Patent application number | Description | Published |
20080272931 | Method and Apparatus for Measuring a Parameter within the Well with a Plug - The invention provides a system for measuring a parameter within a well comprising: a first apparatus comprising a first reel of first wound optic fiber line (or fiber) able to be unwound from the first reel, at least a first sensor able to measure the parameter of the well, wherein information on said parameter can be transmitted trough the first optic fiber; a second apparatus comprising a second reel of second wound optic fiber line able to be unwound from the second reel, an extremity of the second optic fiber being fixed to a reference point; a light transmitter or receiver device linked to the reference point and able to generate or detect a light pulse through the second optic fiber line; and means to exchange said light pulse between first and second optic fiber line. | 11-06-2008 |
20090219171 | Method and Apparatus for Locating A Plug Within the Well - The invention provides an apparatus for determining the location and/or the displacement of an object ( | 09-03-2009 |
20110094741 | METHODS AND APPARATUS FOR MEASURING RETURN FLOW IN A WELL - The invention provides apparatus for use in a wellbore ( | 04-28-2011 |
20110284244 | Method And Apparatus For Suspending A Cable In A Pipe - Apparatus ( | 11-24-2011 |
20120073805 | METHOD FOR MONITORING CEMENT PLUGS - A method for method of monitoring the parameters of a cement plug ( | 03-29-2012 |
20120234101 | Pressure and Measurement by Means of An Optical Fiber - An optical fiber (FD) that can be used for measuring pressure is arranged as follows. The optical fiber (FD) comprises a core (CO) and a cladding (CL) surrounding and contacting the core (CO). A stress-applying arrangement (SE | 09-20-2012 |
20130306308 | Equipment and Methods for Determining Waiting-on-Cement Time in a Subterranean Well - Improved equipment and methods for determining the waiting-on-cement time after a cementing operation involve an optic-fiber coil that immersed in the cement slurry downhole. The intensity of a reflected light signal from the coil is monitored versus time. Attenuation of the reflected-light intensity corresponds to the development of gel strength, allowing operators to unambiguously determine when well-bore operations may recommence after a cement job. The optic-fibre coil is wound around a spool such that there is at least one coil crossing on the spool. | 11-21-2013 |
20140139820 | Methods for Measuring Fluid Flow in Subterranean Wells - A flow sensing apparatus includes a light source, at least one fiber Bragg grating and at least one optical fiber. The apparatus may be inserted into a flowing fluid stream, and the fiber Bragg grating detects the vortices of the Von Karman street in the wake of the apparatus. The fiber Bragg grating reflects light emitted from the light source, and the spectral nature of the reflected light provides information concerning the fluid velocity in the flowing stream. | 05-22-2014 |
20140196893 | Equipment and Methods for Deploying Line in a Wellbore - Many wellbore service operations involve placing a line in the wellbore. The line may be used to transmit power to downhole tools, convey signals from downhole-measurement instruments, or both. A problem associated with such operations involves drag forces experienced by the line as process fluids flow through the well, particularly the interior of a tubular body such as casing. The drag forces may cause the line to fail. Magnetizing the line solves this problem. During deployment, the line will migrate and become attached to the casing. Drag forces are significantly reduced because the line is no longer surrounded by moving fluid. | 07-17-2014 |
20140376332 | Optical Fiber Well Deployment for Seismic Surveying - Disclosed are a system, apparatus, and method for optical fiber well deployment in seismic optical surveying. Embodiments of this disclosure may include methods of deploying a spooled optical fiber distributed sensor into the wellbore integrated in a ballast or weight for a seismic optic tool, to achieve deployment of a lightweight disposable fiber optic cable against the wellbore walls via gravity. The method may further include unspooling the spooled optical fiber distributed sensor and using the optical fiber as a distributed seismic receiver. Once the fiber optic distributed sensor is deployed according to methods of the present disclosure, surveys may be obtained and processed by various methods. | 12-25-2014 |