Challenger Limited is a provider of contract oil and gas land well drilling and work over services. The company owns and operates 25 drilling rigs in Libya providing drilling and work-over services for oil, gas, and water wells, with offices in Egypt, Saudi Arabia and the United Arab Emirates. Workover refers to any kind of oil well intervention involving invasive techniques, such as wireline, coiled tubing or snubbing. More specifically though, it will refer to the expensive process of pulling and replacing a Completion (oil well).
RG PETRO-MACHINERY (GROUP) CO. LTD is one of the key manufacturers of petroleum drilling equipment and services supplier in the World. We can provide 12 series of products in 200 kinds, including 1000m-9000m skid-mounted drilling rig, 1000m-4000m truck-mounted drilling rig, 1000m -4000m trailer-mounted drilling rig, all kinds work over rigs, offshore drilling/work over equipments, petroleum special vehicles, top drive drilling equipments, mud pumps, hoisting and rotary drilling equipments and related spare parts, etc. We can supply the drilling and work over services for onshore and offshore oil & gas fields.
Shanghai Shenkai Petroleum and Chemical Equipment (hereinafter referred to as : “Shenkai” or the “company” is one of public enterprises which is specialized in R&D, manufacturing, petroleum and chemical equipment and technical service as its man business. Stock code： 002278), the company has a number of specialized subsidiaries. Shenkai is located in Shanghai, fully utilized the regional resources of the place, always developing the company based on creative technology, Shenkai has been dedicated to innovating to keep the growth. Focusing on the field of petroleum, petrochemical, and constantly create new value