北京尊宏科技发展有限公司正式通过ISO9001国际标准质量体系认证
网站首页 Home 关于我们 About Us 公司动态 Company Events 行业新闻 Industry News 主要业务Business Scope 经典案例 Application Cases 下载中心 Download Center 联系我们 Contact Us
您的位置:网站首页 > 主要业务
机械解堵采油器
   

一、安装范围
    机械解堵采油器是通过解除油层近井地带的堵塞来达到增产的目的,所以依据完备的地质资料来选择那些发生了堵塞的油井是决定机械解堵采油器使用效果的关键因素。所以,应选择下列油井来安装机械解堵采油器:
1、各种工艺措施造成堵塞的油井;
2、各种添加剂和工作液造成损害性堵塞的油井;
3、因温度、压力、PH值及矿化度等热力学条件的变化而在近井地带形成的乳化堵、无机盐堵的油井;
4、井内析出高分子重质组分形成的有机质堵塞的油井;
5、前期生产正常,后期变为间抽的油井;
6、油层近井地带存在液阻效应,渗流阻力大的油井;
7、油层物性较好,生产过程中动、静不符的油井;
8、油层表面损坏,近井地带压力损失较大的油井;
9、油井具有能量,但能量下降幅度大或邻井产量高而本井产量低的油井;
10、油层近井地带存在堵塞,污染的油井,如冲砂、洗井造成 污染导致产量突然下降的油井;

二、工作原理
    当抽油机上冲程时,油管中液柱重量转移到抽油杆上,油管弹性收缩向上运动,带动机械解堵采油器向上运动,撞击滑套产生振动,使振动片发出振动波传入地层,同时,使正向单流阀下方区域形成负压区,又对地层产生一股强大的、具有抽吸能力的负压水力波;当抽油机下冲程时,油管中液柱载荷又全部作用在油管上,油管弹性伸长向下运动,带动机机械解堵采油器向下运动,撞击滑套产生振动,使振动片发出振动波传入地层,同时,使反向单流阀下方区域形成高压区,又对地层产生一股较小的、具有挤压作用的高压水力波。
    机械解堵采油器就是利用油管柱周期性的弹性变形,实现周期性的脉冲式往复运动,将系统内部的撞击能量和井筒内的液体压力变化能量一同转化为波动能量,传入地层。这种综合波动能量作用于油流通道后,由于油、水、蜡及各种结垢堵塞物的密度不同,受冲击后各自产生的物理变化也不相同,致使相邻两种物质的接触面产生相对位移,即:发生剥落,使之产生松动,再加上井筒内液体压力波的正向和反向的两种方向推力作用,即:抽吸力和挤压力的活塞作用,使颗粒物和液滴再次受到扰动,最终,迫使“粘着”的颗粒物脱离,迫使不易移动的液滴开始流动,从而,实现增加原油产量的目的。

三、主要技术指标

项 目 指 标
机械解堵采油器总长 2100mm
机械解堵采油器上接头扣型 21/2″平式油管扣
钢体最大外径 D:113mm
弹性变径活塞最大外径 D:124.5mm
弹性变径活塞最小外径 D:105mm

适用套管规格 外径:139.7mm
                 壁厚:7.72mm
                 内径:124.26mm

四、注意事项
     1、下管柱过程中务必平稳操作,防止磕碰振动片;
     2、机械解堵采油器的最佳安装位置是油层中部,以确保其转化的综合能量最大程度地传入油层。若不能下到油层中部,则必须保证机械解堵采油器在油层上部,误差越小越好;
     3、机械解堵采油器与人工井底砂面距离不得小于80米;
     4、机械解堵采油器不得和油管锚同时使用;
     5、套管严重变形不能使用;

Mechanical Removing Oil Collector
I. Scope of Application (安装范围)
    The Collector removes the blockage existing in the oil storage layers at the immediate vicinity of the wellbore so as to increase the oil output. So it is the key point for success to select suitable wells where the collector is installed on the basis of available geological data. The wells with the following conditions are eligible:
1.The oil well involved in clogging due to various technical and technological measures.
2.The oil well involved in damaging clogging due to various additives and working fluids.
3.The oil well involved in emulsification clogging and inorganic salt clogging formed from the changes due to the thermodynamic conditions such as temperature, pressure, PH value and degree of mineralization in the nearby area of the well.
4.The oil well involved in organic matter clogging formed by macromolecule heavy constituents separated out from the well.
5.The oil well that is normal at the early stage and then pumps at intervals later on.
6.The oil well that has fluid lock effect and large seepage resistance in the near well-bore area.
7.The oil well located in an area where the physical property of oil layers is comparatively good, but there exists static-dynamic unconformity during production.
8.The oil well located in an area where the oil layer surface is damaged and the pressure loss in the vicinity of the well-bore is comparatively large.
9.The oil well that holds enough energy available, but the output of which decreases greatly or the output of the adjacent well is higher than its output.
10.Clogged or polluted oil wells located in the oil layers in the vicinity of the well, or oil wells with output decreasing suddenly due to pollution caused by sand, washing and well flushing, etc.
II. Working Principle
    When the pumping unit does an upward stroke, the weight of the liquid column inside of the oil pipe is transferred onto the pumping rod; the oil pipe moves upwards due to the elastic shrinkage, driving the mechanical removing oil collector upward. Then, when the collector impacts against the slide bushing, vibration is created, being transferred into the stratum. At the same time, the positive-direction one-way valve closes and the adjustable piston assembly blocks the oil casing circular oil channel, making the space under the valve assume negative pressure, which acts as a powerful pumping force on the stratum.
    When the oil pumping unit does a downward stroke, the load of the liquid column inside the oil all acts on the oil pipe, which moves downwards due to its elastic extension, driving the collector downward. Then, when the collector impacts against the slide bushing, vibration is created, being transferred into the stratum. At the same time, the negative-direction one-way valve closes partially and the adjustable post on assembly still blocks the oil casing circular oil channel, making the space under the negative-direction one-way valve assume a high pressure, which acts as a back blast against the oil channel in stratum.
    The mechanical removing oil collector imposes a frequent alternating pumping-pressing force on the stratum by means of periodic up and down movements due to the oil pipe column’s periodic elastic transformation. Liquid drops and jam particles in the oil stratum, subject to the vibration generated due to the frequent pumping-pressing action, are forced to break away from their original positions. Ultimately, the liquid drops not prone to flowing begin to flow and the jam particles adhering to oil channels break away, thus fulfilling oil channel dredged and the aim to increase the crude oil yield. III. Main Technical Date
Overall length:2100mm Buckle Type of the two ends:2 1/2″Flat Max. Diameter of elastic reducing piston:124.5mm Min. Diameter of elastic reducing piston :105mm Specification of applicable casing pipe: External Diameter:139.7mm Wall thickness:7.72mm Internal Diameter:124.26mm
IV. Precautions:
1.During the process of lowering the pipes, smooth and steady handling is required so that the vibrating reeds are not bumped.
2.The best installation position of the collector is in the middle part of the oil layer so that the energy it generates can be transmitted into the oil layer with the best efficiency. If it can not be installed in the middle of the oil layer, make sure to install it on the upper part of the oil layer with error as less as possible.
3.The distance of the collector to the artificial bottom of the well should not be less than 80 meter.
4.The collector can no be used at the same time with the tubing anchor.
5.Seriously deformed casing pipes can not be used.



 

主要业务

工作原理

地址:北京市经济技术开发区西环南路18号C座107
Copyright © 2011 www.zunhong.com All Right Reserved.
京ICP备06000599号