A petroleum distribution sampling apparatus for use in petroleum exploration

Abstract

This invention provides a petroleum distribution sampling device for oil extraction, belonging to the field of petroleum extraction sampling technology. It solves the technical problems of existing methods that only sample a single point in each layer, resulting in unrepresentative samples, potentially impure test results, and inaccurate detection results due to ambiguity. This petroleum distribution sampling device includes a positioning mechanism with a main body mounted on it. A control panel is fixed to the top of the main body. Three sampling mechanisms are installed inside the main body. Each sampling mechanism includes a first mounting plate and a second mounting plate fixed inside the main body. A motor is fixed to the top corner of the first mounting plate, and a lead screw is fixed to the motor's output end. The lead screw rotates between the first and second mounting plates. A double-hole sliding plate is threaded onto the lead screw, and a sliding rod is vertically inserted through the double-hole sliding plate. This invention has the advantage of improving the accuracy of sampling results through multi-angle sampling on the same horizontal plane.

Description

Technical Field

[0001] This invention belongs to the field of petroleum extraction sampling technology, and relates to a distributed sampling device, particularly a petroleum distributed sampling device for petroleum extraction. Background Technology

[0002] Oil distribution sampling is a crucial step in the oil extraction process, involving detailed exploration and analysis of underground oil resources.

[0003] A search revealed a Chinese patent document disclosing a petroleum distribution sampling device for oil extraction [Application No.: 202311344539.4; Publication No.: CN117213908B]. This device utilizes a slider that slides within a groove, allowing the slider to drive a second bevel gear for height adjustment. A motor drives a support rod, which in turn rotates a first bevel gear. The meshing between the first and second bevel gears enables the second bevel gear to drive a drill bit to process the soil. This allows the sampling device to adjust appropriately according to the thickness of different soil layers, preventing the extraction of soil from the same layer from adjacent storage chambers. Furthermore, the drilling method avoids damage from rocks, extending the device's lifespan.

[0004] Although the oil distribution sampling device disclosed in this patent can be appropriately adjusted according to the thickness between different soil layers, it samples by drilling in a single direction, and only drills and samples soil at a single point in each layer. This results in samples that are not representative, and there is a possibility of impure test results, which is not conducive to detection and affects the accuracy of the test results. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a petroleum distribution sampling device for petroleum development. The technical problem this invention aims to solve is: how to achieve multi-angle sampling on the same horizontal plane to improve the accuracy of sampling results.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] A petroleum exploration and sampling device includes a positioning mechanism. A body is mounted on the positioning mechanism, and a control panel is fixed to the top of the body. Three sampling mechanisms are installed inside the body. Each sampling mechanism includes a first mounting plate and a second mounting plate fixed inside the body. A motor is fixed to the top corner of the first mounting plate, and a lead screw is fixed to the motor's output end. The lead screw rotates between the first and second mounting plates. A double-hole sliding plate is threaded onto the lead screw, and a sliding rod is vertically inserted through the double-hole sliding plate. The sliding rod is fixed between the first and second mounting plates. A connecting rod is fixed to the bottom of the double-hole sliding plate, and a circular block is fixed to the bottom of the connecting rod. The machine body is fixed with four rings. A first ring is fitted on the rings. A first pull rod is integrally formed on the first ring. A fixed plate is fixed inside the machine body below the circular block. A vibration motor is fixed at the bottom of the fixed plate. A vibration plate is fixed at the output end of the vibration motor. A rotating wheel is rotatably connected around the vibration plate. A rotating arm is fixed on the rotating wheel. A rotating shaft is fixed at the end of the rotating arm away from the rotating wheel. Fixed rings are fixed at both ends of the rotating shaft. A connecting bent rod is integrally formed on each of the two fixed rings. A connecting circular plate is integrally formed between the two connecting bent rods. The connecting circular plate is fixedly connected to the first pull rod. A rotating component is fitted on the rotating shaft. A wave-shaped drill bit is fixed on the rotating component.

[0008] The working principle of this invention is as follows: When a small-range adjustment of the waveform drill bit position is required, the motor drives the lead screw to rotate. A sliding rod passes through the double-hole sliding plate to prevent it from rotating with the lead screw. The limiting effect of the sliding rod causes the double-hole sliding plate and the lead screw to generate a threaded transmission rod, enabling the double-hole sliding plate to move linearly up and down between the first mounting plate and the second mounting plate. The connecting rod moves with the double-hole sliding plate, and the circular block and ring both move with the connecting rod. The first pull rod moves with the ring through the first collar. The rotating shaft moves with the first pull rod through the fixed ring, connecting bent rod, and connecting circular plate. The rotating arm drives the rotating wheel to rotate on the vibrating plate with the rotating shaft. The waveform drill bit achieves a small-range height adjustment through the rotating component and the rotating shaft. Furthermore, the waveform drill bit can also adjust the sampling alignment angle through the adjustment mechanism. The vibration motor drives... The vibrating plate vibrates, and the wave-shaped drill bit vibrates indirectly with it. After receiving the vibration transmitted by the vibrating motor, the unique wave structure of the wave-shaped drill bit begins to disturb and break up the soil layer. The vibration weakens the binding force between soil particles, making them easier to break and penetrate. A single vibrating motor drives the wave-shaped drill bit at multiple angles on the horizontal plane to break the soil and sample, increasing the number of sampling points in the same soil layer. During vibration, the gap between the first ring and the circular ring prevents the vibration from affecting the power source for adjusting the height. This allows for fine-tuning of the sampling point height and increases the number of samples in the same layer, making the test results more representative and preventing the presence of special impurities at a certain sampling point in the same layer from affecting the results, thus improving the accuracy of the sampling and testing results.

[0009] The two ends of the rotating shaft are fitted with washers and nuts, the rotating part is disposed between the washers and nuts, and the rotating part is provided with a collecting mechanism.

[0010] With the above structure, the rotating shaft generates friction through the squeezing between the shims, and the rotation between the rotating parts and the rotating shaft is damped by tightening the nut, so that the angle of the collecting mechanism after adjustment by the adjustment mechanism can be stopped.

[0011] The collecting mechanism includes a fixed baffle fixed to the rotating component, a wave-shaped drill bit located inside the fixed baffle, first fixing blocks fixed on three sides of the outer wall of the fixed baffle, a movable baffle sleeved at the end of the fixed baffle away from the rotating component, second fixing blocks fixed on three sides of the outer wall of the movable baffle, a spring fixed between the second fixing blocks and the first fixing blocks, a second positioning groove integrally formed on the lower part of the inner wall of the fixed baffle, a fixed channel slidably connected in the second positioning groove, a first positioning groove integrally formed on the lower part of the inner wall of the movable baffle, a movable wall slidably connected in the first positioning groove, the movable wall contacting the inner wall of the fixed channel, a transmission cylinder fixed at the bottom of the fixed channel, a corrugated pipe fixed at the end of the transmission cylinder away from the fixed channel, a connecting plate fixed at the end of the corrugated pipe away from the transmission cylinder, and a storage mechanism provided on the connecting plate.

[0012] Using the above structure, the inner walls of the sampling opening are excavated to be flat before sampling. The fixed channel is embedded in the second positioning groove and fixed with bolts, and the movable wall is embedded in the first positioning groove and fixed with bolts. The fixed channel and the movable wall form a channel for the co-directional transmission cylinder. The corrugated drill bit contacts the soil layer through the sampling mechanism and the adjustment mechanism. At this time, the movable baffle frame contacts the well wall with the second fixed block under the restoring force of the spring. When the corrugated drill bit breaks the soil to collect samples by the vibration motor, the fixed baffle frame and the movable baffle frame block the top and sides of the corrugated drill bit, and the soil sample passes through the fixed channel, the transmission cylinder, and the corrugated pipe in sequence. Upon entering the receiving mechanism, the fixed and movable enclosures prevent soil particles from affecting the sample due to surrounding excavation work, thus improving sample purity and sampling accuracy. The corrugated pipe employs a double inner and outer sleeve structure with corrugated joints, which increases compensation, reduces corrugated joint thickness, and enhances axial stiffness, thereby achieving vibration reduction and mitigating the impact of the waveform drill bit's vibration on the receiving mechanism. Simultaneously, the corrugated pipe can utilize the vibration of the waveform drill bit to accelerate sample transmission within it, and this vibration helps prevent clogging of the corrugated pipe.

[0013] An adjustment mechanism is provided between the sampling mechanism and the collection mechanism. The adjustment mechanism includes a second electric telescopic rod fixed at the center of the top of the fixed plate. A cross steel ring is fixed at the top of the second electric telescopic rod. A second pull rod is movably connected to the cross steel ring. Both ends of the second pull rod are integrally formed with second collars. The second pull rod is movably connected to the cross steel ring by being sleeved on the upper second collar. Two hanging ears are sleeved on the lower second collar. A sleeve is integrally formed between the two hanging ears. A third collar is sleeved on the other hanging ear. A third pull rod is integrally formed on the third collar. The third pull rod is rotatably connected to the second fixed block.

[0014] With the above structure, the cross steel ring moves up and down with the extension and retraction of the second electric telescopic rod. The second tie rod moves with the cross steel ring via the second collar. The sleeve slides on the first tie rod via the lug and the second collar. The third tie rod moves with the sleeve via the third collar and the lug. The second fixed block rotates up or down with the third tie rod. The movable and fixed stop frames move with the third tie rod. The rotating part rotates on the rotating shaft with the fixed stop frame. The corrugated drill bit adjusts the alignment angle with the rotating part. The rotation of the rotating arm and the rotating part can change the height of the sampling point. The height between the three sampling mechanisms can be adjusted separately to adapt to soil layers of different thicknesses. The spacing between the four corrugated drill bits can also be reduced or increased by rotating them up or down to adapt to different specifications of oil sampling well inner diameters. The corrugated drill bit can be vertically aligned with the inner wall of the soil layer, improving soil breaking efficiency.

[0015] The collecting mechanism is equipped with a storage mechanism, which includes a fixed frame located below the vibrating plate inside the machine body. A connecting frame is fixed to the front end of the fixed frame. The inner wall of the connecting frame is adapted to the connecting plate. A storage basket is placed inside the fixed frame. A limit strip is fixed inside the storage basket. A baffle slides between the limit strip and the storage basket. Through holes communicating with the corrugated pipe are opened on the storage basket, the connecting frame, and the fixed frame.

[0016] With the above structure, the corrugated pipe can slide from top to bottom into the connecting frame through the connecting plate, and then be installed and fixed by screwing in the screws. The sample enters the storage basket through the corrugated pipe. After sampling, the storage basket can be taken out separately. The baffle can slide down within the limiting strip and the fixed frame to block the through hole of the storage basket to prevent the sample from leaking out. The storage basket can then be taken out for subsequent sample testing. The detachable storage basket allows the sample to be taken away for testing directly. Moreover, the corrugated pipe, fixed channel, and movable wall can all be removed, which facilitates cleaning after sampling and improves the accuracy of subsequent sampling results. In addition, the detachable parts facilitate maintenance and replacement and reduce costs.

[0017] A second magnetic plate is fixed to the lower side of the baffle that contacts the storage basket. A first magnetic plate is fixed to the inner wall of the fixed frame above the through hole. The first magnetic plate and the second magnetic plate are slidably connected. A handle is fixed to the top of the storage basket near the connecting frame.

[0018] With the above structure, when the storage basket is inserted into the fixed frame from top to bottom, the first magnetic plate and the second magnetic plate attract each other, and the baffle is magnetically fixed above the through hole along with the second magnetic plate. When the storage basket is taken out, the storage basket moves upward, and the position of the baffle remains unchanged, so that the baffle moves downward relative to block the through hole. The opening and blocking of the through hole by the baffle is achieved by magnetic attraction, which is convenient for operation.

[0019] The positioning mechanism is equipped with adjustment and fixing mechanisms on both the front and rear sides. The adjustment and fixing mechanisms include a rotating rod, with a grounding plate rotatably connected to the bottom end of the rotating rod, and a ground cone passing through the top of the grounding plate.

[0020] Using the above structure, the grounding plate is brought into contact with the flat ground. The rotation angle of the rotating rod is adjusted according to the ground elevation difference to keep the positioning mechanism horizontal, so that the machine body can be vertical in the sampling well. After adjustment, the ground cone is nailed in to fix it, which can adapt to more ground elevation differences.

[0021] The positioning mechanism includes two symmetrical slide rails, with a threaded rod rotatably connected inside each slide rail. A knob is fixed at one end of the threaded rod, and a slider is threadedly connected to the threaded rod. A first electric telescopic rod is rotatably connected to the top of the slider, and a fixed seat is rotatably connected to the upper end of the first electric telescopic rod. The upper part of the machine body is vertically mounted on the fixed seat, and the machine body is fixedly connected to the fixed seat. The rotating rod is rotatably connected to the slide rail.

[0022] With the above structure, the height of the fixed base changes with the extension and retraction of the first electric telescopic rod. Rotating the knob causes the threaded rod to rotate, and the slider, limited by the slide rail, generates threaded transmission with the threaded rod. The slider can move linearly left and right. By adapting to the rotation of the first electric telescopic rod, the height of the fixed base changes with the first electric telescopic rod, and the height of the machine body changes with the fixed base. This allows the height of the machine body to be adjusted even after the ground cone is installed, avoiding repeated disassembly and assembly of the ground cone that could damage the soil layer. Damage to the soil layer would reduce the operational stability of the machine body. The height can still be adjusted after fixing without moving the ground cone, maintaining stability and facilitating operation.

[0023] The threaded rod and the slide rail are rotatably connected by bearings.

[0024] With the above structure, the bearing is a damping bearing. When the threaded rod rotates with the knob, the moving end of the bearing rotates with the threaded rod, while the fixed end remains relatively stationary with the slide rail. This makes the rotation of the threaded rod smoother, and its damping property allows the angle to stop after rotation, thus improving stability.

[0025] Compared with existing technologies, the petroleum distribution sampling equipment used in this oil development project has the following advantages:

[0026] 1. In the sampling mechanism, the first pull rod moves with the circular ring via the first set of rings. The rotating shaft moves with the first pull rod via the fixed ring, connecting bent rod, and connecting circular plate. The rotating arm drives the rotating wheel to rotate on the vibrating plate. The waveform drill bit achieves small-range height adjustment via the rotating component and the rotating shaft. The waveform drill bit can also adjust the sampling angle via the adjustment mechanism. The vibration motor drives the vibrating plate to vibrate, and the waveform drill bit indirectly vibrates with the vibrating plate. After receiving the vibration transmitted by the vibration motor, the unique waveform structure of the waveform drill bit begins to disturb and break the soil layer. The vibration weakens the binding force between soil particles, making them easier to break and penetrate by the drill bit. A single vibration motor drives waveform drill bits at multiple angles on the horizontal plane to break the soil and sample, increasing the number of sampling points in the same soil layer. During vibration, the gap between the first set of rings and the circular ring prevents the vibration from affecting the power source for adjusting the height. This achieves fine-tuning of the sampling point height and increases the number of samples in the same layer, making the test results more representative and avoiding the presence of special impurities at a certain sampling point in the same layer that could affect the results, thus improving the accuracy of the sampling test results.

[0027] 2. When the corrugated drill bit is used to break the soil and collect samples via a vibrating motor, the top and sides of the corrugated drill bit are shielded by fixed and movable baffles in the collection mechanism. The soil sample is then passed sequentially through a fixed channel, a transfer cylinder, and a corrugated pipe into the receiving mechanism. The enclosing fixed and movable baffles prevent soil particles from affecting the sample due to surrounding soil breaking work, thus improving sample purity and the accuracy of sampling results. The corrugated pipe adopts a double inner and outer sleeve structure with corrugated joints, which helps to increase the compensation amount, reduce the thickness of the corrugated joints, and improve axial stiffness, thereby achieving a vibration reduction effect and mitigating the impact of the corrugated drill bit's vibration on the receiving mechanism. At the same time, the corrugated pipe can also use the vibration of the corrugated drill bit to accelerate the transmission of the sample within the corrugated pipe. The vibration in this process also helps to prevent the corrugated pipe from clogging.

[0028] 3. The cross steel ring in the adjustment mechanism moves up and down with the extension and retraction of the second electric telescopic rod. The second pull rod moves with the cross steel ring via the second collar. The sleeve slides on the first pull rod via the lug and the second collar. The third pull rod moves with the sleeve via the third collar and the lug. The second fixed block rotates up or down with the third pull rod. The movable and fixed stop frames move with the third pull rod. The rotating part rotates on the rotating shaft with the fixed stop frame. The corrugated drill bit adjusts the alignment angle with the rotating part. The rotation of the rotating arm and the rotating part can change the height of the sampling point. The height between the three sampling mechanisms can be adjusted separately to adapt to soil layers of different thicknesses. The spacing between the four corrugated drill bits can also be reduced or increased by rotating them up or down to adapt to different specifications of oil sampling well inner diameters. The corrugated drill bit can be vertically aligned with the inner wall of the soil layer to improve soil breaking efficiency.

[0029] 4. The corrugated pipe slides down into the connecting frame from top to bottom through the connecting plate, and then screws in to secure it. The sample enters the storage basket through the corrugated pipe. After sampling, the storage basket can be removed separately. The baffle slides down within the limiting strip and the fixed frame to block the through hole of the storage basket, preventing sample leakage. The storage basket can then be removed for subsequent sample testing. The detachable storage basket allows for direct sample removal for testing. The corrugated pipe, fixed channel, and movable wall can all be removed, facilitating cleaning after sampling and improving the accuracy of subsequent sampling results. The detachable parts facilitate maintenance and replacement, reducing costs. During the process of inserting the storage basket into the fixed frame from top to bottom, the first magnetic plate and the second magnetic plate attract each other. The baffle is magnetically fixed above the through hole along with the second magnetic plate. When the storage basket is removed, the storage basket moves upward, while the position of the baffle remains unchanged, achieving a relative downward movement of the baffle to block the through hole. The magnetic attraction enables the baffle to open and block the through hole, facilitating operation.

[0030] 5. By rotating the first electric telescopic rod, the fixed base changes height with the first electric telescopic rod, and the machine body changes height with the fixed base. This allows the machine body to still change height after the ground cone is installed, avoiding repeated disassembly and assembly of the ground cone which would damage the soil layer. Damage to the soil layer would reduce the operational stability of the machine body. The height can still be adjusted after fixing without moving the ground cone, maintaining stability and facilitating operation. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the present invention.

[0032] Figure 2 This is a schematic diagram of the sampling mechanism in this invention.

[0033] Figure 3 This is a schematic diagram of the fuselage portion of the present invention.

[0034] Figure 4 yes Figure 3 Enlarged view of the structure at point A in the middle.

[0035] Figure 5 This is a schematic diagram of the structure of the vibration motor part in this invention.

[0036] Figure 6 This is a schematic diagram of the adjustment mechanism in this invention.

[0037] Figure 7 This is a schematic diagram of the rotating shaft part in this invention.

[0038] Figure 8 This is a schematic diagram of the rotating wheel part in this invention.

[0039] Figure 9 This is a schematic diagram of the collecting mechanism in this invention.

[0040] Figure 10This is a longitudinal section diagram of the fixed baffle frame portion in this invention.

[0041] Figure 11 This is a longitudinal sectional view of the storage mechanism in this invention.

[0042] Figure 12 This is an exploded view of the storage mechanism in this invention.

[0043] Figure 13 This is a longitudinal sectional view of the adjusting and fixing mechanism in this invention.

[0044] Figure 14 This is a longitudinal section diagram of the slide rail section in this invention.

[0045] In the diagram, 1. Positioning mechanism; 101. Slide rail; 102. Threaded rod; 103. Rotary knob; 104. Slider; 105. Bearing; 106. First electric telescopic rod; 107. Fixed base; 2. Adjustment and fixing mechanism; 201. Rotating rod; 202. Grounding plate; 203. Ground cone; 3. Machine body; 4. Control panel; 5. Sampling mechanism; 501. First mounting plate; 502. Motor; 503. Lead screw; 504. 505. Second mounting plate; 506. Slide rod; 507. Double-hole sliding plate; 508. Connecting rod; 509. Round block; 510. Ring; 511. First pull rod; 512. First collar; 513. Connecting bent rod; 514. Fixing ring; 515. Rotating shaft; 516. Rotating component; 517. Washer; 518. Nut; 519. Fixing plate; 520. Vibration motor; 521. Vibrating plate; 522. Rotating wheel; 5 22. Wave-shaped drill bit; 523. Rotating arm; 524. Connecting circular plate; 6. Adjusting mechanism; 601. Second electric telescopic rod; 602. Cross steel ring; 603. Second collar; 604. Second pull rod; 605. Sleeve; 606. Hanging lug; 607. Third collar; 608. Third pull rod; 7. Collecting mechanism; 701. Fixed stop frame; 702. First fixing block; 703. Second fixing block; 704. 705. Spring; 706. Movable baffle; 707. Movable wall; 708. First positioning groove; 709. Fixed channel; 710. Second positioning groove; 711. Transmission cylinder; 712. Corrugated pipe; 713. Connecting plate; 8. Storage mechanism; 801. Fixed frame; 802. Connecting frame; 803. First magnetic plate; 804. Storage basket; 805. Handle; 806. Baffle; 807. Second magnetic plate; 808. Limiting strip. Detailed Implementation

[0046] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0047] like Figures 1-14As shown, this oil exploration uses an oil distribution sampling device, including a positioning mechanism 1. A body 3 is mounted on the positioning mechanism 1, and a control panel 4 is fixed to the top of the body 3. Three sampling mechanisms 5 are installed inside the body 3. Each sampling mechanism 5 includes a first mounting plate 501 and a second mounting plate 504 fixed inside the body 3. A motor 502 is fixed to the top corner of the first mounting plate 501, and a lead screw 503 is fixed to the output end of the motor 502. The lead screw 503 rotates between the first mounting plate 501 and the second mounting plate 504. A double-hole sliding plate 506 is threaded onto the lead screw 503. A sliding rod 505 is vertically inserted through the double-hole sliding plate 506 and fixed between the first mounting plate 501 and the second mounting plate 504. A connecting rod 507 is fixed to the bottom of the double-hole sliding plate 506, and a round block 508 is fixed to the bottom of the connecting rod 507. Four rings 500 are fixed to the bottom of the round block 508. 9. A first ring 511 is fitted on the ring 509. A first pull rod 510 is integrally formed on the first ring 511. A fixing plate 518 is fixed inside the machine body 3 at a position below the circular block 508. A vibration motor 519 is fixed at the bottom of the fixing plate 518. A vibration plate 520 is fixed at the output end of the vibration motor 519. A rotating wheel 521 is rotatably connected around the vibration plate 520. A rotating arm 523 is fixed on the rotating wheel 521. A rotating shaft 514 is fixed at the end of the rotating arm 523 away from the rotating wheel 521. Fixing rings 513 are fixed at both ends of the rotating shaft 514. A connecting bent rod 512 is integrally formed on both fixing rings 513. A connecting circular plate 524 is integrally formed between the two connecting bent rods 512. The connecting circular plate 524 is fixedly connected to the first pull rod 510. A rotating component 515 is fitted on the rotating shaft 514. A wave drill bit 522 is fixed on the rotating component 515.

[0048] In this embodiment, the motor 502, the vibration motor 519, and the control panel 4 are electrically connected. When a small range of adjustment of the waveform drill bit 522 is required, the motor 502 drives the lead screw 503 to rotate. The slide rod 505 passes through the double-hole sliding plate 506 to prevent it from rotating with the lead screw 503. The limiting effect of the slide rod 505 causes the double-hole sliding plate 506 and the lead screw 503 to form a threaded transmission rod, realizing the vertical movement of the double-hole sliding plate 506 between the first mounting plate 501 and the second mounting plate 504. Linear motion occurs as follows: connecting rod 507 moves with double-hole sliding plate 506; circular block 508 and circular ring 509 both move with connecting rod 507; first pull rod 510 moves with circular ring 509 via first collar 511; rotating shaft 514 moves with first pull rod 510 via fixed ring 513, connecting bent rod 512, and connecting circular plate 524; rotating arm 523 drives rotating wheel 521 to rotate on vibrating plate 520 via rotating shaft 514; wave drill bit 522 moves with rotating shaft 510 via rotating component 515. 4. The height can be adjusted within a small range, and the waveform drill bit 522 can also adjust the sampling angle of the drill bit through the adjustment mechanism 6. The vibration motor 519 drives the vibration plate 520 to vibrate, and the waveform drill bit 522 indirectly vibrates with the vibration plate 520. After receiving the vibration transmitted by the vibration motor 519, the unique waveform structure of the waveform drill bit 522 begins to disturb and break the soil layer. The vibration weakens the binding force between soil particles, making them easier to break and penetrate by the drill bit. Moreover, one vibration motor 519 drives the waveform drill bit 522 at multiple angles on the horizontal plane to break the soil and sample, thereby increasing the number of sampling points in the same soil layer. During vibration, the gap between the first ring 511 and the circular ring 509 avoids the vibration from affecting the power source for adjusting the height. This not only achieves fine adjustment of the sampling point height but also increases the number of samples in the same layer, making the test results of the test samples more representative and avoiding the presence of special impurities in a certain sampling point in the same layer that would affect the results, thus improving the accuracy of the sampling test results.

[0049] The two ends of the rotating shaft 514 are fitted with washers 516 and nuts 517, and the rotating part 515 is disposed between the washers 516 and nuts 517. The rotating part 515 is provided with a collecting mechanism 7.

[0050] In this embodiment, the rotating shaft generates friction through the squeezing between the shims 516 and 516, and the rotation between the rotating part 515 and the rotating shaft 514 is damped by tightening the nut 517, so that the angle of the collecting mechanism 7 after adjustment under the operation of the adjusting mechanism 6 has the ability to stop.

[0051] The collecting mechanism 7 includes a fixed stop frame 701 fixed to the rotating component 515, a wave drill bit 522 located inside the fixed stop frame 701, and first fixing blocks 702 fixed on three sides of the outer wall of the fixed stop frame 701. A movable stop frame 705 is sleeved on the end of the fixed stop frame 701 away from the rotating component 515, and second fixing blocks 703 fixed on three sides of the outer wall of the movable stop frame 705. A spring 704 is fixed between the second fixing block 703 and the first fixing block 702. A second positioning groove 709 is integrally formed on the lower part of the inner wall of the fixed stop frame 701. A fixed channel 708 is slidably connected within the second positioning groove 709. A first positioning groove 707 is integrally formed on the lower part of the inner wall of the movable baffle 705. A movable wall 706 is slidably connected within the first positioning groove 707. The movable wall 706 contacts the inner wall of the fixed channel 708. A transmission cylinder 710 is fixed at the bottom of the fixed channel 708. A corrugated pipe 711 is fixed at the end of the transmission cylinder 710 away from the fixed channel 708. A connecting plate 712 is fixed at the end of the corrugated pipe 711 away from the transmission cylinder 710. A storage mechanism 8 is provided on the connecting plate 712.

[0052] In this embodiment, the inner walls of the sampling hole are excavated to be flat before sampling. The fixed channel 708 is embedded in the second positioning groove 709 and fixed with bolts. The movable wall 706 is embedded in the first positioning groove 707 and fixed with bolts. The fixed channel 708 and the movable wall 706 form a channel for the co-directional transmission cylinder 710. The wave drill bit 522 is brought into contact with the soil layer by the sampling mechanism 5 and the adjusting mechanism 6. At this time, the movable baffle 705 is brought into contact with the well wall by the second fixed block 703 under the restoring force of the spring 704. When the wave drill bit 522 breaks the soil to take samples by the vibration motor 519, the fixed baffle 701 and the movable baffle 705 block the top and sides of the wave drill bit 522, and the soil sample passes through the fixed channel in sequence. 708, the transfer cylinder 710, and the corrugated pipe 711 enter the receiving mechanism 8. The enclosed fixed frame 701 and the movable frame 705 prevent the soil particles from affecting the sample due to the surrounding excavation work, thereby improving the sample purity and the accuracy of the sampling results. The corrugated pipe 711 adopts a double inner sleeve and outer sleeve structure with corrugated joints, which is conducive to increasing the compensation amount, reducing the thickness of the corrugated joints, and improving the axial stiffness, thereby playing a vibration reduction role and mitigating the impact of the vibration of the waveform drill bit 522 on the receiving mechanism 8. At the same time, the corrugated pipe 711 can use the vibration of the waveform drill bit 522 in the opposite direction to accelerate the transmission of the sample within the corrugated pipe 711. The vibration plays a role in preventing the corrugated pipe 711 from clogging during this process.

[0053] An adjustment mechanism 6 is provided between the sampling mechanism 5 and the collection mechanism 7. The adjustment mechanism 6 includes a second electric telescopic rod 601 fixed at the center of the top of the fixed plate 518. A cross steel ring 602 is fixed at the top of the second electric telescopic rod 601. A second pull rod 604 is movably connected to the cross steel ring 602. A second collar 603 is integrally formed at both ends of the second pull rod 604. The second pull rod 604 is movably connected to the cross steel ring 602 by being sleeved on the cross steel ring 602 through the upper second collar 603. A hanging ear 606 is sleeved on the lower second collar 603. There are two hanging ears 606. A sleeve 605 is integrally formed between the two hanging ears 606. The sleeve 605 is sleeved on the first pull rod 510. A third collar 607 is sleeved on the other hanging ear 606. A third pull rod 608 is integrally formed on the third collar 607. The third pull rod 608 is rotatably connected to the second fixed block 703.

[0054] In this embodiment, the second electric telescopic rod 601 is electrically connected to the control panel 4, and both are existing technologies. The cross steel ring 602 moves up and down with the extension and retraction of the second electric telescopic rod 601. The second pull rod 604 moves with the cross steel ring 602 via the second collar 603. The sleeve 605 slides on the first pull rod 510 via the lug 606 and the second collar 603. The third pull rod 608 moves with the sleeve 605 via the third collar 607 and the lug 606. The second fixing block 703 rotates up or down with the third pull rod 608. The movable stop frame 705 and the fixed stop frame 706... 01 moves with the third pull rod 608, the rotating part 515 rotates on the rotating shaft 514 with the fixed baffle 701, the wave drill bit 522 rotates with the rotating part 515 to adjust the alignment angle, the rotation of the rotating arm 523 and the rotating part 515 can change the height of the sampling point, the height between the three sampling mechanisms 5 can be adjusted separately to adapt to soil layers of different thicknesses, and the spacing between the four wave drill bits 522 can be reduced or expanded by rotating upward or downward to adapt to the inner diameter specifications of oil sampling wells of different specifications. The wave drill bit 522 can be vertically aligned with the inner wall of the soil layer to improve the soil breaking efficiency.

[0055] The collection mechanism 7 is equipped with a storage mechanism 8, which includes a fixed frame 801 located below the vibrating plate 520 inside the body 3. A connecting frame 802 is fixed to the front end of the fixed frame 801. The inner wall of the connecting frame 802 is adapted to the connecting plate 712. A storage basket 804 is placed inside the fixed frame 801. A limiting strip 808 is fixed inside the storage basket 804. A baffle 806 slides between the limiting strip 808 and the storage basket 804. Through holes communicating with the corrugated pipe 711 are opened on the storage basket 804, the connecting frame 802 and the fixed frame 801.

[0056] In this embodiment, the corrugated pipe 711 can slide from top to bottom into the connecting frame 802 through the connecting plate 712, and then be installed and fixed by screwing in the screws. The sample enters the storage basket 804 through the corrugated pipe 711. After sampling, the storage basket 804 can be taken out separately. The baffle 806 can slide down within the limiting strip 808 and the fixed frame 801 to block the through hole of the storage basket 804 to prevent the sample from leaking out. The storage basket 804 can then be taken out for subsequent sample testing. The detachable storage basket 804 allows the sample to be taken away for testing directly. The corrugated pipe 711, the fixed channel 708, and the movable wall 706 can all be removed, which facilitates cleaning after sampling and improves the accuracy of subsequent sampling results. The detachable parts facilitate maintenance and replacement and reduce costs.

[0057] A second magnetic plate 807 is fixed to the lower side of the baffle 806 that contacts the storage basket 804. A first magnetic plate 803 is fixed to the inner wall of the fixed frame 801 above the through hole. The first magnetic plate 803 and the second magnetic plate 807 are slidably connected. A handle 805 is fixed to the top of the storage basket 804 near the connecting frame 802.

[0058] In this embodiment, during the process of inserting the storage basket 804 into the fixing frame 801 from top to bottom, the first magnetic plate 803 and the second magnetic plate 807 attract each other, and the baffle 806 is magnetically fixed above the through hole along with the second magnetic plate 807. When the storage basket 804 is taken out, the storage basket 804 moves upward, and the position of the baffle 806 remains unchanged, so that the baffle 806 moves downward relative to block the through hole. The opening and blocking of the through hole by the baffle 806 is achieved by magnetic attraction, which is convenient for operation.

[0059] The positioning mechanism 1 is provided with adjustment and fixing mechanisms 2 on both the front and rear sides. The adjustment and fixing mechanisms 2 include a rotating rod 201, with a grounding plate 202 rotatably connected to the bottom end of the rotating rod 201, and a ground cone 203 passing through the top of the grounding plate 202.

[0060] In this embodiment, the grounding plate 202 is brought into contact with the flat ground, and the rotation angle of the rotating rod 201 is adjusted according to the height difference of the ground to keep the positioning mechanism 1 horizontal, so that the body 3 can be vertical in the sampling well. After the adjustment is completed, the ground cone 203 is nailed in to fix it, which can adapt to more ground height differences.

[0061] The positioning mechanism 1 includes two symmetrical slide rails 101. A threaded rod 102 is rotatably connected inside the slide rail 101. A knob 103 is fixed at one end of the threaded rod 102. A slider 104 is threadedly connected to the threaded rod 102. A first electric telescopic rod 106 is rotatably connected to the top of the slider 104. A fixed seat 107 is rotatably connected to the upper end of the first electric telescopic rod 106. The upper part of the machine body 3 is vertically mounted on the fixed seat 107. The machine body 3 is fixedly connected to the fixed seat 107. The rotating rod 201 is rotatably connected to the slide rail 101.

[0062] In this embodiment, the height of the fixed base 107 changes with the extension and retraction of the first electric telescopic rod 106. When the knob 103 is rotated, the threaded rod 102 rotates with the knob 103. The slider 104, under the limit of the slide rail 101, generates threaded transmission with the threaded rod 102. The slider 104 can move linearly left and right. Through the rotation of the first electric telescopic rod 106, the fixed base 107 changes height with the first electric telescopic rod 106, and the body 3 changes height with the fixed base 107. This allows the body 3 to still change height after the ground cone 203 is installed, avoiding repeated disassembly and assembly of the ground cone 203 which would damage the soil layer. Damage to the soil layer would reduce the operational stability of the body 3. After fixing, the height can still be adjusted without moving the ground cone 203, maintaining stability and facilitating operation.

[0063] The threaded rod 102 and the slide rail 101 are rotatably connected by the bearing 105. In this embodiment, the bearing 105 is a damping bearing. When the threaded rod 102 rotates with the knob 103, the movable end of the bearing 105 rotates with the threaded rod 102, while the fixed end remains relatively stationary with the slide rail 101. This makes the rotation of the threaded rod 102 smoother, and its damping property allows the angle to stop after rotation, thus improving stability.

[0064] The working principle of this invention is as follows: The ground contact plate 202 is brought into contact with the ground. The rotation angle of the rotating rod 201 is adjusted according to the ground elevation difference to keep the positioning mechanism 1 horizontal, thus allowing the machine body 3 to be vertically positioned within the sampling well. After adjustment, the ground cone 203 is driven in for fixation. The height of the fixing seat 107 changes with the extension and retraction of the first electric telescopic rod 106. Rotating the knob 103 causes the threaded rod 102 to rotate, and the slider 104, limited by the slide rail 101, generates threaded transmission with the threaded rod 102. The slider 104 can move linearly left and right. Through the rotation of the first electric telescopic rod 106, the fixing seat 107 changes height with the first electric telescopic rod 106, and the machine body 3 changes height with the fixing seat 107, allowing the machine body 3 to remain at a height adjustable even after the ground cone 203 is installed. When the position of the wave drill bit 522 needs to be adjusted within a small range, the motor 502 drives the lead screw 503 to rotate. The slide rod 505 passes through the double-hole sliding plate 506 to prevent it from rotating with the lead screw 503. The limiting effect of the slide rod 505 causes the double-hole sliding plate 506 and the lead screw 503 to generate a threaded transmission rod, realizing the vertical linear movement of the double-hole sliding plate 506 between the first mounting plate 501 and the second mounting plate 504. The connecting rod 507 moves with the double-hole sliding plate 506. The round block 508 and the ring 509 both move with the connecting rod 507. The first pull rod 510 moves with the ring 509 through the first collar 511. The rotating shaft 514 moves with the first pull rod 510 through the fixed ring 513, the connecting bent rod 512 and the connecting round plate 524. The rotating arm 523 moves with the rotating shaft 510. 14 drives the rotating wheel 521 to rotate on the vibrating plate 520. The wave drill bit 522 achieves a small range of height adjustment with the rotating shaft 514 via the rotating part 515. The wave drill bit 522 can also adjust the sampling alignment angle of the drill bit via the adjusting mechanism 6. The cross steel ring 602 moves up and down with the extension and retraction of the second electric telescopic rod 601. The second pull rod 604 moves with the cross steel ring 602 via the second collar 603. The sleeve 605 slides on the first pull rod 510 via the lug 606 and the second collar 603. The third pull rod 608 moves with the sleeve 605 via the third collar 607 and the lug 606. The second fixed block 703 rotates up or down with the third pull rod 608. The movable stop frame 705 and the fixed stop frame 701 move with the third pull rod 608. Part 515 rotates on the rotating shaft 514 along with the fixed stop frame 701. The wave-shaped drill bit 522 rotates with the rotating part 515 to adjust the alignment angle. The rotation of the rotating arm 523 and the rotating part 515 can change the height of the sampling point. The height between the three sampling mechanisms 5 can be adjusted separately to adapt to soil layers of different thicknesses. The vibration motor 519 drives the vibrating plate 520 to vibrate, and the wave-shaped drill bit 522 indirectly vibrates with the vibrating plate 520. After receiving the vibration transmitted by the vibration motor 519, the unique wave structure of the wave-shaped drill bit 522 begins to disturb and break the soil layer. The vibration weakens the binding force between soil particles, making them easier to break and penetrate by the drill bit. Moreover, one vibration motor 519 drives the wave-shaped drill bit 522 at multiple angles on the horizontal plane to perform soil breaking and sampling.To increase the number of sampling points in the same soil layer, and to prevent vibration from affecting the power source for adjusting the height, the gap between the first ring 511 and the circular ring 509 is reduced during vibration. Before sampling, the inner walls of the sampling opening are excavated to be flat. The fixed channel 708 is embedded in the second positioning groove 709 and fixed with bolts. The movable wall 706 is embedded in the first positioning groove 707 and fixed with bolts. The fixed channel 708 and the movable wall 706 form a channel for the co-directional transmission cylinder 710. The wave drill bit 522 contacts the soil layer through the sampling mechanism 5 and the adjusting mechanism 6. At this time, the movable stop frame 705 is in the spring 704. As the second fixed block 703 contacts the well wall under restoring force, the corrugated drill bit 522, through the vibration motor 519, breaks the soil and takes samples. The fixed baffle 701 and the movable baffle 705 shield the top and sides of the corrugated drill bit 522, allowing the soil sample to pass sequentially through the fixed channel 708, the transmission cylinder 710, and the corrugated pipe 711 into the receiving mechanism 8. The enclosing fixed baffle 701 and the movable baffle 705 prevent the surrounding soil breaking work from affecting the soil particles on the sample, improving the sample purity and the accuracy of the sampling results. Furthermore, the corrugated pipe 711 adopts a double inner sleeve and outer sleeve structure with corrugated joints. This design facilitates increased compensation, reduced corrugated section thickness, and improved axial stiffness, thereby achieving vibration reduction and mitigating the impact of the corrugated drill bit 522's vibration on the storage mechanism 8. Simultaneously, the corrugated tube 711 can utilize the vibration of the corrugated drill bit 522 to accelerate the transfer of the sample within the tube. The vibration also helps prevent blockage in the tube 711. The corrugated tube 711 slides from top to bottom into the connecting frame 802 via the connecting plate 712, and is then fixed in place by screws. The sample enters the storage basket 804 through the corrugated tube 711. After sampling, the storage basket can be removed separately. 804. The baffle 806 can slide down within the limiting strip 808 and the fixing frame 801 to block the through hole of the storage basket 804, preventing sample leakage. The storage basket 804 can then be removed for subsequent sample testing. The detachable storage basket 804 allows for direct sample removal for testing. During the process of inserting the storage basket 804 into the fixing frame 801 from top to bottom, the first magnetic plate 803 and the second magnetic plate 807 attract each other, and the baffle 806 is magnetically fixed above the through hole along with the second magnetic plate 807. When the storage basket 804 is removed, the storage basket 804 moves upward, while the position of the baffle 806 remains unchanged, achieving a relative downward movement of the baffle 806 to block the through hole.

[0065] In summary, the sampling mechanism enables multi-angle sampling on the same horizontal plane, thereby improving the accuracy of sampling results.

[0066] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A petroleum distribution sampling device for petroleum development, comprising a positioning mechanism, characterized in that, The positioning mechanism is equipped with a body, and a control panel is fixed to the top of the body. Three sampling mechanisms are installed inside the body. Each sampling mechanism includes a first mounting plate and a second mounting plate fixed inside the body. A motor is fixed to the top corner of the first mounting plate, and a lead screw is fixed to the motor output end. The lead screw rotates between the first and second mounting plates. A double-hole sliding plate is threaded onto the lead screw, and a sliding rod is vertically inserted through the double-hole sliding plate. The sliding rod is fixed between the first and second mounting plates. A connecting rod is fixed to the bottom of the double-hole sliding plate, and a circular block is fixed to the bottom of the connecting rod. Four rings are fixed to the bottom of the circular block. The machine is fitted with a first ring, on which a first pull rod is integrally formed. A fixed plate is fixed inside the machine body at a position below the circular block. A vibration motor is fixed at the bottom of the fixed plate. A vibration plate is fixed at the output end of the vibration motor. Rotary wheels are rotatably connected around the vibration plate. Rotary arms are fixed on the rotary wheels. A rotating shaft is fixed at the end of the rotary arm away from the rotary wheel. Fixed rings are fixed at both ends of the rotating shaft. Connecting bent rods are integrally formed on both fixed rings. A connecting circular plate is integrally formed between the two connecting bent rods. The connecting circular plate is fixedly connected to the first pull rod. A rotating component is fitted on the rotating shaft. A wave-shaped drill bit is fixed on the rotating component. The rotating shaft has washers and nuts fitted at both ends, and a rotating component is positioned between the washers and nuts. A collecting mechanism is provided on the rotating component. The collecting mechanism includes a fixed stop frame fixed to the rotating component, a wave-shaped drill bit located inside the fixed stop frame, and first fixing blocks fixed on three sides of the outer wall of the fixed stop frame. A movable stop frame is fitted at the end of the fixed stop frame away from the rotating component, and second fixing blocks are fixed on three sides of the outer wall of the movable stop frame. A spring is fixed between the second fixing blocks and the first fixing blocks. A second positioning groove is integrally formed on the lower part of the inner wall of the fixed stop frame, and a fixed channel is slidably connected within the second positioning groove. A first positioning groove is integrally formed on the lower part of the inner wall of the movable stop frame, and a movable wall is slidably connected within the first positioning groove, the movable wall contacting the inner wall of the fixed channel. A transmission cylinder is fixed at the bottom of the fixed channel. A corrugated pipe is fixed at the end of the transmission cylinder away from the fixed channel, and a connecting plate is fixed at the end of the corrugated pipe away from the transmission cylinder. A storage mechanism is provided on the connecting plate. An adjustment mechanism is provided between the sampling mechanism and the collection mechanism. The adjustment mechanism includes a second electric telescopic rod fixed at the center of the top of the fixed plate. A cross steel ring is fixed at the top of the second electric telescopic rod. A second pull rod is movably connected to the cross steel ring. Both ends of the second pull rod have a second collar integrally formed. The second pull rod is movably connected to the cross steel ring by being fitted onto the upper second collar. Two hanging ears are fitted onto the lower second collar. A sleeve is integrally formed between the two hanging ears. A sleeve is fitted onto the first pull rod, and a third collar is fitted onto another lug. A third pull rod is integrally formed on the third collar, and the third pull rod is rotatably connected to the second fixing block. The collecting mechanism is equipped with a storage mechanism, which includes a fixed frame fixed inside the machine body below the vibrating plate. A connecting frame is fixed to the front end of the fixed frame, and the inner wall of the connecting frame is adapted to the connecting plate. A storage basket is placed inside the fixed frame, and a limit strip is fixed inside the storage basket. A baffle slides between the limit strip and the storage basket. Through holes communicating with the corrugated pipe are opened on the storage basket, the connecting frame, and the fixed frame. A second magnetic plate is fixed lower on the side of the baffle that contacts the storage basket, and a first magnetic plate is fixed on the inner wall of the fixed frame above the through hole. A magnetic plate is slidably connected to a second magnetic plate, and a handle is fixed to the top of the storage basket near the connecting frame. Adjustment and fixing mechanisms are provided on both the front and rear sides of the positioning mechanism. Each adjustment and fixing mechanism includes a rotating rod, with a base plate rotatably connected to the bottom of the rotating rod, and a ground cone passing through the top of the base plate. The positioning mechanism includes two symmetrical slide rails, with a threaded rod rotatably connected inside each slide rail. A knob is fixed to one end of the threaded rod, and a slider is threaded onto the threaded rod. A first electric telescopic rod is rotatably connected to the top of the slider, and a fixed seat is rotatably connected to the upper end of the first electric telescopic rod. The upper part of the machine body is vertically mounted on the fixed seat, and the machine body is fixedly connected to the fixed seat. The rotating rod is rotatably connected to the slide rail. The threaded rod and the slide rail are rotatably connected via bearings. When a small-range adjustment of the waveform drill bit position is required, the motor drives the lead screw to rotate. A sliding rod, passing through a double-hole sliding plate, prevents the lead screw from rotating with the sliding rod. The limiting effect of the sliding rod causes the double-hole sliding plate and the lead screw to generate a threaded transmission rod, enabling the double-hole sliding plate to move linearly up and down between the first and second mounting plates. The connecting rod moves with the double-hole sliding plate, and the circular block and ring both move with the connecting rod. The first pull rod moves with the ring via the first collar. The rotating shaft moves with the first pull rod via the fixed ring, connecting bent rod, and connecting circular plate. The rotating arm drives the rotating wheel to rotate on the vibrating plate. The waveform drill bit achieves a small-range height adjustment via the rotating component and the rotating shaft. Furthermore, the waveform drill bit's sampling alignment angle can be adjusted via an adjustment mechanism. The vibration motor drives the vibrating plate to vibrate. The wave-shaped drill bit vibrates indirectly along with the vibrating plate. After receiving the vibration transmitted by the vibrating motor, the unique wave structure of the wave-shaped drill bit begins to disturb and break up the soil layer. The vibration weakens the binding force between soil particles, making them easier to break and penetrate. A single vibrating motor drives the wave-shaped drill bit at multiple angles on the horizontal plane to break the soil and sample, increasing the number of sampling points in the same soil layer. During vibration, the gap between the first ring and the circular ring prevents the vibration from affecting the power source for adjusting the height. This not only enables fine-tuning of the sampling point height but also increases the number of samples in the same layer, making the test results more representative and avoiding the influence of special impurities at a certain sampling point in the same layer, thus improving the accuracy of the sampling test results.

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