CN209855773U - High-sulfur-content water-gas sulfur deposit accumulation simulation device - Google Patents
High-sulfur-content water-gas sulfur deposit accumulation simulation device Download PDFInfo
- Publication number
- CN209855773U CN209855773U CN201921297898.8U CN201921297898U CN209855773U CN 209855773 U CN209855773 U CN 209855773U CN 201921297898 U CN201921297898 U CN 201921297898U CN 209855773 U CN209855773 U CN 209855773U
- Authority
- CN
- China
- Prior art keywords
- sulfur
- gas
- reservoir
- valve
- reservoir simulator
- 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
Landscapes
- Gas Separation By Absorption (AREA)
Abstract
The utility model discloses a high sulphur contains has aqueous vapor to hide sulphur deposit analogue means relates to high sulphur containing gas reservoir development technical field. Including the high sulphur gas pitcher that contains that connects gradually, the reservoir simulator, rock core holder and simulation pit shaft, be equipped with the sample connection in proper order on the pipeline between high sulphur gas pitcher and the reservoir simulator, gaseous booster pump, the manometer, valve and manometer, be equipped with the flowmeter on the pipeline between reservoir simulator and the rock core holder, sample connection and valve, be equipped with the flowmeter in proper order on the pipeline between rock core holder and the simulation pit shaft, sample connection and valve, the export of simulation pit shaft still has connected gradually the backpressure valve, sample connection and tail gas treatment equipment, reservoir simulator import still is connected with the pressure boost jar, the utility model discloses a total sulphur content is measured to the sample connection to confirm the sedimentary volume of sulphur, through setting up the pressure boost jar, can observe the total sulphur change of whole gas production in-process output, calculate the sulphur deposit in whole production process with this.
Description
Technical Field
The utility model relates to a high sulphur gas reservoir development technical field, concretely relates to high sulphur has aqueous vapor to hide sulphur deposit analogue means.
Background
The high-sulfur-content gas reservoirs are widely distributed globally, and resources in northeast regions of Sichuan basin are rich in China, for example, the high-sulfur-content gas reservoirs of Feixian and Changxing ferry rivers, iron hillsides, Puguang, Longgang, Yuanba, Rojiazhai, Longwanggio and the like. In the process of exploiting a gas well, along with the change of temperature and pressure, phase change can occur to elemental sulfur dissolved in a gas reservoir, meanwhile, hydrogen sulfide can be decomposed into sulfur under certain conditions, and the hydrogen sulfide dissolved in water can be separated out to increase the content of the hydrogen sulfide in natural gas, so that the sulfur deposition is aggravated. The phase state of the element sulfur determines the harmfulness of the element sulfur to the stratum, the gaseous sulfur and the liquid sulfur flow in the pores of the stratum along with airflow and cause less damage to the stratum, but when the separated solid sulfur cannot be carried and transported by gas, the sulfur deposition phenomenon can be generated, so that the pore throat is blocked, the stratum is damaged, and the productivity of a high-sulfur-containing gas well is seriously influenced.
Chinese patent CN 104483227A discloses a sulfur deposition device based on a magnetic suspension balance, which can realize the simulation of a real stratum high-temperature high-pressure high-sulfur-containing environment, greatly improve the test precision of the sulfur deposition amount, calculate the viscosity, the volume coefficient and the deviation factor of gas in real time, and measure the dynamic change of the permeability of a rock core caused by sulfur deposition in real time on line; chinese patent CN 206638565U discloses an experimental apparatus for evaluating the damage of sulfur deposition in a high-sulfur-content gas reservoir to a fractured reservoir, which monitors the flow of high-sulfur-content gas passing through a fractured rock sample by simulating a high-temperature and high-pressure environment of the stratum, and can quickly and accurately evaluate the damage degree of the sulfur deposition to the fractured rock sample.
None of the above patents, however, simulate sulfur deposition throughout the production of a gas well.
SUMMERY OF THE UTILITY MODEL
In view of the above technical problem, an object of the utility model is to provide a drilling fluid well head mass flow monitoring devices for simulate the sulphur deposit in whole gas well production process.
The utility model adopts the following technical proposal:
the utility model provides a high sulphur contains has water gas reservoir sulphur deposit analogue means, includes the high sulphur gas pitcher that contains that connects gradually, reservoir simulator, several parallel connection set up core holder and simulation pit shaft, wherein, high sulphur gas pitcher storage has high sulphur natural gas, reservoir simulator can set up according to the reservoir of difference: when the gas reservoir is a fracture-cavity type gas reservoir, a karst cave structure is arranged in the reservoir simulator, when the gas reservoir is of a common structure, a sand filling structure is arranged in the reservoir simulator, a certain amount of formation water is filled in the reservoir simulator according to the water content of the reservoir, the simulation shaft can be a horizontal well model and a vertical well model, correspondingly, the connection mode between the core holder and the simulation shaft is changed according to the structure of the simulation shaft, a sampling port, a gas booster pump, a pressure gauge, a valve and a pressure gauge are sequentially arranged on a pipeline between the high-sulfur-content gas tank and the reservoir simulator, a flowmeter, a sampling port and a valve are arranged on the pipeline between the reservoir simulator and the core holder, a crossover line with the valve is arranged between an inlet pipe and an outlet pipe of the reservoir simulator, a flowmeter, a cross line and a cross line are sequentially arranged on the pipeline between the core holder and the simulation, Sample connection and valve, the rock core holder still is equipped with encloses the pressure pump, the simulation pit shaft export still has connected gradually back-pressure valve, sample connection and tail gas treatment facility, the reservoir simulator import still is connected with the pressure boost jar, be equipped with booster pump, manometer, valve on the pipeline between pressure boost jar and the reservoir simulator in proper order, still be equipped with the wet return of taking the valve between booster pump outlet pipe and the pressure boost jar simultaneously.
Further, the core holder and the reservoir simulator are arranged in an incubator.
Furthermore, the tail gas treatment equipment comprises an absorption tank and a small torch which are sequentially connected with the outlet of the simulation shaft, wherein the absorption tank is used for treating hydrogen sulfide in the tail gas, and the small torch is used for treating residual natural gas.
The utility model has the advantages that:
the utility model discloses a set up reservoir simulator, rock core holder and simulation pit shaft and several sample connection, confirm the sulphur deposit between each part especially rock core holder and the simulation pit shaft through the change of total sulphur content in the monitoring gas, not only can measure the sulphur deposit that produces because of hydrogen sulfide decomposes, can also measure the sulphur deposit that the dissolved sulphur in the natural gas produced simultaneously, through increase a certain amount of formation water in the reservoir simulator, can simulate the sulphur deposit condition that has the aqueous vapor reservoir; through setting up pressure boost displacement equipment for the total sulphur volume in the remaining natural gas after the simulation detects the purge, and confirm the influence of sulphur deposit to the gas production volume through the change of natural gas export gas flow, simultaneously through the device, can observe the total sulphur change of whole gas production in-process output gas, with this sulphur deposit in calculating whole production process.
Drawings
FIG. 1 is a general schematic view of the present invention;
FIG. 2 is a schematic diagram of a simulated wellbore as a horizontal well model;
in the figure, 1, a high-sulfur-content gas tank, 2, a pressurization tank, 3, a reservoir simulator, 4, a core holder, 5, a simulation shaft, 6, an absorption tank, 7, a small torch, 8, a thermostat, 9, a gas booster pump, 10, a booster pump, 11, a sampling port, 12, a flowmeter, 13 pressure gauges, 14, a back pressure valve, 15 and a confining pump.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.
Example (b):
a high-sulfur-content water-gas reservoir sulfur deposition simulation device comprises a high-sulfur-content gas tank 1, a reservoir simulator 3, a plurality of core holders 4 and a simulation shaft 5 which are connected in parallel, wherein a pipeline between the high-sulfur-content gas tank 1 and the reservoir simulator 3 is sequentially provided with a sampling port 11, a gas booster pump 9, a pressure gauge 13, a valve and a pressure gauge 13, a flowmeter 12, the sampling port 11 and the valve are arranged on the pipeline between the reservoir simulator 3 and the core holder 4, a span line with the valve is arranged between an inlet pipe and an outlet pipe of the reservoir simulator 3, the flowmeter 12, the sampling port 11 and the valve are sequentially arranged on the pipeline between the core holder 4 and the simulation shaft 5, the core holder 4 is further provided with a confining pressure pump 15, an outlet of the simulation shaft 5 is further sequentially connected with a back pressure valve 14, the sampling port 11 and tail gas treatment equipment, an inlet of the reservoir, a booster pump 10, a pressure gauge 13 and a valve are sequentially arranged on a pipeline between the booster tank 2 and the reservoir simulator 3, and a water return pipe with a valve is also arranged between an outlet pipe of the booster pump 10 and the booster tank 2.
Wherein, high sulphur gas tank 1 storage has high sulphur natural gas, and reservoir simulator 3 can set up according to the reservoir of difference: when the gas reservoir is a fracture-cavity type gas reservoir, a karst cave structure is arranged in the reservoir simulator 3, when the gas reservoir is a common sand body structure, a sand filling structure is arranged in the reservoir simulator 3, and a certain amount of formation water is filled in the reservoir simulator 3 according to the water content condition of the reservoir; the core holder 4 is filled with a core with cracks, and the cracks can be artificial cracks or natural cracks; the simulated shaft 5 can be a horizontal well model or a vertical well model, correspondingly, when the simulated shaft 5 is the horizontal well model, the outlet pipes of the core holders 4 are connected to the horizontal section of the horizontal shaft, and when the simulated shaft 5 is the vertical well model, the outlet pipes of the core holders 4 are connected to the middle section or the bottom of the shaft.
Further, the core holder 4 and the reservoir simulator 3 are disposed in an incubator 8.
Further, the tail gas treatment equipment comprises an absorption tank 6 and a small torch 7 which are sequentially connected with the outlet of the simulation shaft 5, wherein the absorption tank 6 is used for treating hydrogen sulfide serving as tail gas, and the small torch 7 is used for treating residual natural gas, so that the discharged tail gas is safer.
The utility model discloses during the use, open thermostated container 8 and make the temperature rise to formation pressure, inject a certain amount of formation water in reservoir simulator 3, through the high content of total sulphur in the sample connection 11 sample survey gas that contains sulphur gas pitcher 1, open the valve of high sulphur gas pitcher 1 and 3 import departments of reservoir simulator and the valve between the 3 both ends overline of reservoir simulator, open gas booster pump 9 pressure boost to reservoir pressure, close above-mentioned two valves and gas booster pump 9, 13 numerical values of manometer before 3 imports of reservoir simulator no longer change and maintain 20min after, begin to test.
Selecting the number of the core holders 4 required to be practical, applying a certain confining pressure to the core holders 4 by the confining pressure pump 15, opening a valve between the reservoir simulator 3 and the core holders 4, enabling the high-sulfur-content gas in the reservoir simulator 3 to enter the shaft 5 through the core holders 4, simultaneously recording the flow of the front end and the rear end of the core holder 4, measuring the total sulfur content change of the high sulfur-containing gas after passing through the core holder 4 and the shaft 5 through the sampling ports 11 at the two ends of the core holder 4 and the sampling port 11 at the outlet of the simulated shaft 5, the position and the corresponding proportion of the sulfur deposition in the high sulfur-containing gas can be known, and a plurality of core holders 4 can be used in series to obtain the position and the corresponding proportion of the sulfur deposition in the high sulfur-containing gas under the condition of long cracks, by replacing cores of different fracture morphology and sizes, fracture morphology that is prone to sulfur deposition can also be determined. A back pressure valve 14 at the outlet of the simulation shaft 5 maintains certain shaft pressure to simulate the real situation, the sulfur-containing natural gas passing through the simulation shaft 5 enters an absorption tank 6, alkali liquor is filled in the absorption tank 6 and used for absorbing acid gas in the natural gas, and the natural gas after the acid gas is removed enters a small torch 7 to be combusted.
When the experiment process enters the later stage, namely the numerical value of the outlet flow meter 12 of the core holder 4 is obviously reduced, when the pressure in the reservoir simulator 3 is reduced and water drive is needed to be adopted for increasing, a certain amount of displacement liquid is injected into the booster tank 2, valves on the booster pump 10 and the water return pipeline are opened, when the numerical value of a pressure gauge 13 on an outlet pipe of the booster pump 10 is not lower than the numerical value of a pressure gauge 13 on an inlet pipe of the reservoir simulator 3, the valve on the outlet pipeline of the booster pump 10 is opened, the displacement liquid enters the reservoir simulator 3, and the experiment can be continued when the reservoir simulator 3 is restored to a certain pressure, so that the purpose of the liquid inlet mode is to prevent the pressure in the reservoir simulator 3 from. The influence of sulfur deposition on core fractures and reservoir structures is determined by comparing the flow of high sulfur natural gas under the same pressure conditions before and after water flooding.
After the experiment is finished, the reservoir simulator 3, the core holder 4, the simulated shaft 5 and connecting pipelines of the reservoir simulator, the core holder 4 and the simulated shaft 5 can be opened to observe the deposition condition of sulfur, and meanwhile, the corresponding reservoir simulation structure in the reservoir simulator 3 and the fracture structure in the core holder 4 can be further dissected to observe the micro-composition of the deposited sulfur in the fractures and the reservoir simulation structure.
It should be noted that the pressurizing medium delivered by the booster pump 10 may be not only water, but also gas, and the corresponding booster pump 10 is changed to be a gas booster pump.
Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes are intended to fall within the scope of the claims.
Claims (6)
1. A high-sulfur water-bearing gas reservoir sulfur deposition simulation device is characterized by comprising a high-sulfur gas tank, a reservoir simulator, a rock core holder and a simulation shaft which are sequentially connected, a sampling port, a gas booster pump, a pressure gauge, a valve and a pressure gauge are sequentially arranged on a pipeline between the high-sulfur-content gas tank and the reservoir simulator, a flow meter, a sampling port and a valve are arranged on a pipeline between the reservoir simulator and the core holder, a flow meter, a sampling port and a valve are sequentially arranged on a pipeline between the core holder and the simulated shaft, the outlet of the simulated shaft is also sequentially connected with a back pressure valve, a sampling port and tail gas treatment equipment, the inlet of the reservoir simulator is also connected with a pressure boost tank, be equipped with booster pump, manometer, valve on the pipeline between booster cylinder and the reservoir simulator in proper order, still be equipped with the wet return simultaneously between booster pump outlet pipe and the booster cylinder.
2. The simulation device for sulfur deposition in a high-sulfur and water-containing gas reservoir as claimed in claim 1, wherein a valved crossover is provided between the inlet pipe and the outlet pipe of the reservoir simulator.
3. The simulation device for sulfur deposition in a high-sulfur and water-bearing gas reservoir as claimed in claim 1, wherein the core holder is further provided with a confining pressure pump.
4. The simulation device for sulfur deposition in a high-sulfur and water-bearing gas reservoir as claimed in claim 2 or 3, wherein the core holder and the reservoir simulator are arranged in an incubator.
5. The simulation device for sulfur deposition in the high-sulfur water-bearing gas reservoir as claimed in claim 1, wherein the tail gas treatment equipment comprises an absorption tank and a small torch which are connected with the outlet of the simulated shaft in sequence.
6. The simulation device for sulfur deposition in a high-sulfur and water-bearing gas reservoir as claimed in claim 3, wherein a plurality of core holders are arranged in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921297898.8U CN209855773U (en) | 2019-08-12 | 2019-08-12 | High-sulfur-content water-gas sulfur deposit accumulation simulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921297898.8U CN209855773U (en) | 2019-08-12 | 2019-08-12 | High-sulfur-content water-gas sulfur deposit accumulation simulation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209855773U true CN209855773U (en) | 2019-12-27 |
Family
ID=68943233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921297898.8U Expired - Fee Related CN209855773U (en) | 2019-08-12 | 2019-08-12 | High-sulfur-content water-gas sulfur deposit accumulation simulation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209855773U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111794729A (en) * | 2020-08-13 | 2020-10-20 | 重庆科技学院 | Sulfur-containing gas well production simulation device and method based on fixed-yield production |
| CN112014261A (en) * | 2020-09-04 | 2020-12-01 | 西南石油大学 | Device and method for measuring content of adsorbed sulfur based on solvent dissolution principle |
| CN112329358A (en) * | 2020-11-09 | 2021-02-05 | 王立佳 | Method for researching sulfur deposition pore network model of high-sulfur-content gas reservoir |
| CN116241247A (en) * | 2023-03-14 | 2023-06-09 | 西南石油大学 | Experimental device and method for simulating multi-well collaborative multi-cycle driving-swallowing coupling |
-
2019
- 2019-08-12 CN CN201921297898.8U patent/CN209855773U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111794729A (en) * | 2020-08-13 | 2020-10-20 | 重庆科技学院 | Sulfur-containing gas well production simulation device and method based on fixed-yield production |
| CN112014261A (en) * | 2020-09-04 | 2020-12-01 | 西南石油大学 | Device and method for measuring content of adsorbed sulfur based on solvent dissolution principle |
| CN112329358A (en) * | 2020-11-09 | 2021-02-05 | 王立佳 | Method for researching sulfur deposition pore network model of high-sulfur-content gas reservoir |
| CN116241247A (en) * | 2023-03-14 | 2023-06-09 | 西南石油大学 | Experimental device and method for simulating multi-well collaborative multi-cycle driving-swallowing coupling |
| CN116241247B (en) * | 2023-03-14 | 2023-12-12 | 西南石油大学 | Experimental device and method for simulating multi-well collaborative multi-cycle driving-swallowing coupling |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209855773U (en) | High-sulfur-content water-gas sulfur deposit accumulation simulation device | |
| CN108490156B (en) | Test method for mixed gas oil displacement buried stock experiment under high-temperature and high-pressure conditions | |
| CN105239973B (en) | Condensate gas reservoir blocking removal physical simulation experiment device and experiment method thereof | |
| US20210190666A1 (en) | Device and method for measuring horizontal/vertical permeability of hydrate reservoir | |
| WO2016061854A1 (en) | Simulation experiment device for natural gas hydrate exploitation at permeable boundary layers | |
| CN110566195B (en) | Experimental method for evaluating gas reservoir stress sensitivity under stratum condition by considering bound water | |
| CN104632153B (en) | Experimental system for water reciprocating migration rule of water-drive oil-gas reservoir type gas storage reservoir | |
| CN105388254B (en) | HTHP foam fracturing fluid leak-off damage experiment system | |
| CN110244023B (en) | Measuring method combining physical simulation and numerical simulation of seam-making full-diameter rock core | |
| CN114354809B (en) | Experimental system and experimental evaluation method for replacing methane by carbon dioxide pulse displacement | |
| CN109668814A (en) | A kind of long cores simulator in parallel of low permeability gas reservoirs commingling production | |
| CN109932272B (en) | CO (carbon monoxide) 2 Displacement experiment system and displacement experiment method | |
| CN110285865B (en) | System and method for simulating gas loss in shale field coring process | |
| CN101270660A (en) | Dynamic scale formation instrument | |
| CN113075109A (en) | Underground gas storage reservoir drying salting-out blocking injury experiment simulation system and method | |
| CN108956425B (en) | Device and method for measuring initial water permeability of extra-heavy oil reservoir | |
| CN113310867B (en) | Experimental test method for simulating gas reservoir high-temperature high-pressure stratum reverse osmosis water absorption lock damage | |
| CN210239658U (en) | Elemental sulfur deposition simulation device for high-sulfur-content gas | |
| CN111980646A (en) | Imbibition oil displacement effect evaluation device and use method | |
| CN111272621A (en) | Elemental sulfur deposition simulation device for high-sulfur-content gas | |
| CN112098303A (en) | Device and method for testing and determining seepage rule of shale gas in hydraulic support fracture | |
| CN209945927U (en) | High sulphur gas reservoir sulphur deposit simulation test device that contains | |
| CN108169098B (en) | Reasonable drainage and production speed simulation device for single-phase flow stage of coalbed methane vertical well | |
| CN211669154U (en) | Evaluation device for foam system for oil displacement | |
| CN209416878U (en) | A kind of long cores simulator in parallel of low permeability gas reservoirs commingling production |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20191227 Termination date: 20200812 |