nipple

专利名称：BELLNIPPLE

发明人：AshleyBernardJohnson

申请号：US15555493

申请日：20160219

公开号：US2A1

公开日：20180215

专利内容由知识产权出版社提供

专利附图：

摘要：Abellnippleforuinanoffshorewellboreoperationcomprisinganupper

tubularmemberandalowertubularmemberconnectedtelescopicallyviaaslipjoint,

oneormorepistonsattheleveloftheradialplanewhichisdefinedbythelowestpoint

ofthesideoutletandeachsubstantiallynotaxiallymovablerelativetothelowertubular

member,whereinthetotalcrossctionalareaoftheoneormorepistonsis

substantiallythesameasthecrossctionalareaoftheslipjointlessthecrossctional

ormorepistonsinthebellnippleprovidespassiveheave

compensationinthesystem,sothattheflowrateofdrillingfluidmeasuredalongthe

flowlineisfreefromperturbationduetoheaveduringoffshoreoperations.

申请人：SCHLUMBERGERTECHNOLOGYCORPORATION

地址：SugarLandTXUS

国籍：US

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