CN110489892B - Three-phase coupling reservoir structure description technical method - Google Patents
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Abstract
The invention discloses a three-phase coupling reservoir configuration description technical method, which comprises the steps of establishing a rock core-configuration phase, establishing a logging-configuration phase, establishing an earthquake-configuration phase and three-phase coupling reservoir configuration representation and verification. The invention has the beneficial effects that: and D, performing three-phase coupling reservoir configuration characterization and verification, namely integrating research results of the previous three steps, judging the single well configuration of the non-coring well on the basis of the core-configuration phase, establishing a spatial configuration superposition mode of the logging-configuration phase on the basis of the core-configuration phase, realizing spatial characterization of configuration distribution by taking the logging-configuration phase constrained seismic-configuration phase established by methods such as application attribute clustering, seismic waveform indication inversion and the like as a characterization basis, repeatedly demonstrating from a one-dimensional single well to a two-dimensional plane and a section to a three-dimensional space, eliminating contradictions, determining the final reservoir configuration spatial distribution characteristics, verifying the reservoir configuration characterization result through dynamic data, and completing reservoir configuration characterization and verification.
Description
Technical Field
The invention relates to a reservoir configuration description technical method, in particular to a three-phase coupling reservoir configuration description technical method, and belongs to the technical field of reservoir configuration research.
Background
Reservoir configuration research is an important basic work in a high-precision reservoir description reconstruction underground recognition system. The basic data for researching and characterizing the reservoir configuration are numerous, and at present, the reservoir configuration is mostly researched by a single method for characterizing by using a research method of a sedimentary facies. Reservoir configuration research has its own features: different research data and methods need to be selected according to different levels during reservoir configuration research, different data have limitations of the different data, only a certain level configuration unit can be subjected to key research by applying a single method through single data, and other level configuration units cannot be simultaneously and accurately identified; the reservoir formation is used for further refining the sedimentary facies research, although the reservoir formation is controlled by the dense well pattern data, the reservoir formation still has strong multi-solution performance, and whether the research result is accurate or not does not have a reliable verification method at present, so that the phenomenon that different researchers form different research results and cannot unify is caused.
Disclosure of Invention
The invention aims to provide a three-phase coupling reservoir configuration characterization technical method for solving the problems of low accuracy and lack of verification in the configuration research.
The invention realizes the purpose through the following technical scheme: a three-phase coupling reservoir configuration description technical method comprises the following steps:
step A: establishing a rock core-configuration phase on the basis of the rock core fine description result;
and B: establishing a logging-configuration phase by combining logging sedimentology under the guidance of different configuration unit combination modes;
and C: establishing a seismic-configuration phase by using different seismic data application methods on the basis of seismic data;
step D: the reservoir formation theory is taken as a guide, the core-formation phase, the logging-formation phase and the earthquake-formation phase are subjected to three-phase coupling, the formation division result is verified by dynamic data, and reservoir formation space distribution depicting and verification are completed.
Preferably, in order to realize the description of the single-well reservoir configuration by the core data and solve the problem of low accuracy, the core-configuration phase is established in the step A, namely the single-well reservoir configuration is described by the core data, the characteristics of sedimentation, configuration and the like of the configuration units of all levels are determined by core observation, the identification of the single-well configuration units of the coring well is completed, the non-coring well configuration units are further identified by combining logging sedimentology, and the core-configuration phase is established.
Preferably, in order to realize that the logging information describes the spatial reservoir configuration, the logging-configuration phase is established in the step B, namely the spatial reservoir configuration is described through the logging information, and on the basis of the core-configuration phase, a spatial configuration distribution combination pattern is identified according to the difference reflected in a logging curve by different isomorphic unit sedimentary rhythms, lithology, scale, different isomorphic unit combinations and the like, so that the logging-configuration phase is established, and the method mainly comprises glutenite content plane rule statistics, configuration unit combination logging mark identification and the like.
Preferably, in order to realize the description of the spatial reservoir configuration by the seismic data, the seismic-configuration phase is established in the step C, the spatial reservoir configuration is described by the seismic data by using the well logging-configuration phase constraint, the differences of the development scales of different configuration units and the mutual superposition relationship of the different configuration units can cause the differences of the combination form, the waveform, the amplitude and the like of the seismic reflection axis, and the characteristics of the development scales and the superposition relationship of the configuration units can be reflected by the seismic data by using methods such as seismic attribute extraction, forward modeling, inversion, spectral decomposition and the like, so that the seismic-configuration phase constrained by the well logging-configuration phase is established, and the spatial reservoir configuration by the seismic data is realized.
Preferably, in order to repeatedly demonstrate and eliminate contradictions, thereby solving the problem of lack of verification, the three-phase coupling reservoir configuration characterization and verification in the step D, the step is to integrate the research results of the first three steps, realize the single well configuration discrimination of the non-coring well based on the core-configuration phase, establishing a spatial configuration superposition mode of a logging-configuration phase on the basis of the core-configuration phase, the method takes the logging-configuration phase constrained earthquake-configuration phase established by methods of attribute clustering, earthquake waveform indication inversion and the like as a characterization basis to realize the spatial characterization of configuration distribution, repeatedly demonstrates from a one-dimensional single well to a two-dimensional plane, a section to a three-dimensional space, eliminates contradictions, defines the final reservoir configuration spatial distribution characteristics, and verifying the reservoir configuration characterization result through the dynamic data to finish reservoir configuration characterization and verification.
The invention has the beneficial effects that: the three-phase coupling reservoir formation description technical method is reasonable in design, a core-formation phase is established in the step A, the step A is to describe a single-well reservoir formation through core data, the characteristics of deposition, structure and the like of each level of formation units are determined through core observation, the identification of a core-taking single-well formation unit is completed, a non-core-taking well formation unit is further identified by combining logging sedimentology, so that the core-formation phase is established, the main method is to finely describe the core, the description of the single-well reservoir formation configuration by the core data is realized, the logging-formation phase is established in the step B, the step B is to describe a spatial reservoir formation through logging data, and a spatial configuration distribution combination pattern is identified according to the differences reflected in a logging curve such as deposition rhythm, lithology, scale, different structural unit combinations and the like of different structural units on the basis of the core-formation phase, thereby establishing a logging-configuration phase, mainly comprising the methods of glutenite content plane rule statistics, configuration unit combination logging mark identification and the like, realizing the logging data to describe the spatial reservoir configuration, establishing the earthquake-configuration phase in the step C, namely, describing the spatial reservoir configuration by using the earthquake data according to the logging-configuration phase constraint, wherein the differences of the development scale of different configuration units and the mutual superposition relationship thereof can cause the differences of the combination form, the waveform, the amplitude and the like of the earthquake reflection axis, and the development scale and the superposition relationship characteristics of the configuration units can be reflected by using the earthquake data through the methods of earthquake attribute extraction, forward modeling, inversion, spectrum decomposition and the like, thereby establishing the logging-configuration phase constrained by the logging-configuration phase, realizing the description of the spatial reservoir configuration by the earthquake data, and representing and verifying the three-phase coupling reservoir configuration in the step D, the method comprises the steps of integrating research results of the first three steps, realizing single well configuration discrimination of a non-coring well on the basis of a core-configuration phase, establishing a spatial configuration superposition mode of a logging-configuration phase on the basis of the core-configuration phase, realizing spatial depiction of configuration distribution by taking the logging-configuration phase constrained seismic-configuration phase established by methods such as attribute clustering, seismic waveform indication inversion and the like as a characterization basis, repeatedly demonstrating from a one-dimensional single well to a two-dimensional plane and a section to a three-dimensional space, eliminating contradictions, determining final reservoir configuration spatial distribution characteristics, verifying reservoir configuration characterization results through dynamic data, and finishing reservoir configuration depiction and verification.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a core-configuration phase of a small inspection 1 well according to the invention;
FIG. 3 is a schematic diagram of a 6-stage configuration log-configuration phase of the present invention;
FIG. 4 is a schematic diagram of a 7-stage configuration log-configuration phase of the present invention;
FIG. 5 is a schematic diagram of a 8-stage configuration log-configuration phase of the present invention;
FIG. 6 is a schematic diagram of a 6-7 level seismic attribute clustering seismic-configuration facies (planes) of the present invention;
FIG. 7 is a schematic diagram of the 7-8 stage log-formation phase and SMI inversion seismic-formation phase of the present invention;
FIG. 8 is a schematic representation of the reservoir configuration characterization results of the present invention;
FIG. 9 is a schematic diagram illustrating a dynamic data verification configuration partitioning result according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 9, a technical method for describing a three-phase coupling reservoir configuration includes the following steps:
step A: establishing a rock core-configuration phase on the basis of the rock core fine description result;
and B: establishing a logging-configuration phase by combining logging sedimentology under the guidance of different configuration unit combination modes;
and C: establishing a seismic-configuration phase by using different seismic data application methods on the basis of seismic data;
step D: the reservoir formation theory is taken as a guide, the core-formation phase, the logging-formation phase and the earthquake-formation phase are subjected to three-phase coupling, the formation division result is verified by dynamic data, and reservoir formation space distribution depicting and verification are completed.
The method comprises the following steps of establishing a core-configuration phase, wherein a single-well reservoir configuration is carved by core data, the characteristics of sedimentation, structure and the like of each level of configuration units are clarified by core observation, the identification of a core-taking single-well configuration unit is completed, a non-core-taking well configuration unit is further identified by combining logging sedimentology, and the core-configuration phase is established, the core data is finely described to realize the carving of the single-well reservoir configuration by the core data, the logging-configuration phase is established in the step B, the step is to carve the spatial reservoir configuration by the logging data, and a spatial configuration distribution combination pattern is identified according to the difference reflected in a logging curve, such as different structural unit sedimentary rhythms, lithology, scale, different structural unit combinations and the like on the basis of the core-configuration phase, so as to establish the logging-configuration phase, the method mainly comprises the steps of glutenite content plane rule statistics, configuration unit combination logging mark identification and the like, so as to realize the logging information to depict the space reservoir configuration, the seismic-configuration phase is established in the step C, the seismic-configuration phase is constrained by the logging-configuration phase, the space reservoir configuration is depicted by applying the seismic information, the differences of the development scale and the mutual superposition relationship of different configuration units can cause the differences of seismic reflection axis combination form, waveform, amplitude and the like, the configuration unit development scale and the superposition relationship characteristic can be embodied by applying the seismic information through the methods of seismic attribute extraction, forward modeling, inversion, spectral decomposition and the like, so as to establish the logging-configuration phase constrained by the configuration phase and realize the seismic information to depict the space reservoir configuration, the three-phase coupling reservoir configuration characterization and verification in the step D, and the step is to integrate the research results of the previous three steps, the method comprises the steps of realizing single well configuration discrimination of a non-coring well on the basis of a rock core-configuration phase, realizing spatial characterization of configuration distribution by using a logging-configuration phase constrained seismic-configuration phase established by methods such as attribute clustering, seismic waveform indication inversion and the like as a characterization basis, repeatedly demonstrating from a one-dimensional single well to a two-dimensional plane, a section and then to a three-dimensional space, eliminating contradictions, determining final reservoir configuration spatial distribution characteristics, and verifying a reservoir configuration characterization result through dynamic data to finish reservoir configuration characterization and verification.
Step A, establishing a core-configuration phase, wherein in a research area, a 7-level configuration unit in a alluvial fan mainly comprises a flow braid zone and a flow diffusion zone, the whole lithology of the flow braid zone is relatively thick, conglomerate, sandstone and siltstone are mainly used, and a debris flow and traction flow deposition structure can be seen; the SP curve is mostly box-shaped or bell-shaped, the lithology of the overflow zone is thin, the SP curve is mostly argillaceous siltstone, sandy mudstone and mudstone, and the wavy bedding can be seen; the mudstone is mostly blocky, the SP curve is close to the base line, the microelectrode amplitude difference is minimum, the 8-level configuration unit mainly comprises a braided water flow channel, a braided flow sand island, overflowing fine grains and overflowing sand bodies, the lithology of the braided water flow channel is mainly fine conglomerate, coarse sandstone containing gravels and fine sandstone powder, the thickness of each single sand body is 2-6m, the bottom is provided with a scouring surface, the visible grain sequence bedding, the parallel bedding, plant stems distributed in the bedding direction and the gravels with certain rounding are arranged; SP and GR curves are bell-shaped, the amplitude is lower, the lithology of the braided sand island is mainly medium-fine sandstone, argillaceous siltstone, gravel-containing sandstone and the like, the thickness of a single sand body is usually more than 4m, the single sand body has unobvious positive rhythm or homogeneous rhythm, parallel bedding and staggered bedding are developed, and mud and gravel are visible at the bottom of the rhythm; the SP and GR curves are box-shaped, the resistivity amplitude difference is large and smooth, the lithology of the overflowing fine particles is finest, the overflowing fine particles mainly comprise argillaceous siltstone and silty mudstone, and the color is generally grayish green, mauve or variegated; the natural potential curve is close to a mudstone baseline, the microelectrode curve amplitude difference is very small, and the thickness is between 1.2m and 3.1 m; meanwhile, an SP curve return rate (R) is introduced to further assist the characterization of the shale logging phase characteristics:
in the formula, R is SP curve return rate, N1 is an SP curve value of an upper sandstone of an interlayer, N2 is an SP curve value of a lower sandstone of the interlayer, N3 is an SP curve value of the interlayer, the overflow fine grain SP curve return is strong, the return rate is 46% -73%, the overflow sand bodies are less reserved due to frequent diversion of a braided water channel, are generally clamped between overflow fine grain mudstones of thick layers, are unstable in transverse thickness distribution, and have deposition structures with different causes such as incident gravel, stone biological disturbance, parallel bedding and the like in the interior; the overflow sand body natural potential curve is in a middle-low amplitude finger shape, the natural potential curve has a certain amplitude difference, the 9-level configuration unit mainly comprises an accretion body and an interlayer, the accretion body is a maximum single cycle deposition body formed by the change of the water level in a single sand body, the interlayer is fine grain deposition formed by the weakening of the hydrodynamic condition at the top of the single accretion body, the hydrodynamic condition in a research area is strong and frequently changed, the thickness of the single accretion body in a water plaiting pipeline is small and unstable and is between 15cm and 60 m; fine particles deposited on the sand island are not easy to store due to strong water flow scouring, the fine particles are rare, the thickness of the braided sand island accretion is large and stable, the interlayer (silted layer) distribution is very stable and common between 20cm and 1m, the thickness is concentrated on 5cm to 30cm, the SP curve return is weak, the return rate is 18 to 43 percent, and a core-configuration phase (figure 2) is established according to the knowledge;
step B, a logging-configuration phase is established, for 6-level configuration units, the logging-configuration phase is similar to a sedimentary microfacies research, a sandstone percentage content graph (figure 3) of each single sand layer can be drawn through logging data, and then the logging phase is combined to know that a zone with the sandstone content of below 20% is more likely to develop a flood zone and a zone with the sandstone content of above 20% is more likely to develop a braid flow zone, for 7-level configuration units, single braid flow zone logging identification marks in the research zone are summarized, namely the difference of the top elevations of the braid flow zone, the difference of the sizes of braid flow zone sands, discontinuous phase-change sands and the difference of the shapes of logging curves (figure 4), and for 8-level configuration units, four single sand combination patterns are identified, namely, a braid flow channel-braid flow island-braid flow channel, a braid flow channel-braid flow channel, a braid flow channel-island, a braid flow channel-island-flow island, a braid flow channel-flow island, Plait-overflow sand-plait-overflow (fig. 5);
the step C, establishing an earthquake-configuration Phase, establishing the earthquake-configuration Phase by adopting an analysis method based on fuzzy C homogeneous earthquake attribute clustering for 6-7-level configuration units, taking jujube III oil as an example, extracting 16 attributes such as Instantaneous Amplitude Kurtosis (Kurtosis-Instantaneous-Amplitude), Average Instantaneous Phase (Average-Instantaneous-Phase), maximum Energy (Max-Value), Total Amplitude (Total-Amplitude) and Energy Half-decay (Energy-Half-Time) by adopting interlayer extraction and combining with expert experience, respectively calculating correlation coefficients among each attribute, extracting well side channel earthquake attributes by an extraction module, calculating correlation coefficients of sandstone parameters and the well side channel earthquake attributes, finally, three attributes of Instantaneous Amplitude Kurtosis (Kurtosis-Instantaneous-Amplitude), Instantaneous Frequency Slope (Slope-Instantaneous-Frequency) and Reflection intensity Slope (Slope-Reflection-Strength) which are low in correlation with each other and high in correlation with sandstone parameters are selected to participate in FCM attribute clustering, the attribute is limited by the vertical resolution of seismic data, only the attribute among sand groups can be extracted during attribute extraction, and the attribute cannot be accurate to a single sand layer, so that slicing can be performed on multi-attribute clustering results, the inter-well characteristics of the single sand layer can be referred, and finally the results are comprehensively analyzed to obtain 6-7-level seismic-configuration phases (figure 6); for a 7-8 level configuration unit, the seismic-configuration phase is established by adopting seismic waveform indication simulation inversion (SMI) applied to thin-layer development, the method can reflect the phase change characteristics of the reservoir space by fully utilizing the lateral change of the seismic waveform by utilizing the basic principle of the sedimentology, further analyzing the high-frequency structural characteristics of the reservoir vertical lithology combination, and knowing from the inversion section of figure 7-1 and the corresponding well logging interpretation section of figure 7-2, the inversion result can effectively release sand bodies about 10m, corresponding to one or more single sand bodies explained by logging, the superposition relationship of 7-level or even 8-level configuration units in the vertical direction and the splicing relationship in the transverse direction can be carved, certain reference is provided for the spreading range of the sand bodies among wells, and besides, the configuration spreading can be carved by applying the relationship between the seismic amplitude and the single-layer thickness and the like.
D, performing 'three-phase coupling' reservoir configuration characterization and verification, integrating research results of the previous three steps, realizing single well configuration discrimination of a non-coring well on the basis of a core-configuration phase, establishing a spatial configuration superposition mode of a logging-configuration phase on the basis of the core-configuration phase, realizing spatial description of configuration distribution by taking the seismic-configuration phase constrained by the logging-configuration phase established by methods such as attribute clustering, seismic waveform indication inversion and the like as a characterization basis, repeatedly demonstrating, eliminating contradictions, determining final reservoir configuration spatial distribution characteristics, verifying the reservoir configuration characterization results through dynamic data, completing reservoir configuration characterization and verification (figure 8), and completing reservoir configuration characterization and verification due to different permeability of different single sand bodies and seepage barriers existing among the single sand bodies, the effective water injection speed and the water absorption of the injection and production wells in the same single sand body and among different single sand bodies are greatly different, so that the communication of the single sand bodies depicted by the injection and production wells can be verified by analyzing dynamic data such as the effective water injection speed and water absorption data, and the influence of the reservoir structure on the effective water injection is reflected on two aspects, on one hand, if the injection and production wells are in the same single sand body, the effective water injection speed is higher, and in the sand body of the sand island of the same strand of quicksand, water is injected from a small new 6-0 well to a small 5-3-3 well, and the effective speed reaches 11.5 m/d; if the injection and production wells are respectively positioned in the single sand bodies of different types, the effective speed of water injection is lower, and the small and new 6-0 well of the water injection well and the small and 6-1 well of the oil production well are respectively positioned in the braided flow sand island and the braided flow pipeline, the effective speed is 3.9m/d (figure 9), and the reason is considered, firstly, the sand bodies of different types have different seepage capabilities, and the effective speed of water injection is directly influenced; secondly, studies of scholars suggest that a dam channel conversion surface exists between a braided river channel of the braided river and a cardiac beach dam, the formation mechanism of the braided flow sand island is similar to that of the cardiac beach dam, therefore, a low-permeability conversion surface possibly exists between the braided flow river channel and the braided flow sand island to influence the migration of fluid, on the other hand, the effective speed of water injection along the source direction is greater than the effective speed perpendicular to the source direction, as shown in fig. 9, water is injected from a small new 6-0 well to a small 7-1-1 well, and the effective speed of water injection perpendicular to the source direction is only 2.1m/d and is far less than the effective speed along the source direction.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (1)
1. A three-phase coupling reservoir structure depicting technical method is characterized in that: the method comprises the following steps:
step A: establishing a rock core-configuration phase on the basis of the rock core fine description result;
and B: establishing a logging-configuration phase by combining logging sedimentology under the guidance of different configuration unit combination modes;
and C: establishing a seismic-configuration phase by using different seismic data application methods on the basis of seismic data;
step D: taking a reservoir formation theory as a guide, performing three-phase coupling on a rock core-formation phase, a logging-formation phase and an earthquake-formation phase, verifying a formation division result by using dynamic data, and completing reservoir formation space distribution depicting and verifying;
establishing a core-configuration phase in the step A, namely, depicting a single-well reservoir configuration through core data, clearly determining the sedimentation and construction characteristics of each level of configuration units through core observation, completing the identification of the single-well configuration units of the coring well, and further identifying non-coring well configuration units by combining logging sedimentology, thereby establishing the core-configuration phase by means of core fine description;
b, establishing a logging-configuration phase, namely, describing a spatial reservoir configuration through logging information, and identifying a spatial configuration spreading combination pattern according to differences of different isomorphic unit sedimentary rhythms, lithology and scale and different isomorphic unit combinations reflected in a logging curve on the basis of the core-configuration phase, so as to establish a logging-configuration phase, including glutenite content plane rule statistics and a configuration unit combination logging sign identification method;
the step C of establishing the earthquake-configuration phase comprises the steps of describing a space reservoir configuration through earthquake data, enabling the development scale of different configuration units and the difference of the mutual overlapping relationship of the different configuration units to cause the difference of the combination form, the waveform and the amplitude of the earthquake reflection axis, and reflecting the development scale and the overlapping relationship characteristic of the configuration units by applying the earthquake data through earthquake attribute extraction, forward modeling, inversion and spectral decomposition so as to establish the earthquake-configuration phase;
and D, performing three-phase coupling reservoir configuration characterization and verification, namely integrating research results of the previous three steps, describing the spatial configuration distribution according to a core-configuration phase as a basis, a logging-configuration phase as a mode guide, describing the spatial configuration distribution according to an earthquake-configuration phase, and determining the final reservoir configuration spatial distribution characteristic from a one-dimensional single well to a two-dimensional plane, a section and a three-dimensional space, and verifying the reservoir configuration characterization result through dynamic data to finish reservoir configuration description and verification.
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Citations (3)
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|---|---|---|---|---|
| CA2781567A1 (en) * | 2010-04-07 | 2011-10-13 | Precision Energy Services, Inc. | Multi-well interference testing and in-situ reservoir behavior characterization |
| CN107179562A (en) * | 2017-04-27 | 2017-09-19 | 恒泰艾普集团股份有限公司 | Method for predicting reservoir under phased petrophysical model guidance |
| CN109387867A (en) * | 2017-08-10 | 2019-02-26 | 中国石油化工股份有限公司 | A kind of tight sandstone reservoir modeling method |
-
2019
- 2019-08-23 CN CN201910784626.9A patent/CN110489892B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2781567A1 (en) * | 2010-04-07 | 2011-10-13 | Precision Energy Services, Inc. | Multi-well interference testing and in-situ reservoir behavior characterization |
| CN107179562A (en) * | 2017-04-27 | 2017-09-19 | 恒泰艾普集团股份有限公司 | Method for predicting reservoir under phased petrophysical model guidance |
| CN109387867A (en) * | 2017-08-10 | 2019-02-26 | 中国石油化工股份有限公司 | A kind of tight sandstone reservoir modeling method |
Non-Patent Citations (1)
| Title |
|---|
| 基于井震结合的辫状河三角洲前缘构型表征及控制因素;何翠;《中国博士学位论文全文数据库基础科学辑》;20170915(第9期);正文第42-50、67-106、128-130页 * |
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