CN114109378A - Experimental device and method system capable of simulating complex reservoir well testing analysis in series-parallel mode - Google Patents
Experimental device and method system capable of simulating complex reservoir well testing analysis in series-parallel mode Download PDFInfo
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- CN114109378A CN114109378A CN202111432181.1A CN202111432181A CN114109378A CN 114109378 A CN114109378 A CN 114109378A CN 202111432181 A CN202111432181 A CN 202111432181A CN 114109378 A CN114109378 A CN 114109378A
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
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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
- E21B47/10—Locating fluid leaks, intrusions or movements
Abstract
The invention provides an experimental device and a method system capable of simulating the well test analysis of a complex reservoir in series and parallel, which can quickly realize the well test process of simulating various complex reservoirs by arranging a plurality of independent sand filling cylinders in series and parallel, have low cost, simple operation, strong independence and comprehensive functions, and effectively simulate the well test of various complex reservoirs with transverse heterogeneity, longitudinal heterogeneity, interlayer cross flow and development of large cavern bodies.
Description
Technical Field
The invention relates to the technical field of oil and gas field development experiments, in particular to an experimental device and an experimental method system for simulating complex reservoir well testing analysis, and particularly relates to an experimental device and an experimental method system capable of simulating complex reservoir well testing analysis in series and parallel.
Background
The well testing is a most common and effective oil deposit dynamic monitoring method which utilizes a pressure gauge to carry out pressure testing on a test well and analyze test data to obtain parameters of the test well and a stratum. In the well testing process, an exciting well and an observation well can be selected, after the working condition of the exciting well is changed, an unstable pressure change phenomenon can occur at the position of the observation well, the pressure change data of the observation well is recorded, and the inter-well reservoir parameters and the inter-well flow parameters can be calculated from the test data of the pressure of the observation well and the observation time. However, on-site well testing requires higher testing time, and shut-in and shut-down have higher production operating costs. At present, few experimental devices for determining the physical properties of the reservoir by adopting a well testing analysis method are adopted in a laboratory, and no experimental device and method for demonstrating complex reservoir well testing analysis are reported. The existing homogeneous reservoir well testing analysis experimental device can not simulate the well testing process of various complex reservoirs with transverse heterogeneity, longitudinal heterogeneity, interlayer channeling and development of large caverns, and how to design a test device and simply and quickly realize the well testing process of simulating various complex reservoirs becomes the key point of design and research.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to overcome the defects of the prior art, the invention provides an experimental device and a method system capable of simulating the well testing analysis of a complex reservoir in series and parallel connection.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides an experimental apparatus of complicated reservoir test-well analysis of parallelly connected simulation of can establishing ties, includes water injection pipeline, outlet line and a plurality of independently fills out a sand section of thick bamboo, independently fill out a sand section of thick bamboo and include box, sealed inner cup and sealed enclosing cover, sealed inner cup crimping at the box top, sealed enclosing cover dustcoat is outside sealed inner cup and will seal the inner cup and be fixed with the box indentation, sealed inner cup top be connected with two water filling ports through the control valve, be A water filling port and B water filling port respectively, the bottom half then is external to have the relief valve and connect out to have the delivery port, be A delivery port and B delivery port respectively corresponding every water filling port, A water filling port and A delivery port between through simulation pipeline intercommunication, this simulation pipeline be simulation pit shaft A, B water filling port and B delivery port between through simulation pipeline intercommunication, this simulation pipeline be simulation pit shaft B, the water filling port top correspond respectively and be equipped with well head manometer, The bottom of the box body is provided with a bottom hole pressure storage device corresponding to the lower part of the simulation pipeline.
The independent sand filling cylinder can be independently used for simulating a homogeneous reservoir, and the experimental device is strong in independence and high in availability ratio. After the independent sand filling cylinder is filled with quartz sand, the parallel independent sand filling cylinders simulate a multilayer commingled production reservoir, real reservoir rock samples with various permeability are not needed, and the experiment cost is low. The independent sand filling cylinders only need to be filled with quartz sand with uniform particle size, longitudinal heterogeneous reservoirs are simulated by connecting the independent sand filling cylinders in parallel, the connection mode is simple, and the experimental operability is strong. The independent sand filling cylinders after being connected in series and in parallel can simulate reservoirs with transverse heterogeneity, longitudinal heterogeneity, interlayer cross flow and large karst cave development, can meet the requirements of simulating the well testing process of various current multilayer commingled production reservoirs, and has comprehensive functions of experimental devices.
The experimental method of the experimental device capable of simulating the well testing analysis of the complex reservoir in series and parallel connection is adopted, and the complex reservoir well testing is simulated after the independent sand filling cylinders are connected in series or in parallel through pipelines.
When a multilayer commingled production reservoir well test without interlayer channeling is simulated, a plurality of independent sand filling barrels are sequentially arranged, quartz sand is filled in each independent sand filling barrel, a water injection port A of each independent sand filling barrel is respectively communicated with a water injection pipeline through a pipeline, and a water injection port B of each independent sand filling barrel is respectively communicated with a water outlet pipeline through a pipeline.
When a multilayer commingled production reservoir well test with interlayer flow is simulated, a plurality of independent sand filling barrels are sequentially arranged, quartz sand is filled in each independent sand filling barrel, a water injection port A of each independent sand filling barrel is respectively communicated with a water injection pipeline through a pipeline, and a water injection port B of each independent sand filling barrel is respectively communicated with a water outlet pipeline through a pipeline; the water outlet A of the previous independent sand filling cylinder is communicated with the water outlet A of the next independent sand filling cylinder through a pipeline, and the water outlet B of the previous independent sand filling cylinder is communicated with the water outlet B of the next independent sand filling cylinder through a pipeline.
When a well test of a multi-zone composite reservoir is simulated, a plurality of independent sand filling barrels are sequentially arranged, quartz sand is filled in each independent sand filling barrel, an A water filling port of a first independent sand filling barrel is communicated with a water filling pipeline through a pipeline, a B water filling port of a previous independent sand filling barrel is communicated with the A water filling port of a next independent sand filling barrel through a pipeline, and a B water filling port of the last independent sand filling barrel is communicated with a water outlet pipeline.
When well testing of a multi-zone composite reservoir is simulated and interface resistance exists, the independent sand filling cylinders are divided into two groups, the two groups of independent sand filling cylinders are distributed in a staggered mode, quartz sand is filled in the first group of independent sand filling cylinders and is arranged in sequence, and water is filled in the second group of independent sand filling cylinders and is arranged in sequence; in the first group of independent sand filling barrels, the water injection port A of the first independent sand filling barrel is communicated with a water injection pipeline through a pipeline, the water injection port B of the previous independent sand filling barrel is communicated with the water injection port A of the next independent sand filling barrel through a pipeline, and the water injection port B of the last independent sand filling barrel is communicated with a water outlet pipeline; in the second group of independent sand filling barrels, each independent sand filling barrel is correspondingly distributed between two adjacent independent sand filling barrels of the first group of independent sand filling barrels, an A water injection port of each independent sand filling barrel in the second group of independent sand filling barrels is connected with a B water outlet of the previous independent sand filling barrel filled with quartz sand through a pipeline, and a B water injection port is connected with a A water outlet of the next independent sand filling barrel filled with quartz sand through a pipeline.
When a well test of a fracture-cavity reservoir with a fracture-cavity body is simulated, a plurality of independent sand filling cylinders are sequentially arranged, fillers in two adjacent independent sand filling cylinders are different, water or quartz sand is respectively filled in the independent sand filling cylinders in a staggered distribution mode according to the cylinders, and the first independent sand filling cylinder is filled with quartz sand; the water injection port A of the first independent sand filling barrel is communicated with a water injection pipeline through a pipeline, the water injection port B of the previous independent sand filling barrel is communicated with the water injection port A of the next independent sand filling barrel through a pipeline, and the water injection port B of the last independent sand filling barrel is communicated with a water outlet pipeline.
When a well test of a multi-layer and multi-zone composite reservoir without interlayer channeling is simulated, the plurality of independent sand filling cylinders are divided into at least three groups, and each group of independent sand filling cylinders has the same number and is in one-to-one correspondence with other groups of independent sand filling cylinders and are sequentially arranged; the water inlet A of each independent sand filling cylinder in the first group of independent sand filling cylinders is communicated with a water inlet pipeline through a pipeline; the water injection port A of each independent sand filling barrel in the next group of independent sand filling barrels is communicated with the water injection port B of the corresponding independent sand filling barrel in the previous group of independent sand filling barrels through a pipeline; and the water injection port B of each independent sand filling barrel in the last group of independent sand filling barrels is communicated with a water outlet pipeline through a pipeline.
When a well test of a multi-layer and multi-zone composite reservoir with interlayer cross flow is simulated, a plurality of independent sand filling cylinders are divided into at least three groups, and each group of independent sand filling cylinders has the same number and is in one-to-one correspondence with other groups of independent sand filling cylinders and are sequentially arranged; the water inlet A of each independent sand filling cylinder in the first group of independent sand filling cylinders is communicated with a water inlet pipeline through a pipeline; the water injection port A of each independent sand filling barrel in the next group of independent sand filling barrels is communicated with the water injection port B of the corresponding independent sand filling barrel in the previous group of independent sand filling barrels through a pipeline; the water injection port B of each independent sand filling barrel in the last group of independent sand filling barrels is communicated with a water outlet pipeline through a pipeline; in each group of independent sand filling cylinders, the water outlet A of the previous independent sand filling cylinder is communicated with the water outlet A of the next independent sand filling cylinder through a pipeline, and the water outlet B of the previous independent sand filling cylinder is communicated with the water outlet B of the next independent sand filling cylinder through a pipeline.
The experimental device and the method system for simulating the well testing analysis of the complex reservoir stratum in series and parallel connection have the advantages that the well testing process of various complex reservoir stratum can be quickly simulated by the series and parallel connection arrangement of the independent sand filling cylinders, the experimental device is low in cost, simple to operate, strong in independence and comprehensive in function, and well testing simulation of various complex reservoir stratum with transverse heterogeneity, longitudinal heterogeneity, interlayer cross flow and large-scale developed cavern bodies is effectively achieved.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic structural diagram of an independent sand filling barrel of the invention.
FIG. 2 is a cross-sectional view of the stand-alone sand-fill cartridge of the present invention.
FIG. 3 is a schematic pipeline connection for simulating a multi-layer commingled reservoir well test without zonal channeling according to the present invention.
FIG. 4 is a schematic pipeline connection for simulating a multi-layer commingled reservoir well test in the presence of zonal channeling according to the present invention.
FIG. 5 is a schematic diagram of a pipeline connection for well testing for simulating a multizone complex reservoir in accordance with the present invention.
FIG. 6 is a schematic diagram of the pipeline connections for simulating well testing of a multi-zonal composite reservoir in the presence of interfacial resistance according to the present invention.
FIG. 7 is a schematic diagram of a pipeline string used in the present invention to simulate well testing of a fractured-vuggy reservoir in which fractured-vuggy bodies are present.
FIG. 8 is a schematic diagram of the pipeline connections for well testing of a multi-zonal composite reservoir of the present invention for simulating a multi-zonal composite reservoir without zonal channeling.
FIG. 9 is a schematic diagram of a pipeline connection for well testing for simulating a multi-zonal composite reservoir in which zonal channeling is present in accordance with the present invention.
In the figure, 1, a water injection port A2, a water injection port B3, a water outlet A4, a water outlet B5, a sealing inner cover 6, a sealing outer cover 7, a box body 8, a pressure release valve 9, a simulation pipeline 10, a control valve 11, a bottom hole pressure storage 12, a water injection pipeline 13 and a water outlet pipeline.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams illustrating the basic structure of the present invention only in a schematic manner, and thus show only the constitution related to the present invention, and directions and references (e.g., upper, lower, left, right, etc.) may be used only to help the description of the features in the drawings. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the claimed subject matter is defined only by the appended claims and equivalents thereof.
An experimental device capable of simulating complex reservoir well testing analysis in series and parallel connection comprises a water injection pipeline 12, a water outlet pipeline 13 and a plurality of independent sand filling cylinders.
As shown in fig. 1 and 2, the independent sand filling cylinder comprises a box body 7, a sealing inner cover 5 and a sealing outer cover 6, wherein the sealing inner cover 5 is pressed on the top of the box body 7, and the sealing outer cover 6 covers the sealing inner cover 5 and retracts and fixes the sealing inner cover 5 and the box body 7. In the independent sand filling cylinder, the sealing inner cover 5 and the box body 7 are sealed by a sealing ring and a sealing gasket. The top of the sealing inner cover 5 is connected with two water filling ports through a control valve 10, the water filling ports are respectively an A water filling port 1 and a B water filling port 2, the bottom of the box body 7 is externally connected with a pressure release valve 8 and corresponds to each water filling port to be connected with a water outlet, the water filling ports are respectively an A water outlet 3 and a B water outlet 4, the A water filling port 1 and the A water outlet 3 are communicated through a simulation pipeline 9, the simulation pipeline 9 is a simulation shaft A, the B water filling port 2 and the B water outlet 4 are communicated through the simulation pipeline 9, and the simulation pipeline 9 is a simulation shaft B. In actual design, in order to ensure the safety of the pipeline, the outer peripheral surface of the simulation pipeline 9 is also wrapped with a shakeout cushion layer. The top of the water injection port is respectively and correspondingly provided with a well head pressure gauge, and the bottom of the box body 7 is provided with a well bottom pressure storage 11 corresponding to the lower part of the simulation pipeline 9.
By adopting the experimental device capable of simulating the well testing analysis of the complex reservoir in series and parallel connection, the well testing of the complex reservoir can be simulated after the independent sand filling cylinders are connected in series or in parallel through the pipeline. The specific experimental steps are as follows:
1. in the independent sand filling barrel, two simulation mineshafts are used for respectively simulating an exciting well and an observation well, a sand prevention cushion layer is arranged outside the simulation mineshafts to prevent filling sand from entering the mineshafts, a wellhead pressure gauge is used for displaying wellhead pressure change, and control valves 10 of two water injection ports are used for controlling water injection, stopping and the like. After a pressure release valve 8 at the bottom of the device is closed, quartz sand with a preselected particle size can be filled in the box body 7 to simulate a homogeneous reservoir, or a fluid source for simulating large karst cave development of the reservoir or interlayer fluid channeling is filled in the cavity of the box body 7. The sealing between the inner cover 5 and the box body 7 and between the inner cover and the cavity filling sand body is realized through a sealing gasket and a sealing ring, and finally, the sealing of the whole device is realized through the outer cover 6.
Step 2: the water injection ports and the water outlets of a plurality of independent sand filling cylinders are connected through pipelines by adopting a serial and parallel connection mode, and various pre-selected complex reservoir testing analytical devices are simulated in sequence.
And step 3: the working system of the activated well is changed by controlling the valve 10 to inject water and stop injecting, and data of a bottom hole pressure memory 11 of the observation well and data of observation time are output, and the data can be used for calculating reservoir physical property parameters and interwell flow parameters.
Through connecting a plurality of independent sand filling cylinders in series and in parallel, the reservoir with transverse heterogeneity, longitudinal heterogeneity, interlayer channeling and large karst cave development can be simulated, the well testing process of various multilayer commingled production reservoirs at present can be simulated, and the experimental device has comprehensive functions. The concrete expression is as follows: firstly, after the independent sand filling cylinders are connected in series, a multi-region composite reservoir with transverse heterogeneous characteristics can be simulated; after the independent sand filling cylinders are connected in parallel, a multilayer commingled production reservoir with longitudinal heterogeneous characteristics can be simulated; thirdly, after the bottoms of the independent sand filling cylinders are connected in parallel, a multilayer commingled production reservoir layer with layers can be simulated; fourthly, the fluid filled in the sand filling cylinders is connected with each independent sand filling cylinder in series, and the fracture-cave carbonate reservoir of the large karst cave can be simulated; and fifthly, simulating the multi-zone and multi-layer commingled production reservoir by combining the independent sand filling cylinders in series and in parallel.
As shown in FIG. 3, the experimental device can be used for simulating a multi-layer commingled production reservoir well test without interlayer cross flow in a conversion connection mode. The simulation steps are as follows:
selecting coarse, medium and fine 3 types of quartz sand, and respectively simulating high, medium and low 3 types of permeability reservoirs;
filling 3 types of quartz sand into the cavity in the box of 3 independent sand filling cylinders respectively, compacting the filled quartz sand, and then covering a sealing cover for sealing;
thirdly, placing independent sand filling cylinders filled with fine, medium and coarse quartz sand in sequence, completing the connection of pipelines according to the parallel connection mode of the figure 3, and simulating the well testing process of the multilayer commingled production reservoir with positive rhythm deposition characteristics;
similarly, sand filling cylinders filled with coarse, medium and fine quartz sand are sequentially placed, the pipelines are connected in a parallel connection mode according to the figure 3, and the well testing process of the multilayer commingled production reservoir with the characteristic of reverse rhythm deposition is simulated.
As shown in FIG. 4, the experimental device can be used for simulating a multi-layer commingled production reservoir well test with interlayer cross flow by changing a wiring mode. The simulation steps are as follows:
selecting coarse, medium and fine 3 types of quartz sand, and respectively simulating high, medium and low 3 permeability reservoirs;
② filling 3 kinds of quartz sand into 3 independent sand filling cylinders respectively
After compacting the filled quartz sand in the inner cavity of the box, covering a sealing cover for sealing;
thirdly, placing sand filling cylinders filled with fine, medium and coarse quartz sand in sequence, completing the connection of pipelines according to the parallel connection mode of the figure 4, and simulating the well testing process of the multilayer channeling co-production reservoir with positive rhythm deposition characteristics;
similarly, sand filling cylinders filled with coarse, medium and fine quartz sand are sequentially placed, the pipelines are connected in a parallel connection mode according to the diagram 4, and the multilayer channeling co-production reservoir well testing process with the characteristic of reverse rhythm deposition is simulated.
As shown in FIG. 5, the experimental device can be used for simulating well testing of a multi-zone composite reservoir through a wiring changing mode. The simulation steps are as follows:
selecting coarse, medium and fine 3 types of quartz sand to simulate high, medium and low 3 types of permeability reservoirs;
filling 3 types of quartz sand into the cavity in the box of 3 independent sand filling cylinders respectively, compacting the filled quartz sand, and then covering a sealing cover for sealing;
thirdly, sand filling cylinders filled with fine, medium and coarse quartz sand are sequentially placed, the pipeline connection is completed in a series connection mode according to the figure 5, and the well testing process of the multi-region composite reservoir with good transverse physical property is simulated;
similarly, sand filling cylinders filled with coarse, medium and fine quartz sand are sequentially placed, the pipelines are connected in series according to the figure 5, and the well testing process of the multi-zone composite reservoir with the deteriorated transverse physical properties is simulated.
As shown in FIG. 6, the experimental device can be used for simulating well testing of a multi-zone composite reservoir stratum in the presence of interfacial resistance by changing a wiring mode. The simulation steps are as follows:
selecting coarse, medium and fine 3 types of quartz sand, respectively simulating high, medium and low 3 permeability reservoirs, and simultaneously simulating the reservoir with large holes by using an unfilled sand filling cylinder;
filling 3 types of quartz sand into the cavity in the first group of 3 independent sand filling cylinders respectively, compacting the filled quartz sand, and then covering a sealing cover for sealing;
filling the water body after the second group of sand filling cylinders which are not filled with the sand bodies are directly sealed;
sequentially placing 5 sand filling cylinders for filling fine particles, water, medium particles, water and coarse particles, completing the connection of pipelines according to a series connection mode of a figure 6, and simulating a multi-zone composite reservoir well testing process with good transverse physical properties and interface resistance;
similarly, 5 sand filling cylinders filled with fine grains, water, medium grains, water and coarse grains are sequentially placed, the pipeline connection is completed in a series connection mode according to the figure 6, and the multi-zone composite reservoir well testing process with poor transverse physical properties and interface resistance is simulated.
As shown in FIG. 7, the experimental device can be used for simulating well testing of a fracture-cavity reservoir with a fracture-cavity body by changing a wiring mode. The simulation steps are as follows:
selecting coarse and fine 2 types of quartz sand, respectively simulating a high and low 2 types of permeability reservoir, and simulating a reservoir with large holes by using an unfilled sand filling cylinder;
filling 2 types of quartz sand into the cavity in the box of 2 independent sand filling cylinders respectively, compacting the filled quartz sand, and then covering a sealing cover for sealing;
thirdly, filling the water body after the independent sand filling cylinder which is not filled with the sand body is directly sealed;
and fourthly, sequentially placing 3 independent sand filling cylinders for filling fine particles, water and coarse particles, completing the connection of pipelines according to the series connection mode of the figure 7, and simulating the well testing process of the fracture-cave carbonate reservoir with large karst caves.
As shown in FIG. 8, the experimental device can be used for simulating well testing of a multilayer multi-zone composite reservoir without interlayer cross flow through a wiring conversion mode. The simulation steps are as follows:
selecting coarse, medium and fine 3 types of quartz sand, and respectively simulating high, medium and low 3 types of permeability reservoirs;
filling 3 types of quartz sand into the cavity in the box of 9 independent sand filling cylinders respectively, compacting the filled quartz sand, and then covering a sealing cover for sealing;
thirdly, the independent sand filling cylinders filled with the fine, medium and coarse quartz sand are divided into three groups and sequentially placed, the fine, medium and coarse quartz sand is respectively filled in each group, the connection of pipelines is completed according to the parallel connection mode of the figure 8, and the well testing process of the multilayer multi-region composite reservoir stratum is simulated.
As shown in FIG. 9, the experimental device can be used for simulating well testing of a multi-layer and multi-zone composite reservoir with interlayer cross flow by changing the wiring mode. The simulation steps are as follows:
selecting coarse, medium and fine 3 types of quartz sand, and respectively simulating high, medium and low 3 types of permeability reservoirs;
filling 3 types of quartz sand into the cavity in the box of 9 independent sand filling cylinders respectively, compacting the filled quartz sand, and then covering a sealing cover for sealing;
thirdly, the independent sand filling cylinders filled with the fine, medium and coarse quartz sand are divided into three groups and sequentially placed, the fine, medium and coarse quartz sand is respectively filled in each group, the pipeline connection is completed in a parallel connection mode according to the figure 9, and the well testing process of the multilayer multi-region composite reservoir with interlayer channeling is simulated.
In the simulation process, the reservoirs with transverse heterogeneity, longitudinal heterogeneity, interlayer channeling and large-scale karst cave development can be simulated by connecting a plurality of independent sand filling cylinders for simulating the uniform reservoirs in series and in parallel, the well testing process of various current multilayer commingled production reservoirs can be simulated, the experiment device is comprehensive in function, the well testing process of various complex reservoirs can be simulated simply and rapidly, and the experiment device is low in cost, simple to operate, strong in independence and comprehensive in function.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (9)
1. The utility model provides an experimental apparatus that can connect in series and parallelly connect simulation complicated reservoir test well analysis which characterized in that: including water injection pipeline (12), outlet line (13) and a plurality of independently fill out a sand section of thick bamboo, independently fill out a sand section of thick bamboo and include box (7), sealed inner cup (5) and sealed enclosing cover (6), sealed inner cup (5) crimping at box (7) top, sealed enclosing cover (6) dustcoat is outside sealed inner cup (5) and will seal inner cup (5) and box (7) indentation fixed, sealed inner cup (5) top be connected with two water filling ports through control valve (10), be A water filling port (1) and B water filling port (2) respectively, box (7) bottom is then external to have relief valve (8) and correspond every water filling port and connect out to have the delivery port, be A delivery port (3) and B delivery port (4) respectively, A water filling port (1) and A delivery port (3) between communicate through simulation pipeline (9), this simulation pipeline (9) are simulation pit shaft A, the water injection port B (2) is communicated with the water outlet B (4) through a simulation pipeline (9), the simulation pipeline (9) is a simulation shaft B, the top of the water injection port is correspondingly provided with a wellhead pressure gauge, and the bottom of the box body (7) is correspondingly provided with a bottom pressure storage device (11) below the simulation pipeline (9).
2. An experimental method of an experimental device capable of simulating complex reservoir well testing analysis in series and parallel connection is characterized in that: the experimental device capable of simulating the well testing analysis of the complex reservoir in series and parallel connection according to claim 1 is adopted to simulate the well testing of the complex reservoir after the independent sand filling cylinders are connected in series or in parallel through pipelines.
3. The experimental method of the experimental device capable of simulating the well testing analysis of the complex reservoir in series and parallel connection according to claim 2, wherein: when a multilayer commingled production reservoir well test without interlayer channeling is simulated, a plurality of independent sand filling barrels are sequentially arranged, quartz sand is filled in each independent sand filling barrel, a water injection port A (1) of each independent sand filling barrel is respectively communicated with a water injection pipeline (12) through a pipeline, and a water injection port B (2) of each independent sand filling barrel is respectively communicated with a water outlet pipeline (13) through a pipeline.
4. The experimental method of the experimental device capable of simulating the well testing analysis of the complex reservoir in series and parallel connection according to claim 2, wherein: when a multilayer commingled production reservoir well test with interlayer flow is simulated, a plurality of independent sand filling barrels are sequentially arranged, quartz sand is filled in each independent sand filling barrel, a water injection port A (1) of each independent sand filling barrel is respectively communicated with a water injection pipeline (12) through a pipeline, and a water injection port B (2) of each independent sand filling barrel is respectively communicated with a water outlet pipeline (13) through a pipeline; the water outlet A (3) of the previous independent sand filling cylinder is communicated with the water outlet A (3) of the next independent sand filling cylinder through a pipeline, and the water outlet B (4) of the previous independent sand filling cylinder is communicated with the water outlet B (4) of the next independent sand filling cylinder through a pipeline.
5. The experimental method of the experimental device capable of simulating the well testing analysis of the complex reservoir in series and parallel connection according to claim 2, wherein: when a well test of a multi-zone composite reservoir is simulated, a plurality of independent sand filling barrels are sequentially arranged, quartz sand is filled in each independent sand filling barrel, an A water filling port (1) of a first independent sand filling barrel is communicated with a water filling pipeline (12) through a pipeline, a B water filling port (2) of a previous independent sand filling barrel is communicated with an A water filling port (1) of a next independent sand filling barrel through a pipeline, and a B water filling port (2) of a last independent sand filling barrel is communicated with a water outlet pipeline (13).
6. The experimental method of the experimental device capable of simulating the well testing analysis of the complex reservoir in series and parallel connection according to claim 2, wherein: when well testing of a multi-zone composite reservoir is simulated and interface resistance exists, the independent sand filling cylinders are divided into two groups, the two groups of independent sand filling cylinders are distributed in a staggered mode, quartz sand is filled in the first group of independent sand filling cylinders and is arranged in sequence, and water is filled in the second group of independent sand filling cylinders and is arranged in sequence; in the first group of independent sand filling cylinders, the water injection port A (1) of the first independent sand filling cylinder is communicated with a water injection pipeline (12) through a pipeline, the water injection port B (2) of the previous independent sand filling cylinder is communicated with the water injection port A (1) of the next independent sand filling cylinder through a pipeline, and the water injection port B (2) of the last independent sand filling cylinder is communicated with a water outlet pipeline (13); in the second group of independent sand filling barrels, each independent sand filling barrel is correspondingly distributed between two adjacent independent sand filling barrels of the first group of independent sand filling barrels, an A water injection port (1) of each independent sand filling barrel in the second group of independent sand filling barrels is connected with a B water outlet (4) of the previous independent sand filling barrel filled with the quartz sand through a pipeline, and a B water injection port (2) is connected with an A water outlet (3) of the next independent sand filling barrel filled with the quartz sand through a pipeline.
7. The experimental method of the experimental device capable of simulating the well testing analysis of the complex reservoir in series and parallel connection according to claim 2, wherein: when a well test of a fracture-cavity reservoir with a fracture-cavity body is simulated, a plurality of independent sand filling cylinders are sequentially arranged, fillers in two adjacent independent sand filling cylinders are different, water or quartz sand is respectively filled in the independent sand filling cylinders in a staggered distribution mode according to the cylinders, and the first independent sand filling cylinder is filled with quartz sand; the A water filling port (1) of the first independent sand filling barrel is communicated with a water filling pipeline (12) through a pipeline, the B water filling port (2) of the previous independent sand filling barrel is communicated with the A water filling port (1) of the next independent sand filling barrel through a pipeline, and the B water filling port (2) of the last independent sand filling barrel is communicated with a water outlet pipeline (13).
8. The experimental method of the experimental device capable of simulating the well testing analysis of the complex reservoir in series and parallel connection according to claim 2, wherein: when a well test of a multi-layer and multi-zone composite reservoir without interlayer channeling is simulated, the plurality of independent sand filling cylinders are divided into at least three groups, and each group of independent sand filling cylinders has the same number and is in one-to-one correspondence with other groups of independent sand filling cylinders and are sequentially arranged; the water inlet A of each independent sand filling cylinder in the first group of independent sand filling cylinders is communicated with a water inlet pipeline through a pipeline; the water injection port A (1) of each independent sand filling barrel in the next group of independent sand filling barrels is communicated with the water injection port B (2) of the independent sand filling barrel corresponding to the previous group of independent sand filling barrels through a pipeline; the water injection port B (2) of each independent sand filling barrel in the last group of independent sand filling barrels is communicated with a water outlet pipeline (13) through a pipeline.
9. The experimental method of the experimental device capable of simulating the well testing analysis of the complex reservoir in series and parallel connection according to claim 2, wherein: when a well test of a multi-layer and multi-zone composite reservoir with interlayer cross flow is simulated, a plurality of independent sand filling cylinders are divided into at least three groups, and each group of independent sand filling cylinders has the same number and is in one-to-one correspondence with other groups of independent sand filling cylinders and are sequentially arranged; the water inlet A of each independent sand filling cylinder in the first group of independent sand filling cylinders is communicated with a water inlet pipeline through a pipeline; the water injection port A (1) of each independent sand filling barrel in the next group of independent sand filling barrels is communicated with the water injection port B (2) of the independent sand filling barrel corresponding to the previous group of independent sand filling barrels through a pipeline; the water injection port B (2) of each independent sand filling barrel in the last group of independent sand filling barrels is communicated with a water outlet pipeline (13) through a pipeline; in each group of independent sand filling cylinders, the water outlet A (3) of the previous independent sand filling cylinder is communicated with the water outlet A (3) of the next independent sand filling cylinder through a pipeline, and the water outlet B (4) of the previous independent sand filling cylinder is communicated with the water outlet B (4) of the next independent sand filling cylinder through a pipeline.
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