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Study on the Sidewall Coring Technical Proposal of Scientific Drilling Superdeep Borehole

Author: QuYaMing
Tutor: LiGuoMin
School: Chinese Geology University (Beijing)
Course: Geological Engineering
Keywords: Scientific Drilling Ultra- deep hole Sidewall sampling Rotary sidewall sampler
CLC: P634
Type: Master's thesis
Year: 2011
Downloads: 86
Quote: 0
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Abstract


China in the near future is bound to carry out the ultra-deep drilling depths exceeding 10 000m Scientific Drilling Project . Sidewall sampling technique as drilling coring an important method should be taken seriously , and as soon as possible to put into research and development . Literature reading and data collection , and sidewall sampling technique , in-depth research , summed up almost all sidewall sampling techniques , the technology is divided into five categories : ( 1) push-in ; ( 2 ) perforating ; ( 3 ) whipstock drilling ; (4) consecutive cutting style ; ( 5) rotary . And each sampling techniques sampling principle is then analyzed to select representative apparatus for details , and part of the list of technical parameters of these appliances were compared . In addition , also apply these techniques to the scientific drilling ultra- deep hole feasibility . Also affect scientific drilling ultra - deep hole sidewall sampling factors and the problems were discussed. Major analysis of the impact of high temperature , high pressure , cable length and tension , mud and borehole wall several factors such as the ultra- deep hole sidewall sampling , a brief analysis on several other issues . Summed up on the basis of in-depth research and sidewall sampling technique , three apply to scientific drilling ultra- deep hole sidewall sampling technique : whipstock drilling , cutting type continuous rotary drilling and These three methods used in ultra - deep hole sidewall sampling of the advantages and disadvantages are analyzed and compared . On this basis , uses a more advanced rotary sidewall sampling technique recommended in the ultra - deep hole . Some shortcomings of the existing rotary sidewall sampling devices , preliminary design of a new type of rotary sidewall sampler . Sampler is pushed against the composition and structure of fixed institutions, drilling and coring institutions , core mark and count institutions , the working principle of the preliminary design , and pushed against the institutions and fixing mechanism , drilling and coring briefly mechanical analysis . Subsequently, the preliminary design of the hydraulic system of the sampler and security systems . Finally, the prospect of further research of the scientific drilling ultra - deep hole sidewall sampling technique .

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CLC: > Astronomy,Earth Sciences > Geology > Geology, mineral prospecting and exploration > Drilling Project
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