Borders & Southern Petroleum has bought the services of the Eirik Raude drilling unit to help it complete a two well drilling programme in the Falkland Islands.The company, which signed the contract with Ocean Rig UDW Inc, will be able to start drilling when the harsh environment semi-submersible arrives from West Africa.Initial well designs for the Darwin and Stebbing prospects are already "well advanced" and subsea wellhead systems and casing strings are expected to be ordered shortly. Detailed well planning and the contracting of third party services will also start soon.Each of the wells will take about 45 days each. The contract allows for up to three option wells."We are delighted to have signed this contract. It represents a significant milestone for the company and is the culmination of an intense period of technical and contractual effort," said chief executive Howard Obee. "The Eirik Raude is a high specification, harsh environment rig that is ideally suited for our work programme."