WITSML is an open data exchange standard formulated by Energistics. The software uses xml format to exchange data in drilling process with highly documented data interface. The format is flexible, the expression ability is strong, and the adaptability is wide. By using Web Service technology of Simple Object Access Protocol (SOAP), the field data request in petroleum industry is packaged into SOAP request according to the international standard WITSML, and the interface standard for obtaining data in class library and server that makes software development convenient is formed, which realizes the remote transmission, data processing and data interpretation of global oil drilling data.