【摘要】 TC419井是目前国内水平位移最长的超深侧钻短半径水平井。在地质条件复杂、中靶难度大的情况下,通过优选轨迹设计、侧钻方式、测斜方式、增斜工具及优质钻井液,钻井过程中实现了安全、准确的中靶,缩短了钻井周期、降低了成本。它为塔河油田扩大侧钻短半径水平井覆盖范围、降低开发成本打下了良好的基础。更多还原

【Abstract】 The TC419 well is the longest horizontal shifting and super deep short-radius sidertracking horizontal well at home now?In the case of complicated geologic condition and the difficulty for hitting the target,via the ways of selecting the finest path design,sidetracking pattern,inclinometer,the tool of increasing slanting and high-quality drilling mud, safe and accurate target hitting is realized in the course of drilling so as to shorten drilling period and reduce the cost which has build the good foundation for Tahe oil field expansion of the short-radius sidertracking horizontal well cover scope and the reduced development cost.更多还原