Oil and gas well quick drilling composite fracturing bridge plug

Abstract

The utility model relates to a quick-drilling composite fracturing bridge plug for an oil and gas well, which is characterized in that a ring body of a fixing ring is provided with a plurality of movable grooves used for being movably connected with a slip device; the slip device comprises a slip assembly which is arranged in the movable groove and used for abutting against the interior of the oil and gas well, and a fixing assembly used for fixing the slip assembly is arranged in the slip assembly. The two bolts are unscrewed and taken down from the plate body of the driving plate to unlock the driving plate, then the driving plate is controlled to drive the hinge rod on the moving block to be away from the interior of the moving groove, the slips can be taken out from the interior of the moving groove in the fixing ring, and the independent slips are replaced. When the plurality of slips are replaced, the four settlement screws can be unscrewed and taken down from the settlement threaded holes, so that the slips on the fixing ring can be replaced; and therefore, not only can the independent slips be replaced, but also a plurality of slips can be replaced, so that the waste of the slips is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge plug technical field especially is related to a kind of oil and gas well speed drilling composite fracturing bridge plug. BACKGROUND

[0002] Bridge plug is a kind of permanent or temporary packer, in the oil and gas well measures reconstruction construction, especially in horizontal well multistage fracturing measures, since the bridge plug used by single well is more, it requires that bridge plug has drillability, so that it can be drilled out by coiled tubing after construction. For example, as shown in the Chinese patent application No. CN202420293239.1, a segmented fracturing is used to throw ball type metal composite speed drilling bridge plug, the cone top end is fixedly connected with slip, the slip top end is provided with guide shoe, the guide shoe inside is provided with uniformly distributed first cavity, the first cavity inside is provided with support block, the first cavity is close to guide shoe outside and is penetrated by center pull rod, the center pull rod far away from first cavity one end is fixedly connected with rubber cylinder, the center pull rod far away from rubber cylinder one end is fixedly connected with push plate, the cone sidewall inside is provided with uniformly distributed second cavity, the second cavity is close to cone outer circumferential one side middle part and is fixedly connected with support rod, the support rod outer circumferential middle part is fixedly connected with stop block.

[0003] However, when using composite fracturing bridge plug to temporarily pack up oil and gas well, since several slips are connected with clamping ring in a unified manner of movable connection, when one of the slips is damaged, all the slips need to be replaced, thus easily leading to waste of the slips, so that it is inconvenient to reuse the composite fracturing bridge plug. UTILITY MODEL CONTENTS

[0004] To solve the problem of waste of slips and inconvenience of reusing the composite fracturing bridge plug due to the fact that several slips are connected with clamping ring in a unified manner of movable connection and all the slips need to be replaced when one of the slips is damaged, the utility model provides the following technical scheme:

[0005] A kind of oil and gas well speed drilling composite fracturing bridge plug, including the composite fracturing bridge plug main body for left and right movement being set in control piece, the left end of the control piece is provided with fixed ring, the fixed ring is movably connected with slip device for abutting against oil and gas well, and the slip device has several.

[0006] The ring body of the fixed ring is provided with movable slot for movable connection with the slip device, and the movable slot has several, and the several movable slots are distributed in circumferential array on the ring body of the fixed ring.

[0007] The slip device includes the slip assembly for abutting against oil and gas well being set in movable slot, and the slip assembly is provided with fixing assembly for fixing the slip assembly.

[0008] Further, the right end of the fixed ring is fixedly provided with four fixed blocks for inserting into the control member, and the four fixed blocks are arranged in a circumferential array at the right end of the fixed ring.

[0009] Further, the left end of the control member is provided with four fixed grooves for placing the fixed blocks, and the ring body of the control member is provided with four sinking screw holes for fixing the fixed ring on the control member.

[0010] Further, the slip assembly comprises a connecting plate arranged in the movable groove, and the left end of the connecting plate is fixedly provided with a slip for abutting against the oil and gas well.

[0011] Further, the fixed assembly comprises two round rods arranged in the connecting plate, and the rod bodies of the two round rods are sleeved with movable blocks for movement, and the end, away from the connecting plate, of the movable block is movably connected with a hinged rod for assisting the rotation of the slip.

[0012] Further, the top end of the movable block is fixedly provided with a connecting block, the top end of the connecting block is fixedly provided with a driving plate for driving the hinged rod to move, the plate body of the driving plate is provided with bolts for locking the driving plate, and the bolts are two.

[0013] Further, the hole cavities of the sinking screw holes are provided with four sinking screws for locking the fixed blocks, and the four sinking screws are arranged in a circumferential array in the hole cavities of the four sinking screw holes.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] By setting the fixed ring and the slip device, when it is necessary to replace the single slip, the two bolts can be unscrewed from the plate body of the driving plate to release the locking of the driving plate, and then the driving plate drives the hinged rod on the movable block to move away from the movable groove, so that the slip can be taken out from the movable groove in the fixed ring, and the single slip can be replaced; when several slips are replaced, the four sinking screws can be unscrewed from the sinking screw holes, so that the slips on the fixed ring can be replaced; thus, the single slip can be replaced, and several slips can also be replaced, so that the waste of the slip can be avoided. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the utility model;

[0017] Figure 2 It is a control member structure schematic view of the utility model;

[0018] Figure 3 It is the structure schematic view of slip device of the utility model;

[0019] Figure 4 It is the structure schematic view of fixed ring of the utility model;

[0020] Figure 5 It is the sectional view of connecting block of the utility model.

[0021] In the drawing, the component name list represented by each sign is as follows:

[0022] 100-composite fracturing bridge plug main body, 001-settling screw;

[0023] 200-control, 201-settling screw hole, 202-fixing groove;

[0024] 300-fixed ring, 301-fixed block, 302-movable slot;

[0025] 400-slip device, 410-fixing assembly, 411-driving plate, 412-connecting block, 413-bolt, 414-moving block, 415-hinged rod, 416-round rod, 420-slip assembly, 421-connecting plate, 422-slip. DETAILED DESCRIPTION

[0026] The preferred specific embodiment for realizing the utility model is described in detail below, and clear and complete description is made in conjunction with the drawing.

[0027] Please refer to Figures 1-5 The utility model provides a kind of oil and gas well fast drilling composite fracturing bridge plug.

[0028] Including the composite fracturing bridge plug main body 100 for left and right movement being arranged in control 200, the left end of control 200 is provided with fixed ring 300, the movable connection for resisting in oil and gas well of slip device 400 is connected in fixed ring 300, and slip device 400 has several.

[0029] The left end of control 200 is provided with the fixed groove 202 for placing fixed block 301, and the fixed groove 202 has four, four fixed grooves 202 are distributed in the left end of control 200 in circumferential array, to facilitate the insertion of fixed ring 300 into four fixed grooves 202;Sinking screw hole 201 for fixing fixed ring 300 on the ring body of control 200 is set, and the sinking screw hole 201 has four, four sinking screw holes 201 are distributed on the ring body of control 200 in circumferential array;While the cross section of sinking screw hole 201 is ladder-shaped.

[0030] The right end of the fixed ring 300 is fixedly provided with four fixed blocks 301 for being inserted into the control member 200, and the four fixed blocks 301 are arranged in a circumferential array at the right end of the fixed ring 300. The hole cavities of the four subsidence threaded holes 201 are provided with four subsidence screws 001 for locking the four fixed blocks 301, and the four subsidence screws 001 are arranged in a circumferential array in the hole cavities of the four subsidence threaded holes 201. Thus, when the fixed ring 300 needs to be installed, the four fixed blocks 301 at the right end of the fixed ring 300 can be inserted into the four fixed slots 202, and then the four subsidence screws 001 are screwed through the subsidence threaded holes 201 and the threaded connection between the four fixed blocks 301 at the right end of the fixed ring 300, so that the fixed ring 300 can be fixed on the control member 200.

[0031] The ring body of the fixed ring 300 is provided with a plurality of movable slots 302 for movably connecting the slip devices 400, and the plurality of movable slots 302 are arranged in a circumferential array on the ring body of the fixed ring 300, so that when the composite fracturing bridge plug body 100 works, the plurality of slip devices 400 can be controlled to move inwardly around the movable slots 302 and seal against the oil and gas well.

[0032] The slip device 400 comprises a slip assembly 420 arranged in the movable slot 302 for sealing against the oil and gas well, and the slip assembly 420 is provided with a fixing assembly 410 for fixing the slip assembly 420.

[0033] The slip assembly 420 comprises a connecting plate 421 arranged in the movable slot 302, and the connecting plate 421 can rotate in the movable slot 302. The left end of the connecting plate 421 is fixedly provided with a slip 422 for sealing against the oil and gas well.

[0034] The fixing assembly 410 comprises a circular rod 416 arranged in the connecting plate 421, and the circular rod 416 has two, and the circular rod 416 is arc-shaped, and the two circular rods 416 are arranged in a left-right symmetrical manner in the plate body of the connecting plate 421. The rod body of the two circular rods 416 is sleeved with a moving block 414 for moving, and the end of the moving block 414 away from the connecting plate 421 is movably connected with a hinged rod 415 for assisting the rotation of the slip 422, and the hinged rod 415 can be inserted into the slot wall of the movable slot 302, so as to facilitate the rotation of the slip 422 around the movable slot 302.

[0035] The top end of the moving block 414 is fixedly installed with the connecting block 412, the top end of the connecting block 412 is fixedly installed with the driving plate 411 for driving the articulated rod 415 to move, the plate body of the driving plate 411 is provided with the bolts 413 for locking the driving plate 411, and the two bolts 413 are symmetrically distributed on the plate body of the driving plate 411; so that when the single slip 422 needs to be replaced, the two bolts 413 can be unscrewed from the plate body of the driving plate 411 to release the locking of the driving plate 411, and then the driving plate 411 drives the articulated rod 415 on the moving block 414 to move away from the movable groove 302, so that the slip 422 can be taken out from the movable groove 302 in the fixed ring 300, and the single slip 422 can be replaced; and when several slips 422 need to be replaced, the four sinking screws 001 can be unscrewed from the sinking threaded holes 201, so that the slips 422 on the fixed ring 300 can be replaced; thereby the single slip 422 can be replaced, and several slips 422 can also be replaced, so that the waste of the slips can be avoided.

[0036] Based on the above content and the drawings, those skilled in the art can understand and implement the present application. Furthermore, any non-creative modification of the present application made by those skilled in the art without creative labor still falls within the protection scope of the present application.

Claims

1. A composite fracturing bridge plug for rapid drilling of oil and gas wells, characterized by: The invention comprises a composite fracturing bridge plug body (100) arranged in a control member (200) for left and right movement, a fixing ring (300) being arranged at the left end of the control member (200), a slip device (400) for resisting against an oil and gas well being movably connected in the fixing ring (300), and a plurality of slip devices (400); The ring body of the fixing ring (300) is provided with a movable groove (302) for movable connection with the slip device (400), and there are a plurality of movable grooves (302), which are distributed in a circumferential array on the ring body of the fixing ring (300); The slip device (400) includes a slip assembly (420) disposed in a movable groove (302) for resisting against a slip in an oil and gas well. A fixing assembly (410) for fixing the slip assembly (420) is disposed in the slip assembly (420).

2. The composite fracturing bridge plug for rapid drilling of oil and gas wells according to claim 1, characterized in that: A fixing block (301) for inserting into the control member (200) is fixedly mounted on the right end of the fixing ring (300), and there are four fixing blocks (301). The four fixing blocks (301) are distributed in a circular array on the right end of the fixing ring (300).

3. The composite fracturing bridge plug for rapid drilling of oil and gas wells according to claim 2, characterized in that: The left end of the control member (200) is provided with a fixing groove (202) for placing the fixing block (301), and there are four fixing grooves (202). The ring body of the control member (200) is provided with a sinking threaded hole (201) for fixing the fixing ring (300) on the control member (200), and there are four sinking threaded holes (201).

4. The composite fracturing bridge plug for rapid drilling of oil and gas wells according to claim 1, characterized in that: The slip assembly (420) includes a connecting plate (421) disposed in the movable groove (302), and a slip (422) for supporting the oil and gas well is fixedly mounted on the left end of the connecting plate (421).

5. The composite fracturing bridge plug for rapid drilling of oil and gas wells according to claim 4, characterized in that: The fixing assembly (410) includes two round rods (416) arranged in the connecting plate (421). The rod bodies of the two round rods (416) are provided with movable blocks (414) for movement. One end of the movable block (414) away from the connecting plate (421) is movably connected to a hinged rod (415) for assisting the rotation of the slip (422).

6. The composite fracturing bridge plug for rapid drilling of oil and gas wells according to claim 5, characterized in that: A connecting block (412) is fixedly mounted on the top of the moving block (414), a driving plate (411) for driving the hinged rod (415) to move is fixedly mounted on the top of the connecting block (412), and bolts (413) for locking the driving plate (411) are provided on the plate body of the driving plate (411), and there are two bolts (413).

7. The composite fracturing bridge plug for rapid drilling of oil and gas wells according to claim 3, characterized in that: The sinking threaded hole (201) is provided with a sinking screw (001) for locking the fixing block (301), and there are four sinking screws (001). The four sinking screws (001) are distributed in a circular array in the holes of the four sinking threaded holes (201).

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