... was conducted as a part of the International Continental scientific Drilling Program (ICDP) from 2017 to 2018 and several boreholes including four across the crust-mantle transition zone were drilled in the program. A full suite of slim and conventional wireline log data included the high-resolution resistivity...

...; Xie et al. 2021; S. Bey. 2015). During exploration and development stage, it is found that the development of corrosion fractures and caves in Dengying Formation carbonate rock reservoir is often accompanied by resistivity decline and separation, but on the contrary, resistivity decline and separation...

... resistivity water-saturated layers and low-resistivity hydrocarbon-bearing reservoirs. It was a great challenge to identify such type of hydrocarbon-bearing potential reservoirs by using geophysical well logging data based on common methods. A large number of surface water invasion hydrocarbon-bearing...

... hole logs and well test data, we found that the resistivity log was significantly affected by the rock framework, apart from the fluid type. The resistivity of massive framework like alveolate vug facies is apparently higher than that of interbedded framework like stratiform vug facies. The previous...

... is mainly siltstone and fine sandstone, characterized by low or medium resistivity and high gamma on the logging curve. The cap and base rock are dolomite with high resistivity. The target layer is 3-5m thick with high structure uncertainty. However, different from the up-sweet-spots, the low-sweet-spots...

... and determine the gas saturation in a complex formation sequences, with low porosity and low resistivity shaly sands, coals and tight carbonates; three ways to interpret logs were illustrated: quick look of FNXS overlaid with other logs, cross-plotting in a chart and quantitative gas volume calculation...

...-based mud (WBM) systems, the voids encountered during drilling are filled with conductive fluid; consequently, they display as darker pixels on the high-resolution microresistivity image. For the workflow, a frequency histogram of the button resistivity values was constructed corresponding to the full...

... correction Upstream Oil & Gas water saturation porosity Sxo resistivity investigation depth gas correction gas effect density porosity GAS EFFECT REVISITED Yuhei Aihara and Hideo Komatsu INPEX CORPORATION This paper was selected for presentation by a JFES program committee following review...

... ABSTRACT A novel integrated workflow using Nuclear Magnetic Resonance (NMR) data is developed and is presented in this paper to evaluate laminated low resistivity low contrast (LRLC) clastic formations in offshore deepwater wells. Traditional interpretation methods on thin laminations...

... ABSTRACT During field testing of a logging-while-drilling (LWD) laterolog resistivity and imaging tool, formation resistivity differences were observed between the new laterolog and standard propagation resistivity. This paper compares the measurement acquired in the same borehole using...

... bearing zone, followed by coring and sampling in selected locations. This paper discusses the petrophysical evaluation of gas hydrate using extensive LWD data acquired in Shenhu area incorporating high-resolution image data. This includes utilizing resistivity spectrum analysis to quantify formation...

...The 23rd Formation Evaluation Symposium of Japan, October 11-12, 2017 -1- Improved Interpretation of Laminated Formations in Mature Fields Using Calculated Rh and Rv Logs From Conventional Resistivity Measurements in Multiple Wells. Rick Aldred1, W. A. Manan2 and Edwin Wong3 1. Consultant...

...-generation Technology for Ocean Resources Exploration, of the Cross-ministerial Strategic Innovation Promotion Program (SIP). LWD was conducted at 3 sites in Iheya-North Knoll and at 4 site in Noho. The gamma ray, various resistivities, and high resolution resistivity borehole image allows us to understand...

... for determining the TOC content than the interval transit time and the resistivity. Introduction Not only does the TOC content affect both the shale gas saturation and the quality of shale gas reservoirs, but also is the key to assess the commercial value of the shale gas reservoirs (Jenkins and Boyer II, 2008...

... Abstract Electrical resistivity data provided by borehole logging are valuable for assessing the properties of reservoir rock. However, it is generally recognized that the resistivity data can be extremely sensitive to various factors such as porosity, clay mineral content, ionic concentration...

... Abstract This report addresses a class of interpretation problems where formation water salinity is highly variable. In such environments, saturation equations that rely on a good knowledge of the water salinity, such as resistivity-based equations (Archie) or thermal neutron capture cross...

... and resistivity, annular temperature and annular pressure mounted on arcVISION and TeleScope throw a light to active hydrothermal deposits first ever. The maximum annular temperate anomaly at 84degC was observed. The combination of natural gamma-ray and resistivity logs, and time series of annular temperature...

... appreciate the production impact of faulting, fracturing and secondary porosity. In lieu of these objectives a new logging-while-drilling (LWD) tool has been deployed to acquire high resolution borehole images and multiple-depth of investigation (MDOI) laterolog resistivities. The use of a LWD tool...

... reservoir fluid compartment sample integrity wireline-conveyed in-situ fluid analysis coefficient resistivity fluid analysis The 20th Formation Evaluation Symposium of Japan, October 1 - 2, 2014 Advances in Wireline-Conveyed In-Situ Fluid Analysis Andhi Marjono, Yoko Morita, Kamal Kader, Younes...

... without any logging data acquired. Horizontal evaluation was done based on mud logging data only. The second challenge is to understand log responses in different environment and select the best measurement for fluid typing. Fig. 1 shows an example where the same resistivity logging tool responded...