A Highly Portable Solution for MWD Data Remote Transmission

The remote transmission of drilling information is the development trend of modern drilling wells. However, due to historical reasons, the early MWD in China generally did not have the remote transmission function, or did not support the standard WITS protocol remote transmission function. Because of the number of such MWDs is large, the price of MWD is expensive, and the stability of the performance, ease of maintenance of MWD, now MWD is still in large use, so it is necessary to develop MWD remote transmission functions in order to make full use of these large amounts of MWD resources. However, because there are so many different domestic MWD brand models, and their decoding software is also different, and some of the early software development did not consider the remote design, so how to find a general and simple solution, to achieve the MWD remote transmission function, in order to make full use of MWD resources, has a realistic significance.

After carefully studying the existing various MWD data characteristics, this paper designs a common WITS remote transmission solution for the data storage structure of MWD, which is based on the data storage structure of MWD, and the storage mechanism. With this solution, the innovative data from the database is read and converted to the WITS format, using the TCP/IP protocol and the Serial Port protocol to send. Because this scheme reads data directly from the database file, it avoids communication restrictions with The MWD software and has a strong portability.

Using this solution, The WITS function was developed for HL-MWD and tested in the actual drilling. The results show that the solution is stable and feasible, portability is strong, has universal reference significance for other similar MWDs, and can be developed quickly on the basis of this solution for other MWDs.