CN105718705A - Oil and gas field dynamic analysis method - Google Patents
Oil and gas field dynamic analysis method Download PDFInfo
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- CN105718705A CN105718705A CN201610151763.5A CN201610151763A CN105718705A CN 105718705 A CN105718705 A CN 105718705A CN 201610151763 A CN201610151763 A CN 201610151763A CN 105718705 A CN105718705 A CN 105718705A
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Abstract
The invention discloses an oil and gas field dynamic analysis method. By an empirical analysis method in a block, the develop scheme including the following steps is firstly obtained; then, the scheme is subjected to simulation analysis by combining a theoretical analysis and mathematical model; if the analysis result of the mathematical model is identical or similar to the result deduced by theory, the scheme is adopted for regulation; otherwise, a block with the identical or similar property is found by an analogy analysis method; the analogy analysis is performed; a final regulation scheme is obtained. The oil and gas field dynamic analysis method has the advantages that various dynamic analysis methods are adopted for mutual compensation and mutual verification; the problem of single mode of oil and gas field dynamic analysis in the prior art is solved; the goal of oil and gas field dynamic analysis through mutual verification by various methods is realized.
Description
Technical field
The present invention relates to oil and gas development field, relate in particular to oil gas field dynamic analysing method.
Background technology
Dynamically analyze, refer in oilfield exploitation procedure, on the basis of a large amount of reliable data, use multi-subject knowledge and technology, comprehensive analysis has put into the dynamic rule of exploitation oil-gas reservoir, finds the relation between all kinds of dynamic and static state parameters, it is proposed to the overall planning of oil field development and regulating measures, and the Variation Features amendment scheme according to dynamic parameter, make oil reservoir reach higher ultimate recovery and higher development level, obtain good economic benefit.Development behavior is analyzed through oil field development all the time, and it mainly has the effect that (1) sets up the geological foundation of oil field development, completes the Dynamic profiling of oil reservoir, make development decision-making be based upon on the basis of objective reality on the basis that oil reservoir static state describes；(2) understanding is revised.Constantly revise to the geologic feature of underground, oil field, fluid distrbution, petroleum resources utilization obstacle understanding；(3) adjustment is instructed.-oil field development is a continuous adjustment, constantly perfect process, any one regulating measures, whether modification scenario (as well pattern thickening, flooding system adjustment, development scheme change), or single well measure (such as pressure break, water blockoff, profile control etc.) all must have clear and definite purposiveness, very strong specific aim and scientific prediction, it is according to deriving from dynamic analysis；(4) in conjunction with fine geologic description, the planning forecast of science, for oil field development, policymaker are a good staff officer, it is determined that the main direction of modification scenario, arrange strategic plan.According to the rank analyzing object, can by being dynamically divided into individual well dynamically to analyze, well group performance analysis, block performance analysis, Reservoir performance analysis.Existing oil gas field dynamic analysis technology, generally adopts single method to be analyzed, and it is analyzed result and comparatively unilateral problem easily occurs.
Summary of the invention
It is an object of the invention to propose oil gas field dynamic analysing method, to solve the problem that in prior art, oil gas field dynamic analysing method is single, it is achieved carry out, by what multiple method corroborated each other, the purpose that oil gas field is dynamically analyzed.
The present invention is achieved through the following technical solutions:
Oil gas field dynamic analysing method, in a certain oil and gas development block, implements techniques below step: (a) collects all basic geological datas in block, including reservoir parameter, fluid properties, oil and gas and water distribution, Oil Reservoir Types, type of drive, layering reserves；Collect static geologic information in block, including generalized geologic map, sedimentary facies distribution figure, sandbody distribution figure, oil reservoir connected graph, physical property scattergram, reservoir relative permeability curve；Collect static geologic information in block, including strata pressure scattergram, moisture content Butut, water injection well pressure history, production rate decline curve, WATER FLOODING CHARACTERISTIC CURVE；B above-mentioned data information is imported modeling software by (), set up dynamic parameter mathematical model in block；C single well data as much as possible in () statistics block, uses mathematical statistics method to set up empirical equation, on this basis Oil and gas field development scheme is adjusted；D mathematical model that () is set up by step (b), is simulated analyzing to the Adjusted Option in step (c), if the analysis result of mathematical model is identical and close with shown in empirical equation, then adopts the program to be adjusted；If e the analysis result of () mathematical model is different from shown in empirical equation or differ greatly, then find out the block with same or like character, carry out analogy analysis, the similarity degree according to analogy analysis conclusion, draw final Adjusted Option.For the problem that oil gas field dynamic analysing method difficult in prior art is single, the present invention proposes a kind of oil gas field dynamic analysing method, and first the method collects above-mentioned all of geologic information, it is simple to draws theoretical curve and is analyzed research.Wherein:
Generalized geologic map is mainly used in prediction oil reservoir Favorable Areas；
Sedimentary facies distribution figure helps to understand deposit soil boy structure, and forms the comprehensive characteristics of deposit in this context, is conducive to correctly recognizing the genetic type of reservoir, scale, geometric shape and the regularity of distribution etc.；
Oil reservoir connected graph mainly includes oil reservoir profile and oil reservoir panel map, for judging that connection on oil reservoir different directions and note adopt corresponding situation；
Permeability saturation curve is the basis of research multiphase porous flow, it calculates in oil field development, dynamically analyzes, determines in reservoir is all requisite capsule information in the distribution of oil gas water saturation degree and all kinds of calculating relevant with water drive oil, is requisite data information in dynamically analyzing；
Moisture distribution on the main reflection planes of moisture content Butut, to grasping and the prediction moisture change of individual well, adjusts control oil-field aqueous and plays directive function.
All of data information in step (a) is imported modeling software, sets up dynamic parameter mathematical model in block；Single well data as much as possible in statistics block, uses mathematical statistics method to set up empirical equation, on this basis Oil and gas field development scheme is adjusted simultaneously；Again through the mathematical model utilizing modeling software to set up, it is simulated analyzing to the Adjusted Option determining to adopt, if the analysis result of mathematical model is identical and close with shown in empirical equation, then adopts the program to be adjusted；If the analysis result of mathematical model is different from shown in empirical equation or differs greatly, then find out the block with same or like character, carry out analogy analysis, the similarity degree according to analogy analysis conclusion, draw final Adjusted Option.Namely it is, or while differing greatly different from shown in empirical equation for the analysis result of mathematical model, we find out the block with same or like character and carry out analogy analysis, this contrast block was preferably exploited before this block, was namely obtained in that the experience of more oil-gas reservoir subsequent development situation is advisable.
To sum up, first the present invention draws lower step development plan according to the method for empirical analysis in block, it is simulated analyzing to the program with mathematical model in conjunction with theory analysis, if the result that the analysis result of mathematical model and theoretical derivation go out is same or like, then adopts the program to be adjusted；Otherwise, then the method taking analogy analysis, find out the block with same or like character, carry out analogy analysis, the similarity degree according to analogy analysis conclusion, draw final Adjusted Option.Oil gas field dynamic analysing method proposed by the invention, multiple dynamic analysing method is adopted mutually to make up, mutually confirm, solve the problem that the dynamic analysis mode of oil gas field in prior art is single, it is achieved carry out, by what multiple method corroborated each other, the purpose that oil gas field is dynamically analyzed.
Preferably, described step (b) and step (c) order are interchangeable.Namely the mode of theory analysis is not conflicted with mathematical modeling mode, and its order does not limit.
The present invention compared with prior art, has such advantages as and beneficial effect:
Oil gas field dynamic analysing method of the present invention, first lower step development plan is drawn by the method for empirical analysis in block, it is simulated analyzing to the program with mathematical model in conjunction with theory analysis, if the result that the analysis result of mathematical model and theoretical derivation go out is same or like, then the program is adopted to be adjusted；Otherwise, then the method taking analogy analysis, find out the block with same or like character, carry out analogy analysis, draw final Adjusted Option.The present invention adopts multiple dynamic analysing method mutually to make up, mutually confirm, and solves the problem that the dynamic analysis mode of oil gas field in prior art is single, it is achieved carry out, by what multiple method corroborated each other, the purpose that oil gas field is dynamically analyzed.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by the embodiment of the present invention, constitutes the part of the application, is not intended that the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is the schematic process flow diagram of one specific embodiment of the present invention.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly understand, below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, and exemplary embodiment and the explanation thereof of the present invention are only used for explaining the present invention, not as a limitation of the invention.
Embodiment 1:
Oil gas field dynamic analysing method as shown in Figure 1, in a certain oil and gas development block, implement techniques below step: (a) collects all basic geological datas in block, including reservoir parameter, fluid properties, oil and gas and water distribution, Oil Reservoir Types, type of drive, layering reserves；Collect static geologic information in block, including generalized geologic map, sedimentary facies distribution figure, sandbody distribution figure, oil reservoir connected graph, physical property scattergram, reservoir relative permeability curve；Collect static geologic information in block, including strata pressure scattergram, moisture content Butut, water injection well pressure history, production rate decline curve, WATER FLOODING CHARACTERISTIC CURVE；B above-mentioned data information is imported modeling software by (), set up dynamic parameter mathematical model in block；C single well data as much as possible in () statistics block, uses mathematical statistics method to set up empirical equation, on this basis Oil and gas field development scheme is adjusted；D mathematical model that () is set up by step (b), is simulated analyzing to the Adjusted Option in step (c), if the analysis result of mathematical model is identical and close with shown in empirical equation, then adopts the program to be adjusted；If e the analysis result of () mathematical model is different from shown in empirical equation or differ greatly, then find out the block with same or like character, carry out analogy analysis, the similarity degree according to analogy analysis conclusion, draw final Adjusted Option.
In the present embodiment, all of data information in step (a) is imported modeling software, sets up dynamic parameter mathematical model in block；Single well data as much as possible in statistics block, uses mathematical statistics method to set up empirical equation, on this basis Oil and gas field development scheme is adjusted simultaneously；Again through the mathematical model utilizing modeling software to set up, it is simulated analyzing to the Adjusted Option determining to adopt, if the analysis result of mathematical model is identical and close with shown in empirical equation, then adopts the program to be adjusted；If the analysis result of mathematical model is different from shown in empirical equation or differs greatly, then find out the block with same or like character, carry out analogy analysis, the similarity degree according to analogy analysis conclusion, draw final Adjusted Option.Namely it is, or while differing greatly different from shown in empirical equation for the analysis result of mathematical model, we find out the block with same or like character and carry out analogy analysis, this contrast block was preferably exploited before this block, namely it is obtained in that the experience of more oil-gas reservoir subsequent development situation is advisable, similarity degree according to analogy analysis conclusion, draws final Adjusted Option.Oil gas field dynamic analysing method proposed by the invention, multiple dynamic analysing method is adopted mutually to make up, mutually confirm, solve the problem that the dynamic analysis mode of oil gas field in prior art is single, it is achieved carry out, by what multiple method corroborated each other, the purpose that oil gas field is dynamically analyzed.
Above-described detailed description of the invention; the purpose of the present invention, technical scheme and beneficial effect have been further described; it is it should be understood that; the foregoing is only the specific embodiment of the present invention; the protection domain being not intended to limit the present invention; all within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (2)
1. oil gas field dynamic analysing method, it is characterised in that in a certain oil and gas development block, implements techniques below step:
A () collects all basic geological datas in block, including reservoir parameter, fluid properties, oil and gas and water distribution, Oil Reservoir Types, type of drive, layering reserves；Collect static geologic information in block, including generalized geologic map, sedimentary facies distribution figure, sandbody distribution figure, oil reservoir connected graph, physical property scattergram, reservoir relative permeability curve；Collect static geologic information in block, including strata pressure scattergram, moisture content Butut, water injection well pressure history, production rate decline curve, WATER FLOODING CHARACTERISTIC CURVE；
B above-mentioned data information is imported modeling software by (), set up dynamic parameter mathematical model in block；
C single well data as much as possible in () statistics block, uses mathematical statistics method to set up empirical equation, on this basis Oil and gas field development scheme is adjusted；
D mathematical model that () is set up by step (b), is simulated analyzing to the Adjusted Option in step (c), if the analysis result of mathematical model is identical and close with shown in empirical equation, then adopts the program to be adjusted；
If e the analysis result of () mathematical model is different from shown in empirical equation or differ greatly, then find out the block with same or like character, carry out analogy analysis, the similarity degree according to analogy analysis conclusion, draw final Adjusted Option.
2. oil gas field dynamic analysing method according to claim 1, it is characterised in that: described step (b) and step (c) order are interchangeable.
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| CN109403935A (en) * | 2018-09-30 | 2019-03-01 | 中海石油(中国)有限公司 | A kind of oil-sand SAGD Encryption Well oil increment calculation method |
| CN111754611A (en) * | 2020-05-26 | 2020-10-09 | 中国石油天然气集团有限公司 | Method and system for automatically drawing inter-well sand body connectivity map based on geological model constraint |
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