CAJ | 학술논문

水平井分段压裂是开发低渗难动用储量的重要技术手段，该技术在储集层横向分布稳定，纵向有一定厚度且连续性好的低渗气藏中应用已较为成熟，但在强非均质性气藏中的应用仍有待研究。为此，针对苏53区块低渗致密、低丰度、横向砂体不连续和纵向砂泥岩薄互层显著等特点，通过气藏数值模拟和三维裂缝模拟，对水平井段长度、水平井分压级数、裂缝参数和关键施工参数等进行了优化研究，得到了苏53区块水平井分段压裂优化参数组合。该研究对提高苏里格气田水平井开发效果具有指导意义。
수평정분단압렬시개발저삼난동용저량적중요기술수단，해기술재저집층횡향분포은정，종향유일정후도차련속성호적저삼기장중응용이교위성숙，단재강비균질성기장중적응용잉유대연구。위차，침대소53구괴저삼치밀、저봉도、횡향사체불련속화종향사니암박호층현저등특점，통과기장수치모의화삼유렬봉모의，대수평정단장도、수평정분압급수、렬봉삼수화관건시공삼수등진행료우화연구，득도료소53구괴수평정분단압렬우화삼수조합。해연구대제고소리격기전수평정개발효과구유지도의의。
The horizontal well staged fracturing is an important technological means for developing low permeable and hard -to -recover reserves.The technology has been used well in low permeable gas -reservoirs with steady lateral distri-bution and certain thickness and good continuity in vertical direction.However,it remains to be studied in strong heteroge-neous gas -reservoirs.In view of characteristics of Su 53 block,such as low permeability and tight,low abundance,lateral sandbody discontinuity,obvious thin sand -shale interbeds in vertical direction,and so on,it was optimally studied on hori-zontal section length,number of fractures and key parameters of fracturing.The study results are significant for improving the level of Sulige Gasfield development.