摘要
为了经济有效开发浅层（300~600 m）低渗透、低丰度油藏,提高油藏采收率,陕西延长石油（集团）有限责任公司尝试利用旧井场在老井区部署加密浅层水平井进行调整开发,开展了在复杂工程、地质等多种不利限制条件下具有延长油田特色的浅层高密井网水平井防碰绕障技术研究。通过优化井眼轨迹,精细防碰扫描以及配套的现场工程技术措施,有效控制井眼方位,进行主动防碰绕障。现场应用结果表明,在该技术指导下浅层水平井均成功穿越或避开老井网,保证了钻井作业的安全进行,为油田浅层难动用油藏中后期开发提供了一条新的途径。
In order to develop the shallow（ TVD 300 ~ 600m） low-permeability and low-abundance oil reservoirs and enhance oil recovery,Yanchang Petroleum Group tried to deploy shallow infill horizontal wells for adjustment development in the old well site of oil well area,the study was carried out on anti-crossing technology with characteristics of Yanchang oilfield under the adverse limitation of complex engineering and geological conditions. By wellbore trajectory optimization,precision anti-crossing scanning and the supporting technical measures,the well azimuth can be effectively controlled with active anti-crossing. The field application shows that by this technology,crossing is avoided for shallow horizontal wells and old well net to keep the drilling operation safety,which provides a new way to the development of difficult-to-produce shallow oil reservoir in middle-late stages.
出处
《探矿工程（岩土钻掘工程）》
2016年第1期40-43,共4页
Exploration Engineering:Rock & Soil Drilling and Tunneling
关键词
低渗透油藏
高密井网
浅层水平井
防碰绕障
延长油田
low-permeability oil reservoir
infill wells
shallow horizontal well
anti-crossing
Yanchang oilfield
