CN218324793U

CN218324793U - A recovery unit that is arranged in oil base mud detritus base oil mud

Info

Publication number: CN218324793U
Application number: CN202221995848.9U
Authority: CN
Inventors: 陈友明
Original assignee: Xinjiang Tianxia Investment Environmental Protection Technology Co ltd
Current assignee: Xinjiang Tianxia Investment Environmental Protection Technology Co ltd
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2023-01-17
Anticipated expiration: 2032-07-29

Abstract

The utility model discloses a recovery unit that is arranged in oil base mud detritus base oil base mud relates to the processing technology field of oil and gas well drilling in-process resource recovery, including angle adjustable airtight auger delivery ware A and second grade vibration screening ware, second grade vibration screening ware is provided with coarse fodder discharge gate and fine material discharge gate with one side, the coarse fodder discharge gate is connected with waste residue collecting box A through transfer chain A, the fine material discharge gate connects gradually airtight auger delivery ware B and horizontal screw centrifuge, horizontal screw centrifuge includes solid phase discharge gate and liquid phase discharge gate, the solid phase discharge gate is connected with the mud collecting box through transfer chain B, the liquid phase discharge gate is connected with the homogeneity buffer tank of taking heat transfer system through the recovery pipeline, the homogeneity buffer tank is connected with the storage tank body that is used for placing the oil base mud of recovery through the pipeline; the utility model relates to a rationally, can high-efficiently retrieve oil base mud, and can adjust the advantage of homogeneity buffer tank temperature.

Description

A recovery unit that is arranged in oil base mud detritus base oil mud

Technical Field

The utility model relates to a processing technology field of oil and gas well drilling in-process resource recovery, more specifically relate to a recovery unit technical field who is arranged in oil base mud detritus base oil mud.

Background

Oil-based muds, also known as oil-based drilling fluids, consist essentially of oil, water, organoclays and oil-soluble chemical treatments. The oil-based mud is resistant to high temperature and salt and calcium corrosion, is beneficial to well wall stability, has good lubricity and little damage to oil and gas reservoirs, and is widely applied to various drilling platforms, and the base oil in the oil-based mud is diesel oil.

The oil-based mud drilling has special advantages under the conditions of complex stratum, special drilling or drilling blockage accidents and the like, but solid wastes such as waste oil-based mud, oil-containing drill cuttings and the like are generated in the using process of the oil-based mud drilling.

At present, the diesel oil-based oil-containing drilling cuttings and waste slurry treatment technology mainly comprise a microbial metabolic degradation method, a pyrolysis method, an incineration method, a chemical cleaning method and the like. The microbial metabolism degradation method utilizes the metabolism of microorganisms to decompose low-oil-content solid-phase oil substances, but the metabolism period of the microorganisms is usually longer, meanwhile, the aromatic hydrocarbon content in diesel oil is higher, the microbial metabolism has obvious biotoxicity and obvious inhibition effect on the metabolism of the microorganisms, and the microbial metabolism is to decompose the metabolism of the diesel oil substances and is not beneficial to the recycling of the diesel oil substances. The pyrolysis method utilizes anaerobic pyrolysis separation, and has large equipment investment and large energy consumption. The incineration method realizes the removal of oil-based mud pollution by combustion of the oil-based mud in combination with fuel, but has high treatment cost and may bring secondary pollution. The chemical cleaning method utilizes emulsification, dissolution and separation, demulsification and recovery of oil phase, but the treatment process needs solvent water consumption, and oily sewage is generated, thus secondary pollution is caused.

How to solve the above technical problems has been a direction of effort for those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the technical problem that cycle length, power consumption are big, with high costs and produce secondary pollution easily that abandonment oil base mud recovery method exists, the utility model provides a recovery unit for base oil base mud in oil base mud detritus.

The utility model discloses a realize above-mentioned purpose and specifically adopt following technical scheme:

the utility model provides a recovery unit that is arranged in oil base mud detritus base oil mud, includes angle adjustable airtight auger delivery ware A and second grade vibration screening ware, second grade vibration screening ware is provided with coarse fodder discharge gate and fine material discharge gate with one side, the coarse fodder discharge gate is connected with waste residue collecting box A through transfer chain A, the fine material discharge gate has connected gradually airtight auger delivery ware B and horizontal screw centrifuge, horizontal screw centrifuge includes solid phase discharge gate and liquid phase discharge gate, the solid phase discharge gate is connected with the mud collecting box through transfer chain B, the liquid phase discharge gate has the homogeneity buffer tank of taking heat transfer system through recovery pipe connection, the homogeneity buffer tank has the storage tank body that is arranged in placing the base oil in the recovery oil base mud through pipe connection.

Furthermore, the homogeneity buffer tank comprises an inner shell and an outer shell, the outer shell is wrapped on the side wall of the inner shell, the inner shell and the outer shell form a temperature control cavity, a liquid inlet and a liquid outlet which are communicated with the inside of the temperature control cavity are respectively arranged on the upper portion and the lower portion of the outer shell, and the liquid inlet and the liquid outlet are communicated with the two ends of the heat exchange system.

Further, heat transfer system includes that the both ends pass through the sealed casing of head, be provided with two baffles in the casing, two baffles fall into the cushion chamber at both ends and the heat transfer chamber in the middle of the casing, be provided with the heat transfer import and the heat transfer export with inlet and liquid outlet intercommunication on the cushion chamber respectively, be provided with many both ends and the heat exchange tube that corresponds the heat transfer chamber intercommunication in the heat transfer chamber, be provided with hot water import and hot water export on the heat transfer chamber that is located the heat transfer chamber at heat transfer chamber both ends, be located the heat transfer intracavity between hot water import and the hot water export and crisscross from top to bottom and be provided with the polylith guide plate, the heat exchange tube passes the guide plate.

Further, the inside homogeneous stirring piece that is provided with of inner shell, matter stirring piece top passes the inner shell through the bearing and is connected with driving motor, the inner shell top is provided with material import pipe and material outlet pipe, shell bottom one side is provided with the miscellaneous mouth that removes with inner shell bottom intercommunication, the slope of inner shell bottom sets up, and the miscellaneous mouth that removes is located the lower side of inner shell bottom slope.

Furthermore, the homogeneous stirring piece comprises a stirring shaft and three groups of stirring anchors arranged at the bottom of the stirring shaft, and a reinforcing block is arranged between every two groups of stirring anchors.

Further, the homogeneous stirring piece comprises a stirring shaft and a U-shaped piece which is arranged at the bottom of the stirring shaft and has an upward opening and a straight edge with unequal heights, and a supporting rod connected with the stirring shaft is arranged on the inner side of the U-shaped piece.

Further, airtight auger delivery ware A includes the base, articulates at base one side and carries the main part, articulates the drive of base opposite side and carry the main part around pin joint pivoted telescopic cylinder, telescopic cylinder's piston rod articulates in carrying the main part, carry the main part bottom be provided with carry the inside feeder hopper that communicates of main part, carry the main part top to be provided with ejection of compact pipe fitting.

The beneficial effects of the utility model are as follows:

1. the utility model relates to a rationally, can high-efficient recovery oil base mud, the rate of recovery can reach about 75%, and the oil base mud of retrieving can be retrieved and reapplied in drilling engineering. Meanwhile, the content of pollutants in the separated solid phase is greatly reduced, the content of petroleum is less than 8%, the economic benefit is remarkable, and the temperature of the homogenizing buffer tank can be adjusted to ensure that the quality of the recovered oil-based slurry is in the best state.

2. The method comprises the steps of pouring oily waste generated in the oil-based mud drilling process into a closed spiral conveyor A, uniformly conveying the oily waste to a secondary vibration screening device by the closed spiral conveyor A, separating by the secondary vibration screening device, intercepting partial foreign matters such as stones on the upper portion of the secondary vibration screening device, entering a conveying line A through a coarse material discharge port, conveying the oily waste to a waste residue collecting box A through the conveying line A for collection, conveying the separated oil-based mud to a slurry collecting box A through a fine material discharge port of the secondary vibration screening device, conveying the fine material discharge port to a horizontal spiral centrifuge through a closed spiral conveyor B, centrifugally separating, conveying dry solids to the conveying line B through a solid material discharge port, conveying the dry solids to the slurry collecting box through the conveying line B for collection, conveying base oil in the separated oil-based mud to a homogenizing buffer tank through a liquid material discharge port, mixing and homogenizing in the homogenizing buffer tank, and then conveying the base oil into a storage tank body.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic diagram of a homogeneous buffer tank and a heat exchange system;

FIG. 3 is a schematic view of a structure of the homogenizing mixer;

FIG. 4 is a schematic view of another configuration of the homogenizing mixer;

fig. 5 is a schematic structural view of the hermetic screw conveyor a;

reference numerals: 1-closed screw conveyor A, 1-1-base, 1-2-telescopic cylinder, 1-3-discharging pipe fitting, 1-4-conveying main body, 1-5-feed hopper, 2-secondary vibrating screen, 3-closed screw conveyor B, 4-centrifuge, 5-homogenizing buffer tank, 5-1-liquid inlet, 5-2-outer shell, 5-3-inner shell, 5-4-homogenizing stirring piece, 5-4.1-stirring shaft, 5-4.2-stirring anchor, 5-4.3-reinforcing block, 5-5-material inlet pipe, 5-6-driving motor, 5-7-material outlet pipe, 5-8-impurity removing port, 5-9-liquid outlet, 6-heat exchange system, 6-1-shell, 6-2-baffle, 6-3-hot water outlet, 6-4-guide plate, 6-5-heat exchange pipe, 6-6-heat exchange outlet, 6-7-heat exchange inlet, 6-8-hot water inlet and 7-storage tank.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that the directions or positional relationships indicated by the terms "inside", "outside", "upper", and the like are based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the utility model is conventionally placed when in use, and are only for convenience of describing the utility model and simplifying the description, but not for indicating or implying that the device or element indicated must have a specific direction, be constructed and operated in a specific direction, and therefore, should not be construed as limiting the present invention.

Example 1

As shown in fig. 1 to 5, this embodiment provides a recovery unit for basic oil-based mud in oil-based mud detritus, including angle adjustable airtight screw conveyor A1 and second grade vibration screening ware 2, second grade vibration screening ware 2 is provided with coarse fodder discharge gate and fine material discharge gate with one side, the coarse fodder discharge gate is connected with waste residue collecting box a through transfer line a, the fine material discharge gate has connected gradually airtight screw conveyor B3 and horizontal screw centrifuge 4, horizontal screw centrifuge 4 includes solid phase discharge gate and liquid phase discharge gate, the solid phase discharge gate is connected with the mud collecting box through transfer line B, the liquid phase discharge gate is connected with homogeneity buffer tank 5 who takes heat transfer system 6 through the recovery pipeline, homogeneity buffer tank 5 is connected with the storage tank body 7 that is used for placing the oil-based mud of retrieving through the pipeline.

In the embodiment, oily waste generated in the oil-based mud drilling process is poured into a closed spiral conveyor A, the closed spiral conveyor A uniformly conveys the oily waste to a secondary vibration screening device, part of foreign matters such as stones are intercepted on the upper part of the secondary vibration screening device through separation of the secondary vibration screening device, the foreign matters enter a conveying line A through a coarse material discharge port, the oily waste is conveyed to a waste residue collecting box A through the conveying line A to be collected, the separated oil-based mud passes through a fine material discharge port of the secondary vibration screening device, the fine material discharge port enters a horizontal spiral centrifugal machine through a closed spiral conveyor B, after centrifugal separation, dry solids enter a conveying line B through a solid material discharge port, the dry solids are conveyed to a mud collecting box through the conveying line B to be collected, base oil in the separated oil-based mud enters a homogenizing buffer tank through a liquid material discharge port, and the base oil is mixed and homogenized in the homogenizing buffer tank and then enters a storage tank body.

Example 2

The implementation is further optimized on the basis of the embodiment 1, and specifically comprises the following steps:

the homogenizing buffer tank 5 comprises an inner shell 5-3 and an outer shell 5-2, the outer shell 5-2 is wrapped on the side wall of the inner shell 5-3, the inner shell 5-3 and the outer shell 5-2 form a temperature control cavity, a liquid inlet 5-1 and a liquid outlet 5-9 which are communicated with the inside of the temperature control cavity are respectively arranged on the upper side and the lower side of the outer shell 5-2, and the liquid inlet 5-1 and the liquid outlet 5-9 are communicated with two ends of a heat exchange system 6.

The heat exchange system 6 comprises a shell 6-1 with two ends sealed through end sockets, two partition plates 6-2 are arranged in the shell 6-1, the shell 6-1 is divided into a buffer cavity with two ends and a heat exchange cavity in the middle by the two partition plates 6-2, a heat exchange inlet 6-7 and a heat exchange outlet 6-6 which are communicated with a liquid inlet 5-1 and a liquid outlet 5-9 are respectively arranged on the buffer cavity, a plurality of heat exchange tubes 6-5 with two ends communicated with the corresponding heat exchange cavities are arranged in the heat exchange cavity, a hot water inlet 6-8 and a hot water outlet 6-3 are arranged on the heat exchange cavity at two ends of the heat exchange cavity, a plurality of guide plates 6-4 are staggered up and down in the heat exchange cavity between the hot water inlet 6-8 and the hot water outlet 6-3, and the heat exchange tubes 6-5 penetrate through the guide plates 6-4.

The inner shell 5-3 is internally provided with a homogeneous stirring part 5-4, the top of the homogeneous stirring part 5-4 penetrates through the inner shell 5-3 through a bearing to be connected with a driving motor 5-6, the top of the inner shell 5-3 is provided with a material inlet pipe 5-5 and a material outlet pipe 5-7, one side of the bottom of the outer shell 5-2 is provided with a impurity removing port 5-8 communicated with the bottom in the inner shell 5-3, the bottom of the inner shell 5-3 is obliquely arranged, and the impurity removing port 5-8 is positioned on the lower side of the bottom of the inner shell 5-3.

The homogeneous stirring piece 5-4 comprises a stirring shaft 5-4.1 and three groups of stirring anchors 5-4.2 arranged at the bottom of the stirring shaft 5-4.4, and a reinforcing block 5-4.3 is arranged between every two adjacent groups of stirring anchors 5-4.2.

The homogeneous stirring piece 5-4 comprises a stirring shaft 5-4.1 and a U-shaped piece which is arranged at the bottom of the stirring shaft 5-4.1 and has an upward opening and a straight edge with unequal height, and a supporting rod connected with the stirring shaft 5-4.1 is arranged at the inner side of the U-shaped piece.

The closed spiral conveyor A1 comprises a base 1-1, a conveying main body 1-4 hinged to one side of the base 1-1, and a telescopic cylinder 1-2 hinged to the other side of the base 1-1 and driving the conveying main body 1-4 to rotate around a hinged point, a piston rod of the telescopic cylinder 1-2 is hinged to the conveying main body 1-4, a feeding hopper 1-5 communicated with the inside of the conveying main body 1-4 is arranged at the bottom of the conveying main body 1-4, and a discharging pipe fitting 1-3 is arranged at the top of the conveying main body 1-4.

Claims

1. The utility model provides a recovery unit that is arranged in oil base mud detritus base oil base mud, its characterized in that, includes angle adjustable airtight screw conveyer A (1) and second grade vibration screening ware (2), second grade vibration screening ware (2) are provided with coarse fodder discharge gate and fine material discharge gate with one side, the coarse fodder discharge gate is connected with waste residue collecting box A through transfer chain A, the fine material discharge gate has connected gradually airtight screw conveyer B (3) and horizontal screw centrifuge (4), horizontal screw centrifuge (4) include solid phase discharge gate and liquid phase discharge gate, the solid phase discharge gate is connected with the mud collecting box through transfer chain B, the liquid phase discharge gate has homogeneity buffer tank (5) of taking heat transfer system (6) through retrieving pipe connection, homogeneity buffer tank (5) have through pipe connection be arranged in placing the storage tank body (7) of base oil among the recovery oil base mud.

2. The recovery device for the base oil-based mud in the detritus of the oil-based mud according to claim 1, wherein the homogeneous buffer tank (5) comprises an inner shell (5-3) and an outer shell (5-2), the outer shell (5-2) is wrapped on the side wall of the inner shell (5-3), the inner shell (5-3) and the outer shell (5-2) form a temperature control cavity, the upper part and the lower part of the outer shell (5-2) are respectively provided with a liquid inlet (5-1) and a liquid outlet (5-9) which are communicated with the inside of the temperature control cavity, and the liquid inlet (5-1) and the liquid outlet (5-9) are communicated with two ends of the heat exchange system (6).

3. The recycling device for the base oil-based mud in the oil-based mud detritus as defined in claim 2, wherein the heat exchange system (6) comprises a housing (6-1) with two ends sealed by end sockets, two partition plates (6-2) are arranged in the housing (6-1), the housing (6-1) is divided into a buffer cavity with two ends and a heat exchange cavity in the middle by the two partition plates (6-2), the buffer cavity is provided with a heat exchange inlet (6-7) and a heat exchange outlet (6-6) which are respectively communicated with the liquid inlet (5-1) and the liquid outlet (5-9), the heat exchange cavity is provided with a plurality of heat exchange tubes (6-5) with two ends communicated with the corresponding heat exchange cavities, the heat exchange cavities at two ends of the heat exchange cavity are provided with a hot water inlet (6-8) and a hot water outlet (6-3), the heat exchange cavities between the hot water inlet (6-8) and the hot water outlet (6-3) are provided with a plurality of guide plates (6-4) in an up-and down staggered manner, and the heat exchange tubes (6-5) pass through the guide plates (6-4).

4. The recovery device for the base oil-based mud in the detritus of the oil-based mud according to claim 2, wherein the inner shell (5-3) is internally provided with a homogeneous stirring member (5-4), the top of the homogeneous stirring member (5-4) is connected with a driving motor (5-6) through the inner shell (5-3) by a bearing, the top of the inner shell (5-3) is provided with a material inlet pipe (5-5) and a material outlet pipe (5-7), one side of the bottom of the outer shell (5-2) is provided with a impurity removing port (5-8) communicated with the bottom in the inner shell (5-3), the bottom of the inner shell (5-3) is obliquely arranged, and the impurity removing port (5-8) is positioned on the lower side of the bottom of the inner shell (5-3).

5. The apparatus for recovering base oil-based mud from debris of oil-based mud according to claim 4, wherein said homogenizing mixer (5-4) comprises a mixing shaft (5-4.1) and three sets of mixing anchors (5-4.2) disposed at the bottom of the mixing shaft (5-4.4), and a reinforcing block (5-4.3) is disposed between two adjacent sets of mixing anchors (5-4.2).

6. The apparatus for recovering the base oil-based mud from the detritus of oil-based mud according to claim 4, wherein the homogenizing mixer (5-4) comprises a mixing shaft (5-4.1) and a U-shaped member having a non-uniform height at the bottom of the mixing shaft (5-4.1), and the U-shaped member has a support rod connected to the mixing shaft (5-4.1) at the inner side.

7. The recovery device for the base oil-based mud in the detritus of the oil-based mud according to claim 1, wherein the closed screw conveyor A (1) comprises a base (1-1), a conveying body (1-4) hinged on one side of the base (1-1), and a telescopic cylinder (1-2) hinged on the other side of the base (1-1) and driving the conveying body (1-4) to rotate around a hinged point, a piston rod of the telescopic cylinder (1-2) is hinged on the conveying body (1-4), a feed hopper (1-5) communicated with the inside of the conveying body (1-4) is arranged at the bottom of the conveying body (1-4), and a discharge pipe (1-3) is arranged at the top of the conveying body (1-4).