A rapid batcher and method of use thereof

Abstract

The present application relates to the field of oil and gas drilling engineering technology, and more particularly to a rapid slurry preparation device and a method of use thereof, the device comprising a slurry preparation tank and a separate slurry preparation sled; the separate slurry preparation sled comprising a first base, the first base being provided with a jet funnel, a sand pump and a preparation pipeline, the jet funnel and the sand pump being connected to the preparation pipeline; and the preparation pipeline being provided with an interface unit and a valve unit for implementing preparation control; the slurry preparation tank being provided with two material ports, and the separate slurry preparation sled being detachably connected to the two material ports of the slurry preparation tank via the preparation pipeline. The technical solution can support the separation of the processes of preparing drilling mud and preparing plugging mud in actual engineering, ensure that the effective volume of the circulating tank is not occupied when plugging operations are performed in emergency situations, avoid the situation of large loss of drilling fluid, and provide effective protection for downhole safety.

Description

Technical Field

[0001] This invention relates to the field of oil and gas drilling engineering technology, and in particular to a rapid slurry mixing device and its usage method. Background Technology

[0002] In some parts of my country, the geological sequence is complex, with multiple pressure systems existing from top to bottom. All major development blocks have geological characteristics such as well-developed formation porosity, fractures, and faults, as well as the coexistence of high and low pressure systems. This results in an extremely high frequency of well leakage, causing huge losses in time and material costs. At the same time, the coexistence of leakage and blowout, as well as the extremely high risk of leakage and blowout conversion, further increases the difficulty of handling complex well leakage issues.

[0003] Based on this, a leak-sealing operation has been carried out to address the above situation. In this operation, a circulating tank is typically used to prepare the leak-sealing slurry. Chinese patent document CN114412397A discloses a mud circulation system and method for workover rigs, comprising six circulation tanks, a weight pump, a mud pump, an output pipeline network, and a suction pipeline network. The six circulation tanks are designated as tanks one through six. Tank one includes a vibrating screen, a sedimentation chamber, and a degassing chamber. Tank two is equipped with a gravity settling chamber and a water supply chamber. Tanks three, five, and six each have a water supply chamber. Tank four is equipped with a grouting chamber and a water supply chamber. The mud pump is connected to the water supply chambers of each circulation tank via external pipelines. A grouting pump is installed in the grouting chamber. A gravity settling pool is installed in the gravity settling chamber. A suction pipeline network is installed between the circulation tanks. An output pipeline network is installed at the bottom of the circulation tanks. Both the suction and output pipeline networks are equipped with valves. The weight pump is connected to each circulation tank via the output and suction pipeline networks. This invention solves the problems of existing mud circulation systems, such as insufficient compactness, high difficulty in relocation and installation, large footprint, and inconvenient control. In existing technologies, the method for preparing the plugging fluid involves using a mud circulation system structure similar to the one described above. A No. 6 circulation tank is used as the drilling fluid preparation tank. Drilling fluid or water is drawn from the circulation tank using a weighted pump, and plugging material is added using a jetting funnel to prepare the plugging drilling fluid. After preparation, it is injected into the well using a mud pump to achieve the plugging function. This method has the following problems:

[0004] 1. Using a circulating tank for mud preparation occupies the effective volume of drilling mud on the surface. In the event of a large amount of drilling fluid leakage from the circulating tank, downhole safety cannot be guaranteed.

[0005] 2. Due to the limited overall capacity of the circulating tank and the fact that the processes of the two heavy-duty pumps cannot be separated independently, drilling mud and plugging mud cannot be prepared simultaneously during construction and can only be prepared alternately, resulting in a long preparation time.

[0006] 3. After the construction work is completed, due to the design of the circulating tank, there is usually a lot of residual sealing slurry. This results in two problems: first, it wastes sealing materials; second, it makes cleaning the tank more difficult and time-consuming, and increases the cost of cleaning treatment. Summary of the Invention

[0007] This invention addresses the shortcomings of existing technologies by proposing a rapid grout mixing device and its usage method, which can achieve the goals of safe, rapid, and cost-effective leak sealing operations.

[0008] This invention is achieved by adopting the following technical solution:

[0009] A rapid slurry mixing device includes a slurry mixing tank and an independent slurry mixing skid. The independent slurry mixing skid includes a first base, on which a jet funnel, a sand pump, and a mixing pipeline are installed. The jet funnel and the sand pump are connected to the mixing pipeline. The mixing pipeline is provided with interface units and valve units for implementing mixing control. The interface units include interface I, interface II, interface III, and interface IV. The valve units include valve I, valve II, valve III, valve IV, valve V, and valve VI. The feed end of the jet funnel is connected to interface II through valve V, and the discharge end of the jet funnel is connected to interface IV through valve VI. The feed end of the sand pump is connected to interface I through valve II and to interface III through valve IV. The discharge end of the sand pump is connected to interface I through valve I and to the feed end of the jet funnel through valve III. The slurry mixing tank is provided with two feed ports, and interface III and interface IV of the mixing pipeline are detachably connected to the two feed ports of the slurry mixing tank.

[0010] Preferably, the mixing tank includes a second base and a tank body installed on the second base; an opening is opened at the center of the top of the tank body, and a sealing cover is provided at the opening; two agitators are symmetrically installed on the top of the tank body, and the two agitators are respectively located on the left and right sides of the opening.

[0011] Preferably, the tank body is equipped with a control distribution box for controlling the operation of the slurry mixing tank and the independent slurry mixing skid, and the control distribution box is provided with an electrical interface for detachable connection to the independent slurry mixing skid.

[0012] Preferably, the top of the tank is provided with at least one tank surface inlet, and the side of the tank is provided with at least one ladder.

[0013] Preferably, the top of the tank is provided with a guardrail.

[0014] Preferably, a lighting device is detachably installed on the top of the tank.

[0015] Preferably, the inner wall of the tank is provided with a hydrophobic coating.

[0016] Preferably, the interior of the tank is provided with a material-gathering inclined surface, and a settling trough is provided at the bottom of the material-gathering inclined surface.

[0017] Preferably, valves I, II, III, IV, V and VI are all butterfly valves.

[0018] Based on the above-mentioned rapid slurry mixing device, this technical solution provides a method for using the rapid slurry mixing device, including equipment transportation, equipment installation and material mixing.

[0019] The equipment transportation is as follows: Open the sealing cover on the top of the tank, put the independent slurry mixing skid into the tank from the open end, close the sealing cover, and then transport the slurry mixing tank together with the independent slurry mixing skid to the construction site.

[0020] The equipment installation includes the following steps:

[0021] Connecting the independent grout mixing skid: After the grout mixing tank is in place, remove the independent grout mixing skid from the tank and place it on one side of the grout mixing tank; using a hose and union, connect interface III and interface IV of the independent grout mixing skid to the two material inlets of the grout mixing tank respectively; connect the sand pump in the independent grout mixing skid to the electrical interface in the control distribution box;

[0022] Connecting external equipment: Using a hose and union, connect the external circulation system to the independent slurry mixing skid. Specifically, connect the circulation tank and mud pump water supply line of the external circulation system to interface I of the independent slurry mixing skid, and connect the weighted pump connected to the storage tank in the external circulation system to interface II of the independent slurry mixing skid.

[0023] The material preparation process involves setting the material preparation mode using an independent grout preparation skid valve unit and controlling the material preparation through a control distribution box. The material preparation mode includes emergency material preparation and non-emergency material preparation. When the sealing grout is not urgently needed, non-emergency material preparation is selected, and when the sealing grout is urgently needed, emergency material preparation is selected.

[0024] Preferably, the non-emergency ingredients include the following steps:

[0025] S11, close valves I, IV and V, and open valves II, III and V and valve VI;

[0026] S12, by controlling the distribution box to start the slurry tank and the independent slurry skid, the sand pump of the independent slurry skid directly draws the drilling fluid in the circulating tank through interface I, and then pumps the drilling fluid into the jet funnel through the mixing pipeline;

[0027] S13, the plugging material is manually added to the jetting funnel. The drilling fluid and the plugging material are mixed using the jetting funnel. The mixture of drilling fluid and plugging material is then pumped from interface IV into the mixing tank through the mixing pipeline.

[0028] S14, The mixture of drilling fluid and plugging material is stirred by the agitator in the slurry mixing tank to prepare the plugging slurry;

[0029] S15, After the mixing work is completed in the mixing tank, the mixing tank and the independent mixing skid are shut off by controlling the distribution box;

[0030] S16, close valves II and III, open valves I and IV;

[0031] S17, by controlling the distribution box to start the independent slurry mixing skid, the sand pump in the independent slurry mixing skid is used to extract the plugging slurry from interface Ⅲ to the slurry mixing tank, and the extracted plugging slurry is transported from interface Ⅰ to the mud pump water supply pipeline of the external circulation system through the mixing pipeline, so that the plugging slurry can be directly put into the well.

[0032] Preferably, the emergency ingredient preparation includes the following steps:

[0033] S21, close valve III, open valves V and VI;

[0034] S22, turn on the weight pump connected to the storage tank in the circulation system, use the weight pump to draw drilling fluid from the storage tank, and pump the drilling fluid from interface II of the feed pipeline into the jet funnel;

[0035] S23, the plugging material is manually added to the jetting funnel. The drilling fluid and the plugging material are mixed using the jetting funnel. The mixture of drilling fluid and plugging material is then pumped from interface IV into the mixing tank through the mixing pipeline.

[0036] S24, the mixing tank is started by controlling the distribution box, and the agitator in the mixing tank is used to stir the mixture of drilling fluid and plugging material to prepare plugging slurry;

[0037] S25, close valve II, open valve I and valve IV;

[0038] S26, by controlling the distribution box to start the independent slurry mixing skid, the sand pump in the independent slurry mixing skid is used to extract the plugging slurry from interface Ⅲ to the slurry mixing tank, and the extracted plugging slurry is transported from interface Ⅰ to the mud pump water supply pipeline of the external circulation system through the mixing pipeline, so that the plugging slurry can be directly put into the well.

[0039] The beneficial technical effects of this invention are as follows:

[0040] 1) This technical solution provides a rapid mud preparation device that allows the preparation of drilling mud and plugging mud to be carried out independently in actual engineering projects. This ensures that the effective volume of the circulation tank is not occupied when plugging operations are carried out in emergency situations, thus avoiding a large loss of drilling fluid and providing effective protection for downhole safety. It also supports the simultaneous execution of the two processes. Compared with alternating mud preparation, it effectively shortens the construction operation time and reduces material losses caused by drilling fluid loss.

[0041] 2) This technical solution provides a rapid pulp mixing device with a modular design, increasing the effective pulp mixing volume. During relocation and transportation, the individual pulp mixing skids can be placed inside the tank from the open end, saving transportation trips while meeting road transport requirements and reducing the time required for obtaining an overweight / oversized vehicle permit.

[0042] 3) This technical solution provides a method for using a rapid slurry mixing device. The device is installed using a flexible hose and union structure (including the connection between the independent slurry mixing skid and the slurry mixing tank, and the connection between the independent slurry mixing skid and the external circulation system). The installation is simple and quick, and the device can be installed and put into use in a very short time.

[0043] 4) The interior of the tank adopts a structure design with a material-accumulating inclined surface and a settling trough. At the same time, it uses nano-level hydrophobic coating for anti-corrosion spraying. Under the premise of safety and environmental protection, it reduces the sediment at the bottom of the tank, further reduces the workload of cleaning the tank, and thus saves on the cost of sealing materials and waste liquid treatment. Attached Figure Description

[0044] Figure 1 This is a schematic diagram of the overall structure of the rapid slurry mixing device;

[0045] Figure 2 This is a top view of the tank's structure.

[0046] Figure 3 This is a schematic diagram of the internal structure of the tank;

[0047] Figure 4 A simplified structural diagram of an independent slurry skid;

[0048] Figure 5 A top view of the independent slurry skid structure;

[0049] Figure 6 This is a left view of the mixing tank;

[0050] In the picture:

[0051] 1. Slurry mixing tank; 1.1. Second base; 1.2. Tank body; 1.3. Sealing cover; 1.4. Agitator; 1.5. Aggregating slope; 1.6. Settling trough; 1.7. Tank surface inlet; 1.8. Material outlet; 2. Independent slurry mixing skid; 2.1. First base; 2.2. Jetting funnel; 2.3. Sand pump; 2.4. Mixing pipeline; 2.41. Interface I; 2.42. Interface II; 2.43. Interface III; 2.44. Interface IV; 2.5. Valve unit; 2.51. Valve I; 2.52. Valve II; 2.53. Valve III; 2.54. Valve IV; 2.55. Valve V; 2.56. Valve VI; 3. Ladder; 4. Guardrail; 5. Control distribution box; 6. Lighting device; 7. Hoses. Detailed Implementation

[0052] To make the purpose, technical solution and advantages of the invention clearer, the technical solution of the invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of the invention, but not all embodiments.

[0053] Therefore, the following detailed description of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0054] Example 1

[0055] This embodiment discloses a rapid pulp mixing device and its usage method, as a preferred implementation of the present invention, such as... Figure 1 As shown, the rapid slurry mixing device includes a slurry mixing tank and an independent slurry mixing skid. The independent slurry mixing skid includes a first base, on which a jetting funnel, a sand pump, and a mixing pipeline are installed. The jetting funnel and the sand pump are connected to the mixing pipeline. The first base provides installation and adjustment for the other structures of the independent slurry mixing skid to ensure the integration of the independent slurry mixing skid, facilitating its movement, transportation, installation, and use. The batching pipeline is equipped with interface units and valve units for batching control. The interface units include interface I, interface II, interface III, and interface IV. The valve units include valve I, valve II, valve III, valve IV, valve V, and valve VI. The feed end of the jet funnel is connected to interface II via valve V, and the discharge end of the jet funnel is connected to interface IV via valve VI. The feed end of the sand pump is connected to interface I via valve II and to interface III via valve IV. The discharge end of the sand pump is connected to interface I via valve I and to the feed end of the jet funnel via valve III. The slurry mixing tank is equipped with two feed ports, and interface III and interface IV of the batching pipeline are detachably connected to the two feed ports of the slurry mixing tank.

[0056] In practical applications, the rapid slurry mixing device can be configured as follows: the external dimensions of the slurry mixing tank are 9600mm (length) × 2500mm (width) × 2500mm (height), with a theoretical capacity of 32.21m³; the independent slurry mixing skid has external dimensions of 3000mm (length) × 1800mm (width) × 1400mm (height) and a sand pump of 75KW.

[0057] Based on the structure of the aforementioned rapid slurry mixing device, its usage method is as follows:

[0058] Using hoses and unions, valves III and IV of the independent slurry mixing skid are connected to the two inlets of the slurry mixing tank, respectively. Then, using hoses and unions, interfaces I and II of the independent slurry mixing skid are connected to the external circulation system. Specifically, interface II connects to the external circulation system's storage tank via a weighted pump, and also connects to the external circulation system's circulation tank and mud pump water supply line. In this way, by setting the valves in the valve unit to open and / or close, drilling fluid is supplied via the weighted pump and the storage tank (which is independent of the six circulation backup tanks and stores drilling fluid; in emergencies, drilling fluid can be supplied from the storage tank). The drilling fluid flows through a jetting funnel, where plugging material is manually added. The jetting funnel initially mixes the drilling fluid and plugging material, and then the mixing pipeline transports the drilling fluid and plugging material to the slurry mixing tank for further mixing to obtain the plugging slurry. Furthermore, the sand pump, in conjunction with the batching pipeline, extracts the plugging slurry from the mixing tank and transports it to the water supply pipeline of the mud pump for further delivery downhole. In summary, the rapid slurry mixing device based on this technical solution allows for the separation of drilling mud and plugging mud preparation processes in actual engineering projects, and supports the simultaneous execution of both processes. This effectively shortens the mixing time, saves downtime during drilling fluid system conversion, and avoids situations where the effective volume of drilling mud on the surface is occupied or where large amounts of drilling fluid are lost in emergency situations, thus providing effective protection for downhole safety.

[0059] Furthermore, valve III is connected to a DN200 inlet, and valve IV is connected to a DN150 inlet. In emergencies, drilling fluid and plugging materials can be fed in and plugging slurry can be extracted simultaneously. The material at the bottom of the tank has a relatively higher degree of mixing. Based on this, if... Figure 1 As shown, the feed port of DN150 is above that of DN200.

[0060] Example 2

[0061] This embodiment discloses a rapid slurry mixing device. As a preferred embodiment of the present invention, it includes a slurry mixing tank and an independent slurry mixing skid. The independent slurry mixing skid includes a first base, on which a jet funnel, a sand pump, and a mixing pipeline are installed. The jet funnel and the sand pump are connected to the mixing pipeline. The mixing pipeline is provided with interface units and valve units for implementing mixing control. The interface units include interface I, interface II, interface III, and interface IV. The valve units include valve I, valve II, valve III, valve IV, valve V, and valve VI. The feed end of the jet funnel is connected to interface II through valve V, and the discharge end of the jet funnel is connected to interface IV through valve VI. The feed end of the sand pump is connected to interface I through valve II and to interface III through valve IV. The discharge end of the sand pump is connected to interface I through valve I and to the feed end of the jet funnel through valve III. The slurry mixing tank is provided with two feed ports, and interface III and interface IV of the mixing pipeline are detachably connected to the two feed ports of the slurry mixing tank.

[0062] Furthermore, the mixing tank includes a second base and a tank body installed on the second base; an opening is opened in the center of the top of the tank body, and a sealing cover is provided at the opening position; two agitators are symmetrically installed on the top of the tank body, and the two agitators are respectively located on the left and right sides of the opening.

[0063] In practical applications, the rapid slurry mixing device can be configured as follows: the slurry mixing tank has external dimensions of 9600mm (length) × 2500mm (width) × 2500mm (height) and a theoretical capacity of 32.21m³; the tank body is made of Q235 carbon steel, equipped with an 18.5KW agitator, and the opening is a square with a side length of 3200mm; the independent slurry mixing skid has external dimensions of 3000mm (length) × 1800mm (width) × 1400mm (height) and a 75KW sand pump.

[0064] Based on the above structure, the rapid slurry mixing device is designed as a set, which increases the effective slurry mixing volume. During relocation and transportation, the independent slurry mixing skid can be placed inside the tank from the open end, saving transportation trips, meeting road transportation requirements, and saving time required to obtain an overweight permit.

[0065] Example 3

[0066] This embodiment discloses a rapid slurry mixing device. As a preferred embodiment of the present invention, it includes a slurry mixing tank and an independent slurry mixing skid. The independent slurry mixing skid includes a first base, on which a jet funnel, a sand pump, and a mixing pipeline are installed. The jet funnel and the sand pump are connected to the mixing pipeline. The mixing pipeline is provided with interface units and valve units for implementing mixing control. The interface units include interface I, interface II, interface III, and interface IV. The valve units include valve I, valve II, valve III, valve IV, valve V, and valve VI. The feed end of the jet funnel is connected to interface II through valve V, and the discharge end of the jet funnel is connected to interface IV through valve VI. The feed end of the sand pump is connected to interface I through valve II and to interface III through valve IV. The discharge end of the sand pump is connected to interface I through valve I and to the feed end of the jet funnel through valve III. The slurry mixing tank is provided with two feed ports, and interface III and interface IV of the mixing pipeline are detachably connected to the two feed ports of the slurry mixing tank.

[0067] Furthermore, the mixing tank includes a second base and a tank body installed on the second base; an opening is opened in the center of the top of the tank body, and a sealing cover is provided at the opening position; two agitators are symmetrically installed on the top of the tank body, and the two agitators are respectively located on the left and right sides of the opening.

[0068] Furthermore, a control distribution box is installed on the tank body to control the operation of the mixing tank and the independent mixing skid, realizing centralized control of the mixing tank and the independent mixing skid, making it more convenient to use. The control distribution box is equipped with an electrical interface for detachable connection to the independent mixing skid, which facilitates the connection, power-on, and disconnection of the independent mixing skid.

[0069] Furthermore, the tank has at least one surface inlet at the top and at least one ladder on the side. Workers can access the top of the tank via the ladder, enter through the surface inlet, and clean the interior. Preferably, as follows... Figure 2 As shown, a tank surface inlet is provided at each of the two ends of the top of the tank, allowing access to the tank for cleaning work from both inlets. This avoids large-scale movement of workers inside the tank and ensures worker safety. Correspondingly, a ladder is provided at each end of the tank to prevent large-scale movement of workers on the top of the tank and ensure worker safety.

[0070] Furthermore, a guardrail is installed on the top of the tank to prevent workers from accidentally falling from the top of the tank.

[0071] Example 4

[0072] This embodiment discloses a rapid pulping device. As a preferred embodiment of the present invention, namely embodiment 3, a lighting device is detachably installed on the top of the tank. Specifically, the lighting device includes a support column and a lighting lamp body. The lighting lamp body is installed on the top of the support column, and the bottom of the support column is connected to the tank. To facilitate the transportation of the rapid pulping device, it is necessary to limit the overall height of the rapid pulping device. Based on this, the support column can be detachably connected to the tank by screws, which facilitates disassembly; alternatively, the support column can be connected to the tank by hinges. In this way, when the height of the rapid pulping device needs to be limited, the entire lighting device can be tilted on top of the tank; conversely, the lighting device can be upright, and the support column can be fixed by screws or other means.

[0073] Example 5

[0074] This embodiment discloses a rapid slurry mixing device. As a preferred embodiment of the present invention, it includes a slurry mixing tank and an independent slurry mixing skid. The independent slurry mixing skid includes a first base, on which a jet funnel, a sand pump, and a mixing pipeline are installed. The jet funnel and the sand pump are connected to the mixing pipeline. The mixing pipeline is provided with interface units and valve units for implementing mixing control. The interface units include interface I, interface II, interface III, and interface IV. The valve units include valve I, valve II, valve III, valve IV, valve V, and valve VI. The feed end of the jet funnel is connected to interface II through valve V, and the discharge end of the jet funnel is connected to interface IV through valve VI. The feed end of the sand pump is connected to interface I through valve II and to interface III through valve IV. The discharge end of the sand pump is connected to interface I through valve I and to the feed end of the jet funnel through valve III. The slurry mixing tank is provided with two feed ports, and interface III and interface IV of the mixing pipeline are detachably connected to the two feed ports of the slurry mixing tank.

[0075] Furthermore, the mixing tank includes a second base and a tank body installed on the second base; an opening is opened in the center of the top of the tank body, and a sealing cover is provided at the opening position; two agitators are symmetrically installed on the top of the tank body, and the two agitators are respectively located on the left and right sides of the opening.

[0076] Furthermore, the inner wall of the tank is coated with a hydrophobic coating, specifically using nano-level hydrophobic paint for anti-corrosion spraying, which can reduce drilling fluid residue inside the tank.

[0077] Furthermore, the tank body is equipped with a material-gathering inclined surface inside, and a settling trough is opened at the bottom of the material-gathering inclined surface to facilitate the maximum discharge of material from the tank.

[0078] Furthermore, valves I, II, III, IV, V, and VI are all butterfly valves, which facilitate manual operation.

[0079] Example 6

[0080] This embodiment discloses a method of using a rapid pulp mixing device. As a preferred embodiment of the present invention, it is implemented in a non-emergency situation, including equipment transportation, equipment installation and pulp mixing.

[0081] Equipment transportation: Open the sealing cover on the top of the tank, put the independent slurry mixing skid into the tank from the open end, close the sealing cover, and then transport the slurry mixing tank together with the independent slurry mixing skid to the construction site;

[0082] The equipment installation includes the following steps:

[0083] Connecting the independent grout mixing skid: After the grout mixing tank is in place, remove the independent grout mixing skid from the tank and place it on one side of the grout mixing tank; using a hose and union, connect interface III and interface IV of the independent grout mixing skid to the two material inlets of the grout mixing tank respectively; connect the sand pump in the independent grout mixing skid to the electrical interface in the control distribution box;

[0084] Connecting external equipment: Using a hose and union, connect the external circulation system to the independent slurry mixing skid. Specifically, connect the circulation tank and mud pump water supply line of the external circulation system to interface I of the independent slurry mixing skid, and connect the weighted pump connected to the storage tank in the external circulation system to interface II of the independent slurry mixing skid.

[0085] Implementation of material preparation: When drilling mud preparation is not required in the external circulation system and the plugging slurry is not urgently needed, non-emergency material preparation shall be carried out, specifically including the following steps:

[0086] S11, close valves I, IV and V, and open valves II, III and V and valve VI;

[0087] S12, by controlling the distribution box to start the slurry tank and the independent slurry skid, the sand pump of the independent slurry skid directly draws the drilling fluid in the circulating tank through interface I, and then pumps the drilling fluid into the jet funnel through the mixing pipeline;

[0088] S13, the plugging material is manually added to the jetting funnel. The drilling fluid and the plugging material are mixed using the jetting funnel. The mixture of drilling fluid and plugging material is then pumped from interface IV into the mixing tank through the mixing pipeline.

[0089] S14, The mixture of drilling fluid and plugging material is stirred by the agitator in the slurry mixing tank to prepare the plugging slurry;

[0090] S15, After the mixing work is completed in the mixing tank, the mixing tank and the independent mixing skid are shut off by controlling the distribution box;

[0091] S16, close valves II and III, open valves I and IV;

[0092] S17, by controlling the distribution box to start the independent slurry mixing skid, the sand pump in the independent slurry mixing skid is used to extract the plugging slurry from interface Ⅲ to the slurry mixing tank, and the extracted plugging slurry is transported from interface Ⅰ to the mud pump water supply pipeline of the external circulation system through the mixing pipeline, so that the plugging slurry can be directly put into the well.

[0093] Example 8

[0094] This embodiment discloses a method of using a rapid slurry mixing device. As a preferred embodiment of the present invention, it is implemented in an emergency situation, including equipment transportation, equipment installation and material mixing.

[0095] Equipment transportation: Open the sealing cover on the top of the tank, put the independent slurry mixing skid into the tank from the open end, close the sealing cover, and then transport the slurry mixing tank together with the independent slurry mixing skid to the construction site;

[0096] The equipment installation includes the following steps:

[0097] Connecting the independent grout mixing skid: After the grout mixing tank is in place, remove the independent grout mixing skid from the tank and place it on one side of the grout mixing tank; using a hose and union, connect interface III and interface IV of the independent grout mixing skid to the two material inlets of the grout mixing tank respectively; connect the sand pump in the independent grout mixing skid to the electrical interface in the control distribution box;

[0098] Connecting external equipment: Using a hose and union, connect the external circulation system to the independent slurry mixing skid. Specifically, connect the circulation tank and mud pump water supply line of the external circulation system to interface I of the independent slurry mixing skid, and connect the weighted pump connected to the storage tank in the external circulation system to interface II of the independent slurry mixing skid.

[0099] Emergency mixing: When drilling mud needs to be prepared for the external circulation system and plugging slurry is urgently needed, emergency mixing shall be carried out, specifically including the following steps:

[0100] S21, close valve III, open valves V and VI;

[0101] S22, turn on the weight pump connected to the storage tank in the circulation system, use the weight pump to draw drilling fluid from the storage tank, and pump the drilling fluid from interface II of the feed pipeline into the jet funnel;

[0102] S23, the plugging material is manually added to the jetting funnel. The drilling fluid and the plugging material are mixed using the jetting funnel. The mixture of drilling fluid and plugging material is then pumped from interface IV into the mixing tank through the mixing pipeline.

[0103] S24, the mixing tank is started by controlling the distribution box, and the agitator in the mixing tank is used to stir the mixture of drilling fluid and plugging material to prepare plugging slurry;

[0104] S25, without waiting for the mixing tank to complete the mixing process (i.e., fully mixing the drilling fluid and the plugging material to complete the plugging slurry preparation), close valve II and open valves I and IV;

[0105] S26, by controlling the distribution box to start the independent slurry mixing skid, the sand pump in the independent slurry mixing skid is used to extract the plugging slurry from interface Ⅲ to the slurry mixing tank, and the extracted plugging slurry is transported from interface Ⅰ to the mud pump water supply pipeline of the external circulation system through the mixing pipeline, so that the plugging slurry can be directly put into the well.

[0106] Example 9

[0107] This embodiment discloses a method of using a rapid slurry mixing device. As a preferred embodiment of the present invention, it is implemented in an emergency situation, including equipment transportation, equipment installation and material mixing.

[0108] Equipment transportation: Open the sealing cover on the top of the tank, put the independent slurry mixing skid into the tank from the open end, close the sealing cover, and then transport the slurry mixing tank together with the independent slurry mixing skid to the construction site;

[0109] The equipment installation includes the following steps:

[0110] Connecting the independent grout mixing skid: After the grout mixing tank is in place, remove the independent grout mixing skid from the tank and place it on one side of the grout mixing tank; using a hose and union, connect interface III and interface IV of the independent grout mixing skid to the two material inlets of the grout mixing tank respectively; connect the sand pump in the independent grout mixing skid to the electrical interface in the control distribution box;

[0111] Connecting external equipment: Using a hose and union, connect the external circulation system to the independent slurry mixing skid. Specifically, connect the circulation tank and mud pump water supply line of the external circulation system to interface I of the independent slurry mixing skid, and connect the weighted pump connected to the storage tank in the external circulation system to interface II of the independent slurry mixing skid.

[0112] Emergency mixing: When drilling mud needs to be prepared for the external circulation system, and the plugging slurry is not urgently needed, emergency mixing shall be carried out, specifically including the following steps:

[0113] S21, close valve III, open valves V and VI;

[0114] S22, turn on the weight pump connected to the storage tank in the circulation system, use the weight pump to draw drilling fluid from the storage tank, and pump the drilling fluid from interface II of the feed pipeline into the jet funnel;

[0115] S23, the plugging material is manually added to the jetting funnel. The drilling fluid and the plugging material are mixed using the jetting funnel. The mixture of drilling fluid and plugging material is then pumped from interface IV into the mixing tank through the mixing pipeline.

[0116] S24, the mixing tank is started by controlling the distribution box, and the agitator in the mixing tank is used to stir the mixture of drilling fluid and plugging material to prepare plugging slurry;

[0117] S25. After the mixing tank has finished mixing, close valve II and open valves I and IV.

[0118] S26, by controlling the distribution box to start the independent slurry mixing skid, the sand pump in the independent slurry mixing skid is used to extract the plugging slurry from interface Ⅲ to the slurry mixing tank, and the extracted plugging slurry is transported from interface Ⅰ to the mud pump water supply pipeline of the external circulation system through the mixing pipeline, so that the plugging slurry can be directly put into the well.

[0119] This technical solution enables the sealing grout to be prepared and used immediately, reducing the interval between two sealing grout preparations by at least 3 hours.

[0120] Example 10

[0121] This embodiment discloses a method of using a rapid slurry mixing device. As a preferred embodiment of the present invention, it is implemented in an emergency situation, including equipment transportation, equipment installation and material mixing.

[0122] Equipment transportation: Open the sealing cover on the top of the tank, put the independent slurry mixing skid into the tank from the open end, close the sealing cover, and then transport the slurry mixing tank together with the independent slurry mixing skid to the construction site;

[0123] The equipment installation includes the following steps:

[0124] Connecting the independent grout mixing skid: After the grout mixing tank is in place, remove the independent grout mixing skid from the tank and place it on one side of the grout mixing tank; using a hose and union, connect interface III and interface IV of the independent grout mixing skid to the two material inlets of the grout mixing tank respectively; connect the sand pump in the independent grout mixing skid to the electrical interface in the control distribution box;

[0125] Connecting external equipment: Using a hose and union, connect the external circulation system to the independent slurry mixing skid. Specifically, connect the circulation tank and mud pump water supply line of the external circulation system to interface I of the independent slurry mixing skid, and connect the weighted pump connected to the storage tank in the external circulation system to interface II of the independent slurry mixing skid.

[0126] Emergency mixing: When drilling mud preparation is not required in the external circulation system and plugging slurry is urgently needed, emergency mixing shall be carried out, specifically including the following steps:

[0127] S21, close valve III, open valves V and VI;

[0128] S22, turn on the weight pump connected to the storage tank in the circulation system, use the weight pump to draw drilling fluid from the storage tank, and pump the drilling fluid from interface II of the feed pipeline into the jet funnel;

[0129] S23, the plugging material is manually added to the jetting funnel. The drilling fluid and the plugging material are mixed using the jetting funnel. The mixture of drilling fluid and plugging material is then pumped from interface IV into the mixing tank through the mixing pipeline.

[0130] S24, the mixing tank is started by controlling the distribution box, and the agitator in the mixing tank is used to stir the mixture of drilling fluid and plugging material to prepare plugging slurry;

[0131] S25, without waiting for the mixing tank to finish mixing, close valve II and open valves I and IV;

[0132] S26, by controlling the distribution box to start the independent slurry mixing skid, the sand pump in the independent slurry mixing skid is used to extract the plugging slurry from interface Ⅲ to the slurry mixing tank, and the extracted plugging slurry is transported from interface Ⅰ to the mud pump water supply pipeline of the external circulation system through the mixing pipeline, so that the plugging slurry can be directly put into the well.

[0133] Furthermore, when there is no need for drilling mud preparation in the external circulation system, drilling fluid can be stored in the storage tank through the circulation tank.

Claims

1. A rapid pulp mixing device, characterized in that: Includes a mixing tank and a separate mixing skid; The independent slurry mixing skid includes a first base, on which a jetting funnel, a sand pump, and a mixing pipeline are installed. The jetting funnel and the sand pump are connected to the mixing pipeline. The mixing pipeline is equipped with interface units and valve units for implementing mixing control. The interface units include interface I, interface II, interface III, and interface IV. The valve units include valve I, valve II, valve III, valve IV, valve V, and valve VI. The feed end of the jetting funnel is connected to interface II through valve V, and the discharge end of the jetting funnel is connected to interface IV through valve VI. The feed end of the sand pump is connected to interface I through valve II and to interface III through valve IV. The discharge end of the sand pump is connected to interface I through valve I and to the feed end of the jetting funnel through valve III. Using a hose and a union, connect ports III and IV of the independent slurry mixing skid to the two material inlets of the slurry mixing tank; connect the circulation tank and the water supply line of the mud pump of the external circulation system to port I of the independent slurry mixing skid; connect the weighted pump of the external circulation system connected to the storage tank to port II of the independent slurry mixing skid. The mixing tank is provided with two material inlets, and the interface III and interface IV of the mixing pipeline are detachably connected to the two material inlets of the mixing tank.

2. The rapid slurry mixing device as described in claim 1, characterized in that: The mixing tank includes a second base and a tank body installed on the second base; an opening is opened in the center of the top of the tank body, and a sealing cover is provided at the opening; two agitators are symmetrically installed on the top of the tank body, and the two agitators are respectively located on the left and right sides of the opening.

3. The rapid pulp mixing device as described in claim 2, characterized in that: The tank body is equipped with a control distribution box for controlling the operation of the slurry mixing tank and the independent slurry mixing skid. The control distribution box is provided with an electrical interface for detachable connection to the independent slurry mixing skid.

4. The rapid slurry mixing device as described in claim 2, characterized in that: The top of the tank is provided with at least one tank surface inlet, and the side of the tank is provided with at least one ladder.

5. The rapid pulp mixing device as described in claim 4, characterized in that: The top of the tank is equipped with a guardrail.

6. The rapid pulp mixing device as described in claim 4, characterized in that: A lighting device is detachably installed on the top of the tank.

7. The rapid pulp mixing device as described in claim 2, characterized in that: The inner wall of the tank is provided with a hydrophobic coating.

8. The rapid pulp mixing device as described in claim 2, characterized in that: The tank body has a material-gathering inclined surface inside, and a material-sinking trough is opened at the bottom of the material-gathering inclined surface.

9. The rapid slurry mixing device as described in claim 2, characterized in that: Valves I, II, III, IV, V, and VI are all butterfly valves.

10. A method of using a rapid pulp mixing device, which is the use of the rapid pulp mixing device as described in claim 3, characterized in that: This includes equipment transportation, equipment installation, and material preparation. The equipment transportation is as follows: Open the sealing cover on the top of the tank, put the independent slurry mixing skid into the tank from the open end, close the sealing cover, and then transport the slurry mixing tank together with the independent slurry mixing skid to the construction site. The equipment installation includes the following steps: Connecting the independent grout mixing skid: After the grout mixing tank is in place, remove the independent grout mixing skid from the tank and place it on one side of the grout mixing tank; using a hose and union, connect interface III and interface IV of the independent grout mixing skid to the two material inlets of the grout mixing tank respectively; connect the sand pump in the independent grout mixing skid to the electrical interface in the control distribution box; Connecting external equipment: Using a hose and union, connect the external circulation system to the independent slurry mixing skid. Specifically, connect the circulation tank and mud pump water supply line of the external circulation system to interface I of the independent slurry mixing skid, and connect the weighted pump connected to the storage tank in the external circulation system to interface II of the independent slurry mixing skid. The material preparation process involves setting the material preparation mode using an independent grout preparation skid valve unit and controlling the material preparation through a control distribution box. The material preparation mode includes emergency material preparation and non-emergency material preparation. When the sealing grout is not urgently needed, non-emergency material preparation is selected, and when the sealing grout is urgently needed, emergency material preparation is selected.

11. The method of using the rapid slurry mixing device as described in claim 10, characterized in that: The non-emergency ingredient preparation includes the following steps: S11, close valves I, IV and V, and open valves II, III and V and valve VI; S12, by controlling the distribution box to start the slurry tank and the independent slurry skid, the sand pump of the independent slurry skid directly draws the drilling fluid in the circulating tank through interface I, and then pumps the drilling fluid into the jet funnel through the mixing pipeline; S13, the plugging material is manually added to the jetting funnel. The drilling fluid and the plugging material are mixed using the jetting funnel. The mixture of drilling fluid and plugging material is then pumped from interface IV into the mixing tank through the mixing pipeline. S14, The mixture of drilling fluid and plugging material is stirred by the agitator in the slurry mixing tank to prepare the plugging slurry; S15, After the mixing work is completed in the mixing tank, the mixing tank and the independent mixing skid are shut off by controlling the distribution box; S16, close valves II and III, open valves I and IV; S17, by controlling the distribution box to start the independent slurry mixing skid, the sand pump in the independent slurry mixing skid is used to extract the plugging slurry from interface Ⅲ to the slurry mixing tank, and the extracted plugging slurry is transported from interface Ⅰ to the mud pump water supply pipeline of the external circulation system through the mixing pipeline, so that the plugging slurry can be directly put into the well.

12. The method of using the rapid slurry mixing device as described in claim 10, characterized in that: The emergency ingredient preparation includes the following steps: S21, close valve III, open valves V and VI; S22, turn on the weight pump connected to the storage tank in the circulation system, use the weight pump to draw drilling fluid from the storage tank, and pump the drilling fluid from interface II of the feed pipeline into the jet funnel; S23, the plugging material is manually added to the jetting funnel. The drilling fluid and the plugging material are mixed using the jetting funnel. The mixture of drilling fluid and plugging material is then pumped from interface IV into the mixing tank through the mixing pipeline. S24, the mixing tank is started by controlling the distribution box, and the agitator in the mixing tank is used to stir the mixture of drilling fluid and plugging material to prepare plugging slurry; S25, close valve II, open valve I and valve IV; S26, by controlling the distribution box to start the independent slurry mixing skid, the sand pump in the independent slurry mixing skid is used to extract the plugging slurry from interface Ⅲ to the slurry mixing tank, and the extracted plugging slurry is transported from interface Ⅰ to the mud pump water supply pipeline of the external circulation system through the mixing pipeline, so that the plugging slurry can be directly put into the well.

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