CN104599472A - Equipment and method for acquiring working parameters of oil well - Google Patents

Abstract

The invention discloses an oil well working parameter collection device, which comprises a front-end data collection device, a routing node device, a gateway node device and a server which are sequentially connected through a wireless transmission link. The invention also discloses a method for collecting working parameters of an oil well, which mainly utilizes a front-end data collecting device, a routing node device and a gateway node device to send data, form frames and build a multi-hop network. Through the oil well operating parameter acquisition equipment and acquisition method of the present invention, the oil well operating parameters can be remotely wirelessly and automatically collected, which solves the problem that the oil well abnormality cannot be found in time in the prior art.

Description

Oil well working parameter acquisition equipment and acquisition method

technical field

The invention belongs to the technical field of oil field control, and in particular relates to an oil well operating parameter acquisition device. The invention also relates to a method for acquiring oil well operating parameters by using the oil well operating parameter acquisition device.

Background technique

Petroleum resources are an important strategic resource of the country, but because most of the oil wells are widely distributed and located in remote places, there are some problems in the management and data collection and processing of oil wells. For example, the monitoring of oil wells is mainly manual, and abnormal conditions in oil wells cannot be discovered in time and measures can be taken in time, which may lead to theft of crude oil, reduction of crude oil production, shortened service life of equipment, increased energy consumption, and sometimes even serious serious problems. economic losses, reducing economic benefits.

Contents of the invention

The purpose of the present invention is to provide a device for collecting operating parameters of an oil well, which solves the problem that the oil well operation cannot be effectively supervised in the prior art.

Another object of the present invention is to provide a method for collecting oil well operating parameters by using the above oil well operating parameter acquisition equipment.

The technical solution adopted in the present invention is: oil well working parameter collection equipment, including a front-end data collection device, a routing node device, a gateway node device and a server sequentially connected through a wireless transmission link.

The present invention is also characterized in that:

The front-end data acquisition device includes a main control unit a, and the main control unit a is respectively connected with a wireless transceiver module a, a sensor element and a display module.

Main control unit a adopts ARM S3C2410 chip; wireless transceiver module a adopts CC2430 chip; display module is LCD display; sensing element is one of current sensor, pressure sensor, load sensor, displacement sensor or temperature sensor.

The routing node device includes a main control unit b, and the main control unit b is respectively connected with a wireless transceiver module b and a storage unit a.

Main control unit b adopts ARM S3C2410 chip; wireless transceiver module b adopts CC2430 chip.

The gateway node device includes a main control unit c, which is connected to the wireless transceiver module c and the storage unit b respectively.

The main control unit c adopts ARM S3C6410 chip; the wireless transceiver module c adopts CC2430 chip.

Another technical solution adopted in the present invention is: the method for collecting oil well operating parameters by using the above-mentioned oil well operating parameter acquisition equipment, specifically implemented according to the following steps:

Step 1. The front-end data acquisition device collects the working parameter data of the oil well through the sensing element, and uses the display module for real-time display. At the same time, the main control unit a in the front-end data acquisition device frames the data collected by the sensing element, and then wirelessly The transceiver module a sends the frame data through the wireless transmission link;

Step 2. After the routing node device receives the data sent by the front-end data acquisition device in the form of frames in step 1 through the wireless transceiver module b, on the one hand, it temporarily stores the data through the storage unit a to buffer the data; on the other hand, through the wireless multi-hop The network sends the data through the wireless transmission link;

Step 3, after the gateway node device receives the data sent by the routing node device in the form of a frame in step 2 through the wireless transceiver module c, on the one hand, the data is temporarily stored by the storage unit b to buffer the data; on the other hand, the gateway node device acts as The coordinator dynamically builds a wireless network, builds a multi-hop network, and sends the received data to the server for real-time monitoring.

Another technical solution of the present invention is characterized in that:

The specific steps for framing the data in the above step 1 are as follows:

Step 1.1, cutting the bit data information by 8 bits;

Step 1.2, add 1 stop bit before every 8 data bits;

Step 1.3, add 1 parity bit and 1 stop bit after every 8 data bits, the format of the final frame is as follows:

start bit data bit parity bit stop bit (1 person) (8 bits) (1 person) (1 person)

The specific steps for building a multi-hop network in the above step 3 are as follows:

Step 3.1, first the front-end data acquisition device and the routing node device scan the network at regular intervals;

Step 3.2, when the front-end data acquisition device and the routing node device discover the wireless network established by the gateway node device, select the network, and send an application to join the network to the gateway node device;

Step 3.3, the gateway node device checks its own association table according to the received application for joining the network, and judges whether the network node is already in its association table. If it already exists, it will obtain its network address; if it does not exist, it will assign A unique network address is given to the network node. If the network node is allowed to join, the gateway node device creates an entry in its association table, takes the network node as its child node, and informs the network node that it has successfully joined the network.

The beneficial effects of the present invention are: the oil well operating parameter acquisition equipment and acquisition method of the present invention can remotely and wirelessly automatically collect the oil well operating parameters, and automatically send the operating parameters through a wireless transmission link. The present invention has a high degree of automation, safety and reliability The advantage of this method effectively solves the problem that the abnormal situation of the oil well cannot be found in time in the prior art.

Description of drawings

Fig. 1 is the structural representation of the oil well operating parameter acquisition equipment of the present invention;

Fig. 2 is the structural representation of front-end data acquisition device in Fig. 1;

Fig. 3 is a schematic structural diagram of the routing node device in Fig. 1;

FIG. 4 is a schematic structural diagram of the gateway node device in FIG. 1 .

In the figure, 1. front-end data acquisition device, 2. routing node device, 3. gateway node device, 4. server, 5. wireless transmission link.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

As shown in FIG. 1 , the oil well operating parameter acquisition device of the present invention includes a front-end data acquisition device 1 , a routing node device 2 , a gateway node device 3 and a server 4 sequentially connected through a wireless transmission link 5 . Wherein, as shown in FIG. 2 , the front-end data acquisition device 1 includes a main control unit a, and the main control unit a is respectively connected with a wireless transceiver module a, a sensor element and a display module. Among them, the display module can be an LCD display, and the sensing element can be a current sensor, a pressure sensor, a load sensor, a displacement sensor or a temperature sensor; as shown in Figure 3, the routing node device 2 includes a main control unit b, on which The wireless transceiver module b and the storage unit a are respectively connected; as shown in FIG. 4 , the gateway node device 3 includes a main control unit c, and the main control unit c is connected to the wireless transceiver module c and the storage unit b respectively.

The specific steps of the oil well operating parameter acquisition method using the oil well operating parameter acquisition equipment are as follows:

Step 1. Place the front-end data acquisition device 1 on the wellhead equipment of the oil well. The front-end data acquisition device 1 collects the working parameter data of the oil well through the sensor element, and uses the display module for real-time display. At the same time, the main control unit in the front-end data acquisition device 1 a frame the data collected by the sensing element, and then the wireless transceiver module a sends the frame data through the wireless transmission link 5;

The specific steps for framing the data are as follows:

Step 1.1, cutting the bit data information by 8 bits;

Step 1.2, add 1 stop bit before every 8 data bits;

Step 1.3, add 1 parity bit and 1 stop bit after every 8 data bits, the format of the final frame is as follows:

start bit data bit parity bit stop bit (1 person) (8 bits) (1 person) (1 person)

Step 2, after the routing node device 2 receives the data sent by the front-end data acquisition device 1 in the form of frames in step 1 through the wireless transceiver module b, on the one hand, it temporarily stores the data through the storage unit a to buffer the data; The multi-hop network sends the data through the wireless transmission link 5;

Step 3, after the gateway node device 3 receives the data sent by the routing node device 2 in the form of a frame in step 2 through the wireless transceiver module c, on the one hand, the data is temporarily stored by the storage unit b to buffer the data; on the other hand, the gateway node The device 3 acts as a coordinator to dynamically build a wireless network, build a multi-hop network, and send the received data to the server 4 to realize real-time monitoring.

The specific steps to build a multi-hop network are as follows:

Step 3.1, first the front-end data acquisition device 1 and the routing node device 2 scan the network at regular intervals;

Step 3.2, when the front-end data collection device 1 and the routing node device 2 discover the wireless network formed by the gateway node device 3, select the network, and send an application for joining the network to the gateway node device 3;

Step 3.3, the gateway node device 3 checks its own association table according to the received application for joining the network, and judges whether the network node is already in its association table. If it already exists, it will obtain its network address; if it does not exist, it will Assign a unique network address to the network node, if the network node is allowed to join, the gateway node device 3 creates an entry in its association table, takes the network node as its child node, and informs the network node that it has successfully joined the network .

The server 4 can further transmit the data to the cloud computing platform in a wired or wireless manner for post-processing.

The above-mentioned main control unit a and main control unit b both adopt ARM S3C2410 chip, and the main control unit c adopts ARM S3C6410 chip; the above-mentioned wireless transceiver module a, wireless transceiver module b, and wireless transceiver module c all use CC2430 chip.

The main control unit a is used to ensure that the front-end data acquisition device 1 normally collects the working parameter data of the oil well through the sensor element to maintain the normal operation of the system, and at the same time controls the data transmission of the wireless transceiver module a and packs the information data; the wireless transceiver module a is used for The oil well working parameter data is sent through the wireless transmission link 5; the sensing element is used for collecting the oil well working parameter data; the display module is used for displaying the collected oil well working parameter data.

The main control unit b is used to control the wireless transceiver module b to establish wireless data communication between the wireless transceiver module a and the wireless transceiver module b; the wireless transceiver module b is used to receive the oil well operating parameter data sent by the front-end data acquisition device 1; the storage unit a is used to temporarily store the oil well operating parameter data sent by the front-end data acquisition device 1 to buffer the data.

The main control unit c is used to control the wireless transceiver module c to establish wireless data communication between the wireless transceiver module b and the wireless transceiver module c; the wireless transceiver module c is used to receive the oil well operating parameter data sent by the routing node device 2; the storage unit b It is used for temporarily storing the oil well operating parameter data sent by the routing node device 2 to buffer the data.

The front-end data acquisition device 1 can be realized by multi-threading: main thread, receiving sub-thread (receiving sensor element data), sending sub-thread, and displaying sub-thread.

Among them, the working steps of the main thread software are as follows:

1. Initialize the serial port, set the baud rate, the number of data bits, the number of stop bits, whether there is software

Hardware flow control, etc.;

2. Start the power saving mode and detect the serial port command;

3. Continue to wait for a collection command?

4. If there is no acquisition command, return to 2.

5. If there is a collection command, start and configure the wireless transceiver module, establish wireless communication, and start receiving sub-threads (receiving sensor element data), sending sub-threads, and displaying sub-threads at the same time.

6. Wait for the thread to end.

7. Exit

The working steps of receiving sub-threads (receiving sensor element data) are as follows:

1. Start the receiving sub-thread;

2. Perform D/A conversion;

3. Calculate the pressure data f;

4. Is the judgment over?

5. If yes, exit the child thread;

6. If no, return to 2.

The working steps of sending sub-threads are as follows:

1. Start the sending sub-thread;

2. Determine whether there is data to send?

3. If none, return to 2;

4. If there is, only send data f to the serial port;

5. Is the judgment over?

6. If not finished, return to 2;

7. If it ends, exit the child thread.

The working steps of displaying sub-threads are as follows:

1. Start the display sub-thread;

2. Determine whether f is empty?

3. If f is empty, return to 2;

4. If f is not empty, it will be displayed on the LCD;

5. Is the judgment over?

6. If not finished, return to 2;

If it ends, exit the child thread.

The routing node device 2 is also realized by multi-threading: main thread, receiving sub-thread (receiving the oil well head parameter data sent by the front-end data acquisition device 1), and sending sub-thread.

Among them, the working steps of the main thread software are as follows:

1. Initialize the serial port, set the baud rate, the number of data bits, the number of stop bits, whether there is software and hardware flow control, etc.;

2. Send collection instructions to the serial port;

3. Read the serial port, is there any data?

4. If none, return to 2;

5. If yes, configure the wireless module;

6. Start receiving sub-threads and sending sub-threads;

7. Wait for the thread to end.

The working steps of receiving the sub-thread (receiving the oil well head parameter data sent by the front-end data acquisition device 1) are as follows:

1. Start the receiving sub-thread;

2. Read the serial port and receive the wellhead pressure data f;

3. Determine whether the data is over?

4. If not, return to 2;

5. If yes, then store the data to a mass storage unit;

6. Do you want to quit?

7. If not, return to 2;

8. If yes, exit the thread.

The working steps of sending sub-threads are as follows:

1. Start the sending sub-thread;

2. Determine whether there is data to send?

3. If none, return to 2;

4. If there is, only send data to the serial port;

5. Is the judgment over?

6. If not finished, return to 2;

7. If it ends, exit the child thread.

The gateway node device 3 is also realized by multi-threading: main thread, receiving sub-thread (receiving oil well head parameter data sent by the routing node device 2), and sending sub-thread.

Among them, the working steps of the main thread software are as follows:

1. Initialize the serial port, set the baud rate, the number of data bits, the number of stop bits, whether there is software and hardware flow control, etc.;

2. Send collection instructions to the serial port;

3. Read the serial port, is there any data?

4. If none, return to 2;

5. If yes, configure the network module;

6. Start receiving sub-threads and sending sub-threads;

7. Wait for the thread to end.

The working steps of receiving sub-thread (receiving the oil well wellhead parameter data sent by routing node device 2) are as follows:

1. Start the receiving sub-thread;

2. Read the serial port and receive data;

3. Determine whether the data is over?

4. If not, return to 2;

5. If yes, then store the data to a mass storage unit;

6. Do you want to quit?

7. If not, return to 2;

8. If yes, exit the thread.

The working steps of sending sub-threads are as follows:

1. Start the sending sub-thread;

2. Determine whether there is data to send?

3. If none, return to 2;

4. If there is, send the data through the network module;

5. Is the judgment over?

6. If not finished, return to 2;

If it ends, exit the child thread.

The working parameters of the oil well that can be collected by the present invention include the wellhead pressure data of the oil well, the wellhead temperature data of the oil well, and the displacement and current working data of the wellhead of the oil well, and the corresponding sensing elements are respectively pressure sensors, temperature sensors, displacement sensors and current sensors .

Claims (10)

1. oil well running parameter collecting device, it is characterized in that, comprise the front-end data acquisition device (1), routing node device (2), gateway node device (3) and the server (4) that are connected by wireless transmission link (5) successively.

2. oil well running parameter collecting device according to claim 1, is characterized in that, described front-end data acquisition device (1) comprises main control unit a, main control unit a is connected to radio receiving transmitting module a, sensing element and display module.

3. oil well running parameter collecting device according to claim 2, is characterized in that, described main control unit a adopts ARM S3C2410 chip; Described radio receiving transmitting module a adopts CC2430 chip; Described display module is LCD display; Described sensing element is the one in current sensor, pressure transducer, load transducer, displacement transducer or temperature sensor.

4. oil well running parameter collecting device according to claim 1, is characterized in that, described routing node device (2) comprises main control unit b, main control unit b is connected to radio receiving transmitting module b and storage unit a.

5. oil well running parameter collecting device according to claim 4, is characterized in that, described main control unit b adopts ARM S3C2410 chip; Described radio receiving transmitting module b adopts CC2430 chip.

6. oil well running parameter collecting device according to claim 1, is characterized in that, described gateway node device (3) comprises main control unit c, and main control unit c is connected respectively with radio receiving transmitting module c and storage unit b.

7. oil well running parameter collecting device according to claim 6, is characterized in that, described main control unit c adopts ARM S3C6410 chip; Described radio receiving transmitting module c adopts CC2430 chip.

8. utilize the oil well running parameter collecting device described in claim 1 to carry out the method for oil well running parameter collection, it is characterized in that, specifically implement according to following steps:

Step 1, front-end data acquisition device (1) gather oil well running parameter data by sensing element, display module is utilized to show in real time, simultaneously, the data that sensing element collects by the main control unit a in front-end data acquisition device (1) carry out framing, and then radio receiving transmitting module a is sent frame data by wireless transmission link (5);

After the data that step 2, routing node device (2) are sent in the form of frames by front-end data acquisition device (1) in radio receiving transmitting module b receiving step 1, carry out storing with buffered data to data by storage unit a on the one hand temporarily, by wireless multi-hop network, data are sent by wireless transmission link (5) on the other hand;

After the data that step 3, gateway node device (3) are sent in the form of frames by radio receiving transmitting module c receiving step 2 routing nodes device (2), carry out storing with buffered data to data by storage unit b on the one hand temporarily, on the other hand, gateway node device (3) is as the dynamic setting up wireless networks of telegon, build multihop network, the data received are sent to server (4) and realize Real-Time Monitoring.

9. oil well running parameter acquisition method according to claim 8, is characterized in that, carries out the concrete steps of framing as follows in described step 1 to data:

Step 1.1, Bit data information to be cut by 8;

1 position of rest is added before step 1.2, every 8 bit data positions;

Add 1 bit parity check position and 1 position of rest after step 1.3, every 8 bit data positions, the form of the frame finally obtained is as follows:

Start bit Data bit Parity check bit Position of rest (1) (8) (1) (1)

。

10. oil well running parameter acquisition method according to claim 8, it is characterized in that, the concrete steps building multihop network in described step 3 are as follows:

Step 3.1, first front-end data acquisition device (1) and routing node device (2) scan for networks at regular intervals;

Step 3.2, when front-end data acquisition device (1) and routing node device (2) find the wireless network that gateway node device (3) sets up, select this network, and send to gateway node device (3) and add network application;

Step 3.3, gateway node device (3) add network application according to what receive, check the contingency table of self, judge this network node whether in its contingency table, if existed, then will obtain its network address; If there is no, then give this network node by the network address unique for distribution one, if this network node adds permitted, gateway node device (3) creates a list item in its contingency table, using this network node as its child node, and inform that this network node adds network success.