Working residual liquid discharge aiding agent sampling device

Abstract

The utility model provides a working residual liquid discharge aiding agent sampling device which comprises a sampling arm, a sampling container and a guide rod, the sampling arm is of a tubular structure, and a first sealing ring is embedded in the lower end face of the sampling arm; the upper end surface of the sampling container is provided with a sampling part which can be inserted into the sampling arm in a vertical sliding manner, and the sampling part is provided with a sampling hole; a guide rod is arranged in the sampling arm in a penetrating manner, the lower end of the guide rod is connected with the sampling part, and an elastic piece is arranged in the sampling arm; the upper end of the elastic piece is connected with the guide rod and is used for driving the guide rod to slide upwards, so that the upper end surface of the sampling container is sealed on the lower end surface of the sampling arm; the working residual liquid discharge aiding agent sampling device disclosed by the utility model can be used for sampling liquid samples at different depth positions in a mixed fluid medicament, and is convenient and quick to operate.

Description

TECHNICAL FIELD

[0001] The utility model relates to drilling auxiliary agent production equipment field, specifically, relate to a kind of working residual liquid cleanup aid sampling device. BACKGROUND

[0002] Working residual liquid cleanup aid has the effect of reducing the interfacial tension of crude oil and rock surface, changing the wettability of rock surface, emulsifying crude oil, inhibiting clay swelling, etc. in the process of oil exploitation, which can help the working residual liquid in the process of acidification, fracturing and other operations to flow back from the formation, reducing the damage of working liquid to the formation. Working residual liquid cleanup aid is mixed and stirred by various agents. In the production process, powdery drugs such as cellulose drugs and steady-state surface active agents are added to the viscous fluid agent in the stirring kettle. The degree of mixing of the above-mentioned powdery drugs and fluid agent is an important indicator of the quality of working residual liquid cleanup aid. The amount of powdery particles in the mixed fluid agent is usually used to judge the quality of working residual liquid cleanup aid.

[0003] Usually, when sampling mixed fluid agent, the sampling tube needs to be inserted into the mixed fluid agent for sampling. The sample source is the sample entering the sampling tube when the sampling tube is just inserted into the mixed fluid agent, and the sample condition of the mixed fluid agent at a specific depth cannot be judged. UTILITY MODEL CONTENT

[0004] The utility model aims to overcome the shortcomings of the background technology and provide a working residual liquid cleanup aid sampling device.

[0005] The embodiment of the utility model is realized by the following technical solutions:

[0006] A working residual liquid cleanup aid sampling device comprises:

[0007] A sampling arm in tubular structure, a first sealing ring is embedded in the lower end face of the sampling arm;

[0008] A sampling container, the upper end face of the sampling container has a sampling part that can be inserted into the inside of the sampling arm up and down, and the sampling part is provided with a sampling hole; and

[0009] A guide rod is provided in the sampling arm, the lower end of the guide rod is connected with the sampling part, and an elastic member is provided in the sampling arm; the upper end of the elastic member is connected with the guide rod to drive the guide rod to slide up so that the upper end face of the sampling container is sealed on the lower end face of the sampling arm.

[0010] Further, when the sampling container is sealed on the lower end face of the sampling arm, the first sealing ring is wrapped around the outer peripheral side of the sampling part.

[0011] Further, the sampling part is in tubular structure communicated with the sampling container, the sampling hole is arranged on the side wall of the sampling part; a group of connecting blocks are threadedly connected in the sampling part, and the lower end of the guide rod is threadedly connected in the connecting blocks.

[0012] Further, the sampling arm is internally provided with a group of limiting rings, when the sampling container is sealed to the lower end surface of the sampling arm, the upper end of the connecting block abuts against the limiting ring; the guide rod is arranged in the limiting ring.

[0013] Further, the upper end surface of the connecting block is further embedded with a second sealing ring, so as to seal with the lower end surface of the limiting ring.

[0014] Further, the guide rod is provided with a limiting part located at the upper end of the limiting ring, the elastic member is a spring sleeved on the guide rod, and the spring is connected in compression between the limiting part and the limiting ring.

[0015] Further, the outer diameter of the sampling container is equal to the outer diameter of the sampling arm, and the outer bottom profile of the sampling container is in conical shape.

[0016] Further, the upper end of the guide rod extends out of the sampling arm, and the upper end of the guide rod is provided with a pressing part, so as to push the guide rod to slide downward.

[0017] The technical scheme of the utility model has at least the following advantages and beneficial effects:

[0018] In the working residual liquid drainage aid sampling device, before sampling, the upper end surface of the sampling container is sealed to the lower end surface of the sampling arm under the driving of the elastic member and the guide rod, so that when the sampling device is inserted into the liquid medium, the liquid sample cannot enter the sampling container; after being inserted to the predetermined depth, the guide rod is pressed downward, so that the sampling hole on the sampling part slides downward and is exposed outside the lower end of the sampling arm, and the liquid sample can flow into the sampling container; after the guide rod is released, the elastic member automatically drives the upper end of the sampling container to reset and seal; the working residual liquid drainage aid sampling device can take the liquid sample at different depths in the mixed fluid medicament, and the operation is convenient and fast. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a front view of the working residual liquid drainage aid sampling device of the utility model;

[0020] Figure 2 It is a schematic view of the internal structure of the working residual liquid drainage aid sampling device of the utility model;

[0021] Figure 3 It is an enlarged view of A part in Figure 2

[0022] ​Icon: 10-sampling arm, 100-first sealing ring, 101-limiting ring, 102-scale, 103-handle, 20-sampling container, 200-sampling part, 201-sampling hole, 30-guide rod, 300-pressing part, 301-limiting part, 40-connection block, 400-second sealing ring, 50-elastic member. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0024] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, if the terms "setting", "installing", "connecting", "connecting" appear, they should be understood broadly, for example, they can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, or can be connected inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0025] Embodiment one:

[0026] Reference Figures 1 to 3 The embodiments of the present application provide a working residual liquid assisted discharge agent sampling device, which comprises three parts of a sampling arm 10, a sampling container 20 and a guide rod 30. The sampling container 20 is arranged at the lower end of the sampling arm 10 and is used for inserting into a liquid sample for sampling.

[0027] Correspondingly, the sampling arm 10 is provided with a scale 102 for measuring the depth of the sampling container 20 inserted.

[0028] The outer diameter of the sampling container 20 is equal to the outer diameter of the sampling arm 10, and the outer bottom contour of the sampling container 20 is conical.

[0029] In order to make the sampling container 20 reach the predetermined depth in the liquid sample for sampling, therefore, before the sampling container 20 reaches the predetermined depth in the liquid sample, the sampling container 20 is sealed at the lower end of the sampling arm 10 without sampling operation, and the sampling operation of the sampling container 20 is realized by driving the guide rod 30.

[0030] The interaction relationship between the sampling arm 10, the sampling container 20 and the guide rod 30 will be described in detail below.

[0031] Referring to Figure 2 and Figure 3 , the sampling arm 10 is a tubular structure through up and down, and the lower end surface of the sampling arm 10 is provided with an annular embedding groove, and the first sealing ring 100 is embedded in the embedding groove.

[0032] Referring to Figure 3 , the upper end surface of the sampling container 20 is a plane with the same diameter as the lower end surface of the sampling arm 10, and the sampling part 200 is arranged in the middle of the plane of the upper end surface of the sampling container 20 and can be inserted into the inside of the sampling arm 10 up and down, the sampling part 200 is a circular tube, the lower end of the sampling part 200 communicates with the inside of the sampling container 20, and the outer diameter of the sampling part 200 matches the inner diameter of the sampling arm 10.

[0033] Among them, referring to Figure 3 , the sampling part 200 is provided with a sampling hole 201, when the upper end surface of the sampling container 20 abuts against the lower end surface of the sampling arm 10, that is, when the sampling container 20 is sealed to the lower end surface of the sampling arm 10, the first sealing ring 100 is wrapped around the outer peripheral side of the sampling part 200; due to the sealing effect of the first sealing ring 100, the sampling part 200 and the sampling hole 201 are completely sealed in the inside of the sampling arm 10, and the hydraulic pressure cannot enter the sampling container 20.

[0034] Referring to Figure 1 and Figure 3 , the guide rod 30 is arranged in the sampling arm 10, the upper end of the guide rod 30 is arranged outside the upper end of the sampling arm 10, and the upper end of the guide rod 30 is provided with a pressing part 300 which can be used to push the guide rod 30 to slide downward; the lower end of the guide rod 30 is connected with the sampling part 200 through the connecting block 40.

[0035] Among them, the sampling arm 10 is provided with an elastic member 50, the upper end of the elastic member 50 is connected with the guide rod 30, and the lower end of the elastic member 50 acts on the inner wall of the sampling tube 10, under the action of the elastic member 50, the guide rod 30 is driven to slide upward, and the upper end surface of the sampling container 20 is sealed on the lower end surface of the sampling arm 10.

[0036] Correspondingly, during the sampling operation, the pressing part 300 needs to be pressed downward to overcome the action of the elastic member 50 to make the sampling container 20 slide downward and expose the sampling part 200 and the sampling hole 201.

[0037] In this embodiment, the connecting block 40 is threadedly connected in the sampling part 200, and the lower end of the guide rod 30 is threadedly connected in the connecting block 40; in addition, the upper end of the connecting block 40 protrudes in the sampling part 200, which can facilitate the dismounting of the connecting block 40, therefore, the sampling container 20, the sampling arm 10, the guide rod 30 and the connecting block 40 are all detachable structures, which can be dismounted and cleaned independently after the sampling is completed.

[0038] Referring to Figure 3The inside of the sampling arm 10 is provided with a set of limiting rings 101, when the sampling container 20 is sealed to the lower end surface of the sampling arm 10, the upper end of the connecting block 40 abuts against the limiting ring 101; wherein the guide rod 30 is arranged in the limiting ring 101; in order to increase the isolation effect between the upper and lower two parts of the limiting ring 101 in the sampling arm 10, and reduce the immersion of the liquid sample into the upper part of the pipe of the sampling arm 10, the upper end surface of the connecting block 40 is further embedded with a second sealing ring 400, which is used for sealing with the lower end surface of the limiting ring 101.

[0039] Wherein, referring to Figure 3 In the embodiment, the guide rod 30 is provided with a limiting part 301 located at the upper end of the limiting ring 101, the elastic member 50 is a spring which is sleeved on the guide rod 30, and the spring is connected in a compressed state between the limiting part 301 and the limiting ring 101, under the stretching force of the spring, the upper end of the sampling container 20 can be tightly sealed on the lower end surface of the sampling arm 10.

[0040] The working mode of the working residual liquid assisted drainage agent sampling device is as follows:

[0041] After the sampling arm 10 is inserted into the liquid sample to a predetermined depth (determined according to the scale 102), the guide rod 30 is pressed downward, so that the sampling hole 201 at the upper end of the sampling container 20 is exposed, and the liquid sample enters the sampling container 20; after sampling is completed, the guide rod 30 is released, the elastic member 50 drives the upper end of the sampling container 20 to be sealed and reset on the lower end surface of the sampling arm 10, and the sampling device is extracted; finally, the sampling container 20 is screwed to be separated from the sampling arm 10, and the liquid sample can be poured out.

[0042] The above is only the preferred embodiment of the utility model, and is not used for limiting the utility model, for the person skilled in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A working raffinate cleanup aid sampling device characterized by, The utility model relates to a sampling device, which comprises: a sampling arm in a tubular structure, a first sealing ring embedded on the lower end surface of the sampling arm; a sampling container with a sampling part capable of being inserted into the sampling arm in a sliding manner, the sampling part being provided with a sampling hole; and a guide rod arranged in the sampling arm, the lower end of the guide rod being connected with the sampling part, and an elastic member being arranged in the sampling arm, the upper end of the elastic member being connected with the guide rod to drive the guide rod to slide upward so that the upper end surface of the sampling container is sealed on the lower end surface of the sampling arm.

2. The working spent fluid cleanup aid sampling device of claim 1, wherein, When the sampling container is sealed on the lower end surface of the sampling arm, the first sealing ring is wrapped around the outer circumferential side of the sampling part.

3. The working spent fluid cleanup aid sampling device of claim 1 or 2, wherein, The sampling part is in a tubular structure communicating with the sampling container, the sampling hole being arranged on the side wall of the sampling part, and a plurality of connecting blocks being threadedly connected in the sampling part, the lower end of the guide rod being threadedly connected in the connecting blocks.

4. The working spent fluid cleanup aid sampling device of claim 3, wherein, A plurality of limiting rings are arranged in the sampling arm, the upper end of the connecting blocks abutting against the limiting rings when the sampling container is sealed on the lower end surface of the sampling arm, and the guide rod being arranged in the limiting rings.

5. The working spent fluid cleanup aid sampling device of claim 4, wherein, A second sealing ring is embedded on the upper end surface of the connecting blocks to seal the lower end surface of the limiting rings.

6. The working spent fluid cleanup aid sampling device of claim 4, wherein, A limiting part is arranged on the upper end of the limiting rings, the elastic member being a spring sleeved on the guide rod, and the spring being in a compressed state and connected between the limiting part and the limiting rings.

7. The working residual fluid cleanup aid sampling device of claim 1, wherein, The outer diameter of the sampling container is equal to the outer diameter of the sampling arm, and the outer bottom part of the sampling container is in a conical shape.

8. The working residual fluid cleanup aid sampling device of claim 1, wherein, The upper end of the guide rod extends out of the sampling arm, and a pressing part is arranged on the upper end of the guide rod to push the guide rod to slide downward.

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