Research On Dual Branch Horizontal Well Drilling Technology Of Changbei Block

ChangBei area, while the oilfield company is an important oil and gas resources exploration blocks,therefore, further study to speed up the ChangBei block double branch in horizontal well, not only can furtherdeepen the research of the theory of drilling technology, but also to speed up the ChangBei blocks of explorationand development pace has the very vital significance.This paper mainly ChangBei area of double branch technologies of drilling horizontal well, by open holesidetrack, track adjustment, drilling fluid system optimization special frequent double branch in a series oftechnical problems, summed up in shale segment and coal seam into a series of reasonable for when the technicalmeasures so as to the big success of horizontal displacement double branch construction; Can not only enhancedrilling efficiency, and improve the production Wells; At the same time horizontal well drilling, becomeChangBei project low permeability gas successful development of efficient measures. The project through thebody to the well of the structure design and borehole trajectory control technology, drilling fluid system analysisand security borehole stable technical measures to perfect the double branch technologies of drilling horizontalwell.