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CN-224228621-U - Novel throttle well killing manifold device

CN224228621UCN 224228621 UCN224228621 UCN 224228621UCN-224228621-U

Abstract

The utility model relates to the technical field of throttling well killing manifold, in particular to a novel throttling well killing manifold device which comprises a blowout preventer connected with a wellhead, wherein a first flange connected with two ends of the blowout preventer is connected with a second flange through bolts; the flange has the beneficial effects that when the flange I and the flange II are required to be connected, quick positioning is needed at first, so that the flange I and the flange II can be in threaded connection, when the flange I and the flange II are in butt joint, the butt joint is unsuccessful, whether the convex hull on the flange II is in the chute or not is observed, if the distance between the flange I and the flange II in the chute can be shortened, the flange I and the flange II are required to be in butt joint again at the moment, the height is not required to be changed until the convex hull is aligned with the groove, so that the flange I and the flange II are in threaded connection, meanwhile, when the flange I and the flange II are in threaded connection, the embedded sealing gasket on the flange II can be pressed into the clamping groove to realize sealing, and the sealing gasket is positioned on the outer sides of the convex hull and the chute, so that the sealing gasket is difficult to slide due to the blocking of the convex hull.

Inventors

  • QIAN QINGHUA
  • ZHAO HONGYONG

Assignees

  • 盐城欧胜石油机械有限公司

Dates

Publication Date
20260512
Application Date
20250729

Claims (5)

  1. 1. The novel throttling well killing manifold device comprises a blowout preventer (1) connected with a wellhead, wherein flanges I (4) connected with two ends of the blowout preventer (1) are connected with flanges II (5) through bolts, two groups of flanges II (5) are respectively fixed at one ends of a well killing manifold body (2) and a throttling manifold body (3), and the novel throttling well killing manifold device is characterized in that a plurality of groups of grooves (6) and sliding grooves (7) are formed in the surface of each flange I (4), a plurality of groups of convex hulls (8) are fixed on the surface of each flange II (5), sealing structures are embedded between the two groups of flanges I (4) and the flanges II (5), and the sealing structures are located on the outer sides of the convex hulls (8).
  2. 2. The novel throttling and well-killing manifold device according to claim 1, wherein the two flange pairs (4) are respectively positioned at the left end and the right end of the blowout preventer (1), the well-killing manifold body (2) is positioned at the right side of the blowout preventer (1), and the throttling manifold body (3) is positioned at the left side of the blowout preventer (1).
  3. 3. The novel throttling and well-killing manifold device according to claim 1, wherein the grooves (6) are of a semicircular spherical structure, a plurality of groups of grooves (6) are circumferentially distributed on the central axis of the flange one (4), the sliding grooves (7) are of semicircular arc structures in fracture, the sliding grooves (7) are of annular structures, the central annular line of the sliding grooves (7) penetrates through the central axis of the grooves (6), and the radius of the sliding grooves (7) is smaller than the diameter of the grooves (6).
  4. 4. The novel throttling and well-killing manifold device according to claim 3, wherein a plurality of groups of convex hulls (8) are of a semicircular spherical structure, the convex hulls (8) are provided with a plurality of groups, the number of the convex hulls (8) is the same as that of the grooves (6), the convex hulls (8) correspond to the grooves (6) one by one, and the size of the convex hulls (8) is equal to that of the grooves (6).
  5. 5. The novel throttling and well-killing manifold device according to any one of claims 3-4, wherein the sealing structure comprises a sealing gasket (9), a baffle ring (10) and a clamping groove (11), the sealing gasket (9) is embedded in an embedded groove (12) formed in the surface of a flange II (5), the embedded groove (12) is located on the outer ring of a groove (6), the sealing gasket (9) is in a circular arc structure, multiple groups of local arc edges of the sealing gasket (9) protrude outwards to form a semicircular arc structure, multiple groups of protruding arc edges of the sealing gasket (9) are located on the outer side of a convex hull (8), the other end of the sealing gasket (9) is embedded in the clamping groove (11) formed in the flange I (4), the groove width of the clamping groove (11) is equal to the section width of the sealing gasket (9), when the flange I (4) is in a screwed connection with the flange II (5), the inner ring of the sealing gasket (9) is in contact with the sliding groove (7), and the top end of the baffle ring (10) is in flush joint with the flange I (4).

Description

Novel throttle well killing manifold device Technical Field The utility model relates to the field of throttling well killing manifolds, in particular to a novel throttling well killing manifold device. Background The well mouth is connected with the blowout preventer through a flange, the blowout preventer is used as a first channel defense line for controlling the well bore pressure, two groups of side outlets are arranged, one side of the blowout preventer is connected with the choke manifold, the other side of the blowout preventer is connected with the choke manifold, the choke manifold is composed of a throttle valve, a gate valve, a flange pipe section and a pressure gauge and is used for controlling the well mouth pressure after the blowout preventer is closed, fluid in the well is discharged through the throttle valve and the pressure is kept stable, the choke manifold is composed of a check valve, a gate valve, a flange pipe and a pressure gauge and is connected with a slurry pump and is used for injecting high-density slurry into the well to balance the bottom hole pressure. However, in the prior art, when the flange I and the flange II are connected, the flange I and the flange II can be connected in a threaded manner through the threaded holes in a traditional manner only by positioning, but when the threaded holes are positioned and connected in a butt joint mode, the threaded holes are unstable, the positioning offset is easy, and time and labor are wasted. Disclosure of utility model The utility model aims to provide a novel throttling well killing manifold device for solving the problems in the background technology. The blowout preventer comprises a blowout preventer connected with a wellhead, a flange I connected with two ends of the blowout preventer is connected with a flange II through bolts, the two flange I is respectively fixed at one ends of a well killing manifold body and a throttling manifold body, a plurality of groups of grooves and sliding grooves are formed in the surface of the flange I, a plurality of groups of convex hulls are fixed on the surface of the flange II, sealing structures are embedded between the flange I and the flange II, and the sealing structures are located on the outer sides of the convex hulls. Preferably, the first flanges are respectively arranged at the left end and the right end of the blowout preventer, the well killing manifold body is arranged at the right side of the blowout preventer, and the choke manifold body is arranged at the left side of the blowout preventer. Preferably, the grooves are of a semicircular spherical structure, the plurality of groups of grooves are circumferentially distributed on the central shaft of the flange I, the sliding grooves are of semicircular arc structures with fractures, the sliding grooves are of annular structures, the central annular line of the sliding grooves penetrates through the central shaft of the grooves, and the radius of the sliding grooves is smaller than the diameter of the grooves. Preferably, the convex hulls are of a semicircular spherical structure, the convex hulls are provided with a plurality of groups, the number of the convex hulls is the same as that of the grooves, the convex hulls correspond to the grooves one by one, and the sizes of the convex hulls are equal to those of the grooves. Preferably, the sealing structure comprises a sealing gasket, a baffle ring and a clamping groove, the sealing gasket is embedded in an embedded groove formed in the surface of the flange II, the embedded groove is located on the outer ring of the groove, the sealing gasket is in a circular arc structure, multiple groups of local arc edges of the sealing gasket are outwards protruded to be in a semicircular arc structure, multiple groups of protruding arc edges of the sealing gasket are located on the outer side of the convex hull, the other end of the sealing gasket is embedded in the clamping groove formed in the flange I, the groove width of the clamping groove is equal to the section width of the sealing gasket, when the flange I is in a state of being in threaded connection with the flange II, the inner ring of the sealing gasket is attached to the outer ring of the baffle ring, the inner ring of the baffle ring is in contact with the sliding groove, and the top end of the baffle ring is flush with the top surface of the flange I. Compared with the prior art, the utility model has the beneficial effects that: According to the novel throttling well killing manifold device, when the flange I and the flange II are required to be connected, quick positioning is needed at first, so that the flange I and the flange II can be screwed, when the flange I and the flange II are in butt joint, the butt joint is unsuccessful, whether the convex hull on the flange II is in the chute or not is observed, if the distance between the flange I and the flange II in the chute is shortened, the height is not required