石油矿场机械
石油礦場機械
석유광장궤계
OIL FIELD EQUIPMENT
2014年
8期
57-60
,共4页
顶部驱动钻井%下套管%装置%结构
頂部驅動鑽井%下套管%裝置%結構
정부구동찬정%하투관%장치%결구
top drive drilling%casing running operate%device%structure
内卡式顶驱下套管装置的卡瓦是插入套管内，通过卡紧套管本体的内壁来实现转矩传递，存在成本高、管理复杂、增加作业工作量等缺点。研制了接箍卡紧式顶驱下套管装置，通过卡紧套管接箍外壁来传递转矩，并采用弹性密封垫圈密封接箍的端面。该装置通过更换4种钳头，可进行114．3～508．0 mm（4～20英寸）套管的下井作业，同时实现套管柱旋转、下压操作、泥浆循环，使井眼缩径、井壁坍塌、岩屑沉淀等问题得到及时排除，作业效率高。介绍了该装置的结构和工作原理。
內卡式頂驅下套管裝置的卡瓦是插入套管內，通過卡緊套管本體的內壁來實現轉矩傳遞，存在成本高、管理複雜、增加作業工作量等缺點。研製瞭接箍卡緊式頂驅下套管裝置，通過卡緊套管接箍外壁來傳遞轉矩，併採用彈性密封墊圈密封接箍的耑麵。該裝置通過更換4種鉗頭，可進行114．3～508．0 mm（4～20英吋）套管的下井作業，同時實現套管柱鏇轉、下壓操作、泥漿循環，使井眼縮徑、井壁坍塌、巖屑沉澱等問題得到及時排除，作業效率高。介紹瞭該裝置的結構和工作原理。
내잡식정구하투관장치적잡와시삽입투관내，통과잡긴투관본체적내벽래실현전구전체，존재성본고、관리복잡、증가작업공작량등결점。연제료접고잡긴식정구하투관장치，통과잡긴투관접고외벽래전체전구，병채용탄성밀봉점권밀봉접고적단면。해장치통과경환4충겸두，가진행114．3～508．0 mm（4～20영촌）투관적하정작업，동시실현투관주선전、하압조작、니장순배，사정안축경、정벽담탑、암설침정등문제득도급시배제，작업효솔고。개소료해장치적결구화공작원리。
The working principle of Casing Running Tool (Internal Clamping type)is clamping the inner wall of casing by inserting the slip to realize torque transmission,there are several defects such as high cost,complex management,increased operate workload.Top Drive Casing Running Tool (Collar Clamping type)uses clamping the outer wall of casing coupling to transit torque and adopt elastic seal washer to seal coupling end face.The device could suit to the running operation of casing from 114.3 to 508.0 mm (4 to 20 inches)by changing four different size tong head to realize casing rotate and press operate and mud circulating simultaneously,thus avoiding some dif-ficulties such as hole shrinkage,borehole wall collapse and debris deposits.The structure and working principle of this device are introduced in this paper.
