Oil-gas-water separation, metering and heating digital intelligent integrated device

Abstract

The utility model discloses an oil-gas-water separation, metering and heating digital intelligent integrated device, which comprises an automatic control cabinet, an automatic well selection device, an oil-gas-water separation cavity, an oil metering cavity and a collection pipeline, the oil-gas-water separation cavity is communicated with an exhaust pipeline and a drainage pipeline, the exhaust pipeline is provided with a high-efficiency mist catcher and is communicated with the collection pipeline, and the oil metering cavity is communicated with the collection pipeline. The oil metering cavity is provided with an exhaust pipeline and a mixed liquid pipeline, the exhaust pipeline and the mixed liquid pipeline are both communicated with the collecting pipeline, an electromagnetic three-way reversing valve is arranged on the portion, between the oil-gas separation cavity and the oil metering cavity, of the liquid conveying pipeline, and an electromagnetic flowmeter is arranged on the drainage pipeline. According to the utility model, the oil-gas-water separation cavity, the oil metering cavity and the related flow meters are utilized, and the daily output and the moisture content of oil, gas and water are automatically calculated by a digital model according to the accumulative metering record result of oil, gas and water in a period through the automatic control cabinet.

Description

Technical Field

[0001] The utility model relates to the technical field of oil extraction, in particular to an oil, gas and water separation, metering and heating digital and intelligent integrated device. Background Art

[0002] In the field of oil and gas gathering and transportation, with the continuous expansion of oilfield production and long-term water injection development, many onshore and offshore oilfields at home and abroad have entered a period of high or extremely high water cuts. To address the problems caused by high-water-cut produced fluids, a common approach is to add cyclone separation equipment before the three-phase separator to separate the produced fluids. However, in actual field use, the associated gas in the produced fluid is often not completely separated in the first-stage three-phase separator, and some gas still enters the separation equipment with the incoming liquid. The phenomenon of gas in the cyclone separator can be categorized as "gas nucleation" and "gas-carrying oil." The main reason for the former is that after a certain amount of gas enters the cyclone element, the centrifugal force causes the mixture of lighter components (air), medium components (oil), and heavier components (water) to initially gather towards the center of the cyclone due to the different densities. The gas cannot be discharged from the overflow port in time and instead gathers at the center to form a "gas nucleus." The presence of this gas core will occupy the spatial position of the "oil core", preventing the oil phase from gathering in the center and being discharged from the overflow port, which in turn leads to poorer separation performance of the equipment. The latter is caused by the oil, gas and water mixture entering the separation equipment under a certain pressure and rotating at high speed inside due to the action of the swirling element. At the same time, the associated gas of the produced liquid is divided into a large number of tiny bubbles by the shearing effect of the high-speed rotating fluid. The small bubbles will quickly converge toward the center due to the action of centrifugal force. During this movement, they will collide and adhere to the oil droplets dispersed in the water, causing the tiny oil droplets that were originally difficult to separate to converge at the center. Ultimately, the gas phase and the oil phase are discharged from the overflow port together, thereby improving separation efficiency. However, it is impossible to record and calculate the amount of oil, gas, and water within a cycle.

[0003] In order to solve the above problems, the utility model provides an oil, gas and water separation, metering and heating digital integrated device to solve the problem that the amount of oil, gas and water cannot be recorded and calculated separately in the previous oil, gas and water separation process. Utility Model Content

[0004] The purpose of this utility model is to provide an oil, gas and water separation, metering and heating digital and intelligent integrated device, so as to achieve the purpose of automatically calculating the daily production and water content of oil, gas and water by a digital model based on the cumulative metering and recording results of oil, gas and water within a period.

[0005] To achieve the above purpose, the present invention provides the following solutions:

[0006] A digital and intelligent integrated device for oil, gas and water separation, metering and heating, comprising an automated control cabinet, an automatic well selection device, an oil, gas and water separation chamber, an oil metering chamber and a collection pipe, the oil, gas and water separation chamber being connected in sequence through a fluid transfer pipe; an exhaust pipe and a drainage pipe being connected to the oil, gas and water separation chamber; a high-efficiency mist collector being provided on the exhaust pipe and being connected to the collection pipe; a drainage pipe being connected to the collection pipe; a mixed liquid pipe being provided on the oil metering chamber; and both mixed liquid pipes being connected to the collection pipe; an electromagnetic three-way reversing valve being provided on the fluid transfer pipe between the oil, gas and water separation chamber and the oil metering chamber; an electromagnetic flowmeter being provided on the drainage pipe; and a swirl gas flowmeter being provided on the exhaust pipe; the automated control cabinet automatically calculates the daily production and water content of oil, gas and water by a digital model based on the cumulative metering record results of oil, gas and water within a period.

[0007] Preferably, the automatic well selection device comprises a multi-well confluence cavity for communicating with a plurality of oil wells and an electric actuator for controlling whether a single oil well is connected to the multi-well confluence cavity.

[0008] Preferably, the oil-gas-water separation chamber includes a tubular separation chamber, an electromagnetic liquid drain valve arranged on the tubular separation chamber, a float level gauge and a float interface gauge arranged in the tubular separation chamber.

[0009] Preferably, the oil metering chamber includes a first tubular column metering chamber, a second tubular column metering chamber, a float level gauge arranged in the first tubular column metering chamber and the second tubular column metering chamber, the electromagnetic three-way reversing valve arranged on the liquid delivery pipeline between the first tubular column metering chamber and the tubular column separation chamber, and an electromagnetic oil drain valve arranged on the first tubular column metering chamber and the second tubular column metering chamber.

[0010] Preferably, the first tubular column type metering cavity and the second tubular column type metering cavity are both provided with self-connecting pipes, and the self-connecting pipes are provided with differential pressure transmitters.

[0011] Preferably, it also includes a skid body, and the skid body includes a data acquisition room and an equipment room.

[0012] Preferably, it also includes a heat preservation box and a self-constant temperature heater.

[0013] Compared with the prior art, the utility model has achieved the following technical effects:

[0014] 1. The utility model utilizes an oil-gas-water separation chamber, an oil metering chamber, and related flow meters and uses an automated control cabinet to record the cumulative measurement results of oil, gas, and water within a cycle, and automatically calculates the daily production and water content of oil, gas, and water using a digital model. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 It is a schematic diagram of the structure flow of the utility model;

[0017] Figure 2 This is a structural outline diagram of the utility model;

[0018] Among them, 1. Automation control cabinet; 2. Liquid infusion pipeline; 3. High-efficiency mist replenisher; 4. Oil well; 5. Electric actuator; 6. Collection pipeline; 7. Drainage pipeline; 8. Mixed liquid pipeline; 9. Oil metering chamber; 10. Solenoid three-way reversing valve; 11. Oil, gas and water separation chamber; 12. Automatic well selection device; 13. Data acquisition room; 14. Equipment room. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] The purpose of this utility model is to provide an oil, gas and water separation, metering and heating digital and intelligent integrated device, so as to achieve the purpose of automatically calculating the daily production and water content of oil, gas and water by a digital model based on the cumulative metering and recording results of oil, gas and water within a period.

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0022] refer to Figures 1 to 2, an oil, gas and water separation, metering and heating digital intelligent integrated device, comprising an automated control cabinet, an automatic well selection device, an oil, gas and water separation chamber, an oil metering chamber and a collection pipe, which are sequentially connected through a liquid transmission pipe, the oil, gas and water separation chamber is connected with an exhaust pipe and a drainage pipe, the exhaust pipe is provided with a high-efficiency mist collector and is connected with the collection pipe, the drainage pipe is connected with the collection pipe, the oil metering chamber is provided with a mixed liquid pipe, the mixed liquid pipes are all connected with the collection pipe, and the gaps between the oil, gas and water separation chamber and the oil metering chamber are connected. An electromagnetic three-way reversing valve is provided on the infusion pipeline, an electromagnetic flowmeter is provided on the drainage pipeline, and a swirl gas flowmeter is provided on the exhaust pipeline. The automatic control cabinet automatically calculates the daily production and water content of oil, gas and water by a digital model based on the cumulative measurement and recording results of oil, gas and water within a period; in the utility model, an oil-gas-water separation chamber, an oil metering chamber and related flow meters are utilized and an automatic control cabinet is used to automatically calculate the daily production and water content of oil, gas and water by a digital model based on the cumulative measurement and recording results of oil, gas and water within a period.

[0023] refer to Figure 1 The automatic well selection device includes a multi-well confluence cavity for communicating with multiple oil wells and an electric actuator for controlling whether a single oil well is connected to the multi-well confluence cavity.

[0024] refer to Figure 1 The oil-gas-water separation chamber includes a tubular separation chamber, an electromagnetic drain valve arranged on the tubular separation chamber, a float level gauge and a float level gauge arranged in the tubular separation chamber.

[0025] refer to Figure 1 The oil metering chamber includes a first tubular column metering chamber, a second tubular column metering chamber, a float level gauge arranged in the first tubular column metering chamber and the second tubular column metering chamber, the electromagnetic three-way reversing valve arranged on the liquid delivery pipeline between the first tubular column metering chamber and the tubular column separation chamber, and an electromagnetic oil drain valve arranged on the first tubular column metering chamber and the second tubular column metering chamber.

[0026] refer to Figure 1 The first column type metering cavity and the second column type metering cavity are both provided with self-connecting pipes, and the self-connecting pipes are provided with differential pressure transmitters.

[0027] Furthermore, it also includes a skid body, which includes a data acquisition room and an equipment room.

[0028] Furthermore, it also includes a heat preservation box and a self-constant temperature heater.

[0029] The specific working process of this utility model is as follows:

[0030] The device is started by starting the device through the man-machine interface on the automatic control cabinet. After the device is started, the automatic well selection device automatically runs to the production well site that needs to be separated and metered. The electromagnetic water discharge valve on the oil-gas-water separation chamber is closed, and the electromagnetic three-way reversing valve on the oil metering chamber is reversed to the first pipe column type metering chamber. The electromagnetic oil discharge valves on the first pipe column type metering chamber and the second pipe column type metering chamber are closed.

[0031] The oil-gas-water mixture produced by the production oil well enters the oil-gas-water separation chamber of the intelligent integrated device through the automatic well selection device and is separated into oil, gas and water under the action of cyclone. The separated gas is subjected to secondary separation by the high-efficiency mist eliminator on the exhaust pipeline at the top of the oil-gas-water separation chamber, and then the flow rate is measured by the swirl vortex gas flow meter. The separated gas is discharged through the exhaust pipeline, and the measurement results of the separated gas in the cycle are recorded and saved, achieving the measurement effect of the separated gas in the cycle.

[0032] The separated oil-water liquid is temporarily stored in the oil-gas-water separation chamber, and the oil-water interface is determined by the float ball interface meter and the separated water level is read. When the separated water level reaches the set height, the electromagnetic cut-off water discharge valve installed at the bottom of the oil-gas-water separation chamber is opened to discharge water, and the discharged water is measured by the electromagnetic flowmeter installed on the water discharge pipeline. When the separated water level drops to the lower limit value set by the float ball interface meter, the electromagnetic cut-off water discharge valve is closed, and the measurement data is recorded and saved, waiting for the next measurement cycle. The measurement data in the cycle is recorded and saved, achieving the measurement effect of the separated water in the measurement cycle.

[0033] Due to the continuous production of liquid in the production oil well, the water in the separation chamber is continuously discharged, and the oil level stored in the separation chamber gradually rises. When the oil level reaches a certain height, the oil enters the first pipe column type metering chamber through the overflow pipe and the electromagnetic three-way reversing valve installed on the separation chamber. When the oil level in the first pipe column type metering chamber reaches the set height, the electromagnetic three-way reversing valve is reversed to the second pipe column type metering chamber. At this time, the volume and weight of the oil in the first pipe column type metering chamber are calculated by using the numerical model according to the values of the float ball level meter and the differential pressure transmitter. After the calculation data are recorded and saved, the electromagnetic oil discharge valve on the first pipe column type metering chamber is opened to discharge oil. When the oil level in the first pipe column type metering chamber drops to zero of the float ball level meter, the electromagnetic oil discharge valve is closed, waiting for the next measurement cycle.

[0034] When the oil level in the float level gauge on the second column metering chamber reaches the set height, the electromagnetic three-way reversing valve switches the flow of oil to the first column metering chamber. The volume and weight of the oil in the second column metering chamber are calculated using a digital model based on the values ​​of the float level gauge and differential pressure transmitter. After the calculated data is recorded and saved, the electromagnetic drain valve on the second column metering chamber opens to release the oil, which is then discharged through the oil drain pipeline. When the oil level in the second column metering chamber drops to the zero position of the float level gauge, the electromagnetic drain valve closes, awaiting the next metering cycle. The separated oil is metered alternately through the first column metering chamber and the second column metering chamber. The metering data within the cycle is accumulated, recorded, and saved, achieving the metering effect of separating the oil within the metering cycle.

[0035] After the metering cycle is over, the automatic control cabinet automatically calculates the daily production and water content of oil, gas and water based on the cumulative metering records of oil, gas and water during the cycle using a digital model.

[0036] Adaptive changes based on actual needs are all within the protection scope of this utility model.

[0037] It should be noted that it is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all perspectives, the embodiments should be considered as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims, not the foregoing description, and it is intended that all variations within the meaning and range of equivalents of the claims be included within the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

Claims

1. An integrated digital and intelligent device for oil, gas and water separation, metering and heating, characterized in that: It includes an automated control cabinet, an automatic well selection device, an oil-gas-water separation chamber, an oil metering chamber and a collection pipe, which are connected in sequence through a fluid transfer pipe. The oil-gas-water separation chamber is connected with an exhaust pipe and a drainage pipe. The exhaust pipe is provided with a high-efficiency mist collector and is connected with the collection pipe. The drainage pipe is connected with the collection pipe. The oil metering chamber is provided with a mixed liquid pipe, and the mixed liquid pipes are all connected with the collection pipe. An electromagnetic three-way reversing valve is provided on the fluid transfer pipe between the oil-gas-water separation chamber and the oil metering chamber, an electromagnetic flowmeter is provided on the drainage pipe, and a swirl gas flowmeter is provided on the exhaust pipe. The automated control cabinet automatically calculates the daily production and water content of oil, gas and water by a digital model based on the cumulative metering record results of oil, gas and water within a period.

2. The oil-gas-water separation, metering and heating digital-intelligence integrated device according to claim 1 is characterized in that: The automatic well selection device includes a multi-well confluence cavity for communicating with multiple oil wells and an electric actuator for controlling whether a single oil well is connected to the multi-well confluence cavity.

3. The oil-gas-water separation, metering and heating digital-intelligence integrated device according to claim 1 is characterized in that: The oil-gas-water separation chamber comprises a tubular column separation chamber, an electromagnetic liquid discharge valve arranged on the tubular column separation chamber, a float liquid level gauge and a float level gauge arranged in the tubular column separation chamber.

4. The oil-gas-water separation, metering and heating digital-intelligence integrated device according to claim 3 is characterized in that: The oil metering chamber includes a first tubular column metering chamber, a second tubular column metering chamber, a float level gauge arranged in the first tubular column metering chamber and the second tubular column metering chamber, the electromagnetic three-way reversing valve arranged on the liquid delivery pipeline between the first tubular column metering chamber and the tubular column separation chamber, and an electromagnetic oil drain valve arranged on the first tubular column metering chamber and the second tubular column metering chamber.

5. The oil-gas-water separation, metering and heating digital-intelligence integrated device according to claim 4 is characterized in that: The first tubular column type metering cavity and the second tubular column type metering cavity are both provided with self-connecting pipes, and the self-connecting pipes are provided with differential pressure transmitters.

6. The oil-gas-water separation, metering and heating digital-intelligence integrated device according to claim 1, characterized in that: It also includes a skid body, which includes a data acquisition room and an equipment room.

7. The oil-gas-water separation, metering and heating digital-intelligence integrated device according to claim 1 is characterized in that: It also includes a heat preservation box and a self-constant temperature heater.

Images