郑科平1井疏松砂岩超稠油储层防砂工艺技术  

Sand Control Techniques for Loose Sand Ultra-Heavy Oil Reservoir in Zhengkeping 1 Well

作　　者：梅明霞[1] 周承诗[1] 曲杰[1] 孙秀钊[1] 张寅杰[2] 

机构地区：[1]胜利油田有限公司采油工艺研究院,山东东营257000 [2]胜利油田有限公司孤东采油厂,山东东营257000

出　　处：《石油钻探技术》2006年第1期69-70,共2页Petroleum Drilling Techniques

摘　　要：郑科平1井沙3段高孔、高渗超稠油藏属于胶结极为疏松的地层,在试油过程中极易出砂,不宜采用裸眼完井防砂方式,因而选择套管射孔滤砂管防砂完井。该井水平段采用φ244．5 mm套管完井,射孔后,下入整体式金属毡滤砂管、扶正器、封隔器构成的防砂管柱进行防砂,采用高真空隔热管注汽。为保证φ114．3 mm高真空隔热管下入水平段B靶点,考虑最大内通径以及强度要求,滤砂管以φ168．3mm套管为基管进行设计,根据该井的实际情况, 滤砂管长度设计为4．7 m,防砂管柱每5 m左右设计一组扶正器。为保证隔热管顺利下入以及封隔器成功坐封,将封隔器下至稳斜段。该井投产后日产油36．2 t．井口含砂低于0．3%,满足了超稠油油藏的防砂要求。The formation of Shasan Section in Zhengkeping 1 Well is characterized by high porosity, high permeability and high sand production, it is not suitable to control sand production by open hole completion, and perforation completion is preferred. Ф244.5 mm OD casing is run into the horizontal interval in the well. After perforation, integrated sand control string （ consisting of screen pipes, stabilizers and packers） is run into the well. Steam is injected through highly-vacuum insulating pipe. In order to make sure that the Ф114.3 mm insulating pipe could be run into point B, considering requirements for maximum drift diameter and strength, a Ф168.3 mm casing is employed to make a screen pipe. According to the actual downhole situations, the screen pipe length is determined to be 4.7 m, and one group of stabilizers are assembled every 5m. In addition, packers are run into tangent hole segment. After production, the well yield crude oil 36.2t every day, meanwhile, its sand production is less than 0. 3%, which meet demands for sand control for heavy oil reservoirs, and make great breakthrough in sand control technology for large size horizontal wells.

关 键 词：水平井 防砂 稠油油藏 郑科平1井 

分 类 号：TE358.1[石油与天然气工程—油气田开发工程]