CN104240153A - Site selection assessment method for water-bearing stratum underground gas storage - Google Patents

Abstract

The invention discloses a site selection assessment method for a water-bearing stratum underground gas storage and belongs to the technical field of natural gas resource exploration and development. The method comprises the steps that suitability degrees corresponding to technical indexes of candidate sites of the water-bearing stratum gas storage are obtained according to the site selection technology, the geology safety, the economy and the social environment characteristic; an analytic hierarchy process is adopted for determining weight values of all the technical indexes; according to the suitability degrees corresponding to all the technical indexes and the weight values of all the technical indexes, the comprehensive storage construction suitability degree of each candidate site of the water-bearing stratum gas storage is obtained; the assessment result is obtained according to a preset classification list of the suitability degrees of the site selection indexes of the water-bearing stratum gas storage. According to the method, the technical principle, the determining method and steps of the site selection of the water-bearing stratum underground gas storage are defined, the measurability is high, and the scientific and reasonable technical method is provided for exploration and construction of the water-bearing stratum gas storage.

Description

A kind of addressing appraisal procedure of aquifer underground storage reservoir

Technical field

The present invention relates to natural gas source exploration and development art field, particularly a kind of addressing appraisal procedure of aquifer underground storage reservoir.

Background technology

Rock gas is as a kind of clean energy resource, and the economy had due to it and the feature of environmental protection, be widely applied at civil area and numerous industrial circles.The use amount of city and other industrial sector rock gases often shows obvious peak value because of the difference in season, owing to having irreplaceable effect on peak regulation and guarantee air feed safety, the construction of underground natural gas storage is subject to the attention of more and more national gradually.

Water-bearing zone gas storage and Gas Storages For Depleted Reservoirs are two important kind of pore type underground natural gas storage, China's hydrocarbon-bearing pool is mainly enriched in Continental Facies Stratigraphy, the scale of hydrocarbon-bearing pool is smaller, the potentiality utilizing Depleted Reservoirs to build underground natural gas storage are subject to certain restrictions, and in Paleozoic marine facies source sedimentary formation, find water-bearing zone trap carry out rock gas construction of storage, be expected to set up huge underground, water-bearing zone rock gas gas storage.Especially near large scale industry down town and big city, not have the exhausted oil gas field being suitable for building underground natural gas storage, but water-bearing zone always can be found to construct, in this case, building Aquifer underground natural gas storage just becomes first-elected scheme.

Current research shows, utilize water-bearing zone to construct no matter reconstruction underground natural gas storage is technical difficulty, the risk of building storehouse, the aspects such as storehouse cycle and investment of still founding a capital are higher than depleted gas reservoir and build storehouse.Building water-bearing zone gas storage is a comprehensive complicated systems engineering, and the selection of location, storehouse restricts by several factors, science, rationally, is effectively very important to construction water-bearing zone, object library location gas storage suitability evaluation.But, still do not have a kind of effective method to carry out scientific and effective assessment to the addressing of aquifer underground storage reservoir in prior art.

Summary of the invention

The problem of scientific and effective assessment cannot be carried out to solve prior art to the addressing of aquifer underground storage reservoir, embodiments providing a kind of addressing appraisal procedure of aquifer underground storage reservoir.Described technical scheme is as follows:

Embodiments provide a kind of addressing appraisal procedure of aquifer underground storage reservoir, described method comprises:

Respectively according to addressing technique, geological security, economy and social environment feature, obtain the suitability degree that the technical indicator in gas storage candidate place, water-bearing zone is corresponding;

Adopt the weighted value of chromatographic assays determination all technical;

The weighted value of the suitability degree corresponding according to described all technical and described all technical, what obtain gas storage candidate place, water-bearing zone comprehensively builds storehouse suitability degree;

According to the water-bearing zone gas storage addressing index suitability degree table of grading preset, obtain assessment result.

Wherein, described technical indicator comprises: Trap Typesof, structure closure, buried depth, cap rock lithology, cap rock breakthrough pressure, water-bearing zone thickness, water-bearing zone factor of porosity, water-bearing zone permeability, gas storage storage capacity, gas storage pressure upper limit.

Preferably, described gas storage pressure upper limit is calculated by following formula:

$\left\{\begin{array}{c}{P}_{\mathrm{mop}}=\min \{P_{\max 1},P_{\max 2}\}\\ P_{\max 1}=P_w+P_d\\ P_{\max 2}={\mathrm{\σ}}_{h\min }\end{array}\right.$

In formula, P _mopfor water-bearing zone gas storage pressure upper limit, P _wfor formation pore pressure above cap rock, P _dfor cap rock breakthrough pressure, σ _hminfor cap rock minimum horizontal principal stress.

Preferably, described gas storage storage capacity is calculated by following formula:

$Q=V\frac{P_{\mathrm{mop}}{T}_0}{p_0\mathrm{TZ}}$

In formula, Q is gas storage storage capacity, and V is water-bearing zone trap volume, T ₀for the temperature of rock gas under standard state, T is water-bearing zone temperature, P ₀for ground standard pressure, Z is gas deviation factor.

Preferably, described Trap Typesof is arch structure;

The structure closure of trap is more than or equal to 100 meters;

The buried depth of trap is within 250 meters ~ 3500 meters scopes.

Described cap rock lithology is pelyte or evaporitic rock;

Described cap rock breakthrough pressure is more than or equal to 1 MPa.

The clean thickness in described water-bearing zone is more than or equal to 10 meters;

Described water-bearing zone factor of porosity is more than or equal to 5%;

Described water-bearing zone permeability is more than or equal to 10 millidarcies.

Further, the weighted value of described employing chromatographic assays determination all technical comprises:

Using aquifer underground storage reservoir addressing as destination layer, addressing technique, geological security, economy and social environment feature are as rule layer, and technical indicator, as evaluation layer, adopts the weighted value of chromatographic assays determination all technical.

Preferably, the storehouse suitability degree of comprehensively building in water-bearing zone gas storage candidate place is calculated by following formula:

$M=\underset{i=1}{\overset{23}{\mathrm{\Σ}}}{\mathrm{\ω}}_i{M}_i$

In formula, M be gas storage candidate place, water-bearing zone comprehensively build storehouse suitability degree, ω _ibe weighted value corresponding to the i-th technical indicator, M _ibe suitability degree corresponding to the i-th technical indicator.

The addressing appraisal procedure of the aquifer underground storage reservoir that the embodiment of the present invention provides, relative to prior art, the present invention adopts site criteria and the computing method of rationality, operating process has obvious accountability, gas storage addressing is made to evaluate scientific and effective more, for the exploration of water-bearing zone gas storage provides scientific and reasonable technical method with construction.

Accompanying drawing explanation

In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, be briefly described by the accompanying drawing used required in describing embodiment below, apparently, the accompanying drawing in the following describes is only some embodiments of the present invention .

Fig. 1 is the method flow diagram of the addressing appraisal procedure of a kind of aquifer underground storage reservoir that the embodiment of the present invention provides;

Fig. 2 is the structural representation of a kind of aquifer underground storage reservoir that the embodiment of the present invention provides;

Fig. 3 is water-bearing zone gas storage Integrate evaluation index level structural drawing;

Fig. 4 is water-bearing zone gas storage addressing factor of evaluation weight histogram;

Fig. 5 is inner smooth depression D5 block Permian system end face structural map;

Fig. 6 is inner smooth depression D5 block top ordovician structural map.

Embodiment

For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.

The addressing appraisal procedure of the aquifer underground storage reservoir that the embodiment of the present invention provides, as shown in Figure 1, comprising:

S101, respectively according to addressing technique, geological security, economy and social environment feature, obtain the suitability degree that the technical indicator in gas storage candidate place, water-bearing zone is corresponding.

The weighted value of S102, employing chromatographic assays determination all technical.

S103, weighted value according to suitability degree corresponding to all technical and described all technical, what obtain gas storage candidate place, water-bearing zone comprehensively builds storehouse suitability degree.

The water-bearing zone gas storage addressing index suitability degree table of grading that S104, basis are preset, obtains assessment result.

Adopt a kind of like this addressing appraisal procedure of aquifer underground storage reservoir, relative to prior art, the present invention adopts site criteria and the computing method of rationality, operating process has obvious accountability, gas storage addressing is made to evaluate scientific and effective more, for the exploration of water-bearing zone gas storage provides scientific and reasonable technical method with construction.

The addressing appraisal procedure of the aquifer underground storage reservoir provided in the practical application embodiment of the present invention is carried out in the process of addressing assessment, and concrete implementation step can be as follows:

(1) water-bearing zone gas storage place primary election, be with basin one-level or secondary building unit for research object, evaluate each basin one-level or secondary building unit stores potentiality and geological reservoir suitability, filter out potential target district.After primary election, multiple potential target district or candidate place may be had, just need afterwards to carry out preferably these candidate places.The place that water layer builds storehouse is preferably research object with trap, by source investigations such as place geologic examination, geophysical survey, probing and well testings, carry out trap, water-bearing zone and cap rock specificity analysis, evaluate the suitability that Trap evaluation stores, calculate geological reservoir potentiality, optimize geological reservoir target area.

The data of gas storage addressing evaluation application is more, and quality and the quantity of available information are more, and evaluation result is more reliable.The data of water-bearing zone gas storage addressing can be divided into 4 classes: 1) surface data: landform, population, environmental protection, Land_use change etc.; 2) infrastructure: pipe network connection, accesibility, electric power for, with the distance etc. of major customer; 3) underground data: exploration data, reservoir properties and cap rock sealing, storage capacity is estimated, performance prediction, fluid properties etc.4) development data: drilling activities in the past, the means of production etc.

(2) water bearing strata formation underground natural gas storage should meet the addressing thinking of " gas is deposited live, note enter, adopt and draw; ground is made decision on the ground; underground is taken into account on the ground ", in the artificial gas reservoir that water-bearing zone is formed, reservoir pressure coefficient generally will more than 1.4, rely on the gases at high pressure injected to be drained by water, its security risk is far above the underground natural gas storage of other types.Gas storage site, water-bearing zone must possess following characteristics: enough large storage volume and can the good cap rock of injection, stronger fault sealing capacity, sealing, stable stratum, tectonic activity agensis, suitable hydrodynamics system, industrial degree of ripeness, infrastructure, the level of economic development, environmental problem, public education and to building the social factors such as storehouse attitude will be considered in addition.Addressing mark evaluation standard is divided into geologic feature, engineering characteristic, the large dimension of society-economic performance three, opinion scale is divided into exclusion standard and suitable condition two class.Gas storage place, water-bearing zone screening principle and standard as shown in table 1.

Gas storage place, table 1 water-bearing zone screening principle and standard

(3) key element of water-bearing zone gas storage addressing is determined from 5 aspects such as gas storage trap structure feature, cap rock condition, fault sealing property, water-bearing zone Reservior Conditions, gas storage parameters.Usually as shown in Figure 2, comprise well 1, note/gas recovery well 2, inspection well 3, wherein, gas storage gas reservoir 5 is between water-bearing zone 4 and cap rock 6, and note/gas recovery well 2 is communicated with gas storage gas reservoir 5 for the structure of aquifer underground storage reservoir.Wherein, the technical indicator as key element mainly comprises: Trap Typesof, structure closure, trap area, buried depth, cap rock bulk parameter, cap rock micro-parameter, laterally plugged fault evaluating, fault vertical sealing ability evaluating, water-bearing zone thickness, water-bearing zone factor of porosity, water-bearing zone permeability, gas storage storage capacity, gas storage pressure upper limit etc.

Preferably, water-bearing zone Trap Typesof is that structure scope is large, form steep, the arch structure that form is complete;

Preferably, the Structural range of water-bearing zone trap is not less than 100m;

Preferably, trap buried depth in water-bearing zone is selected within 250m ~ 3500m;

Preferably, cap rock is pelyte (mud stone, shale) or evaporitic rock (rock salt, gypsum);

Preferably, cap rock has certain gas sealingability, and breakthrough pressure is not less than 1MPa;

Preferably, the clean thickness in water-bearing zone is not less than 10m;

Preferably, the factor of porosity in water-bearing zone is not less than 5%;

Preferably, the permeability in water-bearing zone is not less than 10md;

Preferably, water-bearing zone gas storage pressure upper limit P _mopcalculated by following formula:

$\left\{\begin{array}{c}{P}_{\mathrm{mop}}=\min \{P_{\max 1},P_{\max 2}\}\\ P_{\max 1}=P_w+P_d\\ P_{\max 2}={\mathrm{\σ}}_{h\min }\end{array}\right.$

In formula, P _wfor formation pore pressure above cap rock; P _dfor cap rock breakthrough pressure; σ _hminfor cap rock minimum horizontal principal stress.

Preferably, water-bearing zone gas storage storage capacity Q is calculated by following formula:

$Q=V\frac{P_{\mathrm{mop}}{T}_0}{p_0\mathrm{TZ}}$

In formula, V is water-bearing zone trap volume; T ₀for the temperature of rock gas under standard state; T is water-bearing zone temperature; P ₀for ground standard pressure; Z is gas deviation factor.

(4) principal risk of water-bearing zone gas storage addressing is mainly preservation condition (cap rock and Lateral plugging), trap character (structural trapping) and water-bearing zone condition (reservoir quality) 3 aspects.The maximum pressure of water-bearing zone gas storage is greater than virgin pressure, is generally 1.4 ~ 1.5 times of virgin pressure, and the integrality of trap and sealing ability are the assessment first elements.The priority analyzing addressing data is: 1. trap sealing; 2. storage capacity; 3. reservoir taste, storage capacity; 4. the gas storage degree of depth; 5. the distance of pipe network; 6. surface condition; 7. with the conflicting of periphery underground activities.Be summarized as the factor of 4 aspects such as addressing technique, geological security, economy and social environment condition, built water-bearing zone gas storage addressing assessment indicator system, as shown in table 2.

Table 2 water-bearing zone gas storage addressing technique index system

(5) using water-bearing zone gas storage addressing overall evaluation system as destination layer; 4 factors such as addressing technique, geological security, economy, environmental protection condition are as rule layer; again using 23 of refinement basic indexs as evaluation layer, set up destination hierarchy model, as shown in Figure 3.

Preferably, application level analytic approach (AHP) determines the weighted value of each basic index.

Preferably, according to " 1 ~ 9 " scaling law, research oriented gas storage expert survey can be carried out to obtain relative importance ratio between influence factor at the same level, development of judgment matrix.

Gas storage addressing comprehensive evaluation (B layer) matrix is:

$P_{A-B}=\left[\begin{array}{cccc}1& 2& 5& 3\\ 1/2& 1& 5& 3\\ 1/5& 1/5& 1& 1/3\\ 1/3& 1/3& 3& 1\end{array}\right]$

Weight vector ω _a-B=[0.4600,0.3248,0.0665,0.1486], CR=0.0386 < 0.1, meets condition for consistence.

Addressing technique factor B1 judgment matrix is:

$P_{B1-C}=\left[\begin{array}{cccccc}1& 1/2& 1/3& 3& 2& 1/3\\ 2& 1& 1/2& 5& 2& 1/2\\ 3& 2& 1& 7& 3& 1/2\\ 1/3& 1/5& 1/7& 1& 1/2& 1/9\\ 1/2& 1/2& 1/3& 2& 1& 1/5\\ 3& 2& 2& 9& 5& 1\end{array}\right]$

Weight vector ω _b1-C=[0.1065,0.1664,0.2559,0.0358,0.0720,0.3634], CR=0.013 < 0.1, meets condition for consistence.

Geological security factor B2 judgment matrix is:

$P_{B2-C}=\left[\begin{array}{ccc}1& 1& 1\\ 1& 1& 2\\ 1& 1/2& 1\end{array}\right]$

Weight vector ω _b2-C=[0.3275,0.4126,0.2599], CR=0.046 < 0.1, meets condition for consistence.

Social environmental factor B3 judgment matrix:

$P_{B3-C}=\left[\begin{array}{ccc}1& 1/5& 1/3\\ 5& 1& 3\\ 3& 1/3& 1\end{array}\right]$

Weight vector ω _b3-C=[0.1047,0.637,0.2583], CR=0.033 < 0.1, meets uniform condition.

Economic factors B4 judgment matrix is:

$P_{B4-C}=\left[\begin{array}{cccc}1& 1/5& 1/3& 1\\ 5& 1& 3& 5\\ 3& 1/3& 1& 2\\ 1& 1/5& 1/2& 1\end{array}\right]$

Weight vector ω _b4-C=[0.0979,0.5652,0.2295,0.1073], CR=0.013 < 0.1, meets condition for consistence.

Sealing ability of cap rock C7 judgment matrix is:

$P_{C7-D}=\left[\begin{array}{ccccc}1& 1/2& 1/4& 1/5& 1/9\\ 2& 1& 1& 1& 1/8\\ 4& 1& 1& 1/3& 1/8\\ 5& 1& 3& 1& 1/2\\ 9& 8& 8& 2& 1\end{array}\right]$

Weight vector ω _c7-D=[0.0416,0.105,0.0951,0.2038,0.5545], CR=0.066 < 0.1, meets condition for consistence.

Fault sealing property C8 judgment matrix is:

$P_{C8-D}=\left[\begin{array}{cc}1& 1\\ 1& 1\end{array}\right]$

Weight vector ω _c8-D=[0.50,0.50].

Site stability C9 judgment matrix is:

$P_{C9-D}=\left[\begin{array}{ccc}1& 1& 3\\ 1& 1& 5\\ 1/3& 1/5& 1\end{array}\right]$

Weight vector ω _c9-D=[0.4054,0.4806,0.114], CR=0.025 < 0.1, meets condition for consistence.

Water-bearing zone gas storage addressing overall evaluation system bottom factor is C1 ~ C6, D1 ~ D10 and C10 ~ C16, and total rank order filtering is ω _a-C+D=[0.0490,0.0765,0.1177,0.0165,0.0331,0.1672,0.0044,0.0112,0.0101,0.0217,0.0590,0.0670,0.0670,0.0342,0.0406,0.0096,0.0070,0.0424,0.0172,0.0145,0.0840,0.0341,0.0159], as shown in Figure 4.

(6) water-bearing zone gas storage index suitability degree grading standard is determined, in table 3, so that carry out quantitative analysis to the index of correlation of concrete water-bearing zone gas storage addressing.

Table 3 water-bearing zone gas storage addressing index suitability degree table of grading (1)

Table 3 water-bearing zone gas storage addressing index suitability degree table of grading (2)

Table 3 water-bearing zone gas storage addressing index suitability degree table of grading (3)

Table 3 water-bearing zone gas storage addressing index suitability degree table of grading (4)

(7) in conjunction with gas storage candidate site actual conditions, associative list 3 determines each metrics evaluation value M _i(i=1,2 ..., 23), the storehouse Appropriate M that comprehensively builds in candidate place is calculated by following formula:

$M=\underset{i=1}{\overset{23}{\mathrm{\&Sigma;}}}{\mathrm{\&omega;}}_i{M}_i$

In formula, ω _ibe weighted value corresponding to the i-th technical indicator, M _ibe suitability degree corresponding to the i-th technical indicator.

Appropriate M is brought in table 4 and contrasts, the suitability degree grade of candidate site can be drawn, determine whether to be applicable to building water-bearing zone gas storage.

Table 4 water-bearing zone gas storage addressing comprehensive suitability degree grade evaluation table

For certain gas storage candidate place, water-bearing zone, area in Ji, water-bearing zone gas storage addressing technique and evaluation method are described.

Embodiment 1:

D5 block geographic position is arranged in certain small towns, area, Ji, and earth's surface is Farmland, relates to multiple rural area, and distance gas distributing system 45km, this district belongs to microseismic area, and the disaster such as earthquake, flood did not occur in recent years.Structure is positioned at smooth depression in projection east side, down warping region big city, North China, is constructed, grow along major fault throw wall by the Reverse Draging Anticline of large city east faults control.Ordovician system top and Permian-carboniferous sandstone top antiform clear, major axis trend for east northeast to.

D5 block Permian system trap area is about 12km ², closed amplitude 150m, buried depth of top surface 2285m, see Fig. 5.2-d seismic data quality is better, and the fulfilling degree of trap is 90%, and construct more practicable, tomography is less.Rise time method sandstone 2325-2510m, thick 185m.Tested by 5 pieces of sample of sandstone, recording factor of porosity is 5.25% ~ 11.7%.2325.8m ~ 2503.2m well section electric-log interpretation 10 layers, factor of porosity 7.6% ~ 10.9%, permeability 2.38mD ~ 16.02mD.On sandstone, 2200m-2325m is that mud stone concentrates growth section, and thickness 125m is good cap rock.

Embodiment 2:

D5 block Ordovician system trap area is about 4.1km ², closed amplitude 50m, buried depth of top surface 3075m, see Fig. 6.2-d seismic data quality is general, and the fulfilling degree of trap is low, whether forms the closed performance that effective trap depends on tomography.Ordovician system zone of interest is limestone and pierite mainly, gross thickness 198.6m, factor of porosity 3.5-7.5%, permeability 0.12 ~ 2.0mD; Well testing daily output water 33.7m ³, accumulative product water 111m ³.The Ordovician system is covered Carboniferous system Benxi group-Taiyuan Forma-tion (3047m-3085m) with mud stone, coal petrography for main stratum, thickness 38m is good cap rock.

Carry out conclusion to above-mentioned relevant information and data comprehensive, carry out arrangement screening according to the index parameter needed for the gas storage addressing evaluation of water-bearing zone, the concrete evaluation index value of 2 candidate sites is as shown in table 5.

The table of comparisons 4 is thought, Permian system trap candidate site must be divided into 7.6, belongs to location, suitable storehouse, shows that there is the condition being applicable to building water-bearing zone gas storage this site, and Ordovician system trap candidate site must be divided into 5.97, show that this site is not suitable for building aquifer underground storage reservoir.

Evaluation index	Permian system trap candidate site	Ordovician system trap candidate site
			Water-bearing zone thickness C1	10	10
Water-bearing zone factor of porosity C2	6	6
			Trap volume C3	6	4
Water-bearing zone permeability C4	6	4
			Buried depth C5	6	6
charACTERISTICS OF TRAP C6	10	6
			Cap rock lithology D1	8	8
Depth of cover D2	10	10
			Cap rock continuity D3	8	6
Cranny development D4	8	8
			Gas sealingability D5	8	8
Vertical sealing ability D6	6	4
			Lateral plugging condition D7	6	4
Tectonic movement situation D8	8	6

Regional earthquake characteristics D9	8	8
			Surface geology disaster D10	8	8
Location, storehouse region character C10	8	8
			With freshwater source relation C11	8	8
Public community environment C12	8	8
			Geologic position C13	10	10
Peak modulation capacity C14	8	4
			Old well plugged back C15	8	8
Cost of investment C16	8	8

The suitability degree score of each index in gas storage candidate site, table 5 water-bearing zone

The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (9)

1. an addressing appraisal procedure for aquifer underground storage reservoir, is characterized in that, described method comprises:

Respectively according to addressing technique, geological security, economy and social environment feature, obtain the suitability degree that the technical indicator in gas storage candidate place, water-bearing zone is corresponding;

Adopt the weighted value of chromatographic assays determination all technical;

The weighted value of the suitability degree corresponding according to described all technical and described all technical, what obtain gas storage candidate place, water-bearing zone comprehensively builds storehouse suitability degree;

According to the water-bearing zone gas storage addressing index suitability degree table of grading preset, obtain assessment result.

2. the addressing appraisal procedure of aquifer underground storage reservoir according to claim 1, it is characterized in that, described technical indicator comprises: Trap Typesof, structure closure, buried depth, cap rock lithology, cap rock breakthrough pressure, water-bearing zone thickness, water-bearing zone factor of porosity, water-bearing zone permeability, gas storage storage capacity, gas storage pressure upper limit.

3. the addressing appraisal procedure of aquifer underground storage reservoir according to claim 2, is characterized in that, described gas storage pressure upper limit is calculated by following formula:

$\left\{\begin{array}{c}{P}_{\mathrm{mop}}=\min \{P_{\max 1},P_{\max 2}\}\\ P_{\max 1}=P_w+P_d\\ P_{\max 2}={\mathrm{\&sigma;}}_{h\min }\end{array}\right.$

In formula, P _mopfor water-bearing zone gas storage pressure upper limit, P _wfor formation pore pressure above cap rock, P _dfor cap rock breakthrough pressure, σ _hminfor cap rock minimum horizontal principal stress.

4. the addressing appraisal procedure of aquifer underground storage reservoir according to claim 2, is characterized in that, described gas storage storage capacity is calculated by following formula:

$Q=V\frac{P_{\mathrm{mop}}{T}_0}{p_0\mathrm{TZ}}$

In formula, Q is gas storage storage capacity, and V is water-bearing zone trap volume, T ₀for the temperature of rock gas under standard state, T is water-bearing zone temperature, P ₀for ground standard pressure, Z is gas deviation factor.

5. the addressing appraisal procedure of aquifer underground storage reservoir according to claim 2, is characterized in that,

Described Trap Typesof is arch structure;

The structure closure of trap is more than or equal to 100 meters;

The buried depth of trap is within 250 meters ~ 3500 meters scopes.

6. the addressing appraisal procedure of aquifer underground storage reservoir according to claim 2, is characterized in that,

Described cap rock lithology is pelyte or evaporitic rock;

Described cap rock breakthrough pressure is more than or equal to 1 MPa.

7. the addressing appraisal procedure of aquifer underground storage reservoir according to claim 2, is characterized in that,

The clean thickness in described water-bearing zone is more than or equal to 10 meters;

Described water-bearing zone factor of porosity is more than or equal to 5%;

Described water-bearing zone permeability is more than or equal to 10 millidarcies.

8., according to the addressing appraisal procedure of described aquifer underground storage reservoir arbitrary in claim 1-7, it is characterized in that, the weighted value of described employing chromatographic assays determination all technical comprises:

Using aquifer underground storage reservoir addressing as destination layer, addressing technique, geological security, economy and social environment feature are as rule layer, and technical indicator, as evaluation layer, adopts the weighted value of chromatographic assays determination all technical.

9., according to the addressing appraisal procedure of described aquifer underground storage reservoir arbitrary in claim 1-7, it is characterized in that, the storehouse suitability degree of comprehensively building in gas storage candidate place, water-bearing zone is calculated by following formula:

$M=\underset{i=1}{\overset{23}{\mathrm{\&Sigma;}}}{\mathrm{\&omega;}}_i{M}_i$

In formula, M be gas storage candidate place, water-bearing zone comprehensively build storehouse suitability degree, ω _ibe weighted value corresponding to the i-th technical indicator, M _ibe suitability degree corresponding to the i-th technical indicator.