CN108490484B - Method for dissection of blank space of mature exploration area of fractured basin - Google Patents
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Abstract
The invention provides a method for dissecting a reserve blank area of a mature exploration area of a depressed area, which comprises the following steps: predicting the potential of the residual resources according to a geological Parieton probability model; predicting possible oil reservoir types according to the order recognition of oil reservoir distribution; establishing a fine geological model based on exploratory well-development well-seismic inversion dissection; performing superposition evaluation on the accumulation conditions to determine accumulation enrichment factors; carrying out analysis on the abandoned wells by positive and negative comparison, and determining the blank reason of reserves; aiming at the attack and the customs, establishing a blank area exploration key technology; and (4) coupling and quantitatively depicting the trapped elements to predict favorable exploration targets. The method for the reserve blank area dissection of the mature exploration area of the fractured basin solves the problem of fine exploration of the reserve blank area, has strong operability, and provides a basis for the favorable target prediction of the blank area.
Description
Technical Field
The invention relates to the technical field of oil field development, in particular to a method for dissecting a reserve blank area of a mature exploration area of a depressed area.
Background
With the situation that the exploration degree of depression due to Jiyang is continuously improved and the exploration difficulty is increased day by day, how to carry out fine exploration on the main oil-bearing stratum system and realize the target of scale benefit increase and storage becomes an irreparable problem for exploration workers. For fine exploration work thoughts and processes the explorationist has developed a series of specifications or standards in long-term practice, such as: the method comprises the steps of geological risk evaluation specification, hidden trap oil gas exploration geological evaluation specification, oil gas exploration well geological design specification and the like, and the unified specification is lacked for carrying out fine research on the blank area of reserves.
The blank region of the reserve of the mature exploration area refers to a region or a zone with certain exploration potential, which has low cognition degree and is caused by complex enrichment rule of oil and gas reservoir or lack of matched exploration technology, of the main oil-gas-bearing layer. Although macroscopic regular recognitions, such as theories of facies potential reservoir control, slope breaking sand control, and mesh blanket conduction, are formed in exploration in the mature exploration area, the theories and the recognitions also effectively guide exploration of the mature exploration area, the cause of loss of interest of different types of oil reservoirs is considered to be different through analysis of the loss of interest well of the mature exploration area, so that fine geological research needs to be further carried out on the oil reservoirs of different types to form a corresponding matching technology to guide exploration of blank areas of the mature exploration area. Therefore, a new method for dissecting the reserve blank area of the mature exploration area of the fractured basin is invented, and the technical problems are solved.
Disclosure of Invention
The invention aims to provide a method for the reserve blank area dissection of a mature exploration area of a depressed area, which solves the problem of reserve blank area fine exploration, has strong operability and provides a basis for the prediction of a blank area favorable target.
The object of the invention can be achieved by the following technical measures: the method for the blank area dissection of the mature probe area reserve of the fractured basin comprises the following steps: step 1, predicting the potential of residual resources according to a geological Parieton probability model; step 2, predicting possible oil reservoir types according to the order recognition of oil reservoir distribution; step 3, establishing a fine geological model based on exploratory well-development well-seismic inversion dissection; step 4, overlapping and evaluating the accumulation conditions to determine accumulation enrichment factors; step 5, carrying out analysis on the lost circulation wells in a positive and negative comparison manner, and determining the blank reasons of reserves; step 6, aiming at the attack, establishing a blank area exploration key technology; and 7, coupling and quantitatively depicting the trapped and hidden elements to predict a favorable exploration target.
The object of the invention can also be achieved by the following technical measures:
in step 1, for the blank space exploration potential of a mature exploration area, firstly, a mathematical method is used for carrying out resource assessment on the blank space favorable for exploration, whether exploration is worth or not is determined, the number and the resource amount of oil and gas reservoirs in intervals of different scales are predicted by utilizing a Parieton model under the condition of giving the residual resource amount, and exploration decision-making personnel are guided to explore and deploy.
In step 2, the reservoir distribution orderliness refers to that in the process of forming and developing the fractured basin, structural evolution, sedimentary filling and pressure field distribution are taken as the leading factors, and under the control of regional structural activities, the internal construction units, the sedimentary system, the pressure field distribution, the reservoir types, the storage cap generation configuration relation and the conduction system combination pattern of the basin all have obvious regularity, so that the regularity that the reservoir distribution has ordered changes is determined, and a unified reservoir distribution whole is formed.
In step 2, the oil reservoir distribution order recognition guides exploration selection, namely, firstly, through the fine recognition of the structure and the deposition of the main oil-bearing layer, the change rule of the order of the reservoir forming elements and the transportation and gathering modes is analyzed, the oil reservoir type of the mature exploratory area and the regularity of the oil reservoir distribution are revealed, and targeted attack is carried out on the possible oil reservoir types in the blank area of the reserves.
In step 3, exploration well data and exploration area development well data are applied, seismic inversion data are combined, fine comparison is carried out, small-layer sand body distribution is depicted, and a fine geological model is built.
In step 4, under the guidance of an oil reservoir distribution sequence mode, establishing a corresponding reservoir formation mode through pairwise superposition analysis of oil reservoir distribution and a basic graph, finding typical anatomy of an oil reservoir, quantitatively evaluating to determine a mature exploratory region oil-gas reservoir formation mechanism and determining reservoir formation main control factors.
Step 4 comprises the following steps:
(1) constructing, depositing and superposing the oil reservoir, analyzing whether the oil reservoir is controlled by a construction position, a construction pattern, a fault and a non-integration surface, further determining the type of the oil reservoir, and analyzing the control action of a sedimentary facies zone, the distribution of the reservoir and the physical property of the reservoir on the oil reservoir;
(2) superposing the pressure field with the oil reservoir, analyzing and exploring the pressure field characteristics of an oil reservoir distribution area, analyzing the composition of reservoir formation power of a research area, and further analyzing the control effect of pressure on oil and gas migration and reservoir formation;
(3) the capping layer is overlapped with the oil reservoir, the control effect of the capping layer on trapping is analyzed, the capping mode and the capping mechanism of the oil reservoir are determined according to different types of oil reservoirs, and a corresponding quantitative evaluation method is established;
(4) overlapping the oil-bearing property with the element of the oil deposit, analyzing the main control factor of the oil-bearing property of the oil deposit, and forming a corresponding quantitative evaluation method, wherein the element of the oil deposit comprises the following components: the key elements of trap type, oil reservoir burial depth, test condition, logging display, formation pressure, reservoir physical property, cap rock property, fault element and oil-bearing height.
In step 5, through the comparative analysis of the successful and lost interest exploratory well reservoir formation factors of the mature exploratory area, 1-2 successful wells and lost interest wells with different geological conditions and the same other geological conditions are found, reservoir formation main control factors are further implemented, main reasons for blank area formation are summarized, and main problems for restricting blank area exploration are found.
In step 6, key factors for restricting blank area exploration are implemented through analysis of reserve blank area accumulation conditions, and on the basis of adaptability analysis of existing exploration technologies of the reserve area, targeted technology attack is carried out to form an appropriate fine exploration matching evaluation technology to guide blank area exploration.
In step 6, typical oil reservoir anatomical analysis considers that the key factors for restricting blank area exploration are three factors of accurate implementation of trap, trap effectiveness judgment and trap oil-containing height evaluation; the trap is favorably realized by utilizing fine geological modeling, and for the developed fault plugging type trap, the trap effectiveness is judged by calculating the fault opening and closing performance; by utilizing the superposition result of the oil-containing height and the reservoir forming factors, the sand body inclination angle, the trap closing height, the physical index and the fault mud total factor are subjected to multiple regression with the oil-containing height of the oil reservoir, an oil-containing height prediction model is established, the oil-containing height and the oil production capacity of each effective trap are evaluated,
in step 7, overlapping of key factors influencing different trap formations and overlapping of related basic graphs, including overlapping of a construction line and sand body thickness, sand body physical properties and a pressure field, is used for preferably evaluating the trap effectiveness of favorable traps, quantitatively evaluating the physical property lower limit of trap oil production, the closing property of traps, the fault opening and closing property and the oil-containing property of traps, and further preferably conducting drilling on favorable traps.
The invention discloses a method for dissecting a blank area of a mature exploration area of a fractured basin, relates to the field of oil and gas exploration of the mature exploration area, and particularly relates to methods such as fine geological research, evaluation of exploration potential of the blank area of the mature exploration area of a typical area, prediction of a mathematical geological method and the like to determine a favorable target of the blank area of the mature exploration area. The method utilizes basic working specifications of a seven-step walking research idea to develop fine research on reserve blank area accumulation, successfully analyzes and clarifies reserve blank area cause with the lost-interest exploratory well, and combines a mathematical geological method to predict favorable targets. The method for dissecting the blank space of the reserve of the mature exploration area of the fractured-vuggy basin has important guiding and reference significance for exploration and deployment of the high exploration degree area of the fractured-vuggy basin in the east China, and the achievement has wide popularization and application prospects.
Drawings
Fig. 1 is a sequence diagram of three-segment sand reserves predicted by a geologic paletto model in the south of the bohai in an embodiment of the present invention;
fig. 2 is a diagram illustrating an oil reservoir order distribution in the south of the bohai region in an embodiment of the present invention;
fig. 3 is a diagram of deposited phases of three sand groups of the bohai south slope sand section in an embodiment of the present invention;
fig. 4 is a superposition graph of three section of Bohai south slope sand component and reservoir in an embodiment of the invention;
FIG. 5 is a template for comparing the well-completion and the fluid-loss exploratory well-reservoir formation factors in a mature exploratory area according to an embodiment of the present invention;
fig. 6 is a diagram illustrating a diagram related to a bod lat south slope 8 sand trap prediction in an embodiment of the present invention;
FIG. 7 is a flow chart of a method for clear area dissection of a mature probe volume in a depressed basin in accordance with an embodiment of the present invention.
Detailed Description
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Fig. 7 is a flowchart of the method for segmenting the clear area of the mature probe region in the depressed basin according to the present invention.
In step 101, predicting the potential of the residual resources according to a geological Parieton probability model;
for the exploration potential of blank areas of mature exploration areas, firstly, a resource evaluation is carried out on favorable blank areas by a mathematical method to determine whether the exploration is worth or not. The geologic palietto method is an advanced method in the resource evaluation at present. Exploration practices of oil fields in the world show that the distribution scale of all oil and gas reservoirs in a certain exploration area generally obeys a Parieton probability model. The number and resource amount of oil and gas reservoirs in intervals of different scales can be predicted by utilizing the Parieton model under the condition of giving the residual resource amount, and exploration decision-making personnel are guided to explore and deploy as shown in figure 1.
At step 102, possible reservoir types are predicted based on the "reservoir distribution orderliness" recognition.
The reservoir distribution orderliness is that in the process of forming and developing the fractured basin, structural evolution, sedimentary filling and pressure field distribution are taken as the leading factors, and under the control of regional structural activities, the construction units, the sedimentary system, the pressure field distribution, the reservoir type, the production and storage cap configuration relationship, the transmission and conduction system combination pattern and other aspects in the basin have obvious regularity, so that the regularity that the oil-gas reservoir distribution has ordered changes is determined, and a unified oil-gas distribution whole body of the basin is formed.
With the continuous improvement of the complexity of exploration objects, the requirement on higher and higher prediction accuracy of oil reservoirs is met, the change rule of the ordering of reservoir formation elements and a transport and aggregation mode is analyzed through the fine understanding of the structure and deposition of a main oil-bearing layer, the regularity of the oil reservoir type and the oil reservoir distribution of a mature exploration area is revealed, and the targeted attack on the oil reservoir types possibly existing in the blank area of reserves is developed.
For example, in the multi-stage structure evolution process from a steep slope zone at the north part, a depressed zone at the middle part, a slope zone at the south part and a raised zone at the south part in the Bohai south region, the whole structure is complete, the deposition filling patterns are rich, and the oil and gas transportation and gathering process has the characteristic of multi-stage continuity. The orderliness changes of the basin structure and the sediment filling control the orderliness of the trap type, the conduction system and the power structure, and finally determine the orderliness characteristic of the oil reservoir distribution sequence in the Bohai south region. The concrete expression is as follows: on the plane, from the depressed center to the edge, a lithologic reservoir-a structural lithologic reservoir-a lithologic structural reservoir-a stratigraphic reservoir are developed in sequence, as shown in fig. 2. From the current exploration situation, the existing depression zone has better exploration degree, and the exploration situation that the depression is full and oil is contained is basically realized. And a large amount of reserve blank areas still exist in lithology-structure type oil reservoirs of south slope zones and stratum oil reservoirs at the edge of basin regions. When the exploration is selected, the lithology structure type oil reservoir of the south slope zone reserve blank zone and the stratum oil reservoir at the edge of the basin zone are preferably considered as key anatomical and exploration objects. The key attack and shut-off directions of lithologic-structural oil reservoirs are researches on a deposition system, reservoir prediction and fault plugging property, and the attack and shut-off researches on the aspects of unconformity construction patterns, unconformity structures, oil and gas migration and the like are mainly carried out on marginal stratum oil reservoirs. Therefore, an oil reservoir distribution sequence mode is established through the research of the oil reservoir distribution sequence of the mature exploratory region, the regularity of oil-gas distribution is revealed, the prediction of the oil reservoir type, the oil reservoir master control factor and the attack and shut-off direction is realized, and the exploration selection region is guided.
At step 103, building a refined geological model based on "trinity" (exploratory-development-seismic inversion) anatomy;
and (3) applying exploratory well and exploratory area development well data, combining seismic inversion data, finely comparing, depicting small-layer sand body distribution and establishing a fine geological model.
In step 104, the accumulation condition is 'superimposed evaluation', and accumulation enrichment elements are determined;
under the guidance of a reservoir distribution sequence mode, a corresponding reservoir formation mode is established through pairwise superposition analysis of reservoir distribution and a basic graph (shown in figure 3), typical dissection and quantitative evaluation of a reservoir are found to define a mature exploratory region oil-gas reservoir formation mechanism and define reservoir formation main control factors, and the method is shown in figure 4.
Mainly comprises the following aspects:
(1) constructing, depositing and superposing the oil reservoir, analyzing whether the oil reservoir is controlled by a construction position, a construction pattern, a fault, an unconformity surface and the like, and further determining the type of the oil reservoir; analyzing the control action of sedimentary facies zones, reservoir distribution and reservoir physical properties on the oil reservoir;
(2) superposing the pressure field with the oil reservoir, analyzing and exploring the pressure field characteristics of an oil reservoir distribution area, analyzing the composition of reservoir formation power of a research area, and further analyzing the control effect of pressure on oil and gas migration and reservoir formation;
(3) and (3) overlapping the capping layer with the oil reservoir, analyzing the control effect of the capping layer on trapping, determining the capping mode and the capping mechanism of the oil reservoir according to different types of oil reservoirs, and establishing a corresponding quantitative evaluation method.
(4) And overlapping the oil-bearing property with the oil-bearing property, and analyzing the main control factor of the oil-bearing property of the oil reservoir to form a corresponding quantitative evaluation method. Wherein the Tibetan elements mainly comprise: the method comprises the following key elements of trap type, oil reservoir burial depth, test condition, logging display, formation pressure, reservoir physical property, cap rock property, fault element, oil-containing height and the like.
In step 105, carrying out the analysis of the lost circulation well by 'positive and negative comparison' and determining the blank reason of the reserves;
through the comparative analysis of successful and lost interest exploratory well reservoir-forming elements in the mature exploratory area, as shown in fig. 5, 1-2 successful wells and lost interest wells with different geological conditions and the same other geological conditions are sought to be contrastively analyzed, reservoir-forming main control factors are further implemented, main reasons for blank area formation are summarized, and main problems restricting blank area exploration are found.
106, establishing a blank area exploration key technology aiming at the pertinence customs attack;
through the analysis of the deposit condition of the blank reserve area, the key factors restricting blank area exploration are implemented, on the basis of the adaptability analysis of the existing exploration technology of the reserve area, the targeted technology attack is developed, the adaptive fine exploration matching evaluation technology is formed, and the blank area exploration is guided.
The typical oil reservoir anatomy analysis considers that the key factors for restricting blank area exploration are three factors of accurate implementation of trap, trap effectiveness identification, trap oil-containing height evaluation and the like. Therefore, key technical attack is pertinently developed, fine geological modeling is utilized to realize favorable trapping, and for the developed fault blocking type trapping, the trapping effectiveness is judged mainly by calculating the fault opening and closing performance; by utilizing the superposition result of the oil-bearing height and the reservoir forming factors, carrying out multiple regression on four parameters of a sand body inclination angle, a trap closing height, a physical property index and a fault mud total factor and the oil-bearing height of an oil reservoir, establishing an oil-bearing height prediction model, and carrying out oil-bearing height and oil production capacity evaluation on each effective trap, wherein the evaluation formula is as follows:
Through superposition of different trap accumulation key factors and superposition of related basic graphs, such as superposition of a construction line and sand body thickness, sand body physical properties and a pressure field, favorable traps are preferably evaluated for trap effectiveness, such as quantitative evaluation of the lower physical property limit of trap produced oil, the capping performance of traps, fault opening and closing performance, oil-bearing performance of traps and the like, and further favorable traps are preferably drilled, as shown in FIG. 6.
The invention establishes a fine exploration method of a seven-step walking research idea in a reserve blank area, and provides a method for dissecting the reserve blank area of a mature exploration area of an fractured basin. On the basis of fine exploration of a main oil-bearing layer system of a mature exploration area and on the premise that a geological Parlotto probability model predicts the potential of the residual resources of a blank area, the method establishes a blank area fine geological model through three-in-one (exploration well-development-seismic inversion) fine dissection under the guidance of an oil-gas reservoir distribution orderliness theory. Determining the accumulation enrichment factors through the 'superposition evaluation' of the mature exploratory area accumulation conditions; the positive and negative comparison is based on the analysis of the lost circulation exploratory well, and the cause of the blank area of the reserve volume is determined. And developing targeted attack and establishment of a 'blank area' exploration key technology. Through the 'coupling quantification' characterization of the favorable trapping and accumulation element, key exploration targets are determined, and target optimization and exploration deployment are carried out.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and other equivalents using the spirit of the present invention should fall within the scope of the present invention.
Claims (6)
1. The method for dissecting the blank space of the mature probe region reserve of the depressed area is characterized by comprising the following steps of:
step 1, predicting the potential of residual resources according to a geological Parieton probability model;
step 2, predicting possible oil reservoir types according to the order recognition of oil reservoir distribution;
step 3, establishing a fine geological model based on exploratory well-development well-seismic inversion dissection;
step 4, overlapping and evaluating the accumulation conditions to determine accumulation enrichment factors;
step 5, carrying out analysis on the lost circulation wells in a positive and negative comparison manner, and determining the blank reasons of reserves;
step 6, aiming at the attack, establishing a blank area exploration key technology;
step 7, coupling and quantitatively depicting the trapped and hidden elements to predict a favorable exploration target;
in step 4, under the guidance of an oil reservoir distribution sequence mode, establishing a corresponding reservoir formation mode through pairwise superposition analysis of oil reservoir distribution and a basic graph, finding typical anatomy and quantitative evaluation of an oil reservoir to determine a mature exploratory region oil-gas reservoir formation mechanism and determine reservoir formation main control factors;
step 4 comprises the following steps:
(1) the construction, deposition and oil reservoir distribution are overlapped, whether the oil reservoir is controlled by a construction position, a construction pattern, a fault and an unconformity is analyzed, the type of the oil reservoir is further determined, and the control action of a sedimentary facies zone, the distribution of the oil reservoir and the physical property of the oil reservoir on the oil reservoir is analyzed;
(2) the pressure field is superposed with the oil reservoir distribution, the pressure field characteristics of the oil reservoir distribution area are analyzed and ascertained, the composition of the reservoir forming power of the research area is analyzed, and the control effect of the pressure on oil gas migration and reservoir forming is further analyzed;
(3) the sealing layer is overlapped with the oil deposit distribution, the control effect of the sealing layer on trapping is analyzed, the sealing mode and the sealing mechanism of the oil deposit are determined according to different types of oil deposits, and a corresponding quantitative evaluation method is established;
(4) overlapping the oil-bearing property with the element of the oil deposit, analyzing the main control factor of the oil-bearing property of the oil deposit, and forming a corresponding quantitative evaluation method, wherein the element of the oil deposit comprises the following components: key elements such as trap type, oil reservoir burial depth, logging display, formation pressure, reservoir physical properties, lithology of a sealing cover layer, fault elements and oil-containing height;
in step 6, key factors for restricting blank area exploration are implemented through analysis of reserve blank area accumulation conditions, and on the basis of adaptability analysis of existing exploration technologies of a reserve area, targeted technology attack is carried out to form an appropriate fine exploration matching evaluation technology to guide blank area exploration; through typical oil reservoir anatomy analysis, key factors for restricting blank area exploration are three factors of accurate implementation of trap, trap effectiveness judgment and trap oil-containing height evaluation; the trap is favorably realized by utilizing fine geological modeling, and for the developed fault plugging type trap, the trap effectiveness is judged by calculating the fault opening and closing performance; by utilizing the superposition result of the oil-containing height and the reservoir forming factors, the sand body inclination angle, the trap closing height, the physical index and the fault mud total factor are subjected to multiple regression with the oil-containing height of the oil reservoir, an oil-containing height prediction model is established, the oil-containing height and the oil production capacity of each effective trap are evaluated,
the trap oil content height quantitative prediction formula is as follows:
H＝0.293*h-753.113*w+1.25*θ+29.841*TFG+17.715
in the formula: h-trapped oil height, m; h-trap closure height, m; w-physical index; theta-the sand body inclination angle, °; TFG-total fault mud factor;
in step 7, overlapping of key factors influencing different trap formations and overlapping of related basic graphs, including overlapping of a construction line and sand body thickness, sand body physical properties and a pressure field, is used for preferably evaluating the trap effectiveness of favorable traps, quantitatively evaluating the physical property lower limit of trap oil production, the closing property of traps, the fault opening and closing property and the oil-containing property of traps, and further preferably conducting drilling on favorable traps.
2. The method for clear area dissection of reserve of mature exploratory area of fractured basin according to claim 1, wherein in step 1, for the exploration potential of the clear area of mature exploratory area, a resource assessment is firstly performed on the favorable clear area by a mathematical method to determine whether exploration is worth, and the number and resource amount of oil and gas reservoirs in different scale intervals are predicted by using a paletor probability model under the condition of given residual resource amount to guide exploration decision personnel to explore and deploy.
3. The method for clear area dissection of reserve of a mature exploratory region of a fractured-basin according to claim 1, wherein in step 2, the reservoir distribution orderliness is that in the process of forming and developing the fractured-basin, structural evolution, sedimentary filling and pressure field distribution are taken as the leading factors, and under the control of regional structural activities, the internal construction units, the sedimentary system, the pressure field distribution, the reservoir types, the storage cap generation configuration relationship and the conduction system combination pattern of the basin all have significant regularity, so that the rule that the reservoir distribution has ordered changes is determined, and a unified reservoir distribution whole is formed.
4. The method as claimed in claim 3, wherein in step 2, the sequence recognition of reservoir distribution guides the exploration selection by analyzing the change rule of the sequence of reservoir formation elements and the transportation and gathering modes through the fine recognition of the structure and deposition of the main oil-bearing layer system, so as to reveal the reservoir type and reservoir distribution regularity of the mature exploratory region and develop the targeted attack on the reservoir types possibly existing in the blank reserve area.
5. The method for fractured basin mature exploration area reserve blank area anatomy according to claim 1, wherein in step 3, exploration well and exploration area development well data are applied, seismic inversion data are combined, fine comparison is carried out, small-layer sand body distribution is depicted, and a fine geological model is built.
6. The method for clear zone dissection of mature exploratory area reserves of the fractured basin as claimed in claim 1, wherein in step 5, through the comparative analysis of the successful and the failure exploratory well reservoir formation factors of the mature exploratory area, 1-2 successful wells and failure wells with different geological conditions and the same other geological conditions are found, the reservoir formation main control factors are further implemented, the main reasons for the clear zone formation are summarized, and the main problems restricting the clear zone exploration are found.
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| CN103993862A (en) * | 2014-02-12 | 2014-08-20 | 中国石油天然气股份有限公司 | Layering development method for complex fault block thin oil reservoir |
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| CN107545512A (en) * | 2016-06-29 | 2018-01-05 | 中国石油化工股份有限公司 | Shale oil dessert integrated evaluating method based on dynamic enrichment |
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2018
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103993862A (en) * | 2014-02-12 | 2014-08-20 | 中国石油天然气股份有限公司 | Layering development method for complex fault block thin oil reservoir |
| CN107545512A (en) * | 2016-06-29 | 2018-01-05 | 中国石油化工股份有限公司 | Shale oil dessert integrated evaluating method based on dynamic enrichment |
| CN107422374A (en) * | 2017-04-21 | 2017-12-01 | 中国石油大港油田勘探开发研究院 | A kind of sags rich in oil and gas slope belt fine granularing scalability method |
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| 胜利油区东部探区"十二五"中后期勘探形势与对策;王永诗等;《油气地质与采收率》;20140731;第21卷(第4期);第7-8页 * |
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