Non-condensable gas collection device for oil-based cuttings disposal

Abstract

This utility model discloses a non-condensable gas collection device for oil-based rock cuttings processing, relating to the field of non-condensable gas collection devices. It includes a collection tank, with an air inlet pipe inserted into the top and an air inlet head inserted into the end of the air inlet pipe furthest from the collection tank. An exhaust pipe is inserted into the bottom of the collection tank, and a negative pressure device is fixedly installed on the outer wall of the collection tank. The exhaust pipe is movably inserted into the bottom of the negative pressure device, and a conduit is inserted into the top of the negative pressure device. The negative pressure device generates negative pressure inside the collection tank, allowing the air inlet pipe and air inlet head to smoothly draw in the non-condensable gas generated during the processing of oil-based rock cuttings. The non-condensable gas enters the collection tank and then flows through the exhaust pipe and conduit into subsequent processing equipment, avoiding direct discharge that could impact the environment. The negative pressure device has an upper cover and a lower cover, both of which are detachable for easy maintenance and repair by personnel.

Description

Technical Field

[0001] This utility model relates to the field of non-condensable gas collection devices, specifically a non-condensable gas collection device for oil-based rock cuttings processing. Background Technology

[0002] Oil-based drilling cuttings refer to oil-containing solid waste generated during the use of oil-based drilling fluids in oil and gas drilling. They mainly consist of drill cuttings, formation cuttings, crude oil, and drilling fluid additives. Classified as hazardous waste, they require harmless treatment to prevent environmental pollution. When processing oil-based rock cuttings, non-condensable gas (NVG) collection devices are typically used to avoid environmental pollution. Currently available NGF collection devices, when collecting NGF under negative pressure, usually have the negative pressure device installed inside the collection tank or similar equipment. While this achieves the desired negative pressure collection effect, it has significant drawbacks in practical use: First, the internal location of the negative pressure device makes regular maintenance inconvenient, and replacement is also difficult when damaged. Second, the internal installation leads to the problem of heat not being able to dissipate.

[0003] Therefore, this application proposes a non-condensable gas collection device for oil-based cuttings treatment. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a non-condensable gas collection device for oil-based rock cuttings treatment, thereby solving the deficiencies of the prior art.

[0005] The purpose of this utility model is achieved through the following technical solution: a non-condensable gas collection device for oil-based rock cuttings treatment, the negative pressure device includes a shell, the shell is fixedly installed on the outer wall of the collection tank, and a fan is fixedly installed in the inner cavity of the shell. An upper cover and a lower cover are fixedly installed at the top and bottom of the shell, respectively. The conduit and the exhaust pipe pass through the upper cover and the lower cover, respectively, and are connected to the inner cavity of the shell.

[0006] Furthermore, two slots are provided at the top and bottom of the outer shell, and two blocks are fixedly connected to the outer walls of the upper and lower covers, with the two blocks respectively inserted into the inner cavity of the corresponding slots.

[0007] Furthermore, two threaded holes are formed on the inner wall of the slot, and two bolts are threadedly connected to the card block, with the ends of the bolts threadedly connected to the inner cavities of the corresponding threaded holes.

[0008] Furthermore, sealing rings are fixedly installed on the outer walls of both the upper and lower covers, and the outer wall of the sealing rings fits against the inner wall of the outer shell.

[0009] Furthermore, a fixing ring is fixedly installed on the outer wall of the outer shell, and the fixing ring is sleeved and fixedly installed on the outer wall of the collection tank.

[0010] Furthermore, both the intake pipe and the exhaust pipe are equipped with check valves.

[0011] The beneficial effects of this utility model are: The negative pressure device generates negative pressure inside the collection tank, allowing the air inlet pipe and air inlet head to smoothly draw in the non-condensable gas generated during the processing of oil-based rock cuttings. The non-condensable gas enters the collection tank and then flows through the exhaust pipe and duct into the subsequent processing equipment, avoiding direct discharge that could affect the environment. The negative pressure device is equipped with an upper cover and a lower cover, both of which are removable, facilitating maintenance and repair operations by staff. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the external structure of this utility model; Figure 2 This is a schematic cross-sectional view of the present invention. Figure 3 This is a schematic diagram of the connection structure of the negative pressure device of this utility model; Figure 4 This is a schematic diagram of the composition and structure of the negative pressure device of this utility model; In the diagram, 1. Collection tank; 2. Inlet pipe; 3. Inlet head; 4. Exhaust pipe; 5. Check valve; 6. Negative pressure device; 61. Outer shell; 62. Slot; 63. Threaded hole; 64. Fan; 65. Top cover; 66. Bottom cover; 67. Locking block; 68. Bolt; 69. Sealing ring; 7. Fixing ring; 8. Conduit. Detailed Implementation

[0013] like Figure 1 , Figure 2 , Figure 3 and Figure 4 The present invention provides a non-condensable gas collection device for oil-based rock cuttings treatment, comprising: a collection tank 1, an air inlet pipe 2 inserted into the top of the collection tank 1, an air inlet head 3 inserted into the end of the air inlet pipe 2 away from the collection tank 1, an exhaust pipe 4 inserted into the bottom of the collection tank 1, and a negative pressure device 6 fixedly installed on the outer wall of the collection tank 1. The exhaust pipe 4 is movably inserted into the bottom of the negative pressure device 6, and a conduit 8 is inserted into the top of the negative pressure device 6.

[0014] Specifically, the negative pressure device 6 generates negative pressure, which allows the air inlet pipe 2 to work with the air inlet head 3 to directly absorb the non-condensable gas generated during the processing of oil-based rock cuttings. This allows the non-condensable gas to enter the collection tank 1 and then flow into the subsequent processing equipment through the exhaust pipe 4 and the duct 8, thus avoiding direct emissions that could affect the environment.

[0015] In this embodiment, as Figure 4As shown; the negative pressure device 6 includes a housing 61, which is fixedly installed on the outer wall of the collection tank 1, and a fan 64 is fixedly installed in the inner cavity of the housing 61. An upper cover 65 and a lower cover 66 are fixedly installed at the top and bottom of the housing 61, respectively. The conduit 8 and the exhaust pipe 4 pass through the upper cover 65 and the lower cover 66, respectively, and are connected to the inner cavity of the housing 61.

[0016] Specifically, when it is necessary to extract non-condensable gas generated during the processing of oil-based rock cuttings, the blower 64 can be driven to generate suction inside the outer casing 61. The suction enters the collection tank 1 through the exhaust pipe 4, and then the non-condensable gas is extracted using the air inlet pipe 2 and the air inlet head 3.

[0017] In this embodiment, as Figure 4 As shown; the top and bottom of the outer shell 61 are provided with two slots 62, and the outer walls of the upper cover 65 and the lower cover 66 are fixedly connected with two blocks 67, which are respectively inserted into the inner cavity of the corresponding slots 62.

[0018] Specifically, this design allows the upper cover 65 and the lower cover 66 to be removed from the outer casing 61, enabling staff to periodically remove the upper cover 65 and the lower cover 66 to perform maintenance on the internal components of the outer casing 61.

[0019] In this embodiment, as Figure 4 As shown; two threaded holes 63 are opened on the inner wall of the slot 62, and two bolts 68 are threadedly connected to the block 67, with the ends of the bolts 68 threadedly connected to the inner cavity of the corresponding threaded holes 63.

[0020] Specifically, the upper cover 65 and lower cover 66 are fixedly installed with the outer shell 61 by setting the bolt 68 and the threaded hole 63. When disassembling later, only the bolt 68 needs to be removed, which is convenient.

[0021] In this embodiment, as Figure 4 As shown, sealing rings 69 are fixedly installed on the outer walls of both the upper cover 65 and the lower cover 66, and the outer wall of the sealing ring 69 is in contact with the inner wall of the outer shell 61.

[0022] Specifically, the sealing ring 69 ensures the sealing performance of the inside of the outer shell 61 when the upper cover 65 and the lower cover 66 are installed, thus avoiding the problem of non-condensable gas leakage inside the outer shell 61.

[0023] In this embodiment, as Figure 1 As shown; a fixing ring 7 is fixedly installed on the outer wall of the outer shell 61, and the fixing ring 7 is sleeved and fixedly installed on the outer wall of the collection tank 1.

[0024] Specifically, by setting the fixing ring 7, the negative pressure device 6 is fixed to the outer wall of the collection tank 1, ensuring the stable performance of the negative pressure device 6 during operation.

[0025] In this embodiment, as Figure 1 As shown; both the intake pipe 2 and the exhaust pipe 4 are equipped with check valves 5.

[0026] Specifically, this design effectively prevents the backflow of non-condensable gases between the intake pipe 2 and the exhaust pipe 4.

Claims

1. A non-condensable gas collection device for oil-based rock cuttings treatment, characterized in that, The system includes a collection tank (1), an air inlet pipe (2) is inserted into the top of the collection tank (1), an air inlet head (3) is inserted into the end of the air inlet pipe (2) away from the collection tank (1), an exhaust pipe (4) is inserted into the bottom of the collection tank (1), and a negative pressure device (6) is fixedly installed on the outer wall of the collection tank (1). The exhaust pipe (4) is movably inserted into the bottom of the negative pressure device (6), and a conduit (8) is inserted into the top of the negative pressure device (6).

2. The non-condensable gas collection device for oil-based rock cuttings treatment according to claim 1, characterized in that, The negative pressure device (6) includes a shell (61), which is fixedly installed on the outer wall of the collection tank (1), and a fan (64) is fixedly installed in the inner cavity of the shell (61). An upper cover (65) and a lower cover (66) are fixedly installed at the top and bottom of the shell (61), respectively. The conduit (8) and the exhaust pipe (4) pass through the upper cover (65) and the lower cover (66), respectively, and are connected to the inner cavity of the shell (61).

3. A non-condensable gas collection device for oil-based rock cuttings treatment according to claim 2, characterized in that, The top and bottom of the outer shell (61) are provided with two slots (62), and two blocks (67) are fixedly connected to the outer walls of the upper cover (65) and the lower cover (66). The two blocks (67) are respectively inserted into the inner cavity of the corresponding slots (62).

4. A non-condensable gas collection device for oil-based rock cuttings treatment according to claim 3, characterized in that, Two threaded holes (63) are provided on the inner wall of the slot (62), and two bolts (68) are threadedly connected to the block (67). The ends of the bolts (68) are threadedly connected to the inner cavity of the corresponding threaded holes (63).

5. A non-condensable gas collection device for oil-based rock cuttings treatment according to claim 2, characterized in that, Both the upper cover (65) and the lower cover (66) are fitted with sealing rings (69) on their outer walls, and the outer wall of the sealing rings (69) is in contact with the inner wall of the outer shell (61).

6. A non-condensable gas collection device for oil-based rock cuttings treatment according to claim 2, characterized in that, A fixing ring (7) is fixedly installed on the outer wall of the outer shell (61), and the fixing ring (7) is sleeved and fixedly installed on the outer wall of the collection tank (1).

7. A non-condensable gas collection device for oil-based rock cuttings treatment according to claim 2, characterized in that, Both the intake pipe (2) and the exhaust pipe (4) are equipped with check valves (5).

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