CN-121993739-A - Automatic single-quantity digital integrated sledge of unattended station and single-quantity control method

CN121993739ACN 121993739 ACN121993739 ACN 121993739ACN-121993739-A

Abstract

The invention discloses an automatic single-quantity digital integrated sledge of an unattended station, which is fixedly provided with a multi-way valve, a single-quantity instrument and an RTU control box, wherein a plurality of input ports at the upper part of the multi-way valve are correspondingly connected with oil inlet pipelines of a well group, a main oil outlet and a single-quantity outlet are arranged at the lower part of the multi-way valve, the main oil outlet is communicated with an oil collecting pipeline, the single-quantity outlet is communicated with the single-quantity instrument, an upper valve body and a rotary valve core are arranged in an inner cavity of the multi-way valve, a servo motor is fixedly arranged at the upper part of a shell of the multi-way valve, the servo motor is provided with an electric driving mechanism, the electric driving mechanism is electrically connected with the RTU control box, the single-quantity instrument is electrically connected with the RTU control box, and the RTU control box is connected with a terminal platform in real time. The invention also discloses an automatic single-quantity control method of the unmanned station integrated sledge. The invention belongs to the technical field of oil and gas extraction and gathering and transportation in an oil field, and solves the problems of low working efficiency in a manual acquisition mode of single-volume data of a site well group in the prior art.

Inventors

DU CHUNLONG
SUN YUXIN
WEI CHANGLIAN
CHEN LONG
BAI XUAN
ZHANG SHUAI
SONG TING
LI JIANZHONG
CHEN YANYUN
DENG LIANGGUANG
ZHAO HAIYONG
SU YONG
DING GAOXIANG
DU HONGMEI
KANG WEIFENG

Assignees

中国石油天然气股份有限公司

Dates

Publication Date: 20260508
Application Date: 20241107

Claims (8)

1. The automatic single-quantity digital integrated sledge of the unattended station is characterized by comprising a basic sledge (13), wherein a multi-way valve (6), a single-quantity instrument (7) and an RTU control box (11) are fixedly arranged on the upper surface of the basic sledge (13), a plurality of input ports are arranged on the upper part of the multi-way valve (6), each input port is correspondingly connected with an incoming oil pipeline (1) of a well group, a main oil outlet and a single-quantity outlet are arranged on the lower part of the multi-way valve (6) in an outward manner, the main oil outlet is communicated with an oil collecting pipeline (4), the single-quantity instrument (7) is communicated with the single-outlet in an outward manner, an upper valve body (17) and a rotary valve core (18) are arranged in an inner cavity of the multi-way valve (6), a servo motor (19) is fixedly arranged on the upper part of a shell of the multi-way valve (6), and the servo motor (19) is provided with an electric driving mechanism (16); The electric driving mechanism (16) is electrically connected with the RTU control box (11), the single measuring instrument (7) is electrically connected with the RTU control box (11), and the RTU control box (11) is connected with the terminal platform in real time.
2. The automatic single-quantity digital integrated sledge of an unattended station according to claim 1, wherein the upper valve body (17) is provided with a circle of flow holes (22) at intervals along the circumference, each flow hole (22) is communicated with one input port in a one-to-one correspondence manner, meanwhile, the center of the upper valve body (17) is provided with an axle center hole (21), and a transmission shaft (20) of the rotary valve core (18) upwards penetrates through the axle center hole (21) to be in transmission connection with an output shaft of the servo motor (19).
3. The automatic single-quantity digital integrated sledge of the unattended station according to claim 1, wherein a single-quantity channel is formed in the rotary valve core (18), the upper edge of the single-quantity channel can only be communicated with one circulation hole (22) of the upper valve body (17) at the same time, a baffle (23) is arranged at the inner edge of the upper port of the single-quantity channel, the lower port of the single-quantity channel is communicated with the single-quantity outlet in a sealing mode, so that the rotary valve core (18) can only be communicated with an incoming oil pipeline (1) of one well group at a time, and a gap is reserved between the rotary valve core (18) and the inner cavity annular wall of the multi-way valve (6).
4. The automatic single-quantity digital integrated skid of the unattended station according to claim 1, wherein the incoming oil pipeline (1) of each well group is communicated with an off-station purging pipeline (12) before being connected with a multi-way valve (6), a single outlet of the multi-way valve (6) is communicated with an inlet end of a single meter (7) through a single-quantity pipeline (5), a pressure meter I (9) and a temperature meter I (8) are respectively arranged on the single-quantity pipeline (5), and an outlet end of the single meter (7) is connected into an oil collecting pipeline (4).
5. The automatic single-quantity digital integrated sledge of the unattended station according to claim 1, wherein a pressure meter II (15) and a thermometer II (14) are arranged on a pipeline of a main oil outlet of the multi-way valve (6), the main oil outlet is divided into three branch lines from outside, the first branch line is communicated with the oil collecting pipeline (4) through a first in-station purging pipeline 2, the second branch line is communicated with the accident tank pipeline (3) through a second in-station purging pipeline (2), and the third branch line is communicated with the single-flow valve (10) through a third in-station purging pipeline (2).
6. The automated single-digit integrated sled of an unattended station according to claim 1, wherein the output end of the servo motor 19 is externally connected with a crank (24).
7. An automatic single-quantity control method for an unmanned station integrated sledge, which depends on any one of claims 1-6, and is characterized by being implemented according to the following steps: Firstly, introducing the oil from a specified well group into a single gauge (7), and then completing single gauge; At the same time, the oil from the other well groups flows through the corresponding circulation holes (22) of the upper valve body (17) and enters the oil collecting pipeline (4) through the main oil outlet of the multi-way valve (6); then, the single-volume data measured by the single-volume meter (7) is uploaded to the RTU control box (11), the RTU control box (11) is used for transmitting the single-volume data to the terminal platform, the yield analysis software calculates the accumulated difference value by calculating the relative displacement time of the rotary valve core (18) and the upper valve body (17), and the terminal platform is used for completing the statistical calculation of the single-volume data and report generation.
8. The automated single-dose control method of an unmanned station integrated skid of claim 7, wherein the single-dose operation of the designated well group is performed by: After the terminal platform sends out a well group oil selection instruction through the corresponding input ports of the multi-way valve (6), the RTU control box (11) sends out a specific well group number action instruction to the electric driving mechanism (16), the electric driving mechanism (16) controls the servo motor (19) to rotate by a corresponding angle to drive the rotary valve core (18) to rotate until the upper port of a single-volume channel of the rotary valve core (18) is aligned and communicated with the corresponding flow hole (22) of the upper valve body (17) of the selected well group oil, the selected well group oil flows through the oil inlet pipeline (1) to enter the single-volume channel in the rotary valve core (18), then enters the single-volume meter (7) along the single-volume pipeline (5) through the single-volume outlet at the bottom of the multi-way valve (6), and enters the oil collecting pipeline (4) after the single-volume is completed through the single-volume meter (7).

Description

Automatic single-quantity digital integrated sledge of unattended station and single-quantity control method Technical Field The invention belongs to the technical field of oil and gas extraction and gathering and transportation in an oil field, relates to an automatic single-quantity digital integrated sledge of an unattended station, and further relates to an automatic single-quantity control method of the automatic single-quantity digital integrated sledge of the unattended station. Background With the growth of the oil field exploitation years, the ground gathering and conveying system is gradually perfected, various gathering and conveying stations are gradually increased, the labor intensity of station operation management is increased, and the number of station work operators on duty is rapidly increased. For the conventional oil coming from the well group of the main unit, a combination mode of a single-quantity collecting pipe, a mixing collecting pipe and a metering device is adopted, each well group is matched with two paths of manual valves, one path of manual valves is used for metering, the other path of manual valves is used for mixing and then enters the ball collecting barrel, the oil coming flow is frequently switched by the well group oil metering depending on manual work, the labor intensity of operators is high, and the working efficiency is low. At present, the oil field is integrally propelled to the construction and operation of an unattended station, and part of stations are finished to be unattended, but because most of the stations are in use in a metering mode of manual switching by a main office, the automatic operation of the unattended station does not form a closed loop, and quite a lot of station well group single data still adopt the modes of manual handshaking data on site, manual input and manual recording of single report forms, the problems of non-uniform report form format, large data error and more manual calculation/input errors exist. Disclosure of Invention The invention aims to provide an automatic single-quantity digital integrated sledge for an unattended station, which solves the problems of non-uniform report format and large data error in the prior art that site well group single-quantity data still adopts a mode of manually handshaking data, manually inputting and manually recording single-quantity reports. The invention further aims to provide an automatic single-quantity control method for the unmanned station integrated sledge, which solves the problem of low working efficiency of a manual collection mode of single-quantity data of a station well group in the prior art. The technical scheme includes that the automatic single-quantity digital integrated sledge of the unattended station comprises a basic sledge, wherein a multi-way valve, a single-quantity instrument and an RTU control box are fixedly arranged on the upper surface of the basic sledge, a plurality of input ports are arranged on the upper part of the multi-way valve, each input port is correspondingly connected with an incoming oil line of a well group, a main oil outlet and a single-quantity outlet are externally arranged on the lower part of the multi-way valve, the main oil outlet is externally communicated with an oil collecting line, the single-quantity instrument is externally communicated with the single-quantity outlet, an upper valve body and a rotary valve core are arranged in an inner cavity of the multi-way valve, a servo motor is fixedly arranged on the upper part of a shell of the multi-way valve, and an electric driving mechanism is configured on the servo motor; the electric driving mechanism is electrically connected with the RTU control box, the single measuring instrument is electrically connected with the RTU control box, and the RTU control box is connected with the terminal platform in real time. The invention adopts another technical scheme that the automatic single-quantity control method of the unmanned station integrated sledge depends on the automatic single-quantity digital integrated sledge of the unmanned station and is implemented according to the following steps: Firstly, introducing the oil from a specified well group into a single gauge, and then completing single gauge; meanwhile, the oil from other well groups flows through the corresponding flow holes of the upper valve body and enters the oil collecting pipeline through the main oil outlet of the multi-way valve; And then, uploading the measured single-volume data to an RTU control box by the single-volume meter, transmitting the single-volume data to a terminal platform by the RTU control box, calculating an accumulated difference value by calculating the relative displacement time of the rotary valve core and the upper valve body by yield analysis software, and completing the statistical calculation and report generation of the single-volume data by the terminal platform. The invention has the advantage