内:
SINOPEC Oil Field Service Shengli Corporation Geologging Technology Research Institute was established in 1998. The institute is mainly engaged in mud logging equipment development, manufacture, inspection, sales, technical support and training. Since 2011, the institute has become \"Sinopec mud logging equipment manufacturing center“. Since 2015, the institute has become \"Sinopec Mud Logging Equipment Manufacturing & Inspection Center“, which is the largest and most powerful mud logging equipment research and manufacturing base in China.
Website:www.sinopecmudlogging.com