In order to meet the demand of increasingly developing petroleum industry, improve the reliability of oil drilling equipment and make them reach the advanced level, our company has developed the series 3000 diesel engines by using up-to-date engine structure and technology for reference, on the basis of the new 190 diesel engine jointly developed by JDEC and Austria AVL company. The power and economic targets of the engines have been greatly improved and main performance targets reached the level of world advanced drill rig engines.