In order to accelerate the expansion of steam chamber and to reduce the impact of interlayers during SAGD development for heterogeneous heavy oil reservoirs,a steam injection method with fishbone horizontal well is put forward.Taking Wellblock A of Fengcheng oilfield as an example,main factors influencing production effects of SAGD technology with fishbone steam-injection horizontal well are analyzed and branch shapes and key injection-production parameters are optimized by using numerical simulation technique.The study resuits show that horizontal and vertical displacements of branches are positively correlated with production effects of well groups,and the production effect of staggered branch distribution is better than those of symmetry and same-side branch distributions.When interlayers exist above fishbone steam-injection horizontal wells,the optimum production effect can be gained when the branches go across the interlayers.The actual application shows that both initial daily oil production and oil/steam ratio of the fishbone steam-injection horizontal wells are higher than those of horizontal wells without a branch under the same conditions.The production method has certain advantages and can be guidance for similar reservoir development.

新疆油田公司七东1区聚合物驱投产实验后，随着聚合物驱采油井见效和产出液含聚浓度的升高，抽油杆柱偏磨断脱日趋严重。针对这一难题，本文章通过管杆柱受力分析、杆柱优化调整以及防治措施研究，形成适用于聚驱采油井杆管防断脱配套技术，延长检泵周期，为新疆油田30万吨聚合物驱重大试验项目提供技术支持。

本文结合油田勘探开发现场工作实际，运用Visual Basic语言编制了快速检索、一键配汽、油藏解释等软件，解决了现场数据量大、配汽参数调整要求多，以及一线地质人员不懂专业软件无法进行油藏解释等难题，并极大地提高了工作效率。