Unknown subsurface leaking water sources and possible seepage from a sewage tank in garden at Al-Khawarizmi engineering college, University of Baghdad, were detected this study. The 2D electrical resistivity imaging. ERI survey is carried out along two lines, 60m 50m long, with an electrode spacing 1 m, forming cross using the Wenner-Schlumberger array configuration. Line 60m, while line 2 50m....

electrode arrays allows for the interpretation of the twodimensional distribution of electrical conductivity in the The analytic element method is used to investigate the spatial subsurface. The electrical conductivity distribution can sensitivity of different electrical resistivity tomography (ERT) arrays. By defining the sensitivity of an array to a subsurface location we then be related to t...

In its efforts to provide automated meter-reading services to the utility industry, Schlumberger faces the problem of deploying receivers efficiently. In a geographic region, the problem is to install the minimum number of receivers on existing utility poles so that all wireless meters in that region can transmit their readings to at least one. Schlumberger first encountered this large-scale pr...

We want to create interactive surface design systems which provide intuitive interfaces to parametric surface representations. In this paper, we show how the technique of Differential Manipulation can be used in constructing such interfaces. It allows surface manipulation issues to be treated separately from surface representation issues. Arbitrary differentiable functions of representation par...

Schlumberger RPS successfully applies software measurement to support their software development projects. It is proposed that the success of their measurement practices is mainly based on the organization of the interpretation process. This interpretation of the measurement data by the project team members is performed in so-called ‘feedback sessions’. Many researchers identify the feedback pr...

To sustain its competitive position as the leader in providing information solutions to the oil and gas industry, Schlumberger transitioned to a cutting-edge product-platform software architecture by embedding a leading geological modeling software product—Petrel—within Ocean, its collaborative open software platform. The purpose was to open up Petrel through the layered Ocean platform to broad...

Shear and Compressional Wave Velocities along with other Petrophysical Logs, are considered as upmost important data for Hydrocarbon reservoirs characterization. Shear Wave Velocity (Vs) in Well Logging is commonly measured by some sort of Dipole Logging Tools, which are able to acquire Shear Waves as well as Compressional Waves such as Sonic Scanner, DSI (Dipole Shear Sonic imager) by Schlumbe...

We present a general formulation for solving frequency or time domain electromagnetic data using an all-at-once approach. In this ∗Currently at EMI Schlumberger, Richmond, California, USA 94804.

The Hungarian water management plan has lately identified 185 groundwater bodies based on the concepts given by European Water Framework Directive. Achieving and maintaining good quantitative chemical status of these is primary importance. It demonstrated how innovative hydrogeophysical methods can be applied successfully to assess or other international bodies. By applying geoelectric methods,...

We examined the uncertainty of two-dimensional (2D) resistivity method using conceptual cavity models. The experimental study was conducted to validate numerical model results. Spatial resolution and sensitivity perturbations were also assessed checkerboard tests. Conceptual models simulated generate synthetic data for dipole-dipole (DD), pole-dipole (PD), Wenner–Schlumberger (WS), pole-pole (P...