水平井裸眼分段压裂套压阀研制与应用.pdf

2014年第43卷
场机械
第11期第90页
OIL FIELD EQUIPMENT
2014,43(11):90-92
文章编号:1001-3182(2014)11-0090-03
水平井裸眼分段压裂套压阀研制与应用
徐玉龙,程智远,李文艳,姚卫东
(1.渤海钻探工程技术研究院,天沖300280;2,渤海装备中成装备有限公司,天津300280)
摘要:水平井裸眼分段压裂技术作为低压、低渗透油气藏开发的重要增产措施之一,近年来在苏里
格地区得到大力推广应用。套压門是水平井分段压裂配套工具的重要组成部分,主要为压裂施工
后期提供气举通道和套压监测。针对水平井施エ中出现的套压网压カ打开不德定的问题,设计了
内置滑套式套压阀,利用油套压差剪断剪钉推动内置滑套移动并锁紧。同时,给出了入井管柱结构
和施エエ艺。该结构设计合理,打开压力稳定,能够满足现场压裂施工要求。
关键词:水平井:分段压裂;套压阀
中图分类号:TE934.2
文献标识码:B
doi:10.3969/j.issn.1001-3842.2014.11.023
Research and Application of Sliding Sleeve Opened by Casing Pressure Used for
Staged Fracturing in Openhole Orizontal Wells
XU Yu-long,CHENG Zhi-yuan, I.I Wen-yan,YAO Wei-dong
(1. Engineering Technology Research Institute, B1, Tianjin 300280, China: 2. Zhongcheng Equi/ment
Manu facturing Company of Bohai Equi/ment Mana facturing Com /any, Tianjin 300280, China)
Abstract: The staged fracturing technique Tor open hole horizontal wells is efficient for reservoirs
ith low pressure, low porosity and low permeability and has been widely applied in Sulige gas
field recently. Casing valve is the important part of matching tools for staged fracturing which is
mainly for providing gas lift channel and casing pressure monitor With respect to instability prob
lems of open pressure, casing valve of built-in sliding sleeve was designed and differential pressure
between oil pipe and casing pipe cut the shearing pins and inner barrel went down to be locked
Meanwhile, running string structure and construction technology was also proposed. The design
of structure is reasonable and open pressure is stable and field fracturing requirements can be sat-
isfied
Key words: horizontal well; staged fracturing; casing pressure valve
苏甲格气田具有储层迁续性差、非均质性强、低统2等
压、低孔、低渗的特点,采用常规开采方式效粜不理
为了满足苏里格地区水平井生产需求,渤海铈
想。水平井的长水平段可以扩人气层的渗流向积,探工程技术研究院自主研发了水平井分段压裂配套
冇效地提高单产量1。经过多年发展,国外石汕工具川。工具主要由悬挂器、裸眼封隔器、投球滑
公司形成了各具特色的水平井分段压裂技术,例套、压差滑套、坐封球座、回插接头和套压阀组成。
如BJ公?的水力射孔和封隔器分段压製技术、贝克会压是为了在生产阶段方使、安全地连通油会
休斯公可的Frac- Point TM封隔器分段压裂系统、管,避兔带压作业的施工风险,保证水平井的安全
PACKERS PLUS的 Stage FRACTM增产系生产。
收稿日期:2014-05-04
作者筒介:徐下龙(1985-),男,山东菏泽人,工稈师,士,主要从事采油工具研究,E-mail:xuyulong-01@163.com