Efficient development strategies for large ultra-deep structural gas fields in China
نویسندگان
چکیده
منابع مشابه
Skipping Strategies for Efficient Structural Joins
The structural join is considered a core operation in processing and optimizing XML queries. Various techniques have been proposed for efficiently finding structural relationships between a list of potential ancestors and a list of potential descendants. This paper presents a novel algorithm for efficiently processing structural joins. Moreover, previous work which performs well usually relies ...
متن کاملEfficient Inference in Large Conditional Random Fields
Conditional Random Fields (CRFs) are widely known to scale poorly, particularly for tasks with large numbers of states or with richly connected graphical structures. This is a consequence of inference having a time complexity which is at best quadratic in the number of states. This paper describes a novel parameterisation of the CRF which ties the majority of clique potentials, while allowing i...
متن کاملInnovated Scalable Efficient Estimation in Ultra - Large Gaussian Graphical Models
Large-scale precision matrix estimation is of fundamental importance yet challenging in many contemporary applications for recovering Gaussian graphical models. In this paper, we suggest a new approach of innovated scalable efficient estimation (ISEE) for estimating large precision matrix. Motivated by the innovated transformation, we convert the original problem into that of large covariance m...
متن کاملdevelopment and implementation of an optimized control strategy for induction machine in an electric vehicle
in the area of automotive engineering there is a tendency to more electrification of power train. in this work control of an induction machine for the application of electric vehicle is investigated. through the changing operating point of the machine, adapting the rotor magnetization current seems to be useful to increase the machines efficiency. in the literature there are many approaches wh...
15 صفحه اولGalaxy number counts - V. Ultra-deep counts: The Herschel and Hubble Deep Fields
We present u, b, r & i galaxy number counts and colours both from the North and South Hubble Space Telescope Deep Fields and from the William Herschel Deep Field. The latter comprises a 7 × 7 area of sky reaching b ∼28.5 at its deepest. Following Metcalfe et al. (1996) we show that simple Bruzual & Charlot evolutionary models which assume exponentially increasing star-formation rates with look-...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Petroleum Exploration and Development
سال: 2018
ISSN: 1876-3804
DOI: 10.1016/s1876-3804(18)30011-9