海上超长水平裸眼井充填防砂工艺研究与应用  

Research and application of filling sand control technology for offshore ultra long horizontal open hole wells

作　　者：谭家文 王海彪 李明峰 马宇奔 包成龙 TAN Jiawen;WANG Haibiao;LI Mingfeng;MA Yuben;BAO Chenglong(China Oilfield Services Limited,Tianjin 300459,China)

机构地区：[1]中海油田服务股份有限公司,天津300459

出　　处：《石油化工应用》2024年第8期49-52,共4页Petrochemical Industry Application

摘　　要：海上油田受平台布置及空间的限制,水平井开发越发受到重视,其中超长水平裸眼井(水平长度≥800.0 m)由于其储层利用率高、泄流面积大、单井投入产出比高等优点,成为海上油田高效开发的有效途径之一。然而对于有防砂完井需求的井次,由于水平段长砾石充填往往面临井壁易垮塌、漏失风险大、易起砂桥等风险,充填防砂效果难以保证。本文以南海西部D油田充填防砂为例,开展地层漏失、充填介质、施工摩阻等因素对砾石充填防砂的影响,同步对充填介质及关键工艺进行优化、改进。优化后的工艺降低超长水平裸眼井作业施工风险,矿场试验平均充填效率超107.0%,防砂效果可靠,具有较好的推广应用价值。Due to the limitations of platform layout and space,the development of horizontal wells in offshore oilfields has become increasingly important.Among them,ultra long horizontal open hole wells(with a horizontal length of≥800.0 m)have become one of the effective ways for efficient development of offshore oilfields due to their high reservoir utilization rate,large drainage area,and high input-output ratio of single wells.However,for wells with sand control completion requirements,due to the risk of wellbore collapse,high risk of leakage,and easy sand bridge formation caused by long gravel filling in the horizontal section,it is difficult to ensure the sand control effect of the filling.This article takes the D oilfield in west South China Sea filling sand control as an example to investigate the impact of factors such as formation leakage,filling medium,and construction friction on gravel filling sand control.Simultaneously,the filling medium and key processes are optimized and improved.The optimized process reduces the construction risk of ultra long horizontal open hole operations,and the average filling efficiency in field tests exceeds 107.0%.The sand control effect is reliable and has good promotion and application value.

关 键 词：长水平井 裸眼 充填介质 防砂工艺 

分 类 号：TE257.9[石油与天然气工程—油气井工程]