Wheel type lifting and feeding skid-mounted device for comprehensive recovery treatment of drilling cuttings

Abstract

The utility model discloses a wheel type lifting and feeding skid-mounted device for comprehensive recovery treatment of drilling cuttings, which comprises a skid-mounted base platform, and a first wheel type lifting and feeding machine and a second wheel type lifting and feeding machine are respectively arranged at two longitudinal ends of the skid-mounted base platform. A liquid storage bin is arranged between the first wheel type lifting feeder and the second wheel type lifting feeder, the plane of the upper end of the liquid storage bin is used for containing drilling cutting treatment equipment, and a drilling cutting collecting bin with the upper end open and a solid slag collecting bin with the upper end open are reserved between the first wheel type lifting feeder and the liquid storage bin and between the second wheel type lifting feeder and the liquid storage bin respectively. A first spiral conveyor and a second spiral conveyor are arranged on the two transverse sides of the liquid storage bin correspondingly, and a pipe spiral conveyor of the first wheel type lifting feeder is connected with the drilling cutting treatment equipment to feed lifted drilling cutting into the drilling cutting treatment equipment to be treated. A pipe screw conveyor of the second wheel type lifting feeder is connected with a residue soil box to send out lifted solid residues, and a liquid pump is arranged on the liquid storage bin and used for sending out a liquid phase in the liquid storage bin.

Description

Technical Field

[0001] The utility model relates to a wheeled lifting and feeding skid-mounted device for comprehensive recovery and treatment of drill cuttings. Background Art

[0002] During oil and gas drilling, large quantities of drilling mud are required to stabilize the wellbore, lubricate and cool the drill bit, and carry drill cuttings. Consequently, large quantities of drill cuttings are generated at drilling sites. These cuttings contain clay, weighting materials, various chemical treatment agents, and rock debris. The main environmental hazards posed by these cuttings include hydrocarbons, salts, various polymers, lignin sulfonates, metal ions such as mercury, copper, arsenic, chromium, zinc, and lead, and impurities from barite. Indiscriminate discharge or improper handling can cause serious pollution to surrounding soil, vegetation, surface water, and groundwater. Heavy metals and their compounds, in particular, can accumulate in aquatic environments and organisms over long periods of time, posing potentially serious risks to human health and potentially impacting the quality of life for generations. Therefore, all drilling sites are required to be equipped with a system for handling drill cuttings that does not fall to the ground. During the drilling process, drill cuttings are first collected in an open tank under the well team's solids control equipment. Then, they are transported to the hopper of the drill cuttings processing system by an excavator or loader. There is a height difference of about 2-3 meters between the hopper and the feed inlet of the processing equipment. The drill cuttings need to be lifted and transported to the processing equipment for separation and treatment by a screw conveyor or concrete pump. The liquid phase separated by the processing equipment enters the liquid storage bin, and the separated solid residue is then loaded onto trucks by excavators or loaders and transported away. The equipment of the entire processing process is scattered, and transportation is time-consuming and labor-intensive. Summary of the Invention

[0003] The purpose of the utility model is to propose a wheeled lifting and feeding skid-mounted device for comprehensive recovery and treatment of drill cuttings. By providing a skid-mounted base on which the processing equipment can be centrally arranged, the skid-mounted base has wheeled lifting and feeding equipment at both ends. The skid-mounted base is towed to the drilling site by a truck and directly connected to the well team's mud equipment, so that the recovery and treatment of drill cuttings can be completed at the drilling site.

[0004] In order to achieve the above purpose, the solution of the utility model is:

[0005] A wheeled lifting and feeding skid-mounted device for comprehensive recovery and processing of drill cuttings comprises a skid-mounted base platform, wherein: a first wheeled lifting feeder and a second wheeled lifting feeder are respectively provided at both longitudinal ends of the skid-mounted base platform, the first wheeled lifting feeder and the second wheeled lifting feeder are respectively provided with a pipe screw conveyor for delivering the lifted materials, a liquid storage bin is longitudinally provided between the first wheeled lifting feeder and the second wheeled lifting feeder, the upper end plane of the liquid storage bin is used to place the drill cuttings processing equipment, a drill cuttings collecting bin and a solid slag collecting bin with open upper ends are respectively left between the first wheeled lifting feeder and the second wheeled lifting feeder and the liquid storage bin, A first screw conveyor and a second screw conveyor are separately provided. The upper feed port of the first screw conveyor is used to receive drill cuttings outputted from the drilling platform, and the horizontal output port of the first screw conveyor is connected to the drill cuttings collecting bin. The upper feed port of the second screw conveyor is used to receive solid slag outputted from the drill cuttings processing equipment, and the horizontal output port of the second screw conveyor is connected to the solid slag collecting bin. The pipe screw conveyor of the first wheeled lifting feeder is connected to the drill cuttings processing equipment to send the lifted drill cuttings into the drill cuttings processing equipment for processing, and the pipe screw conveyor of the second wheeled lifting feeder is connected to the slag box to send out the lifted solid slag. A liquid pump is provided on the liquid storage bin to send out the liquid phase in the liquid storage bin.

[0006] The solution is further as follows: the wheeled lifting feeder includes a vertically arranged wall panel and an inner gear ring, the inner gear ring is rotatably suspended on the wall panel, buckets are arranged at intervals around the inner gear ring, a drive motor is fixedly arranged on the wall panel, and a drive gear arranged on the driving motor shaft engages with the inner gear ring to drive the inner gear ring to rotate, the tube screw conveyor is perpendicular to the wall panel, and the inner side of the inner gear ring on the upper end side of the wall panel is connected and fixed to the wall panel, the bucket rotating with the inner gear ring scoops up the material at the bottom of the collection bin, and pours the material into the feed port of the tube screw conveyor when it rotates to the upper end side of the wall panel.

[0007] The solution is further as follows: the inner gear ring is hung on the wall panel through at least three gears meshing with the inner gear ring, and the three gears are rotatably fixed on the wall panel through a rotating shaft, and at least one of the gears is a driving gear driven to rotate by a driving motor shaft.

[0008] A further solution is that one or more drill cuttings processing equipment with different processes are placed on the upper surface of the liquid storage bin.

[0009] The solution is further as follows: the liquid storage tank is a closed tank body that receives the processing liquid of the drill cuttings processing equipment, corresponding to multiple drill cuttings processing equipment with different processes. There are multiple liquid storage tanks, and the multiple liquid storage tanks are separated by partitions and independently correspond to the drill cuttings processing equipment with different processes. Each liquid storage tank is equipped with a liquid pump.

[0010] Compared with the prior art, the advantages of the present invention are: by providing a skid-mounted base on which the processing equipment can be centrally arranged, the skid-mounted base has wheeled lifting and feeding equipment at both ends, which is towed to the drilling site by a truck and directly connected to the well team's mud equipment, completing the recovery and processing of drill cuttings on site.

[0011] The present invention optimizes the integration of an open tank, hopper, screw conveyor, collection bin, and liquid storage tank onto a single skid-mounted base. Wheeled lift feeders are integrated at each end of the skid-mounted base, significantly reducing the required floor space. Because the collection bin and liquid storage tank are integrated into the skid-mounted base, drill cuttings can be collected directly and transported to processing equipment via a wheeled lift feeder at one end, eliminating the need for excavators or loaders. The wheeled lift feeder uses a rotating wheel to lift the material, and then uses a short screw conveyor to transport the cuttings horizontally. The screw conveyor is only 1 / 5 to 1 / 6 the length of the original, significantly shortening the cuttings transportation distance and preserving the integrity of the cuttings particles to the greatest extent possible, ensuring separation efficiency for subsequent processing equipment. The liquid separated by the processing equipment enters the liquid storage tank, while the solid residue enters the collection bin. A wheeled lift feeder, mounted on the other end of the skid, directly lifts and transports the separated solid residue to the slag box, eliminating the need for loaders or excavators to transfer the material or load it onto trucks. This significantly improves on-site operation efficiency and reduces drilling costs.

[0012] In addition, a processing equipment installation platform is provided on the skid-mounted base, on which different processing equipment can be installed according to site needs. This can further improve the degree of equipment integration, avoid the equipment connection and disassembly process during use, and greatly facilitate the use of the drilling site.

[0013] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the utility model from a top view;

[0015] Figure 2 This is a side structural diagram of the utility model;

[0016] Figure 3 It is a schematic diagram of the rotary lifting structure of the wheeled lifting feeder of the utility model. DETAILED DESCRIPTION

[0017] A wheeled lifting and feeding skid mounted device for comprehensive recovery and processing of drill cuttings, such as Figure 1 、 Figure 2 and Figure 3As shown, it includes a skid-mounted base platform 1, wherein: a first wheeled lifting feeder 2a and a second wheeled lifting feeder 2b are respectively provided at both longitudinal ends of the skid-mounted base platform 1, the first wheeled lifting feeder 2a and the second wheeled lifting feeder 2b are respectively provided with pipe screw conveyors 201 and 202 for delivering the lifted materials, a liquid storage bin 3 is longitudinally provided between the first wheeled lifting feeder 2a and the second wheeled lifting feeder 2b, the upper end plane of the liquid storage bin 3 is used to place a drill cuttings processing device 4, a drill cuttings collecting bin 5 with an open top is left between the first wheeled lifting feeder 2a and the liquid storage bin 3, a solid slag collecting bin 6 with an open top is left between the second wheeled lifting feeder 2b and the liquid storage bin 3, and a first screw conveyor 7 and a second screw conveyor 8 are respectively provided on both lateral sides of the liquid storage bin 3. Screw conveyor 8, the upper end feed port of the first screw conveyor 7 is used to receive the drill cuttings output by the drilling platform, and is connected to the vibrating screen 9 of the drilling platform as shown in the figure. The horizontal output port of the first screw conveyor 7 is connected to the drill cuttings collection bin 5, and the upper end feed port of the second screw conveyor 8 is used to receive the solid slag output by the drill cuttings processing equipment 4. The horizontal output port of the second screw conveyor 8 is connected to the solid slag collection bin 6. The pipe screw conveyor 201 of the first wheeled lifting feeder 2a is connected to the drill cuttings processing equipment 4 to send the lifted drill cuttings into the drill cuttings processing equipment 4 for processing, and the pipe screw conveyor 202 of the second wheeled lifting feeder 2b is connected to the slag box 10 to send out the lifted solid slag. A liquid pump 301 is provided on the liquid storage bin 3 for sending the liquid phase in the liquid storage bin to other places.

[0018] Among them: the wheeled lifting feeders 2a and 2b include a vertically arranged wall panel 203 and an inner gear ring 204, the inner gear ring 204 is rotatably suspended on the wall panel 203, and buckets 205 are arranged at intervals around the inner gear ring 204. A drive motor is fixedly arranged on the wall panel 203, and a drive gear 206-1 set on the drive motor shaft 206 engages with the inner gear ring 204 to drive the inner gear ring 204 to rotate. The pipe screw conveyors 201 and 202 are perpendicular to the wall panel 203 and are fixedly connected to the wall panel 203 on the inner side of the inner gear ring 204 on the upper end side of the wall panel 203. The bucket 205 rotating with the inner gear ring 204 scoops up the material at the bottom of the collection bin and pours the material into the feed port of the pipe screw conveyors 201 and 202 when it rotates to the upper end side of the wall panel 203.

[0019] In the embodiment, the inner gear ring 204 is hung on the wall plate 203 by meshing with the inner gear ring 204 through at least three gears, and the three gears are rotatably fixed on the wall plate 203 through a rotating shaft, wherein at least one gear is a driving gear driven to rotate by a driving motor shaft.

[0020] One or more drill cuttings processing equipment 4 of different processes are placed on the upper surface of the liquid storage tank. The liquid storage tank is a closed tank body that receives the processing liquid of the drill cuttings processing equipment. It corresponds to multiple drill cuttings processing equipment of different processes. The liquid storage tanks are separated by partitions and independently correspond to the drill cuttings processing equipment of different processes. Each liquid storage tank is equipped with a liquid pump.

[0021] The above embodiment provides a skid-mounted base on which processing equipment can be centrally installed. Wheeled lifting and feeding equipment are respectively provided at both ends of the skid-mounted base. The skid-mounted base is towed to the drilling site by a truck and directly connected to the well crew's mud equipment, thereby completing the recovery and processing of drill cuttings at the drilling site.

Claims

1. A wheeled lifting and feeding skid-mounted device for comprehensive recovery and processing of drill cuttings, comprising a skid-mounted base platform, characterized in that: A first wheeled lifting feeder and a second wheeled lifting feeder are respectively provided at both longitudinal ends of the skid-mounted base platform. The first wheeled lifting feeder and the second wheeled lifting feeder are respectively provided with a pipe screw conveyor for delivering the lifted materials. A liquid storage bin is longitudinally provided between the first wheeled lifting feeder and the second wheeled lifting feeder. The upper end plane of the liquid storage bin is used to place the drill cuttings processing equipment. A drill cuttings collection bin and a solid slag collection bin with open upper ends are respectively left between the first wheeled lifting feeder and the second wheeled lifting feeder and the liquid storage bin. A first screw conveyor and a second screw conveyor are respectively provided on both lateral sides of the liquid storage bin. The upper end feed port of the first screw conveyor is used to receive the drill cuttings output by the drilling platform, the horizontal output port of the first screw conveyor is connected to the drill cuttings collecting bin, the upper end feed port of the second screw conveyor is used to receive the solid slag output by the drill cuttings processing equipment, the horizontal output port of the second screw conveyor is connected to the solid slag collecting bin, the pipe screw conveyor of the first wheeled lifting feeder is connected to the drill cuttings processing equipment to send the lifted drill cuttings into the drill cuttings processing equipment for processing, the pipe screw conveyor of the second wheeled lifting feeder is connected to the slag box to send out the lifted solid slag, and a liquid pump is provided on the liquid storage bin to send out the liquid phase in the liquid storage bin.

2. The feeding skid-mounted device according to claim 1, characterized in that: The wheeled lifting feeder includes a vertically arranged wall panel and an inner gear ring. The inner gear ring is rotatably suspended on the wall panel, and buckets are arranged at intervals around the inner gear ring. A driving motor is fixedly arranged on the wall panel. The driving gear set on the driving motor shaft engages with the inner gear ring to drive the inner gear ring to rotate. The tube screw conveyor is perpendicular to the wall panel and is fixedly connected to the wall panel on the inner side of the inner gear ring on the upper end side of the wall panel. The bucket rotating with the inner gear ring scoops up the material at the bottom of the collection bin and pours the material into the feed port of the tube screw conveyor when it rotates to the upper end side of the wall panel.

3. The feeding skid-mounted device according to claim 2, characterized in that: The inner gear ring is hung on the wall plate through at least three gears meshing with the inner gear ring. The three gears are rotatably fixed on the wall plate through a rotating shaft, and at least one of the gears is a driving gear driven to rotate by a driving motor shaft.

4. The feeding skid-mounted device according to claim 1, characterized in that: One or more drill cuttings processing equipments with different processes are placed on the upper surface of the liquid storage bin.

5. The feeding skid-mounted device according to claim 4, characterized in that: The liquid storage tank is a closed tank body that receives the processing liquid of the drill cuttings processing equipment, corresponding to multiple drill cuttings processing equipment with different processes. There are multiple liquid storage tanks, which are separated by partitions and independently correspond to drill cuttings processing equipment with different processes. Each liquid storage tank is equipped with a liquid pump.

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