CN110185435A - A kind of experimental rig of heterogeneous reservoir well test analysis - Google Patents
A kind of experimental rig of heterogeneous reservoir well test analysis Download PDFInfo
- Publication number
- CN110185435A CN110185435A CN201910520861.5A CN201910520861A CN110185435A CN 110185435 A CN110185435 A CN 110185435A CN 201910520861 A CN201910520861 A CN 201910520861A CN 110185435 A CN110185435 A CN 110185435A
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- well
- cabinets cavity
- perturbed
- simulation
- rock sample
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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
- E21B47/00—Survey of boreholes or wells
-
- 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 relates to a kind of experimental rigs of heterogeneous reservoir well test analysis, using this device, provide test data to calculate flow parameter between heterogeneous reservoir well.It includes: cylindrical box with cabinets cavity, there is annular space between cabinets cavity and wall box, demarcation plate can be lifted by placing in cabinets cavity, for placing artificial reservoir rock sample, the simulation perforation pit shaft surrounding of artificial reservoir rock sample two sides can insert the quartz sand of different-grain diameter and gradation, for simulating heterogeneous reservoir.Two simulation perforation pit shafts are respectively intended to simulation perturbed well and inspection well.Water injection valve is housed at the top of perturbed well, it observes bottom and connects bottom pressure device, change the working system of perturbed well by filling the water and stopping note, the bottom pressure data of hourly observation well simultaneously, the bottom pressure change curve of inspection well is obtained, provides test data to calculate flow parameter between heterogeneous reservoir well.
Description
Technical field
The invention belongs to oil-gas field development experimental technique fields, and in particular to a kind of test of heterogeneous reservoir well test analysis
Device.
Background technique
It is needed in oilfield exploitation procedure through Well Test Technology come Study In Reservoir parameter.When well testing, generally made with a well
For perturbed well, another a well after the working condition for changing perturbed well, will appear one as inspection well in neighbouring inspection well
The unstable pressure change stage records the bottom pressure variation of the inspection well due to caused by perturbed well change working system,
The time changed from inspection well bottom pressure and rule, can calculate the flow parameter between well.But Well Test Technology is constructed at the scene
It needs to take a long time in the process, also increases oil field development cost.Because of a kind of heterogeneous reservoir well test analysis of the invention
Experimental rig can simulate practical well testing process indoors.
Summary of the invention
The purpose of the present invention is to provide a kind of experimental rigs of heterogeneous reservoir well test analysis.Using this device, use
Two simulation perforation pit shafts simulate perturbed well and inspection well respectively.Demarcation plate can be lifted by being equipped in cabinets cavity, for placing
Artificial reservoir rock sample, the simulation perforation pit shaft surrounding of artificial reservoir rock sample two sides can insert the quartz sand of different-grain diameter and gradation,
For simulating heterogeneous reservoir.Change the working system of perturbed well, while the shaft bottom of hourly observation well by filling the water and stopping note
Pressure data obtains the bottom pressure change curve of inspection well, provides test number to calculate flow parameter between heterogeneous reservoir well
According to.
The present invention adopts the following technical scheme:
A kind of experimental rig of heterogeneous reservoir well test analysis, comprising: cylindrical box, water injection valve, pressure relief valve, in sealing
Lid, artificial reservoir rock sample, perturbed well, inspection well, pit shaft flow-limiting valve, well head pressure gauge, can lift demarcation plate, is close sealing external cover
Seal, gasket seal, anti-sand bedding course, bottom pressure device, it is characterised in that: cylindrical box has cabinets cavity, cabinets cavity
There is annular space between wall box, demarcation plate can be lifted by placing among cabinets cavity by card slot, can be lifted in demarcation plate and be used to
Artificial reservoir rock sample is placed, the space of artificial reservoir rock sample two sides is used to place two simulation perforation pit shafts in cabinets cavity, and two
A simulation perforation wellbore bottom is caught in cabinets cavity by groove, and surrounding can insert the quartz sand of different-grain diameter and gradation, and two
Simulation perforation pit shaft is respectively intended to simulation perturbed well and inspection well, wraps up anti-sand bedding course on the outside of two simulation perforation pit shafts, is used to
Prevent quartz sand from entering simulation perforation pit shaft；It is equipped at the top of perturbed well and is screwed water injection valve and connects well head pressure gauge, observed
Equipped with the pit shaft flow-limiting valve that is screwed at the top of well, observation bottom connects bottom pressure device；Two simulation perforation pit shafts are sealing
Part under inner cover is designed using particle size, and is equipped with gasket seal in inner sealing lid lower part to guarantee the leakproofness of cabinets cavity；
Inner sealing lid is fixed by card slot and cabinets cavity, and sealing ring is equipped at card slot, and sealing external cover passes through with cylindrical box
Screw thread is tightly fastened, to further reinforce cabinets cavity and inner sealing lid；Injection water is entered by perturbed well fills quartz
Sand, and flowed out out of observation well shaft after flowing through artificial reservoir rock sample, for simulating well testing process.
Above-mentioned technical proposal of the invention compared with prior art, can be simulated under the conditions of heterogeneous reservoir, and note is passed through
Water and stop note to change the working system of perturbed well, injection water enters heterogeneous reservoir by perturbed well, and from observing well shaft
Well testing process is simulated in outflow, while the bottom pressure change curve of hourly observation well.
As a kind of preferred embodiment of the invention, sealing ring is equipped at the inner sealing lid card slot, bottom is equipped with gasket
Piece.
As a kind of preferred embodiment of the invention, described two simulation perforation pit shafts are respectively intended to simulation perturbed well and observation
Anti- sand bedding course is wrapped up in well, simulation perforation pit shaft outside.
As a kind of preferred embodiment of the invention, demarcation plate can be lifted by being equipped with inside the cabinets cavity.
Detailed description of the invention
Fig. 1 is structural representation total figure of the invention.
Fig. 2 is sectional view of the invention.
Fig. 3 is inner sealing lid sectional view of the present invention.
Fig. 4 is sealing external cover sectional view of the present invention.
Fig. 5 is cabinets cavity schematic diagram of the present invention.
In figure: 1 water injection valve, 2 perturbed wells, 3 cylindrical box, 4 pit shaft flow-limiting valves, 5 inspection wells, 6 inner sealing lids, 7 sealings
Outer cover, 8 pressure relief valves, 9 sealing rings, 10 well head pressure gauges, 11 can lift demarcation plate, 12 gasket seals, 13 anti-sand bedding courses, 14 wells
Bottom pressure device, 15 artificial reservoir rock samples.
Specific embodiment
The present invention is described in detail with reference to the accompanying drawing:
In the embodiment of the present invention, cylindrical box 3 has cabinets cavity, there is annular space between cabinets cavity and wall box, circle
Tubular cabinet 3 is equipped with pressure relief valve 8, can lay down the fluid inside cabinets cavity when necessary.Inner sealing lid 6 passes through card slot and case
Intracoelomic cavity is fixed, and sealing external cover 7 is tightly fastened with cylindrical box 3 by screw thread, is further reinforced in cabinets cavity and sealing
It covers, sealing ring 9 is equipped at 6 card slot of inner sealing lid, bottom is equipped with gasket seal 12, guarantees the leakproofness of device, two simulations are penetrated
Hole pit shaft simulates perturbed well 2 and inspection well 5 respectively, and perturbed well 2 and inspection well 5 are caught in cabinets cavity by groove respectively, and two
It simulates part of the perforation pit shaft under inner sealing lid to design using particle size, wraps up anti-sand bedding course on the outside of two simulation perforation pit shafts
13, for preventing quartz sand from entering simulation perforation pit shaft, the top of perturbed well 2, which is equipped with, to be screwed water injection valve 1 and connects well head
Pressure gauge 10, equipped with the pit shaft flow-limiting valve 4 that is screwed, 5 bottom of inspection well connects bottom pressure device 14, case at the top of inspection well 5
Demarcation plate 11 can be lifted by being equipped in intracoelomic cavity, to place artificial reservoir rock sample 15, the simulation perforated hole of artificial reservoir rock sample two sides
Cylinder surrounding can insert the quartz sand of different-grain diameter and gradation, for simulating heterogeneous reservoir.
As a kind of preferred structure of the invention, two simulation perforation pit shafts are respectively intended to simulation perturbed well and inspection well,
It simulates and wraps up anti-sand bedding course on the outside of perforation pit shaft, for preventing quartz sand from entering simulation perforation pit shaft；There is water filling at the top of perturbed well
Valve, inspection well top are equipped with pit shaft flow-limiting valve；It injects water and filled quartz sand is entered by perturbed well, and flow through artificial reservoir rock
It is flowed out out of observation well shaft after sample, for simulating well testing process.
As a kind of preferred structure of the invention, setting can lift demarcation plate in cabinets cavity, for placing artificial reservoir
Rock sample, two simulation perforation pit shaft surroundings of artificial reservoir rock sample two sides can insert the quartz sand of different-grain diameter and gradation, be used to
Simulate heterogeneous reservoir.
As a kind of preferred structure of the invention, inner sealing lid is fixed by card slot and cabinets cavity, sealing external cover and circle
Tubular cabinet is tightly fastened by screw thread, further reinforces cabinets cavity and inner sealing lid.
Claims (3)
1. a kind of experimental rig of heterogeneous reservoir well test analysis, including cylindrical box, pressure relief valve, perturbed well, inspection well,
Water injection valve, sealing external cover, artificial reservoir rock sample, pit shaft flow-limiting valve, can lift demarcation plate, sealing ring, gasket at inner sealing lid
Piece, anti-sand bedding course, well head pressure gauge, bottom pressure device, it is characterised in that: pressure relief valve is set on cylindrical box, when necessary
The fluid inside cabinets cavity can be laid down；Setting can lift demarcation plate in cabinets cavity, to place artificial reservoir rock sample；In cabinet
The space of artificial reservoir rock sample two sides is used to place two simulation perforation pit shafts in chamber, and surrounding can insert different-grain diameter and gradation
Quartz sand；There is inner sealing lid at the top of cabinets cavity, inner sealing lid is connected by card slot with cabinets cavity, while being equipped at card slot
Sealing ring, inner sealing lid bottom are equipped with gasket seal；Sealing external cover and cylindrical box are tightly fastened by screw thread, thus into one
Step reinforces cabinets cavity and inner sealing lid；Two simulation perforation wellbore bottoms are caught in cabinets cavity by groove, are used to mould respectively
Quasi- perturbed well and inspection well；The bottom of inspection well is equipped with bottom pressure device, for measuring bottom pressure.
2. a kind of experimental rig of heterogeneous reservoir well test analysis according to claim 1, it is characterised in that: cabinets cavity
Inside, which is equipped with, can lift demarcation plate, for placing artificial reservoir rock sample, the simulation perforation pit shaft surrounding of artificial reservoir rock sample two sides
The quartz sand of different-grain diameter and gradation can be inserted, for simulating heterogeneous reservoir.
3. a kind of experimental rig of heterogeneous reservoir well test analysis according to claim 1, it is characterised in that: two simulations
Perforation pit shaft is respectively intended to simulation perturbed well and inspection well, anti-sand bedding course is wrapped up on the outside of simulation perforation pit shaft, for preventing quartz
Sand enters simulation perforation pit shaft；Part of two simulation perforation pit shafts under inner sealing lid is designed using particle size, the top of perturbed well
Portion is equipped with water injection valve, and the top of inspection well is equipped with pit shaft flow-limiting valve；It injects water and filled quartz sand, cocurrent is entered by perturbed well
It is flowed out out of observation well shaft after artificial reservoir rock sample, for simulating well testing process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910520861.5A CN110185435B (en) | 2019-06-17 | 2019-06-17 | Heterogeneous reservoir well testing analysis test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910520861.5A CN110185435B (en) | 2019-06-17 | 2019-06-17 | Heterogeneous reservoir well testing analysis test device |
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| CN110185435A true CN110185435A (en) | 2019-08-30 |
| CN110185435B CN110185435B (en) | 2023-01-17 |
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| CN201910520861.5A Active CN110185435B (en) | 2019-06-17 | 2019-06-17 | Heterogeneous reservoir well testing analysis test device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114109377A (en) * | 2021-11-29 | 2022-03-01 | 常州大学 | Experiment method for simulating well test of solution reservoir by ice burying and cave making |
| CN114109378A (en) * | 2021-11-29 | 2022-03-01 | 常州大学 | Experimental device and method system capable of simulating complex reservoir well testing analysis in series-parallel mode |
| CN115565445A (en) * | 2022-05-18 | 2023-01-03 | 常州大学 | Heterogeneous oil reservoir multi-well production and test simulation device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114109377A (en) * | 2021-11-29 | 2022-03-01 | 常州大学 | Experiment method for simulating well test of solution reservoir by ice burying and cave making |
| CN114109378A (en) * | 2021-11-29 | 2022-03-01 | 常州大学 | Experimental device and method system capable of simulating complex reservoir well testing analysis in series-parallel mode |
| CN114109378B (en) * | 2021-11-29 | 2023-10-20 | 常州大学 | Experimental device and method system capable of simulating well test analysis of complex reservoir in series and parallel |
| CN114109377B (en) * | 2021-11-29 | 2023-10-20 | 常州大学 | Experimental method for simulating broken solution reservoir well test by ice burying and cave building |
| CN115565445A (en) * | 2022-05-18 | 2023-01-03 | 常州大学 | Heterogeneous oil reservoir multi-well production and test simulation device and method |
| CN115565445B (en) * | 2022-05-18 | 2023-08-08 | 常州大学 | Heterogeneous oil reservoir multi-well production and test simulation device and method |
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| CN110185435B (en) | 2023-01-17 |
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