海上薄气层油藏开采方案设计  

Design on Exploitation Scheme of Offshore Thin Gas Reservoirs

作　　者：李方涛 李展 杨涛 LI Fang-tao;LI Zhan;YANG Tao(Nanpu Operation Area of Jidong Oilflied Company, Hebei Tangshan 063000, China;Technology Research Institute of No. 1 Oil Production Plant, Henan Oilfield Company, Henan Nanyang 474780, China;Onshore Operation Area,Jidong Oilflied Company, Hebei Tangshan 063000, China)

机构地区：[1]冀东油田公司南堡作业区,河北唐山063000 [2]河南油田采油一厂工艺研究所,河南南阳474780 [3]冀东油田公司陆上作业区安全环保科,河北唐山063000

出　　处：《当代化工》2018年第5期1034-1037,共4页Contemporary Chemical Industry

摘　　要：海上B油田上部存在薄的气层,海上作业成本高,限制了钻井的数量,因此采用3井对油气层同时进行开采。油管采油、环空采气的开采方式没有充分利用气层的能量。受气举采油的启发,利用井气来实现"自我气举",充分利用了上部凝析气层的能量。井气气举到地层压力为22 MPa时,气举采油达不到配产,此时采用井气气举+气举—电潜泵组合举升方案来接替采油。该方案较自喷+电潜泵接替举升(油管采油,环空采气)方案可节省功率49.45~58.42 k W,节能效果明显。井气气举+气举—电潜泵组合举升方案设计对海上油田高效、安全、经济的开发具有指导意义。The B offshore oilfield has a thin condensate gas layer. The high operation cost limits the number of well. Therefore, three wells are applied to exploit the gas layer and oil layer simultaneously. If the oil is exploited by tubing and the gas is exploited by the annulus wellbore, the energy of the gas layer will be wasteful. Inspired by gas lift, the design uses the condensate gas to assist to lift the oil. When the formation pressure drops to 22 MPa,the design cannot reach the production. So the gas lift should be replaced by ESP-GL to exploit the reservoir. This program can save power 49.45-58.42 k W than ESP. The energy saving effect is obvious. The design of ESP-GL can guide to develop the offshore oil field efficiently, safely and economically.

关 键 词：薄气层油藏 环空采气 节点分析 气举 组合举升 

分 类 号：TE323[石油与天然气工程—油气田开发工程]