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A Possum belly, on a drilling rig, is a metal container at the head of the shale shaker that receives the flow of drilling fluid and is directly connected to and at the end of the flow line. A possum belly may also be referred to as a distribution box or flowline trap.〔 〕 The purpose of the possum belly is to slow the flow of the drilling fluid (after it has gained momentum from coming down through the flow line) so that it does not shoot off of the shale shakers. Possum bellies are generally used when bentonite or another form of "mud" is being used. During the use of freshwater or brine water, the flow line generally either goes straight to the reserve pit, or into the steel pits. The possum belly derives its name from the similarity of its appearance to the underbelly of the female possum. Each of the chambers of the possum belly resemble an elongated teat similar to the ones found on female opossums. See Drilling rig (petroleum) for a diagram. ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Possum belly」の詳細全文を読む スポンサード リンク
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