Patents by Inventor Walter Aldred
Walter Aldred has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 10108155Abstract: A changepoint detector for modeling data received from at least one sensor in a process in the hydrocarbon industry. The data is segmented into a plurality of segments and for each segment a model is assigned and the data corresponding to the segment fit to that model. A plurality of segmentations are thus provided and these segmentations are evaluated and assigned weights indicative of the fit of the models of the segmentation to the underlying data. The segmentation models are further used to calculate a result that may be input to a process control program.Type: GrantFiled: August 1, 2014Date of Patent: October 23, 2018Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Walter Aldred, Jonathan Dunlop, James Belaskie
-
Patent number: 9598904Abstract: A drill string suitable for use in directional drilling of a borehole, comprising a rotatable shaft at the leading end of which is a drill bit, and wherein the shaft comprises a variable friction inducing member, which provides rotational friction by physical contact with an inside face of the borehole, the friction inducing member being arranged to exert a first rotational frictional force when the shaft in the vicinity of the member is substantially rotating and a second rotational frictional force when the shaft in the vicinity of the member is substantially not rotating, wherein the first rotational frictional force is less than the second rotational frictional force.Type: GrantFiled: November 8, 2010Date of Patent: March 21, 2017Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Walter Aldred, Ashley Johnson, Dean Gardner, Maurice Ringer, Devi Putra
-
Publication number: 20160244654Abstract: A drilling fluid for use when drilling a borehole includes solid polymeric objects as a lost circulation additive. The objects have an overall size extending at least 0.5 mm in each of three orthogonal dimensions have a shape such that each object has one or more edges, points or corners and/or comprises a core portion with a plurality of projections which extend out from the core portion. The objects may be moulded, 3D-printed or chopped from larger pieces of polymer by granulating machinery. Shapes with edges, points, corners or projections assisting the objects in lodging within and bridging a fracture encountered or formed while drilling.Type: ApplicationFiled: September 23, 2014Publication date: August 25, 2016Inventors: Paul WAY, David SNOSWELL, John Mervyn COOK, Louise BAILEY, Gokturk TUNC, Elizabeth Alice Gilchrist JAMIE, Walter ALDRED
-
Publication number: 20160237767Abstract: A fluid used in a borehole containing suspended solid objects made by an additive manufacturing process. An additive process of solidifying a liquid composition at a succession of selected locations within a workspace, in accordance with a digital design allows a wide variety of shapes to be made. The fluid may be a drilling fluid or a borehole treatment fluid used prior to cementing and the objects may act, possibly in conjunction with other solids, to block loss of fluid into fractures in the formation around the borehole.Type: ApplicationFiled: October 3, 2014Publication date: August 18, 2016Inventors: DAVID ROBERT EVAN SNOSWELL, PAUL WAY, JOHN COOK, LOUISE BAILEY, GOKTURK TUNC, ELIZABETH ALICE GILCHRIST JAMIE, WALTER ALDRED
-
Patent number: 9238964Abstract: Systems, methods, and devices are provided for compressing a variety of signals, such as measured signals from a hydrocarbon operation, that may be stored and/or transmitted in compressed form. Segmentation tools and techniques are used to compress the signals. Segmentation techniques include breaking a signal into segments and representing the data samples of the signal as segment boundary points, which may reflect where changes occur in the signal, and segment parameters, which may be utilized to model the segmented data. Embodiments can be used in real-time or in batch modes. New data samples can influence previous segment boundary points and/or segment parameters in some cases. Systems may modify what has already been stored or displayed as a result in revising segmentation information based on analysis utilizing the new data samples. Embodiments may utilize different Bayesian analysis techniques including the use of prior probability distributions and maximum a posteriori analyses.Type: GrantFiled: April 8, 2011Date of Patent: January 19, 2016Assignee: Schlumberger Technology CorporationInventors: Maurice Ringer, Walter Aldred, Jonathan Dunlop
-
Publication number: 20140343694Abstract: A changepoint detector for modeling data received from at least one sensor in a process in the hydrocarbon industry. The data is segmented into a plurality of segments and for each segment a model is assigned and the data corresponding to the segment fit to that model. A plurality of segmentations are thus provided and these segmentations are evaluated and assigned weights indicative of the fit of the models of the segmentation to the underlying data. The segmentation models are further used to calculate a result that may be input to a process control program.Type: ApplicationFiled: August 1, 2014Publication date: November 20, 2014Inventors: Walter Aldred, Jonathan Dunlop, James Belaskie
-
Patent number: 8838426Abstract: A changepoint detector for modeling data received from at least one sensor in a process in the hydrocarbon industry. The data is segmented into a plurality of segments and for each segment a model is assigned and the data corresponding to the segment fit to that model. A plurality of segmentations are thus provided and these segmentations ar evaluated and assigned weights indicative of the fit of the models of the segmentation t the underlying data. The segmentation models are further used to calculate a result that may be input to a process control program.Type: GrantFiled: October 14, 2009Date of Patent: September 16, 2014Assignee: Schlumberger Technology CorporationInventors: Walter Aldred, Jonathan Dunlop, James Belaskie
-
Patent number: 8544560Abstract: A drive mechanism is described for moving/controlling objects/mechanisms/systems coupled with a drillstring and/or pipe. The drive mechanism may be axially arranged on a drillstring or pipe, compact, capable of fine control and delivering high torque or the like and may be electrically and/or hydraulically powered. The drive mechanism may comprising a driving member comprising a plurality of drivers linearly translatable with respect to the driving member, each driving member having at their ends a male engaging portion and an associated driven member, comprising a plurality of female receiving portions adapted to receive a male engaging portion, the arrangement being such that linear translation of a driver causes its engaging portion to engage with a female receiving portion and the action of the engaging portion produces a reaction in the receiving portion causing displacement of the driven member in a direction other than that of the translatable driver.Type: GrantFiled: November 3, 2009Date of Patent: October 1, 2013Assignee: Schlumberger Technology CorporationInventors: William Bertram, Walter Aldred, Ashley Johnson, Frank Espinosa, Michael Barrett, Carlos Delgado
-
Publication number: 20130135114Abstract: Systems, methods, and devices are provided for compressing a variety of signals, such as measured signals from a hydrocarbon operation, that may be stored and/or transmitted in compressed form. Segmentation tools and techniques are used to compress the signals. Segmentation techniques include breaking a signal into segments and representing the data samples of the signal as segment boundary points, which may reflect where changes occur in the signal, and segment parameters, which may be utilized to model the segmented data. Embodiments can be used in real-time or in batch modes. New data samples can influence previous segment boundary points and/or segment parameters in some cases. Systems may modify what has already been stored or displayed as a result in revising segmentation information based on analysis utilizing the new data samples. Embodiments may utilize different Bayesian analysis techniques including the use of prior probability distributions and maximum a posteriori analyses.Type: ApplicationFiled: April 8, 2011Publication date: May 30, 2013Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Maurice Ringer, Walter Aldred, Jonathan Dunlop
-
Publication number: 20130105220Abstract: A drill string suitable for use in directional drilling of a borehole, comprising a rotatable shaft at the leading end of which is a drill bit, and wherein the shaft comprises a variable friction inducing member, which provides rotational friction by physical contact with an inside face of the borehole, the friction inducing member being arranged to exert a first rotational frictional force when the shaft in the vicinity of the member is substantially rotating and a second rotational frictional force when the shaft in the vicinity of the member is substantially not rotating, wherein the first rotational frictional force is less than the second rotational frictional force.Type: ApplicationFiled: November 8, 2010Publication date: May 2, 2013Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Walter Aldred, Ashley Johnson, Dean Gardner, Maurice Ringer, Devi Putra
-
Patent number: 8181510Abstract: A method and system is disclosed for automatically correcting for depth errors in measurements taken from a drillstring during the drilling phase of the construction of a hydrocarbon wellbore. The correction is based on a stress profile which in turn is based on the states of the drilling rig, drill string description length spec, borehole description trajectory, friction factor and weight on bit.Type: GrantFiled: September 28, 2004Date of Patent: May 22, 2012Assignee: Schlumberger Technology CorporationInventors: Walter Aldred, Maurice Ringer
-
Publication number: 20110220410Abstract: A changepoint detector for modeling data received from at least one sensor in a proces in the hydrocarbon industry. The data is segmented into a plurality of segments and fo each segment a model is assigned and the data corresponding to the segment fit to tha model. A plurality of segmentations are thus provided and these segmentations ar evaluated and assigned weights indicative of the fit of the models of the segmentation t the underlying data. The segmentation models are further used to calculate a result tha may be input to a process control program.Type: ApplicationFiled: September 14, 2009Publication date: September 15, 2011Applicant: Schlumberger Technology CorporationInventors: Walter Aldred, Jonathan Dunlop, James Belaskie
-
Publication number: 20100294569Abstract: A method of removing cuttings from a workfront of a lateral borehole hole being drilled from a main borehole by a drilling tool is provided. The drilling tool comprising a tool body including a motor, an axial drive mechanism for advancing the tool body in the well, and a drill bit powered by the motor for drilling the underground formation at the workface and producing cuttings as the tool is advanced. The drilling tool is preferably connected to the surface by means of a cable extending through the lateral borehole and main borehole. The method independently comprising transporting the drilled cuttings from the workface to the part of the lateral borehole immediately behind the drilling tool. Transporting the drilled cuttings from immediately behind the drilling tool to the junction of the lateral borehole and the main well. And transporting the cuttings from the junction to a place of disposal.Type: ApplicationFiled: November 14, 2008Publication date: November 25, 2010Inventors: Walter Aldred, Iain Cooper, Paul Hammond
-
Patent number: 7578350Abstract: A system for controlling gas in a subsea drilling operation is disclosed in one embodiment. The system includes a subsea blow-out preventer, riser coupled to the blow-out preventer, a gas sensor, a controller, and a signal pathway. The gas sensor is configured for placement below the riser and configured to contact wellbore fluids during normal drilling operation. The controller configured to automatically cause manipulation the blow-out preventer based upon information from the gas sensor. The signal pathway couples the gas sensor with the controller.Type: GrantFiled: November 29, 2006Date of Patent: August 25, 2009Assignee: Schlumberger Technology CorporationInventors: Iain Cooper, Walter Aldred
-
Publication number: 20080123470Abstract: A system for controlling gas in a subsea drilling operation is disclosed in one embodiment. The system includes a subsea blow-out preventer, riser coupled to the blow-out preventer, a gas sensor, a controller, and a signal pathway. The gas sensor is configured for placement below the riser and configured to contact wellbore fluids during normal drilling operation. The controller configured to automatically cause manipulation the blow-out preventer based upon information from the gas sensor. The signal pathway couples the gas sensor with the controller.Type: ApplicationFiled: November 29, 2006Publication date: May 29, 2008Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Iain Cooper, Walter Aldred
-
Publication number: 20070029112Abstract: The disclosure has application for use in conjunction with an operation of drilling an earth borehole using: a drilling rig, a drill string having its generally upper end mechanically coupleable with and suspendable from the drilling rig, and a bottom hole assembly adjacent the lower end the drill string, the bottom hole assembly including a drill bit at its lower end.Type: ApplicationFiled: August 3, 2006Publication date: February 8, 2007Inventors: Qiming Li, Brian Clark, Shyam Mehta, Remi Hutin, Christopher Reed, David Santoso, Lise Hvatum, Raghu Madhavan, Jean-Marc Follini, Geoffrey Downton, Walter Aldred
-
Publication number: 20050189142Abstract: A method and apparatus for drilling at least one wellbore from an offsite location is provided. Each wellbore is located at a wellsite having a drilling rig with a downhole drilling tool suspended therefrom. The downhole drilling tool is selectively advanced into the earth to form the wellbore. The downhole drilling tool is operated according to a wellsite setup. Wellsite parameters are collected from a plurality of sensors positioned about the wellsite. The wellsite parameters are transmitted to an offsite control center. The offsite control center performs an analysis of the wellsite parameters and automatically adjusts the wellsite setup from the offsite control center based on the analysis.Type: ApplicationFiled: March 1, 2004Publication date: September 1, 2005Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Ernesto Garcia, Dimitrios Pirovolou, Walter Aldred, Reinhart Ciglenec, Jacques Tabanou