Abstract: A method, system and computer program product for performing a drilling operation for an oil field, the oil field having a subterranean formation with geological structures and reservoirs therein. The method involves creating a finite-difference model to simulate behavior of a drilling assembly used to drill a wellbore in the drilling operation, performing a simulation of the drilling operation using the finite-difference model, analyzing a result of the simulation, and selectively modifying the drilling operation based on the analysis.

Abstract: A method is disclosed for modeling a first reservoir while drilling a wellbore into a corresponding second reservoir, the first reservoir having a plurality of stations, comprising: determining a plurality of values of net present value corresponding, respectively, to the plurality of stations of the first reservoir; and drilling the wellbore into the corresponding second reservoir in accordance with the plurality of values of net present value.

Abstract: A method for determining oil viscosity and continuous gas-oil-ratio (GOR) from nuclear magnetic resonance logs (NMR). The method includes obtaining a set of NMR data of a portion of the subterranean formation from inside the wellbore without acquiring formation fluid sample; isolating a quantitative reservoir fluid information associated with oil from oil based mud (OBM) using radial profiling of the set of NMR data, wherein the OBM is used for extracting fluid from the underground reservoir; determining GOR related information associated with the portion of the subterranean formation from the quantitative reservoir fluid information associated with oil, wherein the GOR related information is determined based on a predetermined model; and performing operations for the oilfield based on the GOR related information.

Abstract: The invention relates to a method for performing operations of an oilfield having at least one wellsite, a surface network, and a process facility, each wellsite having a wellbore penetrating a subterranean formation for extracting fluid from an underground reservoir therein.

Abstract: A method, system, and computer program product for performing oilfield surveillance operations. The oilfield has a subterranean formation with geological structures and reservoirs therein. The oilfield is divided into a plurality of patterns, with each pattern comprising a plurality of wells. Historical production/injection data is obtained for the plurality of wells. Two independent statistical treatments are performed to achieve a common objective of production optimization. In the first process, wells and/or patterns are characterized based on Heterogeneity Index results and personalities with the ultimate goal of field production optimization. In the second process, the history of the flood is divided into even time increments. At least two domains for each of the plurality of wells are determined. Each of the at least two domains are centered around each of the plurality wells. A first domain of the at least two domains has a first orientation.

Abstract: A technique facilitates asset integrity management of underground storage assets, such as underground carbon dioxide storage sites. The technique comprises establishing a paradigm for asset integrity management comprising element fields related to elements such as asset life cycle, implementation procedures, technologies, tools, and methods to obtain and evaluate data, and control/mitigation measures. Data related to the element fields is processed based on relationships established by the paradigm. Based on the analysis, information related to the integrity of the underground storage asset is output lot-use in managing the underground storage asset.

Abstract: A technique facilitates selection of underground substance storage sites. Criteria are established to enable evaluation of a plurality of underground storage sites for storing a given substance. Optimal goals or targets are determined, and the potentially numerous and varied criteria are assessed against those optimal goals. A predetermined rational method is used to process and evaluate the criteria in a manner that ultimately enables selection of a desirable storage site.

Abstract: Described herein are compositions for reducing or preventing the degradation of equipment and articles exposed to hydrogen sulfide present in high concentrations in subterranean environments (e.g., oil and gas wells). The compositions are composed of a thermoplastic resin, a thermosetting resin, or a combination thereof, and at least one compound that interacts with hydrogen sulfide from the subterranean environment. In certain aspects, the compositions are coated on the article of interest. In other aspects, the composition is used to manufacture the article and, thus, is integrated throughout the article.

Abstract: An apparatus (and corresponding method) for characterizing the fluid properties of a two phase fluid includes a restriction element (e.g., orifice plate or nozzle) along the flow path of the two phase fluid. At least one temperature sensor measures temperature of the two phase fluid flowing through the restriction element. A pressure sensor measures the pressure downstream of the restriction element. Time-of-flight measurements of pulses passing through the two phase fluid are made. The speed of sound within the two phase fluid is calculated from the time-of-flight measurements. At least one fluid property (e.g., a vapor phase fraction) of the two phase fluid is calculated from the measured pressure, the measured temperature, and the calculated speed of sound.

Abstract: A method and corresponding system is provided for determining fluid properties of a two phase fluid flowing through various portions of a wellbore. Specifically, the method and corresponding system determines fluid properties (e.g. enthalpy flux) of the two phase fluid flowing upstream of the injector portion of the wellbore as well as fluid properties (e.g., mass flow rate and enthalpy flux) of the two phase fluid at various measurement locations along the injector.

Abstract: A method and system for characterizing asphaltene gradients of a reservoir of interest and analyzing properties of the reservoir of interest based upon such asphaltene gradients. The analysis employs a correlation that relates insoluble asphaltene concentration to spectrophotometry measurement data measured at depth.

Abstract: A method and system for characterizing compositional and fluid property gradients of a reservoir of interest and analyzing properties of the reservoir of interest based upon such gradients.

Abstract: A system method and apparatus for remote upgrade of the software of an embedded device supporting packet-based communication. A packet-based communication path is provided between a remote device and the embedded device. An intermediate device is placed in the packet-based communication path as a local node directly coupled to the embedded device. The intermediate device includes packet-forwarding means for carrying out normal communication between the remote device and the embedded device. The software of the embedded device is upgraded by i) transferring software upgrade data from the remote device to the intermediate device, ii) transferring the software upgrade data from the intermediate device to the embedded device and iii) carrying out an upgrade process on the embedded device that loads the software upgrade data on the embedded device.

Abstract: A hermetic seal includes a face seal ring having a first end sealing face and a second end sealing face, a first sealing profile in contact with the first end sealing face, and a second sealing profile in contact with the second end sealing face. The face seal ring comprises a shape memory material. A hermetically-sealed, threaded joint includes a pin sub defining a first sealing profile, a box sub defining a second sealing profile, and a face seal ring comprising a shape memory material. The pin sub is threadedly engaged with the box sub. The face seal ring has a first end sealing face in contact with the first sealing profile and a second end sealing face in contact with the second sealing profile. The face seal ring is disposed about the pin sub.

Abstract: A downhole tool includes a housing defining a passageway therethrough exhibiting a first diameter and a second diameter that is smaller than the first diameter, and a first turbine disposed in the first diameter of the housing. The downhole tool further includes means for measuring a rotational velocity of the first turbine, a second turbine disposed in the second diameter of the housing, and means for measuring a rotational velocity of the second turbine.

Abstract: A method for generating and characterizing an emulsion. The method provides a Couette device having first and second cylindrical members that define an annulus between them. The second cylindrical member is rotatably driven with respect to the first cylindrical member. Two or more substances each in a non-emulsified state are injected into the annulus. The Couette device is operated in a first mode to generate an emulsion from the two or more substances. The Couette device is also operated in a second mode to measure various attributes of the emulsion.

Abstract: An improved method and system for characterizing the compositional components of a hydrocarbon reservoir of interest and analyzing fluid properties of the reservoir of interest based upon its compositional components.

Abstract: A method involves identifying work elements of a work process which may be enhanced to provide a biggest impact on enhancing an overall value of the work process. The method involves identifying a plurality of work elements comprising a work process, interviewing one or more knowledgeable interviewees and determining existing states and enhanced proposed states of the plurality of work elements, visually displaying the existing and enhanced proposed states of the work elements, and estimating and visually displaying a change in value of the work process due to an enhancement of the work elements from the existing states to the enhanced proposed states.

Abstract: A method and a system for accessing a target fluid in a formation of an oilfield are provided. The method involves acquiring physicochemical property information of a portion of the formation, determining a type and a concentration of a chemical agent based on the physicochemical property information of the portion of the formation, and applying the chemical agent at the portion of the formation to provide a chemical action, where the target fluid is released at the portion of the formation responding to the chemical action.

Abstract: Method and system are disclosed for determining hydrocarbon CDVs in a multiphase environment. The method and system involve calculating a total hydrocarbons volume from an apparent oil volume and an apparent gas volume. The apparent oil volume is determined using C/O data from a nuclear logging tool operating in inelastic neutron scattering mode. The apparent gas volume is determined using neutron porosity data from a nuclear logging tool operating in pulsed neutron capture (“PNC”) mode. It is also possible to determine the total hydrocarbons volume using log data from formation thermal neutron capture cross section measurements, or a cased hole formation resistivity tool. The total hydrocarbons volume is then used to back-calculate the total hydrocarbons CDV at various formation depths using the logged C/O data. The resulting independently calculated total hydrocarbon CDV may be used for proper matching of log data and simulation results for history matching purposes.