首页>
外国专利>
METHOD OF ASSEMBLY OF A STRING OF ELEMENTS FOR DEEPWATER DRILLING AND ULTRADEEP OBSTRUCTION ELEMENT AND CORRESPONDING USE OF THE SAME IN SAID DRILLING STRING
METHOD OF ASSEMBLY OF A STRING OF ELEMENTS FOR DEEPWATER DRILLING AND ULTRADEEP OBSTRUCTION ELEMENT AND CORRESPONDING USE OF THE SAME IN SAID DRILLING STRING
展开▼
机译:深水钻探和超深层阻塞要素的装配方法以及在上述钻探工艺中相应使用的方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
A method of assembly is for a string of drilling elements for deepwater drilling. Each drilling element includes an axial through hole, through which drilling mud can flow, and two connection portions for connecting it in series in the string. The method includes assembling a lower portion of the string, assembling a first drilling element with other drilling devices to create a first section of the string. These steps are repeated until the lower portion is proximate the blowout preventer or the bottom. Assembly of second drilling elements begins while executing a drilling cycle for creating at least a second section of the string. The assembly step is repeated until the second section extends equal to a desired drilling depth. After assembling the lower portion and before assembling the first drilling element, a third drilling element is assembled, which includes an obstruction element for preventing backflow in the string.
展开▼