Online sampler for moisture content of crude oil

Abstract

The utility model relates to the technical field of crude oil sampling, and discloses a crude oil moisture content on-line sampler which comprises a crude oil pipe body and a movable circulating pipe, the movable circulating pipe is arranged at the bottom of the crude oil pipe body in an O shape, and a moisture content analysis controller and a moisture content monitoring probe are installed on the crude oil pipe body in an inserted mode. According to the utility model, the movable circulating pipe is integrally O-shaped and is communicated with the crude oil pipe body, so that the crude oil can be simultaneously guided from the upper part and the lower part of the movable circulating pipe, oil, water and gas in the crude oil are separated and guided, the sampling is stable, and the moisture content monitoring probe and the moisture content analysis controller are used for detecting, analyzing and controlling; the remote communication device is used for remote control operation, sampling and oil-gas separation operation can be simply and conveniently completed, the device has the oil-gas separation capacity, oil-gas separation flow guide operation can be conducted during water content sampling, sampling is accurate and stable, and automatic online sampling is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to crude oil sampling technical field, concretely is a kind of crude oil moisture content on -line sampler. BACKGROUND

[0002] Crude oil moisture content is an important parameter in petroleum exploitation, petroleum chemical industry, is the key data in oilfield production and oil product transaction, and it has important significance to the exploitation of crude oil, dehydration, storage and transportation sales and crude oil refining processing etc.;If crude oil moisture content monitoring is not accurate, it will directly cause influence to determine water well, oil layer, estimate crude oil production, predict the development life of oil well etc., for this, it needs to use moisture content sampling device, carries out sampling and detection to crude oil moisture content.

[0003] After underground crude oil exploitation, it is oil, gas, water three-phase mixture, is typical multiphase fluid. Due to the difference of physical properties of light phase and heavy phase fluid, it leads to the interfacial effect and complex mixed fluid phase slip characteristics, that is, volume fraction and flow fraction are not equal, it is difficult to accurately measure its flow parameter, usually when sampling crude oil moisture content, due to gas mutual mixing, moisture content sampling and detection are difficult and variable, gas cannot be separated and guided when sampling moisture content, and the convenience of crude oil moisture content sampling is insufficient, and its automatic on-line sampling capacity is insufficient, and the sampling convenience is not good, therefore we propose a kind of crude oil moisture content on -line sampler to solve the above problems. UTILITY MODEL CONTENT

[0004] (I) technical problem solved

[0005] In view of the deficiencies of prior art, the utility model provides a kind of crude oil moisture content on -line sampler, with oil-gas separation capacity, can carry out oil-gas separation and guide flow operation when sampling moisture content, sampling is more accurate and stable, and the automatic on-line sampling convenience etc., solve the problem that the existing crude oil sampling cannot better carry out oil-gas separation operation, and the automatic on-line sampling capacity is insufficient, and sampling is relatively inconvenient.

[0006] (II) technical scheme

[0007] To realize the above oil-gas separation capacity, can carry out oil-gas separation and guide flow operation when sampling moisture content, sampling is more accurate and stable, and the automatic on-line sampling convenience, the utility model provides the following technical scheme: a kind of crude oil moisture content on -line sampler, including crude oil pipe body and movable circulation pipe, the movable circulation pipe is arranged in the bottom of crude oil pipe body in O shape;

[0008] The crude oil pipe body is provided with a water content rate analysis controller and a water content rate monitoring probe which is inserted and installed, the water content rate monitoring probe is located on the inside of the crude oil pipe body, the crude oil pipe body and the movable circulating pipe are both provided with a control switch valve, the bottom of the movable circulating pipe is provided with a normal sample sampling cylinder and an over-standard sample sampling cylinder.

[0009] The crude oil pipe body and the movable circulating pipe are cyclically communicated, the crude oil pipe body and the movable circulating pipe are disconnected by the control switch valve, and the normal sample sampling cylinder and the over-standard sample sampling cylinder are both provided with an adjusting switch valve.

[0010] Preferably, the movable circulating pipe is composed of two U-shaped pipe bodies, the movable circulating pipe is arranged in an O-shaped manner as a whole, the top of the movable circulating pipe is located above the crude oil pipe body, and the bottom of the movable circulating pipe is located below the crude oil pipe body.

[0011] Preferably, the water content rate analysis controller is connected with the water content rate monitoring probe, the water content rate analysis controller is located on the outside of the crude oil pipe body, and the water content rate analysis controller is electrically connected with the control switch valve and the adjusting switch valve respectively.

[0012] Preferably, the crude oil pipe body is provided with a remote communication device on the side, and the remote communication device is signal-connected with the water content rate analysis controller.

[0013] Preferably, the control switch valve comprises a pipe body control valve and a sampling control valve, the pipe body control valve is arranged on the crude oil pipe body, the pipe body control valve is located in the middle of the movable circulating pipe, and a plurality of sampling control valves are installed on the movable circulating pipe, and a plurality of sampling control valves are located above and below the crude oil pipe body correspondingly.

[0014] Preferably, the number of pipe body control valves is single, the number of sampling control valves is not less than four, the movable circulating pipe is closed and opened to the connection of the crude oil pipe body by the sampling control valve, the crude oil pipe body is controlled by the pipe body control valve, and the pipe body control valve and the sampling control valve are both electrically controlled valves.

[0015] Preferably, the upper and lower sides of the crude oil pipe body are both provided with mounting fixed end heads, the two ends of the two U-shaped pipe bodies are respectively mounted on the four mounting fixed end heads, the movable circulating pipe is connected with the crude oil pipe body by the mounting fixed end heads, and the movable circulating pipe is located on the side of the water content rate monitoring probe.

[0016] Preferably, the normal sample sampling cylinder and the over-standard sample sampling cylinder are both sealingly and threadedly connected to the bottom of the movable circulating pipe.

[0017] (Three) beneficial effects

[0018] Compared with the prior art, the crude oil water cut on-line sampler has the following beneficial effects:

[0019] 1、The crude oil water cut on-line sampler, the crude oil pipe body can be switched on and off by the pipe body control valve, the movable circulating pipe can be switched on and off by the sampling control valve, the crude oil in the crude oil pipe body can be guided from the top and the bottom of the movable circulating pipe at the same time, and finally guided out from the other side of the crude oil pipe body, so that the oil, water and gas in the crude oil are separated and guided, the oil and water in the crude oil can be guided from the bottom of the movable circulating pipe, and the gas in the crude oil can be guided from the top of the movable circulating pipe, so that the oil and gas separation effect is achieved, the separated water-containing oil can be sampled by the normal sample sampling cylinder and the over-standard sample sampling cylinder, the device has the oil and gas separation capacity, the oil and gas separation and guiding operation can be performed when the water cut is sampled, and the sampling is more accurate and stable.

[0020] 2、The crude oil water cut on-line sampler, the water cut analysis controller and the water cut monitoring probe are arranged on the crude oil pipe body, the water cut monitoring probe can intuitively monitor the water cut, the water cut analysis controller can intuitively control the opening and closing of the control switch valve and the adjusting switch valve, the remote communication device remotely controls the water cut analysis controller, so that the on-line sampling operation is remotely performed, and the device can automatically perform on-line sampling and is convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a front view of the structure of the utility model;

[0022] Figure 2 It is a front view of the structure of the utility model;

[0023] Figure 3 It is a front view of the structure of the utility model;

[0024] Figure 4 It is a front view of the structure of the utility model.

[0025] In the drawing: 1, crude oil pipe body; 2, movable circulating pipe; 3, water cut analysis controller; 4, water cut monitoring probe; 5, control switch valve; 51, pipe body control valve; 52, sampling control valve; 6, normal sample sampling cylinder; 7, over-standard sample sampling cylinder; 8, adjusting switch valve; 9, remote communication device; 10, installation fixed end. DETAILED DESCRIPTION

[0026] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiments only are a part of embodiments of the utility model, and not all embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the range of protection of the utility model.

[0027] Please refer to Figures 1-4 A kind of crude oil water content on-line sampler, including crude oil pipe body 1 and movable circulation pipe 2, movable circulation pipe 2 is arranged in the bottom of crude oil pipe body 1 with O letter shape;

[0028] Crude oil pipe body 1 is equipped with plug-in installation with water content analysis controller 3 and water content monitoring probe 4, water content monitoring probe 4 is located at the inside of crude oil pipe body 1, control switch valve 5 is arranged on crude oil pipe body 1 and movable circulation pipe 2, the bottom of movable circulation pipe 2 is equipped with normal sample sampling cylinder 6 and overproof sample sampling cylinder 7;

[0029] Among them, crude oil pipe body 1 and movable circulation pipe 2 are cyclically communicated, crude oil pipe body 1 and movable circulation pipe 2 are disconnected by control switch valve 5, and adjusting switch valve 8 is arranged on normal sample sampling cylinder 6 and overproof sample sampling cylinder 7;

[0030] The beneficial effects expressed in the present scheme are: by setting the movable circulation pipe 2, the whole O-shaped circulation pipe 2 is installed in communication with the crude oil pipe body 1, and the opening and closing control is performed by the plurality of control switch valves 5, the crude oil in the crude oil pipe body 1 can be guided from the top and bottom of the movable circulation pipe 2 at the same time, the oil, water and gas in the crude oil are separated and guided, the oil and gas separation effect is achieved during sampling collection, the separated water-containing oil can be sampled by the normal sample sampling cylinder 6 and the overproof sample sampling cylinder 7, the water content monitoring probe 4 can be used for intuitive monitoring of the water content, the water content data is intuitively analyzed and controlled by the water content analysis controller 3, and the remote communication device 9 is remotely controlled by the water content analysis controller 3, so that the sampling and oil and gas separation operation can be simply and conveniently completed, the device has the oil and gas separation capability, the oil and gas separation and guiding operation can be performed during water content sampling, the sampling is more accurate and stable, and the automatic online sampling is convenient.

[0031] Further, the movable circulation pipe 2 is composed of two U-shaped pipe bodies, the whole movable circulation pipe 2 is arranged in an O shape, the top of the movable circulation pipe 2 is located above the crude oil pipe body 1, and the bottom of the movable circulation pipe 2 is located below the crude oil pipe body 1;

[0032] By setting the movable circulation pipe 2 composed of two U-shaped pipe bodies, stable assembly operation can be performed, so that the whole crude oil pipe body 1 is conveniently communicated, the oil, water and gas in the crude oil are conveniently and stably separated and guided, and the oil and gas separation effect is achieved.

[0033] Further, the water content analysis controller 3 is connected with the water content monitoring probe 4, the water content analysis controller 3 is located outside the crude oil pipe body 1, and the water content analysis controller 3 is electrically connected with the control switch valve 5 and the adjusting switch valve 8 respectively;

[0034] By setting the water content analysis controller 3 connected with the water content monitoring probe 4, the water content monitoring probe 4 can directly monitor the water content of the oil liquid conducted by the crude oil pipe body 1, the water content data is directly analyzed and controlled by the water content analysis controller 3, and the water content analysis controller 3 can directly control the opening and closing of the control switch valve 5 and the adjusting switch valve 8, thereby realizing automatic control.

[0035] Further, the crude oil pipe body 1 is provided with a remote communication device 9, and the remote communication device 9 is signal connected with the water content analysis controller 3;

[0036] By setting the remote communication device 9, the remote communication device 9 remotely controls the operation of the water content analysis controller 3, and the adjusting switch valve 8 can be adjusted according to the change of the water content of the crude oil and guided into the normal sample sampling cylinder 6 and the over-standard sample sampling cylinder 7 respectively, thereby realizing remote or automatic sampling.

[0037] Further, the control switch valve 5 includes a pipe body control valve 51 and a sampling control valve 52, the pipe body control valve 51 is arranged on the crude oil pipe body 1, and the pipe body control valve 51 is located at the middle part of the movable circulating pipe 2; the plurality of sampling control valves 52 are installed on the movable circulating pipe 2, and the plurality of sampling control valves 52 are located above and below the crude oil pipe body 1 respectively;

[0038] By setting the control switch valve 5 including the pipe body control valve 51 and the sampling control valve 52, the pipe body control valve 51 can control the opening and closing of the crude oil pipe body 1, and the sampling control valve 52 can control the opening and closing of the movable circulating pipe 2, thereby realizing convenient and stable overall opening and closing control.

[0039] Further, the number of the pipe body control valve 51 is single, the number of the sampling control valve 52 is not less than four, the movable circulating pipe 2 is closed and opened on the crude oil pipe body 1 by the sampling control valve 52, the crude oil pipe body 1 is controlled by the pipe body control valve 51, and the pipe body control valve 51 and the sampling control valve 52 are electrically controlled valves;

[0040] By setting the number of the pipe body control valve 51 to be single, only the crude oil pipe body 1 is closed, and the plurality of sampling control valves 52 are used to close the movable circulating pipe 2, thereby stably and efficiently controlling the opening and closing of the movable circulating pipe 2 as a whole, preventing the reverse flow of the crude oil into the movable circulating pipe 2, and realizing good opening and closing effect.

[0041] Further, the upper and lower sides of the crude oil pipe body 1 are provided with mounting fixed end 10, the two ends of the two U-shaped pipe bodies are respectively mounted on the four mounting fixed end 10, the movable circulating pipe 2 is connected with the mounting fixed end 10 and the crude oil pipe body 1, and the movable circulating pipe 2 is located on the side of the water cut monitoring probe 4.

[0042] By setting the mounting fixed end 10, the movable circulating pipe 2 can be stably and conveniently mounted on the upper and lower sides of the crude oil pipe body 1, and the installation is convenient and adaptable.

[0043] Further, the normal sample sampling cylinder 6 and the over-standard sample sampling cylinder 7 are sealingly and threadedly connected to the bottom of the movable circulating pipe 2.

[0044] By setting the normal sample sampling cylinder 6 and the over-standard sample sampling cylinder 7, the whole is convenient to disassemble and connect, simple to operate, and good in adaptability.

[0045] It should be noted that the devices in the present application are common market devices, which can be selected according to the needs during specific use, and the circuit connection relationship of each device is a simple series and parallel connection circuit, which does not have an innovation point in circuit connection, and can be easily realized by those skilled in the art, and belongs to the prior art, which will not be described in detail.

[0046] Working principle: by providing the movable circulating pipe 2 on the crude oil pipe body 1, the movable circulating pipe 2 can be connected with the crude oil pipe body 1, the movable circulating pipe 2 is installed in communication with the crude oil pipe body 1 in the form of O-shaped, and is controlled by the multiple control switch valves 5, the control switch valve 5 includes the pipe body control valve 51 and the sampling control valve 52, the pipe body control valve 51 can control the opening and closing of the crude oil pipe body 1, and the sampling control valve 52 can control the opening and closing of the movable circulating pipe 2.

[0047] When the normal crude oil is transported, the pipe body control valve 51 is opened in the flow state, the crude oil pipe body 1 is controlled to transport the crude oil, and the sampling control valve 52 can close the movable circulating pipe 2, when the water cut monitoring is needed, the pipe body control valve 51 controls the crude oil pipe body 1 to be closed, and the sampling control valve 52 opens the communication between the movable circulating pipe 2 and the crude oil pipe body 1, the crude oil in the crude oil pipe body 1 can be guided from the upper and lower sides of the movable circulating pipe 2 at the same time, and finally guided out from the other side of the crude oil pipe body 1, so as to separate and guide the oil, water and gas in the crude oil, the oil and water in the crude oil can be guided from the bottom of the movable circulating pipe 2, and the gas in the crude oil can be guided from the top of the movable circulating pipe 2, so as to achieve the oil and gas separation effect during sampling, and the separated water-containing oil can be sampled by the normal sample sampling cylinder 6 and the over-standard sample sampling cylinder 7.

[0048] The crude oil pipe body 1 is provided with a water cut analysis controller 3 and a water cut monitoring probe 4, the water cut monitoring probe 4 can visually monitor the water cut of the oil liquid conducted by the crude oil pipe body 1, the water cut data is visually analyzed and controlled by the water cut analysis controller 3, the water cut analysis controller 3 can visually control the opening and closing of the control switch valve 5 and the adjusting switch valve 8, the remote communication device 9 remotely controls the operation of the water cut analysis controller 3, the adjusting switch valve 8 can be guided into the normal sample sampling cylinder 6 and the over-standard sample sampling cylinder 7 according to the change of the water cut of the crude oil, and the remote or automatic sampling is carried out, the control switch valve 5 can be stably sampled, and the sampling and oil-gas separation operation can be simply and conveniently completed, so that the device has the oil-gas separation capacity, the oil-gas separation and guiding operation can be carried out when the water cut sampling is carried out, the sampling is more accurate and stable, and the automatic online sampling is convenient, the existing crude oil sampling cannot better carry out the oil-gas separation operation, the automatic online sampling capacity is insufficient, and the sampling is relatively inconvenient.

[0049] It should be noted that the relative terms such as first and second, and the like are used herein solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the recited element.

[0050] Although the embodiments of the present application have been shown and described, it is to be understood that for the purpose of the present application, the embodiments change, modify, replace and vary in many ways without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An online water cut sampler for crude oil, characterized by: Including crude oil pipe body (1) and movable circulation pipe (2), movable circulation pipe (2) is arranged in the bottom of crude oil pipe body (1) in O shape; The water content rate analysis controller (3) and the water content rate monitoring probe (4) are provided on the crude oil pipe body (1), the water content rate monitoring probe (4) is located on the inside of the crude oil pipe body (1), the crude oil pipe body (1) and the movable circulation pipe (2) are provided with control switch valve (5), the bottom of the movable circulation pipe (2) is provided with normal sample sampling cylinder (6) and overproof sample sampling cylinder (7); Wherein, the crude oil pipe body (1) and the movable circulation pipe (2) are communicated, the crude oil pipe body (1) and the movable circulation pipe (2) are disconnected by control switch valve (5), the normal sample sampling cylinder (6) and the overproof sample sampling cylinder (7) are provided with adjusting switch valve (8).

2. An on-line water cut sampler for crude oil as claimed in claim 1, wherein: The movable circulation pipe (2) is combined by two U-shaped pipe bodies, the movable circulation pipe (2) is arranged in O shape as a whole, the top of the movable circulation pipe (2) is above the crude oil pipe body (1), and the bottom of the movable circulation pipe (2) is below the crude oil pipe body (1).

3. An on-line water cut sampler for crude oil as claimed in claim 1, wherein: The water content rate analysis controller (3) is connected with the water content rate monitoring probe (4), the water content rate analysis controller (3) is located on the outside of the crude oil pipe body (1), and the water content rate analysis controller (3) is electrically connected with the control switch valve (5) and the adjusting switch valve (8) respectively.

4. The online water cut sampler for crude oil of claim 1, wherein: The side of the crude oil pipe body (1) is provided with remote communication device (9), and the remote communication device (9) is signal connected with the water content rate analysis controller (3).

5. The online water cut sampler for crude oil of claim 1, wherein: The control switch valve (5) includes pipe body control valve (51) and sampling control valve (52), the pipe body control valve (51) is arranged on the crude oil pipe body (1), the pipe body control valve (51) is located in the middle of the movable circulation pipe (2), and the sampling control valve (52) is installed on the movable circulation pipe (2), and the sampling control valve (52) is located above and below the crude oil pipe body (1) correspondingly.

6. An on-line water cut sampler for crude oil as claimed in claim 5 wherein: The number of pipe body control valve (51) is single, the number of sampling control valve (52) is not less than four, the movable circulation pipe (2) is closed and opened on the connection of the crude oil pipe body (1) by the sampling control valve (52), the crude oil pipe body (1) is controlled by the pipe body control valve (51), and the pipe body control valve (51) and the sampling control valve (52) are electrically controlled valves.

7. An on-line water cut sampler for crude oil as claimed in claim 2, wherein: The upper and lower sides of the crude oil pipe body (1) are provided with mounting fixed end (10), the two ends of the two U-shaped pipe bodies are mounted on the four mounting fixed end (10) respectively, the movable circulation pipe (2) is connected with the crude oil pipe body (1) by the mounting fixed end (10), and the movable circulation pipe (2) is located on the side of the water content rate monitoring probe (4).

8. An online water cut sampler for crude oil as claimed in claim 1, wherein: The normal sample sampling cylinder (6) and the overproof sample sampling cylinder (7) are sealed and threadedly connected to the bottom of the movable circulation pipe (2).

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