分层注水工艺技术

The Technology of Layered Water Injection

王建华¹ 李金堂² 邓小伟¹ 李广周² 李俊宏²

1. 中原油田分公司采油工程技术研究院，2.中原油田分公司采油五厂

Oil Production Engineering Technology Research Institute , Zhongyuan Oil-field Company , SINOPEC, Henan 457001 , P. R China

中原油田针对注水井高温、高压,层间矛盾突出,套变井、套损井不断增加的特点,通过近几年的努力和攻关,相继研制出一级两段油套分注、一级两段高压分注管柱、多级高压分注管柱等一系列分注工艺技术。并完成了套变井分注工具的配套。有效期与1998 年以前相比延长了近2.4 倍,耐压指标大大提高。

Aiming at the problem of Water injection well such as high temperature ,high pressure ,casing transform and serious casing failure , ZhongYuan oilfield has been developed one section layered water injection and more sections layered water etc a series of high pressure water-layered technology though the later two years , and finished transformed water well layered water. The term in layered water in jection longered 2.4 times than before in 1998 ,and the undertaked pressure more improved.