Abstract: A downhole valve apparatus, for controlling fluid flow in drilling operations, includes a tubular housing and a float valve movably held within a valve bore of the tubular housing and partially within a stress relief bore. The float valve is axially movable relative to the tubular housing while in a sealing relationship with the valve bore between a first configuration and a second configuration of the downhole valve apparatus. A valve member of the float valve allows a downward flow of a drilling fluid of a first pressure to flow through the float valve in the first configuration, and the valve member blocks an upward flow of any fluid of a second pressure from the well through the float valve in the second configuration.

Abstract: A downhole valve apparatus, for controlling fluid flow in drilling operations, includes a tubular housing and a float valve movably held within a valve bore of the tubular housing and partially within a stress relief bore. The float valve is axially movable relative to the tubular housing while in a sealing relationship with the valve bore between a first configuration and a second configuration of the downhole valve apparatus. A valve member of the float valve allows a downward flow of a drilling fluid of a first pressure to flow through the float valve in the first configuration, and the valve member blocks an upward flow of any fluid of a second pressure from the well through the float valve in the second configuration.

Abstract: The present invention provides a cloud computing based system for compliance monitoring of vehicles and users of hydrocarbon wellsites and methods of implementing compliance monitoring service. The system includes at least one access control station located in the compliance monitored hydrocarbon wellsite and a cloud system server to manage the compliance monitoring of the hydrocarbon wellsites. The cloud system server can analyze an access code data and geolocation data received from a mobile computing device of a user, who is desiring to enter or exit a hydrocarbon wellsite or a portion of it, to authenticate the user, to determine whether the user is entering or exiting the hydrocarbon wellsite, and to identify the location of the access control station where the user entry or exit occurs.