Patents by Inventor Milos Milosevic
Milos Milosevic 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).
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Patent number: 10601464Abstract: Methods and systems for multiple carrier frequency, half duplex cable telemetry for a wellsite. The methods involve generating a first type of bi-directional message in a first propagation mode, generating a second type of bi-directional message in the first propagation mode and in a second propagation mode, transmitting over a cable operatively coupling a surface modem and a downhole modem the first and second types of bi-directional message sequentially in a plurality of time periods across a single frequency bandwidth, and separating each of the first and second types of bi-directional message from a most subsequently transmitted one of the first and second types of bi-directional message by a quiet time sample during which no message is transmitted.Type: GrantFiled: April 1, 2019Date of Patent: March 24, 2020Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Alex Olson, Nalin Weerasinghe, Kun Wang, Milos Milosevic
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Publication number: 20190229767Abstract: Methods and systems for multiple carrier frequency, half duplex cable telemetry for a wellsite. The methods involve generating a first type of bi-directional message in a first propagation mode, generating a second type of bi-directional message in the first propagation mode and in a second propagation mode, transmitting over a cable operatively coupling a surface modem and a downhole modem the first and second types of bi-directional message sequentially in a plurality of time periods across a single frequency bandwidth, and separating each of the first and second types of bi-directional message from a most subsequently transmitted one of the first and second types of bi-directional message by a quiet time sample during which no message is transmitted.Type: ApplicationFiled: April 1, 2019Publication date: July 25, 2019Inventors: Alex Olson, Nalin Weerasinghe, Kun Wang, Milos Milosevic
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Publication number: 20180217286Abstract: Systems and methods for selecting the best logging data for petrophysical modelling and completion optimization by analyzing sensitivity and errors in the logging data.Type: ApplicationFiled: July 20, 2015Publication date: August 2, 2018Applicant: HALLIBURTON ENERGY SERVICES, INC.Inventors: Mehdi Eftekhari FAR, John Andrew QUIREIN, Jim Michael WITKOWSKY, Daniel Robert BULLER, Milos MILOSEVIC
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Patent number: 9911323Abstract: Toolstring topology mapping systems having a downhole toolstring including a master node controller and a plurality of nodes and related methods. The methods involve querying each of the plurality of nodes in the downhole toolstring for actual topology information, receiving actual topology information from each of the plurality of nodes in the downhole toolstring in response to querying, and generating a topology map of the downhole toolstring based on the actual topology information from each of the plurality of nodes in the downhole toolstring. The methods can also involve comparing the topology map with the input topology information to identify topology mismatch and then take remedial actions if needed.Type: GrantFiled: December 4, 2012Date of Patent: March 6, 2018Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: David Santoso, Takeaki Nakayama, Hiromasa Nishisaka, Yuichi Kobayashi, Nalin Weerasinghe, Milos Milosevic, Eric Jeanson, Kun Wang, Motohiro Nakanouchi
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Publication number: 20170240406Abstract: A system for dispensing a liquid from a bottle 13 comprises an assembly 17, 18 and a stopper 19 to be introduced into a bottleneck, which stopper can be separated from the assembly. The stopper 19 comprises a liquid dispensing pipe 14, 16 with a electromagnetic valve 15 and a gas path 12 having a check valve 11 therein. The assembly comprises a solenoid 10 and a tank 1 containing gas for driving the liquid from the bottle. The tank is connected via a further electromagnetic valve 3 to gas pipes 8 and 9. The stopper which closes off the bottle can be connected to the assembly such that gas pipe 9 connects with check valve 12 and solenoid 10 surrounds electromagnetic valve 15. By actuating programmable button switch 4 both electromagnetic valves 3, 15 open for a preset time so that a metered quantity of liquid is dispensed from the bottle. Alternatively, another button switch 5 allows to dispense a non-preset volume of liquid.Type: ApplicationFiled: July 24, 2015Publication date: August 24, 2017Inventors: Jasmina PEROVIC, Bojan LAZIC, Milos MILOSEVIC, Uros TATIC, Simon SEDMAK
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Patent number: 9672283Abstract: Information is obtained from the Internet is combined with processed and rated information from social networking services by a structured and social data aggregator providing highly relevant search results. In accordance with an embodiment of the present invention, there is provided a product information crawler, which crawls the Internet in search of web pages relevant to a requested subject or product. The product information crawler conveys captured web pages to a structured data extractor, which extracts product information. A social networking crawler crawls social networking services in search of social network information to the requested subject or product. The processed product information and processed social network information is conveyed to an information aggregator, which merges the information and stores it in a data store that can be queried by a user.Type: GrantFiled: June 5, 2013Date of Patent: June 6, 2017Assignee: Data Record ScienceInventors: Derek Edwin Pappas, Milos Milosevic
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Patent number: 9535185Abstract: Methods and systems for failure point diagnostics in cable telemetry at a wellsite. The methods involve providing a system includes a cable operatively coupling between a surface modem and a downhole modem that is operatively coupled to a downhole toolstring of one or more downhole tools via a toolbus. The methods further involve generating a plurality of test signals, sequentially applying the test signals across one or more test loops in the cable telemetry system, and generating a failure point alert when at least one of the test signals fails in at least one of the test loops. The failure point alert identifies which component of the cable telemetry system caused the test signal to fail.Type: GrantFiled: December 4, 2012Date of Patent: January 3, 2017Assignee: Schlumberger technology CorporationInventors: Alex Olson, Nalin Weerasinghe, Milos Milosevic, Kun Wang, Motohiro Nakanouchi, Kenji Endo, Yuichi Kobayashi, Hiromasa Nishisaka
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Patent number: 9154186Abstract: Systems and methods for toolstring communication in cable telemetry. The methods involve positioning a cable telemetry system in a wellbore. The cable telemetry system can include a surface modem, a downhole toolstring of downhole tools, a downhole modem operatively coupled to the downhole toolstring, a cable operatively coupling between the surface modem and the downhole modem, and a surface data routing module that polls and trains the cable telemetry system. The methods also involve performing a pre-transmission poll of a rate requirement for the downhole toolstring and a telemetry type for the downhole modem, applying a training phase to establish a transmission link between the surface modem and the downhole modem, configuring data obtained by the downhole toolstring for an uplink via the transmission link, and transmitting the uplink via the transmission link.Type: GrantFiled: December 4, 2012Date of Patent: October 6, 2015Assignee: Schlumberger Technology CorporationInventors: Hiromasa Nishisaka, Takeaki Nakayama, Milos Milosevic, Eric Jeanson, Nalin Weerasinghe, Kun Wang, Yuichi Kobayashi, Motohiro Nakanouchi, David Santoso, Alex Olson
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Publication number: 20140354446Abstract: Cable telemetry synchronization systems and methods. The synchronization can involve positioning downhole equipment into a wellbore via a cable operatively coupled to a surface module that can include a telemetry system master clock. The downhole equipment can include a toolbus master node and at least one slave node module having a node clock operatively coupled to the toolbus master node. The synchronization can also involve sending a frame start command to the at least one slave node module from the toolbus master node at predetermined intervals, receiving a clock value from each of the at least one slave node module, calculating a clock offset for each of the at least one slave node module, and sending an absolute clock value and the calculated clock offset for each of the at least one slave node module via a downlink synchronization command to the at least one slave node module.Type: ApplicationFiled: December 19, 2012Publication date: December 4, 2014Applicant: Schlumberger Technology CorporationInventors: Takeaki Nakayama, Yuichi Kobayashi, Kun Wang, Nalin Weerasinghe, Milos Milosevic, David Santoso, Yasumasa Fujisawa, Thi Huong Lien Nguyen, Tsubasa Tanaka
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Publication number: 20140152457Abstract: Systems and methods for toolstring communication in cable telemetry. The methods involve positioning a cable telemetry system in a wellbore. The cable telemetry system can include a surface modem, a downhole toolstring of downhole tools, a downhole modem operatively coupled to the downhole toolstring, a cable operatively coupling between the surface modem and the downhole modem, and a surface data routing module that polls and trains the cable telemetry system. The methods also involve performing a pre-transmission poll of a rate requirement for the downhole toolstring and a telemetry type for the downhole modem, applying a training phase to establish a transmission link between the surface modem and the downhole modem, configuring data obtained by the downhole toolstring for an uplink via the transmission link, and transmitting the uplink via the transmission link.Type: ApplicationFiled: December 4, 2012Publication date: June 5, 2014Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Hiromasa Nishisaka, Takeaki Nakayama, Milos Milosevic, Eric Jeanson, Nalin Weerasinghe, Kun Wang, Yuichi Kobayashi, Motohiro Nakanouchi, David Santoso, Alex Olson
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Publication number: 20140152460Abstract: Toolstring topology mapping systems having a downhole toolstring including a master node controller and a plurality of nodes and related methods. The methods involve querying each of the plurality of nodes in the downhole toolstring for actual topology information, receiving actual topology information from each of the plurality of nodes in the downhole toolstring in response to querying, and generating a topology map of the downhole toolstring based on the actual topology information from each of the plurality of nodes in the downhole toolstring. The methods can also involve comparing the topology map with the input topology information to identify topology mismatch and then take remedial actions if needed.Type: ApplicationFiled: December 4, 2012Publication date: June 5, 2014Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: David Santoso, Takeaki Nakayama, Hiromasa Nishisaka, Yuichi Kobayashi, Nalin Weerasinghe, Milos Milosevic, Eric Jeanson, Kun Wang, Motohiro Nakanouchi
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Publication number: 20140152459Abstract: Methods and systems for multiple carrier frequency, half duplex cable telemetry for a wellsite. The methods involve generating a first type of bi-directional message in a first propagation mode, generating a second type of bi-directional message in the first propagation mode and in a second propagation mode, transmitting over a cable operatively coupling a surface modem and a downhole modem the first and second types of bi-directional message sequentially in a plurality of time periods across a single frequency bandwidth, and separating each of the first and second types of bi-directional message from a most subsequently transmitted one of the first and second types of bi-directional message by a quiet time sample during which no message is transmitted.Type: ApplicationFiled: December 4, 2012Publication date: June 5, 2014Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Alex Olson, Nalin Weerasinghe, Kun Wang, Milos Milosevic
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Publication number: 20140152456Abstract: Methods and systems for failure point diagnostics in cable telemetry at a wellsite. The methods involve providing a system includes a cable operatively coupling between a surface modem and a downhole modem that is operatively coupled to a downhole toolstring of one or more downhole tools via a toolbus. The methods further involve generating a plurality of test signals, sequentially applying the test signals across one or more test loops in the cable telemetry system, and generating a failure point alert when at least one of the test signals fails in at least one of the test loops. The failure point alert identifies which component of the cable telemetry system caused the test signal to fail.Type: ApplicationFiled: December 4, 2012Publication date: June 5, 2014Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Alex Olson, Nalin Weerasinghe, Milos Milosevic, Kun Wang, Motohiro Nakanouchi, Kenji Endo, Yuichi Kobayashi, Hiromasa Nishisaka
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Publication number: 20130332460Abstract: Information is obtained from the Internet is combined with processed and rated information from social networking services by a structured and social data aggregator providing highly relevant search results. In accordance with an embodiment of the present invention, there is provided a product information crawler, which crawls the Internet in search of web pages relevant to a requested subject or product. The product information crawler conveys captured web pages to a structured data extractor, which extracts product information. A social networking crawler crawls social networking services in search of social network information to the requested subject or product. The processed product information and processed social network information is conveyed to an information aggregator, which merges the information and stores it in a data store that can be queried by a user.Type: ApplicationFiled: June 5, 2013Publication date: December 12, 2013Inventors: Derek Edwin Pappas, Milos Milosevic
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Patent number: 6781965Abstract: A simple fast and robust echo canceller for both synchronous and asynchronous multicarrier transceiver systems. A first residual time domain echo component is separated from a receive signal in a first frame and a second residual time domain echo component is separated from a receive signal in the next consecutive frame. The first and second residual time domain echo components from consecutive frames are combined to obtain a combined residual time domain echo component. The combined residual time domain echo component is used to adaptively update coefficients in a transfer function representing an estimate of the echo channel in the multicarrier transceiver system. The separation of the echo components from the receive signal eliminates dependence on the receive signal so that convergence is substantially faster and not signal dependent. Performance of the echo canceller is virtually independent of the receive signal and allows reliable tracking of changes in the echo channel over time.Type: GrantFiled: April 5, 2000Date of Patent: August 24, 2004Assignee: Freescale Semiconductor, Inc.Inventors: Milos Milosevic, Peter R. Molnar, Takao Inoue, Matthew A. Pendleton