CN104809277A - Geological modeling method for horizontal well of ultra-low permeability tight reservoir - Google Patents
Geological modeling method for horizontal well of ultra-low permeability tight reservoir Download PDFInfo
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Abstract
The invention provides a geological modeling method for a horizontal well of an ultra-low permeability tight reservoir, which comprises the following steps: 1) acquiring well information data, single well logging data, well point layering data and deposition microphase data of a horizontal section of a horizontal well, and determining reservoir layer parameters of the horizontal section of the horizontal well; 2) adding a vertical well control horizontal section structure on the horizontal section of the horizontal well to obtain an initial structure model; 3) establishing a reservoir facies model by utilizing sedimentary microfacies data and combining geological recognition results; 4) establishing a reservoir attribute model by utilizing the parameter analysis of the reservoir layer at the horizontal section of the horizontal well; 5) and verifying the geological model by using the actual track profile, the production dynamics and the numerical simulation of the horizontal well to obtain the three-dimensional geological model of the development area of the horizontal well. The method provides a data source for the research of the plane spread characteristics of the sand body, accurately describes the plane distribution trend and the vertical phase distribution trend of the reservoir stratum, improves the precision of a prediction model, and lays a foundation for the optimization of the ultra-low permeability oil reservoir development technical policy and the fine injection and production regulation.
Description
Technical field
The present invention is specifically related to a kind of Oil in Super-low Permeability compact reservoir horizontal well Geological Modeling.
Background technology
Reservoir modeling method is a fast-developing in recent years new and high technology, it fully utilizes various geology, earthquake, well logging and Production development data, and by geology statistical method, inter-wells predicting is carried out to various Reservoir Parameters, setting up quantitatively accurate three-dimensional visualization reservoir model, is an important component part of current pool description work.Reservoir modeling method can quantitatively characterizing and portray Reservoir Heterogeneity, thus uncertainty in Research on Oil gas exploration and exploitation and investment risk.
Along with extra-low-permeability reservoir development object reservoir properties worse and worse, traditional orientation well improves per-well production further and development benefit difficulty is increasing, and horizontal well has become one of gordian technique of Oil in Super-low Permeability compact oil reservoir Size Portfolio exploitation.How to make full use of the detecting information of horizontal well, to improve the standard the precision of well reservoir fine Geologic modeling, improve the pressure maintenance level of such low pressure reservoirs, realize the extended high rate of horizontal well development, stable yields, become one of technical barrier needing at present to solve both at home and abroad.
Meticulous reservoir geological modeling work is carried out for horizontal well targets sand body, set up lower actual high-precision three-dimensional geologic model hand to hand, and then carry out Fine Reservoir Numerical research, accurate description can be carried out to horizontal well productive prospecting and water breakthrough situation, simultaneously by the research of meticulous oil reservoir remaining oil distribution, can be horizontal well water-control oil-increasing and oil reservoir Tapping Residual Oil provides foundation, improve horizontal well development technology further.
Current reservoir geologic modeling method has two kinds, and one is usually adopt seismic data and the horizontal change of information formation feature of appearing carries out studying, describing, and this kind of technology exists serious defect on filed application; Two is that the Simulation and prediction of reservoir rocks phase and attribute adopts conventional orientation well data usually, although the variation characteristic on reservoir lithology and attribute are longitudinally accurately can be reflected, but for the oil reservoir that conventional orientation well is developed, well spacing is generally greater than the yardstick of reservoir building structure, between well, the distribution of physical parameter mainly relies on straight well well point parameter distribution, fully cannot reflect the Changing Pattern of the inner physical property of Sandbody Reservoirs, and horizontal well data can make up the defect on this geological information just.Horizontal well data is the geological information that Oil Field the most directly discloses reservoir horizontal change, utilize horizontal segment continually varying log analysis data to carry out physical property prediction in reservoir between well and there is special advantage, because horizontal well transversely can extend hundreds of rice in reservoir even go up km, numerous data point plays control action simultaneously, greatly can reduce the uncertainty of reservoir predicting between well; And spatially there is unique configuration relation due to horizontal well and stratum, compared with traditional straight well or conventional orientation well, horizontal well data has unrivaled advantage on the Lateral Change Characteristics of description reservoir; Therefore, need to provide a kind of method of horizontal well modeling to overcome the deficiency in existing Geological Modeling.
Summary of the invention
The object of the invention is to overcome the problem that existing reservoir geologic modeling method fully can not reflect the Changing Pattern of the inner physical property of Sandbody Reservoirs.
For this reason, the invention provides a kind of Oil in Super-low Permeability compact reservoir horizontal well Geological Modeling, comprise the steps:
1) the well information data of horizontal well horizontal segment, individual well log data, well point individual-layer data and sedimentary micro data are gathered, log data correction is carried out to horizontal well horizontal segment, rock core corrects and core Location, determines the horizontal well horizontal segment Reservoir Parameters of extra-low-permeability reservoir.
2) utilize step 1) in well information data, individual well log data and well point individual-layer data, adopt Kriging regression, obtain initial construction model, on horizontal well horizontal segment, increase straight well simultaneously, obtain the structure height of all horizontal well path and each straight well intersection point, with the structure height value of straight well and horizontal well path for benchmark, the initial construction model in TRAJECTORY CONTROL OF HORIZONTAL WELL region is adjusted.
3) in step 2) on the basis of initial construction model set up, utilize step 1) in sedimentary micro data and in conjunction with geology cognitive achievements, by Method of Stochastic and variogram analysis, set up reservoir phase model.
4) 3 ~ 5 grid local refinements that the net region passed horizontal well horizontal segment is adjacent, the size of encryption section grid is 1/3 of former grid, utilize reservoir phase model, horizontal well horizontal segment Reservoir Parameters and the matching of physical property variogram, set up reservoir model.
5) application level well actual path section, Production development and numerical simulation are verified initial construction model, reservoir phase model and reservoir model, and carry out section matching with horizontal well region varying level well track section, obtain horizontal well development district three-dimensional geological model.
Above-mentioned steps 1) in horizontal well horizontal segment log data to correct be utilize the log parameter of the contiguous straight well of horizontal well to correct horizontal well horizontal segment parameter.
Above-mentioned steps 1) in rock core to correct the lithological profile that rock core interface and rock core are obtained consistent.
Above-mentioned steps 1) in core Location make horizontal well horizontal segment longitudinally on depth difference within 1%.
Above-mentioned steps 1) in horizontal well horizontal segment Reservoir Parameters comprise factor of porosity, permeability and water saturation.
Above-mentioned steps 2) in horizontal well horizontal segment increases straight well be spaced apart 100m.
Beneficial effect of the present invention:
(1) this Oil in Super-low Permeability compact reservoir horizontal well Geological Modeling provided by the invention increases the correction of horizontal segment log data at data preparation stage, conventional rock core corrects and playback, obtain the rational Reservoir Parameters of horizontal well horizontal segment, solve stratum in horizontal well no longer about horizontal segment well-log information during well Rotational Symmetry as interval transit time and resistivity problem bigger than normal, overcome the limitation of horizontal well horizontal segment test data due to method of testing, the test result caused and straight well section test result have the defect of certain deviation.
(2) this Oil in Super-low Permeability compact reservoir horizontal well Geological Modeling provided by the invention utilizes horizontal well path and creates a series of straight well or synthesis well along horizontal segment, carries out the micro-structure adjustment between reference mark, substantially increases the precision of tectonic model.
(3) horizontal well data is equivalent to for the input of model provides one group of continuous print well point data, better describe reservoir physical parameter continuous-changing features in the plane, improve precision of forecasting model, adopt regulation and control for the optimization of extra-low-permeability reservoir developing value and meticulous note and lay a good foundation.
Below with reference to accompanying drawing, the present invention is described in further details.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of Oil in Super-low Permeability compact reservoir horizontal well Geological Modeling of the present invention.
Fig. 2 is the present invention creates straight well (synthesis well) along horizontal segment schematic diagram to first 427 horizontal well wellblocks.
Fig. 3 is the discretize design sketch that before the present invention adopts the adjustment of horizontal well data to first 427 horizontal well wellblocks, 18 wells are put down in celebrating.
Fig. 4 is the discretize design sketch that after the present invention adopts the adjustment of horizontal well data to first 427 horizontal well wellblocks, 18 wells are put down in celebrating.
Fig. 5 is that the present invention is to the spatial distribution characteristic figure after first 427 horizontal well wellblock horizontal wells, inclined shaft Data Discretization.
Fig. 6 is that the present invention is to design sketch before the flat 53 well water flat sector hole porosity discretize of first 427 horizontal well wellblock celebrating.
Fig. 7 is that the present invention is to design sketch after flat 53 wells of first 427 horizontal well wellblock celebrating and Fig. 6 same level sector hole porosity discretize.
Fig. 8 is that the present invention is to flat 53 wells the 23rd substratum factor of porosity distribution plan of first 427 horizontal well wellblock celebrating.
Fig. 9 is that the present invention is to flat 53 wells the 24th substratum factor of porosity distribution plan of first 427 horizontal well wellblock celebrating.
Figure 10 is that the present invention is to flat 53 wells the 25th substratum factor of porosity distribution plan of first 427 horizontal well wellblock celebrating.
Figure 11 is that the present invention is to flat 53 wells the 26th substratum factor of porosity distribution plan of first 427 horizontal well wellblock celebrating.
Figure 12 is that the present invention does not add horizontal wellbore porosity sectional view to flat 53 wells of first 427 horizontal well wellblock celebrating.
To be the present invention add factor of porosity sectional view after horizontal well to flat 53 wells of first 427 horizontal well wellblocks celebrating to Figure 13.
Figure 14 is the log data of the flat sector hole porosity of part of horizontal well water, permeability and the water saturation that the present invention gathers.
Figure 15 is the individual-layer data of the part straight well well point that the present invention increases.
Figure 16 is individual well sedimentary micro type map of the present invention.
Figure 17 is the reservoir phase illustraton of model set up in the present invention.
Figure 18 is step 4 of the present invention) in obtain point substratum, point microfacies rock core attribute distribution range.
Figure 19 is step 4 of the present invention) in point substratum, point microfacies oil reservoir group physical property variogram fitting parameter.
Figure 20 is long 631 substratum factor of porosity attribute model figure in the present invention.
Figure 21 is long 631 substratum permeability properties illustratons of model in the present invention.
Figure 22 is long 631 substratum water saturation attribute model figure in the present invention.
Figure 23 is the present invention China celebrating oil field Chang-6 oil reservoir unit 312-unit-first 310-55 well sedimentary micro sectional view.
Figure 24 is Chang-6 oil reservoir unit 312-unit-first 310-55 wellhole porosity sectional view in the present invention.
Figure 25 is Chang-6 oil reservoir unit 312-unit-first 310-55 well permeability profile figure in the present invention.
Figure 26 is Chang-6 oil reservoir unit 312-unit-first 310-55 well water saturation sectional view in the present invention.
Embodiment
Embodiment 1:
Fully can not reflect the problem of the Changing Pattern of the inner physical property of Sandbody Reservoirs in order to overcome existing reservoir geologic modeling method, as shown in Figure 1, present embodiments providing a kind of Oil in Super-low Permeability compact reservoir horizontal well Geological Modeling, comprising the steps:
1) the well information data of horizontal well horizontal segment, individual well log data, well point individual-layer data and sedimentary micro data are gathered, log data correction is carried out to horizontal well horizontal segment, rock core corrects and core Location, determines the horizontal well horizontal segment Reservoir Parameters of extra-low-permeability reservoir.
Wherein, well information data comprise well-name, X-coordinate, Y-coordinate and bushing height above sea level; Individual well log data comprises factor of porosity, permeability and water saturation; Well point individual-layer data comprises well-name, layer name and fathoms; Sedimentary micro data mainly refer to the electrofacies that individual well is explained.
As shown in figure 14, the log data of the flat sector hole porosity of part of horizontal well water, permeability and water saturation, log data correction calculation method is: factor of porosity Φ=57.5502+0.1386 × AC-31.0556 × DEN, AC is reservoir interval transit time, μ s/m; DEN is reservoir density, g/cm
3; Permeability LgK=0.1010 × Φ-1.6597, K is reservoir permeability, 10
-3μm
2; Water saturation
(a=9.422, b=1.158, m=0.8843, n=1.9526), Sw is water saturation, decimal; Rw is formation water resistivity, Ω m; A is lithology factor, without guiding principle amount; B is lithology factor, without guiding principle amount; M is cementation exponent, dimensionless; Rt is rock resistivity, Ω m; N is saturation exponent.
It is utilize the log parameter of the contiguous straight well of horizontal well to correct horizontal well horizontal segment parameter that horizontal well horizontal segment log data corrects.Rock core according to routine corrects and core Location, the log parameter factor of porosity of the contiguous straight well of correction water horizontal well, permeability and water saturation, then the log parameter factor of porosity of the contiguous straight well of horizontal well, permeability and water saturation (evening up by vertical depth) is utilized, under adding up the same degree of depth, the difference of contiguous straight well and horizontal wellbore logging parameter, realizes the parameters such as the factor of porosity to Oil in Super-low Permeability reservoir horizontal well horizontal segment, permeability and water saturation and corrects; It is consistent that rock core corrects the lithological profile that lithologic interface and rock core are obtained; Core Location make horizontal well horizontal segment longitudinally on depth difference within 1%, thus determine that horizontal well horizontal segment Reservoir Parameters comprises factor of porosity, permeability and water saturation, for follow-up model attributes provides reliable Data support.
Wherein, when rock core corrects and core Location is drilling and coring delivery, the rock core of coring last time and left behind may be had in core container, and core recovery does not generally reach 100%, and the error that drilling tool linear measure longimetry produces, the rock core degree of depth is forbidden; Mainly find lithologic interface accurately, first electrical measurement is complete determines well depth error afterwards, probably playbacks, then playback according to the lithologic interface determined and reference lamina to cored interval; Rock core corrects and core Location object obtains correct lithological profile.
2) utilize step 1) in well information data, individual well log data and well point individual-layer data, be the individual-layer data of part straight well well point as shown in figure 15, adopt Kriging regression (genus is known in and can checks in) on the net, obtain initial construction model, on horizontal well horizontal segment, increase straight well (synthesis well) simultaneously, obtain the structure height of all horizontal well path and each straight well (synthesis well) intersection point, with the structure height value of straight well (synthesis well) and horizontal well path for benchmark, the initial construction model in TRAJECTORY CONTROL OF HORIZONTAL WELL region is adjusted.
As shown in Figure 2, create a series of straight well (synthesis well) along horizontal segment, level of control section constructs, and substantially increase the precision of tectonic model, what described horizontal well horizontal segment increases straight well (synthesis well) is spaced apart 100m.
3) in step 2) on the basis of initial construction model set up, utilize step 1) in sedimentary micro data and in conjunction with geology cognitive achievements, by Method of Stochastic and variogram analysis, set up reservoir phase model, as shown in FIG. 16 and 17.
The present embodiment selects petrel Geologic modeling software (genus is known in and can checks in) on the net, and other Geologic modeling software such as RMS etc. also can be selected to set up Reservoir Fracture geologic model.
The matching principle of sedimentary micro variogram: the main minimum well spacing for horizontal well patterns of scope, side direction (NW trending) rational selection scope of searching for (east northeast to) is the maximal value of water injection well to horizontal segment end points, the zone of reasonableness of vertical search be horizontal segment to oil reservoir top dolly to maximal value, the scope of search is 180 °.
4) 3 ~ 5 grid local refinements that the net region passed horizontal well horizontal segment is adjacent, the size of encryption section grid is 1/3 of former grid, utilize reservoir phase model, horizontal well horizontal segment Reservoir Parameters and the matching of reservoir properties variogram, set up reservoir model.
As Figure 20, Figure 21, Figure 22 sets forth the attribute model figure of long 631 substratums (fundamental purpose layer) factor of porosity, permeability and water saturation.
According to the reservoir phase model set up, block conversion to the attribute data of input, remove exceptional value, point substratum, point microfacies obtain the distribution range of each attribute, to carry out sequential Gaussian simulation; The parameters that employing divides a substratum simultaneously, point microfacies asks for variogram, utilizes the result of the simulation of variogram, sedimentary micro and reserves digital simulation, sets up reservoir model.
As Figure 18 gives the distribution range of part point substratum, point microfacies rock core attribute, Figure 19 provides part point substratum, point microfacies oil reservoir group physical property variogram fitting parameter.
The matching principle of reservoir properties variogram: the main minimum well spacing for horizontal well patterns of scope, side direction (NW trending) rational selection scope of searching for (east northeast to) is the maximal value of water injection well to horizontal segment end points, the zone of reasonableness of vertical search be horizontal segment to oil reservoir top dolly to maximal value, the scope of search is 180 °.
5) application level well actual path section, Production development and numerical simulation are verified initial construction model, reservoir phase model and reservoir model, and carry out section matching with horizontal well region varying level well track section, obtain horizontal well development district three-dimensional geological model.
Based on horizontal well GEOLOGICAL MODELS OF PETROLEUM RESERVOIR (comprising initial construction model, reservoir phase model and reservoir model), application level well actual path section checking horizontal well GEOLOGICAL MODELS OF PETROLEUM RESERVOIR, application dynamic data, from injection-production relation aspect verification model, adopts the method matching production data of numerical simulation inverting.
As Figure 23, Figure 24, Figure 25 and Figure 26 sets forth China's celebrating oil field Chang-6 oil reservoir unit 312-unit-first 310-55 well sedimentary micro section, factor of porosity section, permeability profile and water saturation sectional view.
If horizontal well passes substantially in layer of sand, in order, lateral resolution is high for the reservoir sandbody lateral communication around horizontal well, then described horizontal well reservoir geologic modeling method more effectively can describe reservoir, horizontal well region three-dimensional spatial distribution feature.
If the permeability set up is consistent with injection-production relation with porosity model, show that horizontal well GEOLOGICAL MODELS OF PETROLEUM RESERVOIR is reliable, can as the model basis of numerical simulation.
If block qualified rates of fitting and matching ratio of single well are all greater than 80%, then the horizontal well GEOLOGICAL MODELS OF PETROLEUM RESERVOIR of described extra-low-permeability reservoir can accurately portray three-dimensional visualization reservoir model.
This Oil in Super-low Permeability compact reservoir horizontal well Geological Modeling provided by the invention increases horizontal segment log data at data preparation stage and corrects, conventional rock core corrects and playback, obtain the rational Reservoir Parameters of horizontal well horizontal segment, solve stratum in horizontal well no longer about horizontal segment well-log information during well Rotational Symmetry as interval transit time and resistivity problem bigger than normal, overcome the limitation of horizontal well horizontal segment test data due to method of testing, the test result caused and straight well section test result have the defect of certain deviation; Meanwhile, the present invention utilizes horizontal well path and creates a series of straight well or synthesis well along horizontal segment, carries out the micro-structure adjustment between reference mark, substantially increases the precision of tectonic model.
Embodiment 2:
Extra-low-permeability reservoir unit 427 horizontal well region Chang-6 oil reservoir are in south, sedimentary basin slope, Erdos, northern Shensi, long 6
3belong to lacus subaqueous fan deposition, sand-body distribution mainly controls by braided stream microfacies, next by between water channel leading edge, water channel and conduit control, average pore 11.7%, mean permeability 0.34mD, net thickness 19.7m.
The present embodiment is on the basis of embodiment 1, Oil in Super-low Permeability compact reservoir horizontal well Geological Modeling of the present invention is adopted to extra-low-permeability reservoir unit 427 horizontal well region, setting up in tectonic model process, adopt horizontal well data to control structure aspect, and under the constraint of horizontal well path, carry out the micro-structure adjustment between reference mark.
Fig. 2 illustrates in above-mentioned modeling method step 2) in create a series of straight well (synthesis well) schematic diagram along horizontal segment, in figure, dotted line represents the synthesis well of establishment, and solid line around represents water injection well around horizontal well.Fig. 3 and Fig. 4 then illustrates through above-mentioned steps 2) in obtain in initial construction model process discretize design sketch, Fig. 3 is the discretize design sketch that before adopting the adjustment of horizontal well data, 18 wells are put down in celebrating, Fig. 4 is the discretize design sketch that after adopting the adjustment of horizontal well data, 18 wells are put down in celebrating, after adjustment, Horizontal Well TRAJECTORY CONTROL is at same layer, Fig. 3 and Fig. 4 comparing result shows, utilize horizontal well data to retrain structure, realize interwell structure change prediction preferably, improve the precision of tectonic model.And after Fig. 5 illustrates horizontal well and orientation well Data Discretization, the grid making well track pass all obtains assignment.Fig. 6 is design sketch before the flat 53 well water flat sector hole porosity discretize of celebrating, and Fig. 7 is design sketch after flat 53 wells of celebrating and Fig. 6 same level sector hole porosity discretize, is contrasted can be found out by Fig. 6 and Fig. 7, and after discretize, horizontal well horizontal segment factor of porosity success assignment is in grid.Fig. 8, Fig. 9, Figure 10 and Figure 11 is respectively the flat 53 well 23-26 substratum factor of porosity distribution plans of celebrating, from the display effect of the different clathrum of factor of porosity analog result, horizontal well path swings up and down and causes horizontal well flickering at different clathrum, illustrate that factor of porosity analog result truly can reflect horizontal well reservoir parameter variation characteristic spatially, successfully simulate the factor of porosity distribution characteristics on horizontal well bearing of trend, better description reservoir geology attribute Lateral Change Characteristics, reduce the uncertainty of reservoir predicting between well, accurately portray lateral segment reservoir heterogeneity.Figure 12 and Figure 13 illustrates through above-mentioned steps 5) to the Contrast on effect verified of each model set up, Figure 12 is that flat 53 wells of first 427 horizontal well wellblock celebrating do not add horizontal wellbore porosity sectional view, Figure 13 is that first 427 horizontal well wellblocks flat 53 wells of celebrating add factor of porosity sectional view after horizontal well, contrasted can be found out by Figure 12 and Figure 13, after adding horizontal well, horizontal well passes substantially in layer of sand, reservoir sandbody around horizontal well is longitudinal, lateral resolution is high, and the reservoir sandbody lateral communication around horizontal well in order.
This Oil in Super-low Permeability compact reservoir horizontal well Geological Modeling provided by the invention provides additional information to originate for sand body planar distribution properties study, accurate description reservoir plane distribution trend and vertical Entropy density deviation trend, improve precision of forecasting model, adopt regulation and control for the optimization of extra-low-permeability reservoir developing value and meticulous note and lay a good foundation.
More than exemplifying is only illustrate of the present invention, does not form the restriction to protection scope of the present invention, everyly all belongs within protection scope of the present invention with the same or analogous design of the present invention.
Claims (6)
1. an Oil in Super-low Permeability compact reservoir horizontal well Geological Modeling, is characterized in that: comprise the steps:
1) the well information data of horizontal well horizontal segment, individual well log data, well point individual-layer data and sedimentary micro data are gathered, log data correction is carried out to horizontal well horizontal segment, rock core corrects and core Location, determines the horizontal well horizontal segment Reservoir Parameters of extra-low-permeability reservoir;
2) utilize step 1) in well information data, individual well log data and well point individual-layer data, adopt Kriging regression, obtain initial construction model, on horizontal well horizontal segment, increase straight well simultaneously, obtain the structure height of all horizontal well path and each straight well intersection point, with the structure height value of straight well and horizontal well path for benchmark, the initial construction model in TRAJECTORY CONTROL OF HORIZONTAL WELL region is adjusted;
3) in step 2) on the basis of initial construction model set up, utilize step 1) in sedimentary micro data and in conjunction with geology cognitive achievements, by Method of Stochastic and variogram analysis, set up reservoir phase model;
4) 3 ~ 5 grid local refinements that the net region passed horizontal well horizontal segment is adjacent, the size of encryption section grid is 1/3 of former grid, utilize reservoir phase model, horizontal well horizontal segment Reservoir Parameters and the matching of physical property variogram, set up reservoir model;
5) application level well actual path section, Production development and numerical simulation are verified initial construction model, reservoir phase model and reservoir model, and carry out section matching with horizontal well region varying level well track section, obtain horizontal well development district three-dimensional geological model.
2. Oil in Super-low Permeability compact reservoir horizontal well Geological Modeling as claimed in claim 1, is characterized in that: described step 1) in horizontal well horizontal segment log data to correct be utilize the log parameter of the contiguous straight well of horizontal well to correct horizontal well horizontal segment parameter.
3. Oil in Super-low Permeability compact reservoir horizontal well Geological Modeling as claimed in claim 1, is characterized in that: described step 1) in rock core to correct the lithological profile that lithologic interface and rock core are obtained consistent.
4. Oil in Super-low Permeability compact reservoir horizontal well Geological Modeling as claimed in claim 1, is characterized in that: described step 1) in core Location make horizontal well horizontal segment longitudinally on depth difference within 1%.
5. Oil in Super-low Permeability compact reservoir horizontal well Geological Modeling as claimed in claim 1, is characterized in that: described step 1) in horizontal well horizontal segment Reservoir Parameters comprise factor of porosity, permeability and water saturation.
6. Oil in Super-low Permeability compact reservoir horizontal well Geological Modeling as claimed in claim 1, is characterized in that: described step 2) in horizontal well horizontal segment increases straight well be spaced apart 100m.
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| CN105551083A (en) * | 2015-12-08 | 2016-05-04 | 中国石油天然气集团公司 | Method for depicting relationship between horizontal well track and strata |
| CN105701319A (en) * | 2016-03-08 | 2016-06-22 | 中国石油大学(华东) | Sedimentary microfacies modeling method under horizontal well rule development well net |
| CN106154322A (en) * | 2016-08-02 | 2016-11-23 | 中国石油天然气集团公司 | Log curve correction method and apparatus |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130211807A1 (en) * | 2010-10-27 | 2013-08-15 | Elizabeth Land Templeton-Barrett | Method and System for Fracturing a Formation |
| CN103256035A (en) * | 2013-05-22 | 2013-08-21 | 中国石化集团华北石油局 | Fracturing fracture geological design method of horizontal well of dense gas field |
| CN104453876A (en) * | 2014-11-03 | 2015-03-25 | 中国石油天然气股份有限公司 | Method and device for predicting oil and gas yield of horizontal well of compact oil and gas reservoir |
-
2015
- 2015-04-14 CN CN201510176675.6A patent/CN104809277B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130211807A1 (en) * | 2010-10-27 | 2013-08-15 | Elizabeth Land Templeton-Barrett | Method and System for Fracturing a Formation |
| CN103256035A (en) * | 2013-05-22 | 2013-08-21 | 中国石化集团华北石油局 | Fracturing fracture geological design method of horizontal well of dense gas field |
| CN104453876A (en) * | 2014-11-03 | 2015-03-25 | 中国石油天然气股份有限公司 | Method and device for predicting oil and gas yield of horizontal well of compact oil and gas reservoir |
Non-Patent Citations (1)
| Title |
|---|
| ZHAO J 等: "Optimization of horizontal well injection-production parameters for ultra-low permeable–tight oil production: A case from Changqing Oilfield, Ordos Basin, NW China", 《PETROLEUM EXPLORATION & DEVELOPMENT》 * |
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