CN213450371U

CN213450371U - Oil sampling device for high-water-content well

Info

Publication number: CN213450371U
Application number: CN202021119762.0U
Authority: CN
Inventors: 李晓红; 王仁亮; 周益生; 焦成杰; 林妍妮; 王峰
Original assignee: China Petroleum and Chemical Corp; Sinopec Shengli Oilfield Co Binnan Oil Extraction Plant
Current assignee: China Petroleum and Chemical Corp; Sinopec Shengli Oilfield Co Binnan Oil Extraction Plant
Priority date: 2020-06-16
Filing date: 2020-06-16
Publication date: 2021-06-15
Anticipated expiration: 2030-06-16

Abstract

The utility model discloses a high moisture well oil sampling device, including oil storage cavity, oil scattering plate, the oil scattering plate is fixed inside the oil storage cavity, and the vertical plane of oil scattering plate is corresponding with the inlet of oil storage cavity. The upper side edge of the oil dispersing plate is fixedly connected with the inner wall of the oil storage cavity in a closed manner, and the left side edge and the right side edge of the oil dispersing plate are fixedly connected with the inner wall of the oil storage cavity in a closed manner. The oil dispersing plate separates oil from liquid, separated stratum water flows out from the liquid outlet in the lower part according to the characteristic of light oil and heavy water, oil floats up to the oil storage cylinder, and pure oil in the oil storage cylinder is taken out when the pure oil reaches a certain amount, so that the production data of the oil field can be satisfactorily completed without damaging the environment, and the produced stratum water is not required to be discharged. The operation is very convenient and fast.

Description

Oil sampling device for high-water-content well

Technical Field

The utility model belongs to the technical field of the crude oil large sample technique of oil recovery trade admission high water content well and specifically relates to high water content well oil sampling device.

Background

At present, in the production process of each oil field, recording a crude oil large sample of the oil well is indispensable production data, recording a pure oil large sample is mainly to analyze the characteristics of oil of a stratum to judge the change condition of an oil layer so as to provide a basis for reasonable production of the oil well, as the exploitation of the oil field enters the middle and later stages, most of the oil wells have high water content, and the difficulty for obtaining the pure oil large sample is very high, the current common operation method is to use a barrel container, discharge a large amount of produced liquid at a well head, then fish out floating oil, pour the residual produced water, so that the required oil quantity can be taken out after a plurality of operations, the difficulty for recording the work can be seen, the efficiency is low, and the other difficulty is that if the residual produced water is poured everywhere, because the stratum water has strong corrosivity, the environment is greatly damaged, and the environment is protected, the national policies of creating green water and green mountains are opposite, and the well station has no corresponding treatment measures, and brings great troubles to the well station. Although there are many patent designs in the aspect of sampler, some of them aim at solving the problem of blowout prevention of small samples of daily oil sampling, preventing oil and water from splashing on operators, or aiming at improving the working efficiency of small samples of daily oil sampling, the method is the same as the sampling method and is oil mixing and water mixing, and the purpose and effect of avoiding water and oil sampling cannot be achieved.

Publication (bulletin) No.: CN206513366U, publication (public notice) day: 2017-09-22A high water content oil well bulk sample sampler comprises a sampling pipe, a diffuser, a sampling barrel, an outlet valve, an outlet pipe, a sampling barrel top and a support, and is characterized in that: the sampling barrel stands by the side of a wellhead sampling valve through a support, the sampling tube is connected with the wellhead sampling valve, an outlet valve of the sampling barrel is connected with a casing valve of the casing through an outlet tube, oil, water and gas produced by the oil well enter the sampling barrel through the sampling tube and a diffuser to be separated from oil, water and gas, the separated water enters the casing through the outlet valve and the outlet tube of the sampling barrel, and crude oil is left in the sampling barrel. The utility model discloses can get the oil sample of standard volume in succession, the sleeve pipe is retrieved to the water that has of separation (the casing pressure of high moisture oil well is zero), need not arrange outward, non-staining environment, the extravagant crude oil. The diffuser is arranged, so that the oil-water separation speed and effect are improved.

Publication (bulletin) No.: CN105756677A, publication (public notice) day: 2016-07-13 a high water content oil well total analysis oil sample sampler, comprising: moving the chassis, storing and processing liquid and automatically controlling electricity; the movable chassis part consists of a push-pull handle, a partition plate, warp and weft longitudinal partition plates, a wheel train, a motor bracket and a bottom plate; the liquid storage and treatment part consists of a funnel, a control valve, an air balance gate, an electromagnetic valve, an emptying valve, a sewage tank, an oil sample barrel, a bevel gear set, a direct current motor, a packing box, a motor fixing plate, an exhaust pipe, a hot water (steam) spray pipe, a separator, a stirring rod, a buffer cap, a concave partition plate, a liquid inlet pipe, a sand baffle plate and a sewage tank; the electric automatic control part consists of an audible and visual alarm, a detection body, a liquid level switch, a display screen, a control panel, an upper exhaust fan, an exhaust fan, a battery pack, an air leakage alarm LHD and a controller PLC. The movable chassis is provided with a liquid storage processing part, and the automatic separation of oil, gas and water produced by the oil well is realized through an electric automatic control part, so that the quantitative recording and oil sampling are completed.

Publication (bulletin) No.: CN210483719U, publication (public notice) day: 2020-05-08 is a high water content period oil well sampling device, including the sampling bucket, set up on the lateral wall of sampling bucket and can show the liquid column height reading portion of the interior liquid level of sampling bucket, the top of sampling bucket sets up the sample connection that can seal and can open, can seal in the sample connection and insert and establish the well head sampler, the well head sampler is including can seal the sealing plug that fills in the sample connection prevents that the sample liquid from spattering outward, wear to establish liquid inlet hose and exhaust hose on the sealing plug, the lateral wall bottom of sampling bucket sets up the leakage fluid dram that link up, the exhaust hose is arranged in discharging the bucket and takes a sample the gas that separates in the liquid, the leakage fluid dram is arranged in discharging the bucket and takes a sample the water that separates in the liquid. The device can read the liquid level in the device directly perceivedly, realizes the initial separation of oil gas water to can prevent that liquid from spattering outward, thereby effectively reduce high moisture phase sample in-process operator intensity of labour, improve work efficiency.

Publication (bulletin) No.: CN201071717Y, publication (public notice) day: 2008-06-11 discloses a crude oil sampler used in the petroleum industry, which is used for taking oil samples in oil wells and metering stations, and is particularly suitable for taking high-water-content oil samples. The sampler comprises a barrel body and a water outlet, wherein a liquid inlet is arranged at the upper part of the barrel body, a barrel cover is arranged at the top end of the barrel body, and the barrel cover is communicated with an exhaust pipe. The sampler is used for sampling oil samples, so that the oil samples are not splashed, the environment is not polluted, dirt does not need to be cleaned, and the sampler is easy and sanitary. The utility model discloses be convenient for sample, portable, be convenient for survey to be favorable to oil gas water quickly separating.

Technical scheme and the technical problem that will solve and the beneficial effect who produces of above disclosure technique all with the utility model discloses inequality, perhaps technical field or application scenario are different, are directed to the utility model discloses more technical problem and the beneficial effect that will solve, above open technical document all do not have the technological inspiration.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a high water well oil sampling device that contains to the above-mentioned defect that prior art exists, the oil dispersing plate makes the fluid separation, according to the heavy characteristic of oily light water, the stratum water of separation just flows from the liquid outlet of lower part, oil will come up in the oil storage section of thick bamboo, when the pure oil in the oil storage section of thick bamboo reaches certain volume, take out the pure oil in the oil storage section of thick bamboo to reach and not destroy the environment and the production data in the completion oil field that can be full again, and need not emit the stratum water of producing again. The operation is very convenient and fast.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

high water-cut well oil sampling device, including the oil storage cavity, still include:

the oil dispersing plate is fixed inside the oil storage cavity, and the vertical surface of the oil dispersing plate corresponds to the liquid inlet of the oil storage cavity.

Furthermore, the upper side edge of the oil dispersing plate is fixedly connected with the inner wall of the oil storage cavity in a closed manner, and the left side edge and the right side edge of the oil dispersing plate are fixedly connected with the inner wall of the oil storage cavity in a closed manner.

Furthermore, constitute the oil dispersing passageway between oil dispersing plate and the oil storage cavity, constitute the lower port of oil dispersing passageway between the lower side of oil dispersing plate and the oil storage intracavity wall.

Furthermore, the oil storage cavity is also provided with a sampling port, the sampling port is close to the top end of the oil storage cavity, the sampling port is connected with a sampling tube, and a sampling valve is installed on the sampling tube.

Furthermore, the oil storage cavity is also provided with an oil return port, the oil return port is connected with the lower end of a back pressure gate of the production flow of the oil production well through an oil return pipe, and the oil return pipe is provided with a liquid outlet valve.

Furthermore, the liquid inlet of the oil storage cavity is connected with the upper end of a back pressure gate of the production process of the oil production well through a liquid inlet pipe, and a liquid inlet valve is installed on the liquid inlet pipe.

Compared with the prior art, the utility model following beneficial effect has:

when needs sample, the feed liquor valve of device, the play liquid valve is opened, control back pressure gate lets the extraction liquid flow through high moisture sampling device, oil-water mixture liquid gets into the device this moment after, spout earlier on the oil dispersion board, make oil, water carries out abundant separation, because the heavy characteristic of oily light water, the stratum water of adopting just flows out from the play liquid valve of lower part, it is internal that oil just floats the upper portion oil storage cavity of device, through the separation of a period of time like this, after the oil storage cavity of device is full of pure oil, the sampling valve on the opening device, emit pure oil, can accomplish the data of the recorded oil macrosample. After the operation is finished, the normal production flow state is entered as long as the large back pressure gate is opened and the liquid inlet valve and the liquid outlet valve of the high water content sampling device are closed. If daily oil small sample recording is carried out, the oil storage operation is not needed, and the recording can be carried out by only opening the liquid inlet valve and directly taking the oil from the sampling valve 3. The operation is very convenient, clean and fast.

Drawings

Fig. 1 is a schematic structural diagram of the high water cut well oil sampling device of the present invention;

fig. 2 is a schematic cross-sectional structure diagram of the oil storage cavity and three oil plates.

In the figure: the liquid inlet valve 1, the main valve 2, the sampling valve 3, the liquid outlet valve 4, the back pressure gate 5, the oil storage cavity 6 and the oil dispersing plate 7.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1:

referring to fig. 1 to 2, the present invention provides a technical solution:

high water-cut well oil sampling device, including oil storage cavity 6, still include:

and the oil dispersing plate 7 is fixed in the oil storage cavity, and the vertical surface of the oil dispersing plate corresponds to the liquid inlet of the oil storage cavity.

Furthermore, the oil storage cavity is also provided with a sampling port, the sampling port is close to the top end of the oil storage cavity, the sampling port is connected with a sampling tube, and a sampling valve 3 is arranged on the sampling tube.

Furthermore, the oil storage cavity is also provided with an oil return port, the oil return port is connected with the lower end of a back pressure gate 5 of the production process of the oil production well through an oil return pipe, and the oil return pipe is provided with a liquid outlet valve 4.

Further, the liquid inlet of the oil storage cavity is connected with the upper end of a back pressure gate of the production process of the oil production well through a liquid inlet pipe, and a liquid inlet valve 1 is installed on the liquid inlet pipe.

As shown in figure 1, the oil storage cavity is a cylinder 6, the liquid inlet valve 1 on the device is connected with the upper part of the back pressure gate 5 of the production flow of the oil production well, the liquid outlet valve 4 of the device is connected with the lower part of the back pressure gate 5, when sampling is needed, the liquid inlet valve 1 and the liquid outlet valve 4 of the device are opened, the back pressure gate 5 is controlled to enable produced liquid to flow through the high water content sampling device, at the moment, oil-water mixed liquid enters the device and is firstly sprayed onto the oil dispersing plate 7, so that oil and water are fully separated, due to the characteristic of heavy oil and water, produced stratum water flows out from the liquid outlet valve 4 at the lower part, the oil floats into the upper oil storage cavity 2 of the device, and after a period of separation, after the oil storage cavity 2 of the device is filled with pure oil, the sampling valve 3 on the device is opened, and the pure oil is discharged, so that the data of oil bulk samples can be recorded. After the operation is finished, the normal production flow state is entered as long as the large back pressure gate 5 is opened and the liquid inlet valve 1 and the liquid outlet valve 4 of the high water content sampling device are closed. If daily oil small sample recording is carried out, the oil storage operation is not needed, and the recording can be carried out by only opening the liquid inlet valve 1 and directly taking the oil from the sampling valve 3. The operation is very convenient, clean and fast.

Example 2:

referring to fig. 1 to 2, the present invention provides a technical solution:

Example 3:

referring to fig. 1 to 2, the present invention provides a technical solution:

Although fig. 1 to 2 are used in all the above embodiments, it is obvious to those skilled in the art that separate drawings are not shown as long as the parts or structural features missing in the embodiments are removed from the drawings. As will be clear to the skilled person. Of course, the embodiments with more components are only the preferred embodiments, and the embodiments with fewer components are the basic embodiments, but the basic utility model objects can also be achieved, so all these are within the protection scope of the present invention.

All parts and parts which are not discussed in the present application and the connection mode of all parts and parts in the present application belong to the known technology in the technical field, and are not described again. Such as welding, threaded connections, etc.

In the present application, the term "plurality" means two or more unless expressly defined otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or unit indicated must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. High water-cut well oil sampling device, including the oil storage cavity, its characterized in that still includes:

the oil dispersing plate is fixed inside the oil storage cavity, and the vertical surface of the oil dispersing plate corresponds to the liquid inlet of the oil storage cavity;

the upper side edge of the oil dispersion plate is fixedly connected with the inner wall of the oil storage cavity in a closed manner, and the left side edge and the right side edge of the oil dispersion plate are fixedly connected with the inner wall of the oil storage cavity in a closed manner;

an oil dispersing channel is formed between the oil dispersing plate and the oil storage cavity, and a lower port of the oil dispersing channel is formed between the lower side edge of the oil dispersing plate and the inner wall of the oil storage cavity;

the oil storage cavity is also provided with a sampling port, the sampling port is close to the top end of the oil storage cavity, the sampling port is connected with a sampling pipe, and a sampling valve is arranged on the sampling pipe;

the oil storage cavity is also provided with an oil return port, the oil return port is connected with the lower end of a back pressure gate of the production flow of the oil production well through an oil return pipe, and a liquid outlet valve is mounted on the oil return pipe;

the liquid inlet of the oil storage cavity is connected with the upper end of a back pressure gate of the production flow of the oil production well through a liquid inlet pipe, and a liquid inlet valve is installed on the liquid inlet pipe.