连续油管拖动喷射酸化在普光高含硫气田的应用  

Application of coiled tubing driven jet acidification in Puguang high sulfur gasfield

作　　者：王建青 WANG Jianqing(Petroleum Engineering Technology Research Institute of Zhongyuan Oilfield Company,SINOPEC,Puyang 457001,China)

机构地区：[1]中国石化中原油田分公司石油工程技术研究院,河南濮阳457001

出　　处：《复杂油气藏》2021年第1期94-97,共4页Complex Hydrocarbon Reservoirs

基　　金：国家科技重大专项《高含硫气藏安全高效开发技术》之课题《高含硫气藏改善储层动用状况工程技术研究》(2016ZX05017-002)。

摘　　要：普光气田单井储层物性差异大,Ⅰ、Ⅱ、Ⅲ类层交互发育,非均质性较强,平面展布变化大,气井投产采用酸压、生产一体化永久式管柱。针对个别井投产后出现生产压差较大,产剖测试储层动用程度低的问题,在不动管柱条件下,研发了高抗硫小直径旋转喷枪,采用连续油管拖动酸化,可实现任意层段喷射,通过酸液溶蚀、压力挤入、冲击波扰动三重效果改善产气剖面。该技术在P101-3井成功应用。In Puguang Gasfield,the physical properties of single well reservoirs are quite different.TypeⅠ,Ⅱ,andⅢlayers are alternately developed,with strong heterogeneity,and large changes in plane distribution.Gas wells are put into production using acid fracturing and production integrated permanent pipe strings.In view of the problems of large production pressure difference after the production of individual wells and low production rate from the production profile test,the high-sulfur-resistant rotary spray gun with small diameter was developed under the condition of the fixed pipe string,and the coiled tubing was used to drive acidification.which can realize spraying at any interval,and improve the gas production profile through the triple effects of acid dissolution,pressure squeezing,and shock wave disturbance.This technology was successfully applied in P101-3 well.

关 键 词：普光气田 酸化 长井段 连续油管 小直径 旋转喷枪 

分 类 号：TE931[石油与天然气工程—石油机械设备]