Enhanced logging imaging system ELIS™is reliable with excellent performance. In addition to conventional tools, ELIS ™ has a variety of high-end tools to meet challenging requirements of customers, which include Enhanced Formation Dynamic Tester (EFDT™), Enhanced Rotary Sidewall Coring Tool (ERSC), Enhanced Resistivity Micro-Imager (ERMI), ELIS™ Magnetic Resonance Tool (EMRT), and Multifunction Ultrasonic Imaging Logging Tool

Perforating guns, associated tools and accessories, skids

SAS-IT reservoir test data acquisition system has the functions of remote monitoring, decision-making and control. It can perform conventional well test, extension test and HPHT well test

Logging While Drilling system(LWD) DRILOG ® Rotary Steerable System (RSS) WELLEADER ®

COSL Chemicals (Tianjin) Ltd. manufactures more than forty drilling-fluid additive, well-completion additive, cementing additives and well-stimulation additive chemical products, many of which are patented by China's State Intellectual Property Office.

COSL Chemicals adheres to the policy of keeping faith with its customers: focus on the customer's requirements to efficiently provide the best before-the-sale, during-the-sale, and after-the-sale service, always striving to create a solid business relationship in which both sides are winners. COSL Chemicals currently services the international market all the way from Myanmar, Indonesia, and the Philippines to India, the Middle East, Europe, and beyond.

normal lubricant, balling control lubricant; environment protective lubricant; high-performance lubricant; tackifier; petroleum reservoir-protection agent; instant PAV; leak- stoppage additive; efficient plugging agent;  environment protective plugging agent; low molecular coating agent; clay stabilizer; polyamine inhibitor; corrosion and bacteria inhibitor; oil based drilling fluid primary emulsifier; oil-based drilling fluid wetting agent; oil-based drilling fluid secondary emulsifier;  oil-based drilling fluid fluid-loss additive

high-temperature fluid loss additive; medium and low-temperature fluid loss additive; dispersant; medium and low-temperature retarder; high-temperature retarder; defoamer; accelerator; gas stop agent, preservative; auto-repairing additive;, plugging agent; water-based slurry flushing agent; oil-based slurry flushing agent; spacer-fluid additive

clean-up additive; polyhydrocarborn acid; mutual solvent; demulsifier; swelling-prevention agent; ferric iron stabilizer; medium and low--temperature corrosion inhibitor ; high-temperature corrosion inhibitor; wettability alternating agent