Soil layer sampling device for oil exploitation

Abstract

The utility model relates to the field of oil exploitation, and particularly discloses a soil layer sampling device for oil exploitation, which comprises a guide head, a vertical beam is arranged at the upper end of the guide head, a cross beam is arranged at the top of the vertical beam, a lifting lug is arranged at the top of the cross beam, and a main shaft is rotatably connected between the cross beam and the guide head. A motor for driving the main shaft is arranged on the vertical beam; a sampling mechanism is arranged between the cross beam and the guide head and comprises a supporting plate, a worm, a worm gear and a material receiving box, the supporting plate is fixedly connected with the vertical beam, the worm is rotationally connected to the supporting plate, a drill bit is arranged at one end of the worm, the other end of the worm is in threaded connection with a sliding block, and the sliding block is in sliding connection with the supporting plate; the worm gear is installed on the main shaft and meshed with the worm, and the material receiving box is connected to the lower portion of the supporting plate in a sliding mode. When the drill bit is used for drilling and sampling, axial supporting force can be generated on the drill bit, so that the drill bit is convenient to drill and sample.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of oil exploitation, concretely is a kind of soil sampling device for oil exploitation. BACKGROUND

[0002] Patent No. ZL202311344539.4 discloses a kind of oil exploitation equipment for oil distribution sampling, it can be drilled to sample in well soil, it is mainly by motor drives the drill bit arranged transversely to drill sample, however, when sampling, drill bit drills into soil layer and is needed to drill into soil layer by axial force pushing, and the equipment cannot directly axial force pushing drill bit, therefore, drilling speed is slow, and drill bit cannot be directly axially pushed to drill into soil layer, also easily lead to drill bit inclination skid, and drilling sampling effect is poor. SUMMARY

[0003] The utility model discloses to the defects existing in prior art, provide a kind of soil sampling device for oil exploitation, it can produce axial support force to drill bit when drilling into soil layer to sample, to facilitate drill bit drilling into soil layer to sample.

[0004] The technical scheme of the utility model is: a kind of soil sampling device for oil exploitation, including guide head, the upper end of the guide head is equipped with vertical beam, the top of the vertical beam is equipped with crossbeam, the top of the crossbeam is equipped with lug, main shaft is rotatably connected between the crossbeam and guide head, motor is equipped on the vertical beam and drives main shaft;

[0005] Sampling mechanism is equipped between the crossbeam and guide head, the sampling mechanism includes support plate, worm, worm wheel and receiving box, the support plate is fixedly connected with vertical beam, the worm is rotatably connected on support plate, one end of the worm is equipped with drill bit, and the other end is threadedly connected with sliding block, the sliding block is slidably connected with support plate, the worm wheel is installed on main shaft and is engaged with worm, the receiving box is slidably connected below support plate for receiving soil sample drilled by drill bit.

[0006] Preferably, the main shaft and motor are drivingly connected through a reduction gear set.

[0007] Preferably, multiple groups of sampling mechanisms are provided between the crossbeam and guide head.

[0008] Preferably, the bottom of the sliding block is provided with an elongated guide slot, and the support plate is provided with a guide block extending into the guide slot and slidably engaged with the guide slot.

[0009] Compared with the prior art, the utility model has the following advantages: The utility model simple and reasonable structure, through motor drive worm gear assembly can drive the drill bit rotation, can produce supporting force to the drill bit through the sliding support well wall of thread cooperation, thereby convenient for the drill bit drilling sampling, the soil sample drilled falls into the receiving box, and along with the drill bit drilling into the well wall, the receiving box outer edge end contacts the well wall, pushes the receiving box sliding, and closes the receiving box top opening by using the supporting plate. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is the structure schematic view of the utility model in example 1;

[0011] Figure 2 It is the structure schematic view of the sampling mechanism;

[0012] Figure 3 It is the structure schematic view of the utility model in example 2;

[0013] In the drawing: 1, stand beam, 2, lifting lug, 3, crossbeam, 4, reduction gear set, 5, motor, 6, drill bit, 7, main shaft, 8, sliding block, 9, worm, 10, worm wheel, 11, supporting plate, 12, guide head, 13, receiving box, 14, guide groove, 15, guide block, 16, sampling mechanism. DETAILED DESCRIPTION

[0014] The utility model is further described below in connection with the drawings and examples. Example 1

[0015] As Figure 1 A soil sampling device for oil exploitation, including conical guide head 12, the upper end of guide head 12 is fixedly connected with stand beam 1, the top of stand beam 1 is fixedly connected with crossbeam 3, and crossbeam 3 is installed with lifting lug 2 on the top.

[0016] Crossbeam 3 is rotatably connected with main shaft 7 between guide head 12, and motor 5 for driving main shaft 7 is arranged on stand beam 1, and main shaft 7 is drivingly connected with motor 5 through reduction gear set 4.

[0017] Crossbeam 3 and guide head 12 are equipped with sampling mechanism 16, as Figure 2 Sampling mechanism 16 includes supporting plate 11, worm 9, worm wheel 10 and receiving box 13, supporting plate 11 is fixedly connected with stand beam 1, and through hole for main shaft 7 is arranged on supporting plate 11.

[0018] Worm 9 is rotatably connected on supporting plate 11 through a pair of rotating seats, one end of worm 9 is fixedly connected with coaxially arranged drill bit 6, the other end of worm 9 is provided with threaded extension part, and sliding block 8 is threadedly connected.

[0019] The sliding block 8 is in sliding connection with the support plate 11, and the sliding direction is the same as the axis direction of the worm 9, and the specific sliding connection structure is that a long strip-shaped guide groove 14 is formed in the bottom of the sliding block 8, and the support plate 11 is provided with a guide block 15 which extends into the guide groove 14 and is in sliding cooperation with the guide groove 14.

[0020] The worm wheel 10 is installed on the main shaft 7 and is in meshing cooperation with the worm 9, and the receiving box 13 is in sliding connection below the support plate 11 and is used for receiving the soil sample drilled by the drill bit 6.

[0021] Working principle:

[0022] In use, the lifting lug 2 is connected with a sampling rod or a lifting rope, then the receiving box 13 is pulled out, then the device is lowered to the sampling position in the well, then the motor 5 is started, the motor 5 drives the drill bit 6 to drill the soil sample of the well wall through the worm wheel 10 and the worm 9;

[0023] At the same time, the sliding block 8 which is in threaded connection with the worm 9 moves outward under the driving of the rotation of the worm 9, when the outer edge end of the sliding block 8 contacts the well wall, a supporting force is generated to the drill bit 6, so that the drill bit 6 is pushed to drill the sample, and the drilled soil layer debris falls into the receiving box 13. Embodiment 2

[0024] This embodiment is further optimized on the basis of the above-mentioned embodiment, and specifically:

[0025] As Figure 3 A plurality of groups of sampling mechanisms 16 are arranged between the cross beam 3 and the guide head 12, and the soil samples at different position heights in the well can be drilled at the same time through the plurality of groups of sampling mechanisms 16 arranged in an up-down interval, so that the cumbersome steps of taking one position height at a time are avoided, and the sampling efficiency is higher.

[0026] The utility model discloses simple and reasonable structure, through motor 5 drive worm wheel 10 worm 9 assembly can drive drill bit 6 rotation, also can through the sliding support of screw thread cooperation to drill bit 6 produce supporting force, thereby facilitate drill bit 6 drill the sample, and the drilled soil sample falls into receiving box 13, and along with drill bit 6 drilling the well wall, receiving box 13 outer edge end contacts the well wall, then push receiving box 13 slide, and utilize support plate 11 to close receiving box 13 top opening.

[0027] The utility model discloses simple and reasonable structure, through motor 5 drive worm wheel 10 worm 9 assembly can drive drill bit 6 rotation, also can through the sliding support of screw thread cooperation to drill bit 6 produce supporting force, thereby facilitate drill bit 6 drill the sample, and the drilled soil sample falls into receiving box 13, and along with drill bit 6 drilling the well wall, receiving box 13 outer edge end contacts the well wall, then push receiving box 13 slide, and utilize support plate 11 to close receiving box 13 top opening.

[0027] The utility model discloses simple and reasonable structure, through motor 5 drive worm wheel 10 worm 9 assembly can drive drill bit 6 rotation, also can through the sliding support of screw thread cooperation to drill bit 6 produce supporting force, thereby facilitate drill bit 6 drill the sample, and the drilled soil sample falls into receiving box 13, and along with drill bit 6 drilling the well wall, receiving box 13 outer edge end contacts the well wall, then push receiving box 13 slide, and utilize support plate 11 to close receiving box 13 top opening.

Claims

1. A soil sampling device for use in oil exploration comprising a pilot head characterised in that: The upper end of the guide head is provided with a vertical beam, the top of the vertical beam is provided with a cross beam, the top of the cross beam is provided with a lifting lug, a main shaft is rotatably connected between the cross beam and the guide head, and a motor for driving the main shaft is arranged on the vertical beam; A sampling mechanism is arranged between the cross beam and the guide head, the sampling mechanism comprises a supporting plate, a worm, a worm wheel and a receiving box, the supporting plate is fixedly connected with the vertical beam, the worm is rotatably connected on the supporting plate, one end of the worm is provided with a drill bit, the other end of the worm is threadedly connected with a sliding block, the sliding block is slidably connected with the supporting plate, the worm wheel is installed on the main shaft and is engaged with the worm, and the receiving box is slidably connected below the supporting plate and is used for receiving the soil sample drilled by the drill bit.

2. The soil sampling device for use in oil exploration according to claim 1, characterized in that: The main shaft is drivingly connected with the motor through a speed reduction gear set.

3. The soil sampling device for use in oil exploration of claim 1, wherein: A plurality of groups of sampling mechanisms are arranged at intervals between the cross beam and the guide head.

4. The soil sampling device for use in oil exploration of claim 1, wherein: The bottom of the sliding block is provided with an elongated guide groove, and the supporting plate is provided with a guide block extending into the guide groove and slidably matched with the guide groove.

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