Title: Development of around-bit electromagnetic wave resistivity instrument
Abstract: The ratio of drilling thin sandstone is low because the measurement point of conventional electromagnetic wave resistivity instrument to bit's distance is far and the bit is outside the reserves which is not found in time.The study of electromagnetic wave logging technology near-bit is carried out,which includes the innovative design of instrument casing construction and the design of miniaturization and low exploit electro circuit.The instrument was tested in oilfields,the test result indicated that the instrument design is rational,the operation is dependable,the measurement data is accurate,and the precision is high.Compared with conventional electromagnetic wave resistivity instrument,the electromagnetic wave resistivity instrument near-bit is not only affected lightly by the mud invading and the resolving ratio of logging curve is higher,but also the geosteering drilling for the horizontal well was more beneficial.It provides the reliable technology guaranty for the exploitation of the horizontal wells,especially the thin sandstone horizontal wells.
Publication Year: 2010
Publication Date: 2010-01-01
Language: en
Type: article
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