The authors declare that there is no conflict of interest regarding the publi-cation of this paper.Current common models......

The problem of severe deviation control is already exposure in the gas drilling experimentation of inland oil and gas fi......

对四川油气田裂缝性，孔隙性，低渗透储层以及高陡构造的落空直井，开采到后期的枯竭油气井等运用定向井工艺技术，增加钻是同裂缝的机遇率......