... effectiveness. upstream oil & gas casing design floatation sub directional drilling rotation drilling operation setting casing friction rotation effectiveness torque application operator configuration casing and cementing centralizer efficiency prediction rotate borehole scenario...

... Abstract Open hole wireline logging, due to its lower overpull capacity relative to logging-while-drilling, is subject to increased stuck tool risk and can lead to costly fishing operations, lost-in-hole charges, and the need to sidetrack the borehole. The risk increases in higher overbalance...

... network abdulraheem ann model cylindrical sample dataset borehole borehole diameter sensitivity analysis correlation coefficient complex reservoir upstream oil & gas diameter rock sample fracture permeability Introduction Unconventional tight reservoirs are usually characterized...

... issues became apparent during the course of drilling the well, the main factor being consistently poor borehole condition. An added factor potentially exacerbating the progressively worsening borehole conditions was attributed to the significant tectonic activity in the area. To address and identify...

..., with an area of 50 Sq.km was first identified in 1966 and it is part of the regional N-S extending structural. The multi-discipline approach applied in this study required the integration of a suite of open-hole data over a variety of length scales. Combination of the Borehole Acoustic Reflection Imaging...

... the project, geological, hydrodynamic and geomechanical models of the reservoir were built, the most efficient borehole parameters and trajectories were defined, and the optimal hydraulic frac design, number of stages and parameters were selected. The article describes specifics of the work carried out when...

... Abstract In response to the borehole instability problems such as wellbore collapse and sand production, which often occur in drilling and completion, a thermosensitive screen technology that can expand spontaneously at a specific temperature has been developed. The radial expansion...

... of the mandrel. An exterior pressure sleeve to protect the detector from the borehole environment completes the sleeve-over-mandrel configuration. The detector assembly consists of a 1.51- × 8-in. NaI scintillation crystal coupled to a ruggedized PMT. A mounting bracket secures the detector assembly within...

... interpretation was conducted at the time. Recently, advanced analysis including high resolution log enhancement, NMR 2D porosity and saturation analysis, acoustic azimuthal anisotropy, near wellbore imaging, fracture interpretation, and borehole image interpretation were performed on the log data, and new...

... might pay a vital role in understanding the extent and composition of water-ice on the Moon, leading to efficient colonization of the solar system. Artificial Intelligence strength US government data acquisition system drilling data borehole machine learning drilling fluids and materials...

... to within 5 ft of the physical edge of the EAP-filled fracture anomaly. We are currently using results from our ongoing geophysical surveys to refine and verify the efficiency of forward and inverse EM modeling codes for open-borehole and through steel casing scenarios. This paper describes the ground-truth...

... Intelligence wireline drilling US government constraint Upstream Oil & Gas landing site target depth particle diameter Highland composition drilling operation Cambridge University Press borehole mineralogy Drilling activity society of petroleum engineers lander exploration Crawford...

... of the acquisition electronics. The standard environmental corrections for NGR tools correct for borehole effects (mud weight and composition, borehole size, and tool position in the borehole), so that the tool response to a given formation is independent of the borehole environment. In this paper, we present...

... if the tool is run in a 4.89-in. borehole filled with fresh water. Although all gamma-ray tools are supposed to provide the same results for such a well, in the real world there is no single one-size-fits-all concept. The measurements provided by tools characterized with the University of Houston (UH) GR pit...

... of a dual-exponential fit to cleanly separate the borehole decay from the formation decay. We will show that this approach works well, and can provide a certain advantage relative to the "moments method". Upstream Oil & Gas apparent formation sigma borehole environment neutron well logging...

... such as different borehole sizes and drilling mud types, are simulated. The reasons for the change of the standard spectra shape are analyzed. A model based on gamma ray attenuation is introduced to compensate for the effects of logging conditions on the changes of standard spectra. The simulation results show...

... operational solution is to set a plug and the fill the borehole with water. Although this technique helps to obtain the desired formation gas-liquid sensitivity, it incurs increased operational expenses, potential damage to fragile formations, reinvasion effects, etc. To overcome these challenges, a sleeve...

... ) ] Abstract The conductivity and density of fractures intersecting a borehole strongly influence well productivity, making fracture characterization an important aspect of reservoir management. A Stoneley-wave inversion process is presented to estimate borehole washout volume and fracture conductivity...

... of locating magnetic cement slurry that is placed behind a stainless steel casing. An electromagnetic coil was used to generate a magnetic field inside the borehole. It was found that when a current was passed through the electric coils, magnetic field lines passed through the stainless steel casing...

... analysis includes borehole acoustic processing and resistivity imaging. The borehole acoustic response is used to estimate not only formation mechanical properties but also log-derived stress profiles while borehole Imaging is used to select the microfrac points and to confirm the induced borehole fracture...