Self-washing type efficient drilling fluid processor

Abstract

The invention relates to the technical field of drilling equipment, in particular to a self-washing type efficient drilling fluid treater which comprises a separation tank, three sets of supports which are sequentially distributed from top to bottom are installed in the separation tank, and a first-stage flow dividing umbrella, a first-stage flow dividing ring and a second-stage flow dividing ring are sequentially installed in the supports which are arranged from top to bottom; a liquid inlet pipe is further installed on one side of the separation tank, one end of the liquid inlet pipe is inserted into the separation tank, a first-stage liquid curtain is formed by the first-stage flow dividing umbrella through dripping of liquid discharged by the liquid inlet pipe and drips to a first-stage flow dividing ring, a second-stage liquid curtain is formed through the first-stage flow dividing ring, and a third-stage liquid curtain is formed by the second-stage liquid curtain through dripping on a second-stage flow dividing ring installed above the support; through the special structural design in the separation tank, entering liquid is impacted for multiple times to form a multi-layer columnar liquid curtain, the original volume state is broken through each time of impact, the liquid curtain is reconstructed to form a new free interface, gas and bubbles in the original volume are effectively released, and the separation effect is at least improved by multiple times compared with that of existing equipment.

Description

Technical Field

[0001] The invention relates to the technical field of drilling equipment, in particular to a self-washing high-efficiency drilling fluid processor. Background Art

[0002] The existing self-washing high-efficiency drilling fluid processor is a special equipment for primary degassing, which is specially used to process the gas-containing drilling fluid replaced at the throttling manifold, fully separate the free gas and large bubbles with a diameter of about φ3 to φ25 mm, discharge the gas, and recover the preliminarily purified drilling fluid. When the drilling fluid processor is in use, due to its simple internal structure, the gas and bubbles in the original volume cannot be released, so the bubble and liquid separation efficiency is not good, which easily causes the drilling pump to have "cavitation" damage to the cylinder liner due to the gas in the drilling fluid, increasing the probability of well kick and even blowout accidents. Therefore, a self-washing high-efficiency drilling fluid processor is proposed to address the above problems. Summary of the invention

[0003] The object of the present invention is to provide a self-washing high-efficiency drilling fluid processor to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] As an optional solution of the self-washing high-efficiency drilling fluid processor described in the present invention, a self-washing high-efficiency drilling fluid processor includes a separation tank,

[0006] The separation tank is provided with three groups of brackets which are arranged in sequence up and down, and the brackets arranged up and down are provided with a primary diverter umbrella, a primary diverter ring and a secondary diverter ring in sequence;

[0007] A liquid inlet pipe is also installed on one side of the separation tank, and one end of the liquid inlet pipe is inserted into the separation tank. The first-level diverter umbrella forms a first-level liquid curtain through the dripping of the liquid discharged from the liquid inlet pipe and drips to the first-level diverter ring, and forms a second-level liquid curtain through the first-level diverter ring. The second-level liquid curtain forms a third-level liquid curtain by dripping on the second-level diverter ring installed above the bracket;

[0008] A sewage discharge joint for sewage discharge is installed at the bottom of the separation tank, and a liquid discharge joint for liquid discharge is also installed at the lower outer side of the separation tank;

[0009] An L-shaped exhaust pipe is installed on the top of the separation tank, and a pressure gauge and a liquid level sensor installed on the top of the separation tank are respectively installed on both sides of the exhaust pipe, and a liquid level display for displaying the liquid level inside the separation tank is also installed on the side of the separation tank.

[0010] The existing self-washing high-efficiency drilling fluid processor is a special equipment for primary degassing, which is specially used to process the gas-containing drilling fluid replaced at the throttling manifold, fully separate the free gas and large bubbles with a diameter of about φ3 to φ25mm, discharge the gas, and recover the initially purified drilling fluid. When the drilling fluid processor is in use, due to its simple internal structure, the gas and bubbles in the original volume cannot be released, so the bubble and liquid separation efficiency is poor, which easily causes the drilling pump to have "cavitation" due to the gas in the drilling fluid, damages the cylinder liner, increases the probability of well kick, and even blowout accidents. However, this equipment, through the special structural design inside the separation tank, makes the incoming liquid produce 5 times The collision forms 8 layers of columnar liquid curtains. Each collision will break the original volume state, rebuild the liquid curtain to form a new free interface, and effectively release the gas and bubbles in the original volume. Theoretically, the separation effect is at least 5 times higher than that of existing equipment. At the same time, the liquid level sensor and liquid level display can be set to realize real-time monitoring of the liquid level in the separation tank. The low-level display is convenient for operators to detect abnormal liquid levels in time, effectively prevent environmental pollution caused by "holding and bubbling tanks", and also reduce production costs. The separation tank is connected to the drain joint and the sewage joint with a bell-mouth connection, which can effectively reduce the probability of blockage caused by the accumulation of solid particles and reduce the flow resistance of liquid outflow.

[0011] As an optional solution of the self-washing high-efficiency drilling fluid processor described in the present invention, the liquid inlet pipe is arranged in an L shape, and a liquid inlet pressure gauge is installed on the outer side of the liquid inlet end of the liquid inlet pipe.

[0012] A liquid inlet pressure gauge is installed on the outside of the liquid inlet pipe. The liquid inlet pressure gauge can detect the hydraulic pressure inside the liquid inlet pipe, which helps to understand the amount of liquid entering the separation tank.

[0013] As an optional solution of the self-washing high-efficiency drilling fluid processor described in the present invention, the first-stage diverter umbrella is arranged in a central protrusion, and the discharge end of the liquid inlet pipe is located directly above the first-stage diverter umbrella.

[0014] As an optional solution of the self-washing high-efficiency drilling fluid processor described in the present invention, the number of the primary diverter ring and the secondary diverter ring are both two, and the primary diverter ring and the secondary diverter ring are symmetrically arranged.

[0015] This setting can ensure that the drilling fluid enters the first-level diverter umbrella through the liquid inlet pipe, and forms the first-level liquid curtain on both sides through the first-level diverter umbrella, and then drips through the first-level diverter ring and the second-level diverter ring to form the second-level liquid curtain and the third-level liquid curtain, thereby forming multiple groups of liquid impacts, which can effectively release the gas and bubbles in the original liquid volume.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention and the device, through the special structural design inside the separation tank, make the incoming liquid produce multiple collisions to form a multi-layer columnar liquid curtain. Each collision will break the original volume state, rebuild the liquid curtain to form a new free interface, and effectively release the gas and bubbles in the original volume. In theory, the separation effect is at least several times higher than that of the existing equipment.

[0018] At the same time, the liquid level sensor and liquid level display can realize real-time monitoring of the liquid level in the separation tank, and low-level display can be used to facilitate operators to find abnormal liquid levels in time, effectively prevent environmental pollution caused by "holding and overflowing tanks", and also reduce production costs;

[0019] The separation tank is connected to the liquid discharge joint and the sewage discharge joint in a bell-mouth manner, which can effectively reduce the probability of blockage caused by the accumulation of solid particles and reduce the flow resistance of the liquid outflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a top sectional view of the separation tank of the present invention.

[0022] In the figure: 1. separation tank; 2. liquid inlet pipe; 3. liquid inlet pressure gauge; 4. bracket; 5. first-stage diverter umbrella; 6. first-stage liquid curtain; 7. first-stage diverter ring; 8. second-stage liquid curtain; 9. second-stage diverter ring; 10. third-stage liquid curtain; 11. liquid level display; 12. liquid discharge joint; 13. sewage discharge joint; 14. exhaust pipe; 15. pressure gauge; 16. liquid level sensor. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Example 1

[0025] See also Figure 1 and Figure 2 , the present invention provides a technical solution:

[0026] A self-washing high-efficiency drilling fluid processor, comprising a separation tank 1,

[0027] The separation tank 1 is provided with three groups of brackets 4 which are arranged in sequence up and down. The brackets 4 arranged up and down are provided with a primary flow divider 5, a primary flow divider ring 7 and a secondary flow divider ring 9 in sequence.

[0028] A liquid inlet pipe 2 is also installed on one side of the separation tank 1, and one end of the liquid inlet pipe 2 is inserted into the separation tank 1. The first-level diverter umbrella 5 forms a first-level liquid curtain 6 through the dripping of the liquid discharged from the liquid inlet pipe 2 and drips to the first-level diverter ring 7, and forms a second-level liquid curtain 8 through the first-level diverter ring 7. The second-level liquid curtain 8 drips on the second-level diverter ring 9 installed above the bracket 4 to form a third-level liquid curtain 10.

[0029] A sewage discharge joint 13 for sewage discharge is installed at the bottom of the separation tank 1, and a liquid discharge joint 12 for liquid discharge is also installed at the lower outer side of the separation tank 1;

[0030] An L-shaped exhaust pipe 14 is installed on the top of the separation tank 1, and a pressure gauge 15 and a liquid level sensor 16 installed on the top of the separation tank 1 are respectively provided on both sides of the exhaust pipe 14, and a liquid level display 11 for displaying the liquid level inside the separation tank 1 is also installed on the side of the separation tank 1.

[0031] The existing self-washing high-efficiency drilling fluid processor is a special equipment for primary degassing, which is specially used to process the gas-containing drilling fluid replaced at the throttling manifold, fully separate the free gas and large bubbles with a diameter of about φ3 to φ25 mm, discharge the gas, and recover the initially purified drilling fluid. When the drilling fluid processor is in use, due to its simple internal structure, the gas and bubbles in the original volume cannot be released, so the bubble and liquid separation efficiency is poor, which easily causes the drilling pump to have "cavitation" due to the gas in the drilling fluid, damages the cylinder liner, increases the probability of well kick, and even blowout accidents. However, this equipment, through the special structural design inside the separation tank, makes the incoming liquid produce 5 collisions, forming 8 layers of columnar liquid curtains will break the original volume state at each collision, rebuild the liquid curtain to form a new free interface, and effectively release the gas and bubbles in the original volume. Theoretically, the separation effect is at least 5 times higher than that of existing equipment. At the same time, through the set liquid level sensor 16 and liquid level display 11, the liquid level in the separation tank 1 can be monitored in real time and low-level display can be achieved, which is convenient for operators to find abnormal liquid levels in time and effectively prevent environmental pollution caused by "holding and bubbling tanks", while also reducing production costs; the separation tank 1 is connected to the drain joint 12 and the sewage joint 13 in a bell-mouth connection, which can effectively reduce the probability of blockage caused by the accumulation of solid particles here and reduce the flow resistance of liquid outflow.

[0032] Example 2

[0033] This embodiment is an improvement on embodiment 1. Figure 1 Specifically, the liquid inlet pipe 2 is L-shaped, and a liquid inlet pressure gauge 3 is installed on the outer side of the liquid inlet end of the liquid inlet pipe 2.

[0034] A liquid inlet pressure gauge 3 is installed on the outside of the liquid inlet pipe 2 , and the liquid inlet pressure gauge 3 can detect the hydraulic pressure inside the liquid inlet pipe 2 , which helps to understand the amount of liquid entering the separation tank 1 .

[0035] Example 3

[0036] This embodiment is an improvement on embodiment 2. Figure 1 Specifically, the first-stage diverter umbrella 5 is arranged to be centrally protruding, and the discharge end of the liquid inlet pipe 2 is located directly above the first-stage diverter umbrella 5 .

[0037] The number of the primary diverter ring 7 and the number of the secondary diverter ring 9 are both two, and the primary diverter ring 7 and the secondary diverter ring 9 are symmetrically arranged.

[0038] This arrangement can ensure that the drilling fluid enters the first-level diverter umbrella 5 through the liquid inlet pipe 2, and forms the first-level liquid curtain 6 on both sides through the first-level diverter umbrella 5, and then can drip through the first-level diverter ring 7 and the second-level diverter ring 9 to form the second-level liquid curtain 8 and the third-level liquid curtain 10, thereby forming multiple groups of liquid impacts, which can effectively release the gas and bubbles in the original liquid volume.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-washing high-efficiency drilling fluid processor, characterized in that: comprising a separation tank (1), The separation tank (1) is provided with three groups of brackets (4) arranged in sequence up and down, and the brackets (4) arranged up and down are provided with a primary flow-dividing umbrella (5), a primary flow-dividing ring (7) and a secondary flow-dividing ring (9) in sequence; A liquid inlet pipe (2) is also installed on one side of the separation tank (1), and one end of the liquid inlet pipe (2) is inserted into the interior of the separation tank (1). The first-level diverter umbrella (5) forms a first-level liquid curtain (6) by dripping liquid discharged from the liquid inlet pipe (2) and dripping to a first-level diverter ring (7), and forms a second-level liquid curtain (8) through the first-level diverter ring (7). The second-level liquid curtain (8) forms a third-level liquid curtain (10) by dripping to a second-level diverter ring (9) installed above the bracket (4); A sewage discharge joint (13) for discharging sewage is installed at the bottom of the separation tank (1), and a liquid discharge joint (12) for discharging liquid is also installed at the lower part of the outer side of the separation tank (1); An L-shaped exhaust pipe (14) is installed on the top of the separation tank (1), and a pressure gauge (15) and a liquid level sensor (16) installed on the top of the separation tank (1) are respectively provided on both sides of the exhaust pipe (14), and a liquid level display (11) for displaying the liquid level inside the separation tank (1) is also installed on the side of the separation tank (1).

2. A self-washing high-efficiency drilling fluid processor according to claim 1, characterized in that: The liquid inlet pipe (2) is arranged in an L shape, and a liquid inlet pressure gauge (3) is installed on the outside of the liquid inlet end of the liquid inlet pipe (2).

3. A self-washing high-efficiency drilling fluid processor according to claim 1, characterized in that: The first-stage flow-dividing umbrella (5) is arranged in a central protrusion, and the liquid discharge end of the liquid inlet pipe (2) is located directly above the first-stage flow-dividing umbrella (5).

4. A self-washing high-efficiency drilling fluid processor according to claim 1, characterized in that: The number of the primary flow diverter ring (7) and the number of the secondary flow diverter ring (9) are both two, and the primary flow diverter ring (7) and the secondary flow diverter ring (9) are symmetrically arranged.

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