DOI: 10.11799/ce201804020
Directional drilling control technology of coalbed methane wells in Niuchang Block
DONG Hai-chao
ZHAO Yong-zhe
XU Kan-she
Abstract：As there is a certain distance between the inclinometer and the drill bit, which makes it impossible to measure the borehole parameters directly. In the construction process of directional well of coalbed gas, there is a situation in which the straight section of the straight-steady-state two dimensional directional well is diagonally tilted, which makes the deflection point have a deviation angle and azimuth angle. Based on the field drilling engineering, we analyze and summarize the function relationship between the tool face and the change of hole drift angle and azimuth angle. This makes it possible to predict the trajectory accurately. A set of directional well trajectory control technology is proposed and verified in the construction of multi-well in the area.
Keywords：Niuchang Blockdirectional drillingtrajectory predictioncontrol technology
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 75-78 )