The source of cement in oilfields is critical to the prediction of the distribution of cements in the reservoirs and also prediction of reservoir quality. The source of mineral forming cements has been determined for the Storrington oolitic carbonate reservoir (Middle Jurassic Great Oolite Formation, Weald Basin, onshore UK) using a combination of petrography, electron microscopy, fluid inclusi...

Integrated modelling, well correlation and petrophysical analysis were performed to characterize the reservoirs for optimum hydrocarbon using 3-D seismic reflection data suites of logs from Ataga 5, 7, 10 11 wells respectively in field, shallow offshore, Niger Delta Basin, Nigeria. The study revealed presence two viable bearing reservoirs, AT1 AT2 average values porosity, permeability, water sa...

Substantial uncertainty is inherent in reservoir inflow forecasting, which exerts a potential negative impact on risk. However, the risk propagation from forecast (IFU) to operations remains elusive. Thus, new integrated assessment framework was developed this study characterize coupling with flood and electricity curtailment risks that propagate IFU operations. First, incorporate IFU, an impro...

The need for inflow discharge forecasts is the first step in process of integrating water management. To overcome this problem, a forecasting analysis system needed. This paper adopts seasonal autoregressive integrated moving average model, SARIMA. method was chosen and then applied to data Wonorejo Reservoir obtain best model. Determination model through performance measures using minimum Mean...

The present study examined the effect of the geometric parameters of the Rockfill dams on the 2D static analysis of slope stability. In this regard, several numerical models analyzed for eight heights, three slopes of upstream and downstream, three vertical and skewed core thicknesses and four different impounding time stages namely, "End of Construction", "Full Reservoir", "Half Full Reservoir...

Many lacustrine chronology records suffer from radiocarbon reservoir effects. A continuous, accurate varve chronology, in conjunction with accelerator mass spectrometry (AMS) 14C dating, was used to determine the age of lacustrine sediment and to quantify the past 14C reservoir effect in Sugan Lake (China). Reservoir age varied from 4340 to 2590 yr due to 14C-depleted water in the late Holocene...

Determination of the optimal normal water level of reservoirs (RNWL) was investigated, incorporating environmental ecology as a primary consideration. RNWL constitutes a relatively significant eigenvalue of any water conservancy project. In the present study, a four-step method based on a mathematical programming model and suitable for RNWL decision making was developed and applied to the water...