To determine how fracture–vuggy structure, pressure, and injection–production mode influence displacement efficiency in the water flooding process in fracture–vuggy reservoirs, two types of models were built based on the characteristic of such reservoir: two fracture models with different fracture apertures and two fracture– vuggy models with different sizes of vugs. A series of twophase fluid ...

An application of marker-controlled segmentation in petroleum engineering is presented. The images to be segmented originate from high-resolution conductivity measurements of borehole walls. These measurements reflect the composition and structure of the rock formation through which the well was drilled. In this application, we detect and measure small cavities, or vugs, in the walls. We use th...

To assess the high-pressure production characteristics of double-vug reservoirs with bottom water in Tahe Oilfield, this study, a physical simulation experiment apparatus is built for water. The “vug-fracture-vug” under different are studied experimentally, and fracture-vug relationship oil recovery rates explored. According to findings, rate significantly affects development effect water, prov...

[1] Vug waves are a joint deformation/fluid-migration mechanism in which a rock deforms by the movement of a penny-shaped, fluid-filled crack dislocation across a plane of shear, with migration of the crack and fluid driven by the release of elastic shear strain energy. Vug waves (here so named because a ‘‘vug’’ is a hole in the Earth and ‘‘wave’’ implies that it moves) may provide an effective...

Abstract. A numerical procedure for the evaluation of equivalent permeability tensor for fractured vuggy porous media is presented. At first we proposed a new conceptual model, i.e., discrete fracture-vug network model, to model the realistic fluid flow in fractured vuggy porous medium on fine scale. This new model consists of three systems: rock matrix system, fractures system, and vugs system...

The Mishrif Formation is an important succession that was deposited during the Cenomanian–Early Turonian. More than 79 thin sections of core in addition to well log data for from 2 boreholes within E oilfield (E-1, and E- 2) were used determine different associations facies interpret depositional environment Formation. Six major microfacies diagnosed Formation, Mudstone, Wackestone, Packstone, ...

Tarim Basin newly discovered the fault-karst carbonate reservoirs, which are formed by large-scale tectonic fault activities and multiple-stage karstification. Four kinds of mediums coexist in including large cave, vug, fracture matrix. The fractures interconnect with caves series to form vertical beads-on-string structure, is most common connection pattern reservoirs. To provide a well test me...