公开(公告)号：EP2718566B1

公开(公告)日：2016-12-07

申请号：EP12860691.0

申请日：2012-05-16

申请人： Unico, Inc.

发明人： GREGORY, Benjamin J. ,  BECK, Thomas L. ,  PETERSON, Ronald G. ,  MacDONALD, Michael A. ,  DRY, Michael D.

IPC分类号： F04B9/02 ,  E21B43/16 ,  E21B43/12

CPC分类号： E21B43/127 ,  E21B43/126 ,  E21B2043/125 ,  F03G6/00 ,  F04B17/006 ,  F04B47/02 ,  F04B47/022 ,  F04B47/026 ,  F24T10/10 ,  F24T2010/56 ,  Y02E10/12 ,  Y02E10/46 ,  Y02P80/158 ,  Y10T29/49716

摘要： An improved apparatus and method are provided, for pumping fluids, such as water and/or hydrocarbons, from a subterranean formation or reservoir, through use of a cranked rod pumping (CRP) apparatus for imparting reciprocating substantially vertical motion to a rod of a sucker-rod pump having a pump stroke. The CRP apparatus includes a motor driven cranked mechanical actuator arrangement. The cranked mechanical actuator arrangement includes a substantially vertically moveable member attached to the rod of the sucker-rod pump for imparting and controlling vertical motion of the rod of the sucker-rod pump. The actuator arrangement may include pneumatic counterbalancing.

公开(公告)号：EP2718566A2

公开(公告)日：2014-04-16

申请号：EP12860691.0

申请日：2012-05-16

申请人： Unico, Inc.

发明人： GREGORY, Benjamin J. ,  BECK, Thomas L. ,  PETERSON, Ronald G. ,  MacDONALD, Michael A. ,  DRY, Michael D.

IPC分类号： F04B9/02 ,  E21B43/16

CPC分类号： E21B43/127 ,  E21B43/126 ,  E21B2043/125 ,  F03G6/00 ,  F04B17/006 ,  F04B47/02 ,  F04B47/022 ,  F04B47/026 ,  F24T10/10 ,  F24T2010/56 ,  Y02E10/12 ,  Y02E10/46 ,  Y02P80/158 ,  Y10T29/49716

摘要： An improved apparatus and method are provided, for pumping fluids, such as water and/or hydrocarbons, from a subterranean formation or reservoir, through use of a cranked rod pumping (CRP) apparatus for imparting reciprocating substantially vertical motion to a rod of a sucker-rod pump having a pump stroke. The CRP apparatus includes a motor driven cranked mechanical actuator arrangement. The cranked mechanical actuator arrangement includes a substantially vertically moveable member attached to the rod of the sucker-rod pump for imparting and controlling vertical motion of the rod of the sucker-rod pump. The actuator arrangement may include pneumatic counterbalancing.