	US 12,116,863 B2
	Check valve, associated downhole data collection system and inner core
Andrew Phillip Beach, Balcatta WA (AU); Nigel Warwick Gaylard, Balcatta WA (AU); Timothy Merle Price, San Luis Obispo, CA (US); Richard Kabzinski, Balcatta WA (AU); and James Barry Reilly, Balcatta WA (AU)
Assigned to REFLEX INSTRUMENTS ASIA PACIFIC PTY LTD, Balcata (AU)
Filed by REFLEX INSTRUMENTS ASIA PACIFIC PTY LTD, Balcatta (AU)
Filed on Jan. 20, 2022, as Appl. No. 17/580,378.
Application 17/580,378 is a continuation of application No. 16/850,297, filed on Apr. 16, 2020, granted, now 11,255,156.
Application 16/850,297 is a continuation of application No. 15/873,380, filed on Jan. 17, 2018, granted, now 10,648,282, issued on May 12, 2020.
Claims priority of application No. 2017900745 (AU), filed on Mar. 3, 2017.
Prior Publication US 2022/0145724 A1, May 12, 2022
Int. Cl. E21B 34/08 (2006.01); E21B 25/00 (2006.01); E21B 25/02 (2006.01); E21B 41/00 (2006.01)

CPC E21B 34/08 (2013.01) [E21B 25/02 (2013.01); E21B 25/00 (2013.01); E21B 41/0085 (2013.01)]

11 Claims

1. A downhole data collection system comprising:

a valve body defining a fluid flow path in an inner core barrel assembly;

a valve seat within the valve body extending about the fluid flow path;

a valve member located in the valve body and movable under influence of pressure differential cross the valve body between a closed position wherein the valve member forms a substantial seal with the valve seat, and an open position wherein the valve member is spaced from the valve seat;

data acquisition system housed within the valve member, the data acquisition system configured to acquire data pertaining to at least one physical condition exterior of the valve member; and

a coupling mechanism which couples the valve member to the valve body, the coupling mechanism arranged to allow the valve member to move linearly in an axial direction relative to the valve body on to and off of the valve seat and maintain a fixed rotational relationship with the valve body.