CAJ | 학술논문

针对胜利油田水平井均衡供液完井技术不完善，且面临单井产量低、投产层系复杂等诸多问题，建立了一套均衡供液完井技术“静态控流参数”设计方法，依次分为生产段分段、各投产井段配产、各投产井段节流压降设计和控流参数优化设计4个步骤。生产段分段以减小投产层系非均质性和封隔物性差异大的相邻层段为目的；底水和边水油藏分别使用“见水时间一致”和“均衡供液”的原则进行各投产井段配产；制定适当的跟端流压，优化各投产井段所需节流压降；适当选择控流井段盲筛比，保证控流筛管发挥良好的控流特性。实例计算结果表明，使用“静态控流参数”方法设计出的均衡供液完井管柱的控流效果明显。该设计方法简便实用，为均衡供液完井技术在胜利油田的推广应用提供理论支持。
침대성리유전수평정균형공액완정기술불완선，차면림단정산량저、투산층계복잡등제다문제，건립료일투균형공액완정기술“정태공류삼수”설계방법，의차분위생산단분단、각투산정단배산、각투산정단절류압강설계화공류삼수우화설계4개보취。생산단분단이감소투산층계비균질성화봉격물성차이대적상린층단위목적；저수화변수유장분별사용“견수시간일치”화“균형공액”적원칙진행각투산정단배산；제정괄당적근단류압，우화각투산정단소수절류압강；괄당선택공류정단맹사비，보증공류사관발휘량호적공류특성。실례계산결과표명，사용“정태공류삼수”방법설계출적균형공액완정관주적공류효과명현。해설계방법간편실용，위균형공액완정기술재성리유전적추엄응용제공이론지지。
In view with imperfect equilibrium lfuid supply completion technology for horizontal wells in Shengli Oilifeld as well as the problems such as low single well production, complex producing zones, a set of design methods were established for‘static lfow control parameters’ of equilibrium lfuid supply completion technology, which is divided into four steps in a proper order:division of producing sections, production allocation of each producing section, choke and pressure drop design for each producing section and design optimization of lfow control parameters. Division of producing section is for the purpose of reducing the adjoining zones with great difference in heterogeneity and isolating physical properties of the producing zones; the bottom-water and edge-water reservoirs respectively use the principles of‘consistent water breakthrough time’ and‘equilibrium lfuid supply’ for production allocation of each producing wells;the lfow pressure at heel should be properly established to optimize the choke pressure drop required by each producing well section;the blind screen ratio should be properly selected for lfow control section to ensure that the lfow control screen can give full play of its lfow control performance. The result of example calculation shows that the completion string with equilibrium lfuid supply designed by‘static lfow control parameter’ method has remarkable lfow control effect. This design method is easy and practical, and provides theoretical support for the promotion of equilibrium lfuid supply completion technology in Shengli Oilifeld.