CN102519853A - Calculating method of porosity lower limit of recovery industry for effective reservoir under pore structure restraint - Google Patents
Calculating method of porosity lower limit of recovery industry for effective reservoir under pore structure restraint Download PDFInfo
- Publication number
- CN102519853A CN102519853A CN2011103964490A CN201110396449A CN102519853A CN 102519853 A CN102519853 A CN 102519853A CN 2011103964490 A CN2011103964490 A CN 2011103964490A CN 201110396449 A CN201110396449 A CN 201110396449A CN 102519853 A CN102519853 A CN 102519853A
- Authority
- CN
- China
- Prior art keywords
- extraction industry
- effective reservoir
- permeability
- lower limit
- effective
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention relates to a calculating method of a porosity lower limit of a recovery industry for an effective reservoir under pore structure restraint. According to the calculating method disclosed by the invention, on the basis of classification of the pore structures, porosity lower limits of the recovery industry under the restraint of different pore structures are calculated, and the problem that the porosity lower limit of the recovery industry for the effective reservoir is influenced by the pore structures is solved. According to the calculating method disclosed by the invention, the porosity lower limits of the recovery industry for different effective reservoirs are calculated for reservoirs with different pore structures, and thus the accuracy for calculating the porosity lower limit of the recovery industry for the effective reservoir is increased.
Description
Technical field
The invention belongs to oil and gas exploration and development field, particularly a kind of effective reservoir extraction industry porosity cutoff acquiring method under the pore texture constraint.
Background technology
Effectively reservoir extraction industry rerum natura lower limit is meant and can preserves and the seepage flow fluid, and can extraction under the existing processes technical conditions has the lowest porosity that the reservoir had and the permeability of commercial value production fluid amount (hydro carbons or with the water of hydro carbons with volume).It is to invade on the basis that methods such as method, factor of porosity-permeability intersection, productivity simulation experimental method, production capacity method calculate in the different depth of burial scopes effectively reservoir extraction industry factor of porosity and permeability lower limit at comprehensive utilization method of testing, empirical statistics method, smallest effective pore throat radius method, formation testing method, distribution function curve method, oil-containing occurrence method, irreducible water saturation method, relative permeability method, drilling fluid that existing effective reservoir extraction industry rerum natura lower limit is asked for technology; The functional equation of effective reservoir extraction industry factor of porosity (or permeability) lower limit of match and buried depth, and then calculate effective reservoir extraction industry rerum natura lower limit under any degree of depth.But; This technology is not considered the influence of pore texture to effective reservoir extraction porosity cutoff; Under the identical situation of other factors, because RESERVOIR PORE STRUCTURE is different, the corresponding a plurality of effective reservoir extraction industry porosity cutoffs of same effective reservoir extraction industry permeability lower limit.Along with improving constantly of oil-gas exploration degree, increasingly high to the accuracy requirement of effective reservoir extraction industry rerum natura lower limit, art methods can not meet the demands.Need the effective more accurately reservoir extraction industry of development rerum natura lower limit to ask for technology.
Summary of the invention
The object of the invention is primarily aimed at the shortcoming of prior art, and a kind of problem that influences that solves pore texture to effective reservoir extraction industry porosity cutoff is provided.
Technical scheme of the present invention is: the down effective reservoir extraction industry of a kind of pore texture constraint porosity cutoff acquiring method, and described step is following:
(1) according to concrete study area data situation; Select to be fit to effective reservoir extraction industry permeability lower limit computing method of study area; Ask for the effective reservoir extraction industry of different buried depth scope permeability lower limit; The funtcional relationship of effective reservoir extraction industry permeability lower limit of match and buried depth, and utilize this funtcional relationship to obtain the effective reservoir extraction industry permeability cutoff under any degree of depth;
(2) utilize pressure mercury data, carry out the pore texture classification; On the basis of RESERVOIR PORE STRUCTURE classification, simulate the funtcional relationship between different pore structures types of reservoir K/ Φ and the K respectively, and confirm K and K/ Φ interval range that each pore texture types of reservoir is corresponding;
(3) with effective reservoir extraction industry permeability cutoff of being tried to achieve under any degree of depth; K and the K/ Φ interval range corresponding according to the different pore structures types of reservoir; The funtcional relationship of substitution K/ Φ and K; Can try to achieve the effective reservoir extraction industry porosity cutoff under this pore texture type constraint, and then set up the funtcional relationship of the effective reservoir extraction industry porosity cutoff of different pore structures type and the degree of depth;
Wherein: K--permeability, Φ--factor of porosity.
Preferably: the effective reservoir extraction industry permeability lower limit computing method of described suitable study area comprise that method of testing, empirical statistics method, smallest effective pore throat radius method, formation testing method, distribution function curve method, oil-containing occurrence method, irreducible water saturation method, relative permeability method, drilling fluid invade at least a in method, factor of porosity-permeability intersection, productivity simulation experimental method, the production capacity method.
Beneficial effect of the present invention is: the present invention has asked for the extraction industry porosity cutoff under the constraint of different pore structures type on the basis of pore texture classification, solved the influence problem of pore texture to effective reservoir extraction industry porosity cutoff.Like the effective reservoir extraction industry rerum natura lower limit result of Fig. 2 for utilize prior art to ask in the somewhere, Fig. 3 is the industrial rerum natura lower limit of the pore texture constraint extraction down result who utilizes the present invention to ask for.Contrast two figure can find out that this method has been asked for different effective reservoir extraction industry porosity cutoff to the different pore structures types of reservoir, thereby have improved the accuracy that effective reservoir extraction industry porosity cutoff calculates.
Description of drawings
The down effective reservoir extraction industry of Fig. 1 pore texture constraint porosity cutoff is asked for techniqueflow chart
The effective reservoir extraction industry rerum natura lower limit result of Fig. 2 for utilize prior art to ask in the somewhere
Fig. 3 utilizes the industrial rerum natura lower limit of the pore texture constraint extraction down result that the present invention asks for
Effective reservoir, Fig. 4 somewhere extraction industry permeability lower limit and depth relationship
Fig. 5 somewhere pore texture classification transitivity concerns fitted figure
Effective reservoir extraction industry porosity cutoff under the pore texture type constraint of Fig. 6 somewhere
Embodiment
Below in conjunction with description of drawings embodiment of the present invention:
Asking for of extraction industry rerum natura lower limit with under the constraint of Shengli Oil Field somewhere pore texture is the concrete technical scheme that example is explained this invention:
First; Adopt formation testing method, irreducible water saturation method, smallest effective pore throat radius method, distribution function curve method; Ask for effective reservoir extraction industry permeability lower limit (table 1) under the different buried depth; The funtcional relationship (Fig. 4) of effective reservoir extraction industry permeability lower limit of match and buried depth, and utilize this funtcional relationship to obtain the effective reservoir extraction industry permeability cutoff under any degree of depth.
Effective reservoir extraction industry permeability lower limit under the different buried depth of table 1 somewhere
| Method | Push up dark/m | The end, is dark/m | Degree of depth intermediate value/m | Permeability lower limit/md |
| Method of |
3000 | 3400 | 3200 | 1 |
| The distribution function method | 2500 | 3000 | 2750 | 1.62181 |
| The |
3000 | 3500 | 3250 | 0.749894209 |
| Minimum pore throat radius method | 2500 | 3200 | 2850 | 1.83 |
| The |
2900 | 3100 | 3000 | 1 |
| The |
3100 | 3300 | 3200 | 1 |
| The |
3300 | 3500 | 3400 | 0.51 |
The second, utilize and press the mercury data, according to replacement pressure (P
d) and capillary pressure intermediate value (P
50) etc. parameter carry out pore texture classification, simulate the funtcional relationship (Fig. 5) between different pore structures types of reservoir K/ Φ and the K respectively, and confirm K and K/ Φ interval range (table 2) that all kinds of pore texture types of reservoir are corresponding.
The permeability range that table 2 somewhere different pore structures type is corresponding
| The pore throat structure type | Permeability range/10 -3μm 2 | K/ Φ scope |
| IA | ?＞228 | ＞14.64 |
| IB | ?2.92-304 | 0.218-18.077 |
| IIA | ?0.1-50.48 | 0.0123-2.723 |
| IIB | ?0.0289-2.486 | 0.0056-0.164 |
| IIIA | ?0.0181-0.97 | 0.00337-0.109 |
| IIIB | ?＜0.133 | ＜0.105 |
The 3rd; With effective reservoir extraction industry permeability lower limit of being tried to achieve under any degree of depth; K and the K/ Φ interval range corresponding according to the different pore structures types of reservoir; The funtcional relationship of substitution K/ Φ and K can be tried to achieve the effective reservoir extraction industry porosity cutoff (Fig. 6) under this pore texture type constraint.
Claims (2)
1. a pore texture retrains down effective reservoir extraction industry porosity cutoff acquiring method, and described step is following:
(1) according to concrete study area data situation; Select to be fit to effective reservoir extraction industry permeability lower limit computing method of study area; Ask for the effective reservoir extraction industry of different buried depth scope permeability lower limit; The funtcional relationship of effective reservoir extraction industry permeability lower limit of match and buried depth, and utilize this funtcional relationship to obtain the effective reservoir extraction industry permeability cutoff under any degree of depth;
(2) utilize pressure mercury data, carry out the pore texture classification; On the basis of RESERVOIR PORE STRUCTURE classification, simulate the funtcional relationship between different pore structures types of reservoir K/ Φ and the K respectively, and confirm K and K/ Φ interval range that each pore texture types of reservoir is corresponding;
(3) with effective reservoir extraction industry permeability cutoff of being tried to achieve under any degree of depth; K and the K/ Φ interval range corresponding according to the different pore structures types of reservoir; The funtcional relationship of substitution K/ Φ and K; Can try to achieve the effective reservoir extraction industry porosity cutoff under this pore texture type constraint, and then set up the funtcional relationship of the effective reservoir extraction industry porosity cutoff of different pore structures type and the degree of depth;
Wherein: K--permeability, Φ--factor of porosity.
2. the down effective reservoir extraction industry of pore texture as claimed in claim 1 constraint porosity cutoff acquiring method is characterized in that: effective reservoir extraction industry permeability lower limit computing method of described suitable study area comprise that method of testing, empirical statistics method, smallest effective pore throat radius method, formation testing method, distribution function curve method, oil-containing occurrence method, irreducible water saturation method, relative permeability method, drilling fluid invade at least a in method, factor of porosity-permeability intersection, productivity simulation experimental method, the production capacity method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103964490A CN102519853A (en) | 2011-12-05 | 2011-12-05 | Calculating method of porosity lower limit of recovery industry for effective reservoir under pore structure restraint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103964490A CN102519853A (en) | 2011-12-05 | 2011-12-05 | Calculating method of porosity lower limit of recovery industry for effective reservoir under pore structure restraint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102519853A true CN102519853A (en) | 2012-06-27 |
Family
ID=46290849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103964490A Pending CN102519853A (en) | 2011-12-05 | 2011-12-05 | Calculating method of porosity lower limit of recovery industry for effective reservoir under pore structure restraint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102519853A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748016A (en) * | 2012-07-10 | 2012-10-24 | 中国石油大学(华东) | Geologic history period sandstone reservoir porosity evolution recovery method |
| CN103775057A (en) * | 2013-12-27 | 2014-05-07 | 中国石油天然气股份有限公司 | Method and device for identifying effective reservoir of tight oil and gas reservoir |
| CN103926632A (en) * | 2013-01-10 | 2014-07-16 | 中国石油大学(北京) | Method for determining hydrocarbon accumulation threshold of hydrocarbon containing basin fragmentary rock |
| CN104213913A (en) * | 2014-07-24 | 2014-12-17 | 中国石油大学(华东) | Method for calculating effective exploitation permeability lower limits of low-permeability clastic rock reservoir |
| CN104564041A (en) * | 2014-07-24 | 2015-04-29 | 中国石油大学(华东) | Low-permeability clastic rock reservoir effectiveness evaluation method based on development permeability lower limit |
| CN104806232A (en) * | 2014-07-31 | 2015-07-29 | 吴见萌 | Method for determining carbonate reservoir porosity cutoff |
| CN105628580A (en) * | 2015-12-21 | 2016-06-01 | 中国石油大学(华东) | Reservoir false crack identification and physical property correction method |
| CN106021788A (en) * | 2016-05-31 | 2016-10-12 | 中国石油大学(华东) | Tight reservoir grading evaluation standard partition method based on pore throat structure characteristics |
| CN103926632B (en) * | 2013-01-10 | 2016-11-30 | 中国石油大学(北京) | A kind of method determining the oil-gas bearing basin clastic rock Hydrocarbon Formation Reservoirs lowest limit |
| CN106383078A (en) * | 2016-09-20 | 2017-02-08 | 中国石油天然气股份有限公司 | Method and device for determining water drive efficiency of rock |
| CN112731544A (en) * | 2020-12-22 | 2021-04-30 | 中国石油大学(华东) | Method for identifying shale texture combination type based on machine supervised learning |
| CN113176186A (en) * | 2021-03-22 | 2021-07-27 | 中国地质大学（武汉） | Method for judging carbonate rock crude oil injection pressure and pore throat lower limit |
| CN114370269A (en) * | 2022-01-05 | 2022-04-19 | 成都理工大学 | Comprehensive determination method for lower limit of physical property of effective reservoir of deep carbonate gas reservoir |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050021234A1 (en) * | 2003-07-22 | 2005-01-27 | Dianli Han | Method for producing full field radial grid for hydrocarbon reservoir simulation |
| CN101413792A (en) * | 2008-12-05 | 2009-04-22 | 西北有色金属研究院 | Porous material pore space boundary extracting and quantization method |
-
2011
- 2011-12-05 CN CN2011103964490A patent/CN102519853A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050021234A1 (en) * | 2003-07-22 | 2005-01-27 | Dianli Han | Method for producing full field radial grid for hydrocarbon reservoir simulation |
| CN101413792A (en) * | 2008-12-05 | 2009-04-22 | 西北有色金属研究院 | Porous material pore space boundary extracting and quantization method |
Non-Patent Citations (3)
| Title |
|---|
| 侯雨庭 等: "西峰油田有效厚度下限研究", 《中国石油勘探》 * |
| 郭睿: "储集层物性下限值确定方法及其补充", 《石油勘探与开发》 * |
| 黄思静等: "砂岩孔隙成因对孔隙度/ 渗透率关系的控制作用", 《成都理工大学学报（自然科学版）》 * |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748016B (en) * | 2012-07-10 | 2014-10-08 | 中国石油大学(华东) | Geologic history period sandstone reservoir porosity evolution recovery method |
| CN102748016A (en) * | 2012-07-10 | 2012-10-24 | 中国石油大学(华东) | Geologic history period sandstone reservoir porosity evolution recovery method |
| CN103926632B (en) * | 2013-01-10 | 2016-11-30 | 中国石油大学(北京) | A kind of method determining the oil-gas bearing basin clastic rock Hydrocarbon Formation Reservoirs lowest limit |
| CN103926632A (en) * | 2013-01-10 | 2014-07-16 | 中国石油大学(北京) | Method for determining hydrocarbon accumulation threshold of hydrocarbon containing basin fragmentary rock |
| CN103775057A (en) * | 2013-12-27 | 2014-05-07 | 中国石油天然气股份有限公司 | Method and device for identifying effective reservoir of tight oil and gas reservoir |
| CN104213913A (en) * | 2014-07-24 | 2014-12-17 | 中国石油大学(华东) | Method for calculating effective exploitation permeability lower limits of low-permeability clastic rock reservoir |
| CN104564041A (en) * | 2014-07-24 | 2015-04-29 | 中国石油大学(华东) | Low-permeability clastic rock reservoir effectiveness evaluation method based on development permeability lower limit |
| CN104564041B (en) * | 2014-07-24 | 2017-06-06 | 中国石油大学(华东) | Hyposmosis clastic reservoir rock efficiency evaluation method based on exploitation permeability limits |
| CN104806232A (en) * | 2014-07-31 | 2015-07-29 | 吴见萌 | Method for determining carbonate reservoir porosity cutoff |
| CN104806232B (en) * | 2014-07-31 | 2017-09-29 | 中石化西南石油工程有限公司测井分公司 | A kind of method for determining porosity lower limit of fracture |
| CN105628580A (en) * | 2015-12-21 | 2016-06-01 | 中国石油大学(华东) | Reservoir false crack identification and physical property correction method |
| CN105628580B (en) * | 2015-12-21 | 2018-04-13 | 中国石油大学(华东) | Reservoir baste identifies and physical property bearing calibration |
| CN106021788A (en) * | 2016-05-31 | 2016-10-12 | 中国石油大学(华东) | Tight reservoir grading evaluation standard partition method based on pore throat structure characteristics |
| CN106021788B (en) * | 2016-05-31 | 2017-06-30 | 中国石油大学(华东) | A kind of compact reservoir grading evaluation criteria division methods based on pore throat character feature |
| CN106383078A (en) * | 2016-09-20 | 2017-02-08 | 中国石油天然气股份有限公司 | Method and device for determining water drive efficiency of rock |
| CN106383078B (en) * | 2016-09-20 | 2019-05-07 | 中国石油天然气股份有限公司 | Method and device for determining water drive efficiency of rock |
| CN112731544A (en) * | 2020-12-22 | 2021-04-30 | 中国石油大学(华东) | Method for identifying shale texture combination type based on machine supervised learning |
| CN112731544B (en) * | 2020-12-22 | 2022-07-15 | 中国石油大学(华东) | Method for identifying shale texture combination type based on machine supervised learning |
| CN113176186A (en) * | 2021-03-22 | 2021-07-27 | 中国地质大学（武汉） | Method for judging carbonate rock crude oil injection pressure and pore throat lower limit |
| CN114370269A (en) * | 2022-01-05 | 2022-04-19 | 成都理工大学 | Comprehensive determination method for lower limit of physical property of effective reservoir of deep carbonate gas reservoir |
| CN114370269B (en) * | 2022-01-05 | 2023-06-16 | 成都理工大学 | Comprehensive determination method for physical property lower limit of effective reservoir of deep carbonate reservoir |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102519853A (en) | Calculating method of porosity lower limit of recovery industry for effective reservoir under pore structure restraint | |
| CN110206522B (en) | Shale gas reservoir fracturing horizontal well fracturing fluid flowback simulation method | |
| CN107038268B (en) | Method for determining water flooding wave sum coefficient of heterogeneous reservoir five-point well pattern | |
| CN103939066B (en) | An a kind of note adopts the method that well group determines water injection rate determination oilwell produced fluid amount more | |
| CN103452543B (en) | Method for manufacturing fractured horizontal well pattern model and fractured horizontal well pattern model | |
| MY160152A (en) | Reservoir upscaling method with preserved transmissibility | |
| SA517381776B1 (en) | Measuring Inter-Reservoir Cross Flow Rate Between Adjacent Reservoir Layers from Transient Pressure Tests | |
| CN105424912A (en) | Movable slope-varying-type steel trough for simulating soil leakage status in karst region | |
| CN108104806A (en) | Remaining Oil Distribution quantitative analysis method | |
| CN107290259A (en) | The computational methods of the effective seepage flow pore throat radius of low permeability sandstone reservoirs | |
| CN108222909B (en) | Shale gas well repeated fracturing well selection evaluation method | |
| GB2572273A8 (en) | Coupled reservoir-geomechanical models using compaction tables | |
| CN104594880A (en) | Artificial sand filling mould pipe for oil field experiment | |
| CN103334740B (en) | Consider the method for the determination drainage front of free-boundary problem | |
| CN108932397A (en) | A kind of Double Porosity Reservoir numerical simulation parameter adjustment method | |
| CN104679986B (en) | A kind of detection method for Polymer Flooding Reservoirs non-homogeneous degree | |
| CN104453807A (en) | Judging method of water drive fluid channeling of oilfield injection and production well group | |
| CN104564004A (en) | Well spacing method for developing tight sand-mud rock reservoir seam network fracturing | |
| CN106930759A (en) | A kind of Forecasting Methodology of low permeability sandstone reservoir production capacity | |
| CN105042264A (en) | Circulation water channel | |
| CN205482735U (en) | U type pressure oil pipe detection tool | |
| CN105608272A (en) | Pore zone division method for clastic rock reservoir in petroliferous basin | |
| CN205145262U (en) | A compact heap that is used for dropping funnel puncture ware air inlet seat's switch cover device | |
| CN110778314A (en) | Reasonable mechanical recovery system efficiency measuring and calculating method based on oil reservoir conditions | |
| MX355814B (en) | Completion assembly and methods for use thereof. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120627 |