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Mud Recycling System for Offshore drilling

2013-09-14
For the offshore drilling, mud recycling system is composed of drilling mud tank, five class cleaning equipment (shale shaker, vacuum degasser, desander, desilter, and centrifuge) and pipelines. The system also contains supply device, pumps and agitator. In addition, the system also equipped with corridors, ladders, railings and other safety protection device. 

Compared with drilling on ground, the offshore drilling has higher requirement about the mud recycling equipment.

The design of drilling mud tank needed to achieve the following demands:

1 Drilling mud tank should contain the maximum circulating volume of drilling fluid in drilling process.
2 The whole intensity of mud tank should satisfy the demands of hoisting, transport and using drilling fluid with 2.5g/cm³.
3 According to the requirement of technological process, between each cabins should be installed overfall and communicating pipe.
4 Every bay should be installed cleaning port, the lower edge of the opening should be leveled with tank bottom, and can be below the tank bottom.
5 All of the sealing elements needed to satisfy oil resistance, acid-resisting, alkali-resisting, and H2S resistance, and can meet the requirement of using all kinds of drilling fluid.