CN111896280B - Salt cavern storage interlayer block falling and settling characteristic experimental device and method - Google Patents
Salt cavern storage interlayer block falling and settling characteristic experimental device and method Download PDFInfo
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- CN111896280B CN111896280B CN201910370602.9A CN201910370602A CN111896280B CN 111896280 B CN111896280 B CN 111896280B CN 201910370602 A CN201910370602 A CN 201910370602A CN 111896280 B CN111896280 B CN 111896280B
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Abstract
The invention provides an experimental device and an experimental method for the falling block sedimentation characteristic of an interlayer of a salt cavern storage, wherein the device comprises the following components: the device comprises a water tank, a stone projector, a reflecting device and an image acquisition and processing device; the top of the water tank is provided with an opening for containing experimental liquid; the stone thrower is arranged at an opening at the top of the water tank and used for placing the experiment dropping blocks and sinking the experiment dropping blocks into the experiment liquid; the reflection device is arranged in a first direction outside the water tank and used for reflecting first settlement image data of the experiment falling block in the first direction to the image acquisition and processing device; the image acquisition and processing device is arranged outside the water tank in a second direction and used for acquiring second settlement image data of the experiment falling block in the second direction and first settlement image data of the experiment falling block in the first direction reflected by the reflecting device, and determining the settlement characteristic of the experiment falling block according to the first settlement image data and the second settlement image data. The invention researches the settlement process of falling blocks after the interlayer in the salt cavern storage collapses, and determines the settlement characteristic of the falling blocks in the experiment.
Description
Technical Field
The invention belongs to the technical field of underground storage development, and particularly relates to an experimental device and an experimental method for the falling block sedimentation characteristic of an interlayer of a salt cavern storage.
Background
Oil gas storage by utilizing an underground space formed by deep salt mine water solution mining becomes an international preferred oil gas storage mode. Salt mines in China are mostly in a lamellar structure formed by lake phase deposition, have obvious multi-interlayer characteristics and bring many challenges to reservoir water-soluble cavity construction.
The single-well oil pad convection method water-soluble cavity has a plurality of outstanding advantages in the aspect of cavity form control, and the formed cavity has good stability and is widely applied. However, when the method is used for building cavities in a multi-interlayer salt layer, the interlayers are fractured and collapsed, the phenomena of collapse, block falling and sedimentation are formed, the cavity building tubular columns are damaged by impact, and the cavity shape control and the whole storage cavity building failure are caused.
At present, salt cavern reservoir experimental research is mainly focused on morphological control of cavities and cavity stability, and only initial mechanism research is carried out on interlayer collapse and block falling research, and quantitative evaluation and analysis on a settling process after the block falling and settling are lacked.
Disclosure of Invention
The embodiment of the invention provides a salt cavern reservoir interlayer falling block sedimentation characteristic experimental device, which can be used for researching the falling block sedimentation process after an interlayer in a multi-interlayer salt cavern reservoir collapses, and comprises the following components:
the device comprises a water tank, a stone projector, a reflecting device and an image acquisition and processing device;
the top of the water tank is provided with an opening for containing experimental liquid;
the stone thrower is arranged at an opening at the top of the water tank and used for placing the experiment dropping blocks and sinking the experiment dropping blocks into the experiment liquid;
the reflection device is arranged in a first direction outside the water tank and used for reflecting first settlement image data of the experiment falling block in the first direction to the image acquisition and processing device;
the image acquisition and processing device is arranged outside the water tank in a second direction and used for acquiring second settlement image data of the experiment falling block in the second direction and first settlement image data of the experiment falling block in the first direction reflected by the reflecting device, and determining the settlement characteristic of the experiment falling block according to the first settlement image data and the second settlement image data.
The embodiment of the invention also provides an experimental method using the device for the interlayer block falling and sedimentation characteristics of the salt cavern reservoir, which comprises the following steps:
placing the experimental falling blocks in a stone thrower, and sinking the experimental falling blocks into experimental liquid;
the image acquisition and processing device acquires second settlement image data of the experiment falling block in the second direction and first settlement image data of the experiment falling block reflected by the reflecting device in the first direction, and the experiment falling block settlement characteristic is determined according to the first settlement image data and the second settlement image data.
According to the salt cavern reservoir interlayer falling block sedimentation characteristic experimental device and method, the falling block sedimentation process after the interlayer in the multi-interlayer salt cavern reservoir collapses is researched, the sedimentation image data after the experiment falling block sedimentation is quantitatively analyzed, the falling block sedimentation characteristic is determined, the real cavity building operation process is simulated, the accuracy and the applicability of experimental tests are improved, and the device and method have important significance for deeply researching the falling block mechanism and quantitatively evaluating the influence of the falling block.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts. In the drawings:
fig. 1 is a schematic diagram of an experimental device for settlement characteristics of an interlayer falling block of a salt cavern reservoir in the embodiment of the invention.
Fig. 2 is a schematic diagram of an experiment block falling of an interlayer block falling sedimentation characteristic experiment device of a salt cavern reservoir in the embodiment of the invention.
Fig. 3 is a schematic diagram of an experimental method of an experimental device for settling characteristics of an interlayer falling block of a salt cavern reservoir in an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.
The embodiment of the invention provides a salt cavern reservoir interlayer falling block sedimentation characteristic experimental device, which can be used for researching the falling block sedimentation process after an interlayer in a multi-interlayer salt cavern reservoir collapses, and comprises the following components:
the device comprises a water tank, a stone projector, a reflecting device and an image acquisition and processing device;
the top of the water tank is provided with an opening for containing experimental liquid;
the stone thrower is arranged at an opening at the top of the water tank and used for placing the experiment dropping blocks and sinking the experiment dropping blocks into the experiment liquid;
the reflection device is arranged in a first direction outside the water tank and used for reflecting first settlement image data of the experiment falling block in the first direction to the image acquisition and processing device;
the image acquisition and processing device is arranged outside the water tank in a second direction and used for acquiring second settlement image data of the experiment falling block in the second direction and first settlement image data of the experiment falling block in the first direction reflected by the reflecting device, and determining the settlement characteristic of the experiment falling block according to the first settlement image data and the second settlement image data.
As shown in fig. 1, a schematic diagram of an interlayer block-falling sedimentation characteristic experimental device of a salt cavern reservoir in an embodiment of the present invention and fig. 2, a schematic diagram of an experiment block-falling sedimentation characteristic experimental device of an interlayer block-falling sedimentation characteristic experimental device of a salt cavern reservoir in an embodiment of the present invention are shown, and an interlayer block-falling sedimentation characteristic experimental device of a salt cavern reservoir in an embodiment of the present invention includes: the device comprises a water tank 1, a stone projector 2, an experimental falling block 3, an illuminating lamp 4, a reflecting device 5, a camera 6, a computer 7, a rack 8, a longitudinal scale 11, a transverse scale 12, a hinge 21 (comprising a first hinge 211 and a second hinge 212), a support 23, a traction rope 22, a lamp holder 41, a water-facing surface 31, a camera lens 61, a lens 62, an image sensor 63, a ray 65, a ray 66, a reflection line 67, a reflection line 68 and a data line 64.
When the experimental device for the settlement characteristics of the interlayer falling blocks of the salt cavern reservoir is implemented specifically, the top of the water tank 1 is provided with an opening for containing experimental liquid; in the embodiment, the basin 1 can be the cuboid that the top has the open-ended, can also be the top has the open-ended cylinder, more can be the prism that the top has the open-ended etc. basin 1 can include the polyhedron of multiple form, can be used for splendid attire experiment liquid, falls piece 3 with the experiment and sinks wherein, falls the piece and subsides the characteristic experiment. In the embodiment, in order that the image acquisition and processing device can clearly shoot sedimentation image data of the experimental falling blocks in the water tank 1, the water tank 1 is made of transparent materials; in one example of the embodiment of the invention, the water tank 1 is made of transparent toughened glass, is transparent and has high mechanical strength, and can bear the impact of the experiment dropping block 3 with heavy weight. In the embodiment, for accurate quick acquisition experiment fall the subsidence characteristic of piece 3, basin 1 can adopt the top to have the open-ended cuboid, marks a side mark of cuboid basin as the first direction, will mark the second side adjacent with the first direction as the second direction, falls the subsidence image data of piece 3 at the first direction and the second direction of cuboid basin through shooting the experiment, can obtain the experiment and fall the subsidence characteristic of piece 3 at the settlement in-process. In an embodiment, the experimental chipping 3 for performing the chipping settlement experiment includes: cuboids of various sizes and densities; in concrete implementation, the shape of the experimental falling block 3 is not limited by a cuboid, and can be a cube, a sphere, an ellipsoid, a prism, a triangular pyramid, a prism, a regular polyhedron or an irregular polyhedron, and the like.
The experiment of falling block 3 is completed before the experiment of falling block sedimentation characteristic, and the specific manufacturing method comprises the following steps: determining the thickness of each interlayer and the lithology of each interlayer according to the well logging information of the completed well of the salt cavern reservoir; determining the size and density of collapsed blocks of the interlayer according to the thickness of the interlayer and the lithology of each interlayer; determining the size and density of the experimental falling blocks by applying a similar theory according to the size and density of the falling blocks of the interlayer; and manufacturing an experiment dropping block 3 according to the size and the density of the experiment dropping block. Because the actual collapsed blocks are generally large, the size of the actual collapsed blocks is usually in the order of magnitude of meters, even ten meters or one hundred meters, when the actual collapsed blocks are manufactured and tested, the size and the density of the actual collapsed blocks are reduced by adopting a similar theory, the size of the manufactured test collapsed blocks 3 is generally in the centimeter, and the density of the test collapsed blocks 3 is generally the same as the density of the actual collapsed blocks. After the preparation that the piece 3 was fallen in above-mentioned experiment is accomplished, fall the accuracy and the definition that the piece 3 subsides the image data in order to strengthen image acquisition processing apparatus collection experiment, still need fall the surface that piece 3 in the experiment and set up the phosphor screen for image acquisition processing apparatus can more fall the subside image data that piece 3 was fallen in clear and accurate acquisition experiment. When a falling block sedimentation experiment is carried out, as shown in fig. 2, the experiment falling block schematic diagram adopted by the salt cavern reservoir interlayer falling block sedimentation characteristic experiment device in the embodiment of the invention is shown, the experiment falling block 3 adopts a cuboid, the face of the cuboid facing the experiment liquid is marked as the upstream face 31, and as the experiment falling block 3 in the embodiment adopts the cuboid experiment falling block, the cuboid experiment falling block has three groups of same faces, so that when the falling block sedimentation experiment is carried out, three different faces of the cuboid experiment falling block can be marked as different upstream faces, and when the falling block sedimentation experiment is carried out every time, the cuboid experiment falling block 3 sinks into the experiment liquid with different upstream faces. In specific implementation, if the shape of the experimental falling block 3 is other shapes, it is necessary to determine how many different surfaces the experimental falling block 3 has, and the different surfaces are sequentially used as the upstream surface 31 to sink the experimental liquid.
The water tank 1 can be used for containing experimental liquid in the embodiment, and before a falling block sedimentation experiment is performed, the height of the experimental liquid in the water tank 1 needs to be determined; in an embodiment, the way of determining the height of the experimental liquid in the basin 1 comprises: determining the distance between the interlayer and the bottom of the salt cavern according to the well logging information of the finished well of the salt cavern reservoir; the height of the test liquid in the water tank 1 is determined by applying a similar theory according to the distance between the interlayer and the bottom of the salt cavity. Because the actual space of the salt cavern storage is large, the distance between the interlayer and the bottom of the salt cavern is generally dozens of meters, hundreds of meters or even kilometers, the distance between the interlayer and the bottom of the salt cavern is reduced by adopting a similar theory, and the height of the obtained experimental liquid in the water tank 1 is generally dozens of centimeters. After the height of the experimental liquid in the water tank 1 is determined, adding the experimental liquid into the water tank according to the height; in an embodiment, the test fluid may be a set concentration of brine, specifically determined according to a similarity theory based on the actual brine concentration in the salt cavern reservoir.
When the device for the interlayer falling block sedimentation characteristic experiment of the salt cavern reservoir in the embodiment of the invention is specifically implemented, the stone thrower 2 is arranged at the opening at the top of the water tank 1 and can be used for placing the experiment falling block 3 and sinking the experiment falling block 3 into experiment liquid; in the embodiment, the stone thrower 2 can be placed in the center of the top opening of the water tank 1, the experiment is performed to fall the block 3, and the experimental liquid is sunk from the center of the top opening of the water tank 1, so that the experiment can be ensured to fall the block 3 without touching the side wall of the water tank 1 before sinking to the bottom of the water tank 1 when the experiment is performed to fall the block 3 to cause large transverse displacement or longitudinal displacement, and the experiment is ensured to fall the accuracy of the sedimentation characteristic of the block 3.
When the device for testing the sedimentation characteristics of the falling block of the interlayer of the salt cavern reservoir is implemented, the reflecting device 5 can be arranged in a first direction outside the water tank 1 and used for reflecting the first sedimentation image data of the falling block 3 in the first direction to the image acquisition and processing device; in the embodiment, a plurality of directions are arranged outside the water tank 1, one direction is selected as a first direction, a reflecting device 5 is arranged in the first direction outside the water tank 1, and first settlement image data of the experimental falling block 3 in the first direction is reflected to an image acquisition and processing device; in an embodiment, the reflection device 5 may include an optical device such as a mirror, a polished metal panel, etc., which can reflect a complete and clear image.
In a specific implementation of the experimental device for the interlayer falling block sedimentation characteristic of the salt cavern reservoir in the embodiment of the invention, the image acquisition and processing device may be disposed in a second direction outside the water tank 1, and configured to acquire second sedimentation image data of the experimental falling block 3 in the second direction and first sedimentation image data of the experimental falling block 3 in the first direction reflected by the reflection device 5, and determine the sedimentation characteristic of the experimental falling block 3 according to the first sedimentation image data and the second sedimentation image data. In the embodiment, the water tank 1 has a plurality of directions, on the basis that one first direction is selected, another direction can be selected as a second direction, an image collecting and processing device is arranged in the second direction outside the water tank 1, the image collecting and processing device faces the second direction of the water tank 1 and the direction reflected by the reflecting device 5, and is used for acquiring second settlement image data of the experiment falling block 3 in the second direction and first settlement image data of the experiment falling block 3 reflected by the reflecting device 5 in the first direction; and after the first settlement image data and the second settlement image data are obtained, determining the settlement characteristic of the experimental falling block 3 through calculation and analysis.
In an embodiment of the present invention, when the salt cavern reservoir interlayer dropping block sedimentation characteristic testing apparatus is implemented, the foregoing stone projector 2 may include: a hinge 21 capable of being closed and opened; in an embodiment, the hinge 21 comprises: a first hinge 211 and a second hinge 212, and the stone projector may include the first hinge 211 and the second hinge 212 capable of being closed and opened; when the first hinge 211 and the second hinge 212 are closed, the experiment dropping block 3 is horizontally placed on the first hinge 211 and the second hinge 212; when the first hinge 211 and the second hinge 212 are opened, the upstream surface 31 of the falling block 3 is horizontally sunk into the experimental liquid. In an embodiment, when the first hinge 211 and the second hinge 212 are closed, the first hinge 211 and the second hinge 212 are kept in a horizontal state to form a plane capable of bearing the experiment dropping block 3, the plane is parallel to a horizontal plane of experiment liquid, and the experiment dropping block 3 can be horizontally placed on the first hinge 211 and the second hinge 212, so that the upstream surface 31 of the experiment dropping block 3 is parallel to the horizontal plane of the experiment liquid, and the movement track of the dropping block in the sedimentation process can be conveniently analyzed. When the first hinge 211 and the second hinge 212 are opened, the first hinge 211 and the second hinge 212 are opened towards the bottom of the water tank 1, the experiment falling block 3 supported on the first hinge 211 and the second hinge 212 begins to sink into the experiment liquid, and because the upstream surface 31 of the experiment falling block 3 is parallel to the horizontal plane of the experiment liquid when the first hinge 211 and the second hinge 212 are closed, namely the upstream surface 31 of the experiment falling block 3 keeps parallel, when the first hinge 211 and the second hinge 212 are opened, the experiment falling block 3 can sink into the experiment liquid by keeping the upstream surface 31 in a horizontal state.
In order to control the first hinge 211 and the second hinge 212 of the stone thrower 2 to open or close, in one embodiment, the stone thrower 2 further includes: and a pulling rope 22 for controlling the closing and opening of the first hinge 211 and the second hinge 212. In the embodiment, the pulling rope 22 is respectively connected with the first hinge 211 and the second hinge 212, the first hinge 211 and the second hinge 212 are in a closed state in the initial state, and when a falling block settlement experiment is performed, the pulling rope 22 is pulled to control the first hinge 211 and the second hinge 212 to be opened towards the bottom of the water tank 1, so that the upstream surface 31 of the falling block 3 in the experiment is horizontally sunk into the experiment liquid to start settlement; after the experiment dropping block 3 completely leaves the first hinge 211 and the second hinge 212, the traction rope 22 is loosened, and the first hinge 211 and the second hinge 212 can automatically rebound to the closed state; in an embodiment, the first hinge 211 and the second hinge 212 automatically rebound to the closed state because the first hinge 211 and the second hinge 212 are connected with springs or elastic pieces, and the springs or elastic pieces can control the first hinge 211 and the second hinge 212 to be in the closed state and can bear the experiment falling block 3 when the first hinge 211 and the second hinge 212 are not pulled by the pulling rope 22; when the pulling rope 22 is pulled, the pulling force of the pulling rope 22 is larger than the elastic force of the spring or the elastic sheet, the first hinge 211 and the second hinge 212 are controlled to be opened, and when the pulling rope 22 is loosened, the elastic force of the spring or the elastic sheet controls the first hinge 211 and the second hinge 212 to rebound to the closed state.
In order to prevent splash from splashing during the falling block sedimentation experiment, and to meet the actual sedimentation condition of the actual falling block sedimentation, in one embodiment, the first hinge 211 and the second hinge 212 immerse the upstream surface 31 of the experimental falling block 3 in the experimental liquid by immersing in the experimental liquid. In the embodiment, the first hinge 211 and the second hinge 212 are immersed in the experimental liquid, the experiment falling block 3 placed on the first hinge 211 and the second hinge 212 is also immersed in the experimental liquid, so that the upstream surface 31 of the experiment falling block 3 is also immersed in the liquid, and by the arrangement, splash caused by the experiment falling block 3 when the experiment falling block sinks in the experimental liquid can be avoided, so that the experiment falling block 3 sinks in the water stably in the horizontal direction, the actual sedimentation condition of the actual collapsed falling block sedimentation is met, the falling block sedimentation experiment is more in line with the actual condition, and the finally obtained falling block sedimentation characteristic is more accurate.
In the event of a falling block settlement test, it is necessary to control the depth of immersion of the first hinge 211 and the second hinge 212 in the test liquid, and in one embodiment, the stone thrower 2 further includes: and the bracket 23 is used for controlling the immersion depth of the first hinge 211 and the second hinge 212 in the test liquid. In an embodiment, the support 23 may comprise a rigid support; in the embodiment, one end of the bracket 23 is connected with the first hinge 211 and the second hinge 212, the other end of the bracket 23 is connected with the top opening of the water tank 1, and the depth of the first hinge 211 and the second hinge 212 immersed in the experimental liquid can be controlled by adjusting the direction and the length of the bracket 23, so that the depth of the upstream surface 31 of the experiment falling block 3 immersed in the experimental liquid can be controlled. The depth of the upstream surface 31 of the experimental falling block 3 immersed in the experimental liquid is determined according to the actual depth of the immersed liquid of the actual collapsed falling block when the salt cavern storage settles by adopting a similar theory; the falling height of the experiment falling block is the height of the experiment liquid minus the depth of the first hinge and the second hinge immersed in the experiment liquid.
In order to mark the instantaneous spatial position of the experimental drop during sedimentation, in one embodiment the water tank 1 is provided with a lateral scale and a longitudinal scale in a first direction and the water tank is provided with a lateral scale and a longitudinal scale in a second direction. In the embodiment, a transverse scale 12 and a longitudinal scale 11 are arranged by taking the central point of the water tank in the first direction as an intersection point and are used for marking the instantaneous space position of the experiment dropping block 3 in the first direction; a transverse scale and a longitudinal scale are arranged by taking the central point of the water tank in the second direction as an intersection point and are used for marking the instantaneous space position of the experiment dropping block 3 in the second direction; by analyzing the instantaneous spatial position of the experimental falling block 3 in the first direction and the instantaneous spatial position in the second direction, the sedimentation characteristic of the experimental falling block 3 can be obtained.
In order to ensure that the image acquisition and processing device can accurately acquire the first settlement image data of the experimental falling block reflected by the reflecting device in the first direction when the experimental device for the settlement characteristics of the interlayer falling block of the salt cavern reservoir is implemented, in one embodiment, the reflecting surface of the reflecting device 5 faces the water tank 1 and forms a set included angle with the first direction of the water tank 1
. In an embodiment, the reflecting means 5 forms a set angle with the first direction of the water reservoir 1
The set included angle
Can be adjusted, when the depth of the experimental liquid in the water tank 1 changes or the size or the shape of the experimental falling block 3 changes, the set included angle
Need adjust according to above-mentioned change, guarantee that image acquisition processing apparatus can accurately gather the experiment that reflection device 5 reflects and fall the first settlement image data that piece 3 in the first direction. In an embodiment, the relative position between the reflection device 5 and the water tank 1 in the first direction can be adjusted, so as to ensure that the image acquisition and processing device can accurately acquire the first settlement image data of the experimental falling block 3 reflected by the reflection device 5 in the first direction.
In an embodiment of the present invention, when the experimental device for settlement characteristics of an interlayer falling block of a salt cavern reservoir is implemented, the experimental falling block settlement characteristics determined according to the first settlement image data and the second settlement image data may include: the motion trail, the transverse displacement and the speed value of the falling block 3 in the sedimentation process are tested.
When the salt cavern reservoir interlayer block falling and sedimentation characteristic experiment device provided by the embodiment of the invention is specifically implemented, the image acquisition and processing device can comprise a camera 6 and a computer 7; the camera 6 is used for acquiring second settlement image data of the experiment falling block 3 in the second direction and first settlement image data of the experiment falling block 3 in the first direction reflected by the reflecting device 5, and transmitting the first settlement image data and the second settlement image data to the computer 7; the computer 7 is used for determining the experimental block falling and settling characteristics according to the first settlement image data and the second settlement image data. In the embodiment, the camera 6 faces the second direction of the water tank 1 and the mirror surface of the reflection device 5 to obtain the second settlement image data of the experiment falling block 3 in the second direction and the first settlement image data of the experiment falling block 3 in the first direction reflected by the reflection device 5, the camera 6 is connected with the computer 7 through the data line 64 to transmit the obtained first settlement image data and the obtained second settlement image data to the computer 7, and the computer 7 is provided with analysis software to store and analyze the first settlement image data and the second settlement image data, so that the experiment falling block settlement characteristic can be obtained. In the embodiment, the orientation angle and the distance between the camera 6 and the second side surface of the water tank 1 are adjustable, so as to ensure that the image acquisition and processing device can accurately acquire the first settlement image data of the experimental falling block 3 reflected by the reflecting device 5 in the first direction. In the embodiment, the camera 6 comprises a lens 61, a lens 62 and an image sensor 63, the lens 61 faces the second direction of the water tank 1 and the mirror surface of the reflection device 5, and the focal length of the camera 6 is adjusted by adjusting the distance between the lens 62 and the image sensor 63, so that the shooting range and the definition of the camera 6 are changed. In the embodiment, the lens 62 and the image sensor 63 constitute a focal length adjusting device of the camera 6, which is used for adjusting the focal length of the camera 6, specifically, adjusting the distance between the lens 62 and the image sensor 63, so as to adjust the focal length of the camera 6, and achieve the purpose of changing the shooting range and the definition of the camera 6. In the embodiment, by adjusting the focal length of the camera 6, the shooting range of the camera 6 can be adjusted, and specifically, the shooting range of the lens 61 includes: rays 65 and 66, reflected lines 67 and 68; by adjusting the distance between the lens 62 and the image sensor 63, the ranges of the rays 65 and 66 and the ranges of the reflected rays 67 and 68 can be adjusted, so that the whole sedimentation process of the experimental falling block 3 can be clearly shot by the camera 6. In an embodiment, the camera 6 comprises: digital cameras or web cameras, etc.
When the experimental device for the settlement characteristics of the interlayer falling blocks of the salt cavern reservoir in the embodiment of the invention is implemented specifically, the experimental device can further comprise an illuminating lamp 4 in one embodiment, the illuminating lamp 4 is arranged above the opening at the top of the water tank 1, and light rays of the illuminating lamp 4 are projected into experimental liquid; through the irradiation of the illuminating lamp 4, the fluorescent sheet arranged on the surface of the experimental falling block 3 is more obvious in the settlement image data acquired by the camera 6, so that the computer 7 can analyze the settlement image data conveniently, and the settlement characteristic of the experimental falling block 3 can be rapidly and accurately acquired; in an embodiment, a lamp holder 41 may be further included, connecting the illumination lamp 4 and the opening at the top of the water tank 1, for controlling the position of the illumination lamp 4 above the opening at the top of the water tank 1 and the direction of the light emitted from the illumination lamp 4; in the embodiment, the lamp holder 41 controls the illumination lamp 4 to be disposed at the center of the top opening of the water tub 1, and projects the light of the illumination lamp 4 into the experimental liquid. In one embodiment, the method may further include: a gantry 8 for placing the camera 6 and the computer 7.
The embodiment of the invention also provides an experimental method using the device for testing the falling block sedimentation characteristic of the interlayer of the salt cavern reservoir, which is described in the following embodiment. The principle of solving the problems by the experimental method is similar to that of a salt cavern storage interlayer block falling sedimentation characteristic experimental device, so the implementation of the experimental method can be referred to that of the salt cavern storage interlayer block falling sedimentation characteristic experimental device, and repeated parts are not repeated.
As shown in fig. 3, an experimental method schematic diagram of an experimental apparatus for settling characteristics of falling blocks of an interlayer of a salt cavern reservoir according to an embodiment of the present invention is shown, and an experimental method of the experimental apparatus for settling characteristics of falling blocks of an interlayer of a salt cavern reservoir according to an embodiment of the present invention includes:
step 301: placing the experimental falling block 3 in a stone thrower 2, and sinking the experimental liquid;
step 302: the image acquisition and processing device acquires second settlement image data of the experiment falling block 3 in the second direction and first settlement image data of the experiment falling block 3 in the first direction reflected by the reflecting device 5, and the experiment falling block settlement characteristics are determined according to the first settlement image data and the second settlement image data.
In one embodiment, the experimental method is performed repeatedly, wherein at each execution the experimental drop 3 is submerged into the experimental liquid with a different upstream face 31.
When adopting foretell salt cavern storehouse intermediate layer to fall piece settlement characteristic experimental apparatus and fall piece settlement experiment, can include:
(1) making an experiment dropping block 3: determining the thickness of each interlayer and the lithology of each interlayer according to the well logging information of the completed well of the salt cavern reservoir; determining the size and density of collapsed blocks of the interlayer according to the thickness of the interlayer and the lithology of each interlayer; determining the size and density of the experimental falling blocks by applying a similar theory according to the size and density of the falling blocks of the interlayer; manufacturing an experiment dropping block 3 according to the size and the density of the experiment dropping block, and arranging a fluorescent sheet on the surface of the experiment dropping block 3;
(2) the experimental liquid was added to the water tank 1: determining the distance between the interlayer and the bottom of the salt cavern according to the well logging information of the completed well of the salt cavern reservoir; and determining the height of the experimental liquid in the water tank 1 by using a similar theory according to the distance between the interlayer and the bottom of the salt cavity, and adding the experimental liquid into the water tank 1 according to the height. The experimental liquid is saline with set concentration determined according to the actual saline concentration of the salt cavern storage and a similar theory;
(3) placing and adjusting the reflection device 5 and the camera 6: according to the size of the water tank 1, the size of the experiment dropping block 3 and the height of the experiment liquid, the distance and the included angle between the reflecting device 5 and the first direction of the water tank 1 are adjusted
Adjusting the distance and orientation angle between the camera 6 and the second direction of the water tank 1, and adjusting the lens 62 and image sensor in the focal length adjusting device of the camera 6The distance between the reactors 63 is adjusted, the range of the rays 65 and 66 and the range of the reflection lines 67 and 68 are adjusted, and the maximum shooting amount of the experimental falling blocks 3 in the sedimentation process is obtained on the premise of ensuring the shooting definition of the camera 6; the direction and the length of the bracket 12 are adjusted to adjust the depth of the first hinge 211 and the second hinge 212 immersed in the experimental liquid and control the falling height of the experiment falling block 3;
(4) preparation for shooting: turning on the illuminating lamp 4, turning on the camera 6 and the computer 7;
(5) placing an experiment to drop blocks: arranging a plurality of experiment dropping blocks to be shot and the upstream surface of each experiment dropping block in sequence, and recording the sequence; placing the single experiment dropping block 3 into the stone thrower 2 according to the sequence record, and ensuring that the selected upstream face 31 is placed horizontally downwards;
(6) shooting and testing the sedimentation process: pulling the traction rope 22 to start shooting in the sedimentation process, continuously shooting three times when a single experiment falling block 3 falls on the same upstream face 31, changing the falling of other two upstream faces, continuously shooting three times, checking the playback of the camera 6, judging whether the whole sedimentation process is within the shooting range of the camera 6, and checking whether the computer 7 completely collects sedimentation image data;
(7) if part of the sedimentation process of the experimental falling block 3 is not within the shooting range of the camera 6, repeating the steps (3) to (6); if the data acquisition of the computer 7 is incomplete, debugging the computer software is needed; if the shooting range and the computer acquisition both meet the requirements, continuing the following steps;
(8) shooting the sedimentation process of the falling blocks of other experiments according to the recording sequence, and performing the same steps (5) to (6);
(9) data processing: and exporting the falling block settlement image data from the camera 6 to the computer 7, and analyzing and processing the falling block settlement image data by using software to obtain settlement characteristics such as motion tracks, transverse displacement, speed values and the like of the falling blocks in the horizontal settlement process of different upstream surfaces in the experiments with different sizes, densities and falling heights.
Through the experimental process, various sedimentation characteristics of a plurality of experimental falling blocks can be obtained.
The invention provides an experimental device and an experimental method for settlement characteristics of interlayer falling blocks of a salt cavern storage, which are used for researching the settlement process of falling blocks after the interlayer in a multi-interlayer salt cavern storage collapses, quantitative analysis is carried out on the experimental falling blocks with different sizes, densities and falling heights according to the movement locus, the transverse displacement, the speed and the like of the falling blocks after the falling on different upstream surfaces, by solving the problems existing in the water-soluble cavity construction of the salt cavern underground storage, the invention provides the experimental device for the interlayer collapse and falling block sedimentation characteristics, simulates the real cavity construction operation process, improves the accuracy and the applicability of the experimental test, solves the actual field requirements, the method has important significance for deeply researching the falling mechanism of the falling block and quantitatively evaluating the influence of the falling block, and provides reference basis for solving the problems that the cavity building tubular column is damaged by impact, the cavity form is controlled, the whole storage cavity is failed to be built and the like.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (9)
1. The utility model provides a salt cave storehouse intermediate layer falls piece settlement characteristic experimental apparatus which characterized in that includes:
the device comprises a water tank, a stone projector, a reflecting device and an image acquisition and processing device;
the top of the water tank is provided with an opening for containing experimental liquid; the water tank is provided with a transverse scale and a longitudinal scale in a first direction, and the water tank is provided with a transverse scale and a longitudinal scale in a second direction;
the stone thrower is arranged at an opening at the top of the water tank and used for placing the experiment dropping blocks and sinking the experiment dropping blocks into the experiment liquid; the experiment is fallen, just makes before falling the piece settlement characteristic experiment and accomplish, the experiment falls the preparation method of piece and includes: determining the thickness of each interlayer and the lithology of each interlayer according to the well logging information of the completed well of the salt cavern reservoir; determining the size and density of an interlayer collapse block according to the thickness of the interlayer and the lithology of each interlayer; determining the size and density of the experimental falling blocks by using a similar theory according to the size and density of the falling blocks of the interlayer collapse; manufacturing an experiment dropping block according to the size and the density of the experiment dropping block;
the reflection device is arranged in a first direction outside the water tank and used for reflecting first settlement image data of the experiment falling block in the first direction to the image acquisition and processing device;
the image acquisition and processing device is arranged in a second direction outside the water tank and used for acquiring second settlement image data of the experiment falling block in the second direction and first settlement image data of the experiment falling block reflected by the reflecting device in the first direction, and determining the settlement characteristic of the experiment falling block according to the first settlement image data and the second settlement image data; the experimental falling block sedimentation characteristics comprise: and (5) testing the motion trail, the transverse displacement and the speed value of the falling block in the sedimentation process.
2. The salt cavern reservoir interlayer falling block sedimentation characteristic experimental device as claimed in claim 1,
the stone thrower comprises: the first hinge and the second hinge can be closed and opened;
when the first hinge and the second hinge are closed, the experiment dropping block is horizontally placed on the first hinge and the second hinge;
when the first hinge and the second hinge are opened, the upstream surface of the falling block is horizontally sunk into the experimental liquid.
3. The salt cavern reservoir interlayer falling block sedimentation characteristic experimental device as claimed in claim 2,
the stone projector still includes: and the traction rope is used for controlling the closing and the opening of the first hinge and the second hinge.
4. The salt cavern reservoir interlayer falling block sedimentation characteristic experimental device as claimed in claim 2,
the first hinge and the second hinge immerse the upstream face of the experiment falling block into the experiment liquid by immersing the experiment liquid.
5. The salt cavern reservoir interlayer falling block sedimentation characteristic experimental device as claimed in claim 4,
the stone projector also comprises: and the bracket is used for controlling the depth of the first hinge and the second hinge immersed in the experimental liquid.
6. The salt cavern reservoir interlayer falling block sedimentation characteristic experimental device as claimed in claim 1,
the reflecting surface of the reflecting device faces the water tank and forms a set included angle with the first direction.
7. The salt cavern reservoir interlayer falling block sedimentation characteristic experimental device as claimed in claim 1,
the image acquisition and processing device comprises a camera and a computer;
the camera is used for acquiring second settlement image data of the experiment falling block in the second direction and first settlement image data of the experiment falling block in the first direction reflected by the reflecting device, and transmitting the first settlement image data and the second settlement image data to the computer;
and the computer is used for determining the experimental block falling and settling characteristics according to the first settling image data and the second settling image data.
8. An experimental method using the device for testing the falling block sedimentation characteristics of the salt cavern reservoir interlayer as claimed in any one of claims 1 to 7, is characterized by comprising the following steps:
placing the experimental falling blocks in a stone thrower, and sinking the experimental falling blocks into experimental liquid; the experiment is fallen, just makes before falling the piece settlement characteristic experiment and accomplish, the experiment falls the preparation method of piece and includes: determining the thickness of each interlayer and the lithology of each interlayer according to the well logging information of the completed well of the salt cavern reservoir; determining the size and density of collapsed blocks of the interlayer according to the thickness of the interlayer and the lithology of each interlayer; determining the size and density of the experimental falling blocks by using a similar theory according to the size and density of the falling blocks of the interlayer collapse; manufacturing an experiment dropping block according to the size and the density of the experiment dropping block;
the image acquisition and processing device acquires second settlement image data of the experiment falling block in the second direction and first settlement image data of the experiment falling block reflected by the reflecting device in the first direction, and the experiment falling block settlement characteristic is determined according to the first settlement image data and the second settlement image data; the experimental falling block sedimentation characteristics comprise: testing the motion trail, the transverse displacement and the speed value of the falling block in the sedimentation process;
wherein, the top of the water tank is provided with an opening for containing experimental liquid; the water tank is provided with a transverse scale and a longitudinal scale in a first direction, and the water tank is provided with a transverse scale and a longitudinal scale in a second direction; the stone thrower is arranged at an opening at the top of the water tank and used for placing the experiment dropping blocks and sinking the experiment dropping blocks into the experiment liquid; the reflection device is arranged in a first direction outside the water tank and used for reflecting first settlement image data of the experiment dropping block in the first direction to the image acquisition and processing device.
9. The experimental method of claim 8, wherein the experimental method is performed repeatedly, wherein the experimental swabs are submerged into the experimental liquid with different upstream faces at each execution.
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