... sandstone directional drilling lwd china government well planning well logging log analysis reservoir borehole oil column horizontal well drilling measurement well placement upstream oil & gas asia government anticollision risk logging while drilling drilling data acquisition udar...

... properties, the productivity can be estimated which in turns provides indication of production potential and guidance of future field development in the W block. LWD TOOL DESCRIPTION As shown in Figure 1, the logging-while-drilling (LWD) triple combo tool contains integrated technology which combines...

... and tracing the Figure 1 Distribution of tectonic units of the Jimusar Sag multiple sublayers within the low-sweet-spots, the Ultra- (JS), Junggar Basin (Hu et al., 2016). (a) Regional High-Resolution Image LWD technology is applied. In the case of low-sweet-spots, it can not only help adjust the -1- The 24th...

... the complex subsurface conditions. Reservoir Characterization real time system drilling data acquisition LWD well logging Upstream Oil & Gas log analysis drilling operation seismic data drilling measurement logging while drilling modeling Thickness trajectory information reservoir...

... which can be compatible with all other LWD (logging while drilling) tool. When taking the pressure measurement, the setting piston pushes the whole tool to contact the borehole wall and creates a fully sealing volume between tool and formation pores. Then the probe draws the fluid to create the pressure...

... was conducted at the active hydrothermal field in the Iheya-North Knoll and Noho in Okinawa trough Japan by D/V Chikyu in Feb-Mar 2016. This expedition drilled hydrothermal fields recently discovered in the Iheya Small Ridge (Noho site: as reported in the JOGMEC news release on December 4, 2014) using LWD...

... Abstract This paper discusses well integrity evaluation using LWD sonic monopole data. The first part of the paper explains the methodology which enables full range cement bond index determination i.e. 0 to 1; a hybrid method which uses both amplitude and attenuation through a receiver array...

.... To achieve successful survey and to protect LWD tools, pre-survey dynamic temperature modeling was carried out, continuous circulation system "Non Stop Driller", which makes constant drilling fluid circulation even during pipe connection, was used, LWD tools were upgraded up to 175degC, was used...

.... Borehole (in)stability is influenced by rock strength, structural properties, and the interaction with far and near field principal stresses. During drilling, the borehole conditions also impact borehole integrity. Factors that we can measure in the borehole during with logging while drilling (LWD...

... Abstract There has been a growing interest in measuring the cement bond quality quantitatively with LWD sonic tools. Recent studies have shown that quantitative cement evaluation with an LWD tool is feasible up to a certain bond index depending on conditions. In this paper we present several...

... high porosity and water saturation of minimum 40%. Azimuthal density images have always been the approach for real time formation evaluation and steering. However, for this project, the operator has selected the high resolution LWD resistivity images due to their closer position to the bit, as well...

... by a JFES program committee following review of an abstract submitted by the author(s). ABSTRACT This paper illustrates a simple methodology for combining information obtained from certain LWD measurements, and prior information about reservoir context, to estimate the productivity of the well during...

... drilling (MWD) and logging while drilling (LWD) were conducted at sites C0019B and C0019C 220 km offshore from Miyagi Prefecture from April 1 to May 24. This expedition was conducted in the framework of the Japan Trench Fast Drilling Project (JFAST) under the Integrated Ocean Drilling Program (IODP...