Paper Title:
Φ311 Automatic Vertical Drilling System
  Abstract

During drilling, how to achieve the aim of deviation control and fast drilling effectively is a common technique issue. Though there are some anti-deviation and well straightening methods at present in drilling fields, most of them have their disadvantages, such as decreasing the weight on bit (WOB) and the rate of penetration (ROP). These drilling methods can’t achieve the aim of deviation control and fast drilling economically and effectively in high dip, fractured, fault zones, and other abnormal formations. . Automatic Vertical Drilling System (AVDS) is a Mechanical-Electrical-Hydraulic integrated drilling tool, and it is also an intelligent drilling system. As an advanced technology, the AVDS is a great breakthrough in deviation control and fast drilling. According to the result of theoretical analysis and oilfield applications, the AVDS can not only increase the weight on bit and improve the rate of penetration greatly, but also can guarantee improved well bore quality. And perfect borehole quality is an important premise of subsequent operation while drilling. Φ311 Automatic Vertical Drilling System (Φ311 AVDS) belongs to the relative-static-effective AVDS, it has been experimented effectively and successfully in Xinjiang oilfield. By the results of the experiments, the indexes of the Φ311 AVDS have met the design requirements and achieved vertical and fast drilling aim in high dip formations. The paper aims to introduce the characteristics, operating principles and matching technologies of the Φ311 AVDS.

  Info
Periodical
Chapter
Chapter 6: Petroleum Machinery and Engineering
Edited by
Zhijiu Ai, Xiaodong Zhang, Yun-Hae Kim and Prasad Yarlagadda
Pages
611-616
DOI
10.4028/www.scientific.net/AMR.339.611
Citation
S. Q. Xu, R. M. Chen, C. Y. Ai, Z. H. Song, J. Ma, Z. J. Mu, X. J. Xu, G. Q. Hu, "Φ311 Automatic Vertical Drilling System", Advanced Materials Research, Vol. 339, pp. 611-616, 2011
Online since
September 2011
Export
Price
$32.00
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