Since 1963
ARTICLE
Simulated calculation and application of annular pressure loss for deep slim-hole sidetracking horizontal well
1
Production Technology Research Institute, PetroChina Jidong Oilfield Company, Tangshan, China
2
School of Petroleum Engineering, China University of Petroleum (Huadong), Qingdao, China
Submission date: 2024-09-17
Final revision date: 2025-06-22
Acceptance date: 2025-07-31
Online publication date: 2025-10-20
Corresponding author
Weian HUANG
China University of Petroleum (Huadong), School of Petroleum Engineering, 266580, Qingdao, China
China University of Petroleum (Huadong), School of Petroleum Engineering, 266580, Qingdao, China
KEYWORDS
TOPICS
ABSTRACT
This article analyzes the influence of different displacement (5 L/s–17 L/s (liter per second)) and rotational speed (0 rev/min–120 rev/min) conditions on the annular pressure loss of a slim hole under different eccentricity (0 %–40 %) models through simulation methods and the difference in the annular pressure drop gradient at different drilling tool combinations. Based on numerical simulation, results fitted the multi-factor dimensionless annular pressure drop gradient factor. The accuracy of the fitted factors was verified by calculating the pump pressure of a horizontal wellbore section based on the historical data of the SY-3 well with an error of less than 10 %.
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| eISSN: | 2543-6309 |
| ISSN: | 1429-2955 |
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