旋转导向近钻头随钻伽马数据成像处理技术

在旋转导向钻井过程中需要根据井下实时获取的伽马成像图对钻头进行调整,但是钻井随钻测量数据的传输数量较少,单次所能传输的数据有限.为了获得连续的伽马值,使用三次样条插值和Akima插值两种方法分别对井周方向和深度方向的测量数据进行插值处理.使用LabVIEW软件对两种插值方法编程,绘制井深和井周方向上插值结果的曲线图和强...

Imaging processing technology of gamma data while drilling with rotary steering near bit

In the processing of rotary steering drilling, the bit needs to be adjusted according to the real-time gamma image acquired from the downhole, but the quantity of data transmission of measurement while drilling is small, and the data that can be transmitted in a single time is limited. In order to obtain continuous gamma data, cubic spline interpolation and Akima interpolation are used to interpolate the measured data in the perimeter direction and depth direction respectively. The two interpolation methods are programmed with LabVIEW software to draw the curve and intensity diagram of interpolation results in the direction of well depth and well circumference. The program is verified by a drilling data in Liaohe oilfield. The results show that the interpolated curve and strength diagram can accurately reflect the formation information, and can provide information support for drilling guidance and formation evaluation.