Faster Drilling A Three-dimensional Horizontal Well By Integrating Well Path And BHA Design

Autor: Yuan Long, Xueying Wang, Qian Zhou, Feifei Zhang, Mingliang Li
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Journal of Applied Science and Engineering, Vol 26, Iss 10, Pp 1521-1535 (2023)
Druh dokumentu: article
ISSN: 2708-9967
2708-9975
DOI: 10.6180/jase.202311_26(11).0002
Popis: Well path design is an important factor in horizontal drilling. A reasonable well profile scheme can significantly reduce drilling drag and torque, which also can enhance drilling rate. This study proposes an approach to faster drill a three-dimensional horizontal well by integrating well path and bottomhole assembly (BHA) design. The shortcomings of two classic well path design principles of shortest well length and minimum drag are investigated and a method integrating well path and BHA design is developed by altering inclination holding section to a slightly build up section and predicting build rate of BHA. For two conventional design principles, the design processes are developed by minimum curvature model and genetic optimizing algorithm. Case studies show that the optimized well depth or drag of two conventional methods have little difference compared to the unoptimized ones, which indicates that these two optimization methods cannot significantly improve drilling efficiency. For proposed design method, the well path design is developed by minimum curvature model, and the drilling tendency prediction method is established by three-dimensional beam-column theory and the rock-bit interaction model. Besides, a set of bent-housing mud motor with double stabilizers (BH-PDM-D) BHA is chosen to drill the well, according to the build rate prediction of both slide drilling and rotary drilling. The predicted result of drilling cycle shows that for the six-section well profile, the proposed method can reduce the drilling time by 24.2 days.
Databáze: Directory of Open Access Journals
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