A mud logging drilling cuttings oil-based mud cleaning device

Abstract

The present application relates to a kind of mud logging rock chip oil-based mud cleaning device, wherein the filter assembly of circulating filter module is connected with circulating pool on one side, and the first circulating pipeline with vibration screen nozzle and stirring sand nozzle of output end is arranged on the other side, and vibration screen nozzle is arranged above vibration screen;Vibration screen is provided with first output port, and stirring lifting mechanism, rotating frame, spin-drying component and sample cylinder are arranged in the processing cavity of processing module, and the first output port and stirring sand nozzle are all aligned with sample cylinder located in material receiving station;After sample cylinder receives material, the stirring shaft of stirring lifting mechanism is lowered into the sample cylinder;The upper pressing mechanism of spin-drying component includes rotating disc and pressing disc connected by spring, and after lower support rotating disc rises, it is held sample cylinder in cooperation with pressing disc, then pressing disc is driven to rotate by rotating disc;Vibration screen and processing cavity are all communicated with rotating screen, and rotating screen outlet is arranged above circulating pool.The present application realizes oil-based mud cleaning and recycling of cleaning fluid.

Description

Technical Field

[0001] This invention relates to the field of logging cuttings treatment technology, specifically to a logging cuttings oil-based mud cleaning device. Background Technology

[0002] Well logging is primarily used for oil and gas resource assessment. The rock cuttings returned to the surface during drilling are a direct source of information about formation lithology and oil and gas reservoirs. After returning to the surface, well cuttings require cleaning. The drilling mud containing these cuttings includes water-based mud, oil-based mud, and synthetic-based mud. Water-based mud uses water as the continuous phase, and the deposits on the cuttings surface are mostly hydrophilic solid particles. The bonding force between the water phase and the cuttings surface is relatively weak, and conventional washing and screening methods are sufficient. Oil-based mud, on the other hand, uses oil as the continuous phase. The cuttings surface is covered by a dense oil film, which has strong adhesion to the rock surface. Conventional washing often fails to penetrate the oil-solid interface. Furthermore, the emulsifiers and wetting agents in oil-based mud make the cuttings surface highly hydrophobic, making it difficult for water to wet and penetrate. Additionally, the gel structure formed by organic bentonite and other substances in the oil phase also adheres firmly to the cuttings surface. Therefore, oil-based drilling mud usually requires special cleaning methods, such as the use of organic solvents, surfactant solutions, high-temperature steam, or specialized cleaning equipment. Conventional cleaning equipment is generally difficult to meet the cleaning requirements of oil-based drilling mud. Furthermore, if the cleaning is not thorough enough, the oil film and solid deposits on the surface of the cuttings will obscure the true color, luster, texture, and oil content of the cuttings, thereby affecting the accuracy and reliability of cuttings logging detection. Summary of the Invention

[0003] The purpose of this invention is to provide a logging cuttings oil-based mud cleaning device that can achieve multiple cleaning purposes and can quickly separate cuttings from cleaning fluid by high-speed rotation and drying of the sample cylinder, thereby meeting the cleaning requirements of oil-based mud. In addition, the cleaning fluid discharged by the system can be recycled and reused, thus avoiding environmental pollution and saving cleaning costs.

[0004] The objective of this invention is achieved through the following technical solution:

[0005] A well logging cuttings oil-based mud cleaning device includes a vibrating screen, a processing module, a cleaning fluid module, and a circulating filtration module. The cleaning fluid module includes a circulation tank, and the circulating filtration module includes a filter assembly and a rotary screen. Liquid output from the circulation tank flows into the filter assembly, and the output side of the filter assembly is provided with a first circulation pipeline. The output end of the first circulation pipeline is provided with a vibrating screen nozzle and a stirring and sand-washing nozzle, wherein the vibrating screen nozzle is located above the vibrating screen. The vibrating screen has a first output port. The processing module includes a processing chamber, and the processing chamber is provided with a stirring and lifting mechanism, a rotating frame, a spin-drying assembly, and a sample cylinder. The sample cylinder is driven to change positions by the rotating frame. The first output... Both the outlet and the agitator spray nozzle are aligned with the sample cylinder located at the material receiving station; the agitator lifting mechanism includes a lifting shaft, and after the sample cylinder receives the material, the agitator shaft descends through the first outlet and enters the sample cylinder; the spin-drying assembly includes an upper clamping mechanism and a lower support turntable with lifting and rotational degrees of freedom. The upper clamping mechanism includes a rotating disk and a clamping disk connected by a spring, wherein after the lower support turntable rises, it cooperates with the clamping disk to clamp the sample cylinder located at the spin-drying station and compress the spring, and then the clamping disk is driven to rotate by the rotating disk; the vibrating screen and the processing chamber are both connected to the rotating screen, and the rotating screen outlet on the rotating screen is located above the circulation pool.

[0006] The stirring and lifting mechanism includes a mounting base and a lifting base. The mounting base has a stirring and lifting device at its upper end and a lifting screw inside. The lifting screw is driven to rotate by the stirring and lifting device. The lifting base is slidably connected to the mounting base, and a lifting nut is provided on one side of the lifting base and fitted onto the lifting screw. The lifting base has a stirring device, and the power shaft end of the stirring device is connected to the stirring shaft. The lower end of the stirring shaft has a stirring blade with a liquid passage hole.

[0007] The rotating frame has sample tube support rings evenly distributed along the circumference. The circumferential wall of the sample tube is provided with filter holes, and the upper end of the sample tube is provided with a sample tube flange. The sample tube is inserted into the corresponding sample tube support ring, and the sample tube flange is supported by the sample tube support ring. A first positioning structure is provided between the sample tube flange and the sample tube support ring. The rotating frame has a rotating frame shaft in the middle, and the rotating frame shaft is driven to rotate by a rotating frame drive assembly.

[0008] The upper pressing mechanism includes a rotating mounting bracket, and the upper side of the mounting bracket is provided with a spin-drying rotating device and the lower side is provided with a rotating disk. The rotating disk is driven to rotate by the spin-drying rotating device, and springs are evenly distributed along the circumference on the lower side of the rotating disk. The mounting bracket is provided with a detection element for detecting the position of the pressing disk.

[0009] The lower support turntable is driven to rise and fall by a turntable lifting mechanism, which includes a lifting mounting frame and a turntable lifting device at the lower end of the lifting mounting frame. The lifting mounting frame has a first lifting plate and a second lifting plate inside, wherein the first lifting plate is connected to the lifting shaft end of the turntable lifting device, and a rotating connecting seat is provided on the first lifting plate. A turntable lifting shaft is provided on the lower side of the lower support turntable, and the turntable lifting shaft is rotatably mounted on the second lifting plate and its lower end passes through the second lifting plate and is rotatably connected to the rotating connecting seat. Lifting guide rods are provided on both sides of the lifting mounting frame, and the two sides of the first lifting plate and the two sides of the second lifting plate are respectively fitted onto the corresponding lifting guide rods.

[0010] The lifting mounting frame includes an upper mounting plate and a lower mounting plate, which are connected by the lifting guide rod. The turntable lifting device is fixedly connected to the lower mounting plate, and the lower side of the processing cavity is fixedly connected to the upper mounting plate. Lifting slides are provided on both sides of the second lifting plate, and the lifting slides are sleeved on the corresponding lifting guide rods. A sensor bracket is provided on the upper mounting plate, and a displacement sensor for detecting the lifting distance of the turntable lifting shaft is provided on the sensor bracket.

[0011] The first circulation pipeline is equipped with a cleaning circulation pipeline. The vibrating screen is connected to the output pipeline of the well site vibrating screen module, and the well site vibrating screen module includes an output auger. The cleaning circulation pipeline is connected to the output auger. A circulation pump is provided on the connecting pipeline between the circulation pool and the filter assembly. A rock cuttings filter screen is provided at the input end of the circulation pool, and the rotary screen outlet is located above the rock cuttings filter screen. Multiple filter screen plates are provided inside the circulation pool. The cleaning fluid module includes a raw liquid pool, and the raw liquid pool is connected to the circulation pool through a replenishment pipeline. A first liquid level detection element is provided in the circulation pool, and a second liquid level detection element is provided in the raw liquid pool.

[0012] The filtration assembly includes a first filter and a second filter. The output side of the circulation pump is connected to a connecting pipe. The input side of the first filter is provided with a first pipe, and the input side of the second filter is provided with a second pipe. One end of the connecting pipe is a connection end, and the other end is a drain end. The connection end is provided with a connection control valve and is connected to the first and second pipes through a three-way control valve A. The drain end is provided with a drain valve. The upper end of the first filter is provided with a first upper output pipe, and the upper end of the second filter is provided with a second upper output pipe. The first and second upper output pipes are connected to the first circulation pipe through a three-way control valve B. The first circulation pipe is provided with a first circulation control valve, and the cleaning circulation pipe is provided on the first circulation pipe between the three-way control valve B and the first circulation control valve. The cleaning circulation pipe is provided with a cleaning circulation control valve.

[0013] The filter assembly has a second circulation pipeline on its output side, the first filter has a first lower output pipeline at its lower end, the second filter has a second lower output pipeline at its lower end, and the first and second lower output pipelines are connected to the second circulation pipeline; the first lower output pipeline has a first lower output control valve, and the second lower output pipeline has a second lower output control valve; the rotary screen has a rotary screen inlet at its upper end, and the vibrating screen and the processing chamber are respectively connected to the rotary screen inlet through pipelines; the rotary screen has a rotary screen waste outlet, and the output end of the second circulation pipeline is connected to the rotary screen waste outlet.

[0014] The vibrating screen, processing module, cleaning fluid module, and circulating filtration module are all integrated into one housing. The cleaning fluid module is located on the rear side of the housing. The upper front end of the housing has a processing chamber and a vibrating screen mounting chamber arranged side by side, and the lower front end has a circulating filtration module mounting chamber. The front side of the circulating filtration module mounting chamber has a housing door.

[0015] The advantages and positive effects of this invention are as follows:

[0016] 1. This invention achieves multiple cleaning of oil-based drilling mud through initial conveying and cleaning by the output auger, vibrating screen cleaning, and stirring and sand washing by the stirring shaft. Considering the viscosity and strong adhesion of oil-based drilling mud, this invention uses a higher frequency vibrating screen (3000 times / minute) to enable rapid solid-liquid separation in the mud. Then, the stirring and sand washing process by the stirring shaft is used to ensure the cleaning effect. When the stirring shaft is used for stirring and sand washing, its rotation speed is controlled at 30-50 rpm. This ensures the cleaning effect while also maintaining the integrity of the rock cuttings, preventing them from losing their original shape due to crushing, which would affect subsequent logging and observation.

[0017] 2. The stirring shaft of the present invention can be driven to rise and fall by a stirring lifting mechanism. When the vibrating screen discharges material, the stirring shaft is in the raised state. After the sample cylinder located at the receiving station completes the material receiving, the stirring shaft can descend through the first output port of the vibrating screen and enter the sample cylinder, so as not to affect the normal discharge of the vibrating screen, and at the same time, it can ensure that the device structure is compact.

[0018] 3. Considering the complex internal composition of the liquid after oil-based mud washing and its easy penetration into the rock cuttings, this invention, after completing the stirring and washing of the material, the sample tube containing the material is quickly rotated to the drying station by a rotating frame. Then, this invention utilizes the cooperation between the lower support turntable and the upper clamping mechanism in the drying assembly to achieve reliable fixation of the sample tube and high-speed drying operation, thereby enabling the washing liquid to be quickly separated from the rock cuttings and avoiding problems such as the liquid components penetrating into the rock cuttings.

[0019] 4. In the spin-drying assembly of the present invention, the upper clamping mechanism uses a clamping plate and a lower support turntable to fix the sample tube. Then, the rotating plate drives the clamping plate to achieve high-speed rotation of the sample tube. When the lower support turntable moves upward, in addition to lifting the sample tube flange of the sample tube and separating it from the corresponding sample tube support ring on the rotating frame, it can also fully compress the spring between the clamping plate and the rotating plate to form sufficient support force, thereby meeting the needs of rotation drive. After spin-drying, during the falling process of the lower support turntable, due to the elastic force of the spring, it can also help to quickly separate the sample tube from the clamping plate in a very short time, without causing unexpected situations such as adhesion.

[0020] 5. In this invention, the rotating disk, pressure disk, and spin-drying rotation device in the upper clamping mechanism are all mounted on a flip-up mounting bracket. This facilitates maintenance and adjustment of the upper clamping mechanism without affecting the structural compactness of the invention during normal operation. Furthermore, the mounting bracket can be equipped with a detection element to monitor the position of the pressure disk, ensuring that the sample cylinder falls smoothly into the corresponding sample cylinder support ring after the spin-drying operation. Additionally, a visual inspection device can be installed on the upper side of the processing chamber for comprehensive monitoring, ensuring accurate operation of all mechanisms within the device.

[0021] 6. The lower support turntable of the present invention achieves lifting and adjustment through the turntable lifting mechanism. The structural design of the turntable lifting mechanism ensures that the lower support turntable is lifted and lowered smoothly, while not affecting the high-speed rotation of the lower support turntable during spin-drying. At the same time, it can also meet the stable support requirements of the lower support turntable during high-speed rotation.

[0022] 7. The rotating frame of the present invention utilizes multiple sample cylinder support rings arranged along the circumferential direction to support and position multiple sample cylinders, which can meet the needs of continuous sample cylinder loading. In addition, a suitable first positioning structure can be set between the sample cylinder flange at the upper end of the sample cylinder and the sample cylinder support ring to prevent the sample cylinder from moving. Especially during the stirring and washing sand operation, it can ensure that the sample cylinder will not rotate with the stirring shaft, thereby affecting the stirring and washing sand effect.

[0023] 8. This invention unifies the liquid output from the vibrating screen and the processing chamber through a circulating filtration module for recycling and utilization. The liquid after the device is cleaned is not directly discharged, which can avoid environmental pollution and also meets the requirements of cost saving.

[0024] 9. The circulating filtration module of the present invention first uses a rotary screen to perform solid-liquid sieving on the cleaned liquid. The sieved liquid then passes through the circulating pool in the cleaning liquid module to achieve filtration and sedimentation, so as to further remove solid substances in the liquid. Then, the liquid is filtered again using a filtration component. Through the above multiple processes, the present invention can ensure that the cleaning liquid that is finally recycled meets the cleaning requirements and will not carry solid impurities into the cleaning process.

[0025] 10. The filtration components in the circulating filtration module of this invention include two filters. When one filter needs to be stopped for cleaning, maintenance, or malfunction, the other filter can be started immediately. Regardless of which filter is operating, the requirements for circulating and utilizing the cleaning fluid can be met. Furthermore, this invention utilizes the original liquid tank in the cleaning fluid module to replenish the circulating tank in a timely manner, thus ensuring that the amount of cleaning fluid throughout the entire circulation process is always sufficient to meet the cleaning needs.

[0026] 11. This invention can integrate the vibrating screen, processing module, cleaning fluid module and circulating filtration module into a single box, which facilitates the overall transportation of the device and also facilitates connection with on-site equipment such as well site vibrating screen modules. Attached Figure Description

[0027] Figure 1 This is a schematic diagram illustrating the connection principle of the present invention.

[0028] Figure 2 for Figure 1 A schematic diagram of the overall structure of the present invention.

[0029] Figure 3 for Figure 2 Top view of the overall structure of the present invention.

[0030] Figure 4 for Figure 2 The overall structural front view of the present invention.

[0031] Figure 5 for Figure 2 Side view of the overall structure of the present invention.

[0032] Figure 6 for Figure 2 A schematic diagram of the internal structure of the present invention.

[0033] Figure 7 for Figure 6 A schematic diagram of the stirring lifting mechanism.

[0034] Figure 8 for Figure 7 A cross-sectional view of the stirring lifting mechanism.

[0035] Figure 9 for Figure 6 A three-dimensional structural diagram of the rotating frame, processing chamber, and sample cylinder.

[0036] Figure 10 for Figure 9 Cross-sectional view of the rotating frame, processing chamber, and sample cylinder.

[0037] Figure 11 for Figure 6 A schematic diagram of the upper and middle clamping mechanism.

[0038] Figure 12 for Figure 6 A schematic diagram showing the coordination of the upper and middle clamping mechanism, the sample cylinder, and the lower support turntable.

[0039] Figure 13 for Figure 12 A schematic diagram of the structure of the turntable lifting mechanism.

[0040] Figure 14 for Figure 6 Schematic diagram of the structure of a medium-sized vibrating screen.

[0041] Figure 15 for Figure 6 A schematic diagram of the structure of a rotary screen.

[0042] Among them, 1 is a vibrating screen, 101 is a vibrating motor, 102 is a support spring, 103 is a support frame, 104 is a vibrating screen mounting cavity, 105 is a first output port, 106 is a second output port, and 107 is an input connector; 2 is a processing module, 201 is a stirring and lifting mechanism, 2011 is a stirring and lifting device, 2012 is a mounting base, 2013 is a lifting base, 20131 is a lifting screw nut, 2014 is a stirring device, 2015 is a stirring shaft, 20151 is a stirring blade, 2016 is a stirring and lifting bracket, and 2017 is a lifting screw; 202 is a rotating frame, 2021 is a sample cylinder support ring, 2022 is a rotating drive device, and 2023 is a rotating transmission base; 203 is an upper clamping mechanism, and 2031 is a swing... The rotary device includes: 2032 (mounting bracket), 20321 (hinge shaft), 2033 (rotary disk), 2034 (pressure plate), 2035 (spring), 2036 (hinge seat), 20361 (locking bolt), 2037 (pressure bracket), and 2038 (transition connecting plate); 204 (sample cylinder), 2041 (sample cylinder flange); 205 (visual inspection device); 206 (processing chamber), 2061 (processing chamber outlet), 2062 (rotary shaft sealing seat), 2063 (lifting shaft sealing seat); 207 (lower support turntable), 2071 (turntable lifting shaft); 208 (turntable lifting mechanism), 2081 (turntable lifting device), 2082 (first lifting plate), 20821 (rotary connecting seat), 2083 (second lifting plate), and 2084 (…). 2085 is the lifting guide rod, 2086 is the lifting slide, 2087 is the upper mounting plate, 2088 is the lower mounting plate, 2089 is the sensor bracket, and 2081 is the displacement sensor; 3 is the cleaning fluid module, 301 is the raw liquid tank, 302 is the circulation tank, 3021 is the rock cuttings filter screen, and 3022 is the filter screen plate; 4 is the circulation filtration module, 401 is the circulation pump, 402 is the connecting pipeline, 4021 is the connecting control valve, 4022 is the drain valve, 403 is the three-way control valve A, 404 is the first pipeline, 405 is the second pipeline, 406 is the first filter, 407 is the second filter, 408 is the first lower output pipeline, 4081 is the first lower output control valve, 409 is the second lower output pipeline, and 4091 is the second lower output pipeline. 410 is the first upper output pipeline, 411 is the second upper output pipeline, 412 is the three-way control valve B, 413 is the first circulation pipeline, 4131 is the first circulation control valve, 4132 is the vibrating screen nozzle, 4133 is the sand washing spray control valve, 4134 is the stirring sand washing nozzle, 414 is the second circulation pipeline, 415 is the cleaning circulation pipeline, 4151 is the cleaning circulation control valve, 416 is the rotary screen, 4161 is the rotary screen inlet, 4162 is the rotary screen outlet, 4163 is the rotary screen waste outlet; 5 is the housing, 501 is the housing door; 6 is the well site vibrating screen module, 601 is the well site vibrating screen, 602 is the output auger, 6021 is the auger motor, 603 is the output pipeline; 7 is the control module. Detailed Implementation

[0043] The invention will now be described in further detail with reference to the accompanying drawings.

[0044] like Figure 1 As shown, the present invention includes a vibrating screen 1, a processing module 2, a cleaning fluid module 3, and a circulating filtration module 4. The circulating filtration module 4 includes a circulating pump 401, a filter assembly, and a rotary screen 416. The cleaning fluid module 3 includes a circulating tank 302. The circulating pump 401 is connected to the circulating tank 302 on one side and to the filter assembly on the other side. The output side of the filter assembly is provided with a first circulating pipeline 413 and a cleaning circulating pipeline 415. The output end of the first circulating pipeline 413 is provided with a vibrating screen nozzle 4132 and a stirring sand washing nozzle 4134. The vibrating screen nozzle 4132 is located above the vibrating screen 1, which can meet the material vibration cleaning needs. The stirring sand washing nozzle 4134 is located above the processing module 2. The vibrating screen 1 and the cleaning circulating pipeline 415 are both connected to the well site vibrating screen module 6. The water output from the cleaning circulating pipeline 415 can meet the initial conveying and cleaning needs of the well site vibrating screen module 6.

[0045] like Figure 1 As shown, the vibrating screen 1 is provided with a first output port 105, such as... Figure 6 As shown, the processing module 2 includes a processing chamber 206, and the processing chamber 206 is provided with a stirring and lifting mechanism 201, a rotating frame 202, a spin-drying assembly, and a sample cylinder 204, wherein, as shown... Figures 9-10 As shown, the sample cylinder 204 is arranged circumferentially on the rotating frame 202, and the sample cylinder 204 is driven to change positions via the rotating frame 202; Figure 1 As shown, the first output port 105 and the stirring and washing spray head 4134 are both aligned with the sample cylinder 204 located at the material receiving station.

[0046] like Figures 7-8 As shown, the stirring and lifting mechanism 201 includes a stirring shaft 2015 that can be raised and lowered. After the sample cylinder 204 receives the material, the stirring shaft 2015 descends through the first output port 105 and enters the sample cylinder 204. Then, the stirring shaft 2015 starts to rotate and cooperates with the water output of the stirring and washing nozzle 4134 to stir and wash the material in the sample cylinder 204.

[0047] like Figure 12As shown, the spin-drying assembly includes an upper pressing mechanism 203 and a lower support turntable 207 that can be raised and lowered. The upper pressing mechanism 203 includes a rotating disk 2033 and a pressing disk 2034 connected by a spring 2035. After the lower support turntable 207 rises, it abuts against the lower end of the sample cylinder 204 located at the spin-drying station. Then the lower support turntable 207 continues to rise until the upper end of the sample cylinder 204 abuts against the pressing disk 2034 and compresses the spring 2035. At this time, the sample cylinder 204 is no longer restricted by the rotating frame 202 and can rotate freely. At the same time, the spring 2035 is fully compressed to form sufficient support force so that the pressing disk 2034 can be driven to rotate by the rotating disk 2033, thereby driving the sample cylinder 204 at the spin-drying station to rotate. At this time, the lower support turntable 207 rotates in coordination.

[0048] like Figure 1 As shown, the processing chamber 206 has a processing chamber outlet 2061 on its lower side, and the vibrating screen 1 has a second output port 106 on its lower side. Both the processing chamber outlet 2061 and the second output port 106 are connected to the rotary screen inlet 4161 at the upper end of the rotary screen 416. The rotary screen 416 has a rotary screen outlet 4162 on one side, and the rotary screen outlet 4162 is located above the circulation pool 302. The rotary screen 416 is a technology known in the art and is a commercially available product.

[0049] like Figures 2-6 As shown, in this embodiment, the vibrating screen 1, processing module 2, cleaning fluid module 3, and circulating filtration module 4 are all integrated into a housing 5. The cleaning fluid module 3 is located on the rear side of the housing 5. The upper front end of the housing 5 has a processing chamber 206 and a vibrating screen mounting chamber 104 arranged side by side, and the lower front end has a circulating filtration module mounting chamber. The front side of the circulating filtration module mounting chamber has a housing door 501. A control module 7 containing a control system is located on one side of the housing 6.

[0050] like Figure 6 and Figure 14 As shown, in this embodiment, a vibration motor 101 is provided on the lower side of the vibrating screen 1. Each corner end of the vibrating screen 1 is supported by a support spring 102, which is mounted on a support frame 103. The support frame 103 is located in the vibrating screen mounting cavity 104. The vibrating screen 1 is a product known in the art and is commercially available, such as a product from Henan Xinsman Machinery Equipment Co., Ltd.

[0051] like Figures 6-8As shown, in this embodiment, the stirring and lifting mechanism 201 of the processing module 2 includes a mounting base 2012 and a lifting base 2013. The mounting base 2012 is provided with a stirring and lifting device 2011 at its upper end and a lifting screw 2017 inside. The lifting screw 2017 is driven to rotate by the stirring and lifting device 2011. The lifting base 2013 is slidably connected to the mounting base 2012, and a lifting nut 20131 is provided on one side of the lifting base 2013 and fitted onto the lifting screw 2017. A stirring device 2014 is provided on the lifting base 2013, and the power shaft end of the stirring device 2014 is connected to the stirring shaft 2015. The lower end of the stirring shaft 2015 is provided with a stirring blade 20151 with a liquid passage hole. When the stirring and lifting mechanism 201 is working, the rotation of the lifting screw 2017 drives the lifting seat 2013 to move up and down through the lifting nut 20131. After the lifting seat 2013 descends to its position, the stirring shaft 2015 is driven to rotate through the stirring device 2014 to begin stirring and washing sand. In this embodiment, both the stirring and lifting device 2011 and the stirring device 2014 can be geared servo motors.

[0052] like Figures 6-8 As shown, in this embodiment, the mounting base 2012 is mounted on a stirring lifting bracket 2016, and the stirring lifting bracket 2016 is positioned above the processing chamber 206.

[0053] like Figure 6 and Figures 9-10 As shown in this embodiment, sample cylinder support rings 2021 are evenly distributed along the circumferential direction on the rotating frame 202. A sample cylinder flange 2041 is provided at the upper end of the sample cylinder 204. The sample cylinder 204 is inserted into the corresponding sample cylinder support ring 2021, and the sample cylinder flange 2041 abuts against and supports the sample cylinder support ring 2021. Filter holes are evenly distributed on the circumferential wall of the sample cylinder 204. The size of the filter holes must ensure that rock fragments required for detection do not flow out. Furthermore, a first positioning structure can be provided between the sample cylinder flange 2041 and the sample cylinder support ring 2021. For example, a positioning block is provided on the lower side of the sample cylinder flange 2041, and a positioning groove that cooperates with the positioning block is provided on the upper side of the sample cylinder support ring 2021. The shape and number of the positioning block and the positioning groove can be set according to actual needs. The first positioning structure can prevent the sample cylinder 204 from moving around, especially when the stirring shaft 2015 is stirring and washing sand. The first positioning structure can prevent the sample cylinder 204 from rotating with stirring, thereby ensuring the stirring and washing effect.

[0054] like Figure 6 and Figures 9-10As shown, in this embodiment, the rotating frame 202 has a rotating frame shaft in the middle, and the rotating frame shaft is driven to rotate by a rotating frame drive assembly located on the lower side of the processing cavity 206. In this embodiment, the rotating frame drive assembly includes a rotating drive device 2022 and a rotating transmission seat 2023, wherein the rotating transmission seat 2023 has a meshing worm gear and worm, the worm is driven to rotate by the rotating drive device 2022, and the worm gear is coaxially connected to the rotating frame shaft. In this embodiment, the rotating drive device 2022 can be a geared servo motor, which transmits torque through the worm gear and worm to drive the rotating frame 202 to rotate, while also ensuring position self-locking.

[0055] like Figure 10 As shown, in this embodiment, a rotating shaft sealing seat 2062 is provided at the bottom of the processing chamber 206. The lower end of the rotating frame shaft passes through the rotating shaft sealing seat 2062 and is connected to the worm gear shaft in the middle of the worm gear, thus ensuring the sealing of the processing chamber 206. The sealing structure inside the rotating shaft sealing seat 2062 is a technology known in the art. For example, multiple sealing rings can be set on the rotating frame shaft, thus ensuring sealing without affecting its rotation.

[0056] like Figure 6 and Figures 11-12 As shown, in this embodiment, the upper pressing mechanism 203 includes a mounting bracket 2032, and the mounting bracket 2032 is provided with a spin-drying rotating device 2031 on the upper side and a rotating disk 2033 on the lower side. The rotating disk 2033 is driven to rotate by the spin-drying rotating device 2031. Springs 2035 are evenly distributed along the circumferential direction on the lower side of the rotating disk 2033, and the lower end of each spring 2035 is connected to the pressing disk 2034.

[0057] like Figure 6 and Figures 11-12 As shown, in this embodiment, the upper clamping mechanism 203 includes a clamping bracket 2037, which is located on the upper side of the processing cavity 206. The upper end of the clamping bracket 2037 is provided with a hinge seat 2036. The rear side of the mounting bracket 2032 is hinged to the hinge seat 2036 via a hinge shaft 20321. The hinge seat 2036 is provided with a locking bolt 20361. The rear side of the mounting bracket 2032 has an opening that mates with the locking bolt 20361. The locking bolt 20361 passes through the opening and is threadedly connected to the hinge seat 2036. When the locking bolt 20361 is screwed inward to clamp the opening, the position of the mounting bracket 2032 is locked. When the locking bolt 20361 is loosened outward, the mounting bracket 2032 can rotate backward around the hinge shaft 20321, facilitating maintenance and adjustment without affecting the structural compactness of the invention during normal operation.

[0058] like Figures 11-12 As shown, in this embodiment, the lower side of the clamping plate 2034 can be provided with a second positioning structure that cooperates with the sample cylinder flange 2041 as needed. For example, the lower side of the clamping plate 2034 is provided with a positioning protrusion, and the upper side of the sample cylinder flange 2041 is provided with a positioning recess that cooperates with the positioning protrusion. This can further ensure that the clamping plate 2034 drives the sample cylinder 204 to rotate. In addition, the lower side of the mounting bracket 2032 is provided with a transition connecting plate 2038. Each corner end of the transition connecting plate 208 is connected to the mounting bracket 2032 through a connecting rod. The transition connecting plate 208 is provided with a rotary joint, and the upper side of the rotary joint is connected to the power shaft end of the spin-drying rotation device 2031, and the lower end is connected to the disc shaft in the middle of the rotating disk 2033. This can ensure the stable rotation drive of the rotating disk 2033. The spin-drying rotation device 2031 can be a geared servo motor. The transition connecting plate 2038 can also be equipped with a detection element (such as a position sensor, which is known in the art and is a commercially available product) for detecting the position of the clamping plate 2034. After the spin-drying operation is completed, the detection element works in conjunction with the marked position on the clamping plate 2034. Only when the detection element and the marked position accurately correspond can the control system stop the spin-drying rotation device 2031. At this time, the positions of the clamping plate 2034 and the sample cylinder 204 ensure that the sample cylinder 204 can subsequently fall accurately onto the corresponding sample cylinder support ring 2021. Figure 6 As shown, the present invention can also be configured with a visual inspection device 205 (such as a visual camera, which is a well-known technology in the art and a commercially available product) at a suitable position on the upper side of the processing cavity 206 as needed, so as to further realize the all-round detection of the position of each component and the movement of the mechanism of the present invention.

[0059] like Figure 6 , Figure 10 and Figures 12-13 As shown, in this embodiment, the lower support turntable 207 is located at the bottom of the processing cavity 206, and the lower side of the processing cavity 206 is provided with a turntable lifting mechanism 208, and the lower support turntable 207 is driven to rise and fall by the turntable lifting mechanism 208.

[0060] like Figures 12-13As shown, in this embodiment, the turntable lifting mechanism 208 includes a lifting mounting frame, and the upper end of the lifting mounting frame is fixedly connected to the lower side of the processing cavity 206, and the lower end is provided with a turntable lifting device 2081; the lifting mounting frame is provided with a first lifting plate 2082 and a second lifting plate 2083 that can be lifted and moved, wherein the first lifting plate 2082 is connected to the lifting shaft end of the turntable lifting device 2081, and the first lifting plate 2082 is provided with a rotating connecting seat 20821; the lower support turntable 207 is provided with a turntable lifting shaft 2071 on its lower side, and the turntable... The turntable lifting shaft 2071 is rotatably mounted on the second lifting plate 2083, and the lower end of the turntable lifting shaft 2071 passes through the second lifting plate 2083 and is rotatably connected to the rotating connecting seat 20821. Lifting guide rods 2084 are provided on both sides of the lifting mounting frame, and the first lifting plate 2082 and the second lifting plate 2083 are respectively sleeved on the corresponding lifting guide rods 2084. Lifting slides 2085 are provided on both sides of the second lifting plate 2083, and the lifting slides 2085 are sleeved on the corresponding lifting guide rods 2084. The turntable lifting device 2081 can be an electric push rod or similar device. Furthermore, bearings can be installed inside the rotating connecting seat 20821 and the second lifting plate 2083 to support the rotation of the turntable lifting shaft 2071.

[0061] When the turntable lifting mechanism 208 is working, the turntable lifting device 2081 drives the first lifting plate 2082 and the second lifting plate 2083 to rise, thereby driving the turntable lifting shaft 2071 to rise. Simultaneously, since the turntable lifting shaft 2071 is rotatably mounted on the second lifting plate 2083 and its lower end is rotatably connected to the rotating connecting seat 20821, the turntable lifting mechanism 208 will not affect the rotation of the lower support turntable 207 during spin-drying. Furthermore, since this invention requires the rapid rotation of the sample cylinder 204 to quickly separate the oil-based mud cleaning fluid from the rock cuttings, thereby preventing it from seeping into the rock cuttings, the combination of the first lifting plate 2082, the second lifting plate 2083, the lifting guide rod 2084, and other structures ensures the vertical and stable lifting of the lower support turntable 207 while also meeting the stable support requirements of the lower support turntable 207 during high-speed rotation.

[0062] like Figures 12-13As shown, in this embodiment, the lifting mounting frame includes an upper mounting plate 2086 and a lower mounting plate 2087, and the upper mounting plate 2086 and the lower mounting plate 2087 are connected by the lifting guide rod 2084. The turntable lifting device 2081 is fixedly connected to the lower mounting plate 2087, and the lower side of the processing chamber 206 is fixedly connected to the upper mounting plate 2086. Additionally, a sensor bracket 2088 can be provided on the upper mounting plate 2086 as needed. The sensor bracket 2088 can be equipped with a displacement sensor 2089 for detecting the lifting distance of the turntable lifting shaft 2071. The lifting distance of the turntable lifting shaft 2071 must ensure that the spring 2035 between the rotating disk 2033 and the pressing disk 2034 can be fully compressed to form sufficient support force, thereby ensuring that the rotating disk 2033 can drive the pressing disk 2034, sample cylinder 204, etc., to rotate and spin dry at high speed. In this embodiment, the displacement sensor 2089 is a technology known in the art and is a commercially available product. In addition, the spin-drying speed of the sample cylinder 204 can be set to 800-1000 rpm.

[0063] like Figure 10 As shown, in this embodiment, the bottom of the processing chamber 206 is provided with a lifting shaft sealing seat 2063, and the turntable lifting shaft 2071 passes through the lifting shaft sealing seat 2063. The internal sealing structure of the lifting shaft sealing seat 2063 is a technology known in the art, such as setting multiple sealing rings on the turntable lifting shaft 2071.

[0064] like Figure 1 As shown, in this embodiment, the filtration components of the circulating filtration module 4 include a first filter 406 and a second filter 407. The output side of the circulating pump 401 is connected to a connecting pipe 402. The input side of the first filter 406 is provided with a first pipe 404, and the input side of the second filter 407 is provided with a second pipe 405. One end of the connecting pipe 402 is a connection end, and the other end is a drain end. The connection end is provided with a connection control valve 4021, and the connection end is connected to the first pipe 404 and the second pipe 405 through a three-way control valve A403. The drain end is provided with a drain valve 4022. In this embodiment, the first filter 406 and the second filter 407 are both commercially available products. When the present invention is working, only one filter is working. When cleaning and maintenance are required or the filter malfunctions, the other filter is activated.

[0065] like Figure 1As shown, in this embodiment, the first filter 406 has a first upper output pipe 410 at its upper end and a first lower output pipe 408 at its lower end; the second filter 407 has a second upper output pipe 411 at its upper end and a second lower output pipe 409 at its lower end; the first upper output pipe 410 and the second upper output pipe 411 are connected to the first circulation pipe 413 through a three-way control valve B412, and the first circulation pipe 413 is equipped with a first circulation control valve 4131; the filter assembly output side is equipped with a second circulation pipe 414, and both the first lower output pipe 408 and the second lower output pipe 409 are connected to the second circulation pipe 414, and the first lower output pipe 408 is equipped with a first lower output control valve 4081, and the second lower output pipe 409 is equipped with a second lower output control valve 4091. Figure 15 As shown, the rotary screen 416 has a rotary screen inlet 4161 at its upper end, and a rotary screen waste outlet 4163 on one side of the upper end of the rotary screen 416 for discharging waste solid material after screening. At the same time, the solid material filtered by the filter is output to the upper end of the rotary screen 416 through the second circulation pipeline 414, falls into the rotary screen 416 through the rotary screen inlet 4161, and is finally discharged together through the rotary screen waste outlet 4163.

[0066] like Figure 1 and Figure 6 As shown, in this embodiment, the vibrating screen 1 has an input connector 107 on one side that connects to the output pipe 603 of the well site vibrating screen module 6. The well site vibrating screen module 6 includes a well site vibrating screen 601, and an output auger 602 is provided on the lower side of the well site vibrating screen. A cleaning circulation pipe 415 is provided on the first circulation pipe 413 between the three-way control valve B412 and the first circulation control valve 4131, and the cleaning circulation pipe 415 is connected to the output auger 602 to achieve the initial conveying and cleaning of materials. A cleaning circulation control valve 4151 is provided on the cleaning circulation pipe 415. The well site vibrating screen 601 and the output auger 602 are both known technologies in the art and are commercially available products. The output auger 602 is driven to rotate and output through an auger motor 6021 at one end.

[0067] In this embodiment, all pipeline control valves in the circulating filtration module 4 are technologies known in the art and are commercially available products.

[0068] like Figure 1As shown, in this embodiment, the input end of the circulation pool 302 is provided with a rock debris filter screen 3021, and the rotary screen outlet 4162 is located above the rock debris filter screen 3021. Residual rock debris will be retained in the rock debris filter screen 3021 for filtration. The circulation pool 302 is provided with multiple filter screen plates 3022, and the filter screen plates 3022 are provided with sieve holes of a set mesh number (such as 100 mesh) so that solid substances in the liquid can be filtered and precipitated in the circulation pool 302. The sieve holes on each filter screen plate 3022 can be successively reduced along the direction from the input end to the output end as needed, thereby achieving multi-stage filtration. In addition to the circulation tank 302, the cleaning fluid module 3 also includes a raw material tank 301, which is connected to the circulation tank 302 via a replenishment pipeline. The replenishment pipeline is equipped with a replenishment control valve to control the flow of the pipeline. The circulation tank 302 is equipped with a first liquid level detection element (such as level gauges S1, S2, and S13) for real-time detection of the liquid level. The raw material tank 301 is equipped with a second liquid level detection element (such as level gauges S3 and S4) for real-time detection of the liquid level. During operation, the specially prepared oil-based mud cleaning fluid is stored in the raw material tank 301. When the liquid level in the circulation tank 302 does not meet the requirements, the raw material tank 301 replenishes the cleaning fluid to the circulation tank 302, thereby ensuring that the amount of cleaning fluid is always sufficient for cleaning needs throughout the entire circulation process. The oil-based mud cleaning fluid is a technology known in the art.

[0069] The working principle of this invention is as follows:

[0070] The cleaning process of this invention includes the following steps:

[0071] Step 1: The output auger 602 in the well site vibrating screen module 6 outputs material to the vibrating screen 1. During the output process, the cleaning circulation pipeline 415 of the circulation filter module 4 cooperates to output water to the output auger 602, thereby realizing the initial conveying and cleaning of the material.

[0072] Step 2: After the material is fed into the vibrating screen 1, it is vibrated and screened. At the same time, the vibrating screen nozzle 4132 cooperates with water to achieve vibrating screening and cleaning of the material. The screened solid material is fed into the sample cylinder 204 located at the receiving station in the processing module 2 through the first output port 105, and the liquid is fed into the rotary screen 416 of the circulating filter module 4 through the second output port 106.

[0073] In this step, the conventional vibration frequency of the linear vibrating screen used for cleaning logging samples in the prior art is 1400 times / minute. However, since this invention is designed for oil-based mud encasing rock cuttings, and considering the viscosity and strong adhesion of oil-based mud, the conventional vibrating screen frequency is difficult to distinguish between solid and liquid separation. Therefore, this invention uses a high-frequency vibrating screen 1 of 3000 times / minute to increase screening efficiency and vibration force, so that the solid and liquid in the mud can be separated quickly.

[0074] Step 3: As Figures 6-8 As shown, when the material is input into the sample cylinder 204 located at the receiving station through the first output port 105, the stirring shaft 2015 in the stirring lifting mechanism 201 is in an upward state, which will not affect the output of the vibrating screen 1. After the sample cylinder 204 has finished receiving the material, the stirring shaft 2015 descends and passes through the first output port 105 into the sample cylinder 204 that has finished discharging. Then the stirring shaft 2015 is driven to rotate by the stirring device 2014, and starts to stir and wash the material in the sample cylinder 204 in conjunction with the water output of the stirring and washing spray nozzle 4134. The washing liquid after stirring and washing first falls into the processing chamber 206, and then flows into the rotating screen 416 of the circulating filter module 4.

[0075] In this embodiment, the rotation speed of the stirring shaft 2015 is controlled at 30 to 50 revolutions per minute. If the rotation speed is too slow, the cleaning effect cannot be guaranteed. If the rotation speed is too fast, the rock cuttings will be crushed, and the integrity of the rock cuttings cannot be guaranteed, which is not conducive to subsequent logging observation and inspection analysis.

[0076] In this embodiment, since a first positioning structure is provided between the sample tube flange 2041 and the sample tube support ring 2021, the sample tube 204 can be prevented from rotating during stirring.

[0077] Other examples Figure 7 As shown, the stirring blades 20151 at the lower end of the stirring shaft 2015 are covered with liquid passage holes, which can ensure that the cleaning liquid passes through during sand washing, thus ensuring both stirring and cleaning effects.

[0078] Step 4: After the sample cylinder 204 containing the material has completed stirring, washing, and cleaning, it is rotated by the rotating frame 202 to the spin-drying station, and then... Figure 12As shown, the lower support turntable 207 in the spin-drying assembly is driven to rise by the turntable lifting mechanism 208 and abuts against the lower end of the sample cylinder 204. Then, the lower support turntable 207 continues to rise until the upper end of the sample cylinder 204 fully abuts against the pressing plate 2034 of the upper pressing mechanism 203. At this time, it is necessary to ensure that the spring 2035 between the rotating disk 2033 and the pressing plate 2034 is fully compressed. In addition, at this time, the sample cylinder flange 2041 of the sample cylinder 204 is lifted and separated from the corresponding sample cylinder support ring 2021, which will not affect the subsequent spin-drying rotation.

[0079] Step 5: As Figure 12 As shown, the spin-drying rotary device 2031 in the upper pressing mechanism 203 starts and drives the rotating disk 2033 to rotate, thereby driving the pressing disk 2034, sample cylinder 204 and lower support turntable 207 to rotate simultaneously to realize the spin-drying operation of the material in the sample cylinder 204. The spun liquid first falls into the processing chamber 206 and then flows into the rotating screen 416 of the circulating filter module 4.

[0080] In this embodiment, the spin-drying speed of the sample cylinder 204 is 800-1000 rpm. The high-speed rotation of the sample cylinder 204 can quickly separate the oil-based mud cleaning fluid from the rock cuttings, thereby preventing it from seeping into the rock cuttings and saving time.

[0081] In this step, such as Figure 13 As shown, since the turntable lifting shaft 2071 is rotatably mounted on the second lifting plate 2083 and rotatably connected to the rotating connecting seat 20821, the turntable lifting mechanism 208 will not affect the rotation and spin-drying operation of the lower support turntable 207 and the sample cylinder 204 on it. In addition, the combination of the first lifting plate 2082, the second lifting plate 2083, the lifting guide rod 2084 and other structures can ensure the vertical and stable lifting of the lower support turntable 207, while also meeting the stable support requirements of the lower support turntable 207 when rotating at high speed.

[0082] In this step, a second positioning structure may be provided between the clamping plate 2034 and the sample tube flange 2041 as needed, thereby further ensuring that the clamping plate 2034 drives the sample tube 204 to rotate.

[0083] In this step, a detection element for detecting the position of the clamping plate 2034 can be set on the transition connecting plate 2038 on the lower side of the mounting bracket 2032 as needed. In this way, after the spin-drying operation is completed, the detection element can detect the marked position on the clamping plate 2034 to ensure that the position of the sample cylinder 204 meets the requirements. That is, after the sample cylinder flange 2041 of the sample cylinder 204 falls, it can automatically and accurately position and support the corresponding sample cylinder support ring 2021. In addition, the visual inspection device 205 on the upper side of the processing chamber 206 can also be used for detection.

[0084] Step Six: After the sample cylinder 204 completes the spin-drying operation, the rotating frame 202 drives the sample cylinder 204 to rotate to the discharge station, and then the corresponding device transfers the sample cylinder 204 to the next process, such as using a robotic arm to transfer the processed sample cylinder 204 to the next process, which is a well-known technology in the field.

[0085] Since conventional single-stage cleaning is generally insufficient for cleaning oil-based mud, this invention achieves multiple cleanings of oil-based mud through measures such as initial conveying cleaning by the output auger 602, vibrating screening cleaning by the vibrating screen 1, and stirring and sand washing cleaning by the stirring shaft 2015 in conjunction with the stirring and sand washing nozzle 4134. The stirring and sand washing is similar to manual cleaning in the prior art and can effectively remove oil film and other substances from the surface of rock cuttings.

[0086] Furthermore, due to the complex internal composition of the liquid after oil-based mud washing and its tendency to penetrate into the rock cuttings, this invention, after completing the stirring and washing of the material, utilizes the lower support turntable 207 and the upper clamping mechanism 203 in the spin-drying assembly to reliably fix the sample cylinder 204 and perform high-speed spin-drying, thereby achieving rapid separation of the washing liquid from the rock cuttings and preventing impurities in the washing liquid from re-penetrating into the rock cuttings. The turntable lifting mechanism 208 of this invention, while satisfying the lifting drive of the lower support turntable 207, does not affect the rotation of the lower support turntable 207 and ensures stable support for its high-speed rotation.

[0087] Finally, since the cleaning fluid cannot be directly discharged after cleaning the rock debris, it needs to be recycled and reused to avoid environmental pollution and meet cost-saving requirements. Therefore, this invention uses the circulation tank 302 in the cleaning fluid module 3 in conjunction with the circulation filter module 4 to recycle and reuse the cleaning fluid. The specific process is as follows:

[0088] Step 1: As Figure 1 As shown, the liquid output from the vibrating screen 1 and the processing chamber 206 first enters the rotary screen 416 of the circulating filtration module 4 for rotary sieving to achieve rapid solid-liquid separation. The separated waste solid material is then processed by... Figure 15The waste discharge port 4163 of the rotary screen shown in the figure is discharged, and the separated liquid enters the circulation tank 302 through the rotary screen outlet 4162.

[0089] Step Two: As Figure 1 As shown, after the liquid enters the circulation tank 302, it first passes through the rock cutting filter screen 3021 to filter rock cuttings, and then passes through the multi-stage filter screen plate 3022 to further filter and precipitate solid substances in the liquid. In this embodiment, it is required that solid substances larger than 100 mesh complete the filtration and precipitation in the circulation tank 302, and then the liquid enters the circulation filtration module 4.

[0090] In this step, such as Figure 1 As shown, the circulating tank 302 can be replenished with cleaning fluid in a timely manner through the original liquid tank 301 according to the actual liquid level detection, so as to ensure that the amount of cleaning fluid in the entire circulating cleaning process meets the cleaning requirements.

[0091] Step 3: As Figure 1 As shown, the liquid in the circulation tank 302 is driven into the filter assembly by the circulation pump 401 in the circulation filter module 4. The three-way control valve A403 and the three-way control valve B412 can realize the switching of the working state of the first filter 406 and the second filter 407 through the control system. When one filter is working, the other filter is not working. When the working filter needs to be stopped for cleaning and maintenance or malfunctions, the other filter can be started in time.

[0092] Among them, such as Figure 1 As shown, regardless of which filter in the circulating filtration module 4 is working, it can meet the requirements for the circulation and utilization of the cleaning fluid.

[0093] Step 4: The liquid output from the filtration assembly is recycled through the first circulation pipeline 413 to the vibrating screen nozzle 4132 and the agitation and sand washing nozzle 4134. Additionally, the liquid output from the filtration assembly is recycled through the cleaning circulation pipeline 415 to the output auger 602 of the well site vibrating screen module 6. The solid material output from the filtration assembly is returned to the rotary screen 416 through the second circulation pipeline 414 and discharged together through the rotary screen waste outlet 4163.

Claims

1. A logging cuttings oil-based mud cleaning device, characterized in that: The system includes a vibrating screen (1), a processing module (2), a cleaning fluid module (3), and a circulating filtration module (4). The cleaning fluid module (3) includes a circulation tank (302), and the circulating filtration module (4) includes a filter assembly and a rotary screen (416). The liquid output from the circulation tank (302) flows into the filter assembly, and the output side of the filter assembly is provided with a first circulation pipeline (413). The output end of the first circulation pipeline (413) is provided with a vibrating screen nozzle (4132) and a stirring sand washing nozzle (4134). The vibrating screen nozzle (4132) is located above the vibrating screen (1); the vibrating screen (1) is provided with a first output port (105); the processing module (2) includes a processing chamber (206), and the processing chamber (206) is provided with a stirring lifting mechanism (201), a rotating frame (202), a spin-drying assembly and a sample tube (204), wherein the sample tube (204) is driven to change positions by the rotating frame (202), and the first output port (105) and the stirring and sand washing nozzle (4134) are both aligned with the bearing. The sample cylinder (204) at the material receiving station; the stirring and lifting mechanism (201) includes a stirring shaft (2015) capable of lifting and lowering, and after the sample cylinder (204) receives the material, the stirring shaft (2015) descends through the first output port (105) and enters the sample cylinder (204); the spin-drying assembly includes an upper pressing mechanism (203) and a lower support turntable (207) with lifting and rotational degrees of freedom, the upper pressing mechanism (203) including a rotating disk (2035) connected by a spring (2035). 3) and the clamping plate (2034), wherein after the lower support turntable (207) rises, it cooperates with the clamping plate (2034) to clamp the sample cylinder (204) located at the spin-drying station and compress the spring (2035), and then the clamping plate (2034) is driven to rotate by the rotating plate (2033); the vibrating screen (1) and the processing chamber (206) are both connected to the rotating screen (416), and the rotating screen outlet (4162) on the rotating screen (416) is located above the circulation pool (302).

2. The logging cuttings oil-based mud cleaning device according to claim 1, characterized in that: The stirring and lifting mechanism (201) includes a mounting base (2012) and a lifting base (2013). The mounting base (2012) is provided with a stirring and lifting device (2011) at its upper end and a lifting screw (2017) inside. The lifting screw (2017) is driven to rotate by the stirring and lifting device (2011). The lifting base (2013) is slidably connected to the mounting base (2012), and a lifting nut (20131) is provided on one side of the lifting base (2013) and fitted onto the lifting screw (2017). The lifting base (2013) is provided with a stirring device (2014), and the power shaft end of the stirring device (2014) is connected to the stirring shaft (2015). The lower end of the stirring shaft (2015) is provided with a stirring blade (20151) with a liquid passage hole.

3. The logging cuttings oil-based mud cleaning device according to claim 1, characterized in that: The rotating frame (202) has sample tube support rings (2021) evenly distributed along the circumferential direction. The sample tube (204) has filter holes on its circumferential wall. The sample tube (204) has a sample tube flange (2041) at its upper end. The sample tube (204) is inserted into the corresponding sample tube support ring (2021), and the sample tube flange (2041) is supported by the sample tube support ring (2021). A first positioning structure is provided between the sample tube flange (2041) and the sample tube support ring (2021). The rotating frame (202) has a rotating frame shaft in the middle, and the rotating frame shaft is driven to rotate by a rotating frame drive assembly.

4. The logging cuttings oil-based mud cleaning device according to claim 1, characterized in that: The upper pressing mechanism (203) includes a rotating mounting bracket (2032), and the mounting bracket (2032) is provided with a spin-drying rotating device (2031) on the upper side and a rotating disk (2033) on the lower side. The rotating disk (2033) is driven to rotate by the spin-drying rotating device (2031). Springs (2035) are evenly distributed along the circumferential direction on the lower side of the rotating disk (2033). The mounting bracket (2032) is provided with a detection element for detecting the position of the pressing disk (2034).

5. The logging cuttings oil-based mud cleaning device according to claim 1, characterized in that: The lower support turntable (207) is driven to rise and fall by a turntable lifting mechanism (208). The turntable lifting mechanism (208) includes a lifting mounting frame, and a turntable lifting device (2081) is provided at the lower end of the lifting mounting frame. The lifting mounting frame is provided with a first lifting plate (2082) and a second lifting plate (2083). The first lifting plate (2082) is connected to the lifting shaft end of the turntable lifting device (2081). A rotating connecting seat (20821) is provided on the first lifting plate (2082). The lower support turntable (207) is provided with a turntable lifting shaft (2071) on its lower side. The turntable lifting shaft (2071) is rotatably mounted on the second lifting plate (2083) and its lower end passes through the second lifting plate (2083) and is rotatably connected to the rotating connecting seat (20821). The lifting mounting frame is provided with lifting guide rods (2084) on both sides, and the first lifting plate (2082) and the second lifting plate (2083) are respectively fitted onto the corresponding lifting guide rods (2084).

6. The logging cuttings oil-based mud cleaning device according to claim 5, characterized in that: The lifting mounting frame includes an upper mounting plate (2086) and a lower mounting plate (2087), and the upper mounting plate (2086) and the lower mounting plate (2087) are connected by the lifting guide rod (2084). The turntable lifting device (2081) is fixedly connected to the lower mounting plate (2087), and the lower side of the processing cavity (206) is fixedly connected to the upper mounting plate (2086). The second lifting plate (2083) is provided with lifting slides (2085) on both sides, and the lifting slides (2085) are sleeved on the corresponding lifting guide rods (2084). The upper mounting plate (2086) is provided with a sensor bracket (2088), and the sensor bracket (2088) is provided with a displacement sensor (2089) for detecting the lifting distance of the turntable lifting shaft (2071).

7. The logging cuttings oil-based mud cleaning device according to claim 1, characterized in that: A cleaning circulation pipeline (415) is provided on the first circulation pipeline (413). The vibrating screen (1) is connected to the output pipeline (603) of the well site vibrating screen module (6), and the well site vibrating screen module (6) includes an output auger (602). The cleaning circulation pipeline (415) is connected to the output auger (602). A circulation pump (401) is provided on the connecting pipeline between the circulation tank (302) and the filter assembly. Rock cuttings are provided at the input end of the circulation tank (302). The filter screen (3021) and the rotary screen outlet (4162) are located above the rock debris filter screen (3021). The circulation tank (302) is equipped with multiple filter screen plates (3022). The cleaning fluid module (3) includes a raw liquid tank (301) and the raw liquid tank (301) is connected to the circulation tank (302) through a replenishment pipeline. The circulation tank (302) is equipped with a first liquid level detection element and the raw liquid tank (301) is equipped with a second liquid level detection element.

8. The logging cuttings oil-based mud cleaning device according to claim 7, characterized in that: The filtration assembly includes a first filter (406) and a second filter (407). The output side of the circulation pump (401) is connected to a connecting pipe (402). The input side of the first filter (406) is provided with a first pipe (404), and the input side of the second filter (407) is provided with a second pipe (405). One end of the connecting pipe (402) is a connection end, and the other end is a drain end. The connection end is provided with a connection control valve (4021), and the connection end is connected to the first pipe (404) and the second pipe (405) through a three-way control valve A (403). The drain end is provided with a drain valve (4022). The filter (406) is provided with a first upper output pipe (410) at its upper end, and the second filter (407) is provided with a second upper output pipe (411) at its upper end. The first upper output pipe (410) and the second upper output pipe (411) are connected to the first circulation pipe (413) through a three-way control valve B (412). The first circulation pipe (413) is provided with a first circulation control valve (4131), and the cleaning circulation pipe (415) is provided on the first circulation pipe (413) between the three-way control valve B (412) and the first circulation control valve (4131). The cleaning circulation pipe (415) is provided with a cleaning circulation control valve (4151).

9. The logging cuttings oil-based mud cleaning device according to claim 8, characterized in that: The filter assembly is provided with a second circulation pipe (414) on the output side, the first filter (406) is provided with a first lower output pipe (408) at the lower end, the second filter (407) is provided with a second lower output pipe (409) at the lower end, and the first lower output pipe (408) and the second lower output pipe (409) are connected to the second circulation pipe (414); the first lower output pipe (408) is provided with a first lower output control valve (4081), and the second lower output pipe (409) is provided with a second lower output control valve (4091); the rotary screen (416) is provided with a rotary screen inlet (4061) at the upper end, and the vibrating screen (1) and the processing chamber (206) are respectively connected to the rotary screen inlet (4061) through pipes, the rotary screen (416) is provided with a rotary screen waste outlet (4163), and the output end of the second circulation pipe (414) is connected to the rotary screen waste outlet (4163).

10. The logging cuttings oil-based mud cleaning device according to claim 1, characterized in that: The vibrating screen (1), processing module (2), cleaning fluid module (3) and circulating filter module (4) are all integrated on a box (5). The cleaning fluid module (3) is located on the rear side of the box (5). The upper front side of the box (5) is provided with a processing chamber (206) and a vibrating screen mounting chamber (104) in parallel, and the lower front side is provided with a circulating filter module mounting chamber. The front side of the circulating filter module mounting chamber is provided with a box door (501).

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