1.
Preliminary Study on Well Drilling Technique of Semi-Submersible Drilling Platform with Dual Derrick Rig
半潜式钻井平台双井架钻机作业工艺初步研究
2.
Technology Applications of Lifting Derrick with Method of Doublemast and Semi-overturned
双桅杆半翻转法吊装井架的技术应用
3.
TESTING ANALYSIS OF DYNAMICAL CHARCTERISTICS FOR COKE DRUM OF "DOUBLE DRUMS WITH SINGLE DERRICK TYPE
双塔单井架式焦炭塔动力特性实测分析
4.
Study on Dynamic Characteristic of Double Elevating Drilling Rig Derrick and Substructure;
双升式钻机井架及其底座动态特性研究
5.
"drilling rig, platform"
"钻井井架,钻井平台,见 oil (drilling) rig"
6.
two-tubing dual completion well
双管双层分采完成井
7.
bald-headed derrick
无天车工作平台的井架
8.
stacking capacity of derrick
井架的钻杆立根容量
9.
leg base anchorage
井架大腿底脚的固定
10.
self-gured structural mast
自带绷绳的轻便井架
11.
free standing mast
不用绷绳的轻便井架
12.
outside monkey board
折叠式井架外侧二层台
13.
On the Derrick Installation of ShaftⅣ_G In main Shaft of a Coalmine
浅谈塔然高勒煤矿主井IV_G凿井井架安装
14.
The Intensity Testing of Main Well Headframe in Dai Zhuang Mine Shangdong
山东岱庄生建煤矿主井井架强度检验
15.
A framework to support or strengthen a mine or shaft
井壁基架用来支承或加固矿井的构筑
16.
A finite element analysis of headframe intensity of 40-ton workover rig;
40t修井机井架强度的有限元分析
17.
dual induction-laterolog-8 equipment
双感应-八侧向测井下井仪
18.
Research on eccentric correction of dual lateral logging tool in highly deviated wells
大斜井中双侧向测井的仪器偏心校正