Abstract: A method of severing a tubing string of a well system comprising: positioning a jet cutter within the tubing string, wherein the jet cutter comprises: (A) a main explosive load, wherein upon detonation or deflagration of the main explosive load, a jet propagates radially outward in a circle from an apex of the main explosive load; and (B) a liner, wherein the liner is truncated at the apex, and wherein the amount of truncation is selected such that the jet has a greater tip velocity compared to a substantially identical jet cutter without the truncated liner; and causing the main explosive load to detonate or deflagrate, wherein the tubing string of the well system is severed due to the detonation or deflagration.

Abstract: It is sometimes necessary to sever a downhole tubular structure in the course of conducting subterranean operations. Detonation of an explosive material may be used to sever a tubular structure in some instances. Downhole severing tools may comprise: a housing; a two-stage energizing material within the housing, the two-stage energizing material comprising a high explosive and a reactive energizing material; at least one initiator coupled to the two-stage energizing material at least at a first location; and a detonator coupled to the at least one initiator; wherein upon detonation of the two-stage energizing material, the high explosive undergoes a primary reaction that propagates a secondary reaction of the reactive energizing material.

Abstract: A method of severing a tubing string of a well system comprising: positioning a jet cutter within the tubing string, wherein the jet cutter comprises: (A) a main explosive load, wherein upon detonation or deflagration of the main explosive load, a jet propagates radially outward in a circle from an apex of the main explosive load; and (B) a liner, wherein the liner is truncated at the apex, and wherein the amount of truncation is selected such that the jet has a greater tip velocity compared to a substantially identical jet cutter without the truncated liner; and causing the main explosive load to detonate or deflagrate, wherein the tubing string of the well system is severed due to the detonation or deflagration.

Abstract: It is sometimes necessary to sever a downhole tubular structure in the course of conducting subterranean operations. Detonation of an explosive material may be used to sever a tubular structure in some instances. Downhole severing tools may comprise: a housing; a two-stage energizing material within the housing, the two-stage energizing material comprising a high explosive and a reactive energizing material; at least one initiator coupled to the two-stage energizing material at least at a first location; and a detonator coupled to the at least one initiator; wherein upon detonation of the two-stage energizing material, the high explosive undergoes a primary reaction that propagates a secondary reaction of the reactive energizing material.

Abstract: A framework for identifying and resolving inconsistencies between multiple data sources is provided. Identification data that indicates rules for identifying inconsistencies between multiple data sources is stored. Rule data that indicates rules for resolving inconsistencies between the multiple data sources is also stored. The rules contained in the identification data are evaluated by an inconsistency identifier. Based on the evaluation, the inconsistency identifier generates output data that identifies the inconsistencies between the multiple data sources. The output data may be stored in a persistent store. Reports and user interfaces may be generated that present the generated output data. An inconsistency resolver processes the output data and the rule data to resolve one or more of the inconsistencies that are identified in the output data in a manner indicated by the rules represented in the rule data.

Abstract: Method and system for improving relevancy of online search results are disclosed. The method includes collecting highlighted phrases from users who review one or more documents at one or more websites, aggregating the highlighted phrases about the one or more documents in a distributed hash table, ranking relevancy of the highlighted phrases according to frequency of occurrences of similar phrases, generating search relevancy data to be used by a search relevancy algorithm of a search engine, and generating search results in response to a search query using the search relevancy data.

Abstract: One embodiment of the present invention provides a system that enhances reliability, availability and serviceability in a computer system by replacing a signal from a failed sensor with an estimated signal derived from correlations with other instrumentation signals in the computer system. During operation, the system determines whether a sensor has failed in the computer system while the computer system is operating. If so, the system uses an estimated signal for the failed sensor in place of the actual signal from the failed sensor during subsequent operation of the computer system, wherein the estimated signal is derived from correlations with other instrumentation signals in the computer system. This allows the computer system to continue operating without the failed sensor.