CN202946151U - Device for simulating and evaluating reservoir damage caused by working fluid - Google Patents
Device for simulating and evaluating reservoir damage caused by working fluid Download PDFInfo
- Publication number
- CN202946151U CN202946151U CN 201220683249 CN201220683249U CN202946151U CN 202946151 U CN202946151 U CN 202946151U CN 201220683249 CN201220683249 CN 201220683249 CN 201220683249 U CN201220683249 U CN 201220683249U CN 202946151 U CN202946151 U CN 202946151U
- Authority
- CN
- China
- Prior art keywords
- simulating
- fluid
- reservoir
- entry well
- estimating device
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model provides a device for simulating and evaluating reservoir damage caused by working fluid. The device comprises a fluid precise injection evaluating system, a visual and closed simulation test system, a data acquisition system and a computer information process system, wherein the fluid precise injection evaluating system and the data acquisition system are respectively connected with the starting end and the tail end of the visual and closed simulation test system, and the data acquisition system is further simultaneously connected with the computer information process system. The utility model provides a test device capable of freely combining and in-real-time simulating reservoir damage of various wells with the complex structures caused by working fluid according to the similarity theory; and through information acquisition and information process devices such as a pressure sensor, a temperature sensor and a photomicroscope, the damage information of the working fluid on a reservoir is collected, various methods for removing the damage of a fluid on the reservoir are evaluated, and the theoretical basis is provided for the protection of an oil layer.
Description
Technical field
The utility model relates to a kind of entry well fluid to the injury simulating-estimating device of reservoir, the reservoir damage experimental facilities of especially a kind of low-permeability oil deposit fracturing fluid to straight well and horizontal well.
Background technology
Reservoir damage mainly refers in drilling well, completion, production, volume increase, oil formation improvement and improving any process of recovery ratio, because of the borehole wall or hydrocarbon stratum aqueous fluid seepage channel blocked, cause reservoir permeability or oil gas water to permeability impairment and affect the phenomenon of oil-water well production capacity.If oil-gas Layer suffers damage, its consequence can affect single well productivity, thereby brings huge economic loss for the exploration and development of oil.Become gradually the main battle ground of oil field development stable yields along with offshore oilfield and low-permeability oil deposit; reservoir protection is had higher requirement; the leakage of working fluid, fracturing fluid to low permeability reservoir etc. injury in the urgent need to a cover simulation device Study In Reservoir injury, determine extent of injury.
The injury of the main evaluation entry well fluid by the rock core displacement test macroscopic view of at present working fluid injury to reservoir, can not visual observation entry well fluid to injury and the distribution of entry well fluid in inhomogeneous formation of reservoir.
Publication number 1525154, the application for a patent for invention document of open day 2004-09-01 discloses the micro-oil and gas flow mechanism of a kind of transmission and reservoir damage analyzer, is comprised of printing opacity rock permeability thin slice, single petrographic microscope, conoscope, CCD camera, image pick-up card, pressure sensor, pressure acquisition card, intermediate receptacle, computer, constant speed pump, image analysis system, liquid trap.Wherein constant speed pump is by the pipe fitting that is rigidly connected, valve and intermediate receptacle, pressure sensor, and printing opacity rock permeability thin slice connects; The rock permeability thin slice is fixed on the petrographic microscope objective table, and single polarisation sees through the infiltration thin slice through conoscope; Image in CCD camera collection petrographic microscope provides image information by image pick-up card for computer; The pressure acquisition card imports pressure information into computer; Use image analysis system to process gathering image.Reproduce generation, the evolution of various phenomenons in experiment by visual graphical analysis means, obtain timely and accurately the information of Formation damage mechanism and extent of injury aspect, many-sided, as to represent at many levels reservoir rocks feature and seepage flow mechanism and reservoir damage relation; The impact of each factor such as reservoir hole and throat character, outside fluid etc. on seepage flow mechanism and reservoir damage.Oil and gas flow mechanism and Formation damage qualitative and quantitative study have been realized, expand the carcinogenesis of human of field, reproduction oil and gas flow mechanism and the reservoir damage of reservoir of oil and gas research, provide a new technological means for estimating reservoir, announcement seepage flow mechanism and reservoir damage mechanism.
By above open source literature, on structure, simulation degree is true to nature not, also rest on the fluid dropping liquid on the technological means of rock section, naturally the experiment injury data of learning at last also just can't be brought to us and more approach actual evaluation reference, moreover each device is comparatively backward, can not provide sound assurance for integral experiment, and automaticity is inadequate.And experimentation is complicated, can't the various fluid of follow-on test to the injury of reservoir.
In view of this; for the problems referred to above; a kind of entry well fluid reservoir damage simulating-estimating device reasonable in design is proposed; this device is simulated working fluid to reservoir damage according to the theory of similarity; the injury of real-time observation entry well fluid to reservoir; optimize the working fluid relevant parameter, improve the technological measures such as pressure break, be of great significance for improving oilfield reservoir resist technology tool.
Summary of the invention
The purpose of this utility model is to provide a kind of entry well fluid reservoir damage simulating-estimating device, can be according to the experimental facilities of theory of similarity independent assortment real-time Simulation working fluid to the reservoir damage of various complex structural wells.Gather entry well fluid to the wounding signal of reservoir by the information gathering such as pressure sensor, temperature pick up, microimaging and information processor, estimate various releasing fluids to the method for reservoir damage, for oil layer protection provides theoretical foundation.
The purpose of this utility model can be achieved by the following technical measures:
This entry well fluid reservoir damage simulating-estimating device comprises estimates the accurate injected system of fluid, visual airtight simulated testing system, data collecting system, computer information processing system; The accurate injected system of described evaluation fluid and data collecting system are connected to top and the terminal of visual airtight simulated testing system, and described data collecting system also is connected with computer information processing system simultaneously.
The purpose of this utility model also can be achieved by the following technical measures:
Described visual airtight simulated testing system comprises pit shaft analogue means, reservoir simulating device, and described reservoir simulating device arranges at least two groups and is fastened on respectively on the pit shaft analogue means.Described pit shaft analogue means integral body is L-type, is is namely connected and composed by straight well pit shaft analogue means and horizontal well pit shaft analogue means.There is airtight thermostatic control system in the described reservoir simulating device outside all cover.Described data collecting system comprises temperature and pressure sensor, micro-imaging acquisition system, and described temperature and pressure sensor setting is connected at reservoir simulating device and with computer information processing system; Described micro-imaging acquisition system packaged type is suspended on visual airtight simulated testing system top and is connected with computer information processing system.The side of described visual airtight simulated testing system also is provided with to provide the packaged type pickup-light source of light source to the micro-imaging acquisition system.The end of described pit shaft analogue means is provided with relief valve.The accurate injected system of described evaluation fluid comprises interconnective thrust piston cylinder and precise injection pump, described precise injection pump also is connected with the pump work media Containers, the pump work media Containers is connected with the liquid feeding end of precise injection pump, is used for providing working media to the precise injection pump.Described thrust piston cylinder is comprised of many groups piston rod, every group of piston rod pack into the different evaluation fluid media (medium) and respectively with estimate fluid means and be connected, the different fluid media (medium) of described evaluation fluid means splendid attire, be connected with many groups piston rod cavity volume of thrust piston cylinder by pipeline, be used for providing different evaluation fluid media (medium)s to many groups piston rod cavity volume of thrust piston cylinder; Many group piston rods adopt parallel-connection structure, and an end is connected with the supercharging outlet of precise injection pump with hydraulic line, is used for providing supercharging to the thrust piston cylinder, and the other end connects visual airtight simulated testing system with pipeline.Described thrust piston cylinder all is equipped with control valve with each pipe joint that evaluation fluid means, precise injection pump, visual airtight simulated testing system are connected respectively.
The utlity model has following beneficial effect:
Entry well fluid reservoir damage simulating-estimating device has automation, modularization; precision, serialization, the characteristics such as visual; strengthen the function of reservoir protection research experiment, can simulate the experiment of the extent of injury under different temperatures to different porous medias of different entry well fluids by this device.
This device adopts modular unit combination, can simulate the Various Complex structure wells such as straight well, horizontal well, reservoir simulating device is also taked modularization, can realize simulating the Different Plane heterogeneous body and see the heterogeneous body situation with layer, can the distribution of visual observation fluid in difference simulation reservoir.
Utilize optical system for collecting, intuitively observe the continuous change procedure of fluid, improved efficient.
Can simulate the mixing injury after multiple fluid enters simulation medium.
Description of drawings:
Fig. 1 is the structural representation of the utility model embodiment.
In figure: 1-estimates fluid means, 2-precise injection pump, 3-pump work media Containers, 4-thrust piston cylinder, 5-pit shaft analogue means, 6-thermostatic control system, 7-reservoir simulating device, 8-temperature and pressure sensor, 9-relief valve, 10-pickup-light source, 11-micro-imaging acquisition system, 12-computer information processing system.
The specific embodiment:
Relevant detailed description of the present utility model and technology contents are referred and synthesized description of drawings as follows, yet accompanying drawing only provides the use of reference with explanation, and the utility model is limited.
With reference to accompanying drawing 1, entry well fluid reservoir damage simulating-estimating device is comprised of evaluation fluid means 1, precise injection pump 2, pump work media Containers 3, thrust piston cylinder 4, pit shaft analogue means 5, thermostatic control system 6, reservoir simulating device 7, temperature and pressure sensor 8, relief valve 9, pickup-light source 10, micro-imaging acquisition system 11, computer information processing system 12.
Wherein, estimate fluid means 1, precise injection pump 2, pump work media Containers 3, thrust piston cylinder composition evaluation infusion fluid systems.thrust piston cylinder 4 is comprised of many groups piston rod, every group of piston rod different evaluation fluid media (medium) of packing into, many groups piston rod of thrust piston cylinder 4 adopts parallel-connection structure, one end is connected with the supercharging outlet of delicate metering syringe pump 2 with hydraulic line, be used for providing supercharging to thrust piston cylinder 4, the other end connects pit shaft analogue means 5 with pressure line, estimate the different fluid media (medium) of fluid means 1 splendid attire, be connected with many groups piston rod cavity volume of thrust piston cylinder 4 by pipeline, be used for providing different evaluation fluid media (medium)s to many groups piston rod cavity volume of thrust piston cylinder 4, pump work media Containers 3 is connected with the liquid feeding end of precise injection pump 2, be used for providing working media to precise injection pump 2, thrust piston cylinder 4 and evaluation fluid means 1, each pipe joint that precise injection pump 2 connects all is equipped with control valve.Thrust piston cylinder 4 injects different fluid by pipeline to pit shaft analogue means 5.Pit shaft analogue means 5 can be constituted by straight well section and horizontal segment, also can be comprised of straight well section or horizontal segment separately.The closed containing cavity that reservoir simulating device 7 is comprised of the transparent visual material, the porous media of the inside filling simulation different reservoir.Reservoir simulating device 7 is connected on pit shaft analogue means 5, and thermostatic control system 6 is enclosed within reservoir simulating device 7 outsides, is used for guaranteeing that the porous media of reservoir simulating device 7 the insides is worked at the temperature of setting.Temperature and pressure sensor 8 is embedded in reservoir simulating device 7 the insides, is used for testing temperature and the pressure of reservoir simulating device 7.The reservoir simulation test module that thermostatic control system 6, reservoir simulating device 7, temperature and pressure sensor 8 form can one or more groups be arranged on pit shaft analogue means 5, form closed system, the information exchange that temperature and pressure sensor 8 records is crossed data wire and is input in computer information processing system 12 and stores.Every group of reservoir simulating device 7 is interior can fill different simulation porous medias, can be used for observation and comparison under same environment, the extent of injury of identical working fluid to difference simulation porous media.Relief valve 9 is installed on pit shaft analogue means 5, is used for to 5 pressure releases of pit shaft analogue means.The dynamic information collection that pickup-light source 10, micro-imaging acquisition system 11 form reservoir simulating device 7, pickup-light source 10 provides suitable observation and measurement light for micro-imaging acquisition system 11, micro-imaging acquisition system 11 can move, photomicrography or video recording are carried out in porous media injury to many groups reservoir simulating device 7 the insides, and the information exchange of collection is crossed data wire and imported computer information processing system 12 into and process and preserve.
Use this experiment flow and can estimate different entry well fluids to the extent of injury of different porous medias under different temperatures, automatically accurately record injures change procedure, the injury change procedure of record is carried out graphical analysis by special-purpose software, obtain the quantitative result of reservoir damage evaluating.
Concrete experimental procedure is as follows:
According to the experiment purpose requirement, the low-permeability oil deposit fracturing fluid is put into estimated fluid means 1;
1, according to the experiment purpose requirement, with the simulation medium sand grains of bead or the different-grain diameter (combination) reservoir simulating device 7 of packing into, can saturated oils or water, transfer to the requirement of experiment position, connect with pit shaft analogue means 5.
2, connect power supply, connect micro-imaging acquisition system 11, open pickup-light source 10, thermostatic control system 6, computer information processing system 12, regulate microscopy imaging system 11 to the optimum position, arrive experimental temperature by thermostatic control system 6 heating simulation mediums.
3, open precise injection pump 2, promote thrust piston cylinder 4 with certain flow by pump work media Containers 3 constant speed entry well fluid (fracturing fluid) is injected the pit shaft analogue means, entry well fluid can add coloring agent as required.
4, gather entry well fluid to the injury of simulation porous media and fluid distribution in each reservoir simulating device 7, recording occurring continuously fluid motion change procedure by microscopy imaging system 11, pressure-temperature sensor 8, computer information processing system 12.
5, the image that obtains is directly inputted computer information processing system 12 by data wire, to image analysis processing, determines the injury of fluid in each analogue means by analysis software.Statistics comprises simulation medium face rate, fluid depth of invasion, pressure and other parameters.
This device adopts modular unit combination, can simulate the Various Complex structure wells such as straight well, horizontal well, reservoir simulating device is also taked modularization, can realize simulating the Different Plane heterogeneous body and see the heterogeneous body situation with layer, can the distribution of visual observation fluid in difference simulation reservoir.
Utilize optical system for collecting, intuitively observe the continuous change procedure of fluid, improved efficient.
Can simulate the mixing injury after multiple fluid enters simulation medium.
The above is only preferred embodiment of the present utility model, and non-in order to limit the scope of the claims of the present utility model, other use the equivalence of patent spirit of the present utility model to change, and all should all belong to the scope of the claims of the present utility model.
Claims (10)
1. entry well fluid reservoir damage simulating-estimating device, is characterized in that, comprises estimating the accurate injected system of fluid, visual airtight simulated testing system, data collecting system, computer information processing system; The accurate injected system of described evaluation fluid and data collecting system are connected to top and the terminal of visual airtight simulated testing system, and described data collecting system also is connected with computer information processing system simultaneously.
2. entry well fluid reservoir damage simulating-estimating device according to claim 1, it is characterized in that, described visual airtight simulated testing system comprises pit shaft analogue means, reservoir simulating device, and described reservoir simulating device arranges at least two groups and is fastened on respectively on the pit shaft analogue means.
3. entry well fluid reservoir damage simulating-estimating device according to claim 2, is characterized in that, described pit shaft analogue means integral body is L-type, namely connected and composed by straight well pit shaft analogue means and horizontal well pit shaft analogue means.
4. entry well fluid reservoir damage simulating-estimating device according to claim 2, is characterized in that, all overlapping outside described reservoir simulating device has airtight thermostatic control system.
5. entry well fluid reservoir damage simulating-estimating device according to claim 2, it is characterized in that, described data collecting system comprises temperature and pressure sensor, micro-imaging acquisition system, and described temperature and pressure sensor setting is connected at reservoir simulating device and with computer information processing system; Described micro-imaging acquisition system packaged type is suspended on visual airtight simulated testing system top and is connected with computer information processing system.
6. entry well fluid reservoir damage simulating-estimating device according to claim 5, is characterized in that, the side of described visual airtight simulated testing system also is provided with to provide the packaged type pickup-light source of light source to the micro-imaging acquisition system.
7. entry well fluid reservoir damage simulating-estimating device according to claim 2, is characterized in that, the end of described pit shaft analogue means is provided with relief valve.
8. entry well fluid reservoir damage simulating-estimating device according to claim 1, it is characterized in that, the accurate injected system of described evaluation fluid comprises interconnective thrust piston cylinder and precise injection pump, described precise injection pump also is connected with the pump work media Containers, the pump work media Containers is connected with the liquid feeding end of precise injection pump, is used for providing working media to the precise injection pump.
9. entry well fluid reservoir damage simulating-estimating device according to claim 8, it is characterized in that, described thrust piston cylinder is comprised of many groups piston rod, every group of piston rod pack into the different evaluation fluid media (medium) and respectively with estimate fluid means and be connected, the different fluid media (medium) of described evaluation fluid means splendid attire, be connected with many groups piston rod cavity volume of thrust piston cylinder by pipeline, be used for providing different evaluation fluid media (medium)s to many groups piston rod cavity volume of thrust piston cylinder; Many group piston rods adopt parallel-connection structure, and an end is connected with the supercharging outlet of precise injection pump with hydraulic line, is used for providing supercharging to the thrust piston cylinder, and the other end connects visual airtight simulated testing system with pipeline.
10. entry well fluid reservoir damage simulating-estimating device according to claim 9, it is characterized in that, described thrust piston cylinder all is equipped with control valve with each pipe joint that evaluation fluid means, precise injection pump, visual airtight simulated testing system are connected respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220683249 CN202946151U (en) | 2012-12-12 | 2012-12-12 | Device for simulating and evaluating reservoir damage caused by working fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220683249 CN202946151U (en) | 2012-12-12 | 2012-12-12 | Device for simulating and evaluating reservoir damage caused by working fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202946151U true CN202946151U (en) | 2013-05-22 |
Family
ID=48421858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220683249 Expired - Fee Related CN202946151U (en) | 2012-12-12 | 2012-12-12 | Device for simulating and evaluating reservoir damage caused by working fluid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202946151U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696745A (en) * | 2014-01-07 | 2014-04-02 | 西南石油大学 | Multifunctional experimental apparatus for dynamically simulating reservoir horizontal well |
| CN103867193A (en) * | 2012-12-12 | 2014-06-18 | 中国石油化工股份有限公司 | Device for simulating and evaluating reservoir damage caused by well fluid |
-
2012
- 2012-12-12 CN CN 201220683249 patent/CN202946151U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867193A (en) * | 2012-12-12 | 2014-06-18 | 中国石油化工股份有限公司 | Device for simulating and evaluating reservoir damage caused by well fluid |
| CN103696745A (en) * | 2014-01-07 | 2014-04-02 | 西南石油大学 | Multifunctional experimental apparatus for dynamically simulating reservoir horizontal well |
| CN103696745B (en) * | 2014-01-07 | 2016-05-18 | 西南石油大学 | Oil-gas reservoir horizontal well dynamic analog multifunction experiment apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106950153B (en) | It shakes out process simulation special reactor and its test method containing hydrate sediment | |
| CN102518421B (en) | Physical simulation visualization experimental device and forming method thereof | |
| CN103352695B (en) | Visualization physical simulation device with consideration of interlamination fluid channeling | |
| CN202947950U (en) | Porous medium microcosmic seepage simulation experiment device system | |
| CN202300351U (en) | Long rock core model displacement device | |
| CN106771090B (en) | Along the measuring method and measurement device of journey emulsification of crude oil ability during a kind of template surface activating agent displacement of reservoir oil | |
| CN105096731B (en) | The molten chamber physical simulating device and method in individual well salt cave | |
| CN112858628B (en) | Microcosmic visual experiment device for simulating fluid displacement under high-temperature and high-pressure conditions | |
| CN103556994A (en) | Experimental detecting system and detecting method for distribution of remaining oil in fracture-cavity reservoir bed | |
| CN202788797U (en) | Inhomogeneous clastic rock horizontal well physical model | |
| CN103233725A (en) | Device and method for determining high temperature and high pressure full diameter core mud pollution evaluation | |
| CN103063687A (en) | Device for acquiring and testing microcosmic distribution image of remaining oil in porous medium | |
| CN105041280A (en) | Method and device for realizing carbon dioxide miscible-phase displacement laboratory experiment | |
| CN102720476A (en) | O-shaped well physical simulation experiment device | |
| CN103792170A (en) | Simulation experiment device system for porous medium microscopic seepage | |
| CN104459034A (en) | Cavity construction physical simulation device and method of single-well single-cavity salt-cavern gas storage | |
| CN103104254A (en) | Multifunctional oil reservoir simulation experiment device and experiment method thereof | |
| CN103643935B (en) | Underground water seal oil storage cave depot identification of formation and water curtain hole optimization device and method | |
| CN101800000B (en) | Natural gas exploitation simulator of multi-angle horizontal branch well | |
| CN202946151U (en) | Device for simulating and evaluating reservoir damage caused by working fluid | |
| CN202417477U (en) | Physical simulation visual experimental device | |
| CN103867193A (en) | Device for simulating and evaluating reservoir damage caused by well fluid | |
| CN110021220B (en) | Building block type geothermal tail water recharging analysis system and application method | |
| CN103674607B (en) | A kind of integrated apparatus for the sampling of pot experiment soil layering | |
| CN103808634A (en) | Porous medium interface wettability experiment measuring device system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130522 Termination date: 20141212 |
|
| EXPY | Termination of patent right or utility model |