榫槽式多层压裂工艺技术研究与应用

详细信息    查看官网全文

• 英文论文题名：Research and Application of Tongue and Groove Slot Type Multilayer Fracturing Technology
• 论文作者：迟云萍
• 英文论文作者：Chi Yunping
• 年：2016
• 作者机构：大庆油田有限责任公司井下作业分公司;
• 论文关键词：大排量 ; 不动管柱多层压裂 ; 低渗透油层 ; 全通径 ; 直井多层
• 英文论文关键词：large displacement ; multilayer fracturing without moving pipe string ; low permeability reservoir ; full bore diameter ; multilayer in vertical well
• 会议召开时间：2016-12-01
• 会议录名称：《采油工程文集》2016年第4辑
• 英文会议录名称：Oil Production Engineering
• 语种：中文
• 分类号：TE357
• 学会代码：DQGY
• 学会名称：大庆油田有限责任公司采油工程研究院
• 页数：5
• 文件大小：1417k
• 原文格式：D

摘要

为了满足大庆油田扶杨油层大排量、大液量压裂工艺需求,研究了榫槽式多层压裂工艺技术。针对常规多层压裂管柱内通径小、局部节流损失大、产生明显节流效应、管柱整体摩阻大的问题,通过计算分析滑套缩径节流损失,给出了地面施工压力预测方法,成功研制了榫槽式多层压裂工艺管柱。现场应用26口井,实现一趟管柱坐压6层,最大施工排量为8.5m~3/min,单井最大压裂液用量为6500m~3。该工艺技术可满足直井特低渗透储层改造的需求,为大庆油田外围难采储量动用提供了有效技术支撑。
In order to meet the needs of fracturing technology with large displacement and large liquid volume in Fuyang reservoir of Daqing Oilfield,the tongue and groove slot type multilayer fracturing technology has been studied.Due to such problems in the conventional multilayer fracturing,as small drift diameter of pipe string,large local throttling loss,significant throttling effect,big frictional resistance in overall pipe string,etc,the throttling loss in narrowing the diameter size of sliding sleeve was calculated,and the prediction method for ground operating pressure was given out,by which the pipe string for tongue and groove type multilayer fracturing was developed successfully.It has been applied to 26 wells,which realized fracturing six layers by one trip with the maximum flow rate of 8.5m~3/min and maximum single well fracturing fluid volume of 6500 m.This technology can meet the needs of reservoir stimulation for vertical wells with extra low permeability,and provide effective technical support for developing the difficult-exploited reserves in peripheral areas of Daqing Oilfield.

引文

[1]郭艳平.朝长地区扶扬油层油气成藏模式及控制因素[J].石油天然气学报,2010,32(5):171-175.
    [2]汪玉梅,张有才,苏红梅,等.大庆油田薄差储层细分压裂改造[J].油气井测试,2006,15(1):53-54.
    [3]王俊.大规模压裂技术在低渗透薄互层油田开发中的应用[J].内蒙古石油化工,2008(10):334-335.
    [4]雷群,胥云,蒋廷学,等.用于提高低—特低渗透油气藏改造效果的缝网压裂技术[J].石油学报,2009,30(2):237-241.
    [5]王民轩,卜凡俭,杜宝坛,等.多功能分层压裂开关在分层压裂管柱中的应用[J].石油机械,2005,33(10):28-29.
    [6]艾志久,王琴,李永革,等.水平井分段压裂投球滑套球座冲蚀分析[J].石油机械,2011,39(10):61-63.
    [7]岳欠杯,刘巨保,胡宝华.深井分层压裂管柱受力计算及结果分析[J].石油矿场机械,2011,40(8):23-28.
    [8]张洋.不动管柱多层压裂工艺技术[J].科学技术与工程,2001,11(35):8869-8871.
    [9]程滢,张旭东,张国强,等.降排量测试法计算流动阻及其在压裂设计中的应用[J].江南石油学院学报,2002,24(4):92-93.
    [10]杜发勇,张恩仑.压裂施工中管路摩阻计算方法分析与改进意见探讨[J].钻采工艺,2002,25(5):41-43.