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1. 发明授权

US6036870A Method of wellbore fluid recovery using centrifugal force 失效
标题翻译：使用离心力的井筒回收方法
公开(公告)号：US6036870A
公开(公告)日：2000-03-14
申请号：US24471
申请日：1998-02-17
申请人： J. C. Briant , Michael Reid
发明人： J. C. Briant , Michael Reid
IPC分类号： E21B21/06 , B01D21/26
CPC分类号： E21B21/066
摘要： A method for recovering a component from a wellbore fluid mixture has been invented that includes feeding a wellbore fluid mixture to a decanting centrifuge, the wellbore fluid containing at least one liquid component and undesirable solids; separating undesirable solids from the wellbore fluid mixture with the decanting centrifuge, producing an intermediate fluid containing the at least one liquid component and a reduced amount of the undesirable solids; and feeding the intermediate fluid to a secondary centrifuge, producing a final fluid containing the at least one liquid component and a further reduced amount of the undesirable solids. In certain aspects at least some of the undesirable solids are barite pieces, which in one aspect have a largest dimension of no more than 192 microns, and in one aspect wherein at least 50% or 99% of the barite pieces by weight are removed. Such a method is useful, in certain aspects, to separate undesirable solids have a largest dimension of at least 75 microns. In one aspect the method is useful to separate brine from a wellbore fluid.
摘要翻译：已经发明了一种从井眼流体混合物中回收组分的方法，其包括将井筒流体混合物进料到倾析离心机中，所述井筒流体含有至少一种液体组分和不期望的固体; 用倾析的离心机从井筒流体混合物中分离不需要的固体，产生含有至少一种液体组分的中间流体和减少量的不需要的固体; 并将中间流体供给到二次离心机中，产生含有至少一种液体组分的最终流体和进一步减少量的不需要的固体。在某些方面，至少一些不期望的固体是重晶块，其一方面具有不超过192微米的最大尺寸，并且在一个方面，其中除去重块重量的至少50％或99％。在某些方面，这种方法是有用的，以分离具有至少75微米的最大尺寸的不期望的固体。在一个方面，该方法可用于将井筒与井筒流体分离。

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