The utility model relates to a spiral centralizer, comprising a body and a centralizer, the intermediate centralizer body is provided with symmetrical upper and lower limit of the fixed sleeve and the righting sleeve is arranged between the upper and lower limit set, the righting sleeve by a bearing connected with the righting body, set the centralizer the inside is provided with a hydraulic pump and a signal receiver, a signal receiver signal is connected with a hydraulic pump and a remote control end, hydraulic pump with hydraulic cleaning fluid, the bearings are divided into two groups, are respectively arranged on the upper and lower ends of the centering sleeve, the internal sleeve is provided with a clamping groove centralizer cooperate with bearings, hydraulic pump set between the two groups of bearings, the righting sleeve are arranged on the spiral centralizer slot. And the anti abrasion protection of convex tooth, the spiral centralizer slot. The inner surface is provided with a water outlet hole, both ends of a diameter of less than The diameter of the middle; the utility model has the advantages that: the helical centering device and power drill body centralizer complement each other, can play a role and can play well control, stabilization function, inhibition due to steady inclined section with a power drill, deviation builddrop and azimuth drift problem, effectively reduce the tripping replacement tool the number of combinations, reduce drilling cost.
【技术实现步骤摘要】
一种螺旋扶正装置
本技术涉及一种油田钻井扶正设备,特别涉及一种螺旋扶正装置。
技术介绍
螺旋扶正器是一种刚性满眼钻具稳定器,在钻柱适当位置组装一定数量的螺旋扶正器所形成的底部钻具组合既能在钻直井时防止井斜,钻定向井时控制井眼轨迹,又能使钻柱居中,保证测斜数据的准确性,提高钻头工作的稳定性。在很多油田二开井眼多为8.5in(215.9mm),在定向井施工中采用172mm的动力钻具,由于工程需要,需要在动力钻具上接浮阀和欠尺寸螺旋扶正器,这样既增加了无线随钻测量仪器测点盲区长度,也增加了很多配钻具工序,给现场钻井施工到了很多不便,在水平井和大斜度井中随着井斜的增大钻井液携带岩屑越来越困难,钻井液阻止岩屑沉淀的对流力小于岩屑顺粒的重力,岩屑在运移过程中缺乏再次加速的动力,易在环空底部或井眼低边形成岩屑床,造成井下复杂情况,影响后续施工。
技术实现思路
本技术的目的就是针对现有技术存在的上述缺陷,提供一种螺旋扶正装置。其技术方案是:包括扶正本体和扶正套,扶正本体的中间对称设有上下限位固定套,扶正套设置在上下限位固定套之间,所述的扶正套上通过轴承连接在扶正本体上,所述的扶正套的内部设有液压泵和信号接收器,信号接收器信号连接液压泵和远程控制端,液压泵内设有液压清洗液,所述的轴承分为两组,分别设置在扶正套的上下两端,扶正套的内部设有与轴承相互配合的卡槽,液压泵设置在两组轴承之间,所述的扶正套上设有螺旋扶正卡槽和防磨保护凸齿,所述的螺旋扶正卡槽的内侧面设有出水孔,扶正套的两端直径小于中间直径。所述的螺旋扶正卡槽为6-8条,螺旋扶正卡槽的宽度尺寸为5-7mm。所述的相邻的两条螺 ...
【技术保护点】
一种螺旋扶正装置,其特征是:包括扶正本体和扶正套,扶正本体的中间对称设有上下限位固定套,扶正套设置在上下限位固定套之间,所述的扶正套上通过轴承连接在扶正本体上,所述的扶正套的内部设有液压泵和信号接收器,信号接收器信号连接液压泵和远程控制端,液压泵内设有液压清洗液,所述的轴承分为两组,分别设置在扶正套的上下两端,扶正套的内部设有与轴承相互配合的卡槽,液压泵设置在两组轴承之间,所述的扶正套上设有螺旋扶正卡槽和防磨保护凸齿,所述的螺旋扶正卡槽的内侧面设有出水孔,扶正套的两端直径小于中间直径。
【技术特征摘要】
1.一种螺旋扶正装置,其特征是:包括扶正本体和扶正套,扶正本体的中间对称设有上下限位固定套,扶正套设置在上下限位固定套之间,所述的扶正套上通过轴承连接在扶正本体上,所述的扶正套的内部设有液压泵和信号接收器,信号接收器信号连接液压泵和远程控制端,液压泵内设有液压清洗液,所述的轴承分为两组,分别设置在扶正套的上下两端,扶正套的内部设有与轴承相互配合的卡槽,液压泵设置在两组轴承之间,所述的扶正套上设有螺旋扶正卡槽和防磨保护凸齿,所...
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