公开(公告)号：US10450819B2

公开(公告)日：2019-10-22

申请号：US15820273

申请日：2017-11-21

申请人： CNPC USA Corp. ,  Beijing Huamei, Inc.

发明人： Ming Zhang ,  Chris Cheng ,  Dengxiang Bai ,  Xiongwen Yang ,  Kuangsheng Zhang ,  Yuming Wang ,  Peiyuan Hu

IPC分类号： E21B28/00

摘要： The tool assembly vibrates a casing string or drill string in a wellbore. The tool assembly includes a housing, an insert mounted in the housing as a fluidic agitator, and a cover fitted over the insert. The insert includes an inlet chamber, a vortex chamber, and a feedback chamber, and the fluid flow through the insert has a pressure profile with a plurality of levels determined by the feedback chamber. The strength and frequency of the pressure profile can be regulated by the feedback chamber according to position, size and asymmetry of the transition channels connected to the feedback chamber. The high strength and low frequency pressure pulses can be achieved in the limited space of the housing for placement of the inlet and outlet.

公开(公告)号：US20190153798A1

公开(公告)日：2019-05-23

申请号：US15820273

申请日：2017-11-21

申请人： CNPC USA Corp. ,  Beijing Huamei, Inc.

发明人： Ming Zhang ,  Chris Cheng ,  Dengxiang Bai ,  Xiongwen Yang ,  Kuangsheng Zhang ,  Yuming Wang ,  Peiyuan Hu

IPC分类号： E21B28/00

CPC分类号： E21B28/00

摘要： The tool assembly vibrates a casing string or drill string in a wellbore. The tool assembly includes a housing, an insert mounted in the housing as a fluidic agitator, and a cover fitted over the insert. The insert includes an inlet chamber, a vortex chamber, and a feedback chamber, and the fluid flow through the insert has a pressure profile with a plurality of levels determined by the feedback chamber. The strength and frequency of the pressure profile can be regulated by the feedback chamber according to position, size and asymmetry of the transition channels connected to the feedback chamber. The high strength and low frequency pressure pulses can be achieved in the limited space of the housing for placement of the inlet and outlet.

公开(公告)号：US10753167B2

公开(公告)日：2020-08-25

申请号：US16586662

申请日：2019-09-27

申请人： CNPC USA Corporation ,  Beijing Huamei, Inc.

发明人： Ming Zhang ,  Chris Cheng ,  Dengxiang Bai ,  Xiongwen Yang ,  Kuangsheng Zhang ,  Yuming Wang ,  Peiyuan Hu

IPC分类号： E21B28/00

摘要： The tool assembly vibrates a casing string or drill string in a wellbore. The tool assembly includes a housing, an insert mounted in the housing as a fluidic agitator, and a cover fitted over the insert. The insert includes an inlet chamber, a vortex chamber, and a feedback chamber, and the fluid flow through the insert has a pressure profile with a plurality of levels determined by the feedback chamber. The strength and frequency of the pressure profile can be regulated by the feedback chamber according to position, size and asymmetry of the transition channels connected to the feedback chamber. The high strength and low frequency pressure pulses can be achieved in the limited space of the housing for placement of the inlet and outlet.