Chinese oil network news October 16th, the reporter was informed that the Su 77 block maximum displacement directional well Su 77-0-4C3 well western drilling directional well technology services company providing technical services successfully drilled, refresh the Su 77 block construction of directional well horizontal displacement of the longest record.
Su 77-0-4C3 well has a well depth of 3502 meters, a horizontal displacement of 1453.58 meters and a target area of 65 meters, which is drilled by the West drilling international drilling company.
In order to provide high quality and high efficiency technical support for the well, the field engineer has carefully formulated the construction plan according to the problems of long inclined section, difficult trajectory control and large torque of later composite drilling. Based on the analysis of the drilling platform, make full use of the "four in one" and "slick" BHA around the composite drilling rules, timely adjustment of drilling trajectory, the formation, drilling tools, drilling trajectory optimal matching three. The use of "four in one" BHA trajectory by - steady - drop changes, increased the proportion of the whole well composite sections, the realization of borehole smooth and increase drilling speed; the "light drill collar assembly straight screw + drill collar can greatly reduce the torque, to achieve fast and safe drilling. Su 77-0-4C3 well drilled directional period of 11.7 days, the target radius of 3.52 meters, all meet the design requirements.
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