CN115637960A - Geological engineering optimization research method for unconventional oil gas - Google Patents
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- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000011160 research Methods 0.000 title claims abstract description 29
- 238000005457 optimization Methods 0.000 title claims abstract description 17
- 238000011161 development Methods 0.000 claims abstract description 30
- 230000008901 benefit Effects 0.000 claims abstract description 14
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000010276 construction Methods 0.000 claims abstract description 9
- 238000010586 diagram Methods 0.000 claims abstract description 9
- 239000002253 acid Substances 0.000 claims abstract description 6
- 239000000919 ceramic Substances 0.000 claims abstract description 6
- 239000003292 glue Substances 0.000 claims abstract description 6
- 239000000843 powder Substances 0.000 claims abstract description 6
- 239000004576 sand Substances 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000002689 soil Substances 0.000 claims abstract description 5
- 238000005553 drilling Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 230000009467 reduction Effects 0.000 claims description 5
- 230000035699 permeability Effects 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 52
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 14
- 239000003345 natural gas Substances 0.000 description 7
- 229930195733 hydrocarbon Natural products 0.000 description 3
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- 239000004215 Carbon black (E152) Substances 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The invention discloses a geological engineering optimization research method of unconventional oil and gas, which comprises the steps of determining parameters of a target unconventional oil and gas reservoir, analyzing and comparing parameter relations, accounting cost profits, determining a development mode and determining a final scheme; according to the research of the geological engineering development method of unconventional oil gas, the geological engineering construction parameters with the maximum benefit are determined, the main engineering parameters including the parameters of the horizontal segment length, the anti-drag water consumption, the glue solution consumption, the hydrochloric acid consumption, the soil acid consumption, the powder ceramic consumption, the sand consumption, the single-segment fracturing length, the horizontal segment interval and the like are determined, the unconventional oil gas geological engineering integrated optimization development of the target interval of the research area is realized, the analysis is carried out by combining the research parameters and the like, the cost and the benefit are finally combined, and a model diagram is established for analysis and summary, so that the optimal development method is obtained.
Description
Technical Field
The invention belongs to the technical field of unconventional oil and gas correlation, and particularly relates to a geological engineering optimization research method for unconventional oil and gas.
Background
Unconventional hydrocarbons are resources that cannot be exploited today by conventional methods and techniques. Its advantages are high total resource amount, high requirement to technique, poor physical properties and general air permeability less than 1X 10 -3 μm 2 Porosity < 10%. The resource development needs to have necessary technical and economic conditions. Only by liberating the thought, the oil gas can be liberated, and the unconventional resources are promoted to be converted into the conventional resources. In recent years, global unconventional oil and gas exploration has made a series of major breakthroughs. Dense gas and coal bed gas become key fields of global unconventional natural gas exploration, dense oil becomes a bright spot field of global unconventional oil exploration, and shale gasBecome a hot spot field of global unconventional natural gas exploration. Global unconventional oil and gas exploration and development has made great progress and strategic breakthrough. Especially in north america, natural gas production accounts for 27.2% of the world and has become the largest natural gas producing region of the world. The development of unconventional natural gas in the United states is rapidly developed, and the unconventional gas yield proportion reaches 50%. The total natural gas yield in 1970 of the United states breaks through 6000 multiplied by 10 8 m 3 6400X 10 to reach peak in 1973 8 m 3 The yield continues to decline in 20 years later, and the total yield in 2009 increases to 6000X 10 8 m 3 Mainly the contribution of unconventional natural gas. The first breakthrough was dense gas, followed by coal bed gas, and then shale gas.
In order to safely develop unconventional oil and gas, a technical method is needed to research the unconventional oil and gas, so that an optimized unconventional oil and gas geological engineering development method is formed.
Disclosure of Invention
The invention aims to provide an unconventional oil and gas geological engineering optimization research method, which aims to solve the problem that the unconventional oil and gas is developed safely in the background art, so that a technical method is needed to research the unconventional oil and gas geological engineering optimization research method, and an optimized unconventional oil and gas geological engineering development method is formed.
In order to achieve the purpose, the invention provides the following technical scheme:
a geological engineering optimization research method of unconventional oil and gas comprises the steps of determining parameters of a target unconventional oil and gas reservoir, analyzing and comparing parameter relations, accounting cost and income, determining a development mode and determining a final scheme;
preferably, the step of determining the parameters of the unconventional hydrocarbon reservoir of interest is as follows:
1) Firstly, determining the depth, lithology, permeability, oil-gas saturation, formation pressure and fracture parameter characteristics of the target unconventional oil gas;
2): recording all parameters for uniform summarization;
preferably, the step of analyzing the relation of the contrast parameters is as follows:
1): calculating the oil and gas reserves of the single well by utilizing engineering parameters such as the length of the horizontal well section, the half length of the supporting seam and the like and geological parameters such as the thickness of a target layer, the porosity, the oil and gas saturation and the like, and calculating the oil and gas reserves of the single well by combining corresponding recovery ratio;
2): so as to carry out unified analysis and research on the parameters;
preferably, the steps of accounting for cost benefit are as follows:
1): determining the oil production of an unconventional oil and gas well;
2): combining the oil yield of the single well, the gas yield of the single well, the drilling cost of the single well and the fracturing cost of the single well under the conditions of obtaining the corresponding parameters such as the well spacing, the horizontal segment length and the like, and developing the operating expense and the tax of unconventional oil and gas;
3): integrating the cost and the income, and establishing a model diagram for analysis and summarization;
preferably, the step of determining the development mode is as follows:
according to the parameters, determining geological engineering construction parameters when the benefit is the maximum, determining main engineering parameters including parameters such as horizontal segment length, drag reduction water consumption, glue solution consumption, hydrochloric acid consumption, soil acid consumption, powder ceramic consumption, sand consumption, single-segment fracturing length, horizontal segment interval and the like, and realizing the integrated optimization development of the unconventional oil and gas geological engineering of the target interval of the research area;
preferably, the final scheme determination step is as follows:
1): carrying out unified display analysis on the technical parameters, the cost accounting and the income recording model diagram;
2): and (4) performing unified analysis by combining the determined construction engineering parameters, and finally determining the optimized unconventional oil and gas geological engineering development method.
Preferably, in the parameter collection process of the unconventional oil and gas reservoir, the whole life cycle of the unconventional oil and gas development process needs to be collected and divided into at least one engineering stage, and the at least one engineering stage comprises parameters of a pre-drilling engineering stage, a well cementation engineering stage, a hydraulic fracturing stage and a well completion engineering stage.
Preferably, when the cost benefit is calculated, the type of the power equipment required to be used in each engineering stage, the use time of each power equipment and the energy consumption amount in unit time need to be counted.
Compared with the prior art, the invention provides an unconventional oil and gas geological engineering optimization research method, which has the following beneficial effects:
according to the research of the geological engineering development method of unconventional oil gas, the invention determines the geological engineering construction parameters with the maximum benefit, determines the main engineering parameters including the parameters of horizontal segment length, drag reduction water consumption, glue solution consumption, hydrochloric acid consumption, earth acid consumption, powder ceramic consumption, sand consumption, single-segment fracturing length, horizontal segment spacing and the like, realizes the integrated optimized development of the unconventional oil gas geological engineering of the target interval of the research area, analyzes by combining the research parameters and the like, finally combines the cost and the income, establishes a model diagram for analysis and summarization, and obtains the optimal development method.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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.
The invention provides a technical scheme that:
a geological engineering optimization research method of unconventional oil and gas comprises the steps of determining parameters of a target unconventional oil and gas reservoir, analyzing and comparing parameter relations, accounting cost and income, determining a development mode and determining a final scheme;
further, the steps of determining the parameters of the target unconventional hydrocarbon reservoir are as follows:
1) Firstly, determining the depth, lithology, permeability, oil-gas saturation, formation pressure and fracture parameter characteristics of the target unconventional oil gas;
2): recording all parameters for unified summarization;
the step of analyzing the relation of the contrast parameters comprises the following steps:
1): calculating the oil-gas reserves of a single well by utilizing engineering parameters such as the length of a horizontal well section, the half length of a supporting seam and the like and geological parameters such as the thickness of a target layer, the porosity, the oil-gas saturation and the like, and calculating the oil-gas reserves of the single well by combining corresponding recovery ratio;
2): so as to carry out uniform analysis and research on the parameters;
the steps of accounting the cost and the benefit are as follows:
1): determining the oil production of the unconventional oil and gas well;
2): combining the oil production amount of a single well, the gas production amount of the single well, the drilling cost of the single well and the fracturing cost of the single well under the conditions of obtaining the corresponding parameters such as the well spacing, the horizontal segment length and the like, and developing the operating expense and the tax of unconventional oil and gas;
3): integrating the cost and the income, and establishing a model diagram for analyzing and summarizing;
further, the step of determining the development mode is as follows:
according to the parameters, determining geological engineering construction parameters when the benefit is the maximum, determining main engineering parameters including parameters such as horizontal segment length, drag reduction water consumption, glue solution consumption, hydrochloric acid consumption, soil acid consumption, powder ceramic consumption, sand consumption, single-segment fracturing length, horizontal segment interval and the like, and realizing the integrated optimization development of the unconventional oil and gas geological engineering of the target interval of the research area;
further, the final scheme determination steps are as follows:
1): carrying out unified display analysis on the technical parameters, the cost accounting and the income recording model diagram;
2): and (4) performing unified analysis by combining the determined construction engineering parameters, and finally determining the optimized unconventional oil and gas geological engineering development method.
Furthermore, in the parameter collection process of the unconventional oil and gas reservoir, the whole life cycle of the unconventional oil and gas development process needs to be collected and divided into at least one engineering stage, wherein the at least one engineering stage comprises parameters of a pre-drilling engineering stage, a well cementation engineering stage, a hydraulic fracturing stage and a well completion engineering stage.
Further, when the cost benefit is calculated, the types of the power equipment required to be used in each engineering stage, the use time of each power equipment and the energy consumption amount in unit time need to be counted.
According to the research of the geological engineering development method of unconventional oil and gas, the geological engineering construction parameters with the maximum benefit are determined, the main engineering parameters comprise parameters such as horizontal segment length, drag reduction water consumption, glue solution consumption, hydrochloric acid consumption, soil acid consumption, powder ceramic consumption, sand consumption, single-segment fracturing length and horizontal segment spacing, the unconventional oil and gas geological engineering integrated optimization development of the target interval of the research area is realized, the analysis is carried out by combining the research parameters and the like, the cost and the benefit are finally combined, and a model diagram is established for analysis and summary, so that the optimal development method is obtained.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. A geological engineering optimization research method of unconventional oil gas is characterized by comprising the following steps: the method comprises the steps of determining parameters of a target unconventional oil and gas reservoir, analyzing and comparing parameter relations, accounting cost and income, determining a development mode and determining a final scheme;
the steps of determining the parameters of the target unconventional oil and gas reservoir are as follows:
1) Firstly, determining the depth, lithology, permeability, oil-gas saturation, formation pressure and fracture parameter characteristics of the target unconventional oil gas deposit;
2): recording all parameters for uniform summarization;
the step of analyzing the relation of the contrast parameters is as follows:
1): calculating the oil-gas reserves of the single well by using engineering parameters such as the length of the horizontal well segment, the half length of the supporting seam and the like and geological parameters such as the thickness of a target layer, porosity, oil-gas saturation and the like, and calculating the oil-gas reserves of the single well by combining corresponding recovery ratio;
2): so as to carry out uniform analysis and research on the parameters;
the steps of accounting the cost and the benefit are as follows:
1): determining the oil production of an unconventional oil and gas well;
2): combining the oil yield of the single well, the gas yield of the single well, the drilling cost of the single well and the fracturing cost of the single well under the conditions of obtaining the corresponding parameters such as the well spacing, the horizontal segment length and the like, and developing the operating expense and the tax of unconventional oil and gas;
3): integrating the cost and the income, and establishing a model diagram for analyzing and summarizing;
the steps for determining the development mode are as follows:
according to the parameters, determining geological engineering construction parameters when the benefit is the maximum, determining main engineering parameters including parameters such as horizontal segment length, drag reduction water consumption, glue solution consumption, hydrochloric acid consumption, soil acid consumption, powder ceramic consumption, sand consumption, single-segment fracturing length, horizontal segment interval and the like, and realizing the unconventional oil and gas geological engineering integrated optimization development of the target interval of the research area;
the steps of the final scheme determination are as follows:
1): carrying out unified display analysis on the technical parameters, the cost accounting and the income recording model diagram;
2): and (4) performing unified analysis by combining the determined construction engineering parameters, and finally determining an optimized unconventional oil and gas geological engineering development method.
2. The geological engineering optimization research method of unconventional oil and gas according to claim 1, characterized in that: in the parameter collecting process of the unconventional oil and gas reservoir, the whole life cycle of the unconventional oil and gas development process needs to be collected and divided into at least one engineering stage, wherein the at least one engineering stage comprises parameters of a pre-drilling engineering stage, a well cementation engineering stage, a hydraulic fracturing stage and a well completion engineering stage.
3. The geological engineering optimization research method of unconventional oil and gas according to claim 1, characterized in that: in the accounting of the cost and the income, the types of the power equipment required to be used in each engineering stage, the use time of each power equipment and the energy consumption in unit time need to be counted.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190025461A1 (en) * | 2017-07-21 | 2019-01-24 | Halliburton Energy Services, Inc. | Rock physics based method of integrated subsurface reservoir characterization for use in optimized stimulation design of horizontal wells |
| CN112070331A (en) * | 2019-06-11 | 2020-12-11 | 中国石油天然气集团有限公司 | Greenhouse gas emission amount assessment method and device in unconventional oil gas development process |
| US20210003727A1 (en) * | 2019-07-04 | 2021-01-07 | Chengdu University Of Technology | Optimization design method for volumetric fracturing construction parameters of infilled well of unconventional oil and gas reservoir |
| CN112364518A (en) * | 2020-11-20 | 2021-02-12 | 中国石油大学(华东) | Unconventional oil and gas geological engineering integrated development and operation research optimization quantitative decision method |
| US20210048547A1 (en) * | 2019-08-12 | 2021-02-18 | Southwest Petroleum University | Method for determining the characteristic parameters of stimulation intervals of multi-stage fractured horizontal well in unconventional oil and gas reservoir |
| CN112990629A (en) * | 2019-12-17 | 2021-06-18 | 中国石油化工股份有限公司 | Unconventional oil and gas reservoir exploitation method and system |
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- 2022-09-15 CN CN202211121212.6A patent/CN115637960A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190025461A1 (en) * | 2017-07-21 | 2019-01-24 | Halliburton Energy Services, Inc. | Rock physics based method of integrated subsurface reservoir characterization for use in optimized stimulation design of horizontal wells |
| CN112070331A (en) * | 2019-06-11 | 2020-12-11 | 中国石油天然气集团有限公司 | Greenhouse gas emission amount assessment method and device in unconventional oil gas development process |
| US20210003727A1 (en) * | 2019-07-04 | 2021-01-07 | Chengdu University Of Technology | Optimization design method for volumetric fracturing construction parameters of infilled well of unconventional oil and gas reservoir |
| US20210048547A1 (en) * | 2019-08-12 | 2021-02-18 | Southwest Petroleum University | Method for determining the characteristic parameters of stimulation intervals of multi-stage fractured horizontal well in unconventional oil and gas reservoir |
| CN112990629A (en) * | 2019-12-17 | 2021-06-18 | 中国石油化工股份有限公司 | Unconventional oil and gas reservoir exploitation method and system |
| CN112364518A (en) * | 2020-11-20 | 2021-02-12 | 中国石油大学(华东) | Unconventional oil and gas geological engineering integrated development and operation research optimization quantitative decision method |
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