Abstract:
A wired pipe segment includes a body extending from a box end to a pin end and a coupler located in one of the box and pin ends. The coupler includes a carrier having at least one electrical component disposed therein and one or more antennas supported by and spaced from the carrier and being electrically coupled to the carrier through at least one of the electrical components, the antennas being formed in the carrier in a same molding machine. The segment also includes a transmission line extending away from the coupler towards the other of the box and pin end and in communication with the one or more antennas.
Abstract:
A wired pipe system includes a wired pipe segment having a first end and a second end, a first coupler in the first end and a second coupler in the second end and a transmission line disposed in the wired pipe segment between the first and second ends. The transmission line includes a transmission cable that includes an inner conductor and an insulating material disposed about the inner conductor as well as a a wire channel surrounding the insulating material and the inner conductor for at least a portion of a length of the transmission cable. The wire channel and the insulating material are mated together by at least one mating feature.
Abstract:
An apparatus for locking a transmission line in a tubular includes a first clamp segment configured to surround at least a portion of the transmission line of the tubular, the transmission line having a longitudinal axis. The apparatus also includes a second clamp segment configured to surround at least a portion of the transmission line, the second clamp segment and the first clamp segment configured to apply radial forces in opposite radial directions when the first clamp segment is engaged with the second clamp segment, the opposite radial directions being perpendicular to the longitudinal axis, the radial forces operating together to maintain the transmission line in a fixed position relative to the tubular and maintain tension in the transmission line.
Abstract:
A system on chip comprises a responder unit comprising a set of responder elements and an access control unit associated with an authorization list and the responder unit. An entry of the authorization list defines a set of access requirements in relation to an address space identifying at least part of the responder unit. The access control unit is arranged to: receive a request for access to a target responder element among the responder elements of the responder unit, determine the corresponding set of access requirements for the received access request from the authorization list, and evaluate the request for access with respect to the determined set of access requirements and generate a first request evaluation result. A protection unit associated with the responder unit is arranged to: provide a group assignment assigning a group to each of the responder elements of the responder unit, provide a group authorization list, an entry of the group authorization list defining a set of group access requirements for the group assigned, receive the request for access to the target responder element, determine the group assigned to the target responder element from the group assignment and further determine the set of group access requirements from the group authorization list for the group assigned. The system-on-chip also evaluates the request with respect to the determined set of group access requirements and generates a second request evaluation result. Interaction with the target responder element is controlled in response to the first and/or second evaluation result.
Abstract:
A method for providing tension to a data or power transmission line in a pipe includes inserting a transmission line into a transmission line channel of a pipe. The transmission line has a first end and a second end and is inserted into a first end of the pipe second-end-first and has a first tension-load-supporting mechanism attached to the first end of the transmission line. The method includes applying a first level of tension to the transmission line in the pipe and applying a second tension-load-supporting mechanism to the second end of the transmission line while the first level of tension is applied to the transmission line. The method further includes removing the first level of tension from the transmission line to maintain a second level of tension along the transmission line between the first and second tension-load-supporting mechanisms.
Abstract:
A system on chip comprises a responder unit comprising a set of responder elements and an access control unit 484 associated with an authorization list and the responder unit. An entry of the authorization list defines a set of access requirements in relation to an address space identifying at least part of the responder unit. The access control unit is arranged to: receive a request for access to a target responder element among the responder elements of the responder unit, determine the corresponding set of access requirements for the received access request from the authorization list, and evaluate the request for access with respect to the determined set of access requirements and generate a first request evaluation result. A protection unit associated with the responder unit is arranged to: provide a group assignment assigning a group to each of the responder elements of the responder unit, provide a group authorization list, an entry of the group authorization list defining a set of group access requirements for the group assigned, receive the request for access to the target responder element, determine the group assigned to the target responder element from the group assignment and further determine the set of group access requirements from the group authorization list for the group assigned. The system-on-chip also evaluates the request with respect to the determined set of group access requirements and generates a second request evaluation result. Interaction with the target responder element is controlled in response to the first and/or second evaluation result.
Abstract:
A method of forming a wired pipe transmission line includes: providing an assembly that includes an inner conductor surrounded by an insulating material; attaching a fixation element to the assembly at or near an end thereof; providing a tubular outer conductor; disposing the assembly and the fixation element within the outer conductor; and fixedly attaching the fixation element to the inner portion of the tubular outer conductor.
Abstract:
A wired pipe segment includes a body extending from a box end to a pin end and a coupler located in one of the box and pin ends. The coupler includes a carrier having at least one electrical component disposed therein and one or more antennas supported by and spaced from the carrier and being electrically coupled to the carrier through at least one of the electrical components, the antennas being formed in the carrier in a same molding machine. The segment also includes a transmission line extending away from the coupler towards the other of the box and pin end and in communication with the one or more antennas.
Abstract:
A drillstring communications system includes one or more pipe segments, a communication sub coupled to the pipe segment that includes a communication sub antenna, and a leaky feeder antenna in communication with the communication sub antenna.
Abstract:
A downhole tool includes a tool body having an outer surface portion and an inner surface portion and a recess formed in one of the outer surface portion and inner surface portion. At least one removable electronic component access member is detachably mounted to the tool body. The removable electronic component access member provides access to electronic components housed in the recess. A metallic seal is provided on at least one of the tool body and the removable electronic component access member. The metallic seal prevents fluid ingress into the recess through the at least one removable electronic component access member.