Abstract: A network node for connecting to a multi-drop network. The network node includes processing circuitry and physical layer (PHY) circuitry for connecting the network node to a shared network link of the multi-drop network. The processing circuitry is configured to: configure the PHY circuitry of another network node into a transmit/receive (TX/RX) loop internal to the network node that includes a PHY transceiver: send a measurement pulse on the TX/RX loop and determine a PHY time delay using a count of the TX/RX loops completed during a time duration: initiate sending. by the PHY circuitry of the other node via the shared network link. measurement pulses to a third network node: detect response pulses received via the shared network link in response to the measurement pulses: and determine a network topology of the other node and the third node using the response pulses.

Abstract: The present invention relates to a multipurpose drill system, the multipurpose drill system comprising: a drilling rig adapted to drive a drilling assembly; and two or more power sources, wherein at least one of the two or more power sources is a high pressure power source, wherein the drilling assembly is adapted to be in communication with either or both of the two or more power sources.

Abstract: A method of determining a selection of well measurements and/or their respective control parameters is described based on a global target having predetermined sensitivities to a multitude of uncertainties associated with input variables to a model including the step of ranking measurements and control parameters in accordance with their capability to reduce the uncertainties of input variables identified as most sensitive input variables through simulations using the model or a reduced variant of the model.

Abstract: Methods and apparatus for controlling the effects of slug flow in a flow line installation from a subterranean well to a production facility are described using in the flow line a flow conditioning unit, such as a flow booster and a flow choke, and a measuring device for measuring one or more parameter determined to be the most significant installation design or flow parameters correlated with the slug volume, connected to a control unit receiving input from the measuring device and using a relationship between slug volume and the one or more most significant parameters to control the flow conditioning unit.

Abstract: A method of determining a selection of well measurements and/or their respective control parameters is described based on a global target having predetermined sensitivities to a multitude of uncertainties associated with input variables to a model including the step of ranking measurements and control parameters in accordance with their capability to reduce the uncertainties of input variables identified as most sensitive input variables through simulations using the model or a reduced variant of the model.

Abstract: A method for data processing includes transforming measurement data acquired in the time domain during an oilfield operation into a second domain to produce transformed data; identifying distortions in the transformed data; removing the distortions from the transformed data; and transforming back from the second domain to the time domain to produce cleaned-up data. The transforming measurement data may use a Fourier transform or a wavelet transform. The method may further include compressing the cleaned-up data or reconstructing signals from the cleaned-up data. A method for data processing includes decomposing measurement data, which are acquired in an oilfield operation, using a low pass filter to produce a first dataset; decomposing the measurement data using a high pass filter to produce a second dataset; removing distortions from the second dataset to yield a corrected second dataset; and reconstructing a corrected dataset from the first dataset and the corrected second dataset.

Abstract: A system and method in which remote users may be billed, on a per connection basis, for universal data grade access to their home office servers. Portable device 101 is carried by a transient remote user within wireless range of an Access Point (AP) 110 deployed at, for example, a hotel or airport lounge. Signalling resource 105 inside portable device 101 automatically initiates wireless contact with AP 110. Wireless contact with AP 110 includes a data grade network address of a destination server 130 to which portable device 101 desires to be connected. AP 110 contacts destination server 130, over Internet/data grade WAN 120. Destination server 130 in turn establishes a secure tunnelled Internet Protocol (IP) 124 with portable device 101 through AP 110. Information such as data-rich files or e-mail is then automatically exchanged between destination server 130 and portable device 101.