Experimental device for simulating air agitation of marine module drilling machine flow dividing box

Abstract

The invention provides an experimental device for simulating air agitation of a marine module drilling machine flow dividing box. The experimental device comprises an instrument air tank, a wellhead mud return groove, a flow dividing box, a mud tank and a mud pump. An inlet of the flow dividing box is connected with the wellhead mud return groove, an outlet of the flow dividing box is connected with an inlet of the mud tank, an outlet of the mud tank is connected with an inlet of the mud pump, an outlet of the mud pump is connected with the wellhead mud return groove, and an air stirring pipeline is pre-buried in the flow dividing box and connected with the instrument air tank. According to the experimental device for simulating the air agitation of the marine module drilling machine flowdividing box, data statistics, design adjustment and effect verification can be carried out on air stirring conditions and the like, and a basis is provided for on-site use of a marine module drillingmachine.

Description

technical field [0001] The invention relates to the technical field of offshore oil and gas field equipment, and more specifically, relates to an experimental device for simulating air agitation in a diverter box of an offshore module drilling rig. Background technique [0002] At present, according to the use of offshore drilling rig modules, the relatively large-sized cuttings in the diversion box are easy to settle under the action of gravity, and they are easy to deposit at the bottom of the diversion box, and cannot enter the vibrating screen for treatment and cannot be discharged smoothly. Therefore, The diverter box needs to be cleaned regularly; the space above the diverter box is very limited, it is difficult to clean, and it takes a long time, which affects the purification cycle of the drilling fluid, thereby affecting the drilling efficiency. [0003] Therefore, there is an urgent need for a technical solution that can optimize the air stirring solution in the pr...

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Problems solved by technology

[0002] At present, according to the use of the offshore drilling rig module, the rock debris with relatively large particle size in the diversion box is easy to settle under the action of gravity, and it is easy to deposit at the bottom of the diversion box, and cannot enter the vibrating screen for treatment and cannot be discharged smoothly, so The diverter box needs to be cleaned regularly; the space above the diverter box is very limited, the cleaning is difficult and takes a long time, which affects the purification cycle of the drilling fluid, thereby affecting the drilling efficiency

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