High-pressure four-way joint for oil field ground blowout

Abstract

The utility model discloses a high-pressure four-way joint for oil field ground blowout, which belongs to the technical field of four-way joints and comprises a four-way joint, and oil guide pipelines are sleeved at four ends of the four-way joint. According to the utility model, the plurality of erosion-resistant alloy pipes are welded at the corners of the inner cavity of the four-way joint, so that the erosion resistance of the corners of the inner cavity of the four-way joint is improved, and in addition, after the four-way joint is connected with the oil guide pipeline, the first protective shell and the second protective shell are arranged on the outer side of the joint of the four-way joint and the oil guide pipeline; meanwhile, whether liquid appears in inner cavities of the first protective shell and the second protective shell or not is monitored through a plurality of patch type liquid leakage sensors installed on the inner wall of the first protective shell, and when the patch type liquid leakage sensors detect that liquid appears in the inner cavities of the first protective shell, a controller is used for controlling a loudspeaker to give an alarm sound to remind a worker to handle the liquid in time; the practicability is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to four -way joint technical field more specifically, relate to a high pressure four -way for oilfield ground blow -out. BACKGROUND

[0002] Oilfield well blow -out refers to in the oil and gas exploration and development process, in order to carry out oil, gas testing work and artificially open wellhead, let the oil and gas in the well controlledly blow out the process of well outside. The main purpose of blow -out is to test formation pressure, identify oil, gas layer, and provide reliable basis for oil, gas well production and oil and gas field development. The four -way of connecting pipeline when oilfield wellhead blow -out operation, because oil liquid sand carrying capacity is big, often lead to the middle corner of the high pressure four -way of connecting pipeline is washed out, influence its service life, in addition when the pipeline and four -way connect, it is not convenient to monitor the leakage of the connection in real time, for this purpose, we put forward a kind of high pressure four -way for oilfield ground blow -out. UTILITY MODEL CONTENTS

[0003] In view of the problems mentioned in the above background art, the utility model aims at providing a high pressure four -way for oilfield ground blow -out.

[0004] To solve the above problems, the utility model adopts the following technical scheme: a kind of high pressure four -way for oilfield ground blow -out, including four -way joint, the four ends of the four -way joint are all covered with oil guide pipe, the inner chamber of the four -way joint is covered with four erosion -resistant alloy pipes, one end of four erosion -resistant alloy pipes is welded with each other, the other end of four erosion -resistant alloy pipes is all welded with the inner wall of four -way joint, the two sides of the four -way joint are respectively provided with support column, square groove is all set up on two support columns, screw hole is formed in the inner chamber of two square grooves, the outer side of two support columns is provided with protection monitoring mechanism, the outer side of four oil guide pipes is respectively covered with rubber sealing ring, the side of rubber sealing ring is all provided with annular clamping groove.

[0005] As a preferred scheme of the utility model, the protection monitoring mechanism includes first protection shell and second protection shell respectively installed on two support columns, the inner side of first protection shell and second protection shell is attached, four side surfaces of first protection shell and second protection shell are all provided with semicircular hole, the semicircular hole is covered in the inner chamber of annular clamping groove, the inner wall of first protection shell is fixedly installed with multiple patch type liquid leakage sensor, the outer side of first protection shell is provided with battery, the outer side of first protection shell is provided with controller, the outer side of first protection shell is provided with loudspeaker.

[0006] As a preferred scheme of the utility model, the middle part of the first protective shell and the second protective shell is provided with a square box seat, the inner cavity of the square box seat is provided with a mounting hole, the end part of the square box seat is movably sleeved to the inner cavity of the square groove, the inner cavity of the mounting hole is sleeved with a bolt, and the end part of the bolt is screwed to the inner cavity of the screw hole.

[0007] As a preferred scheme of the utility model, the inner wall of the first protective shell is fixedly connected with a plurality of plug blocks, the end parts of the plurality of plug blocks extend to the inner cavities of the second protective shell respectively, and the outer sides of the plug blocks are attached to the inner walls of the second protective shell.

[0008] As a preferred scheme of the utility model, the inner walls of the first protective shell and the second protective shell are attached to the inner and outer side surfaces of the ring-shaped clamping groove inner cavity respectively, and the outer diameter of the ring-shaped clamping groove is equal to the inner diameter of the semicircular hole.

[0009] As a preferred scheme of the utility model, the inner wall of the square groove and the side surface of the square box seat are attached, and the end faces of the two support columns are attached to the inner walls of the first protective shell and the second protective shell respectively.

[0010] The utility model discloses a four-way joint protection device, which comprises a four-way joint, a first protective shell and a second protective shell. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the overall structure schematic diagram of the utility model;

[0012] Figure 2 It is the overall structure explosion drawing of the utility model;

[0013] Figure 3 It is the structure schematic diagram of the four-way joint of the utility model;

[0014] Figure 4 It is the structure schematic diagram of the first protective shell of the utility model;

[0015] Figure 5 It is the sectional view schematic diagram of the four-way joint of the utility model;

[0016] Figure 6The utility model discloses a four-way joint and erosion-resistant alloy pipe's split schematic view.

[0017] Mark explanation in drawing: 1, four -way joint, 2, guide oil pipeline, 3, erosion-resistant alloy pipe, 4, support column, 5, square groove, 6, screw hole, 7, rubber seal ring, 8, annular clamping groove, 9, protection monitoring mechanism, 10, first protective shell, 11, second protective shell, 12, semicircular hole, 13, patch type liquid leakage sensor, 14, battery, 15, controller, 16, loudspeaker, 17, square box seat, 18, mounting hole, 19, bolt, 20, plug block. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the utility model.

[0019] In the description of the utility model, it needs to be explained that the orientation or position relation indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like is the orientation or position relation based on the orientation or position relation shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0020] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be understood broadly, for example, "connected" can be fixed connection, can also be detachable connection, or integrally connected, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through an intermediate medium, and can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. Embodiment 1

[0021] Please refer to Figures 1-6The utility model provides a high pressure four way valve for oilfield ground blowout, including four way joint 1, the four end of four way joint 1 is all set with oil guide pipe 2, the inner chamber of four way joint 1 is set with four erosion -resistant alloy pipe 3, one end of four erosion -resistant alloy pipe 3 is welded mutually, the other end of four erosion -resistant alloy pipe 3 all is welded with the inner wall of four way joint 1, and the both sides of four way joint 1 are provided with support column 4 respectively, and two support column 4 all are provided with square groove 5, and the inner chamber of two square grooves 5 all is provided with screw hole 6, and the outside of two support column 4 is provided with protection monitoring mechanism 9, and the outside of four oil guide pipes 2 is set with rubber sealing ring 7 respectively, and the side of rubber sealing ring 7 all is provided with annular clamping groove 8.

[0022] In the embodiment, one end of the four erosion-resistant alloy pipes 3 is welded to form an inner four-way pipe, and the other end of the four erosion-resistant alloy pipes 3 is welded to the inner wall of the four-way joint 1 to connect the four-way joint 1 and the erosion-resistant alloy pipes 3. Full welding is adopted when welding the erosion-resistant alloy pipes 3 to avoid fluid entering the gap between the four-way joint 1 and the erosion-resistant alloy pipes 3. The rubber sealing ring 7 can be sealed and installed on the oil guide pipe 2 by using its own elastic force, and the sealing between the first protective shell 10 and the second protective shell 11 and the oil guide pipe 2 is ensured by the rubber sealing ring 7.

[0023] Specifically, please refer to Figures 1 to 4 The protection monitoring mechanism 9 includes the first protective shell 10 and the second protective shell 11 installed on the two support columns 4 respectively, the inner sides of the first protective shell 10 and the second protective shell 11 are attached, the four side surfaces of the first protective shell 10 and the second protective shell 11 are all provided with semicircular holes 12, the semicircular holes 12 are set in the inner cavities of the annular clamping grooves 8, a plurality of patch type liquid leakage sensors 13 are fixedly installed on the inner walls of the first protective shell 10, a storage battery 14 is arranged on the outer side of the first protective shell 10, a controller 15 is arranged on the outer side of the first protective shell 10, and a loudspeaker 16 is arranged on the outer side of the first protective shell 10.

[0024] In the embodiment, the storage battery 14 is used to supply power to the controller 15, the loudspeaker 16 and the patch type liquid leakage sensor 13, the controller 15 is used to process the information detected by the patch type liquid leakage sensor 13, and the loudspeaker 16 is used to alarm and warn that leakage occurs between the four-way joint 1 and the oil guide pipe 2.

[0025] Specifically, please refer to Figures 1 to 4 The middle parts of the first protective shell 10 and the second protective shell 11 are both provided with square box seats 17, the inner cavities of the square box seats 17 are both provided with mounting holes 18, the end parts of the square box seats 17 are movably sleeved into the inner cavities of the square grooves 5, the inner cavities of the mounting holes 18 are set with bolts 19, and the end parts of the bolts 19 are threadedly installed into the inner cavities of the screw holes 6.

[0026] In this embodiment, the first protective shell 10 and the second protective shell 11 are installed on the support column 4 through the cooperation of the bolt 19 and the screw hole 6, so that the box combined by the first protective shell 10 and the second protective shell 11 is wrapped outside the connection between the four-way joint 1 and the oil guide pipeline 2.

[0027] Specifically, please refer to Figure 2 and Figure 4 The inner wall of the first protective shell 10 is fixedly connected with a plurality of plug blocks 20, the ends of the plurality of plug blocks 20 respectively extend to the inner cavity of the second protective shell 11, and the outer side of the plug block 20 is in abutment with the inner wall of the second protective shell 11.

[0028] In this embodiment, the stability and sealing between the first protective shell 10 and the second protective shell 11 are ensured through the plug block 20.

[0029] Specifically, please refer to Figures 2 to 4 The two sides of the inner cavity of the annular clamping groove 8 are in abutment with the inner and outer sides of the first protective shell 10 and the second protective shell 11, and the outer diameter of the annular clamping groove 8 is equal to the inner diameter of the semicircular hole 12.

[0030] In this embodiment, the sealing of the semicircular hole 12 on the first protective shell 10 and the second protective shell 11 clamped into the inner cavity of the annular clamping groove 8 is ensured.

[0031] Specifically, please refer to Figures 1 to 4 The inner wall of the square groove 5 is in abutment with the side surface of the square box seat 17, and the end surfaces of the two support columns 4 are respectively in abutment with the inner walls of the first protective shell 10 and the second protective shell 11.

[0032] In this embodiment, the sealing and stability of the square box seat 17 inserted into the inner cavity of the square groove 5 are ensured, so that the stability of the installation of the first protective shell 10 and the second protective shell 11 is ensured.

[0033] Working principle: when the high-pressure four-way joint is manufactured, the four erosion-resistant alloy pipes 3 are respectively sleeved into the four ends of the inner cavity of the four-way joint 1, the ends of the four erosion-resistant alloy pipes 3 are welded by using a welding gun, and the other ends of the four erosion-resistant alloy pipes 3 and the inner wall of the four-way joint 1 are welded by using the welding gun, so as to strengthen the erosion resistance of the corners of the high-pressure four-way joint by using the inner four-way pipe composed of the four erosion-resistant alloy pipes 3.

[0034] When the high-pressure four-way joint is used, first, the rubber sealing ring 7 is sleeved on the outer side of the four oil guide pipes 2, and the end of the four oil guide pipes 2 is connected with the four ends of the four-way joint 1, then the first protective shell 10 and the second protective shell 11 are installed on the support columns 4 on both sides of the four-way joint 1, so that the square box seat 17 on the first protective shell 10 and the second protective shell 11 is clamped into the square groove 5 on the two support columns 4, at the same time, the side surface of the first protective shell 10 and the second protective shell 11 is fitted, and the plug block 20 on the first protective shell 10 is inserted into the inner cavity of the second protective shell 11, in addition, the semicircular hole 12 on the side of the first protective shell 10 and the second protective shell 11 is clamped into the annular clamping groove 8 on the rubber sealing ring 7, then the bolt 19 is inserted from the installation hole 18, and the end of the bolt 19 is screwed into the threaded hole 6 to fix the first protective shell 10 and the second protective shell 11, the connection between the four-way joint 1 and the oil guide pipe 2 is protected by the first protective shell 10 and the second protective shell 11, finally, the plurality of patch type liquid leakage sensors 13 installed on the inner wall of the first protective shell 10 are used to monitor whether liquid appears in the inner cavity of the first protective shell 10 and the second protective shell 11, when the patch type liquid leakage sensor 13 detects that liquid appears in the inner cavity of the first protective shell 10, the controller 15 is used to control the loudspeaker 16 to issue an alarm sound to remind the staff to handle in time.

[0035] The above merely describes a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and improvement concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A high pressure cross for oilfield surface blowout comprising a cross joint (1), characterized in that: The four ends of the four-way joint (1) are sleeved with oil guide pipes (2), the inner cavity of the four-way joint (1) is sleeved with four erosion-resistant alloy pipes (3), one end of the four erosion-resistant alloy pipes (3) is welded with each other, the other end of the four erosion-resistant alloy pipes (3) is welded with the inner wall of the four-way joint (1), the two sides of the four-way joint (1) are respectively provided with support columns (4), the square grooves (5) are arranged on the two support columns (4), the screw holes (6) are arranged in the inner cavities of the two square grooves (5), the protection monitoring mechanisms (9) are arranged on the outer sides of the two support columns (4), the rubber sealing rings (7) are sleeved on the outer sides of the four oil guide pipes (2), and the annular clamping grooves (8) are arranged on the sides of the rubber sealing rings (7).

2. A high pressure cross according to claim 1, characterized in that: The protection monitoring mechanisms (9) comprise first protection shells (10) and second protection shells (11) mounted on the two support columns (4) respectively, the inner sides of the first protection shells (10) and the second protection shells (11) are attached, the four sides of the first protection shells (10) and the second protection shells (11) are provided with semicircular holes (12), the semicircular holes (12) are sleeved in the inner cavities of the annular clamping grooves (8), a plurality of patch type liquid leakage sensors (13) are fixedly installed on the inner walls of the first protection shells (10), the outer sides of the first protection shells (10) are provided with storage batteries (14), the outer sides of the first protection shells (10) are provided with controllers (15), and the outer sides of the first protection shells (10) are provided with loudspeakers (16).

3. A high pressure cross according to claim 2, characterized in that: The middle parts of the first protection shells (10) and the second protection shells (11) are provided with square box seats (17), the inner cavities of the square box seats (17) are provided with mounting holes (18), the end parts of the square box seats (17) are movably sleeved into the inner cavities of the square grooves (5), the inner cavities of the mounting holes (18) are sleeved with bolts (19), and the end parts of the bolts (19) are screwedly installed into the inner cavities of the screw holes (6).

4. A high pressure cross according to claim 2, characterized in that: The inner walls of the first protection shells (10) are fixedly connected with a plurality of plug blocks (20), the end parts of the plug blocks (20) extend into the inner cavities of the second protection shells (11) respectively, and the outer sides of the plug blocks (20) are attached with the inner walls of the second protection shells (11).

5. A high pressure cross according to claim 2, characterized in that: The inner and outer sides of the annular clamping grooves (8) are attached with the first protection shells (10) and the second protection shells (11) respectively, and the outer diameter of the annular clamping grooves (8) is equal to the inner diameter of the semicircular holes (12).

6. A high pressure cross according to claim 3, characterized in that: The inner walls of the square grooves (5) are attached with the sides of the square box seats (17), and the end faces of the two support columns (4) are respectively attached with the inner walls of the first protection shells (10) and the second protection shells (11).

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