Deep-sea rock in-situ permeability testing equipment

Abstract

The utility model discloses in-situ permeability testing equipment for deep-sea rock, and belongs to the technical field of deep-sea rock testing equipment, the in-situ permeability testing equipment comprises an equipment body, the input end of the equipment body is electrically connected with a connecting pipe, and one end, far away from the equipment body, of the connecting pipe is electrically connected with a probe system; the installation mechanism comprises a protection shell, the protection shell is fixedly connected to the outer side of the probe system, a plurality of electric telescopic rods are installed on the side portion of the protection shell, and the output ends of the electric telescopic rods are fixedly connected with extrusion blocks. According to the utility model, by arranging the mounting mechanism and the limiting assemblies, the extrusion block can be directly contacted with the rock through the bag wall of the sealing bag, so that the extrusion block and the plurality of limiting blocks are in flexible extrusion contact with the rock through the bag wall of the extruded sealing bag and contents, the extrusion contact effect is ensured, and the rock is prevented from being damaged; the probe system can be stably fixed on a harder rock and a softer rock, and the installation adaptability of the probe system is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to deep sea rock testing equipment technical field especially relates to a kind of deep sea rock in situ permeability testing equipment. BACKGROUND

[0002] Deep sea rock in situ permeability testing equipment is a kind of deep sea rock testing equipment, is specially used to carry out in situ testing device to the permeability of rock under deep sea environment.The permeability of rock refers to the ability of fluid to pass through rock under certain pressure difference, when carrying out deep sea construction and other activities, the permeability data of rock need to be obtained, to better guide the work of activity.

[0003] When carrying out permeability test to deep sea rock, the existing probe structure is relatively fixed, cannot adapt to different hardness of rock, for the hard hard deep sea bedrock, contact effect is poor and is easy to affect the fixed stability of probe on rock, and for the relatively soft sedimentary rock, probe is easy to cause damage to rock structure, affects test efficiency. UTILITY MODEL CONTENT

[0004] The utility model discloses a kind of deep sea rock in situ permeability testing equipment, to solve the problem that traditional technology adapts to different hardness of rock, for the hard hard deep sea bedrock, contact effect is poor and is easy to affect the fixed stability of probe on rock.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A kind of deep sea rock in situ permeability testing equipment, comprising:

[0007] Device body, the device body input end electrically connected with connecting pipe, the connecting pipe is electrically connected with probe system away from device body one end;

[0008] Mounting mechanism, the mounting mechanism includes protective shell, the protective shell is fixedly connected on the outer side of probe system, a plurality of electric telescopic rods are installed on the side of protective shell, the output end of electric telescopic rod is fixedly connected with extrusion block, the outer circumferential side of extrusion block is abutted with sealing capsule, the sealing capsule is fixedly connected on the side of protective shell, electric telescopic rod and extrusion block are located in the sealed space of sealing capsule and protective shell, the sealing capsule has elasticity, a plurality of limit blocks are detachably connected on the side of extrusion block, a plurality of limit blocks are located in the sealed space.

[0009] Preferably, a plurality of mounting grooves are formed in the side of protective shell, a plurality of electric telescopic rods are one-to-one mounted in a plurality of mounting grooves, and a plurality of extrusion blocks are one-to-one slidably connected in mounting grooves.

[0010] Preferably, the installation groove side is communicated with a plurality of containing grooves, a plurality of the limiting blocks are slidably connected in the plurality of containing grooves one by one, and a plurality of the sealing capsules are fixedly connected on the protective shell outside the installation groove and the plurality of containing grooves communicated with the installation groove.

[0011] Preferably, the extrusion block is provided with a limiting assembly, the limiting assembly comprises a limiting motor, the limiting motor is installed in the extrusion block, a threaded rod is coaxially fixedly connected to an output end of the limiting motor, a pushing block is threadedly connected to the threaded rod, the pushing block is slidably connected in the extrusion block, a limiting rod is slidably connected to a side of the extrusion block, the pushing block side is wedge-shaped, and a wedge-shaped inclined surface of the pushing block side abuts on one end of the limiting rod located in the extrusion block, and the limiting rod away from the pushing block is penetrated through the extrusion block and can be detachably connected with the plurality of limiting blocks.

[0012] Preferably, a plurality of sliding grooves are formed in the extrusion block, and the plurality of limiting rods are slidably connected in the plurality of sliding grooves one by one.

[0013] Preferably, a reset spring is fixedly connected between the limiting rod and the sliding groove.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] In the utility model, when the probe system is put into the pore or crack of the deep-sea rock, the electric telescopic rod works to push the extrusion block to move, so that the extrusion block directly contacts the rock through the capsule wall of the sealing capsule, a strong contact pressure can be provided, and the hard rock can be adapted, the extrusion block and the plurality of limiting blocks are synchronously extruded through the limiting assembly, the capsule wall and the content of the extruded sealing capsule form a flexible extrusion contact on the rock, the extrusion contact effect is ensured, the rock is not damaged, the probe system can be stably fixed on the hard rock and the soft rock, and the installation adaptability of the probe system is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is a structural schematic view of the utility model;

[0017] Fig. 2 It is a protective shell structure schematic view of the utility model except the sealing capsule;

[0018] Fig. 3 It is a vertical sectional view of part of the installation mechanism of the utility model.

[0019] In the figure: 1 device body, 2 connecting pipe, 3 probe system, 4 protective shell, 5 installation slot, 6 electric telescopic rod, 7 extrusion block, 8 sealing capsule, 9 containing groove, 10 limiting motor, 11 threaded rod, 12 push block, 13 sliding groove, 14 limiting rod, 15 reset spring, 16 limiting block, 17 limiting hole. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0021] Referring to Figs. 1-3 A deep-sea rock in-situ permeability testing device, comprising:

[0022] The device body 1 is electrically connected with the connecting pipe 2 at the input end, and the connecting pipe 2 is electrically connected with the probe system 3 at the end away from the device body 1.

[0023] The installation mechanism comprises a protective shell 4 fixedly connected to the outer side of the probe system 3, a plurality of electric telescopic rods 6 installed on the side of the protective shell 4, an extrusion block 7 fixedly connected to the output end of the electric telescopic rod 6, a sealing capsule 8 abutting against the outer circumferential side of the extrusion block 7, the sealing capsule 8 being fixedly connected to the side of the protective shell 4, the electric telescopic rod 6 and the extrusion block 7 being located in the sealed space surrounded by the sealing capsule 8 and the protective shell 4, the sealing capsule 8 being elastic, a plurality of limiting blocks 16 being detachably connected to the side of the extrusion block 7, and the plurality of limiting blocks 16 being located in the sealed space.

[0024] A plurality of installation slots 5 are formed in the side of the protective shell 4, the plurality of electric telescopic rods 6 are correspondingly installed in the plurality of installation slots 5, and the plurality of extrusion blocks 7 are correspondingly and slidably connected in the installation slots 5.

[0025] The side of the installation slot 5 is communicated with a plurality of containing grooves 9, the plurality of limiting blocks 16 are correspondingly and slidably connected in the plurality of containing grooves 9, and the plurality of sealing capsules 8 are correspondingly and fixedly connected to the protective shell 4 on the outer circumferential side of the installation slot 5 and the plurality of containing grooves 9 communicated with the installation slot 5.

[0026] The extrusion block 7 is connected with a limiting assembly, the limiting assembly comprises a limiting motor 10 installed in the interior of the extrusion block 7, a threaded rod 11 coaxially fixedly connected to the output end of the limiting motor 10, a push block 12 threadedly connected to the threaded rod 11, the push block 12 being slidably connected in the extrusion block 7, a limiting rod 14 slidably connected to the side of the extrusion block 7, the side of the push block 12 being wedge-shaped, the wedge-shaped inclined surface abutting against the end of the limiting rod 14 located in the extrusion block 7, the end of the limiting rod 14 away from the push block 12 penetrating through the extrusion block 7, and the limiting rod 14 being detachably and connectingly matched with the plurality of limiting blocks 16.

[0027] A plurality of sliding grooves 13 are formed in the extrusion block 7, and a plurality of limiting rods 14 are slidably connected in the plurality of sliding grooves 13 one by one.

[0028] The limiting rod 14 and the sliding groove 13 are fixedly connected with a return spring 15.

[0029] The operation principle of the utility model will be described as follows:

[0030] When working, the probe system 3 is placed in the pore or crack of the deep-sea rock, for the hard deep-sea bedrock, the electric telescopic rod 6 works, the output end thereof is stretched out, pushes the extrusion block 7 to move and stretch out the mounting groove 5, under the pushing of the extrusion block 7, the sealing capsule 8 with elasticity and fluidity is extruded to the circumferential side of the extrusion block 7, so that the extrusion block 7 directly contacts the rock through the capsule wall of the sealing capsule 8 and part of the sealing capsule 8 which is concave on the rock surface, a stronger contact pressure is provided, and the stability of the probe system 3 in the rock is improved, at this time, the equipment body 1 works to drive the fluid to be injected into the rock, and the permeability of the rock can be detected through the probe system 3.

[0031] For the relatively soft sedimentary rock, in order to avoid damaging the rock structure, before the output end of the electric telescopic rod 6 is stretched out, the limiting motor 10 works, the output end thereof drives the threaded rod 11 to rotate, so that the pushing block 12 moves, the pushing block 12 moves to push the limiting rod 14 to stretch out the sliding groove 13, after the limiting rod 14 moves, the limiting rod 14 is clamped into the limiting hole 17 of the limiting block 16, and then when the output end of the electric telescopic rod 6 is stretched out, the extrusion block 7 and the plurality of limiting blocks 16 are synchronously stretched out, the sealing capsule 8 is uniformly pushed, finally, the capsule wall and the content of the extruded sealing capsule 8 form a flexible extrusion contact with the rock, the extrusion contact effect is ensured, the rock is not damaged, and after the probe system 3 is stabilized, the equipment body 1 works to complete the subsequent permeability test operation.

[0032] Meanwhile, a plurality of limiting holes 17 are formed in the limiting block 16 along the axial direction of the output end of the electric telescopic rod 6, so that after the output end of the electric telescopic rod 6 is stretched out, the limiting assembly clamps the limiting block 16, so that the distribution state of the extruded sealing capsule 8 can be adaptively adjusted, the extrusion contact effect on the rock with different shapes and properties is improved, and the installation adaptability of the probe system 3 is improved.

[0033] The above is only a preferred specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A deep-sea rock in-situ permeability test apparatus, characterized by, The utility model relates to a kind of equipment for detecting the quality of liquid, including: Device body (1), the device body (1) input end electrically connected with connecting pipe (2), the connecting pipe (2) is electrically connected with probe system (3) away from device body (1) one end; Mounting mechanism, the mounting mechanism includes protective shell (4), the protective shell (4) is fixedly connected outside probe system (3), the protective shell (4) side is equipped with multiple electric telescopic rods (6), the electric telescopic rod (6) output end is fixedly connected with extrusion block (7), the extrusion block (7) outer circumferential side is abutted with sealing capsule (8), the sealing capsule (8) is fixedly connected on protective shell (4) side, the electric telescopic rod (6) and extrusion block (7) are located in the sealed space that sealing capsule (8) and protective shell (4) surround, the sealing capsule (8) has elasticity, the extrusion block (7) side is detachably clamped with multiple limit blocks (16), multiple the limit block (16) is located in sealed space.

2. The apparatus of claim 1, wherein, Wherein: The protective shell (4) side is equipped with multiple installation grooves (5), multiple the electric telescopic rod (6) is installed in multiple installation grooves (5) one by one, multiple the extrusion block (7) is slidably connected in installation groove (5) one by one.

3. The apparatus of claim 2, wherein, Wherein: The installation groove (5) side is communicated with multiple containing grooves (9), multiple the limit block (16) is slidably connected in multiple containing grooves (9) one by one, multiple the sealing capsule (8) is fixedly connected on the protective shell (4) of installation groove (5) and multiple containing grooves (9) communicated with installation groove (5) outer circumferential side.

4. The apparatus of claim 3, wherein, Wherein: The extrusion block (7) is connected with limit component, the limit component includes limit motor (10), the limit motor (10) is installed in extrusion block (7), the limit motor (10) output end coaxially fixedly connected with threaded rod (11), the threaded rod (11) is threadedly connected with push block (12), the push block (12) is slidably connected in extrusion block (7), the extrusion block (7) side is slidably connected with limit rod (14), the push block (12) side is wedge-shaped, and the wedge-shaped inclined plane is abutted on the one end of limit rod (14) in extrusion block (7), the limit rod (14) away from push block (12) one end penetrates extrusion block (7), and can be separated and multiple limit block (16) clamping cooperation.

5. The apparatus of claim 4, wherein, Wherein: Multiple sliding grooves (13) are set in the extrusion block (7), multiple the limit rod (14) is slidably connected in multiple sliding grooves (13) one by one, the limit hole (17) is set in the limit block (16), and the limit rod (14) is clamped and matched with the limit hole (17) one end out of sliding groove (13).

6. The apparatus of claim 5, wherein, Wherein: The limit rod (14) and sliding groove (13) are fixedly connected with return spring (15).

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