公开(公告)号：US20230313677A1

公开(公告)日：2023-10-05

申请号：US17613856

申请日：2021-07-07

Applicant: VERTEX DOWNHOLE LTD.

Inventor： Kyle TWYNAM ,  Jaroslav DOBOS ,  Carl BROWN

IPC: E21B47/20 ,  E21B34/08

CPC classification number: E21B47/20 ,  E21B34/08

Abstract: A mud pulser for generating pulses in a fluid flow in a wellbore. The mud pulser has a valve housing having an uphole opening for receiving fluid flow, and a piston valve situated in a piston chamber is longitudinally moveable between an open and closed position by closing and opening a pilot port downhole of the uphole opening and in fluid communication with the piston chamber. A first channel extends in the sidewall of the valve housing and fluidly connects the uphole opening and the pilot port. One or more fluid egress ports are in communication with the piston chamber. A metering orifice may be inserted in said one or more fluid egress ports for first channel. Opening and closing the downhole pilot port moves the piston valve and thus opens and closes the uphole opening thereby generating pressure pulses in the fluid flow. A downhole valve is further disclosed.

公开(公告)号：US11424505B2

公开(公告)日：2022-08-23

申请号：US16027904

申请日：2018-07-05

Applicant: Vertex Downhole Ltd.

Inventor： Quentin Pare ,  Carl Brown

IPC: H01M50/24 ,  F16F15/08 ,  E21B41/00 ,  H01M50/213

Abstract: A battery, a battery container, and a battery pack, for use downhole in MWD operations, one or more of which incorporates lateral vibration damping. In a preferred embodiment each comprise specialized lateral vibration damping in the form of a plurality of longitudinally-extending resiliently-deformable ridges extending substantially a length of each and circumferentially spaced about an outer periphery. The resiliently-deformable ridges on the battery may be integrally formed and extend radially outwardly from a hollow resiliently-deformable sleeve, and formed of the same resiliently-deformable material of which the sleeve is comprised. The resiliently-deformable ridges on the battery container may extend radially inwardly or outwardly from a periphery thereof. Advantageously, the battery container can thus be free of potting material and thus be reusable when the batteries thereof need be replaced. In all instances the so-configured resiliently-deformable ridges serve to damp severe lateral vibratory forces exerted downhole on such batteries.

公开(公告)号：US20190393461A1

公开(公告)日：2019-12-26

申请号：US16027904

申请日：2018-07-05

Applicant: Vertex Downhole Ltd.

Inventor： Quentin PARE ,  Carl BROWN

IPC: H01M2/10 ,  E21B41/00 ,  F16F15/08

Abstract: A battery, a battery container, and a battery pack, for use downhole in MWD operations, one or more of which incorporates lateral vibration damping. In a preferred embodiment each comprise specialized lateral vibration damping in the form of a plurality of longitudinally-extending resiliently-deformable ridges extending substantially a length of each and circumferentially spaced about an outer periphery. The resiliently-deformable ridges on the battery may be integrally formed and extend radially outwardly from a hollow resiliently-deformable sleeve, and formed of the same resiliently-deformable material of which the sleeve is comprised. The resiliently-deformable ridges on the battery container may extend radially inwardly or outwardly from a periphery thereof. Advantageously, the battery container can thus be free of potting material and thus be reusable when the batteries thereof need be replaced. In all instances the so-configured resiliently-deformable ridges serve to damp severe lateral vibratory forces exerted downhole on such batteries.