2024年10月30日 · Huan-Ming Wen extracted fractal information from well logs such as acoustic time difference logging (AC), compensated neutron logging (CNL), DEN, and GR through box dimension, correlation...

2022年4月29日 · Geophysical well logs can characterize the seven kinds of parameters (lithology, reservoir quality, hydrocarbon bearing property, electronic well-log responses, source rock property, brittleness, and in situ stress magnitude and direction) and three kinds of properties (source rock property, reservoir property and engineering property), and ...

Acoustic logging includes those techniques that use a transducer to transmit an acoustic wave through the fluid in the well and surrounding elastic materials. Several different types of acoustic logs are used, based on the frequencies used, the way the …

2019年11月1日 · In this paper, we propose an alternative automatic method to identify lithology by integrating both well logs and sedimentary patterns. First, we obtain the probability of lithology by applying the artificial neural networks (ANN) to the well logs.

A well-log reconstruction method based on kernel ridge regression (KRR) is successfully used to predict the acoustic curve of wells (Fan and Deng, 2021). A least-squares support vector machine...

Sonic log is usually displayed in track 2 or 3 Units: sec/ft, sec/m; Mnemonics: DT, AC; Symbol: Dt--tu

2024年11月1日 · The presence of organic materials is distinct on well logs responses by lower density and sonic velocity, but higher resistivity, GR and hydrogen content compared with the rock matrix. The well logs sensitive for source rocks include GR, AC, CNL, DEN and RT. Also image logs will display bright bands due to high resistivity.

Seismic and well log data sets are combined to illustrate structural and reservoir characterization analysis. This chapter is divided into 3 major parts which are well log

The target of the well logs evaluation for gas-bearing shale is to form the well logging evaluation supporting tech-nology series with hydrocarbon generation capacity, storage capacity and production capacity. The well logging suite and the petrophysical parameters available for shale gas are shown as Table 1. The technical requirements in well ...

Well Log Interpretation INTRODUCTION This chapter provides a general introduction to well logging principles and methods that will be used throughout the book. Succeeding chapters (2 through 6) introduce the reader to specific log types. The text discusses how different log types measure various properties in the wellbore and surrounding ...