Oil reservoir sand production simulation sand filling experiment device

Abstract

The utility model relates to the technical field of sand filling experiments, in particular to an oil reservoir sand production simulation sand filling experiment device. The oil reservoir sand production simulation sand filling experiment device comprises a frame body, an experiment barrel is arranged on the frame body, a placing barrel is erected in the experiment barrel, and a driving assembly is arranged in the experiment barrel; the driving assembly comprises a mounting seat, the mounting seat is arranged on the experiment cylinder, an operating rod is rotatably connected in the mounting seat, and guide rods are arranged on the two sides of the operating rod in the mounting seat. According to the oil reservoir sand production simulation sand filling experiment device, due to the arrangement of the driving assembly, in the using process, a worker can drive the clamping blocks on the two sides to synchronously clamp the containing barrel by rotating the rotating barrel, then the operation rod can be controlled to rotate, the containing barrel is driven to move, and the working efficiency is improved. And therefore, the later mounting and clamping operation and the position adjusting operation of workers are more flexible.

Description

Technical Field

[0001] The utility model relates to the technical field of sand filling experiments, in particular to an oil reservoir sand production simulation sand filling experiment device. Background Art

[0002] Reservoir engineering refers to the comprehensive petroleum technology research engaged in oilfield development design and engineering analysis methods. Sand filling, as a construction technology for temporarily isolating oil layers and protecting target layers in oilfield development, has been widely used in construction. Sand filling is simple and easy to operate, with low construction investment. Sand filling is the process of sand being carried by water on the ground through oil pipes into the well, and deposited in the well casing after a period of time, thereby achieving the purpose of isolating the oil layer. Therefore, simulated sand filling experiments are an important measure in the scientific development of oil fields.

[0003] The existing Chinese patent publication number is CN208416527U, which is a sand filling pipe experimental device for simulating fractured oil reservoirs. It can be seen from the contents recorded in its specification that when the device is in use, it mainly controls the rotation of the adjusting screws on both sides to clamp and adjust the internal magnetic column. However, since the adjusting screws on both sides are separate independent structures, during installation, the staff needs to rotate and adjust them separately, which reduces the operating experience of the device.

[0004] Therefore, it is necessary to provide a new reservoir sand production simulation sand filling experimental device to solve the above technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides an oil reservoir sand production simulation sand filling experimental device.

[0006] The utility model provides an oil reservoir sand production simulation sand filling experimental device comprising: a frame, an experimental cylinder is arranged on the frame, a placement cylinder is arranged inside the experimental cylinder, and a driving component is arranged inside the experimental cylinder;

[0007] The driving assembly comprises a mounting seat, the mounting seat is arranged on the experimental cylinder, a rotatably connected operating rod is arranged inside the mounting seat, guide rods are arranged on both sides of the operating rod inside the mounting seat, a slidably connected supporting seat is sleeved on the guide rod and the operating rod, the interior of the supporting seat is slidably connected to the outer wall of the guide rod, and the interior of the supporting seat is threadedly connected to the outer wall of the operating rod;

[0008] A rotating cylinder with a rotatable connection is mounted inside the support seat, and threaded driving rods are inserted on both sides of the rotating cylinder, and the thread directions of the thread structures on both sides are opposite. A transfer rod is provided at the end of the driving rod, and a sliding rod is provided on the outer wall of the transfer rod, and the end of the sliding rod is inserted into the experimental cylinder and is provided with a fixedly connected clamping block.

[0009] Preferably, both ends of the interior of the experimental cylinder are provided with card slots, a support plate is placed inside the experimental cylinder, card blocks are provided on both sides of the bottom of the support plate, and the card blocks are inserted into the card slots.

[0010] Preferably, a symmetrically distributed telescopic rod is provided at the center of the top of the support plate, an adapter plate with the same fixed connection is provided at the top of the telescopic rod, a supporting half ring is provided at the top of the adapter plate, a spring is arranged between the adapter plate and the support plate, and a holding rod is provided on one side wall of the adapter plate.

[0011] Preferably, both ends of the placement tube are provided with end covers, the outer wall of the placement tube is provided with symmetrically distributed annular grooves, the inner wall of the annular groove is against the outer wall of the supporting semi-ring, and the outer walls of the placement tube and the end covers are both hollow mesh structures.

[0012] Preferably, symmetrically distributed installation grooves are provided on both sides of the interior of the experimental cylinder, the inner walls of the installation grooves abut against the outer walls of the clamping blocks, and after the clamping block is located inside the installation grooves, one side wall close to the center of the experimental cylinder has the same curvature as the inner wall of the experimental cylinder.

[0013] Preferably, a through hole is opened inside the installation groove, the inner wall of the through hole abuts against and is slidably connected to the outer wall of the sliding rod, both ends of the experimental cylinder are provided with threaded sealing covers, a connecting adapter is provided inside the sealing cover, and the sealing cover can cover and seal the slot after being connected to the experimental cylinder.

[0014] Compared with the related art, the oil reservoir sand production simulation sand filling experimental device provided by the utility model has the following beneficial effects:

[0015] 1. The utility model is provided with a driving assembly. During use, the staff can drive the supporting blocks on both sides to synchronously support the placement cylinder by rotating the rotating cylinder, and then control the rotation of the operating lever to drive the placement cylinder to move, so that the staff can perform the clamping operation and position adjustment operation more flexibly in the later installation.

[0016] 2. The utility model provides a supporting half ring. When installing the placement tube, the supporting half ring and the annular groove abut against each other, so that the placement tube can be supported, thereby positioning the placement tube. Therefore, the placement tube can be stably supported in the center of the experimental tube, and it is convenient for the clamping block to clamp and fix the placement tube later, so that the staff can more stably install the placement tube in the center of the pipeline of the experimental tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model provides a structural schematic diagram of a preferred embodiment of an oil reservoir sand production simulation sand filling experimental device;

[0018] Figure 2 for Figure 1 A schematic diagram of the structure of the drive assembly shown;

[0019] Figure 3 for Figure 1 The structural schematic diagram of the placement tube is shown;

[0020] Figure 4 for Figure 1 A schematic diagram of the structure of the support plate and its components shown;

[0021] Figure 5 for Figure 1 A partial cross-sectional structural schematic diagram of the frame and its components shown.

[0022] Numbers in the figure: 1. frame; 2. experimental cylinder; 21. mounting groove; 211. through hole; 22. blocking cover; 221. adapter; 23. slot; 3. drive assembly; 31. mounting seat; 311. operating rod; 312. guide rod; 32. sliding rod; 321. clamping block; 322. adapter rod; 33. support seat; 331. rotating cylinder; 332. driving rod; 4. placing cylinder; 41. annular groove; 42. end cover; 5. support plate; 51. block; 52. spring; 53. telescopic rod; 54. adapter plate; 541. supporting half ring; 542. holding rod. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0024] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0025] See also Figures 1 to 5 The embodiment of the utility model provides an oil reservoir sand production simulation sand filling experimental device, and the oil reservoir sand production simulation sand filling experimental device comprises: a frame 1.

[0026] In the embodiments of the present invention, please refer to Figures 1 to 5The frame 1 is provided with an experimental cylinder 2, a placing cylinder 4 is arranged inside the experimental cylinder 2, and a driving assembly 3 is arranged inside the experimental cylinder 2; the driving assembly 3 includes a mounting seat 31, the mounting seat 31 is arranged on the experimental cylinder 2, a rotatably connected operating rod 311 is arranged inside the mounting seat 31, guide rods 312 are arranged on both sides of the operating rod 311 inside the mounting seat 31, and a slidably connected support seat 33 is sleeved on the guide rod 312 and the operating rod 311, the interior of the support seat 33 is slidably connected to the outer wall of the guide rod 312, and the interior of the support seat 33 is threadedly connected to the outer wall of the operating rod 311; a rotatably connected rotating cylinder 331 is arranged inside the support seat 33, threaded driving rods 332 are inserted on both sides of the interior of the rotating cylinder 331, and the thread directions of the thread structures on both sides are opposite, a transfer rod 322 is arranged at the end of the driving rod 332, a sliding rod 32 is arranged on the outer wall of the transfer rod 322, and the end of the sliding rod 32 is inserted into the experimental cylinder 2 and is provided with a fixedly connected clamping block 321.

[0027] It should be noted that when installing the experimental cylinder 2, the rotating cylinder 331 can be controlled to rotate. During the rotation of the rotating cylinder 331, since the threads on both sides thereof are in opposite directions, the driving rods 332 on both sides can be driven to move relative to each other. At this time, the moving driving rod 332 will drive the clamping block 321 to move toward the direction close to the placement cylinder 4 through the adapter rod 322 and the sliding rod 32, until the outer wall of the clamping block 321 abuts against the outer wall of the placement cylinder 4, so that the clamping and fixing of the supporting placement cylinder 4 can be achieved. In the experimental process, the operating rod 311 can also be controlled to rotate. The rotating operating rod 311 will drive the clamping block 321 and other components connected to the outer wall of the support seat 33 to move through the threaded structure. At this time, the moving clamping block 321 will drive the internally clamped placement cylinder 4 to move synchronously, thereby realizing the adjustment of the position of the placement cylinder 4 inside the experimental cylinder 2, thereby enabling the device to flexibly control the experimental variables as needed.

[0028] In the embodiments of the present invention, please refer to Figures 1 to 5 , both ends of the interior of the experimental cylinder 2 are provided with card slots 23, a support plate 5 is placed inside the experimental cylinder 2, both sides of the bottom of the support plate 5 are provided with card blocks 51, and the card blocks 51 are inserted in the card slots 23, a symmetrically distributed telescopic rod 53 is provided at the center of the top of the support plate 5, and a transfer plate 54 with the same fixed connection is provided at the top of the telescopic rod 53, a support semi-ring 541 is provided at the top of the transfer plate 54, a spring 52 is arranged between the transfer plate 54 and the support plate 5, and a holding rod 542 is provided on one side wall of the transfer plate 54, end covers 42 are provided at both ends of the placement cylinder 4, and symmetrically distributed annular grooves 41 are provided on the outer wall of the placement cylinder 4, the inner wall of the annular groove 41 is abutted against the outer wall of the support semi-ring 541, and the outer walls of the placement cylinder 4 and the end cover 42 are both hollow mesh structures.

[0029] It should be noted that: by setting the placement tube 4 and the end cover 42 as a hollow structure, the hollow structure can make the flowing liquid smoothly penetrate into the medium inside the experimental tube 2 for experimental testing during the process of fixing it inside the experimental tube 2, and by opening the annular groove 41 on its outer wall, when it is installed, when the annular groove 41 abuts against the supporting half ring 541, the supporting half ring 541 fixed inside the experimental tube 2 can preliminarily position the placement tube 4, so that the placement tube 4 can be stably located at the center of the experimental tube 2 so that it can be clamped and fixed by the clamping block 321 later;

[0030] The holding rod 542 is set so that after the placement tube 4 is clamped and fixed, the telescopic rod 53 can be contracted when the holding rod 542 is held, thereby driving the supporting half ring 541 to separate from the annular groove 41, so that the staff can take the supporting plate 5 out of the interior of the experimental tube 2.

[0031] In the embodiments of the present invention, please refer to Figures 1 to 5 Symmetrically distributed mounting grooves 21 are provided on both sides of the interior of the experimental cylinder 2, and the inner wall of the mounting groove 21 abuts against the outer wall of the clamping block 321. After the clamping block 321 is located inside the mounting groove 21, the side wall close to the center of the experimental cylinder 2 has the same curvature as the inner wall of the experimental cylinder 2.

[0032] It should be noted that: by opening the installation groove 21, when the placement tube 4 is not installed, when the clamping block 321 is located inside the installation groove 21, the inner wall of the experimental tube 2 can form a relatively complete and smooth plane, thereby reducing the obstruction of the subsequent liquid flow.

[0033] In the embodiments of the present invention, please refer to Figures 1 to 5 A through hole 211 is provided inside the installation groove 21, and the inner wall of the through hole 211 abuts against and is slidably connected to the outer wall of the sliding rod 32. Both ends of the experimental cylinder 2 are provided with threaded plugging covers 22, and a connecting adapter 221 is provided inside the plugging cover 22. After the plugging cover 22 is connected to the experimental cylinder 2, the card slot 23 can be shielded and sealed.

[0034] It should be noted that: through the relatively long sealing cover 22, after the sealing cover 22 is connected to the end of the experimental tube 2 in the later stage, the card groove 23 inside the experimental tube 2 can be smoothly sealed, so that the experimental tube 2 can form a complete cylindrical structure. At the same time, a sealing ring is provided at the connection between the through hole 211 on the outer wall of the experimental tube 2 and the sliding rod 32 to seal the connection between the two, thereby preventing liquid leakage during the later experiment.

[0035] The working principle of the oil reservoir sand production simulation sand filling experimental device provided by the utility model is as follows;

[0036] When using the device, the inner cavity of the test tube 2 can be filled with simulated balls, and saturated with water can be vacuumed, and then displaced at a constant speed through the adapter 221 on one side and flow out from the adapter 221 on the other side, so as to determine the simulated ball medium permeability, that is, the fracture permeability. The same method is adopted to fill the inner cavity of the test tube 2 with quartz sand particles to determine the quartz sand medium permeability, that is, the matrix permeability.

[0037] After the permeability measurement is completed, the support plate 5 can be taken out and the blocks 51 at both ends of the support plate 5 can be inserted into the card slots 23 to position the support plate 5 inside the test tube 2. Then, the placement tube 4 loaded with the simulated ball can be taken out, and the annular groove 41 in the placement tube 4 can be placed on the support semi-ring 541. At this time, the support semi-ring 541 can support and position the placement tube 4 at the center of the test tube 2. Then, the rotating tube 331 can be controlled to rotate.

[0038] During the rotation of the rotating cylinder 331, since the threads on both sides thereof are in opposite directions, the driving rods 332 on both sides can be driven to move relative to each other. At this time, the moving driving rods 332 will drive the clamping block 321 to move toward the placement cylinder 4 through the transfer rod 322 and the sliding rod 32 until the outer wall of the clamping block 321 abuts against the outer wall of the placement cylinder 4, thereby achieving the clamping and fixing of the supporting placement cylinder 4.

[0039] After the placement cylinder 4 is clamped and fixed, the holding rod 542 can be held to drive the adapter plate 54 and the supporting half ring 541 to move downward, so that the supporting half ring 541 is separated from the annular groove 41, and then the supporting plate 5 can be lifted upward to be taken out from the interior of the experimental cylinder 2;

[0040] After the placement tube 4 is fixed, the interior of the experimental tube 2 can be filled with quartz sand particles, and the plugging cap 22 can be screwed on, the displacement experimental pipeline can be connected, saturated oil can be injected, and water flooding operation can be performed subsequently. By analyzing the recovery factor and pressure data, the corresponding conclusion can be drawn.

[0041] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An oil reservoir sand production simulation sand filling experimental device, characterized in that: include: A frame (1), wherein an experimental cylinder (2) is arranged on the frame (1), a placement cylinder (4) is arranged inside the experimental cylinder (2), and a driving assembly (3) is arranged inside the experimental cylinder (2); The driving assembly (3) comprises a mounting seat (31), the mounting seat (31) being arranged on the experimental cylinder (2), a rotatably connected operating rod (311) being arranged inside the mounting seat (31), guide rods (312) being arranged on both sides of the operating rod (311) inside the mounting seat (31), a slidably connected supporting seat (33) being sleeved on the guiding rod (312) and the operating rod (311), the interior of the supporting seat (33) being slidably connected to the outer wall of the guiding rod (312), and the interior of the supporting seat (33) being threadedly connected to the outer wall of the operating rod (311); A rotatably connected rotating cylinder (331) is mounted inside the support seat (33), threaded drive rods (332) are inserted on both sides of the rotating cylinder (331), and the thread directions of the thread structures on both sides are opposite, a transfer rod (322) is provided at the end of the drive rod (332), a sliding rod (32) is provided on the outer wall of the transfer rod (322), and the end of the sliding rod (32) is inserted into the experimental cylinder (2) and is provided with a fixedly connected clamping block (321).

2. The oil reservoir sand production simulation sand filling experimental device according to claim 1, characterized in that: Both ends of the interior of the experimental cylinder (2) are provided with card slots (23), a support plate (5) is placed inside the experimental cylinder (2), card blocks (51) are provided on both sides of the bottom of the support plate (5), and the card blocks (51) are inserted into the card slots (23).

3. The reservoir sand production simulation sand filling experimental device according to claim 2, characterized in that: A symmetrically distributed telescopic rod (53) is provided at the center of the top of the support plate (5), an adapter plate (54) which is fixedly connected to the top of the telescopic rod (53), a supporting semi-ring (541) is provided at the top of the adapter plate (54), a spring (52) is arranged between the adapter plate (54) and the support plate (5), and a gripping rod (542) is provided on a side wall of the adapter plate (54).

4. The oil reservoir sand production simulation sand filling experimental device according to claim 3, characterized in that: End covers (42) are provided at both ends of the placement tube (4), and symmetrically distributed annular grooves (41) are provided on the outer wall of the placement tube (4), the inner wall of the annular groove (41) abuts against the outer wall of the supporting semi-ring (541), and the outer walls of the placement tube (4) and the end covers (42) are both hollow mesh structures.

5. The oil reservoir sand production simulation sand filling experimental device according to claim 2, characterized in that: Both sides of the interior of the experimental cylinder (2) are provided with symmetrically distributed mounting grooves (21), the inner wall of the mounting groove (21) abuts against the outer wall of the clamping block (321), and when the clamping block (321) is located inside the mounting groove (21), the side wall close to the center of the experimental cylinder (2) has the same curvature as the inner wall of the experimental cylinder (2).

6. The oil reservoir sand production simulation sand filling experimental device according to claim 5, characterized in that: A through hole (211) is provided inside the installation groove (21), and the inner wall of the through hole (211) abuts against and is slidably connected to the outer wall of the sliding rod (32). Both ends of the experimental cylinder (2) are provided with threaded plugging covers (22), and a communicating adapter (221) is provided inside the plugging cover (22). When the plugging cover (22) is connected to the experimental cylinder (2), the card slot (23) can be shielded and sealed.

Images