Open AccessDesign and Test of Downhole Weight on Bit-Based Autodriller System for Horizontal Well
Author(s) -
Zhihui Wu,
Wenchao Zhang,
Kefei Zhou,
Haichao Zhao,
Huang Hai,
Jie Wang
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1894/1/012032
Subject(s) - drilling , bit (key) , automation , petroleum engineering , directional drilling , interface (matter) , computer science , simulation , engineering , embedded system , automotive engineering , mechanical engineering , computer security , bubble , maximum bubble pressure method , parallel computing
During horizontal well drilling, the pressure difference between the downhole weight on bit (DWOB) and the surface weight on bit (SWOB) will affect the service life of the drilling tool and the efficient production of oil and gas fields. An automatic drilling system device based on DWOB is designed. Choose the S7-200 smart PLC with good expansibility, combine the drilling rig automation principle, and use the Smart-700IE-V3 touch screen to design the human-computer interaction interface. Realize the real-time monitoring and prediction of DWOB. A large amount of test data shows that the new system not only has the advantages of the conventional automatic drilling system, but also can reduce or even eliminate the pressure difference between the surface and the bottom of the hole, achieve accurate control of the DWOB, improve bit performance, and reduce drilling costs.