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RU-2025139219-A - Device and method for modeling migration, accumulation and formation of an oil and gas reservoir

RU2025139219ARU 2025139219 ARU2025139219 ARU 2025139219ARU-2025139219-A

Inventors

  • МА, Чжунлян
  • Ван, Цян
  • ЧЖАО, Юнцян
  • ЧЖЭН, Люньцзюй
  • ЧЖАЙ, Чанбо
  • ПАНЬ, Аньян

Assignees

  • ЧАЙНА ПЕТРОЛЕУМ ЭНД КЕМИКАЛ КОРПОРЕЙШН
  • СИНОПЕК Эксплорейшн энд Продакшн Рисерч Инститьют

Dates

Publication Date
20260506
Application Date
20240711
Priority Date
20230712

Claims (20)

  1. 1. A device for simulating the migration, accumulation and formation of oil and gas reservoirs, comprising:
  2. a reactor (616), on the side wall of which there is an opening (618) for supplying a limiting pressure;
  3. a flexible coupling (620) for supplying a confining rock pressure, located inside the reactor (616), a rock sample (615), located inside the coupling (620) for supplying a confining rock pressure;
  4. a flow guide and locking sleeve (614) located between the reactor (616) and the sleeve (620) for supplying the restrictive rock pressure;
  5. an external sealing block (520, 521) located between the flow guide and locking sleeve (614) and the reactor (616); and
  6. an end connector (600) located on a portion of the reactor (616) and configured to axially compress the outer sealing block (520, 521) and the rock sample (615).
  7. 2. The modeling device according to claim 1, characterized in that the end connector (600) comprises an upper clamping sleeve (601) located on the upper end portion along the axis of the reactor (616), wherein the upper clamping sleeve (601) is designed with the possibility of sliding into a position between the reactor (616) and the flow guide and locking sleeve (614) and axially fitting to the outer sealing block.
  8. 3. The modeling device according to claim 2, characterized in that the end connector (600) contains an external pressure coupling (622) located on the lower end portion along the axis of the reactor (616), wherein the external pressure coupling (622) is designed with the possibility of axial contact with the reactor (616), the external sealing block and the flow guide and locking coupling (614).
  9. 4. The modeling device according to claim 3, characterized in that the end connector contains a pressure rod (609, 621) designed with the possibility of axial compression of the rock sample (615).
  10. 5. The modeling device according to paragraph 4, characterized in that the internal sealing unit (522), designed with the possibility of expanding in the radial direction under the action of axial pressure, is located on the pressure rod (609, 621).
  11. 6. The modeling device according to paragraph 5, characterized in that the internal pressure sleeve (602, 623), designed with the possibility of applying axial pressure to the internal sealing unit (522) and the pressure rod, is located on the pressure rod (609, 621).
  12. 7. A modeling device according to paragraph 6, characterized in that inside the pressure rod there is a channel passing in the axial direction through the pressure rod, and between the pressure rod and the rock sample (615) there is a filter plate (611, 619).
  13. 8. A modeling device according to any one of claims 1-7, characterized in that the outer sealing block (520, 521) comprises a convex sealing ring (603) and a concave sealing ring (604) interacting with each other in the axial direction, wherein the outer edge of the convex sealing ring (603) and the recess of the concave sealing ring (604) have a mutually complementary shape for interacting with each other.
  14. 9. The modeling device according to claim 8, characterized in that the outer sealing block (520, 521) further comprises a high-temperature sealing ring (605), wherein the convex sealing ring (603, 607) and the concave sealing ring (604, 606) are located on each axial side of the high-temperature ring (605).
  15. 10. A modeling device according to any one of claims 1 to 7, characterized in that at least one first opening (627) for directing the flow, extending in the radial direction, is provided in the guide and fixing coupling (614), and between the guide and fixing coupling (614) and the reactor (616) a support coupling (613) is located, wherein two end parts along the axis of the support coupling (613) are adjacent to two external sealing units (520, 521) of the external sealing block, respectively, and at least one second opening (628) for directing the flow, extending in the radial direction, is provided in the support coupling (613) and communicates with the first opening (627) for directing the flow.
  16. 11. The modeling device according to claim 10, characterized in that the plurality of said first flow direction openings (627) and the plurality of said second flow direction openings (628) are uniformly arranged along the axial direction in the flow guiding and fixing sleeve (614) and the support sleeve (613), respectively, and each first flow direction opening (627) communicates with a corresponding second flow direction opening (628).
  17. 12. The modeling device according to claim 10, characterized in that the support coupling (613) comprises a coupling body (6131) and protruding parts (6132) made on both end parts along the axis of the coupling body (6131), wherein radial gaps are made between the coupling body (6131) and the flow-directing and fixing coupling (614) and between the coupling body (6131) and the reactor (616).
  18. 13. The modeling device according to claim 12, characterized in that said second holes for directing the flow are located in the body (6131) of the coupling, and the rock sample (615) is located in the range of the length of the body (6131) of the coupling.
  19. 14. A modeling device according to any one of paragraphs 2-7, further comprising a frame (501), wherein on the upper part of the frame (501) there is a positioning post (511) configured to fit against the upper pressure sleeve (601) of the end connector, and on the lower part of the frame (501) there is a pressure mechanism configured to fit against the outer pressure sleeve (622) of the end connector.
  20. 15. The modeling device according to claim 14, characterized in that the clamping mechanism comprises an inner upper post (518) and an outer upper post (519) located coaxially around the inner upper post (518) and with the possibility of sliding, wherein the inner upper post (518) is adjacent to the inner clamping sleeve (623) of the end connector, and the outer upper post (519) is adjacent to its outer clamping sleeve (622).