CN115131311A - An online identification and management method of oil pipeline based on image recognition - Google Patents

Abstract

The invention discloses an on-line identification and management method for oil pipes based on image recognition. Input the required tubing information, and identify the basic information of the tubing coupling by scanning the ring code. Compared with the traditional method of stenciling the oil pipe, the above method can store more information, manage the oil pipe more quickly, repair or replace the faulty oil pipe in time, and improve the operation efficiency of the oil well.

Description

An online identification and management method of oil pipeline based on image recognition

technical field

The invention discloses and relates to the technical field of oil pipe management, in particular to an online identification and management method of oil pipes based on image recognition.

Background technique

The tubing coupling is an oilfield drilling tool that can be used to connect tubing to solve the problem that the existing coupling is prone to fatigue and fracture due to stress concentration. The structure of the tubing coupling is: the end of the tubing and the inner wall of the coupling are connected by a tapered thread, and the end of the coupling body and the tubing are connected by a flat thread with the same thread and pitch, which makes it easy to relieve the single tapered thread. The stress concentration at the root of the external thread of the connecting oil pipe is not easy to cause fatigue fracture, and the connection effect is good, which can effectively prevent the occurrence of the oil well pipe string breakage accident.

When drilling and workover equipment is operating, the on-site environmental conditions are harsh. When problems are found in the oil well operation, the staff should promptly bring up the tubing involved in the oil well operation for repair or replacement. If the tubing exceeds its service life, it may also cause damage to downhole operations. Influence or even lead to accidents, this process is cumbersome, labor-intensive, low safety and low efficiency.

At present, the main management method of oilfield tubing is as follows: the new tubing is stamped with a steel stamp at the 20 cm position of the pipe joint (for example, the year of production can be indicated); use. However, this management method is very simple, and it is difficult to show many information such as the usage time and working times of the oil pipe. Therefore, if the usage of the oil pipe can be effectively obtained, the problematic oil pipe can be repaired or replaced in time, thereby improving the operation efficiency of the oil well. It can reduce the labor burden for the staff. Therefore, it is a key part of oil well operation to propose a method that can identify and effectively manage the tubing, and it is an urgent problem to be solved.

SUMMARY OF THE INVENTION

In view of this, the present disclosure provides an oil pipe identification and management method based on image recognition technology, which can effectively obtain the usage of oil pipes, and can repair or replace problematic oil pipes in time, thereby improving oil well operation efficiency.

The technical solution provided by the present invention is, in particular, a method for on-line identification and management of oil pipes based on image recognition, comprising: milling the annular surface of the oil pipe coupling, and milling out a ring code that can be used for identification; The ring code enters the required oil pipe information in the database, and the basic information of the oil pipe coupling is identified by scanning the ring code.

Further, it specifically includes the following steps:

1) Milling on the surface of the annular cross-section of the tubing coupling, and milling out a ring code that can be used for identification;

2) One coupling corresponds to one oil pipe, and the oil pipe information corresponding to each ring code is entered in the database;

3) Scan the oil pipes and couplings in the cleaning movement, and identify that the couplings have entered the detection range through the image;

4) After the oil pipe is cleaned, scan the ring code on the surface of the cross section of the coupling ring to obtain the ring code information corresponding to the ring code;

5) Find the detailed information of the corresponding oil pipe in the database according to the ring code information.

The ring code information in step 4) is a string of "digital characters".

Further, the ring code is defined as:

a. Use the numbers 0-9 and the letters A-Z to represent the ring code information, wherein the letters "A-Z" are defined to represent "10-35";

B, the ring-shaped code is that a plurality of circular grooves and the plane between the circular grooves are formed together, and the initial position of reading adopts the circular groove of the maximum radius R in the ring-shaped code to represent;

c. Divide the surface of the cross section of the ring into n parts evenly, each part is represented by six characters, using binary 0 and 1;

d. In the setting of the ring code, the circular groove is readable, the plane is 0, and the diameter of the remaining circular grooves is r<R.

Further, the scanning equipment in step 3) adopts a computer and a camera, the computer is connected with the camera, and the camera is located at the front end of the oil pipe cleaning station.

The invention provides an on-line identification and management method for oil pipes based on image recognition. Compared with the traditional method of printing steel stamps on oil pipes, it can store more information, manage oil pipes more quickly, and can repair or replace oil pipes that have problems in time. Improve the efficiency of oil well operations.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not intended to limit the disclosure of the present invention.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description serve to explain the principles of the invention.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. In other words, other drawings can also be obtained based on these drawings without creative labor.

FIG. 1 is a schematic diagram of the online identification of the oil pipe provided by the disclosed embodiment of the present invention;

2 is a schematic diagram of a ring code reading provided by an embodiment of the present disclosure;

FIG. 3 is a top view of the oil pipe coupling provided by the disclosed embodiment of the present invention;

FIG. 4 is a schematic diagram of milling holes on the cross-sectional surface of the coupling ring provided by the disclosed embodiment of the present invention.

Detailed ways

Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. Where the following description refers to the drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the illustrative examples below are not intended to represent all implementations consistent with the present invention. Rather, they are merely examples of systems consistent with some aspects of the invention as recited in the appended claims.

In order to solve the problems in the prior art, such as the single management method of oilfield tubing and the time-consuming and labor-intensive maintenance or replacement, this embodiment provides an image recognition-based on-line tubing identification and management method. Milling is performed on the annular surface of the tubing coupling. Machining, milling out a ring code that can be used for identification, and then entering the required tubing information in the database to realize that one coupling corresponds to one tubing, and other data such as the production time and the number of times the tubing coupling has been used can be identified by scanning. ,Convenient.

Specifically include the following steps:

1) Milling on the surface of the annular cross-section of the tubing coupling, and milling out a ring code that can be used for identification;

2) One coupling corresponds to one oil pipe, and the oil pipe information corresponding to each ring code is entered in the database;

3) Scan the oil pipes and couplings in the cleaning movement, and identify that the couplings have entered the detection range through the image;

4) After the oil pipe is cleaned, scan the ring code on the surface of the cross section of the collar to obtain the ring code information corresponding to the ring code; the reason for this step is: the oil pipe to be detected is taken out from the oil field, and Oil and other impurities are stuck on the surface. Before scanning the oil pipe, it needs to be dynamically cleaned on the oil pipe cleaning table, and then scanned. As shown in Figure 1, the oil pipe to be cleaned in the oil pipe cleaning table is placed on the transfer roller. Roller transport, exposing the tubing coupling section to the scanning device.

5) Find the detailed information of the corresponding oil pipe in the database according to the ring code information.

In step 4), the ring code information is a string of "digital characters".

Examples are shown in the table below.

The above ring code is defined as:

a. Use the numbers 0-9 and the letters A-Z to represent the ring code information, wherein the letters "A-Z" are defined to represent "10-35";

b, the ring code is composed of a plurality of circular grooves 1 and the plane 2 between the circular grooves, and the starting position of reading is represented by the circular groove of the maximum radius R in the ring code; as shown in Figure 3 -4 shown;

c. Divide the cross-sectional surface of the ring into n parts evenly, each part is represented by six-bit characters, using binary 0 and 1, and each part is represented by six-bit characters, using binary 0 and 1;

d. In the setting of the ring code, the circular groove is readable, the plane is 0, and the diameter of the remaining circular grooves is r<R.

For example, as shown in Figure 2, the graphic reading is: 90YO070;

The scanning equipment in step 3) adopts a computer and a camera, the computer is connected with the camera, the camera is located at the front end of the oil pipe cleaning station, and the computer plays the role of database processing.

The method disclosed in this embodiment uses codes to store the usage information of oil pipes, and records the information in the database, so that one code, one coupling and one oil pipe can be realized, and the purpose of digital management is achieved, which is more convenient. If the oil pipe A can no longer be used, the code on the coupling can be unchanged, and the oil pipe A can be directly replaced with a new oil pipe B, and the stored information can be changed in the database to realize the pipe replacement.

Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses or adaptations of the invention which follow the general principles of the invention and which include common knowledge or conventional techniques in the art not disclosed by the invention . The specification and examples are to be regarded as exemplary only, with the true scope and spirit of the invention being indicated by the claims.

Claims (5)

1. An oil pipe online identification and management method based on image identification is characterized by comprising the following steps: milling the surface of a circular ring of the tubing coupling to obtain an annular code which can be used for identification; and inputting the required oil pipe information into a database based on the annular code, and identifying the basic information of the oil outlet pipe coupling by scanning the annular code.

2. The oil pipe online identification and management method based on image identification as claimed in claim 1, characterized by comprising the following steps:

1) milling the surface of the circular cross section of the tubing coupling to obtain an annular code which can be used for identification;

2) one coupling corresponds to one oil pipe, and oil pipe information corresponding to each annular code is recorded in a database;

3) scanning the oil pipe and the coupling in the cleaning motion, and identifying that the coupling enters a detection range through an image;

4) after the oil pipe is cleaned, scanning the annular code on the cross section surface of the coupling ring to obtain annular code information corresponding to the annular code;

5) and finding out the detailed information of the corresponding oil pipe in the database according to the ring code information.

3. The method for online identification and management of oil pipes based on image identification as claimed in claim 2, wherein the ring code information in step 4) is a string of "numeric characters".

4. The oil pipe online identification and management method based on image identification as claimed in claim 3, wherein the ring code is defined as:

a. the ring code information is represented by the numbers 0-9, the letters A-Z, wherein the letters "A-Z" are defined to represent "10-35";

b. the annular code is formed by a plurality of circular grooves and planes among the circular grooves, and the read start bit is represented by the circular groove with the largest radius R in the annular code;

c. uniformly dividing the cross section surface of the circular ring into n parts, wherein each part is represented by a six-bit character and adopts binary 0 and 1;

d. in the setting of the annular code, the circular grooves are readable, the plane is 0, and the diameters R of the rest circular grooves are less than R.

5. The oil pipe online identification and management method based on image identification as claimed in claim 2, characterized in that the equipment for scanning in step 3) adopts a computer and a camera, the computer is connected with the camera, and the camera is located at the front end of the oil pipe cleaning table.

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