CN111411923A - 一种泡沫镍防砂筛管及其制作方法 - Google Patents
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Abstract
一种泡沫镍防砂筛管及其制作方法,所述泡沫镍防砂筛管由泡沫镍金属板材卷曲并焊接而形成。本发明还包括一种所述泡沫镍防砂筛管的制作方法。利用本发明泡沫镍防砂管替代多层金属网布筛管,可解决多层金属网布筛管在特超稠油、高泥质、细粉砂等油气层完井防砂中,出现有效期短,抗蚀性差、易堵塞等问题,可实现提升筛管防砂作业时间、提高油井开采量和降低作业成本。
Description
技术领域
本发明涉及一种泡沫镍防砂筛管及其制作方法。
背景技术
防砂筛管作为油田开采中主要防砂器材,其种类繁多,目前常用的主要是多层金属网布筛管,这种多层金属网布筛管在特超稠油、高泥质、细粉砂等油气层完井防砂中,出现有效期短,抗蚀性差、易堵塞等现象,成为该筛管应用的瓶颈。
发明内容
本发明所要解决的技术问题是,提供一种可解决多层金属网布筛管在特超稠油、高泥质、细粉砂等油气层完井防砂中,出现有效期短,抗蚀性差、易堵塞等问题的泡沫镍防砂筛管及其制作方法。
本发明解决其技术问题所采用的技术方案是:
本发明之泡沫镍防砂筛管,由泡沫镍金属板材卷曲并焊接而形成。
进一步,所述泡沫镍防砂筛管的孔径为10-200PPi(优选30-80PPi)、体密度为0.5-4g/cm3(优选1.5-2.5g/cm3)。
进一步,所述泡沫镍防砂筛管的厚度为1-20mm(优选3-10mm)、高度为100-4000mm、管径为4-500mm,具体尺寸可根据客户需求调整。
本发明之泡沫镍防砂筛管的制作方法,包括以下步骤:
将海绵经PVD(物理气相沉积)方法沉积一层金属镍,再将沉积了金属镍的海绵进行电镀,电镀结束后,水洗,烘干,再经焚烧炉焚烧除去内层海绵,再经还原炉将氧化镍还原,再卷曲,将接头处焊接,即可制得泡沫镍防砂筛管。
进一步,所述PVD方法是指将海绵放入连续卷绕真空镀膜机中,设置湿度≤70%,机械泵功率为10-22kw,维持泵功率为1-3kw,罗茨泵功率为10-15kw,扩散泵功率为25-36kw,输出电流为10-50A,电压为350-550V,镀膜次数为1-4次,拉伸张力为5-40N,充入氩气量为100-400ml/min,走速为1-5m/min,根据海绵长度设置溅射时间,待溅射完毕获得PVD半成品。
进一步,所述电镀是指将经过PVD处理的海绵,用挂具装好后,在硫酸镍浓度为200-400g/L、氯化镍浓度为20-70g/L、硼酸浓度为30-60g/L、pH为3-5、温度为40-70℃的溶液中电沉积反应,电流密度为1-5A/dm2、反应时间为12-60小时。
进一步,所述焚烧的温度为300-600℃。
进一步,所述还原的温度为600-900℃。
进一步,所述卷曲是指采用卷曲机将泡沫镍金属板材卷曲成圆筒形。
进一步,所述焊接是采用摩擦焊的焊接方法将接头焊牢固。
与现有技术相比,利用本发明泡沫镍防砂管替代多层金属网布筛管,可解决多层金属网布筛管在特超稠油、高泥质、细粉砂等油气层完井防砂中,出现有效期短,抗蚀性差、易堵塞等问题,起到延长筛管防砂作业时间,提高采油效率的效果。
本发明泡沫镍防砂管可满足不同地层沙粒度分布对挡砂介质的需求。
附图说明
图1为本发明实施例的结构示意图;
图2为本发明实施例的泡沫镍金属板材的结构示意图;
图中:1.泡沫镍防砂筛管,2.泡沫镍防砂筛管接头的焊口,3.泡沫镍金属板材。
具体实施方式
以下结合附图及实施例对本发明作进一步说明。
实施例
参照图1和图2,本实施例之泡沫镍防砂筛管1,由泡沫镍金属板材3卷曲并焊接而形成。
本实施例中,所述泡沫镍防砂筛管1的孔径为80PPi、体密度为2g/cm3。
本实施例中,所述泡沫镍防砂筛管1的厚度为8mm、高度为1000mm、管径(内径)为180mm。当然,也可设计成其它尺寸的产品,具体产品尺寸可根据客户需求调整。
制作方法,包括以下步骤:
将海绵经PVD(物理气相沉积)方法沉积一层金属镍,再将沉积了金属镍的海绵进行电镀,电镀结束后,水洗,直至水洗液为清澈透明无绿色,烘干,再经焚烧炉焚烧除去内层海绵,再经还原炉将氧化镍还原,再卷曲,将接头处焊接,即可制得泡沫镍防砂筛管。
本实施例中,所述PVD方法是指将海绵放入连续卷绕真空镀膜机中,设置湿度≤70%,机械泵功率为15kw,维持泵功率为2kw,罗茨泵功率为12kw,扩散泵功率为30kw,输出电流为30A,电压为400V,镀膜次数为3次,拉伸张力为20N,充入氩气量为200ml/min,走速为3m/min,根据海绵长度设置溅射时间,待溅射完毕获得PVD半成品。
本实施例中,所述电镀是指将经过PVD处理的海绵,用挂具装好后,在硫酸镍浓度为300g/L、氯化镍浓度为40g/L、硼酸浓度为40g/L、pH为4、温度为50℃的溶液中电沉积反应,电流密度为3A/dm2、反应时间为40小时。
本实施例中,所述焚烧的温度为500℃。
本实施例中,所述还原的温度为700℃。
本实施例中,所述卷曲是指采用卷曲机将泡沫镍金属板材卷曲成圆筒形。
本实施例中,所述焊接是采用摩擦焊的焊接方法将接头焊牢固。
与现有技术相比,利用本发明泡沫镍防砂管替代多层金属网布筛管,可解决多层金属网布筛管在特超稠油、高泥质、细粉砂等油气层完井防砂中,出现有效期短,抗蚀性差、易堵塞等问题,起到延长筛管防砂作业时间,提高采油效率的效果。
本发明泡沫镍防砂管可满足不同地层沙粒度分布对挡砂介质的需求。
Claims (10)
1.一种泡沫镍防砂筛管,其特征在于:由泡沫镍金属板材卷曲并焊接而形成。
2.根据权利要求1所述的泡沫镍防砂筛管,其特征在于:所述泡沫镍防砂筛管的孔径为10-200PPi、体密度为0.5-4g/cm3。
3.根据权利要求1或2所述的泡沫镍防砂筛管,其特征在于:所述泡沫镍防砂筛管的厚度为1-20mm、高度为100-4000mm、管径为4-500mm。
4.一种如权利要求1所述的泡沫镍防砂筛管的制作方法,其特征在于,包括以下步骤:
将海绵经PVD方法沉积一层金属镍,再将沉积了金属镍的海绵进行电镀,电镀结束后,水洗,烘干,再经焚烧炉焚烧除去内层海绵,再经还原炉将氧化镍还原,再卷曲,将接头处焊接,即可制得泡沫镍防砂筛管。
5.根据权利要求4所述的泡沫镍防砂筛管的制作方法,其特征在于:所述PVD方法是指将海绵放入连续卷绕真空镀膜机中,设置湿度≤70%,机械泵功率为10-22kw,维持泵功率为1-3kw,罗茨泵功率为10-15kw,扩散泵功率为25-36kw,输出电流为10-50A,电压为350-550V,镀膜次数为1-4次,拉伸张力为5-40N,充入氩气量为100-400ml/min,走速为1-5m/min。
6.根据权利要求4或5所述的泡沫镍防砂筛管的制作方法,其特征在于:所述电镀是指将经过PVD处理的海绵,用挂具装好后,在硫酸镍浓度为200-400g/L、氯化镍浓度为20-70g/L、硼酸浓度为30-60g/L、pH为3-5、温度为40-70℃的溶液中电沉积反应,电流密度为1-5A/dm2、反应时间为12-60小时。
7.根据权利要求4或5所述的泡沫镍防砂筛管的制作方法,其特征在于:所述焚烧的温度为300-600℃。
8.根据权利要求4或5所述的泡沫镍防砂筛管的制作方法,其特征在于:所述还原的温度为600-900℃。
9.根据权利要求4或5所述的泡沫镍防砂筛管的制作方法,其特征在于:所述卷曲是指采用卷曲机将泡沫镍金属板材卷曲成圆筒形。
10.根据权利要求4或5所述的泡沫镍防砂筛管的制作方法,其特征在于:所述焊接是采用摩擦焊的焊接方法将接头焊牢固。
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CN103277074A (zh) * | 2013-05-23 | 2013-09-04 | 吉林市卓尔新型金属材料有限公司 | 一种泡沫镍基硅合金防砂器及其制造方法 |
CN106801157A (zh) * | 2015-11-26 | 2017-06-06 | 常德力元新材料有限责任公司 | 一种高致密性泡沫镍的制备方法 |
CN108707931A (zh) * | 2018-06-05 | 2018-10-26 | 常德力元新材料有限责任公司 | 多微孔泡沫镍及其制备方法 |
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CN113521884A (zh) * | 2021-06-30 | 2021-10-22 | 中海油能源发展股份有限公司 | 一种筒状油水分离滤芯、组件及其制备方法和应用 |
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