CN109343145B - Low-permeability tight sandstone gas reservoir enrichment area determination method based on corrected reserve abundance - Google Patents
Low-permeability tight sandstone gas reservoir enrichment area determination method based on corrected reserve abundance Download PDFInfo
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Abstract
A method for determining an enrichment region of a low-permeability tight sandstone gas reservoir based on corrected reserve abundance comprises the following steps: determining the gas production capacities of different layer systems, and performing standardization processing among the layer systems through a layer position based on the highest gas production capacity to obtain the relative gas production capacity of each layer system; correcting the reserve abundance based on the relative gas production capacity of each layer system to obtain the total corrected reserve abundance of the longitudinal layer position of the gas well; and determining the block with the corrected reserve abundance being larger than the reference value as the enrichment region.
Description
Technical Field
The invention relates to a reservoir and enrichment region determining method for petroleum development, which is a method for determining a corrected reservoir abundance enrichment region by combining dynamic and static states by correcting the reservoir abundance based on the reservoir abundance of a reservoir drilled by a gas well by using gas well layered test dynamic data. And more particularly to a method for determining an enrichment region of a low permeability tight sandstone gas reservoir based on corrected reserve abundance.
Background
The hypotonic compact sandstone gas reservoir is one of important gas reservoir types in China, the reserve and the yield both account for about 30% of the total reserve and the total yield of the country, the compact sandstone gas reservoir usually has the characteristics of wide distribution range and strong heterogeneity, the sand body scale, the pore structure, the permeability and the water saturation have larger difference in longitudinal and transverse spreading, and the disposition of a relatively high-yield well through an enrichment area is the most practical way for realizing the benefit development of the gas reservoir. At present, aiming at the determination of a low-permeability compact gas reservoir enrichment area, the reserve abundance of a gas well drilling reservoir position is mainly used as a basis, the verification of production dynamic data response is lacked, the problem that the correlation between the reserve abundance and the dynamic control reserve of the gas well is poor exists, and the determination of the enrichment area is influenced.
Therefore, in order to solve the deficiencies and drawbacks of the prior art, it is necessary to develop a method for determining the enrichment zone of a low permeability tight sandstone gas reservoir based on the corrected abundance of reserves.
Disclosure of Invention
The invention has been made in view of at least one of the above problems, and provides a dynamic and static combination method for improving the reliability of an enrichment region by considering the dynamic data of gas well production to correct the abundance of static reserves, thereby providing technical support for further improving the efficient development of a low-permeability dense gas reservoir.
It should be noted that the gas well dynamic control reserves: the total amount of natural gas which can flow out of a gas reservoir when a gas well is put into production until the formation pressure in the range of natural gas yield and spread is reduced to zero in the process of developing geological reserves under the condition that the existing process technology and the existing well pattern exploitation mode are not changed.
Abundance of reserve, meaning unit area of gas reservoir (A ═ 1 km)2) The reserve of (g) in billions/km2。
According to one aspect of the invention, the main factors influencing the correlation between the reserves abundance of the gas well drilling reservoir position and the dynamically controlled reserves are that the reservoir has a plurality of series of layers in the longitudinal direction, and the effective sand body extension scale and physical property of each series of layers have large difference, so that the difference of the production yield and the pressure drop of the gas well is caused, and finally, the difference of the measured dynamically controlled reserves is caused. To this end, a method for determining an enrichment region based on corrected reserve abundance is established comprising: firstly, determining the gas production capacity of different production layers based on-site production test dynamic data, namely the daily gas production rate of a gas layer with unit thickness; secondly, establishing a quantitative relation among gas production capacities of the multilayer gas layers (selecting the layer system with the maximum gas production capacity as a reference layer system, comparing other layer systems with periods, and carrying out standardized treatment on the thickness of the gas layers); and thirdly, establishing a multilayer system reserve abundance correction model as a key parameter index determined by the enrichment region.
According to another aspect of the invention, a method for determining an enrichment region of a low-permeability tight sandstone gas reservoir based on corrected reserve abundance is provided, which is characterized by comprising the following steps:
measuring the reserve abundance F of each layer system to obtain the reserve abundance Fi of the ith layer,
in the formula: f is the gas reservoir abundance, 108m3/km2(ii) a h is the gas layer thickness, m; Φ is gas layer porosity,%; sgi is the original gas saturation,%; psc is ground standard pressure, MPa; tsc is the ground standard temperature, K; pi is the original formation pressure of the gas reservoir, MPa; t is the average gas layer temperature, K; zi is the original gas deviation coefficient.
According to the field gas well layered production test data, determining the gas production capacity of different layer systems, namely the daily gas production of each layer system in unit thickness;
selecting a layer system with the largest gas production capacity from the longitudinal multilayer systems as a reference layer system, wherein the gas production capacity of the reference layer system is 1, comparing the rest layer systems with the reference layer system, and finishing the standardized treatment of the gas layer thickness in a dividing mode;
obtaining the relative gas production capacity value Q of each layer system according to the production dynamic difference caused by the interlayer differencei' correcting the abundance of reserves to obtain a corrected model:
in the formula: fiAbundance of the i-th layer, 108m3/km2；FXZFor the corrected total reserve abundance including all longitudinal strata, 108m3/km2；Qi' is the relative gas production capacity value of the i-th layer, referred to herein as the correction factor, 104m3/d/m。
Determining corrected reserve abundance FXZBlocks greater than the reference value are enriched regions.
According to another aspect of the invention, the invention also provides a low-permeability tight sandstone gas reservoir mining method based on the corrected reserve abundance, which is characterized by comprising the following steps:
measuring the reserve abundance F of each layer system to obtain the reserve abundance Fi of the ith layer,
in the formula: f is the gas reservoir abundance, 108m3/km2(ii) a h is the gas layer thickness, m; Φ is gas layer porosity,%; sgi is the original gas saturation,%; psc is ground standard pressure, MPa; tsc is the ground standard temperature, K; pi is the original formation pressure of the gas reservoir, MPa; t is the average gas layer temperature, K; zi is the deviation coefficient of the original gas;
according to the field gas well layered production test data, determining the gas production capacity of different layer systems, namely the daily gas production of each layer system in unit thickness;
selecting a layer system with the largest gas production capacity from the longitudinal multilayer systems as a reference layer system, wherein the gas production capacity of the reference layer system is 1, comparing the rest layer systems with the reference layer system, and finishing the standardized treatment of the gas layer thickness in a dividing mode;
obtaining the relative gas production capacity value Q of each layer system according to the production dynamic difference caused by the interlayer differencei' correcting the abundance of reserves to obtain a corrected model:
in the formula: fiAbundance of the i-th layer, 108m3/km2；FXZFor the corrected total reserve abundance including all longitudinal strata, 108m3/km2；Qi' is the relative gas production capacity value of the i-th layer, referred to herein as the correction factor, 104m3/d/m。
Determining corrected reserve abundance FXZThe block larger than the reference value is an enrichment area;
and (5) distributing wells in the enrichment area to extract natural gas.
Compared with the prior art, the invention has the beneficial effects that:
the corrected reserve abundance can better reflect the production dynamic performance of the gas well, so that a more accurate result can be provided in the determination process of the enrichment area, the deployment proportion of a high-yield well can be improved, and the benefit of natural gas exploitation can be improved.
Drawings
FIG. 1 is a plot of well point drilling abundances versus dynamically controlled reserves in accordance with a preferred embodiment of the present invention.
FIG. 2 is a graph comparing the daily gas production capacity per thickness of a gas layer according to a preferred embodiment of the present invention.
FIG. 3 is a diagram of analysis of gas production capacity using mountain 2 segment stratification system as a standard according to a preferred embodiment of the present invention.
FIG. 4 is a plot of modified reserve abundance versus dynamically controlled reserve in accordance with a preferred embodiment of the present invention.
FIG. 5 is a graph of the effect of an enrichment region determination based on corrected reserve abundance according to a preferred embodiment of the present invention.
FIG. 6 is a table comparing the reserve abundance method to the corrected reserve abundance method according to a preferred embodiment of the present invention.
Detailed Description
The best mode for carrying out the present invention will be described in detail with reference to the accompanying drawings, wherein the detailed description is for the purpose of illustrating the invention in detail, and is not to be construed as limiting the invention, as various changes and modifications can be made therein without departing from the spirit and scope thereof, which are intended to be encompassed within the appended claims.
Example 1
Referring to the accompanying drawings 1-6, preferably, the invention provides a method for determining an enrichment region of a low-permeability tight sandstone gas reservoir based on corrected reserve abundance, which is characterized by comprising the following steps:
measuring the reserve abundance F of each layer system to obtain the reserve abundance Fi of the ith layer,
in the formula: f is the gas reservoir abundance, 108m3/km2(ii) a h is the gas layer thickness, m; Φ is gas layer porosity,%; sgi is the original gas saturation,%; psc is ground standard pressure, MPa; tsc is the ground standard temperature, K; pi is the original formation pressure of the gas reservoir, MPa; t is the average gas layer temperature, K; zi is the deviation coefficient of the original gas;
according to the field gas well layered production test data, determining the gas production capacity of different layer systems, namely the daily gas production of each layer system in unit thickness;
selecting a layer system with the largest gas production capacity from the longitudinal multilayer systems as a reference layer system, wherein the gas production capacity of the reference layer system is 1, comparing the rest layer systems with the reference layer system, and finishing the standardized treatment of the gas layer thickness in a dividing mode;
obtaining the relative gas production capacity value Q of each layer system according to the production dynamic difference caused by the interlayer differencei' correcting the abundance of reserves to obtain a corrected model:
in the formula: fiAbundance of the i-th layer, 108m3/km2；FXZFor the corrected total reserve abundance including all longitudinal strata, 108m3/km2；Qi' is the relative gas production capacity value of the i-th layer, referred to herein as the correction factor, 104m3/d/m。
Determining corrected reserve abundance FXZBlocks greater than the reference value are enriched regions.
Preferably, in the formula of reserve abundance F, taking the Shenmu gas field in the Ordos basin as an example, the production zone is 4 gas production zone sections such as 8 sections of boxes, 1 section of mountains, 2 sections of mountains, and the Taiyuan, and in the area, Psc is the ground standard pressure, and MPa is obtained by measurement, and the value is 0.101 MPa; tsc is the ground standard temperature, the degree of Kelvin K, and the value is 293.15K; pi is the original formation pressure of the gas reservoir, Mpa, and takes 29 Mpa; t is the average gas layer temperature K, and the value is 380K; zi is the original gas deviation coefficient, has no dimension, and takes the value of 0.96. Preferably, the other parameters are obtained by logging, which varies from well to well.
Preferably, the invention also provides a low-permeability tight sandstone gas reservoir mining method based on the corrected reserve abundance, which is characterized by comprising the following steps of:
measuring the reserve abundance F of each layer system to obtain the reserve abundance Fi of the ith layer,
in the formula: f is the gas reservoir abundance, 108m3/km2(ii) a h is the gas layer thickness, m; Φ is gas layer porosity,%; sgi is the original gas saturation,%; psc is ground standard pressure, MPa; tsc is the ground standard temperature, K; pi is the original formation pressure of the gas reservoir, MPa; t is the average gas layer temperature, K; zi is the deviation coefficient of the original gas;
according to the field gas well layered production test data, determining the gas production capacity of different layer systems, namely the daily gas production of each layer system in unit thickness;
selecting a layer system with the largest gas production capacity from the longitudinal multilayer systems as a reference layer system, wherein the gas production capacity of the reference layer system is 1, comparing the rest layer systems with the reference layer system, and finishing the standardized treatment of the gas layer thickness in a dividing mode;
obtaining the relative gas production capacity value Q of each layer system according to the production dynamic difference caused by the interlayer differencei' correcting the abundance of reserves to obtain a corrected model:
in the formula: fiRespectively, storage at i-th layerAbundance ratio, 108m3/km2；FXZFor the corrected total reserve abundance including all longitudinal strata, 108m3/km2；Qi' is the relative gas production capacity value of the i-th layer, referred to herein as the correction factor, 104m3/d/m。
Determining corrected reserve abundance FXZThe block larger than the reference value is an enrichment area;
and (5) distributing wells in the enrichment area to extract natural gas.
Preferably, the present invention provides a method for determining an enrichment region based on corrected abundance of reserves, comprising: based on the dynamic data of the field production test, the gas production capacity of different gas production layers, namely the daily gas production rate of the gas production layer with unit thickness is determined; establishing a quantitative relation between gas production capacities of multiple gas layers (selecting the layer system with the maximum gas production capacity as a reference layer system, and comparing other layer systems with periods to perform standardized treatment on the thickness of the gas layer); and establishing a multilayer system reserve abundance correction model as a key parameter index determined by the enrichment region.
Advantageously, the enrichment region determination method based on corrected reserve abundance is formed by integrating static reservoir information and actual production dynamic information drilled by the gas well, the characteristic of poor correlation between the static reserve abundance of the low-permeability dense gas reservoir and the dynamically controlled reserve is improved, the reliability of determination of the low-permeability dense gas reservoir enrichment region and the deployment of efficient development wells are improved, and therefore the gas field capacity construction and continuous production and stable production are effectively guided and supported.
Preferably, referring to fig. 1 and 4, which are regression relationships between the initial drilling reservoir reserve abundance of the gas well and the reserve abundance corrected by the well dynamic data and the dynamic control reserve of the gas well, respectively, it can be seen that the correlation between the reserve abundance corrected by the dynamic data response and the dynamic control reserve of the gas well is greatly improved, and the determination work of the enriched region of the gas field can be more accurately implemented.
Example 2
Referring to fig. 1-6, preferably, the invention provides a method for determining an enrichment region of a low-permeability tight sandstone gas reservoir based on corrected reserve abundance, which is characterized by comprising the following steps:
1. determination of reserve abundance:
in the formula: f is the gas reservoir abundance, 108m3/km2(ii) a h is the gas layer thickness, m; Φ is gas layer porosity,%; sgi is the original gas saturation,%; psc is ground standard pressure, MPa; tsc is the ground standard temperature, K; pi is the original formation pressure of the gas reservoir, MPa; t is the average gas layer temperature, K; zi is the original gas deviation coefficient, and has no dimension.
2. Determining the gas production capacity of different layer systems: according to the field gas well layered production test data, determining the gas production capacity of different layer systems, namely the daily gas production of each layer system in unit thickness, or called the gas production index of the gas production layer meter. Here, taking the deldos joss wood gas field as an example, the total number of layers is 7, which are: h1, H4, H6, H8, S1, S2, T. The corresponding gas production capacities are respectively as follows: q1, Q2, Q3, Q4, Q5, Q6, Q7 (unit is 10)4m3/d/m)。
3. Establishing a quantitative relation among layers: selecting a layer system with the largest gas production capacity from the longitudinal multilayer systems as a reference layer system, for example, selecting S2, wherein the gas production capacity of the reference layer system is 1, comparing the rest layer systems with the reference layer system, and completing the standardization processing of the gas layer thickness by a division mode to obtain the gas production capacities of the layer systems relative to the S2 layer as follows: q1 '═ Q1/Q6, Q2' ═ Q2/Q6, Q3 '═ Q3/Q6, Q4' ═ Q4/Q6, Q5 '═ Q5/Q6, Q6' ═ Q6/Q6 (i.e. 1), Q7 '═ Q7/Q6, (unit 10 ═ Q7' ═ Q7/Q64m3/d/m)。
4. Establishing a multilayer system reserve abundance correction model: according to the production dynamic difference caused by the sufficient consideration of the interlayer difference, the obtained relative gas production capacity values of the layers, namely Q1 ', Q2 ', Q3 ', Q4 ', Q5 ', Q6 ' (═ 1), Q7 ', are corrected, and the reserve abundance is corrected to obtain a correction model (formula):
FXZ＝Q1′×FH1+Q2′×FH4+Q3′×FH6+Q4′×FH8+Q5′×FS1+Q6′×FS2+Q7′×FT
in the formula: fH1、FH4、FH6、FH8、FS1、FS1、FTRespectively H1, H4, H6, H8, S1, S2, reserve abundance of T layer, 108m3/km2；FXZFor the corrected total reserve abundance including all longitudinal strata, 108m3/km2(ii) a Q1 ', Q2 ', Q3 ', Q4 ', Q5 ', Q6 ' (═ 1), Q7 ' are relative gas production capacity values, referred to herein as correction factors, 104m3/d/m。
5. According to corrected reserve abundance FXZAn enrichment zone is determined.
Preferably, the natural gas is further distributed in the enrichment area.
Preferably, referring to fig. 6, through comparing the reserve abundance, the corrected reserve abundance and the gas well dynamic control reserve convergence analysis, the correlation between the corrected reserve abundance and the gas well dynamic control reserve is obviously improved, and the correlation parameter R of the trend line fitting formula is obviously improved2The value is increased from 0.182 before correction to 0.665 after correction, namely, the corrected reserve abundance can better reflect the production dynamic performance of the gas well, so that more accurate index reference can be provided in the process of preferentially determining the enrichment area, and the deployment proportion of the high-yield well is improved.
In conclusion, the beneficial effects of the invention are as follows:
the invention establishes the quantitative corresponding relation of the gas production capacities of different producing zones, carries out accurate thickness standardization treatment, establishes the gas production capacity quantitative relation according to the yield capacity difference of different intervals of the gas well on the basis of measuring the parameters of the porosity, the gas saturation and the like of the gas zone, carries out the thickness standardization treatment, and finally measures the dynamic control reserve and/or the gas leakage area of each layer through layering splitting, thereby providing a basis for the efficient development of the gas field.
The present invention is not limited to the specific embodiments described above. It will be understood that various changes and modifications may be made without departing from the spirit and scope of the invention, which should be considered as within the scope of the invention.
Claims (1)
1. A method for determining an enrichment region of a low-permeability tight sandstone gas reservoir based on corrected reserve abundance is characterized by comprising the following steps of:
measuring the reserve abundance F of each layer system to obtain the reserve abundance Fi of the ith layer,
in the formula: f is the gas reservoir abundance, 108m3/km2(ii) a h is the gas layer thickness, m; Φ is gas layer porosity,%; sgi is the original gas saturation,%; psc is ground standard pressure, MPa; tsc is the ground standard temperature, K; pi is the original formation pressure of the gas reservoir, MPa; t is the average gas layer temperature, K; zi is the deviation coefficient of the original gas;
according to the field gas well layered production test data, the gas production capacity Q of different layer systems i is measurediI.e. daily gas production per unit thickness of each layer system, QiQ for the maximum value in (1)maxRepresents;
selecting a layer system with the largest gas production capacity from the longitudinal multilayer systems as a reference layer system, wherein the gas production capacity of the reference layer system is 1, comparing the rest layer systems with the reference layer system, and finishing the standardized treatment of the gas layer thickness in a dividing mode;
obtaining the relative gas production capacity value Q of each layer system according to the production dynamic difference caused by the interlayer differencei′＝Qi/QmaxAnd correcting the abundance of reserves to obtain a corrected model:
in the formula: fiAbundance of the i-th layer, 108m3/km2；FXZFor the corrected total reserve abundance including all longitudinal strata, 108m3/km2；Qi' is as followsThe relative gassing power value of the i layer, referred to herein as the correction factor, 104m3/d/m；
Determining corrected reserve abundance FXZBlocks greater than the reference value are enriched regions.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102174888A (en) * | 2011-03-03 | 2011-09-07 | 康志勇 | Method for processing formation data based on lithologic parameter of reservoir rock |
| CN102707333A (en) * | 2012-06-06 | 2012-10-03 | 陕西延长石油(集团)有限责任公司研究院 | Shale gas resource/reserve measurement method |
| CN109356577A (en) * | 2018-11-28 | 2019-02-19 | 冀光 | Tight gas reservoir reserves measuring method based on gas-bearing formation Drilling ratio |
| CN109577967A (en) * | 2018-11-28 | 2019-04-05 | 刘秋元 | Recover of Tight Sandstone Gas Reservoir recovery method |
| CN109630103A (en) * | 2018-11-28 | 2019-04-16 | 刘秋元 | Recover of Tight Sandstone Gas Reservoir recovery method based on enrichment region |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040069536A1 (en) * | 2002-09-17 | 2004-04-15 | Rocky Mountain Fluid Technologies, Inc. | Apparatus and method for minimizing solids deposited in a reserve pit |
| CN101236257A (en) * | 2007-02-02 | 2008-08-06 | 天津方联科技发展有限公司 | Oil well location determination technical method |
-
2018
- 2018-11-28 CN CN201811429784.4A patent/CN109343145B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102174888A (en) * | 2011-03-03 | 2011-09-07 | 康志勇 | Method for processing formation data based on lithologic parameter of reservoir rock |
| CN102707333A (en) * | 2012-06-06 | 2012-10-03 | 陕西延长石油(集团)有限责任公司研究院 | Shale gas resource/reserve measurement method |
| CN109356577A (en) * | 2018-11-28 | 2019-02-19 | 冀光 | Tight gas reservoir reserves measuring method based on gas-bearing formation Drilling ratio |
| CN109577967A (en) * | 2018-11-28 | 2019-04-05 | 刘秋元 | Recover of Tight Sandstone Gas Reservoir recovery method |
| CN109630103A (en) * | 2018-11-28 | 2019-04-16 | 刘秋元 | Recover of Tight Sandstone Gas Reservoir recovery method based on enrichment region |
Non-Patent Citations (1)
| Title |
|---|
| 川渝低渗透气藏储量计算参数确定及评价方法(上);张伦友，等;《天然气勘探与开发》;20080930;71-74、78 * |
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