... Abstract In the onshore Nile Delta gas fields, the Upper Miocene Abu Madi clastic reservoir show significant challenges for effective gas production, development, and exploration. The Abu Madi Formation contain unconventional reservoirs, including thin-bedded intervals and low resistivity zones...

...Introduction Abstract Formation dielectric property that is highly affected by formation fluid saturation can be an additional physical parameter for geo-steering in low resistivity pay (LRP) formations. Unlike wireline dielectric tools, LWD propagation tools operate at much lower...

... Abstract Recent advances on the logging-while-drilling (LWD) electromagnetic (EM) propagation resistivity tools, especially designed for deep resistivity boundary detection and azimuthal reading, have enabled proactive drilling applications such as geosteering in many different environments...

... orientation of the antenna, and the resistivity of the top layer for offshore EMT system. Offshore Electromagnetic Telemetry System Abstract Electromagnetic telemetry (EMT) system uses a downhole source inserted near the drilling bit to send out real-time measurements via low frequency...

... Invert the triaxial induction data with a high resolution inversion such as the 1-D Pixel inversion, including a QC estimate as a flag. Flag intervals over which the high resistivity intervals are present and/or adversely impact the inverted outputs due to shoulder bed effect...

... intelligence silicate jansz-io field calibration resistivity rock type australia government sedimentary geology permeability reservoir characterization facies porosity classification nmr facies petrofacies nmr saturation interpretation Introduction NMR logs are routinely acquired...

... a relatively shallow depth of investigation, thus, cannot be used for fracture network mapping beyond the borehole. On the contrary, azimuthal resistivity bed boundary mappers (BBMs) provide a means of identifying resistivity contrast of up to 30 feet around the wellbore, enabling the detection of water zones...

.... Automating log interpretation is a complex task, but solvable given a known environment. As an engineering problem it must be split up into multiple smaller tasks that can be independently solved and when combined, solve the greater task. Logging while drilling (LWD) deep azimuthal resistivity data is run...

... inversion algorithm, it is vital to have confidence in the inversion results. One dimensional inversions are represented as a canvas displaying changes in resistivity above and below the wellbore ( Figure 2 ). Multiple boundaries can be represented in this way if they are within the depth of investigation...

... resistivities (blocky curves) were derived from layer equivalencing of the resistivities logs on the right. Also, the survey plan is superimposed on the model depicting transmitter (yellow lines) and receiver (dots) locations. Figure 1 Model of the reservoir fluid saturated with CO 2 (top left...

... Abstract Logging-while-drilling (LWD) ultra-deep resistivity technology can explore the reservoir on a similar scale to seismic, so interpreted resistivity models can be combined with seismic sections to enable oil field operators to delineate pay zones better, improve reservoir understanding...

... and recorded data. All inversion results show uncertainty in the exact position of formation/fluid boundaries and inverted resistivity values. Understanding this uncertainty and deploying multiple inversions to mitigate it is essential for attaining high confidence in the quality of results. Multi-antenna...

... pushes the company's need for an alternative method that can increase oil production through subsurface evaluation in West Benakat Field to find the upside potential besides Talang Akar. One of the best alternative ways focused on the low resistivity pay zone from Gumai Formation (GUF) and Air Benakat...

... to compute the diffusional tortuosity. To measure electrical tortuosity, the samples were resaturated with 2.5% KCl brine prior to immersion into 6% KCl brine. The measurements of the samples’ resistivities as function of time after the immersion into the 6% KCl brine were used to compute ionic diffusion...

... log and used in the rock physics model established. On the other hand, the ANN model was developed and tested using well log inputs such as porosity, gamma ray, and resistivity logs. Results showed that the accuracy of the machine learning model outperforms that of the rock physics model...

... to be calculated by Archie's equation. The porosity of the tight carbonate of Qixia formation is usually lower than 5%, and the low porosity has raised issues in the petrophysical analysis of the water saturation ( Zhao et al. 2017 ; Li et al. 2019 ). Besides, induction resistivities can be limited in an oil...

... ranging from 60 to 10615mD. Its hydrocarbon type is heavy oil with an in-situ viscosity between 50-200cp ( Shi., 2018 ). Among GuanTao formation, L62 sublayer develops a large scale of low resistivity pay as result of a higher content of illite and montmorillonite ( Shi., 2020 OTC). It has been entered...

... Abstract The purpose of this paper is to present the equations about intrinsic formation factor (F) developed from a series of experimental data that will provide a method to recognize both the additional conductivity and resistivity of the rocks. In the experiment, 14 pieces of core plugs...

..., a reliable source for fracture length data would greatly reduce the high uncertainties associated with fractured reservoir characterization. In this study, we present a method that categorizes fracture length using laterolog-type resistivity and electrical borehole image logs, based on the different...

... university northern cyprus campus schlumberger sample solution tracer test analysis concentration application resistivity artificial intelligence tracer analysis system october 2020 petroleum engineer For the concentration of the red dye above 100ppm, a linear trend is observed in the graph...