Abstract:
Methods and systems to reduce or eliminate numerical oscillations in solutions that occur when using conventional MPFA when modeling flow in a reservoir are provided. The technique may be referred to as enriched multi-point flux approximation (EMPFA) and may be used to improve the consistency and accuracy in constructing pressure interpolations in cells for the purpose of determining flux equations used in predicting flow in a reservoir.
Abstract:
Methods for creating and using discretized physics-based models of subsurface regions, which may contain a hydrocarbon reservoir or other subsurface feature(s). The methods may include selecting a pre-solved model, applying a mesh to the pre-solved model, defining the shape of the subsurface region to be modeled, and transforming the pre-solved model, to which the mesh has been applied, to the shape of the subsurface region. In some methods, the pre-solved model is an idealized model. In some methods, the mesh is applied to a solution of potential field lines associated with the pre-solved model, and in some methods, the solution of potential field lines is a composite solution of a plurality of solutions of potential field lines. In some methods, one or more supershapes are used to define the shape of the subsurface region. In some methods, a hyperelastic strain deformation calculation is utilized for the transforming.
Abstract:
Methods for creating and using space-time surrogate models of subsurface regions, such as subsurface regions containing at least one hydrocarbon formation. The created surrogate models are explicit models that may be created from implicit models, such as computationally intensive full-physics models. The space-time surrogate models are parametric with respect to preselected variables, such as space, state, and/or design variables, while also indicating responsiveness of the preselected variables with respect to time. In some embodiments, the space-time surrogate model may be parametric with respect to preselected variables as well as to time. Methods for updating and evolving models of subsurface regions are also disclosed.
Abstract:
The transistor comprises first and second source/drain electrodes formed in a semiconductor film by N-doped and P-doped areas, respectively. A polarization voltage is applied between the two source/drain electrodes in order to impose to the P-doped electrode a potential higher than that of the N-doped electrode. The transistor comprises first and second devices for generating a potential barrier in the semiconductor film. The two potential barriers are opposed to the passage of the charge carriers emitted by the first and second source/drain electrodes, respectively. The two potential barriers are shifted with respect to an axis connecting the two source/drain electrodes. The two devices for generating a potential barrier are configured to generate a potential barrier having a variable amplitude and it are electrically connected to the gate and to the counter electrode.
Abstract:
A double-radiant-source framework used for a radiation detecting system for containers, having a horizontal accelerator, a vertical accelerator and a gantry tower composed of a left vertical girder, a right vertical girder, an upper cross girder, and a lower cross girder. A horizontal collimator and accelerator, and a vertical collimator and accelerator, are fixed on the left vertical girder and the upper cross girder of the gantry tower, respectively, and emit radiation beams as two planes oriented parallel to each other. Detector modules are disposed inside the double-detector arm of the right vertical girder, and inside the upper cross girder and the lower cross girder, respectively, to receive the two emitted planes of radiation beams. The container detecting system can reduce the area covered by the scanning channel of the system, and make the transportation, installation and use convenient, and improve the quality of the detected images.
Abstract:
A zonal isolation apparatus for an open-hole wellbore completed with a gravel pack having sections of blank pipe intermediate selected sections of sand screen, comprising a blank liner, with a first packer and second packer disposed therein. The first and second packers are set adjacent to sections of blank pipe and seal an annular area formed between the blank liner and the surrounding sections of sand screen at the first and second sections of blank pipe. The flow of fluids into the wellbore intermediate the first and second sections of blank pipe is inhibited.
Abstract:
A zonal isolation apparatus for an open-hole wellbore completed with a gravel pack having sections of blank pipe intermediate selected sections of sand screen, comprising a blank liner, with a first packer and second packer disposed therein. The first and second packers are set adjacent to sections of blank pipe and seal an annular area formed between the blank liner and the surrounding sections of sand screen at the first and second sections of blank pipe. The flow of fluids into the wellbore intermediate the first and second sections of blank pipe is inhibited.
Abstract:
The transistor comprises first and second source/drain electrodes formed in a semiconductor film by N-doped and P-doped areas, respectively. A polarization voltage is applied between the two source/drain electrodes in order to impose to the P-doped electrode a potential higher than that of the N-doped electrode. The transistor comprises first and second devices for generating a potential barrier in the semiconductor film. The two potential barriers are opposed to the passage of the charge carriers emitted by the first and second source/drain electrodes, respectively. The two potential barriers are shifted with respect to an axis connecting the two source/drain electrodes. The two devices for generating a potential barrier are configured to generate a potential barrier having a variable amplitude and it are electrically connected to the gate and to the counter electrode.
Abstract:
Soluble epidermal growth factor receptors 2 and 3 (HER2 and HER3) splice variant proteins with HER2 and HER3 antagonist activity and anti-proliferative properties, as well as the corresponding nucleic acids, are provided for treatment of proliferative diseases, in particular cancer. Also provided are compositions and methods for inducing expression of these splice variants, including splice switching oligonucleotides that modulate splicing of pre-mRNA that codes for these receptors.
Abstract:
A double-radiant-source framework used for a container detecting system, which belongs to the technical field of radiation detection, having a horizontal accelerator, a vertical accelerator and a gantry tower composed of a left vertical girder, a right vertical girder, an upper cross girder, and a lower cross girder. A horizontal collimator and a vertical collimator are disposed in front of the frontal face each of the horizontal accelerator and the vertical accelerator. The horizontal collimator and the vertical collimator are fixed on the left vertical girder and the upper cross girder of the gantry tower, respectively. The radiation beams defined by the horizontal collimator and the vertical collimator are two planes oriented parallel to each other. A double-detector arm is disposed inside the right vertical girder of the gantry tower, and detector modules are disposed inside the double-detector arm for receiving the two different planes of radiation beams defined by and emitted from the horizontal collimator and the vertical collimator. Detector modules are disposed inside the upper cross girder and the lower cross girder respectively for receiving separately radiation beams defined by and emitted from the horizontal collimator and the vertical collimator. The container detecting system can reduce the area covered by the scanning channel of the system, and make the transportation, installation and use convenient, and improve the quality of the detected images.