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NHANCEEFFICIENCY A
UTOMATEDCASINGAND DP
HANDLING The LOC400 is equipped with a fully automated pipehandler, which enables highly efficient handling of both casing and DP. When the pipe handler has upended the tubulars, they are taken over by elevators in the rig. A top drive is utilized to spin the tubulars in and to torque-up the connections. Fully automated power slips are integrated within the rotary table. The LOC400 is capable of tripping DP at 1700 ft/hr, which makes the LOC400 as efficient as existing conventional DP drilling rigs and more efficient than other specially designed CWD rigs.The DP drilling and CWD processes (including pipe andcasing handling) are fully controlled from the control room without personnel on the drill floor. As DP handling is identical to casing handling and uses the same equipment, the same team can carry out both tasks. While a conventional pipe- drilling rig needs a crew of 10, the efficient design of the LOC400 means it requires only a five-man crew for full and safe operation. O
FFLINE BOP
TESTINGAND BHA
HANDLING To further reduce non-productive time due to flat-timeactivities, the BOPs are pressure tested offline on a dedicated test stump, which also serves as a mouse hole. The control hoses do not have to be disconnected after testing to move the BOP onto the wellhead. Only the wellhead has to be tested in the critical path of rig operation.In addition, the bottom-hole assemblies (BHA) can be assem-bled and taken apart offline using the LOC400’s crown-mount- ed service crane as a stand builder. An area for storage of up to eight stands of BHA is available. A new BHA is ready when the previous one is pulled out. BOP almost in position

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LOC400 brochure - 55219 .

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