Ecological environment-friendly oil field stratum soil detection sampling device

Abstract

The utility model relates to the technical field of ecological environment-friendly soil detection, in particular to an ecological environment-friendly oil field stratum soil detection sampling device. Guide frames are arranged on the two sides of the upper end of the sampling barrel, a pedal used for assisting insertion of the sampling barrel is inserted between the guide frames on the two sides, a movable ring is arranged on the sampling barrel in a sliding mode, at least two expansion plates are arranged on the movable ring in the circumferential direction, insertion rods are arranged at the tail ends of the expansion plates in a threaded mode, and conical ends are arranged at the bottom ends of the insertion rods; a limiting ring for limiting the moving range of the moving ring is arranged on the lower side of the sampling barrel. Through the ingenious combination design of a movable ring, an expansion plate and an insertion rod, it is effectively ensured that the direction and position of the sampling barrel in the soil insertion process are more accurate, the position of the device can be fixed in advance, and deviation caused by external force interference or manual misoperation is remarkably reduced; in addition, the arrangement of the pedal is combined with a treading force-borrowing mode, so that the operation difficulty is remarkably reduced, the working efficiency is greatly improved, and the labor intensity is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of oil exploitation geological survey technology, especially to an oilfield geological layer detection sampling device, which is suitable for rapid and accurate sampling of oil-containing soil, drilling cuttings and oil and gas contaminated areas. BACKGROUND

[0002] In the process of oil exploitation and oilfield environmental monitoring, geological layer sampling is a key technical link for evaluating oil and gas reservoir characteristics, detecting soil oil pollution diffusion, and judging underground pipeline leakage. Especially in the vicinity of oil wells, refinery areas, and along oil pipelines, the soil often contains high-viscosity crude oil residues, sulfidation corrosive substances, and fracturing proppant particles. During soil sampling, one of the commonly used equipment is a soil sampler. The soil sampler can quickly collect soil samples by directly inserting the sampling container into the ground. However, this method has some obvious shortcomings in actual operation:

[0003] 1. Sampling direction and position are difficult to accurately control: oil-contaminated areas often require stratified sampling to track the depth of oil penetration, and existing soil samplers lack reliable positioning structures, which can easily cause sampling cylinder deviation in oil-containing viscous soil, leading to cross-contamination of samples at different depths, seriously affecting the accuracy of oil pollution distribution analysis.

[0004] 2. Soil texture differences make operation difficult: First, hard geological environments such as drilling cuttings accumulation areas and fracturing proppant backfill layers have very high impact requirements for sampling equipment. Manual pressure on the sampling cylinder can easily cause the cylinder to tilt or even damage due to uneven force, and frequent operation can easily cause worker fatigue, making it difficult to meet the large-scale monitoring needs of oilfields. Second, the strong adhesion of oil-contaminated soil can cause scaling on the inner wall of the sampling cylinder, and the resistance of the traditional push rod type pressure piece increases dramatically when pushing out the oil-containing sample, often requiring external tools to knock, which poses a risk of sample scattering and data loss.

[0005] Therefore, it is necessary to design an ecological and environmentally friendly soil detection sampling device with positioning and leverage functions to assist sampling work and solve the shortcomings of existing sampling methods in terms of operation accuracy and efficiency. UTILITY MODEL CONTENTS

[0006] In order to overcome the shortcomings of the prior art, the utility model provides an ecological and environmentally friendly soil detection sampling device with positioning and leverage functions.

[0007] The technical implementation scheme of the utility model discloses an ecological and environment-friendly oilfield stratum soil detection sampling device, which comprises a sampling cylinder, a pressing piece, an extension rod, a supporting plate, a handle ring, a guide frame, a pedal, a moving ring, an expansion plate, a plug rod, a limiting ring and a positioning plate, the bottom end of the sampling cylinder is provided with a downwardly extending positioning plate, and the pressing piece is arranged in the sampling cylinder in a through sliding mode, the top end of the pressing piece is provided with the extension rod, both sides of the top of the extension rod are provided with the supporting plate, the distal ends of the supporting plates are provided with the handle rings for holding operation, both sides of the upper end of the sampling cylinder are provided with the guide frames, the pedal for assisting insertion into the sampling cylinder is arranged between the two guide frames, the moving ring is arranged on the sampling cylinder in a sliding mode, at least two expansion plates are arranged on the moving ring in a circumferential direction, the plug rods are arranged on the distal ends of the expansion plates in a threaded mode, the bottom end of the plug rod is provided with a tapered end, and the lower side of the sampling cylinder is provided with the limiting ring for limiting the moving range of the moving ring.

[0008] More preferably, the pressing piece comprises a pressing plate and a threaded rod, the bottom end of the pressing piece is provided with the pressing plate located in the sampling cylinder, the pressing plate is adapted to the inner diameter of the sampling cylinder, and the top end of the pressing piece is provided with the threaded rod, the extension rod is threadedly connected with the threaded rod.

[0009] More preferably, the handle rings are provided with fastening rings arranged at intervals on the surfaces of the handle rings.

[0010] More preferably, the plug rods are provided with twist blocks arranged at the top ends of the plug rods.

[0011] More preferably, the sampling cylinder is provided with plug teeth arranged in a circumferential direction at the bottom end of the sampling cylinder for assisting insertion operation.

[0012] More preferably, the sampling cylinder is provided with a scale bar for observing the depth of the sampled soil.

[0013] Compared with the prior art, the utility model has the following advantages: through the cooperation of the positioning plate and the plug rod, the vertical pre-fixing of the sampling cylinder in the oil-containing viscous soil can be realized, the scale bar depth mark is combined to ensure the accurate positioning of the key geological interfaces such as oil pollution penetration layer and fracturing support backfill layer, and the interlayer sample cross-contamination is avoided; the pedal leverage structure and the plug teeth design are matched, so that the staff can apply concentrated impact force to the sampling cylinder through foot stepping, the penetration efficiency of the rock debris accumulation layer and the hardened oil pollution soil is significantly improved, the manual operation strength is reduced, and the high-intensity operation demand of the oilfield field is met; the close adaptation design of the pressing plate and the inner wall of the sampling cylinder is combined with the threaded rod adjustable extension rod structure, the uniform pushing force can be applied to the high-viscosity oil-containing soil sample, the sample structure damage caused by the traditional knocking method is avoided, and the integrity of the key data such as oil-water ratio and pollutant distribution is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1The utility model discloses a three-dimensional structure schematic view.

[0015] Figure 2 The utility model discloses a three-dimensional structure sectional view of down pressure spare, extension rod and pedal and other parts.

[0016] Figure 3 The utility model discloses a three-dimensional structure schematic view of mobile ring, expansion board and insert rod and other parts.

[0017] Figure 4 The utility model discloses a three-dimensional structure schematic view of sampling cylinder, limit ring, positioning plate and gear cutting.

[0018] The marking of each spare in the drawing is as follows: 1, sampling cylinder, 101, scale bar, 2, down pressure spare, 201, pressing plate, 202, threaded rod, 3, extension rod, 301, support plate, 302, holding ring, 303, fastening ring, 4, guide frame, 5, pedal, 6, mobile ring, 7, expansion board, 8, insert rod, 801, screw block, 802, conical end, 9, limit ring, 10, positioning plate, 11, gear cutting. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be described clearly and completely below, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the range of the utility model protection.

[0020] Embodiment: an ecological environmental protection oilfield stratum soil detection sampling device, such as Figures 1-4As shown, including a sampling cylinder 1, a pressing piece 2, an extension rod 3, a support plate 301, a handle ring 302, a guide frame 4, a pedal 5, a moving ring 6, an expansion plate 7, a plug rod 8, a limiting ring 9 and a positioning plate 10, the sampling cylinder 1 is a hollow cylinder with an open bottom, used for extracting and containing soil detection samples, the bottom end of the sampling cylinder 1 is provided with a downward extending positioning plate 10, the positioning plate 10 is designed in an arc shape, the front side is concave, which makes the positioning plate 10 more smooth when inserted into the soil, the concave structure not only effectively reduces the insertion resistance, but also enhances the contact stability with the soil, thereby realizing the accurate positioning of the sampling area. Before the sampling work starts, the positioning plate 10 is inserted into the soil first, fixing the sampling area of the device in advance, significantly reducing the positional deviation caused by shaking or tilting, ensuring the accuracy and reliability of the subsequent sampling operation, and the inside of the sampling cylinder 1 is provided with a downward pressing piece 2, the top end of the pressing piece 2 is provided with an extension rod 3, the top of the extension rod 3 is provided with a support plate 301 on both sides, the connection design of the extension rod 3 and the pressing piece 2, combined with the reinforcing effect of the support plate 301, ensures the structural stability of the entire device during operation, the ends of the support plate 301 are provided with handle rings 302 for holding operation, when operating, by holding the handle rings 302 and applying force, the pressing piece 2 is pushed up and down, thereby smoothly pushing out the soil sample inside the sampling cylinder 1, the left and right sides of the upper end of the sampling cylinder 1 are provided with guide frames 4, the pedal 5 for assisting the insertion of the sampling cylinder 1 is inserted between the two guide frames 4, the pedal 5 is provided with a friction plate on the top surface, which can increase the contact friction force during operation, the staff can more easily press the sampling cylinder 1 into the soil by stepping on the pedal 5, especially when facing hard soil, significantly reducing the operation difficulty and improving the work efficiency, the moving ring 6 is slidably arranged on the sampling cylinder 1, the moving ring 6 can slide in the upward and downward direction of the sampling cylinder 1, three expansion plates 7 are arranged on the moving ring 6 in the circumferential direction, plug rods 8 are threadedly arranged at the ends of the expansion plates 7, by rotating the plug rods 8, the position of the plug rods 8 on the expansion plates 7 can be adjusted, thereby controlling the depth of the plug rods 8 inserted into the soil, thereby effectively limiting the sampling position of the device as a whole, the bottom end of the plug rod 8 has a tapered end 802, which can facilitate smooth insertion into the soil, and the limiting ring 9 for limiting the movement range of the moving ring 6 is arranged at the lower side of the sampling cylinder 1, effectively preventing the moving ring 6 from sliding too much, ensuring the operation stability of the device.

[0021] As Figure 1 and 2As shown, the lower pressing piece 2 comprises a pressing plate 201 and a threaded rod 202. The bottom end of the rod body of the lower pressing piece 2 is provided with the pressing plate 201 located in the sampling cylinder 1. The pressing plate 201 is adapted to the inner diameter of the sampling cylinder 1, ensuring uniform pressure on the soil sample in the sampling cylinder 1. The top end of the rod body of the lower pressing piece 2 is provided with the threaded rod 202. The extension rod 3 is threadedly connected with the threaded rod 202. When the extension rod 3 is rotated, the extension rod 3 can move up and down under the action of threads, and the distance between the extension rod 3 and the lower pressing piece 2 can be flexibly adjusted. At the same time, this connection mode supports quick disassembly and assembly, facilitating subsequent cleaning and maintenance operations.

[0022] As shown in Figure 2 The fastening ring 303 is arranged on the surface of the handle ring 302 at intervals. The fastening ring 303 can enhance the gripping stability during operation and prevent hand slipping.

[0023] As shown in Figure 3 The twisting block 801 is arranged on the top end of the insertion rod 8. The operator can easily adjust the position and insertion depth of the insertion rod 8 by manually rotating the twisting block 801.

[0024] As shown in Figure 4 The sampling cylinder 1 is provided with the insertion teeth 11 at the bottom end for assisting insertion. The auxiliary device can be more smoothly inserted into the soil, especially when facing harder or more viscous soil, significantly reducing the insertion resistance.

[0025] As shown in Figure 1 The sampling cylinder 1 is provided with the scale bar 101 for observing the sampling soil depth. The scale bar 101 can be used to visually observe the depth of the sampling soil, ensuring that the sampling process meets the detection requirements.

[0026] In use, first, the soil sampling position is determined, and the pressing plate 201 is adjusted to the top end of the sampling cylinder 1. Then, the part of the tine 11 of the sampling cylinder 1 is aligned with the sampling point, the positioning plate 10 is inserted into the soil first, and then the tine 11 is inserted to stabilize the sampling position of the device. Next, the knob 801 is held and the insertion rod 8 is rotated, and the insertion rod 8 moves up and down along the expansion plate 7 under the action of the thread, so as to adjust the insertion depth of the insertion rod 8. After the adjustment is completed, the moving ring 6 is pushed down to slide along the sampling cylinder 1, driving the expansion plate 7 and the insertion rod 8 to move down synchronously, until the tapered end 802 of the insertion rod 8 contacts and inserts into the soil. The limiting ring 9 limits the downward movement range of the moving ring 6, ensuring the stability of the device. At this time, the worker can apply downward force to the expansion plate 7 by stepping or manually, further compacting the insertion of the insertion rod 8, so as to ensure the accuracy of the sampling position. Then, the pedal 5 is inserted between the two guide frames 4, and the worker applies force to the sampling cylinder 1 by stepping on the pedal 5, so as to press and insert the sampling cylinder 1 into the soil. The scale bar 101 is observed until the sampling cylinder 1 reaches the required sampling depth. After the sampling is completed, the device is pulled out of the soil as a whole. According to the use requirement, the extension rod 3 is rotated to move up and down along the threaded rod 202, so as to adjust the height between the extension rod 3 and the pressing member 2. After the adjustment is completed, the holding ring 302 is held and pushed down, driving the extension rod 3 and the pressing plate 201 to move down synchronously, and the soil sample in the sampling cylinder 1 is pushed out by the pressing plate 201, so as to complete the whole soil detection and sampling process.

[0027] Finally, it should be noted that: the above only describes the preferred embodiments of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. An ecological and environmentally friendly oilfield formation soil detection sampling device, comprising a sampling cylinder (1), a pressing piece (2), an extension rod (3), a support plate (301) and a handle ring (302), the bottom end of the sampling cylinder (1) is provided with a downward extending positioning plate (10), and the inside of the sampling cylinder (1) is provided with a pressing piece (2) in a through sliding manner, the top end of the pressing piece (2) is provided with an extension rod (3), the top of the extension rod (3) is provided with a support plate (301) on both sides, and the end of the support plate (301) is provided with a handle ring (302) for holding operation; characterized in that, It also includes guide frame (4), pedal (5), moving ring (6), expansion plate (7), plug rod (8), limit ring (9) and positioning plate (10), both sides of the upper end of the sampling cylinder (1) is provided with guide frame (4), both sides of the guide frame (4) is inserted with pedal (5) for assisting insertion of the sampling cylinder (1), the moving ring (6) is arranged on the sampling cylinder (1), the moving ring (6) is provided with at least two expansion plates (7) along the circumference, the expansion plate (7) is provided with plug rod (8) at the end, the bottom end of the plug rod (8) has a tapered end (802), and the lower side of the sampling cylinder (1) is provided with a limit ring (9) for limiting the moving range of the moving ring (6).

2. The ecological and environmental protection oilfield formation soil detection sampling device according to claim 1, characterized in that, It also includes a lower pressing piece (2) comprising a pressing plate (201) and a threaded rod (202), the bottom end of the lower pressing piece (2) is provided with a pressing plate (201) located in the sampling cylinder (1), the pressing plate (201) is matched with the inner diameter of the sampling cylinder (1), and the top end of the lower pressing piece (2) is provided with a threaded rod (202), the extension rod (3) is threadedly connected with the threaded rod (202).

3. The ecological and environmental protection oilfield formation soil detection sampling device according to claim 2, characterized in that, It also includes a fastening ring (303), and the surface of the handle ring (302) is arranged with fastening rings (303) at intervals.

4. The ecological and environmental protection oilfield formation soil detection sampling device according to claim 3, characterized in that, It also includes a twist block (801), and the top end of the plug rod (8) is provided with a twist block (801).

5. The ecological and environmental protection oilfield formation soil detection sampling device according to claim 4, characterized in that, It also includes a plug gear (11), and the bottom end of the sampling cylinder (1) is provided with a plug gear (11) for assisting insertion operation.

6. The ecological and environmental protection oilfield formation soil detection sampling device according to claim 5, characterized in that, It also includes a scale bar (101), and the sampling cylinder (1) is provided with a scale bar (101) for observing the sampling soil depth.

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