CAJ | 학술논문

辽河油田A区块储层的沉积发育状况呈现复合韵律，油层中间层段渗透率高，根据储层存在高渗透层的实际情况，为有效利用水平井注蒸汽挖潜剩余油，需要对水平井的位置、水平段轨迹层位、水平段长度及注气参数进行优化。应用Petrel建模软件和CMG油藏数值模拟软件，建立了研究区的精细地质模型，在历史拟合基础上对水平井的位置、水平段长度、水平段距高渗层距离以及注气参数进行优化。研究结果表明，水平井注蒸汽通过蒸汽上覆作用，蒸汽到达高渗透层后，在高渗透层快速水平突进，并以较大接触面积向上继续加热油层，最终可以实现油层纵向上的均匀波及。数值模拟结果显示，优化后的水平井能更有效地开发油层中的剩余油。
료하유전A구괴저층적침적발육상황정현복합운률，유층중간층단삼투솔고，근거저층존재고삼투층적실제정황，위유효이용수평정주증기알잠잉여유，수요대수평정적위치、수평단궤적층위、수평단장도급주기삼수진행우화。응용Petrel건모연건화CMG유장수치모의연건，건립료연구구적정세지질모형，재역사의합기출상대수평정적위치、수평단장도、수평단거고삼층거리이급주기삼수진행우화。연구결과표명，수평정주증기통과증기상복작용，증기도체고삼투층후，재고삼투층쾌속수평돌진，병이교대접촉면적향상계속가열유층，최종가이실현유층종향상적균균파급。수치모의결과현시，우화후적수평정능경유효지개발유층중적잉여유。
Development of the reservoir in A block of Liaohe oilfield present compound rhythm reservoirs ,high permeability layer among the reservoir ,according to the real situation that high permeability layer exist ,for the efficient utilization of producing remaining oil by horizontal well ,that need to optimize locations ,trajectory ,length of horizontal well and vapor injection parameters .A fine geological model which reflects the characteristics of the reservoir in studied area was constructed with Petrel and CMG software .Optimize locations ,trajectory ,length of horizontal well and vapor injection parameters upon the history matching .The research result shows that steam override ,after reaching high permeability layer ,the steam makes fast breakthrough in high permeability layer ,keeping on upward heating the reservoirs with large contact area .Finally the reservoirs can be uniformly swept in the vertical direction . The numerical simulation accurately predicts the optimized horizontal well can effective exploit the residual oil .