中国石油集团工程技术研究院有限公司
Exhibit Profile：
DR have already grasped and been developing 14 major featured techniques such as MPD technology and equipment, horizontal & lateral well drilling technology， drilling fluid and reservoir protection technology, cementing and completion techniques, coalbed
Exhibits show：
DR have already grasped and been developing 14 major featured techniques such as MPD technology and equipment, horizontal & lateral well drilling technology， drilling fluid and reservoir protection technology, cementing and completion techniques, coalbed
Exhibits show：
Website：http:// www.cdri.cnpc