is lateral and shallow lateral that well-log information includes natural gamma, interval transit time, microelectrode, micronormal, depth Deng log；Log data includes landwaste and log data；Exposition well logging and analyzing test data in such as table 1, table.

The Song-liao basin Fuyu Reservoirs basic data statistical form of table 1

GR	LLD	AC	DEN	S1(mg/g)	S2(mg/g)	Tmax
							80.9	78	192.5	2.6	3.2	71.8	459
91.3	52.9	200.2	2.6	2.9	70	459
							102.9	33.9	210.2	2.5	0.3	5.6	435
112.7	23.9	217.6	2.5	0.6	2.7	430
							118.4	20.5	221.7	2.5	1.6	26.9	468
119.3	20.3	221.6	2.6	0.9	24.8	468
							114.2	22.2	214.6	2.6	3.9	88.9	463
105.5	25.5	206.3	2.6	1.8	40.3	468
							98.4	29.5	202.8	2.7	0	0.9	441
95.8	33.7	201.2	2.7	0.3	7.5	427
							95.6	36.5	198.9	2.6	1.8	123.4	448
95.1	36.6	199.9	2.6	0	0.2	439
							95.6	33	205.5	2.6	0	2.7	440
99.7	27.4	213.7	2.6	0.2	0.8	349
							107.1	21.7	225.3	2.6	0.5	19.4	452
114.8	17.3	238.1	2.6	0	0.2	422
							120.2	14.4	247.1	2.6	0.2	13.7	437
123.3	13.1	250.8	2.5	0.5	18.8	435
							124.7	12.9	249	2.5	0.2	21.4	428
125	13.4	245.2	2.5	0	0.4	549
							123.7	14.2	241.8	2.5	0.1	0.4	378
121.2	15.2	238.7	2.5	0.1	3.3	434
							119.6	15.9	236.1	2.5	0.1	0.6	434
120.7	16.2	235	2.5	0.1	1.3	417
							123.2	16.1	235.9	2.5	0	0.2	444
125.2	15.6	238.1	2.5	0	0.5	459
							125.6	15	240.3	2.4	0.1	0.1	415
124.6	14.6	241.2	2.4	0.6	6.7	441

(2) foundation of high-resolution single sand body level three-dimensional formation screen work：The microelectrode of multiple wells, micro- electricity in research on utilization area The logs such as position, deep lateral, shallow lateral, natural gamma and interval transit time, with flood surface, stable mud stone section, oil shale, coal Rock, calcareous concretion and iron concretion etc. establish research area's skeleton section as reference lamina, set up single sand body level in research area three-dimensional Stratigraphic framework, sand group or substratum are segmented to single sand body level substratum；Such as Fig. 1, individual well phasor is divided into sedimentation unit level, and in detail It is to develop delta front sub-facies, delta front from top to bottom on shallow water delta facies sedimentary system, longitudinal direction to illustrate the oil reservoir (EN)-distributary plain (WS) transition parfacies and distributary plain parfacies three major types；Wherein delta front sub-facies include FY₁ ¹Outer leading edge And FY₁ ¹-FY₂ ²Interior leading edge, FY₁ ¹Outer leading edge develops thin layer sheet sand, FY₁ ¹-FY₂ ²Interior leading edge develops grayish green mud stone, lake, lake ergosphere Reason, has river course under water；Delta front (EN)-distributary plain (WS) transition parfacies includes FY₃-FY₅ ³Oil reservoir, FY₃-FY₅ ²Oil reservoir Interior northeast is that delta front, the west and south are distributary plain, FY₅ ²-FY₅ ³Unit lake strandline is migrated northeastward by southwest；Shunting Plain parfacies includes FY₆ ¹-FY₁₂ ³(high energy) distributary plain and FY₁₃ ¹-FY₁₆ ³(low energy) distributary plain, in FY₆ ¹-FY₁₂ ³(high energy) Distributary plain developmental stage, FY₆ ¹-FY₁₁ ²Based on deposition period development aubergine mudstone, upward celadon, individual layer are thinned, calcic Group, block stratification；Thin layer sand slightly increases；River course is obvious and vertical with respect to development, and tool monocline, cross-bedding and mud boulder, tool bottom are stagnant Stay deposition, in-weak oxide based on, river overflows and bank and changes its course and have increasing, limit river course by force；FY₁₂ ¹-FY₁₂ ³Deposition period develops river Stream energy is significantly increased, scale increases, vertical and plane cuts the enhancing of erosion ability；FY₁₃ ¹-FY₁₆ ³When (low energy) distributary plain is deposited Phase, river energy is weak, small scale, vertical and plane agensis, in " mud drum sand " type：The bank thin layer sand that overflows is substantially more, celadon mud Rock is developed compared with top；Establish the northern Fuyu Reservoirs Strata Comparison closing skeleton of Song-liao basin and contrast route map (Fig. 2), thing To 4 sections, 4, north-south section, when the logging response character of other wells is obvious in research area, according to reference lamina identification stroke Point, when other layer of log response be not obvious, contrasted and divided with uniform thickness principle；Fig. 3 a are Song-liao basin Fuyu Reservoirs East and West direction skeleton High-resolution Stratigraphic framework figure, Fig. 3 b be Song-liao basin Fuyu Reservoirs north-south skeleton high-resolution Stratigraphic framework figure, Fig. 3 a and The reasonable accuracy of accompanying drawing 3b displaying research inner frame sections, establishes single sand body level three-dimensional formation screen work in research area, after being Continuous research offer single sand body level substratum research defines Space Categories, and there is provided the part single sand body level substratum hierarchy number of follow-up study According to (table 2).

Substratum individual-layer data in the research of table 2 area under single sand body level high-resolution Stratigraphic framework

Layer position	G1	G101	G101-134	G101-144	G102	G103	G104	G105
									P1	1691	1803	1729.2	1727.3	1738.3	1655.3	1698.3	1653.5
P2	1739	1848.1	1778.8	1776.1	1784.4	1702.9	1745	1700.1

P3	1741.7	1852.4	1782	1779.6	1786.9	1706.8	1747.8	1703.7
									P4	1745.5	1857.6	1787.1	1784	1793.3	1711.3	1752.9	1708.4
P5	1695.4	1806.7	1733.9	1731.3	1742.2	1659.6	1702.5	1658.8
									P6	1699.4	1810.7	1738.7	1735.8	1744.8	1663.2	1705.5	1662.1
P7	1703.9	1813.3	1740.2	1739.5	1748.2	1666.7	1708.9	1664.2
									P8	1708.5	1817.8	1745.2	1743.9	1752.7	1672	1712.9	1668.9
P9	1712	1822.9	1750.6	1747.6	1757.5	1675.6	1718	1672.6
									P10	1715	1824.8	1753.3	1750.6	1760.8	1678.4	1720.3	1675.1
P11	1718.1	1828.3	1756.8	1754.1	1763.5	1681.8	1723.7	1679.9
									P12	1722.4	1831.3	1760	1758.4	1767.5	1685.3	1726.7	1682.7
P13	1728.1	1836.2	1767.5	1762.4	1771.8	1691	1731.8	1687.6
									P14	1730.9	1840.9	1771.1	1767.7	1777.1	1695.5	1735.5	1692
P15	1734.8	1843.8	1775.7	1771.4	1780	1699.1	1739.9	1695.5
									P16	1749.4	1860.9	1792.2	1790	1797.4	1717	1757.1	1712.9

(3) establishment of single sand body level substratum inner plane sedimentary microfacies map：The single sand body level marked off in step (2) is small Layer, planar depositions parfacies type is determined according to single well facies analysis result, and makes micro-facies pattern, with reference to log With sandstone thickness spread figure, each single sand body level planar depositions microfacies figure is made；If Fig. 4 a are the northern Fuyu County's oil of Song-liao basin The 5th single sand body level Sublayer sedimentary microfacies figure of layer, Fig. 4 b are that the 12nd single sand body level substratum of the northern Fuyu Reservoirs of Song-liao basin sinks Product microfacies figure.From the 5th single sand body level Sublayer sedimentary microfacies figure and the 12nd single sand body level Sublayer sedimentary microfacies figure, it can be seen that River is integrally to flow to southwestward from northeast, and the 5th single sand body level substratum deposition period, river discharge is smaller, and river course is narrower, Sand body development area is smaller, and the 12nd single sand body level substratum deposition period, and river discharge is larger, and river course is wide, sand body development face Product is big, is developed beneficial to the big Oil Trap of area.

(4) establishment of single sand body level substratum top surface structural map：According to the plane data and layer data in 3D seismic volumes, knot Each single sand body level substratum top surface individual-layer data under the high-resolution Stratigraphic framework in step (2) is closed, each single sand body level is developed small Layer top surface structural map；If accompanying drawing 5a is the 5th single sand body level substratum top surface structural map of the northern Fuyu Reservoirs of Song-liao basin, accompanying drawing 5b For the 12nd single sand body level substratum top surface structural map of the northern Fuyu Reservoirs of Song-liao basin, from the 5th single sand body level substratum top surface structure Figure and the 12nd single sand body level substratum top surface structural map are made, it can be found that research area south development nose structure high point, entirely grinds Study carefully fracture in area extremely to develop, beneficial to the Trap Typesof and microstructures type trap for forming tomography correlation.

(5) single sand body level substratum in profit rule distribution map establishment：According to formation testing data and well log interpretation profit data Profit planar distribution figure is worked out, based on step 2) single sand body level substratum under middle high-resolution Stratigraphic framework, create a kind of Formation testing data and profit interpretation data are split assign to single sand body level split a point method, formation testing data and well log interpretation profit data are split After point, the oil and water zonation rule figure in different single sand body level substratums is developed；If Fig. 6 a are the northern Fuyu Reservoirs of Song-liao basin the The oil and water zonation rule figure of formation testing Interpretation On The Results in 12 single sand body level substratums, Fig. 6 b are the northern Fuyu Reservoirs the 12nd of Song-liao basin The oil and water zonation rule figure that result of log interpretation is explained in individual single sand body level substratum, Fig. 6 a and Fig. 6 b mainly elaborates producing well Oil-producing and production regimen condition, with reference to channel boundary, tomography, sandstone pinch-out boundary, microstructures identification Oil Trap；If Fig. 7 a are pine Different type Oil Trap flat distribution map in the 5th single sand body of distant Basin of Northern level substratum, Fig. 7 b are Song-liao basin the north the Different type Oil Trap flat distribution map in 12 single sand body level substratums, as can be seen from the figure Oil Trap is main by formation testing Achievement and well log interpretation profit data determine fluid properties and oil-water interfaces, are put down from Oil Trap in the 5th single sand body level substratum EDS maps situation can be seen that the center that Oil Trap is mainly distributed on research area, out of the 12nd single sand body level substratum Oil Trap distribution situation can be seen that the southeast that Oil Trap is mainly distributed on research area.

(6) the single trap in single sand body level substratum is marked off：The top in sedimentary microfacies map, (4) in joint step (3) Oil and water zonation rule figure in surface construction figure and (5), according to channel boundary, tomography, microstructures and sandstone up pinchout line Determine single trap, the different types of Oil Trap that overall merit goes out in each single sand body level substratum；

(7) the oil area overlapping and oil-containing thickness of single trap add up in each single sand body substratum：, will based on step (6) The oil area superposition of single trap and oil-containing thickness add up in different single sand body level substratums；If Fig. 8 is that Song-liao basin the north is helped Oil Trap area stacking chart in the different single sand body level substratums of excess oil layer, Fig. 9 is the different single sand of the northern Fuyu Reservoirs of Song-liao basin The cumulative figure of Oil Trap thickness in body level substratum；Trap area is mainly distributed on the centre of research research, and east northeast is presented and arrives The regularity of distribution of Nan Xi trends；The big region of trap thickness is mainly distributed the south in research area；

(8) the Favorable Areas splitting scheme for the single trap set up under a variety of geologic(al) factor quantity constraints：Foundation trap factor, Reservoir key element, hydrocarbon source rock key element and source storage 4 indexs of relational factors, set up Favorable Areas preferred reservoir forming factor probability and Cheng Zang Matching probability dual factors mathematics appraisal, according to comprehensive evaluation index I_CCYSAnd I_CCPPIt is preferred that Favorable Areas.Set up favourable Division Scheme：According to trap factor, reservoir key element, hydrocarbon source rock key element and source storage 4 indexs of relation, details are as follows, trap factor Refer to Trap Typesof, reservoir key element includes reservoir porosity and reservoir buried depth, and hydrocarbon source rock key element includes organic matter type, maturity With hydrocarbon intensity, source storage relation includes source-reservoir-seal assemblage；

Trap Typesof (I_TT) anticline, faulted anticline and fault block, construction four kinds of traps of lithology and lithology can be divided into；Reservoir pore space Spend (%) (I_RP) can be divided into>20、20-10、10-5、<5 four kinds of segments；Reservoir buried depth (m) (I_RBD) be divided into<1500、 1500-2500、2500-3500、>3500 4 depth segments；Organic matter type (I_OMT) divide I, II₁、II₂, the types of III tetra-； The organic matter maturation evolutionary phase (I_M) it is divided into ripe, high ripe, four standard intervals of post-mature and prematurity；Hydrocarbon intensity (I_HGT) be divided into>2000、2000-1000、1000-500、<500 4 evaluation indexes；Raw storage lid configuration (I_RCC) can be divided into From be born from storage, down mountainalgorithm, on give birth to storage and strange land life storage four segments.Depth 4500m is effective mining depth boundary line (table 3)。

The Favorable Areas splitting scheme index of table 3

Wherein, reservoir forming factor probability includes trap factor, reservoir key element and hydrocarbon source rock key element, and its judgement schematics is as follows：

I_CCYS=I_TT×f(I_RP,I_RBD)×f(I_OMT,I_M,I_HGT) (22)

Include source storage relational factors into matching probability is hidden, its judgement schematics is as follows：

I_CCPP=I_RCC (25)

In formula：I_CCYSBetween-reservoir forming factor probability, 0-1；I_TTBetween-evaluation of trap index, 0-1；f(I_RP, I_RBD)— Evaluating reservoir index；f(I_OMT, I_M, I_HGT)-Evaluation of source rocks index；I_CCPP- into hiding matching probability, between 0-1；I_RCC- raw Storage lid combination configuration relation evaluation number, 0-1.

Using reservoir forming factor probability and into matching probability dual factors quantitative assessment Favorable Areas is hidden, its splitting scheme is shown in accompanying drawing 10, its data illustrated in table 4.

The overall merit statistical form of more than the 4 kinds of single trap of geologic(al) factor quantitative assessment of table

(9) parameters such as relational factors are stored up and (are shown in Table according to research area's trap factor, reservoir key element, hydrocarbon source rock key element, source 5), it is determined that studying the reservoir forming factor probability of area's different parts, into matching probability is hidden, Favorable Areas map of Complex evaluation is marked off (as schemed 11), realization area Favorable Areas is preferred.

The Song-liao basin Fuyu Reservoirs Favorable Areas assessment parameter table of table 5

Embodiment 3：As shown in Figure 1, Figure 2, Fig. 3 a, Fig. 3 b, Fig. 4 a, Fig. 4 b, Fig. 5 a, Fig. 5 b, Fig. 6 a, Fig. 6 b, Fig. 7 a, Fig. 7 b, Shown in Fig. 8, Fig. 9, Figure 10, Figure 11 and Figure 12, the Favorable Areas of the single trap level under a variety of geologic(al) factor quantity constraints is preferably square Method, comprises the following steps：

1), data collection is arranged：Collection research area geologic information, seismic data, well-log information and log data；Wherein, Geologic information includes geological layering data, rock core and analysis test；Seismic data includes 3D seismic data cubes, layer data；Survey Well data includes natural gamma, interval transit time, microelectrode, micronormal, the deep lateral and shallow log such as lateral；Log data bag Include landwaste and log data；

2), the foundation of high-resolution single sand body level three-dimensional formation screen work：The microelectrode of multiple wells, micro- electricity in research on utilization area The logs such as position, deep lateral, shallow lateral, natural gamma and interval transit time, with flood surface, stable mud stone section, oil shale, coal Rock, calcareous concretion, iron concretion etc. establish research area's skeleton section as distinguishing mark layer, set up single sand body level in research area Three-dimensional formation screen work, sand group or substratum are segmented to single sand body level substratum；

3), the establishment of single sand body level substratum planar depositions microfacies figure：In step 2) in mark off single sand body level substratum in, Planar depositions parfacies type is determined according to single well facies analysis result, and formulates micro-facies pattern, with reference to log and sand Rock thickness spread figure, makes each single sand body level planar depositions microfacies figure；

4), the establishment of single sand body level substratum top surface structural map：According to the plane data and layer data in 3D seismic volumes, knot Close step 2) in high-resolution Stratigraphic framework under each single sand body level substratum top surface individual-layer data, develop each single sand body level substratum Top surface structural map；

5), single sand body level substratum in profit rule distribution map establishment：According to formation testing data and well log interpretation profit data Profit planar distribution figure is worked out, based on step 2) single sand body level substratum under middle high-resolution Stratigraphic framework, create a kind of Formation testing data and well log interpretation profit data are split and assigns to the formation testing data of single sand body level and splits a point method, formation testing data and well logging solution Release after profit data split point, develop the oil and water zonation rule figure in different single sand body level substratums；

6) the single trap in single sand body level substratum, is marked off：Joint step 3) in sedimentary microfacies map, 4) in top surface Structural map and 5) in oil and water zonation rule figure, determined according to channel boundary, tomography, microstructures and sandstone up pinchout line Single trap, evaluates the different types of Oil Trap in each single sand body level substratum successively；

7), the oil area overlapping and oil-containing thickness of single trap are cumulative in each single sand body substratum：Based on step 6), will not Oil area superposition and oil-containing thickness with single trap in single sand body level substratum add up；

8) the Favorable Areas splitting scheme for the single trap, set up under a variety of geologic(al) factor quantity constraints：Foundation trap factor, Reservoir key element, hydrocarbon source rock key element and source storage 4 indexs of relational factors, set up Favorable Areas preferred reservoir forming factor probability and Cheng Zang Matching probability dual factors Favorable Areas evaluation model, according to comprehensive evaluation index I_CCYSAnd I_CCPPIt is preferred that Favorable Areas.Set up favourable zoning Offshoot program：According to trap factor, reservoir key element, hydrocarbon source rock key element and source storage 4 indexs of relational factors, details are as follows, circle Close key element and refer to Trap Typesof, reservoir key element includes reservoir porosity and reservoir buried depth, hydrocarbon source rock key element include organic matter type, Maturity and hydrocarbon intensity, source storage relation include source-reservoir-seal assemblage；Trap Typesof (I_TT) anticline, faulted anticline can be divided into and broken Block, the four kinds of traps of construction-lithology and lithology；Porosity of sandstones (%) (I_RP) can be divided into>20、20-10、10-5、<5 four Segment；Reservoir depth (m) (I_RBD) be divided into<1500、1500-2500、2500-3500、>3500 4 depth segments；It is organic Matter type (I_OMT) divide I, II₁、II₂, tetra- kinds of organic matter types of III；The organic matter maturation evolutionary phase (I_M) it is divided into ripe, height Ripe, four standard intervals of post-mature and prematurity；Hydrocarbon intensity (I_HGT) be divided into>2000、2000-1000、1000-500、< 500 4 segments；Raw storage lid configuration (I_RCC) can be divided into from be born from storage, down mountainalgorithm, on give birth to storage and strange land life storage four Segment；Depth bounds marks off quality using 4500m as boundary.

9), optimizing evaluation goes out Favorable Areas：Joint step 7) and step 8), preferably go out Favorable Areas.

This method is divided into single sand body level substratum, according to well logging using high-resolution three-dimension Stratigraphic framework to rely on longitudinal direction Data, logging data, formation testing data, well log interpretation profit data and geological data, develop each single sand body level substratum top surface structure Figure, sedimentary micro plan and oil and water zonation rule figure are made, the different type Oil Trap in single sand body level substratum is evaluated, it is right Oil Trap in each single sand body level substratum carries out trap area overlapping and trap thickness adds up, with reference to favourable Division scheme, Optimizing evaluation goes out Favorable Areas.

The step 4) in, the establishment of single sand body level substratum top surface structural map is specific as follows：

Several reference laminas are determined in the middle of target zone top circle, bottom circle reference lamina, target zone, according to cycle of sedimentation feature, are known Do not go out the small number of layers of single sand body level that destination layer position should be marked off, in whole district's selection standard well, in vertical material resource, parallel Source direction, sets up skeleton section, based on this, realizes that high-resolution three-dimension Stratigraphic framework is divided in full work area, is divided into single sand body The precision of level substratum, extracts the top circle individual-layer data of each single sand body level substratum in research area, and the top surface for setting up substratum buries figure；

Single sand body level substratum top surface structural map is based primarily upon the earthquake aspect number extracted inside 3-d seismic data set According to the single sand body level substratum top surface individual-layer data joint establishment in, layer data and high score rate chronostratigraphic architecture；Wherein, break Layer data is to be based on 3D seismic data data, explains in detail tomography distribution situation, identifies distribution of the fracture in substratum top surface Situation, works out fault plane distribution map；The present invention is with the 5th single sand body level substratum and the top circle techonosphere of the 12nd single sand body level substratum Exemplified by.

The step 5) in, formation testing data and profit explain that data are split point, determine oil and water zonation rule, as follows

Formation testing data are split into point method and are applied to splitting point for formation testing data, it is specific as follows

For same well：

F=H × a (2)

Wherein, Q_{Yield in unit interval}It is the individual well daily output；F is the area around subterranean well bore control；A is in same well It is fixed；H is sandstone thickness；μ is the viscosity of liquid, and the viscosity of adjacent sandstone is equal；R is point of rock sample in the plane Cloth scope, neighboring reservoirs are set to equal；(p₁-p₂) be liquid by the pressure difference before and after rock, neighboring reservoirs pressure difference is equal；K is rock The permeability of stone.

Well log interpretation profit data and formation testing data split point, single sand under high-resolution three-dimension Stratigraphic framework is realized The formation testing data of body level substratum are split point (production capacity).Assuming that individual well closes 2 Sandstone Sections of examination.

Mainly setting up formation testing data in 5 splits sub-model, respectively oil reservoir-oil reservoir, oil reservoir-water layer, oil reservoir-oil-water-layer, oil Same layer-the oil-water common-layer of water, oil-water common-layer-water layer；

It is as follows that formation testing data split point principle：

Q_{Unit day production capacity}=Q_{Unit day production capacity 1}+Q_{Unit day production capacity 2} (3)

In formula：Q_{Unit day production capacity}Refer to that two Sandstone Sections close examination daily oil production；Q_{Unit day production capacity 1}Refer to the individual well daily output of Sandstone Section 1； Q_{Unit day production capacity 2}Refer to the individual well daily output of Sandstone Section 2；K₁It is the permeability of sand body section 1；K₂Refer to the permeability of Sandstone Section 2；P₁Refer to The strata pressure of Sandstone Section 1；P₂Refer to the strata pressure of Sandstone Section 2；H₁It is the thickness of Sandstone Section 1；H₂It is the thickness of Sandstone Section 2； A is constant；U refers to the viscosity of oil；R refers to wellbore fracture radius.

Five kinds of schemes are specifically divided, it is specific as follows

Scheme one：It is as follows that oil reservoir-reservoir model splits point formula：

In formula：Q_{Unit day production capacity}Refer to that two Sandstone Sections close examination daily oil production；Q_{Unit day production capacity 1}Refer to the individual well daily output of Sandstone Section 1； Q_{Unit day production capacity 2}Refer to the individual well daily output of Sandstone Section 2；K₁It is the permeability of sand body section 1；K₂Refer to the permeability of Sandstone Section 2；H₁It is sand The thickness of rock section 1；H₂It is the thickness of Sandstone Section 2；

Scheme two：Oil reservoir-water layer model splits point formula is as follows：

Q_{Individual well day production capacity 1}=Q_{Individual well day production capacity} (8)

Q_{Individual well day production capacity 2}=Q_{Individual well produces water daily} (9)

In formula：Q_{Unit day production capacity 1}Refer to the individual well daily oil production of Sandstone Section 1；Q_{Unit day production capacity 2}Refer to the individual well water yield per day of Sandstone Section 2；

Scheme three：Oil reservoir-oil-water common-layer model splits point formula is as follows：

Q_{Individual well produces water 1 daily}=0 (11)

Q_{Individual well produces water 2 daily}=Q_{Individual well produces water daily} (13)

In formula：Q_{Unit day production capacity 1}Refer to the individual well daily oil production of Sandstone Section 1；Q_{Unit produces water 1 daily}Refer to the individual well water yield per day of Sandstone Section 1； Q_{Unit day production capacity 2}Refer to the individual well daily oil production of Sandstone Section 2；Q_{Unit produces water 2 daily}Refer to the individual well water yield per day of Sandstone Section 2；K₁It is oozing for sand body section 1 Saturating rate；K₂Refer to the permeability of Sandstone Section 2；H₁It is the thickness of Sandstone Section 1；H₂It is the thickness of Sandstone Section 2；

Scheme four：Oil-water common-layer-oil-water common-layer model splits point formula is as follows：

In formula：Q_{Unit day production capacity 1}Refer to the individual well daily oil production of Sandstone Section 1；Q_{Unit produces water 1 daily}Refer to the individual well water yield per day of Sandstone Section 1； Q_{Unit day production capacity 2}Refer to the individual well daily oil production of Sandstone Section 2；Q_{Unit produces water 2 daily}Refer to the individual well water yield per day of Sandstone Section 2；K₁It is oozing for sand body section 1 Saturating rate；K₂Refer to the permeability of Sandstone Section 2；H₁It is the thickness of Sandstone Section 1；H₂It is the thickness of Sandstone Section 2；

Scheme five：Oil-water common-layer-water layer model splits point formula is as follows：

Q_{Individual well day production capacity 1}=Q_{Individual well day production capacity} (18)

Q_{Individual well day production capacity 2}=0 (20)

In formula：Q_{Unit day production capacity 1}Refer to the individual well daily oil production of Sandstone Section 1；Q_{Unit produces water 1 daily}Refer to the individual well water yield per day of Sandstone Section 1； Q_{Unit day production capacity 2}Refer to the individual well daily oil production of Sandstone Section 2；Q_{Unit produces water 2 daily}Refer to the individual well water yield per day of Sandstone Section 2；K₁It is oozing for sand body section 1 Saturating rate；K₂Refer to the permeability of Sandstone Section 2；H₁It is the thickness of Sandstone Section 1；H₂It is the thickness of Sandstone Section 2；

The step 6) in, with reference to single sand body level substratum top surface structural map, sedimentary micro plan and oil and water zonation rule Figure, establishes Oil Trap in single sand body level substratum, as follows

Joint step 3) in sedimentary microfacies map, 4) in top surface structural map and 5) in oil and water zonation rule figure, foundation Channel boundary, tomography, microstructures and sandstone up pinchout line determine single trap, and each single sand body level substratum is evaluated successively Interior different types of Oil Trap；

Profit rule distribution (well log interpretation distribution map and formation testing achievement distribution map) plan is mainly used to determine oil-gas reservoir Position and determination oils water boundary；Sedimentary microfacies map is mainly used to determine sandstone reservoir type and reservoir boundaries (plane distribution model Enclose)；Structural map is to determine Oil-gas Accumulation Types, such as anticline, faulted anticline and fault block (disconnected nose oil-gas reservoir or fault block oil and gas pool), construction Lithology (tomography-lithology oil gas) and lithology (sandstone up pinchout), can mark off trap area, closure height, trap maximum has Imitate space；Joint profit rule distribution (well log interpretation distribution map and formation testing achievement distribution map), sedimentary microfacies map and structural map, really Determine the border of Oil Trap.

The step 7), the superposition of Oil Trap area and oil-containing thickness in different single sand bodies level substratums add up, it is specific in Hold as follows

According to the control of high-resolution three-dimension Stratigraphic framework, the single sand body under the Stratigraphic framework control of establishment high-resolution three-dimension The sandstone thickness of level substratum, all sandstone thickness are added up, and realize that the Oil Trap thickness of different single sand body level substratums tires out Plus, the Oil Trap area after being superimposed using Oil Trap is controlled, and obtains the oil-bearing sand under Oil Trap area control Cumulative thickness figure；

Based on the Oil Trap flat distribution map in single sand body level substratum, the Oil Trap of each single sand body level substratum is carried out Oil Trap area is superimposed, and develops the Oil Trap area superposition distribution map of reservoir.

The step 8) in, relational factors are stored up with reference to according to trap factor, reservoir key element, hydrocarbon source rock key element and source, are set up The preferred reservoir forming factor probability in Favorable Areas and into matching probability dual factors Favorable Areas evaluation model is hidden, according to comprehensive evaluation index I_CCYSAnd I_CCPPIt is preferred that Favorable Areas, as follows

Set up Favorable Areas splitting scheme：According to trap factor, reservoir key element, hydrocarbon source rock key element and source storage 4 indexs of relation, Details are as follows, and trap factor refers to Trap Typesof, and reservoir key element includes reservoir porosity and reservoir buried depth, hydrocarbon source rock key element Including organic matter type, maturity and hydrocarbon intensity, source storage relation includes source-reservoir-seal assemblage；

The Favorable Areas splitting scheme index of table 6

Trap Typesof (I_TT) anticline, faulted anticline and fault block, construction four kinds of traps of lithology and lithology can be divided into；Reservoir pore space Spend (%) (I_RP) can be divided into>20、20-10、10-5、<5 four kinds of segments；Reservoir buried depth (m) (I_RBD) be divided into<1500、 1500-2500、2500-3500、>3500 4 depth segments；Organic matter type (I_OMT) divide I, II₁、II₂, the types of III tetra-； The organic matter maturation evolutionary phase (I_M) it is divided into ripe, high ripe, four standard intervals of post-mature and prematurity；Hydrocarbon intensity (I_HGT) be divided into>2000、2000-1000、1000-500、<500 4 evaluation indexes；Raw storage lid configuration (I_RCC) can be divided into From be born from storage, down mountainalgorithm, on give birth to storage and strange land life storage four segments.Depth bounds 4500m is effective mining depth circle Line.

Wherein, reservoir forming factor probability includes trap factor, reservoir key element and hydrocarbon source rock key element, and its judgement schematics is as follows：

I_CCYS=I_TT×f(I_RP,I_RBD)×f(I_OMT,I_M,I_HGT) (22)

Include source storage relational factors into matching probability is hidden, its judgement schematics is as follows：

I_CCPP=I_RCC (25)

In formula：I_CCYSBetween-reservoir forming factor probability, 0-1；I_TTBetween-evaluation of trap index, 0-1；f(I_RP, I_RBD)— Evaluating reservoir index；f(I_OMT, I_M, I_HGT)-Evaluation of source rocks index；I_CCPP- into hiding matching probability, between 0-1；I_RCC- raw Storage lid combination configuration relation evaluation number, 0-1.Quantitative assessment is evaluated using reservoir forming factor probability and into matching probability dual factors are hidden Favorable Areas, its splitting scheme is shown in accompanying drawing 10, its data illustrated in table 4.

The overall merit statistical form of more than the 4 kinds of single trap of geologic(al) factor quantitative assessment of table

The Favorable Areas method for optimizing of single trap level under a variety of geologic(al) factor quantity constraints, it comprises the following steps：With High-resolution three-dimension Stratigraphic framework is that single sand body level substratum chronostratigraphic architecture is divided on support, longitudinal direction, foundation log data, Logging data, formation testing data, well log interpretation profit data and geological data, develop each single sand body level substratum top surface structural map, Sedimentary micro plan and oil and water zonation rule figure, it is true according to channel boundary, tomography, microstructures and sandstone up pinchout line The trap of order one, the Oil Trap that overall merit goes out in each single sand body level substratum, to containing scraper ring in different single sand bodies level substratum Close progress trap area overlapping and trap thickness adds up, relation is stored up with reference to trap factor, reservoir key element, hydrocarbon source rock key element and source 4 indexs of key element, set up the preferred reservoir forming factor probability in Favorable Areas and into hiding matching probability dual factors Favorable Areas evaluation model, root According to comprehensive evaluation index I_CCYSAnd I_CCPPIt is preferred that Favorable Areas.

This method has taken into full account trap factor, reservoir key element, hydrocarbon source rock key element and source storage relation, and plan is defined a variety ofly The Favorable Areas method for optimizing of single trap under quality factor quantity constraints, realize single sand body level substratum Oil Trap it is favourable Area preferably, overcomes several oil reservoir factor overlappings in the past, and can not reflect the shortcoming of Oil Trap geologic feature in detail, enriches The preferred evaluation method of favorable oil/gas target in perfect In Oil Field Exploration And Development, this method is in Daqing oil field, Jilin Oil Field Popularization and application are carried out, the accreditation of field operations personnel is obtained.

As described above, being explained to embodiments of the invention, as long as but essentially without this hair of disengaging Bright inventive point and effect can have many deformations, and this will be readily apparent to persons skilled in the art.Therefore, this The variation of sample is also integrally incorporated within protection scope of the present invention.

Claims (7)

1. the Favorable Areas method for optimizing of the single trap level under many kinds of geologic(al) factor quantity constraints, it is characterised in that including following step Suddenly：Using high-resolution chronostratigraphic architecture to rely on, sedimentary formation when sedimentation unit level etc. is marked off on longitudinal direction, according to well logging number According to, logging data, formation testing data, well log interpretation profit data and geological data, the profit for establishing 5 kinds of two Sandstone Sections splits point Model, realizes that the profit under high-resolution chronostratigraphic architecture is split point, develop single sand body level substratum top surface structural map, deposit it is micro- Phase-plane diagram and oil and water zonation rule plan, are determined according to channel boundary, tomography, microstructures and sandstone up pinchout line Single Oil Trap, overall merit goes out different types of single Oil Trap in each single sand body level substratum, to different single sand bodies level Single Oil Trap in substratum carries out Oil Trap area overlapping and Oil Trap thickness adds up, and with reference to Trap Typesof, preserves Layer porosity, reservoir depth, organic matter type, maturity, 7 Favorable Areas evaluation indexes of hydrocarbon intensity and source-reservoir-seal assemblage,

Trap Typesof I_TTIt is divided into anticline, faulted anticline and fault block, the four kinds of traps of construction-lithology and lithology；

Porosity of sandstones I_RPIt is divided into>20%th ,≤20-≤10%, ﹤ 10-≤5%,<5% 4 segment；

Reservoir depth I_RBDIt is divided into<1500m ,≤1500-≤2500m, ﹥ 2500-≤3500m,>Tetra- depth segments of 3500m；

Organic matter type I_OMTDivide I, II₁、II₂, tetra- kinds of organic matter types of III；

Maturity I_MIt is divided into ripe, high ripe, four standard intervals of post-mature and prematurity；

Hydrocarbon intensity I_HGTIt is divided into>2000th ,≤2000-≤1000, ﹤ 1000-≤500,<500 4 segments；

Source-reservoir-seal assemblage I_RCCBe divided into from be born from storage, down mountainalgorithm, on give birth to storage and strange land life storage four segments；

Set up reservoir forming factor probability and into matching probability dual factors Favorable Areas evaluation model is hidden, preferably go out Favorable Areas.

2. the Favorable Areas method for optimizing of the single trap level under a variety of geologic(al) factor quantity constraints as claimed in claim 1, its It is characterised by following steps：

Step 1), data collection arrange：Collection research area geologic information, seismic data, well-log information and log data；Wherein, Geologic information includes geological layering data, rock core and analyzing test data；Seismic data refers to 3D seismic data cubes；Well-log information Including natural gamma, interval transit time, microelectrode, micronormal, deep lateral and shallow lateral 6 kinds of logs；Log data includes rock Bits data；

Step 2), the foundation of high-resolution chronostratigraphic architecture：The microelectrode of multiple wells, micronormal, deep side in research on utilization area To, shallow lateral, 6 kinds of logs of natural gamma and interval transit time, with flood surface, stable mud stone section, oil shale, coal petrography, calcareous Tuberculosis and iron concretion establish research area's skeleton section as distinguishing mark layer, stratum when setting up high-resolution etc. in research area Screen work, sand group or substratum are segmented to single sand body level substratum；

Step 3), single sand body level Sublayer sedimentary microfacies plan establishment：In step 2) in mark off single sand body level substratum in, Planar depositions parfacies type is determined according to single well facies analysis result, and formulates micro-facies pattern, with reference to log and sand Rock thickness spread figure, makes each single sand body level Sublayer sedimentary microfacies plan；

Step 4), single sand body level substratum top surface structural map establishment：According to the plane data and tomography number in 3D seismic data cubes According to reference to step 2) in high-resolution chronostratigraphic architecture under each single sand body level substratum top surface individual-layer data, develop each list Sand body level substratum top surface structural map；

Step 5), single sand body level substratum in oil and water zonation rule plan establishment：According to formation testing data and well log interpretation profit Data organization oil and water zonation rule plan, based on step 2) single sand body level substratum under middle high-resolution chronostratigraphic architecture, A kind of split formation testing data and well log interpretation profit data is created to assign to single sand body level substratum and split a point method, formation testing data and survey After well explains that profit data are split point, the oil and water zonation rule plan in different single sand body grade substratums is developed；

Step 6), mark off single sand body level substratum in single Oil Trap：Joint step 3) in sedimentary micro plan, 4) In top surface structural map and 5) in oil and water zonation rule plan, according on channel boundary, tomography, microstructures and sandstone The pinch-out boundary that inclines determines single Oil Trap, and the different types of single Oil Trap in each single sand body level substratum is evaluated successively；

Step 7), the Oil Trap area overlapping and Oil Trap thickness of single Oil Trap are cumulative in each single sand body level substratum： Based on step 6), the Oil Trap area of single Oil Trap in different single sand bodies level substratum is overlapped and Oil Trap thickness tires out Plus；

Step 8), the Favorable Areas splitting scheme of single Oil Trap set up under a variety of geologic(al) factor quantity constraints：According to trap Key element, reservoir key element, hydrocarbon source rock key element and source storage 4 indexs of relational factors, set up the preferred reservoir forming factor I in Favorable Areas_CCYS Probability and into hide match I_CCPPProbability dual factors Favorable Areas evaluation model, according to comprehensive evaluation index reservoir forming factor I_CCYSProbability and I is matched into hiding_CCPPThe preferred Favorable Areas of probability；Set up Favorable Areas splitting scheme：According to trap factor, reservoir key element, hydrocarbon source rock Key element and source storage 4 indexs of relation, details are as follows, and trap factor refers to Trap Typesof, and reservoir key element includes reservoir Porosity and reservoir depth, hydrocarbon source rock key element include organic matter type, maturity and hydrocarbon intensity, and source storage relation includes raw store up Lid combination；Trap Typesof I_TTAnticline, faulted anticline and fault block, the four kinds of traps of construction-lithology and lithology can be divided into；

Porosity of sandstones I_RPIt can be divided into>20%th ,≤20-≤10%, ﹤ 10-≤5%,<5% 4 segment；

Reservoir depth I_RBDIt is divided into<1500m ,≤1500-≤2500m, ﹥ 2500-≤3500m,>Tetra- depth segments of 3500m；

Organic matter type I_OMTDivide I, II₁、II₂, tetra- kinds of organic matter types of III；

Maturity I_MIt is divided into ripe, high ripe, four standard intervals of post-mature and prematurity；

Hydrocarbon intensity I_HGTIt is divided into>2000th ,≤2000-≤1000, ﹤ 1000-≤500,<500 4 segments；

Source-reservoir-seal assemblage I_RCCCan be divided into from be born from storage, down mountainalgorithm, on give birth to storage and strange land life storage four segments；Depth Scope marks off quality using 4500m as boundary；

Step 9), optimizing evaluation go out Favorable Areas：Joint step 7) and step 8), preferably go out Favorable Areas；

Using high-resolution chronostratigraphic architecture to rely on, single sand body level substratum is divided on longitudinal direction, according to log data, well logging number According to, formation testing data, well log interpretation profit data and geological data, develop each single sand body level substratum top surface structural map, deposit it is micro- Phase-plane diagram and oil and water zonation rule plan, evaluate the single Oil Trap of different type in single sand body level substratum, to each Single Oil Trap in single sand body level substratum carries out Oil Trap area overlapping and Oil Trap thickness adds up, with reference to Favorable Areas Splitting scheme, optimizing evaluation goes out Favorable Areas.

3. the Favorable Areas method for optimizing of the single trap level under a variety of geologic(al) factor quantity constraints as claimed in claim 2, its It is characterised by：The step 4) in, the establishment of single sand body level substratum top surface structural map is specific as follows：

Destination layer position top surface, bottom circle reference lamina, destination layer determines several reference laminas in the middle of position, according to cycle of sedimentation feature, knows Do not go out the small number of layers of single sand body level that destination layer position should be marked off, in research area's selection standard well, in vertical material resource, parallel Source direction, sets up skeleton section, based on this, realizes that high-resolution chronostratigraphic architecture is divided in research area, is divided into single sand The precision of body level substratum, extracts the top surface individual-layer data of each single sand body level substratum in research area, sets up single sand body level substratum Top surface buries figure；

Single sand body level substratum top surface structural map is based primarily upon plane data, the layer data extracted inside 3D seismic data cubes With the single sand body level substratum top surface individual-layer data joint establishment in high score rate chronostratigraphic architecture；Wherein, layer data is base In 3D seismic data cubes, tomography distribution situation is explained in detail, distribution situation of the tomography in single sand body level substratum top surface is identified, compiles Fault plane distribution map processed.

4. the Favorable Areas method for optimizing of the single trap level under a variety of geologic(al) factor quantity constraints as claimed in claim 3, its It is characterised by：The step 5) in, after formation testing data and well log interpretation profit data are split point, oil and water zonation rule is determined, it is as follows：

Formation testing data are split into point method and are applied to splitting point for formation testing data, it is specific as follows

For same well：

F=H × a (2)

Wherein, Q_{Individual well day production capacity}It is the individual well daily output；F is the area around subterranean well bore control；A is constant, and H is sandstone thickness；U is The viscosity of liquid, the viscosity of adjacent sandstone is equal；R is the distribution of rock sample in the plane, refers to wellbore fracture radius, Adjacent reservoirs are set to equal；

p₁-p₂Be liquid by the pressure difference before and after rock, adjacent reservoirs pressure difference is equal；K is the permeability of rock；

Formation testing data are carried out to split point, realize that the formation testing data of the single sand body under high-resolution chronostratigraphic architecture grade substratum are split Point；Assuming that research area's individual well closes 2 Sandstone Sections of examination, the rest may be inferred or the Sandstone Section more than 2 closes examination data；

Establish 5 kinds of 2 Sandstone Section profits and split sub-model, respectively oil reservoir-oil reservoir, oil reservoir-water layer, oil reservoir-oil-water common-layer, oil Same layer-the oil-water common-layer of water, oil-water common-layer-water layer；

It is as follows that formation testing data split point principle：

Q_{Individual well day production capacity}=Q_{Individual well day production capacity 1}+Q_{Individual well day production capacity 2} (3)

In formula：Q_{Individual well day production capacity}Refer to that two Sandstone Sections close examination daily oil production；Q_{Individual well day production capacity 1}Refer to the individual well daily oil production of Sandstone Section 1； Q_{Individual well day production capacity 2}Refer to the individual well daily oil production of Sandstone Section 2；K₁It is the permeability of sand body section 1；K₂Refer to the permeability of Sandstone Section 2；p₁It is Refer to the strata pressure of Sandstone Section 1；p₂Refer to the strata pressure of Sandstone Section 2；H₁It is the thickness of Sandstone Section 1；H₂It is the thickness of Sandstone Section 2 Degree；A is constant；U refers to the viscosity of liquid；R is the distribution of rock sample in the plane, refers to wellbore fracture radius, adjacent storage Collection layer is set to equal；

Five kinds of schemes are specifically divided, it is specific as follows：

Scheme one：It is as follows that oil reservoir-reservoir model splits point formula：

In formula：Q_{Individual well day production capacity}Refer to that two Sandstone Sections close examination daily oil production；Q_{Individual well day production capacity 1}Refer to the individual well daily oil production of Sandstone Section 1； Q_{Individual well day production capacity 2}Refer to the individual well daily oil production of Sandstone Section 2；K₁It is the permeability of sand body section 1；K₂Refer to the permeability of Sandstone Section 2；H₁It is The thickness of Sandstone Section 1；H₂It is the thickness of Sandstone Section 2；

Scheme two：Oil reservoir-water layer model splits point formula is as follows：

Q_{Individual well day production capacity 1}=Q_{Individual well day production capacity} (8)

Q_{Individual well day production capacity 2}=0 (9)

In formula：Q_{Individual well day production capacity}Refer to that two Sandstone Sections close examination daily oil production；Q_{Individual well day production capacity 1}Refer to the individual well daily oil production of Sandstone Section 1； Q_{Individual well day production capacity 2}Refer to the individual well daily oil production of Sandstone Section 2；

Scheme three：Oil reservoir-oil-water common-layer model splits point formula is as follows：

Q_{Individual well produces water 1 daily}=0 (11)

Q_{Individual well produces water 2 daily}=Q_{Individual well produces water daily} (13)

In formula：Q_{Individual well day production capacity}Refer to that two Sandstone Sections close examination daily oil production；Q_{Individual well day production capacity 1}Refer to the individual well daily oil production of Sandstone Section 1； Q_{Individual well produces water 1 daily}Refer to the individual well water yield per day of Sandstone Section 1；Q_{Individual well day production capacity 2}Refer to the individual well daily oil production of Sandstone Section 2；Q_{Individual well produces water 2 daily}Refer to sandstone 2 individual well water yield per day of section；Q_{Individual well produces water daily}Refer to two Sandstone Section individual well water yield per day；K₁It is the permeability of sand body section 1；K₂Refer to sandstone The permeability of section 2；H₁It is the thickness of Sandstone Section 1；H₂It is the thickness of Sandstone Section 2；

Scheme four：Oil-water common-layer-oil-water common-layer model splits point formula is as follows：

In formula：Q_{Individual well day production capacity}Refer to that two Sandstone Sections close examination daily oil production；Q_{Individual well day production capacity 1}Refer to the individual well daily oil production of Sandstone Section 1； Q_{Individual well produces water 1 daily}Refer to the individual well water yield per day of Sandstone Section 1；Q_{Individual well day production capacity 2}Refer to the individual well daily oil production of Sandstone Section 2；Q_{Individual well produces water 2 daily}Refer to sandstone 2 individual well water yield per day of section；K₁It is the permeability of sand body section 1；Q_{Individual well produces water daily}Refer to two Sandstone Section individual well water yield per day；K₂Refer to sandstone The permeability of section 2；H₁It is the thickness of Sandstone Section 1；H₂It is the thickness of Sandstone Section 2；

Scheme five：Oil-water common-layer-water layer model splits point formula is as follows：

Q_{Individual well day production capacity 1}=Q_{Individual well day production capacity} (18)

Q_{Individual well day production capacity 2}=0 (20)

In formula：Q_{Individual well day production capacity}Refer to that two Sandstone Sections close examination daily oil production；Q_{Individual well day production capacity 1}Refer to the individual well daily oil production of Sandstone Section 1； Q_{Individual well produces water 1 daily}Refer to the individual well water yield per day of Sandstone Section 1；Q_{Individual well day production capacity 2}Refer to the individual well daily oil production of Sandstone Section 2；Q_{Individual well produces water 2 daily}Refer to sandstone 2 individual well water yield per day of section；Q_{Individual well produces water daily}Refer to two Sandstone Section individual well water yield per day；K₁It is the permeability of sand body section 1；K₂Refer to sandstone The permeability of section 2；H₁It is the thickness of Sandstone Section 1；H₂It is the thickness of Sandstone Section 2.

5. the Favorable Areas method for optimizing of the single trap level under a variety of geologic(al) factor quantity constraints as claimed in claim 2, its It is characterised by：The step 6) in, with reference to single sand body level substratum top surface structural map, sedimentary micro plan and oil and water zonation rule Plan, establishes single Oil Trap in single sand body level substratum, as follows：

Joint step 3) in sedimentary micro plan, 4) in top surface structural map and 5) in oil and water zonation rule plan, Single Oil Trap is determined according to channel boundary, tomography, microstructures and sandstone up pinchout line, each single sand is evaluated successively Different types of single Oil Trap in body level substratum；

Oil and water zonation rule plan is mainly used to determine oil-gas reservoir position and determines oils water boundary；Sedimentary micro plan is main For determining reservoir Sandbody Types and reservoir border；Top surface structural map is to determine Oil-gas Accumulation Types, including anticline, faulted anticline With fault block, construction-lithology and lithology, trap area, closure height and the maximum useful space of trap can be marked off；Joint profit Regularity of distribution plan, sedimentary micro plan and top surface structural map, determine the border of single Oil Trap.

6. the Favorable Areas method for optimizing of the single trap level under a variety of geologic(al) factor quantity constraints as claimed in claim 2, its It is characterised by：The step 7), single Oil Trap area overlapping and Oil Trap thickness in different single sand bodies level substratums are tired out Plus, particular content is as follows:

According to the control of high-resolution chronostratigraphic architecture, the single sand body level under the chronostratigraphic architecture control of establishment high-resolution is small The sandstone thickness of layer, all sandstone thickness are added up, and realize that the single Oil Trap thickness of different single sand body level substratums tires out Plus, the single Oil Trap area after being overlapped using single Oil Trap area is controlled, and obtains single Oil Trap area Oil-bearing sand cumulative thickness figure under control；

Based on the single Oil Trap flat distribution map in single sand body level substratum, by the single Oil Trap of each single sand body level substratum Single Oil Trap area overlapping is carried out, the single Oil Trap area overlapping distribution map of reservoir is developed.

7. the Favorable Areas method for optimizing of the single trap level under a variety of geologic(al) factor quantity constraints as claimed in claim 2, its It is characterised by：The step 8) in, 4 indexs of relation are stored up with reference to trap factor, reservoir key element, hydrocarbon source rock key element and source, are built The preferred reservoir forming factor I in vertical Favorable Areas_CCYSProbability and into hide match I_CCPPProbability dual factors Favorable Areas evaluation model, according to synthesis Evaluation index reservoir forming factor I_CCYSProbability and into hide match I_CCPPThe preferred Favorable Areas of probability, it is as follows：

Set up Favorable Areas splitting scheme：4 indexs of relation are stored up according to trap factor, reservoir key element, hydrocarbon source rock key element and source, in detail Thin information is as follows, and trap factor refers to Trap Typesof, and reservoir key element includes porosity of sandstones and reservoir depth, hydrocarbon source rock Key element includes organic matter type, maturity and hydrocarbon intensity, and source storage relation includes source-reservoir-seal assemblage；

Trap Typesof I_TTAnticline, faulted anticline and fault block, the four kinds of traps of construction-lithology and lithology can be divided into；

Porosity of sandstones I_RPIt can be divided into>20%th ,≤20-≤10%, ﹤ 10-≤5%,<5% 4 kind of segment；

Reservoir depth I_RBDIt is divided into<1500m ,≤1500-≤2500m, ﹥ 2500-≤3500m,>Tetra- depth segments of 3500m；

Organic matter type I_OMTDivide I, II₁、II₂, the types of III tetra-；

Maturity I_MIt is divided into ripe, high ripe, four standard intervals of post-mature and prematurity；

Hydrocarbon intensity I_HGTIt is divided into>2000th ,≤2000-≤1000, ﹤ 1000-≤500,<500 4 evaluation indexes；

Source-reservoir-seal assemblage I_RCCCan be divided into from be born from storage, down mountainalgorithm, on give birth to storage and strange land life storage four segments；Depth Scope 4500m is effective mining depth boundary line；

Wherein, reservoir forming factor probability includes trap factor, reservoir key element and hydrocarbon source rock key element, and its judgement schematics is as follows：

I_CCYS=I_TT×f(I_RP,I_RBD)×f(I_OMT,I_M,I_HGT) (22)

<mrow> <mi>f</mi> <mrow> <mo>(</mo> <msub> <mi>I</mi> <mrow> <mi>R</mi> <mi>P</mi> </mrow> </msub> <mo>,</mo> <msub> <mi>I</mi> <mrow> <mi>R</mi> <mi>B</mi> <mi>D</mi> </mrow> </msub> <mo>)</mo> </mrow> <mo>=</mo> <msqrt> <mfrac> <mrow> <msup> <msub> <mi>I</mi> <mrow> <mi>R</mi> <mi>P</mi> </mrow> </msub> <mn>2</mn> </msup> <mo>+</mo> <msup> <msub> <mi>I</mi> <mrow> <mi>R</mi> <mi>B</mi> <mi>D</mi> </mrow> </msub> <mn>2</mn> </msup> </mrow> <mn>2</mn> </mfrac> </msqrt> <mo>-</mo> <mo>-</mo> <mo>-</mo> <mrow> <mo>(</mo> <mn>23</mn> <mo>)</mo> </mrow> </mrow> 5

<mrow> <mi>f</mi> <mrow> <mo>(</mo> <msub> <mi>I</mi> <mrow> <mi>O</mi> <mi>M</mi> <mi>T</mi> </mrow> </msub> <mo>,</mo> <msub> <mi>I</mi> <mi>M</mi> </msub> <mo>,</mo> <msub> <mi>I</mi> <mrow> <mi>H</mi> <mi>G</mi> <mi>T</mi> </mrow> </msub> <mo>)</mo> </mrow> <mo>=</mo> <msqrt> <mfrac> <mrow> <msup> <msub> <mi>I</mi> <mrow> <mi>O</mi> <mi>M</mi> <mi>T</mi> </mrow> </msub> <mn>2</mn> </msup> <mo>+</mo> <msup> <msub> <mi>I</mi> <mi>M</mi> </msub> <mn>2</mn> </msup> <mo>+</mo> <msup> <msub> <mi>I</mi> <mrow> <mi>H</mi> <mi>G</mi> <mi>T</mi> </mrow> </msub> <mn>2</mn> </msup> </mrow> <mn>3</mn> </mfrac> </msqrt> <mo>-</mo> <mo>-</mo> <mo>-</mo> <mrow> <mo>(</mo> <mn>24</mn> <mo>)</mo> </mrow> </mrow>

Include source storage relational factors into matching probability is hidden, its judgement schematics is as follows：

I_CCPP=I_RCC (25)

In formula：I_CCYSBetween-reservoir forming factor condition, 0-1；I_TTBetween-evaluation of trap index, 0-1；f(I_RP, I_RBD)-preserve Layer evaluation number；f(I_OMT, I_M, I_HGT)-Evaluation of source rocks index；I_CCPP- into hiding matching probability, between 0-1；I_RCC- life storage Lid combination configuration relation evaluation number, 0-1；Using reservoir forming factor probability and into hiding matching probability dual factors preferred Favorable Areas.