斜井资料在三维地震勘探区的应用

INCLINED HOLE DATA APPLIED TO 3D SEISMIC INTERPRETATION

斜井穿过油层层数多,经济效益好,在当今油气勘探中被广泛采用.如何利用斜井资料进行储量计算,在地震勘探中进行“桥式对比”.储层标定及横向预测,是目前急待解决的问题.我们在地震解释工作站上开发了一套斜井资料处理的软件包,可将斜井合成地震记录及测井曲线沿斜井轨迹显示到地震剖面上,并可将地震剖面作垂直投影,递推声阻抗剖面,使得适合于直井处理的所有技术和手段均适用于斜井,为斜井资料的应用提供了较为完善的方法.

Inclined hole drilling pcnctrats many reservoir beds, which gives rise to significcnt economic benefit. This the reason why this technique has now found wide application in exploration for hydro carbons. There arc however a series of problems expected to be solved, such as the reserve estimation using inclined hole data, the 'Bridge-like' Corrclaction of the down well data with seismic data, the calibration for reservoir beds and lateral Oil / gas prediction using indincd hole data and so on. On the workstation for seismic interpretation, we have developed a software package for inclined hole data processing, which is capable of coincidcntly displaying the inclined hole synthetic scismogram and the log curves along the trajectory of the inclined hole on seismic sections. Moreover, the capability of the programming package in vertical projcc-jon for seismic sections, and the continuation for acoastic impcndance sections makes all the processing methods suitable for inclined hole data as well as vertical hole data.