[1]马 惠,李立峰,冯绪波.江苏油田不动管柱复合解堵技术的研究及应用[J].复杂油气藏,2019,12(04):79-83.[doi:10.16181/j.cnki.fzyqc.2019.04.017]
　MA Hui,LI Lifeng,FENG Xubo.Composite blockage removal technologywith original production string in Jiangsu Oilfield[J].Complex Hydrocarbon Reservoirs,2019,12(04):79-83.[doi:10.16181/j.cnki.fzyqc.2019.04.017]
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江苏油田不动管柱复合解堵技术的研究及应用()
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《复杂油气藏》[ISSN:1674-4667/CN:31-2019/TQ]

卷:
12卷
期数:
2019年04期
页码:
79-83
栏目:
油气工程
出版日期:
2019-12-25

文章信息/Info

Title:
Composite blockage removal technologywith original production string in Jiangsu Oilfield
作者:
马 惠; 李立峰; 冯绪波
中国石化江苏油田分公司采油二厂,江苏 淮安 211600
Author(s):
MA Hui; LI Lifeng; FENG Xubo
No.2 Oil Production Plant of Jiangsu Oilfield Company, SINOPEC, Huai’an 211600, China
关键词:
江苏油田;  酸化;  解堵;  不动管柱施工;  增产
Keywords:
Jiangsu Oilfield;  acidizing;  blockage removal;  treatment with original production string;  increased oil production
分类号:
TE357.4
DOI:
10.16181/j.cnki.fzyqc.2019.04.017
文献标志码:
A
摘要:
动管柱酸化作业存在作业周期长、施工工艺复杂、施工费用高、作业环境要求高、动复原管柱及洗井作业引起储层新的污染等问题。针对这些问题,以高集、韦庄区块目标井岩样为研究对象,根据不动管柱的施工要求,优化了一种高效的复合解堵体系FH-2。室内评价结果表明,FH-2具有较好的配伍性、岩心溶蚀性、缓蚀性、铁离子稳定性。岩心流动实验表明,对于G6区块岩心,注入复合解堵体系后,岩心渗透率改善幅度为82.4%; 对于W5区块岩心,注入复合解堵体系后,岩心渗透率改善幅度为74.2%。加入的起泡剂,有利于岩心的均匀酸化。该技术在江苏油田成功实施14井次,累计增油3 689 t,取得较好的效果,对因地层结垢或作业污染的油井效果尤为明显。
Abstract:
To address the problems in conventional acidizing,such as complicated process, long operation time,high requirements for conduction condition,difficulty in treatment coordination, high cost,and so on, using core samples from block G6 and block W5 in Jiangsu Oilfield, based on the requirements of acidizing with original production string,a novel composite blockage removal system, FH-2, was developed. Experimental results indicated that the FH-2 system has excellent properties of compatibility with formation brine,retarded acidizing,iron ion stability,and corrosion inhibition. Results of coreflooding tests indicated that after the FH-2 system was injected,the permeabilities of cores taken from G6 and W5 were increased by 82.4% and 74.2%,respectively. The composite blockage removal technology was successfully applied in 14 production wells in Jiangsu Oilfield,with an accumulated oil increase of 3,689 tons,especially in production wells having scale deposition or formation damage by workover.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2019-02-26; 改回日期:2019-06-10。
第一作者简介:马惠(1976—),高级工程师,现主要从事油田化学品研发及油水井增产增注方面的研究。E-mail:mahui.jsyt@sinopec.com。
基金项目:中国石化江苏油田分公司(JS18023)。
更新日期/Last Update: 2019-12-30