Entries |
Document | Title | Date |
20090033331 | OPTICAL FIBER LANDING INDICATOR WITH DISTRIBUTED TEMPERATURE SENSOR CALIBRATION - An optic fiber cable landing indicator includes a housing; a landing head receptive to an optic fiber cable plug and translatable within the housing; and an electronics module at the housing and responsive to movement of the landing head to initiate a signal readable at a remote location confirming landing of the optic fiber cable and method to confirm fiber optic landing. | 02-05-2009 |
20090072831 | Source Monitoring for Electromagnetic Surveying - Method for real time monitoring of the waveform transmitted by an electromagnetic survey source, using a near-source monitoring receiver to measure electromagnetic field and transmitting the measured signal in real time to a control location. | 03-19-2009 |
20090243613 | Method and Apparatus for Utilizing Time Division Multiple Waveform Transmitting - A method and apparatus of constructing a signal for a controlled source electromagnetic survey is described. In one embodiment, a method is described that includes determining a first waveform and a second waveform, the first waveform and second waveform related to a combined frequency spectrum and bandwidth associated with a geophysical survey line. Then, a signal is constructed by sequencing the first waveform with the second waveform. This signal may be utilized in a transmitter, which may be pulled by a vessel along the geophysical survey line. | 10-01-2009 |
20090243614 | SIGNAL GENERATOR FOR ELECTROMAGNETIC SURVEYING THAT PRODUCES A SIGNAL HAVING AN ANALOG CONTINUOUS WAVEFORM - To perform an electromagnetic (EM) surveying of a subterranean structure, a signal generator produces a signal having an analog continuous waveform without steps in the waveform. An antenna is responsive to the signal having the analog continuous waveform to emit an EM field to produce the EM surveying of the subterranean structure. | 10-01-2009 |
20110068794 | TEMPERATURE AND PRESSURE TRANSDUCER - Methods for making and systems employing pressure and temperature sensors are described. Embodiments include a capacitive element including a first conductor plate and a second conductor plate. Each plate includes a conductor layer formed on a substrate. In a pressure sensor embodiment, seal is positioned at or near the edges of the conductor plates, and a gas retained in a gap defined between the plates. In a temperature sensor embodiment, the gap defined between the plates is in fluid communication with the external environment. | 03-24-2011 |
20140266210 | APPARATUS AND METHODS OF COMMUNICATION WITH WELLBORE EQUIPMENT - Apparatus and methods for acquiring data in a wellbore containing three or more casing or tubing strings through the use of inductive couplers to transmit power and signal through one or more fluid filled annular spaces and one or more casing or tubular elements. | 09-18-2014 |
20160033672 | METHOD FOR DETERMINING GEOLOGICAL SURFACE AND SUBSURFACE RESISTIVITY - A method for determining geological subsurface resistivity. The method includes obtaining a set of lightning parameters associated with a lighting strike received by a geological volume of material, the set of lightning parameters including an indicium of the current of the lightning strike at a first initial time and an indicium of the current of the lightning strike at a first decay time subsequent to the first initial time, and inferring the resistance of the volume of geological material, at least in part, from the set of lightning parameters. | 02-04-2016 |
20160061762 | TAPERED SOIL MOISTURE SENSOR ARRANGEMENT AND METHOD OF INSTALLATION - The field of the invention is soil sensors and in particular the sensor clement housing for the placement of a soil sensor housing in the soil. The housing having a body adapted for housing a soil moisture sensor arrangement wherein sensors are arranged within and along the length of the housing, the body having a head end and an inserted end, the body shaped so that the maximum outer diameter of the inserted end is smaller than the maximum outer diameter of the head end of the body, and the body adapted to be inserted into the prepared opening such that the outer surface of the body is in conformance with the soil forming the prepared opening along the full length of the housing. The housing including, at least one capacitive sensor, where a first capacitive element of the sensor has a maximum outer diameter, arid a second capacitive element of the sensor has a maximum outer diameter smaller than the maximum outer diameter of the first capacitive element and the second capacitive element being spaced longitudinally along the housing from the first capacitive element and located closer to the inserted end than the first capacitive clement. | 03-03-2016 |