At present, adaptive inflow control (AICD) water-controlled completion technology is mainly applied to reservoir water control. In view of the gas AICD research still blank, this paper carried out a suitable for mechanism new type runner and flow characteristics analysis, X oilfield bottom established port completion. The structure parameter combination was analyzed optimized by orthogonal test...

Abstract Horizontal well is an important way to develop thin reservoir with edge-bottom water aquifer. For the horizontal near oil–water contact, have features of edge and bottom at same time. The productivity formula in pure or not fully applicable this type reservoir. heterogeneous composite aquifer, divided into multiple sections by using concept multi-segment well. Based on seepage mechanic...

Although the multiplication of bacteriophages (phages) has a substantial impact on the biosphere, comparatively little is known about how the external environment affects phage production. Here we report that sub-lethal concentrations of certain antibiotics can substantially stimulate the host bacterial cell’s production of some virulent phage. For example, a low dosage of cefotaxime, a cephalo...

Circular bubble plume diffusers have been confirmed as an effective technology for the restoration of the deep water system, but have never been applied in sub-deep water system. In this study, circular bubble plume diffusers were used, for the first time, to restore water quality in the Aha Reservoir, a typical sub-deep reservoir in Southwest China. Axisymmetric intrusive gravity currents were...

This paper describes new procedures for processing data acquired with 4C seismic sensors distributed as horizontal arrays on the seafloor and seismic sources positioned either at the sea surface or on the seafloor. Two types of images can be produced from 4C seismic data: a P-P image and a P-SV (converted-shear) image. For P-P imaging, the large elevation difference between deep-water seafloor ...

Four versions of the same global climate model, one with horizontal resolution of 1.8◦×3.6◦ and three with 0.2◦×0.4◦, are employed to evaluate the role of ocean bottom topography and viscosity on the spatial structure of the deep circulation. This study is motivated by several recent observational studies that find subsurface floats injected near the western boundary of the Labrador Sea most of...

The sensitivity of ventilation timescales and radiocarbon (14C) uptake to subgrid-scale mixing parameterization is studied in a global ocean model. Seven experiments are examined that are identical in every manner except their representation of subgrid-scale mixing of tracers. The cases include (i) two runs with traditional Cartesian mixing (HOR), (ii) a run with enhanced isopycnal mixing (ISO)...