A method for automatically managing a tubular string condition

Abstract

The present application belongs to the technical field of oil and gas drilling, and particularly relates to a pipe string state automatic management method. The pipe string state automatic management method carries out information management on the pipe string in the drilling site through the numbering filing mode. The present application makes the numbering of each pipe string correspond to the position information of the pipe string one by one through the numbering filing mode, so as to realize the automatic management of the pipe string state. Through the one-to-one correspondence between the numbering of the pipe string and the position information of the pipe string, the ultra-high frequency RFID tag can be replaced, so as to avoid the influence of the overall performance of the pipe string due to the embedding of the tag.

Description

Technical Field

[0001] This invention belongs to the field of oil and gas drilling technology, specifically, it relates to an automatic management method for tubing string status. Background Technology

[0002] Currently, the management of drilling tools at drilling sites mostly relies on manual filling, paper records, and electronic archiving, resulting in a low level of informatization in drilling tool management. To improve the informatization level of drilling tool management, some research institutions have developed a drilling tool information collection and management system based on RFID technology. By selecting ultra-high frequency RFID tags as information carriers, they have achieved remote unattended operation for drilling tool information collection and storage.

[0003] However, whether embedding RFID tags in tubing such as drill pipe joints affects the overall performance of the drill pipe remains to be verified, and it cannot yet meet the requirements for automated management of tubing information on site.

[0004] Therefore, there is an urgent need to develop an automatic management method for the status of tubing. Summary of the Invention

[0005] In view of the technical problems mentioned above, the present invention aims to propose an automatic management method for tubing status, which can realize the automatic management of tubing.

[0006] According to the present invention, an automatic management method for the status of tubing strings is provided, which enables information-based management of tubing strings at the drilling site through a numbered filing system.

[0007] In one specific embodiment, the number of each tube string is matched one-to-one with the location information of each tube string.

[0008] In one specific embodiment, during the process of transporting a single pipe string from the ground to the drilling platform, each single pipe string is numbered sequentially, and the position information of the single pipe string is recorded in real time.

[0009] In one specific embodiment, after multiple single pipe columns are constructed into columns, each column is numbered sequentially.

[0010] In one specific embodiment, when the pillar is stored in the support box, the pillar is numbered and its position information is recorded.

[0011] In one specific embodiment, after the column is inserted into the well, the position information of the column is recorded in real time.

[0012] In one specific embodiment, when the tubing string is retrieved from the well, various performance parameters of the tubing string are tested, and the performance information of the tubing string is stored in the corresponding number.

[0013] In one specific embodiment, the performance information includes one or more of the following: mud volume, usage information, thread cleaning and oiling information, and maintenance information.

[0014] In one specific embodiment, the performance information is used to determine whether maintenance operations need to be performed on the tubing before it is stored.

[0015] In one specific embodiment, the maintenance operation includes one or more of the following: tubing cleaning, thread cleaning and oiling, and repair.

[0016] Compared with the prior art, the advantages of this application are as follows.

[0017] This invention uses a numbered filing system to ensure a one-to-one correspondence between the number of each pipe column and its location information, thereby achieving automatic management of the pipe column status. By linking the pipe column's number to its location information, it can replace UHF RFID tags, thus avoiding the impact on overall performance caused by embedded tags. Attached Figure Description

[0018] The present invention will now be described with reference to the accompanying drawings.

[0019] Figure 1 A numbered schematic diagram of an embodiment of a column in a support box according to the automatic column status management method of the present invention is shown.

[0020] Figure 2 A numbered schematic diagram shows an embodiment of a downhole tubing string according to the automatic tubing string status management method of the present invention.

[0021] In this application, all drawings are schematic and are used only to illustrate the principles of the invention, and are not drawn to scale. Detailed Implementation

[0022] The invention will now be described with reference to the accompanying drawings.

[0023] According to the present invention, an automatic management method for the status of tubing strings is provided, which enables information-based management of tubing strings at the drilling site through a numbered filing system.

[0024] According to the present invention, each pipe column is numbered and its location information is mapped one-to-one. Specifically, in this embodiment, after each pipe column is numbered, the pipe column number is entered into the management system, and at the same time, the location information of the pipe column is also entered into the management system and mapped to the pipe column number. The location information of the pipe column is automatically updated as the pipe column moves.

[0025] According to a specific embodiment of the present invention, the length measurement, filing and numbering, cleaning and oiling of individual pipe columns are completed on the ground. The number of each individual pipe column and its corresponding length information, location information, etc. are stored in the management system and displayed on the interface of the management system.

[0026] It is easy to understand that management systems are well-known to those skilled in the art, and will not be elaborated upon here.

[0027] Specifically, a length measuring device is installed on the ground. After each single pipe column is measured, the length measuring device automatically transmits the length information of the single pipe column to the management system. The management system automatically creates a number for the single pipe column and archives the length information corresponding to the number of the single pipe column.

[0028] In one specific embodiment, during the process of transporting individual pipe strings from the ground to the drilling platform, each individual pipe string can be sequentially numbered, and its position information can be recorded in real time. That is, when an individual pipe string is removed from the pipe string box on the ground, it is numbered, for example, using a direct numerical number, or as string 1, string 2, ..., string n, and this number is entered into the management system. Simultaneously, the position information of the individual pipe string, corresponding to its number, is also entered into the management system and updated in real time.

[0029] Once a single pipe string is delivered to the drilling platform, and multiple single pipe strings are used to construct a support column, each column is sequentially numbered and distinguished from the single pipe string number, such as support column 1, support column 2, ..., support column n. The numbers of each support column are then entered into the management system. Simultaneously, the location information of each support column is also entered into the management system and correlated with its number. For example, when a support column is stored in the support box, each support column is numbered, and its location information is recorded.

[0030] like Figure 1 As shown, after numbering each column, the position information of each column in the support box can be displayed in an image.

[0031] In one specific embodiment, a construction column visual recognition sensor is installed on the drilling platform. Whenever the construction column visual recognition sensor detects that a column has entered the support box, the sensor transmits the column's position information to the management system. The management system automatically creates a number for the column and archives the position information corresponding to the column's number. At the same time, the management system automatically identifies and archives the numbers of the individual pipe columns that make up the column.

[0032] Whenever the column visual recognition sensor detects that a column has moved out of the support box, the sensor transmits the column's position information to the management system. The management system then finds the column's corresponding number based on its position information within the support box before the movement and updates its position information.

[0033] According to the present invention, after the column is inserted into the well, the position information of the column is recorded in real time. For example... Figure 2 As shown, the location information of each support column in the well can be displayed in an image.

[0034] In one specific embodiment, a wellhead visual recognition sensor is installed on the drilling platform. After the column is moved out of the stand box, it moves toward the wellhead. When the wellhead visual recognition sensor recognizes that the column has entered the wellhead, the wellhead visual recognition sensor sends an electrical signal to the management system. The management system updates the position information of the column in real time according to the length of the column.

[0035] Both the stand-up string visual recognition sensor and the wellhead visual recognition sensor utilize image recognition technology. The stand-up string visual recognition sensor controls the lifting height of the surface-delivered tubing string during offline stand-up string installation. The wellhead visual recognition sensor determines the height of the tubing string coupling at the wellhead, allowing the on-site driller to automatically adjust the height based on the feedback information for the installation and disconnection of the tubing string.

[0036] It is easy to understand that the visual recognition sensor for the wellhead and the visual recognition sensor for the wellhead are well known to those skilled in the art, and will not be elaborated here.

[0037] According to the present invention, when the tubing string is taken out of the well, various performance characteristics of the tubing string are tested, and the performance information of the tubing string is stored in the corresponding number.

[0038] In one specific embodiment, the performance information includes one or more of the following: mud volume, usage information, thread cleaning and oiling information, and maintenance information.

[0039] According to the present invention, it is determined whether maintenance operations are required for each tubing string before it is put into storage based on the performance information of each tubing string. Maintenance operations include one or more of the following: tubing string cleaning, thread cleaning and oiling, and repair.

[0040] In one specific embodiment, an ultrasonic detector 6 and a drilling fluid splash guard 8 are installed on the drilling platform, both of which are connected to the management system and record and display relevant information on the control interface.

[0041] The ultrasonic detector 6 is used to determine whether there is mud inside a single tubing string. When the single tubing string is moved out of the wellhead, the ultrasonic detector 6 emits ultrasonic waves from one transmitting end at the wellhead and receives them from the other receiving end. Ultrasonic waves have different acoustic impedances in different media; generally, the impedance of gases is much lower than that of liquids, allowing the signal from air to be distinguished from that of drilling fluid based on the reflection intensity. When the ultrasonic detector detects mud inside the tubing string, a feedback signal controls the drilling fluid splash guard to flip back to the wellhead for mud splash prevention. Simultaneously, the ultrasonic detector can also detect whether there is residual mud inside the single tubing string and send an electrical signal to the management system. The management system records the amount of residual mud in the single tubing string and its corresponding serial number, using this information to determine whether subsequent maintenance operations such as tubing string cleaning are needed.

[0042] According to the present invention, the management system is installed in the control system in the driller's cabin to store and display data such as usage records of the tubing, thread cleaning and oiling records, maintenance information records, inventory records, and location management. By displaying usage records on the cloud server, the system can provide early warnings of tubing service risks.

[0043] In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0044] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0045] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0046] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic management method for the status of a tubing string, characterized in that, The drilling site's tubing is managed using an information-based system that establishes a numbered file.

2. The automatic management method for tubing status according to claim 1, characterized in that, Each pipe string number is matched with its location information.

3. The automatic management method for tubing status according to claim 2, characterized in that, During the process of transporting individual pipe strings from the ground to the drilling platform, each individual pipe string is numbered sequentially, and its position information is recorded in real time.

4. The automatic management method for tubing status according to claim 3, characterized in that, After multiple single-pipe columns are constructed into columns, each column is numbered sequentially.

5. The automatic management method for tubing status according to claim 4, characterized in that, When the pillars are stored in the support box, the pillars are numbered and their location information is recorded.

6. The automatic management method for tubing status according to claim 5, characterized in that, After the column is lowered into the well, its position information is recorded in real time.

7. The automatic management method for tubing status according to any one of claims 1 to 6, characterized in that, When the tubing string is retrieved from the well, its various properties are tested, and the performance information of the tubing string is stored in the corresponding number.

8. The automatic management method for tubing status according to claim 7, characterized in that, The performance information includes one or more of the following: mud volume, usage information, thread cleaning and oiling information, and maintenance information.

9. The automatic management method for tubing status according to claim 7, characterized in that, Based on the performance information, determine whether the tubing needs maintenance before being stored.

10. The automatic management method for tubing status according to claim 9, characterized in that, The maintenance operations include one or more of the following: tubing cleaning, thread cleaning and oiling, and repair.

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