CAJ | 학술논문

根据水平井中泄油孔的产能预测方法，分析了油层厚度、油层各向异性、泄油孔在油层中的位置等因素对确定泄油孔长度和泄油孔个数的影响. 结果表明：随着泄油孔长度的增加，原油产量也增加，当孔长达到一定值后，钻井成本增加，而原油产量增加幅度降低；当泄油孔数达到一定值后，泄油孔长度较短的油井与较长油井的预测产量比值为一常数；最佳泄油孔的数量与泄油孔长度无关，泄油孔在油层中的位置对薄油层产能影响更大.
근거수평정중설유공적산능예측방법，분석료유층후도、유층각향이성、설유공재유층중적위치등인소대학정설유공장도화설유공개수적영향. 결과표명：수착설유공장도적증가，원유산량야증가，당공장체도일정치후，찬정성본증가，이원유산량증가폭도강저；당설유공수체도일정치후，설유공장도교단적유정여교장유정적예측산량비치위일상수；최가설유공적수량여설유공장도무관，설유공재유층중적위치대박유층산능영향경대.
According to the production prediction of horizontal well or drain holes, we have analyed the effect of the thick and anisotropy permeability of reservoir and the position of drain holes in reservoir to determine length and number of the drain holes. The results show that crude production rate is increased as more length of drain holes is drilled. While the length reaches a certain value, the production rate is reduced, but the cost to drill the holes is increased. The ratio of predicted production of shorter holes to that of longer holes is nearly constant, when drilled drain holes exceeds a certain a number. The drain hole number of a well that gives optimum production is about 4. The shorter drain holes are, the better the effect of hole number to well production. The position of drain holes in reservoir affects the production of thin oil-bear formation most.