• <abbr id="cyced"></abbr>
          1. 亚洲成av人片一区二区三区,免费无码av一区二区三区,日韩大片在线永久免费观看网站,日本熟妇中文字幕三级,国产精品女同久久久久电影院,日韩成人无码毛片一区二区,亚洲另类欧美综合久久,精品日产高清卡4卡5区别

            Products & services

            Hilong Non-Slip-Crush Drill Pipe

            Product Introduction 

            Hilong Non-Slip-Crush (NSC) drill pipe is specially designed for solving problems such as the damage to the drill pipe body by the slip, the low operation efficiency of double-elevator, and the high labor intensity in the operation of TIH and TOH. This product adds one more shoulder positioned close to the box end based on normal API standard drill pipe. During the trip operation, drill string is set at the toothless pneumatic slip, and its weight is supported by the bearing slider of the slip along the axial direction. Besides, this product can afford a convenient way for make-up and break-out by raising its position.                                                                                                                                                                  

             

            Product Advantage

            Compared to standard drill pipe, Hilong NSC drill pipe has advantages as follows:

            ·It completely avoids the slip crush on drill pipe body when associated with toothless pneumatic slip, thus extend the drill pipe service life;
            · It changes from the traditional double-elevator into single-elevator in the opertation of TIH and TOH, which bring the advantage with no need for removing and hanging the elevator frequently. 
            At the same time, a higher box tool joint position design can lead to the make and break more convenient, lower the labor's intensity; and it improves the safety of operation;
            · Improving about 15% efficiency of TIH and TOH which compared with double-elevator, reducing non-drilling time, lowering the cost of operation;
            ·Reducing the sticking risk of drill pipe effectively, lowering the frictional resistance remarkably.

            Product Specification

            (a)Size Range: 4", 4 1/2", 5", 5 1/2", 5 7/8", 6 5/8" etc;
            (b)Steel Grade: G105, S135, HLDT-SH®V150, HLDT-SH®U165.

            主站蜘蛛池模板: 日本黄网站免费| 亚洲欧洲成人av每日更新| 香蕉久久av一区二区三区app| 久久精品av麻豆| 成人区人妻精品一区二区不卡| 777精品出轨人妻国产| 国产精品成人午夜久久| 欧美狠狠入鲁的视频| 国产精品乱码人妻一区二区三区| 亚洲成在人线免费视频| 综合久久—本道中文字幕| 免费无码av一区二区| 午夜福利无码一区二区| 老牛精品亚洲成av人片| 久久精品亚洲中文无东京热| 国产精品久久久久无码av1| 欧美顶级少妇做爰hd| 中文字幕无码av正片| av免费网址在线观看| 无码中文字幕免费一区二区三区| 国产福利日本一区二区三区| 亚洲va在线va天堂xxxx中文| 国产精品亚洲а∨怡红院| 三级网站视频在在线播放 | 国产乱女婬av麻豆国产| 性av无码天堂vr专区| 日本无码一区二区三区不卡免费| 亚洲精品国产一区二区图片| 亚洲色无码专区在线观看| 日本丰满人妻xxxxxhd| 丰满的岳久久乱| 亚洲成在人线在线播放| 黑人巨大av无码专区| 亚洲不卡av不卡一区二区| 婷婷激情综合色五月久久竹菊影视 | 久久精品成人免费国产片小草| 国产在线拍揄自揄视频导航| 色妞www精品免费视频| 一区二区伊人久久大杳蕉| 欧美日韩精品一区二区三区不卡| 国产精品亚洲va在线|