Reaming technology for CSDP-2 hole of South Yellow Sea Earthquake Monitoring Network

doi:10.12143/j.ztgc.2022.06.004

Home > Archive>Volume 49, Issue 6, 2022 >30-35. DOI:10.12143/j.ztgc.2022.06.004

Reaming technology for CSDP-2 hole of South Yellow Sea Earthquake Monitoring Network
DOI:
                        10.12143/j.ztgc.2022.06.004
                    
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Author:
                        GE Xiaohua1,2GE Xiaohua
Drilling Engineering Technology Research Center of Shandong Bureau of Geology and Mineral Resources,Yantai Shandong 264004， China;The Third Geological Team of Shandong Bureau of Geology and Mineral, Yantai Shandong 264004, China
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ZHAI Yufeng1,2ZHAI Yufeng
Drilling Engineering Technology Research Center of Shandong Bureau of Geology and Mineral Resources,Yantai Shandong 264004， China;The Third Geological Team of Shandong Bureau of Geology and Mineral, Yantai Shandong 264004, China
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WANG Luzhao1,2WANG Luzhao
Drilling Engineering Technology Research Center of Shandong Bureau of Geology and Mineral Resources,Yantai Shandong 264004， China;The Third Geological Team of Shandong Bureau of Geology and Mineral, Yantai Shandong 264004, China
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SUN Feifei1,2SUN Feifei
Drilling Engineering Technology Research Center of Shandong Bureau of Geology and Mineral Resources,Yantai Shandong 264004， China;The Third Geological Team of Shandong Bureau of Geology and Mineral, Yantai Shandong 264004, China
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JIANG Xiao1,2JIANG Xiao
Drilling Engineering Technology Research Center of Shandong Bureau of Geology and Mineral Resources,Yantai Shandong 264004， China;The Third Geological Team of Shandong Bureau of Geology and Mineral, Yantai Shandong 264004, China
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Affiliation:1.Drilling Engineering Technology Research Center of Shandong Bureau of Geology and Mineral Resources,Yantai Shandong 264004， China;2.The Third Geological Team of Shandong Bureau of Geology and Mineral, Yantai Shandong 264004, China
Clc Number:P634
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Abstract:

It is an important part of the construction of the “Belt and Road” seismic monitoring network to carry out reaming and upgrading of CSDP-2 hole of the “Deep Marine Seismic Monitoring Network”. By summarizing the drilling process used for reaming CSDP-2 hole in the South Yellow Sea， a set of drilling technology suitable for offshore deep drilling has been developed： including rotary water well drilling rig which was used on the drilling platform to make the equipment modular and portable； Mud pulse MWD which can effectively save survey time and improve drilling quality from the single point inclinometer. Seawater based low solid polymer drilling fluid which has effectively tackled the problems such as mudstone expansion and mud production in water sensitive formation， circulation loss in broken formation， hazard gas emission from gas bearing formation so as to prevent downhole incidents. The research results can provide technical support and reference for subsequent deep ocean drilling.

Key words:“Belt and Road”;South Yellow Sea;seismic monitoring network;ocean drilling;reaming and upgrading;rotary water well drilling rig;MWD;seawater based low solid polymer drilling fluid

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History

Received:July 03,2022
Revised:October 10,2022
Adopted:October 12,2022
Online: December 05,2022
Published: November 10,2022

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