CN107143331A - A kind of heterogeneous reservoir oil saturation measurement experiment device - Google Patents
A kind of heterogeneous reservoir oil saturation measurement experiment device Download PDFInfo
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- CN107143331A CN107143331A CN201710492655.9A CN201710492655A CN107143331A CN 107143331 A CN107143331 A CN 107143331A CN 201710492655 A CN201710492655 A CN 201710492655A CN 107143331 A CN107143331 A CN 107143331A
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- CN
- China
- Prior art keywords
- oil saturation
- reservoir
- experimental trough
- measuring head
- experiment device
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
Abstract
The present invention provides a kind of heterogeneous reservoir oil saturation measurement experiment device, is made up of experimental trough case, constant pressure pump, inlet valve, experimental trough box top cover plate, oil saturation measuring head, oil saturation data moment processing routine software terminal；Experimental trough case constitutes a tank by bottom panel and four side plates, and four side plates carry out assembly and disassembly by bolt and bottom panel；Constant pressure pump is embedded in the inlet valve of experimental trough bottom plate by plate, is connected with the reservoir in experimental trough case；Oil saturation measuring head is bolted on the cover plate of experimental trough box top, real-time test data is reached oil saturation data moment processing routine software terminal by oil saturation measuring head by data wire, so as to draw out reservoir moment with respect to oil saturation numerical value.The present invention can simulate the situation of change of anisotropism reservoir oil saturation, and can be with the relation between quantitative assessment reservoir pressure and oil saturation.
Description
Technical field
It is especially different the present invention relates to oil-gas bearing basin heterogeneous reservoir oil saturation quantitative assessment technical field
The physical analogy of the lower oil saturation change of reservoir pressure change, is the remaining oilreserves under the conditions of oil-gas bearing basin High water cut
Calculate, development plan system provides reliable data with adjustment and supported.
Background technology
Reservoir oil saturation is reservoir evaluation and the core content of exploitation, and it can not only improve the standard of reservoir reserve
The accuracy of exactness and oil reservoir quantitative model, and provide important decision parameter for the follow-up exploration and development of oil reservoir.At present really
Determine that oil saturation is direct and accurate method is by being obtained on the basis of oil-base core drilling, sealing core drilling in reservoir
Oil volume occupies the percentage of effect pore volume.Another method is then by interpretation of logging data, capillary pressure curve
Or Wal formula estimation etc. indirect method obtained.These methods can be calculated accurately at the position with well
Oil saturation, but can not reasonably depict the spread of whole oil reservoir oil saturation, especially in anisotropism reservoir
Situation is increasingly complex.
The content of the invention
It is an object of the invention to provide a kind of heterogeneous reservoir oil saturation measurement experiment device, it can simulate not
With the measurement experiment device of heterogeneous reservoir oil saturation spread under reservoir pressure and identical reservoir pressure, so that quantitative
Describe the spatial distribution of oil reservoir oil saturation.
In order to reach above-mentioned purpose, the pressure measxurement experimental provision under a kind of reservoir of present invention offer is heterogeneous, technology
Scheme is：Experimental trough case, constant pressure pump (1-1), inlet valve (1-2), experimental trough box top cover plate (1-3), oil saturation
Measuring head (1-4), oil saturation data moment processing routine software terminal (1-5) composition.
The experimental trough case constitutes a tank by bottom panel (2-1) and four side plates (2-2,2-3,2-4,2-5),
Four side plates carry out assembly and disassembly by bolt and bottom panel；Experimental trough bottom panel (2-1), four side plates (2-2,2-
3rd, 2-4,2-5), must strictly be sealed between experimental trough box top cover plate (1-3), prevent its leak or gas leakage.
The constant pressure pump (1-1) is embedded in experimental trough to ensure the compression pump of reservoir inner pressure constant by plate
The inlet valve (1-2) of bottom plate, is connected with the reservoir in experimental trough case.
The oil saturation measuring head (1-4) is bolted on experimental trough box top cover plate (1-3), oil-containing
Real-time test data is reached oil saturation data moment processing routine software by saturation degree measuring head (1-4) by data wire
Terminal (1-5), so as to draw out the distribution and relative oil saturation numerical value of reservoir moment oil saturation.
Compared to prior art, the invention has the advantages that：
The reservoir of the artificial different physical property of laying can be carried out in apparatus of the present invention, inside experimental trough case, also may be used
The reservoir of physical property gradual change is simulated to carry out natural artifical flume sand body experiment, so as to can both quantify mould there is provided a kind of
The multi-function device of the Heterogeneous reservoir oil saturation simulation of a quasi-simple reservoir, combination reservoir or natural gradual change.
By the way that experimental trough case and top blind flange are sealed, using through top blind flange, into inside reservoir
Real time data measured by oil saturation measuring head, will be a certain by oil saturation data moment processing routine software terminal
The oil reservoir oil saturation at moment carries out moment into figure, can finally set up oil reservoir into the development series of Tibetan, specify oil reservoir into Tibetan
During oil saturation changing rule, especially in heterogeneous reservoir Filling process oil saturation distribution rule
Rule.
Brief description of the drawings
Fig. 1 is heterogeneous reservoir oil saturation measurement experiment device complex chart；
Fig. 2 is experimental trough case front view；
Fig. 3 is experimental trough case top view；
Fig. 4 is that heterogeneous reservoir sandbody permeability is designed and oil saturation measurement experiment result.
In figure：1-1 constant pressure pumps；1-2 is inlet valve；1-3 is experimental trough box top cover plate；1-4 surveys for oil saturation
Try head；1-5 is oil saturation data moment processing routine software terminal；2-1 is experimental trough bottom panel, 2-2,2-3,2-
4th, 2-5 is side plate.4 (a) is (m μm of reservoir sandbody plane permeability2) distribution；4 (b) tests the oil saturation point during 20min
Butut；4 (c) tests oil saturation distribution map during 45min；4 (d) tests oil saturation distribution map during 80min.
Embodiment
Detailed description for the present invention and technology contents, coordinate brief description of the drawings it is as follows, but accompanying drawing only provide reference with
Purposes of discussion, not for being any limitation as to the present invention.
A kind of experimental trough case in heterogeneous reservoir oil saturation measurement experiment device, including experimental trough case
Bottom panel (2-1) and four side plates (2-2,2-3,2-4,2-5), are attached by bolt.Stored up in sink box
Collect the laying of layer, can both carry out artificial reservoir sandbody laying, and also show the anisotropism reservoir sandbody for carrying out nature gradual change.
After reservoir sandbody in sink box is paved, experimental trough box top cover plate (1-3) is bolted on sink box, formed
The container of one opposing seal.
Constant pressure pump (1-1) is embedded in experimental trough bottom to ensure the compression pump of reservoir inner pressure constant by plate
The inlet valve (1-2) of plate, is connected with the reservoir in experimental trough case.When the pressure in reservoir reaches required standard
When, inlet valve (1-2) is closed, similar crude oil reagent joint is changed into, similar crude oil reagent is injected into reservoir sandbody.Oil-containing is satisfied
Experimental trough box top cover plate (1-3), insertion reservoir sandbody are passed through with degree measuring head (1-4).Oil saturation measuring head (1-4)
Oil saturation data moment processing routine software terminal (1-5) is connected to by data wire, so that in real-time rendering reservoir
Oil saturation distribution map.
Embodiment:
This embodiment will be substantially consistent on reservoir sandbody longitudinal direction, and four permeabilities are divided into plane substantially with poor
Permeability highest is 800m μm 2 in different region, four areas, minimum for 60m μm 2, in the storage of the saturating rate of these Relative High Permeabilities
Integrate between sand body with permeability as 40m μm of 2 sand bodies filling (Fig. 4 a), simulation plane, which has, substantially permeates differential sand body oil-containing and satisfy
With the situation of change of degree.Wherein, the aqueous fluid pressure coefficient of reservoir sandbody is designed as 1.05.
To 20min (Fig. 4 b) since experiment, the relatively large region of oil saturation is that permeability is 800m μm2Sand
Body, and to neighbouring permeability be 400m μm2Sand body carry out transition；Meanwhile, it is 200m μm in another maximum permeability2's
Sand body also occurs in that a small amount of similar crude oil reagent.Experiment is carried out to 45min (Fig. 4 c), not only crude oil reagent has occurred in early days
Local oil saturation numerical value continue increase, and maximum permeability be 80m μm2Sand body of the region along the saturating rate of Relative High Permeability
Distribution, the distribution of its oil saturation is in strip, and to maximum permeability be 60m μm2Advanced by leaps and bounds in pointed cone in region.Experiment is carried out
To 80min (Fig. 4 d), whole reservoir sandbody oil saturation distribution is still the big region oil saturation of permeability greatly, infiltration
The small region oil saturation of rate is small, the place that the minimum region of oil saturation has some setbacks for the water exclusion of displacement, therefore oil-containing
Saturation degree is small.
The distribution of reservoir sandbody permeability largely controls the spread of oil saturation in experimental result
Rule.A kind of embodiment of the present invention is the foregoing is only, is not used to limit the scope of the claims of the present invention, other are with the present invention
Patent spirit equivalence changes, all should all belong to the present invention the scope of the claims.
Claims (4)
1. a kind of heterogeneous reservoir oil saturation measurement experiment device, it is characterised in that by experimental trough case, constant pressure pump
(1-1), inlet valve (1-2), experimental trough box top cover plate (1-3), oil saturation measuring head (1-4), oil saturation number
Constituted according to moment processing routine software terminal (1-5).
2. a kind of heterogeneous reservoir oil saturation measurement experiment device according to claim 1, it is characterised in that real
Test sink box and constitute a tank by bottom panel (2-1) and four side plates (2-2,2-3,2-4,2-5), four side plates pass through spiral shell
Bolt carries out assembly and disassembly with bottom panel；Experimental trough bottom panel (2-1), four side plates (2-2,2-3,2-4,2-5), experiments
It must strictly be sealed between sink box top blind flange (1-3), prevent its leak or gas leakage.
3. a kind of heterogeneous reservoir oil saturation measurement experiment device according to claim 1, it is characterised in that institute
Constant pressure pump (1-1) is stated to ensure the compression pump of reservoir inner pressure constant, entering for experimental trough bottom plate is embedded in by plate
Mouth valve (1-2), is connected with the reservoir in experimental trough case.
4. a kind of heterogeneous reservoir oil saturation measurement experiment device according to claim 1, it is characterised in that contain
Oily saturation degree measuring head (1-4) is bolted on experimental trough box top cover plate (1-3), oil saturation measuring head
Real-time test data is reached oil saturation data moment processing routine software terminal (1-5) by (1-4) by data wire, from
And draw out the distribution and relative oil saturation numerical value of reservoir moment oil saturation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710492655.9A CN107143331A (en) | 2017-06-26 | 2017-06-26 | A kind of heterogeneous reservoir oil saturation measurement experiment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710492655.9A CN107143331A (en) | 2017-06-26 | 2017-06-26 | A kind of heterogeneous reservoir oil saturation measurement experiment device |
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| Publication Number | Publication Date |
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| CN107143331A true CN107143331A (en) | 2017-09-08 |
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| CN201710492655.9A Pending CN107143331A (en) | 2017-06-26 | 2017-06-26 | A kind of heterogeneous reservoir oil saturation measurement experiment device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209358A (en) * | 2018-07-26 | 2019-01-15 | 中国石油大学(华东) | It is a kind of for measuring the experimental provision of heterogeneous reservoir oil saturation |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2771856Y (en) * | 2005-02-05 | 2006-04-12 | 赵江青 | Analogue monitoring device for oily saturation field |
| US20120109603A1 (en) * | 2009-06-22 | 2012-05-03 | Ning Li | Quantitative calculation method for oil (gas) saturation of fractured reservoir |
| CN104675394A (en) * | 2015-01-22 | 2015-06-03 | 西南石油大学 | Three-dimensional physical simulation experimental apparatus of heterogeneous bottom-water reservoir and saturation determining method thereof |
| CN105372150A (en) * | 2015-12-07 | 2016-03-02 | 中国地质大学（北京） | Measurement method and apparatus of dynamic capillary pressure curve of oil reservoir |
| CN106837269A (en) * | 2017-03-03 | 2017-06-13 | 中国石油大学(北京) | Low, the extra-low permeability oil reservoirs CO of one kind2Drive nearly miscible pressure area determination method |
-
2017
- 2017-06-26 CN CN201710492655.9A patent/CN107143331A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2771856Y (en) * | 2005-02-05 | 2006-04-12 | 赵江青 | Analogue monitoring device for oily saturation field |
| US20120109603A1 (en) * | 2009-06-22 | 2012-05-03 | Ning Li | Quantitative calculation method for oil (gas) saturation of fractured reservoir |
| CN104675394A (en) * | 2015-01-22 | 2015-06-03 | 西南石油大学 | Three-dimensional physical simulation experimental apparatus of heterogeneous bottom-water reservoir and saturation determining method thereof |
| CN105372150A (en) * | 2015-12-07 | 2016-03-02 | 中国地质大学（北京） | Measurement method and apparatus of dynamic capillary pressure curve of oil reservoir |
| CN106837269A (en) * | 2017-03-03 | 2017-06-13 | 中国石油大学(北京) | Low, the extra-low permeability oil reservoirs CO of one kind2Drive nearly miscible pressure area determination method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209358A (en) * | 2018-07-26 | 2019-01-15 | 中国石油大学(华东) | It is a kind of for measuring the experimental provision of heterogeneous reservoir oil saturation |
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