CN204731130U - Rock-fluid reaction in-situ observation the device of controlled temperature and pressure - Google Patents
Rock-fluid reaction in-situ observation the device of controlled temperature and pressure Download PDFInfo
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- CN204731130U CN204731130U CN201520308689.4U CN201520308689U CN204731130U CN 204731130 U CN204731130 U CN 204731130U CN 201520308689 U CN201520308689 U CN 201520308689U CN 204731130 U CN204731130 U CN 204731130U
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Abstract
The utility model relates to field of petroleum geology, particularly a kind of rock-fluid reaction in-situ observation device of controlled temperature and pressure.Concrete technical scheme is: include reaction body, be opened in the sealed reaction chamber on reaction body and the observation element that in sealed reaction chamber, petrographic thin section reacts can be visited, reaction body is provided with gas-liquid access mechanism and fluid circulation mechanism, gas-liquid access mechanism includes to be located on reaction body, and one end and the conducting of reaction external body, the other end by interface channel respectively with gas entrance and the liquid inlet of reaction chamber conducting, gas entrance and liquid inlet place are respectively equipped with can shutoff or open the gas of gas entrance and enter operation valve and shutoff or the liquid of opening liquid inlet can enter operation valve.Adopt technique scheme, provide a kind of rock-fluid reaction in-situ observation device shortening experimental period, improve the controlled temperature and pressure of experiment effect.
Description
Technical field
The utility model relates to field of petroleum geology, particularly a kind of rock-fluid reaction in-situ observation device of controlled temperature and pressure.
Background technology
Water rock simulation reaction is experimental technique conventional in petroleum geology, and fundamental purpose understands fully the Crack cause of sandstone reservoir of oil and gas mesoporosity, for the prediction of branded oil gas reservoir provides important clue.At present, Water-rock interaction experiment is main adopts four kinds of experimental provisions: one heats directly reaction for utilizing glass container, and the Water-rock interaction under simulation near surface condition, analyzes the concentration change of different zwitterion; It is two for utilizing the Water-rock interaction of closed system under high-temperature high-pressure reaction kettle analog approximation formation condition, the corrosion of main analog feldspar in different acidic fluid; It three is utilize to heat the flow reactor of pressurization, the Water-rock interaction process of simulation open system; Its four be diamond anvil cell carry out mineral original position corrosion observe method.
In above-mentioned four kinds of methods, the experimental technique utilizing glass container to heat directly reaction adopts glass container (beaker etc.) to be directly put in electric jacket or water-bath the method carrying out heating and tests, and cannot pressurize, and can be used for high-temperature pressure experiment.Because rock sample conventional in oil geology industry is tested, cannot pressurize result in blowhole and is occupied by air always, and fluid is difficult to enter rock interior reaction.
Utilize the experimental technique of high-temperature high-pressure reaction kettle analogue means to adopt the reactor closed to test, experimentation adopts electrical heating and gas boosting or hydraulic way.The burial diagenesis state that can represent under surface layer condition is compared in this reaction.But local water has certain fluidity in the earth formation, complete closed system affects the carrying out of Water-rock interaction after causing some ion accumulation to a certain extent.In addition, rock sample Water-rock interaction result, only by scanning electron microscopic observation, cannot observe the change of hole and venturi.
Water-rock interaction process under utilizing the experimental technique of the flow reactor of controlled temperature and pressure employing driving device or utilizing the flowing of pressure official post fluid to simulate open system, more close with the truth under formation condition.But be limited to reaction rock core and be placed in closed reaction chamber completely, reaction rate and process are only observed by taking-up after pressure release cooling and ion concentration measures.Exist too when utilizing this flow reactor to carry out rock sample water_rock interaction and cannot observe the evolution of hole and the change of venturi.
Diamond anvil cell technology is the in-situ high temperature High-Voltage Experimentation technology grown up a kind of the 1950's, and can combine with Raman spectrum and infrared spectrum etc., quantitative data is very accurate.This method is better applied in materialogy, but not yet generally applies in oil geology industry.Capacity mainly due to diamond anvil cell is very little, is micron order, is conducive to mineral-fluid reaction and observes, and be unfavorable for that the rock-fluid reaction of large scale multiphase coexistence is observed.
Summary of the invention
For the deficiency that prior art exists, the utility model provides and a kind ofly shortens experimental period, improves experiment effect, can observe rock reactiveness in controllable temperature pressure, is convenient to rock-fluid reaction in-situ observation device of implementing with the petrographic thin section of actual experiment to contrast, can observe in Water-rock interaction the controlled temperature and pressure of the problem that in oil gas reservoir sedimentogeneous rock, dissolution porosity develops and venturi changes.
For achieving the above object, the utility model provides following technical scheme: a kind of rock-fluid reaction in-situ observation device of controlled temperature and pressure, it is characterized in that: include reaction body, be opened in sealed reaction chamber reaction body also can being placed petrographic thin section and the observation element that petrographic thin section reaction in sealed reaction chamber can be visited, described reaction body is provided with gas-liquid access mechanism and fluid circulation mechanism, described gas-liquid access mechanism includes to be located on reaction body, and one end and the conducting of reaction external body, the other end by interface channel respectively with gas entrance and the liquid inlet of reaction chamber conducting, gas entrance and liquid inlet place are respectively equipped with can shutoff or open the gas of gas entrance and enter operation valve and shutoff or the liquid of opening liquid inlet can enter operation valve, described fluid circulation mechanism includes the circulatory flow with reaction chamber conducting, circulatory flow is provided with and flows out joint with the circulating fluid that is connected of reaction body respectively and circulating fluid enters assembly, described reaction body is provided with the liquid of being discharged by liquid after completion of the reaction and discharges joint, and this liquid discharges joint and reaction chamber conducting.
Adopt technique scheme, gas entrance on reaction body can be implemented to be connected with the high-pressure pump of outside or gas cylinder, when being placed with the petrographic thin section needing to implement test in reaction chamber, the Experimental Flowing Object that can react with rock is injected by liquid inlet place, then by gas entrance, pressurization is implemented to reaction chamber by high-pressure pump or gas cylinder, make Experimental Flowing Object under pressurised conditions can the faster and more effective pore space entering into petrographic thin section, improve reaction velocity and effect, also shorten the reaction time simultaneously, then Experimental Flowing Object can be between fluid circulation mechanism and reaction chamber circulation repeatedly, operator carries out Real Time Observation by observation element to the petrographic thin section in reaction chamber in the process, in the dynamic Water-rock interaction of observable, the dissolving characteristic of sedimentogeneous rock mineral or rock composition changes and hole, the change of venturi, thus reappear geologic fluids and the interactional process of rock, so that the data well and needed for subsequent experimental are implemented to contrast, the accuracy of experiment gained is higher.
The utility model is set to further: reaction body is provided with the pressure detection mechanism by pressure runner and reaction chamber conducting, and this pressure detection mechanism includes one end and is connected with pressure runner, the pressure test tap that the other end is connected with external tensimeter.
Adopt technique scheme, the setting of this place's pressure detection mechanism is implemented to regulate to the pressure in reaction chamber by external manometric data display, operator can be allowed to know pressure value in reaction chamber, so that implement to regulate to the pressure in reaction chamber, adjust pressure the most suitable, so that improve the accuracy of the reaction velocity of petrographic thin section, efficiency and experiment.
The utility model is further set to: reaction body is provided with sampling mechanism, and this sampling mechanism includes to be sampled interface channel and sampling joint conducting or closed controlling of sampling valve by the sampling joint and can impelling of sampling interface channel and reaction chamber conducting.
Adopt technique scheme, the setting of sampling mechanism convenient operation person can implement sampling to reactive material at any time, facilitate the extraction to Experiment Result, and extracting mode is simple, fast, further shortens experimental period, improves conventional efficient.
The utility model is further set to: reaction body is provided with the heating arrangements be connected with reaction chamber, and this heating arrangements includes one end and is connected with reaction body, and what the other end can be electrically connected with external power source adds thermal socket.
Adopt technique scheme, in experimentation, employing adds thermal socket and implements heating to petrographic thin section in reaction chamber and reaction liquid, makes after heating, to have stronger solution ration, by the transformation that relents to contrast the impact of temperature and pressure with the fluid on petrographic thin section surface in hole.
The utility model is further set to: reaction body includes core body and is located at the mounting blocks that core body both sides and core body spliced by securing member, reaction chamber is the through hole longitudinally run through along core body, the axial two ends of through hole are respectively equipped with the glass that can have an X-rayed, gap between two glass is petrographic thin section placement space, O-ring seal is provided with between glass and the inwall of through hole, and wherein one block of glass is eyepiece, another block glass is diaphotoscope, and observation element is the microlens being set up in eyepiece place.
Adopt technique scheme, not only easy accessibility is set like this, and operator can implement to observe to the petrographic thin section in reaction chamber easily.
The utility model is further set to: circulating fluid enters assembly and includes to enter joint with the circulation fluid of reaction chamber conducting and be set up in circulation fluid and to enter on joint and to enter the solenoid valve of joint conducting with circulation fluid, solenoid valve includes upstream end and outflow end, upstream end and circulation fluid flow out by pipeline connection between joint, and outflow end and circulation fluid enter between joint and be provided with retaining valve.
Adopt technique scheme, arrange like this and liquid can be made to be in iterative cycles flowing in circulatory flow, further improve reaction effect and the speed of petrographic thin section.
Below in conjunction with accompanying drawing, the utility model is further described.
Accompanying drawing explanation
Fig. 1 is the principle schematic of the utility model embodiment;
Fig. 2 is the structural representation of the utility model embodiment;
Fig. 3 is the A-A diagrammatic cross-section of Fig. 2;
Fig. 4 is the I portion enlarged diagram of Fig. 2.
Embodiment
The rock fluid home position observation device of a kind of controlled temperature and pressure as shown in Fig. 1-Fig. 4, include reaction body 1, be opened in the sealed reaction chamber 11 reaction body 1 also can being placed petrographic thin section and the observation element 2 that petrographic thin section reaction in sealed reaction chamber 11 can be visited, reaction body 1 is provided with gas-liquid access mechanism 3 and fluid circulation mechanism 4, gas-liquid access mechanism 3 includes to be located on reaction body 1, and one end and reaction body 1 turned on outside, the other end by interface channel 12 respectively with gas entrance 31 and the liquid inlet 32 of reaction chamber 11 conducting, gas entrance 31 and liquid inlet 32 place are respectively equipped with can shutoff or open the gas of gas entrance 31 and enter operation valve 33 and shutoff or the liquid of opening liquid inlet 32 can enter operation valve 34, the gas at this place enters operation valve 33 and liquid enters operation valve 34 for controlling hand valve, and certainly, also implementing to drive by actuator, is also feasible.Fluid circulation mechanism 4 includes the circulatory flow 41 with reaction chamber 1 conducting, circulatory flow 41 is provided with and flows out joint 42 with the circulating fluid that is connected of reaction body 1 respectively and circulating fluid enters assembly 43, reaction body 1 is provided with the liquid of being discharged by liquid after completion of the reaction and discharges joint 5, and this liquid discharges joint 5 and reaction chamber 11 conducting.In such scheme, gas entrance 31 on reaction body 1 can be implemented to be connected with the high-pressure pump of outside or gas cylinder, when being placed with thin piece of the rock needing to implement test in reaction chamber 11, the Experimental Flowing Object that can react with rock is injected by liquid inlet 32 place, then pressurization is implemented by high-pressure pump or gas cylinder by gas entrance 31 pairs of reaction chambers 11, make Experimental Flowing Object under pressurised conditions can the faster and more effective pore space entering into petrographic thin section, improve reaction velocity and effect, also shorten the reaction time simultaneously, then Experimental Flowing Object can be between fluid circulation mechanism 4 and reaction chamber 11 circulation repeatedly, operator carries out Real Time Observation by the petrographic thin section in observation element's 2 pairs of reaction chambers 11 in the process, in the dynamic Water-rock interaction of observable, the dissolving characteristic of sedimentogeneous rock mineral or rock composition changes and hole, the change of venturi, thus reappear geologic fluids and the interactional process of rock, so that the data well and needed for subsequent experimental are implemented to contrast, higher of the accuracy of experiment gained.The utility model can under the condition of controlled temperature and pressure Real Time Observation reactiveness; The diameter 25mm petrographic thin section of oil geology industry universal can be directly used in experiment, experimental result can carry out comparative study with actual thin slice.Emphasis solves device in the past cannot observe the problem that in oil gas reservoir sedimentogeneous rock, dissolution porosity develops and venturi changes in Water-rock interaction, has valuable help to oil and gas reservoir prediction.
In the utility model embodiment, for the ease of implementing to regulate to the pressure in reaction chamber 11, operator can be allowed to know pressure value in reaction chamber 11, so that adjust pressure the most suitable, improve the accuracy of the reaction velocity of petrographic thin section, efficiency and experiment, reaction body 1 is provided with by the pressure detection mechanism 6 of pressure runner 13 with reaction chamber 11 conducting, this pressure detection mechanism 6 includes one end and is connected with pressure runner 13, the pressure test tap 61 that the other end is connected with external tensimeter.
For the ease of the extraction to reactive material, the petrographic thin section also sustainable enforcement reaction be in reaction chamber 11 is made while extracting, reaction body 1 is provided with sampling mechanism 7, and this sampling mechanism 7 includes by the sampling joint 71 of sampling interface channel 14 and reaction chamber 11 conducting and can impel sample interface channel 14 and sampling joint 71 conducting or closed controlling of sampling valve 72.
In order to make after heating, to there is stronger solution ration with the fluid on petrographic thin section surface in hole, by the transformation that relents to contrast the impact of temperature and pressure, reaction body 1 is provided with the heating arrangements 8 be connected with reaction chamber 11, this heating arrangements 8 includes one end and is connected with reaction body 1, and what the other end can be electrically connected with external power source adds thermal socket 81.Certainly, it should be noted that, the thermal socket 81 that adds at this place also can be heating wire or heating rod, is all feasible.
React body 1 in the utility model embodiment to include core body 15 and be located at the mounting blocks 16 that core body 15 both sides and core body 15 spliced by securing member, reaction chamber 11 is the through hole longitudinally run through along core body 15, the axial two ends of through hole are respectively equipped with the glass that can have an X-rayed, gap between two glass is petrographic thin section placement space, O-ring seal 17 is provided with between glass and the inwall of through hole, and wherein one block of glass is eyepiece 21, another block glass is diaphotoscope 22, and observation element 2 is for being set up in the microlens 23 at eyepiece 21 place.Securing member can be screw, or core body 15 is connected with mounting blocks 16 clamping, is also feasible, arranges not only easy accessibility like this, and is convenient to the installation of observation element 2, makes operator can implement Real Time Observation to the reaction of petrographic thin section.
Circulating fluid in the utility model embodiment enters assembly 43 and includes to enter joint 431 with the circulation fluid of reaction chamber 11 conducting and be set up in circulation fluid and to enter on joint 431 and to enter the solenoid valve 432 of joint 431 conducting with circulation fluid, solenoid valve 432 includes upstream end 4321 and outflow end 4322, upstream end 4321 and circulation fluid flow out by pipeline connection between joint 431, and outflow end 4322 and circulation fluid enter between joint 431 and be provided with retaining valve 433.The retaining valve 433 at this place is discharged by the outflow end 4322 of solenoid valve 432 for being only limited to circulation fluid, can prevent circulation fluid from entering the liquid backflow at jointing 431 place in solenoid valve 432.
Claims (10)
1. rock-fluid reaction in-situ observation the device of controlled temperature and pressure, it is characterized in that: include reaction body, to be opened on reaction body and the observation element of petrographic thin section response situation in the sealed reaction chamber of petrographic thin section and observable sealed reaction chamber can be placed, described reaction body is provided with gas-liquid access mechanism and fluid circulation mechanism, described gas-liquid access mechanism includes to be located on reaction body, and one end and the conducting of reaction external body, the other end by interface channel respectively with gas entrance and the liquid inlet of reaction chamber conducting, gas entrance and liquid inlet place are respectively equipped with can shutoff or open the gas of gas entrance and enter operation valve and shutoff or the liquid of opening liquid inlet can enter operation valve, described fluid circulation mechanism includes the circulatory flow with reaction chamber conducting, circulatory flow is provided with and flows out joint with the circulating fluid that is connected of reaction body respectively and circulating fluid enters assembly, described reaction body is provided with the liquid of being discharged by liquid after completion of the reaction and discharges joint, and this liquid discharges joint and reaction chamber conducting.
2. rock-fluid reaction in-situ observation the device of controlled temperature and pressure according to claim 1, it is characterized in that: described reaction body is provided with the pressure detection mechanism by pressure runner and reaction chamber conducting, this pressure detection mechanism includes one end and is connected with pressure runner, the pressure test tap that the other end is connected with external tensimeter.
3. rock-fluid reaction in-situ observation the device of controlled temperature and pressure according to claim 1 and 2, it is characterized in that: described reaction body is provided with sampling mechanism, this sampling mechanism includes to be sampled interface channel and sampling joint conducting or closed controlling of sampling valve by the sampling joint and can impelling of sampling interface channel and reaction chamber conducting.
4. rock-fluid reaction in-situ observation the device of controlled temperature and pressure according to claim 1 and 2, it is characterized in that: described reaction body is provided with the heating arrangements be connected with reaction chamber, this heating arrangements includes one end and is connected with reaction body, and what the other end can be electrically connected with external power source adds thermal socket.
5. rock-fluid reaction in-situ observation the device of controlled temperature and pressure according to claim 3, it is characterized in that: described reaction body is provided with the heating arrangements be connected with reaction chamber, this heating arrangements includes one end and is connected with reaction body, and what the other end can be electrically connected with external power source adds thermal socket.
6. rock-fluid reaction in-situ observation the device of the controlled temperature and pressure according to claim 1 or 2 or 5, it is characterized in that: described reaction body includes core body and is located at the mounting blocks that core body both sides and core body spliced by securing member, reaction chamber is the through hole longitudinally run through along core body, the axial two ends of through hole are respectively equipped with the tempered glass that can have an X-rayed, gap between two tempered glass is petrographic thin section placement space, O-ring seal is provided with between glass and the inwall of through hole, and wherein one block of glass is eyepiece, another block glass is diaphotoscope, observation element is the microlens being set up in eyepiece place.
7. rock-fluid reaction in-situ observation the device of controlled temperature and pressure according to claim 3, it is characterized in that: described reaction body includes core body and is located at the mounting blocks that core body both sides and core body spliced by securing member, reaction chamber is the through hole longitudinally run through along core body, the axial two ends of through hole are respectively equipped with the tempered glass that can have an X-rayed, gap between two tempered glass is petrographic thin section placement space, O-ring seal is provided with between glass and the inwall of through hole, and wherein one block of glass is eyepiece, another block glass is diaphotoscope, observation element is the microlens being set up in eyepiece place.
8. rock-fluid reaction in-situ observation the device of controlled temperature and pressure according to claim 4, it is characterized in that: described reaction body includes core body and is located at the mounting blocks that core body both sides and core body spliced by securing member, reaction chamber is the through hole longitudinally run through along core body, the axial two ends of through hole are respectively equipped with the tempered glass that can have an X-rayed, gap between two tempered glass is petrographic thin section placement space, O-ring seal is provided with between glass and the inwall of through hole, and wherein one block of glass is eyepiece, another block glass is diaphotoscope, observation element is the microlens being set up in eyepiece place.
9. rock-fluid reaction in-situ observation the device of the controlled temperature and pressure according to claim 1 or 2 or 5 or 7, it is characterized in that: described circulating fluid enters assembly and includes to enter joint with the circulation fluid of reaction chamber conducting and be set up in circulation fluid and to enter on joint and to enter the solenoid valve of joint conducting with circulation fluid, solenoid valve includes upstream end and outflow end, upstream end and circulation fluid flow out by pipeline connection between joint, and outflow end and circulation fluid enter between joint and be provided with retaining valve.
10. rock-fluid reaction in-situ observation the device of controlled temperature and pressure according to claim 3, it is characterized in that: described circulating fluid enters assembly and includes to enter joint with the circulation fluid of reaction chamber conducting and be set up in circulation fluid and to enter on joint and to enter the solenoid valve of joint conducting with circulation fluid, solenoid valve includes upstream end and outflow end, upstream end and circulation fluid flow out by pipeline connection between joint, and outflow end and circulation fluid enter between joint and be provided with retaining valve.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520308689.4U CN204731130U (en) | 2015-05-13 | 2015-05-13 | Rock-fluid reaction in-situ observation the device of controlled temperature and pressure |
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| CN201520308689.4U CN204731130U (en) | 2015-05-13 | 2015-05-13 | Rock-fluid reaction in-situ observation the device of controlled temperature and pressure |
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| CN204731130U true CN204731130U (en) | 2015-10-28 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104880395A (en) * | 2015-05-13 | 2015-09-02 | 成都理工大学 | Rock-fluid reaction in situ observation device capable of controlling temperature and pressure |
| CN107290499A (en) * | 2016-03-30 | 2017-10-24 | 中国石油化工股份有限公司 | Device for simulating closed system water-rock interaction |
-
2015
- 2015-05-13 CN CN201520308689.4U patent/CN204731130U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104880395A (en) * | 2015-05-13 | 2015-09-02 | 成都理工大学 | Rock-fluid reaction in situ observation device capable of controlling temperature and pressure |
| CN107290499A (en) * | 2016-03-30 | 2017-10-24 | 中国石油化工股份有限公司 | Device for simulating closed system water-rock interaction |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151028 Termination date: 20180513 |