CN107764710A - Based on the fast quick property method of testing to oil-gas Layer - Google Patents
Based on the fast quick property method of testing to oil-gas Layer Download PDFInfo
- Publication number
- CN107764710A CN107764710A CN201610680425.0A CN201610680425A CN107764710A CN 107764710 A CN107764710 A CN 107764710A CN 201610680425 A CN201610680425 A CN 201610680425A CN 107764710 A CN107764710 A CN 107764710A
- Authority
- CN
- China
- Prior art keywords
- permeability
- oil
- mrow
- gas layer
- msub
- 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.)
- Withdrawn
Links
- 238000010998 test method Methods 0.000 title claims abstract description 8
- 230000035699 permeability Effects 0.000 claims abstract description 30
- 238000002347 injection Methods 0.000 claims abstract description 18
- 239000007924 injection Substances 0.000 claims abstract description 18
- 239000011435 rock Substances 0.000 claims abstract description 14
- 230000003247 decreasing effect Effects 0.000 claims abstract description 4
- 239000012530 fluid Substances 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000003350 kerosene Substances 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 2
- 238000004088 simulation Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000011084 recovery Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 238000002474 experimental method Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 28
- 239000005416 organic matter Substances 0.000 description 17
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 5
- 238000011156 evaluation Methods 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000090 biomarker Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/082—Investigating permeability by forcing a fluid through a sample
- G01N15/0826—Investigating permeability by forcing a fluid through a sample and measuring fluid flow rate, i.e. permeation rate or pressure change
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The invention discloses a kind of fast quick property method of testing based on to oil-gas Layer, with different injection rates into rock core injection experimentses fluid, and determine the permeability of rock core under each injection rate, on from the variation relation of injection rate and permeability, judge sensitiveness of the oil-gas Layer rock core to flow velocity, and find out the critical flow velocity that permeability is decreased obviously.This method can be accurately tested the fast quick property of oil-gas Layer, the blocked phenomenon of venturi is reduced, production efficiency is improved, solves in existing recovery process and these infringements are not tested, damaged after causing oil-gas Layer exploitation a period of time so that the problem of production efficiency is affected.
Description
Technical field
The present invention relates to a kind of method, more particularly, to a kind of fast quick property method of testing based on to oil-gas Layer.
Background technology
Oil gas is adjointOilGas from oil well out, main component areMethane, ethane etc..As fuel and chemical industry
Raw material.Oil-gas generation has following condition, first, to see organic matter quantity in source bed number, commonly referred to as " organic matter is rich
Degree ".The organic carbon content wherein remained is mainly determined, to determine an area whether there is source bed, how many source bed, and it
Be divided into by certain standard, medium and poor source bed, carry out evaluation of classification.Second, to see organic in source bed
The quality of matter quality, commonly referred to as " organic matter type ".According to biological source, the kerogen of Oil source bed is divided into three major types.
The first kind is sapropelic organic matters, and biological source is mainly the plankton in water, is I type kerogens, and category is top-quality
Organic matter.Second class is rotten plant type organic matter, and biological source is mainly higher plant, is type III kerogen, belongs to second-rate
Organic matter.3rd class is mixed type organic matter therebetween, is II type kerogens, is the preferable organic matter of quality.It is real
Room is tested by the analysis result to sample, a regional organic matter type is determined by certain standard, to the quality of organic matter
Make evaluation.3rd, it is gentle to see whether organic matter has generated oil, commonly referred to as " maturity of organic matter ", when possessing
The organic matter of certain amount and quality is changed into after oil under certain conditions.In other words, if not possessing generation oil
" duration and degree of heating ", organic matter at most, be desirably also without what real value.So the maturity of research organic matter is critically important
A ring.The information that analyze data is provided, the temperature course that organic matter undergoes in underground can be reflected indirectly.According to these numbers
According to, maturity be divided into immature, oil generation peak, moisture, dry gas (dry gas refers to that its origin cause of formation is relevant with oil, and containing ethane with
On heavy hydrocarbon it is seldom, the flammable natural gas of methane content more than 95%.It is close with this as the composition of biogas and coal-type gas, but
The origin cause of formation is different, shoulds be regarded as a different matter.) etc. four-stage.What stage of ripeness evaluation organic matter is in, and people can be told on some ground
Area is advantageous for oil prospecting or gas finding.4th, to see that the oil of generation or gas are from that source bed, commonly referred to as " oil sources
Contrast ".I.e. after oil gas is found, oil gas and oil source rock are carried out pair with " fingerprint compound " (or biomarker)
Than, explore the affiliation between oil source rock and oil gas, research institute's generation it is oily it is gentle be from that source bed.It is not difficult to think
As, there is provided the source bed of oil sources is more, and oil sources is abundanter, to forming oil gas field just advantageously.In oil-gas Layer recovery process,
Potential infringement easily be present, these infringements are not tested in traditional recovery process, cause oil-gas Layer to exploit one section
Damaged after time so that production efficiency is affected.
The content of the invention
It is an object of the invention to overcome in above-mentioned existing recovery process not test these infringements, oil gas is caused
Layer damages after exploitation a period of time so that the problem of production efficiency is affected, devises a kind of based on to oil-gas Layer
Fast quick property method of testing, this method can be accurately tested the fast quick property of oil-gas Layer, reduce the blocked phenomenon of venturi,
Improve production efficiency, solve in existing recovery process and these infringements do not tested, cause oil-gas Layer exploitation one section when
Between after damage so that the problem of production efficiency is affected.
The purpose of the present invention is achieved through the following technical solutions：Based on the fast quick property method of testing to oil-gas Layer, with difference
Injection rate into rock core injection experimentses fluid, and determine the permeability of rock core under each injection rate, from injection rate with
On the variation relation of permeability, sensitiveness of the oil-gas Layer rock core to flow velocity is judged, and find out the critical flow that permeability is decreased obviously
Speed, using flow Qi-1Corresponding permeability Ki-1, with flow QiCorresponding permeability KiMeet following formula：
Illustrate speed sensitive, flow Q has occurredi-1As critical flow；
The calculating of the extent of damage sees below formula：
In formula, kmax--- the maximum in permeability variation curve in each permeability point, μ2；
kmin--- the minimum value in permeability variation curve in each permeability point, μ2；
For producing well, by the use of kerosene as Experimental Flowing Object, and require kerosene first passing through drying, then it is removed with carclazyte
In polar substances, then with G5 sand cores funnel filter；For water injection well, stratum water (or the mould Jing Guo filtration treatment should be used
Intend stratum water) it is used as Experimental Flowing Object.
In summary, the beneficial effects of the invention are as follows：This method can be accurately tested the fast quick property of oil-gas Layer,
The blocked phenomenon of venturi is reduced, production efficiency is improved, solves in existing recovery process and these infringements are not tested,
Damaged after causing oil-gas Layer exploitation a period of time so that the problem of production efficiency is affected.
Embodiment
With reference to embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited only to
This.
Embodiment：
Based on the fast quick property method of testing to oil-gas Layer, with different injection rates into rock core injection experimentses fluid, and
Determine the permeability of rock core under each injection rate, from the variation relation of injection rate and permeability on, judge oil-gas Layer rock core
To the sensitiveness of flow velocity, and the critical flow velocity that permeability is decreased obviously is found out, using flow Qi-1Corresponding permeability Ki-1, with stream
Measure QiCorresponding permeability KiMeet following formula：
Illustrate speed sensitive, flow Q has occurredi-1As critical flow；
The calculating of the extent of damage sees below formula：
In formula, kmax--- the maximum in permeability variation curve in each permeability point, μ2；
kmin--- the minimum value in permeability variation curve in each permeability point, μ2；
For producing well, by the use of kerosene as Experimental Flowing Object, and require kerosene first passing through drying, then it is removed with carclazyte
In polar substances, then with G5 sand cores funnel filter；For water injection well, stratum water (or the mould Jing Guo filtration treatment should be used
Intend stratum water) it is used as Experimental Flowing Object.
This method can be accurately tested the fast quick property of oil-gas Layer, reduce the blocked phenomenon of venturi, and raising is opened
Efficiency is adopted, solves in existing recovery process and these infringements is not tested, is gone out after causing oil-gas Layer exploitation a period of time
Now damage so that the problem of production efficiency is affected.
It is described above, be only presently preferred embodiments of the present invention, any formal limitation not done to the present invention, it is every according to
Any simply modification, the equivalent variations substantially made according to the technology of the present invention, method to above example, each fall within the present invention
Protection domain within.
Claims (1)
1. based on the fast quick property method of testing to oil-gas Layer, it is characterised in that：Injected in fact into rock core with different injection rates
Test fluid, and determine the permeability of rock core under each injection rate, from the variation relation of injection rate and permeability on, judge oil
Gas-bearing formation rock core finds out the critical flow velocity that permeability is decreased obviously to the sensitiveness of flow velocity, using flow Qi-1Corresponding permeability
Ki-1, with flow QiCorresponding permeability KiMeet following formula：
<mrow>
<mfrac>
<mrow>
<msub>
<mi>k</mi>
<mrow>
<mi>i</mi>
<mo>-</mo>
<mn>1</mn>
</mrow>
</msub>
<mo>-</mo>
<msub>
<mi>k</mi>
<mi>i</mi>
</msub>
</mrow>
<msub>
<mi>k</mi>
<mrow>
<mi>i</mi>
<mo>-</mo>
<mn>1</mn>
</mrow>
</msub>
</mfrac>
<mo>*</mo>
<mn>100</mn>
<mi>%</mi>
<mo>&GreaterEqual;</mo>
<mn>5</mn>
<mi>%</mi>
</mrow>
Illustrate speed sensitive, flow Q has occurredi-1As critical flow；
The calculating of the extent of damage sees below formula：
In formula, kmax--- the maximum in permeability variation curve in each permeability point, μ2；
kmin--- the minimum value in permeability variation curve in each permeability point, μ2；
For producing well, by the use of kerosene as Experimental Flowing Object, and require kerosene first passing through drying, then it is therein with carclazyte removing
Polar substances, then filtered with G5 sand cores funnel；For water injection well, stratum water (or the simulation ground Jing Guo filtration treatment should be used
Layer water) it is used as Experimental Flowing Object.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610680425.0A CN107764710A (en) | 2016-08-17 | 2016-08-17 | Based on the fast quick property method of testing to oil-gas Layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610680425.0A CN107764710A (en) | 2016-08-17 | 2016-08-17 | Based on the fast quick property method of testing to oil-gas Layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107764710A true CN107764710A (en) | 2018-03-06 |
Family
ID=61260434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610680425.0A Withdrawn CN107764710A (en) | 2016-08-17 | 2016-08-17 | Based on the fast quick property method of testing to oil-gas Layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107764710A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109470617A (en) * | 2018-11-08 | 2019-03-15 | 西南石油大学 | A kind of quick experimental evaluation method of Fractured compact sandstone gas layer fluid speed |
-
2016
- 2016-08-17 CN CN201610680425.0A patent/CN107764710A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109470617A (en) * | 2018-11-08 | 2019-03-15 | 西南石油大学 | A kind of quick experimental evaluation method of Fractured compact sandstone gas layer fluid speed |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Rabbani et al. | An experimental study of acidizing operation performances on the wellbore productivity index enhancement | |
| CN103926186B (en) | A kind of method that quantitative evaluation water filling affects throat distribution | |
| Akbarzadeh et al. | Asphaltenes—problematic but rich in potential | |
| CN109991123B (en) | Geochemical evaluation method for mobility of shale oil resources | |
| CN103510933B (en) | A kind of method for quantitatively evaluating of imbibition agent imbibition oil recovery effect | |
| Tian | Experimental study on stress sensitivity of naturally fractured reservoirs | |
| CN104047600A (en) | Well log interpretation method for hydrocarbon reservoir | |
| CN109612897B (en) | Quantitative evaluation method for influence of sewage reinjection on physical properties and pore throat distribution of compact sandstone | |
| Liu et al. | Quantitative study of CO2 huff-n-puff enhanced oil recovery in tight formation using online NMR technology | |
| Buriro et al. | Asphaltene prediction and prevention: A strategy to control asphaltene precipitation | |
| Esmaeili et al. | Correlations for effect of temperature on oil/water relative permeability in clastic reservoirs | |
| Liu et al. | Working fluid-induced formation damage evaluation for commingled production of multi-layer natural gas reservoirs with flow rate method | |
| CN107764710A (en) | Based on the fast quick property method of testing to oil-gas Layer | |
| Oskui et al. | Systematic approach for prevention and remediation of asphaltene problems during CO2/hydrocarbon injection project | |
| Tiong-Hui et al. | Decoding Interwell Tracer Data Using Novel Analytical Approach to Optimise Waterflood Management in a Complex Oil Rim Field, in Offshore East Malaysia | |
| US11414979B2 (en) | Well injection program including an evaluation of sandface plugging | |
| Sherwood et al. | Compound-specific stable isotope analysis of natural and produced hydrocarbon gases surrounding oil and gas operations | |
| CN107764971A (en) | Based on the method to the quick property test evaluation of oil-gas Layer alkali | |
| Shen et al. | Optimization Strategy to Reduce Asphaltene Deposition-Associated Damage During CO 2 Huff-n-Puff Injection in Shale | |
| Qu et al. | Experimental Study on the Effect of Long‐Term Water Injection on Micropore Structure of Ultralow Permeability Sandstone Reservoir | |
| CN105606516A (en) | Method for testing and evaluating alkali sensitivity of hydrocarbon reservoir | |
| CN111827994B (en) | Method for explaining sandstone oil-water layer by using gas measurement of percentage of total hydrocarbon and humidity ratio of hydrocarbon component | |
| CN109854215B (en) | Method for finely classifying acidized water injection wells | |
| Qing-Fu | Laboratory investigation of the influence of fractures on CO2 flooding | |
| CN107764711A (en) | Based on the method to the quick property test evaluation of oil-gas Layer alkali |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180306 |
|
| WW01 | Invention patent application withdrawn after publication |