Email this article Calculation of Equivalent Circulating Density and Solids Concentration in the Annular Space when Reaming the Hole in Deepwater Drilling
- Authors: Lin T.1, Wei C.2, Zhang Q.1, Sun T.3
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Affiliations:
- State Key Lab of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University
- Research Institute of Bohai Drilling Engineering Technology, CNPC
- CNOOC research institute
- Issue: Vol 52, No 1 (2016)
- Pages: 70-75
- Section: Article
- URL: https://journals.rcsi.science/0009-3092/article/view/234396
- DOI: https://doi.org/10.1007/s10553-016-0674-5
- ID: 234396
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Abstract
We propose a method for calculating the cuttings (solids) concentration in the annular space and the equivalent circulating density (ECD) in deepwater drilling, both in the pilot hole drilling step and in the reaming step. We have found that drilling a pilot hole followed by reaming has certain advantages over drilling with no pilot hole. When using technology involving preliminary drilling of a pilot hole, the solids concentration in the annular space and the equivalent circulating density are reduced.
About the authors
Tiejun Lin
State Key Lab of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University
Email: weichenxing@163.com
China, Chengdu, 610500
Chenxing Wei
Research Institute of Bohai Drilling Engineering Technology, CNPC
Author for correspondence.
Email: weichenxing@163.com
China, Tianjin, 300000
Qiang Zhang
State Key Lab of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University
Email: weichenxing@163.com
China, Chengdu, 610500
Tengfei Sun
CNOOC research institute
Email: weichenxing@163.com
China, Beijing, 100027
