Abstract: In conjunction with a communication network, for example, a downhole wireless network for transmission of data along a tubular body, disclosed herein are: (1) a variety of hardware interfacing methods with sensors and downhole tools; (2) sensing concepts that are enabled by the unique interfaces; (3) physical implementation of the integrated sensor/communication node structures; (4) related software communication protocols. The interfaces may support both data communication and power transfer.

Abstract: Disclosed herein are methods and systems for operating and maintaining downhole wireless networks. The methods and systems utilize a downhole tool, such as a downhole tool comprising a communications device, to perform maintenance on the downhole wireless network, and for overcoming and/or correcting communications errors along the network. The downhole tool may also be used for updating and reprograming communication nodes in the downhole wireless network.

Abstract: A method and system are described for wirelessly communicating within a wellbore. The method includes constructing a communication network for a wellbore accessing a subsurface region and using the communication network in hydrocarbon operations, such as hydrocarbon exploration, hydrocarbon development, and/or hydrocarbon production.

Abstract: A method and system are described for wirelessly communicating within a wellbore. The method includes constructing a communication network (e.g., which uses aliased signals as part of the configuration) for a wellbore accessing a subsurface region and using the communication network in hydrocarbon operations, such as hydrocarbon exploration, hydrocarbon development, and/or hydrocarbon production.

Abstract: A method of communicating in a wireless network. Devices are positioned such that each device communicates with one or more other devices. Some of the devices include one or more sensors. Each device is a node in the wireless network. At one of the devices, values are recorded from the sensors associated therewith. At least some of the devices, one or more recorded values from the sensors associated with said each device, and/or a sensor associated with at least one other device, are processed in accordance with a variable instruction set, to thereby generate a processed dataset. At each device, at least one of recorded values, a processed dataset associated with another device, or a revision to the variable instruction set are received from another device. At least one of the one or more recorded values, and one or more processed datasets, are transmitted at each device to another device.

Abstract: A method and system are described for communicating within a system, which may be along tubular members. The method includes constructing a communication network for tubular member, such as a wellbore accessing a subsurface region or a pipeline, and using the communication network in hydrocarbon operations, such as hydrocarbon exploration, hydrocarbon development, and/or hydrocarbon production.

Abstract: A method of communication using a wireless network is disclosed. A wireless transmission of a signal is received at a first node. The signal has a frequency signature. The frequency signature of the received signal is compared with a frequency signature of a previously received signal from a second node. If it is determined that the frequency signature of the received signal and the frequency signature of the previously received signal are within a predetermined range of similarity, the received signal and the previously received signal are accepted as having been transmitted by the second node.

Abstract: An apparatus and method for securing a piezoelectric element in an electroacoustic communications node used in a downhole wireless telemetry system. An end mass is secured to the piezoelectric element. At least one fastener attaches a pre-tensioning support plate to a housing of the node. The pre-tensioning support plate and the at least one fastener impart a tensioning force to the end mass and/or the piezoelectric element when the pre-tensioning support plate and the end mass and/or the piezoelectric element are secured to the housing.

Abstract: Provided are systems and methods for in-situ zonal assessment of multiphase fluid flow in one or more production zones of a production well, including for at least one production zone sensing one or more fluid flow parameters via at least one sensor disposed in a production zone; at least one sensor communications node being in electrical communication with an associated sensor, the at least one sensor communications node positioned along a tubular body in the production zone proximate an associated at least one sensor, and receiving signals from the associated at least one sensor; sending the acoustic signals from the at least one sensor communications node to a receiver at a surface via a series of intermediate communications nodes, node-to-node, the signals being indicative of one or more fluid flow parameters, the series of intermediate communications nodes being spaced along the tubular and configured to transmit acoustic waves; assessing one or more fluid flow parameters for the one or more production z

Abstract: A hybrid electro-acoustic system for extending battery life of a downhole wireless telemetry system.

Abstract: An electro-acoustic communications node system and method for downhole wireless telemetry, the system including a housing for mounting to or with a tubular body; a receiver transducer positioned within the housing, the receiver transducer structured and arranged to receive acoustic waves that propagate through the tubular member; a transmitter transducer and a processor, positioned within the housing and arranged to retransmit the acoustic waves to another acoustic receiver in a different housing, using the tubular member for the acoustic telemetry. In some embodiments, the transducers may be piezoelectric transducers and/or magnetostrictive transducers. Included in the housing is also a power source comprising one or more batteries. A downhole wireless telemetry system and a method of monitoring a hydrocarbon well are also provided.

Abstract: In conjunction with a communication network, for example, a downhole wireless network for transmission of data along a tubular body, disclosed herein are: (1) a variety of hardware interfacing methods with sensors and downhole tools; (2) sensing concepts that are enabled by the unique interfaces; (3) physical implementation of the integrated sensor/communication node structures; (4) related software communication protocols. The interfaces may support both data communication and power transfer.

Abstract: A method of communication using a wireless network is disclosed. A wireless transmission of a signal is received at a first node. The signal has a frequency signature. The frequency signature of the received signal is compared with a frequency signature of a previously received signal from a second node. If it is determined that the frequency signature of the received signal and the frequency signature of the previously received signal are within a predetermined range of similarity, the received signal and the previously received signal are accepted as having been transmitted by the second node.

Abstract: Provided is an acoustic housing including a cover including a first perimeter defining an open cover portion, the cover having a cover length, and a cover height, and a body including a second perimeter defining an open body portion, wherein either the first or second or both perimeters are chamfered, configured to receive one or more electrical components and to sealingly engage with the first chamfered perimeter, the body having a body length, a body height, and an under-surface, and the body including an engagement portion projecting from the under-surface and having an engagement length, an engagement height, and an engagement surface configured to engage an outer surface of a tubular.

Abstract: Disclosed herein are methods and systems for operating and maintaining downhole wireless networks. The methods and systems utilize a downhole tool, such as a downhole tool comprising a communications device, to perform maintenance on the downhole wireless network, and for overcoming and/or correcting communications errors along the network. The downhole tool may also be used for updating and reprograming communication nodes in the downhole wireless network.

Abstract: A method of communicating in a wireless network. Devices are positioned such that each device communicates with one or more other devices. Some of the devices include one or more sensors. Each device is a node in the wireless network. At one of the devices, values are recorded from the sensors associated therewith. At least some of the devices, one or more recorded values from the sensors associated with said each device, and/or a sensor associated with at least one other device, are processed in accordance with a variable instruction set, to thereby generate a processed dataset. At each device, at least one of recorded values, a processed dataset associated with another device, or a revision to the variable instruction set are received from another device. At least one of the one or more recorded values, and one or more processed datasets, are transmitted at each device to another device.

Abstract: A method and system are described for wirelessly communicating within a wellbore. The method includes constructing a communication network for a wellbore accessing a subsurface region and using the communication network in hydrocarbon operations, such as hydrocarbon exploration, hydrocarbon development, and/or hydrocarbon production.

Abstract: A method and system are described for wirelessly communicating within a wellbore. The method includes constructing a communication network (e.g., which uses aliased signals as part of the configuration) for a wellbore accessing a subsurface region and using the communication network in hydrocarbon operations, such as hydrocarbon exploration, hydrocarbon development, and/or hydrocarbon production.

Abstract: A method and system are described for communicating within a system, which may be along tubular members. The method includes constructing a communication network for tubular member, such as a wellbore accessing a subsurface region or a pipeline, and using the communication network in hydrocarbon operations, such as hydrocarbon exploration, hydrocarbon development, and/or hydrocarbon production.

Abstract: An apparatus and method for securing a piezoelectric element in an electroacoustic communications node used in a downhole wireless telemetry system. An end mass is secured to the piezoelectric element. At least one fastener attaches a pre-tensioning support plate to a housing of the node. The pre-tensioning support plate and the at least one fastener impart a tensioning force to the end mass and/or the piezoelectric element when the pre-tensioning support plate and the end mass and/or the piezoelectric element are secured to the housing.