In terms of short tripping, tripping out and technical reaming, take technical measures to avoid the circulation of small displacement in unstable formation, so as to ensure the stability of the borehole wall as much as possible and eliminate the circulation of large belly, causing trouble to the follow-up work.
The team carefully organized and held the “geological engineering integration” meeting every week, cooperated with the construction party and relevant parties, predicted the changes of formation lithology in advance, and made comprehensive technical communication in terms of block falling and directional straightening of ground layer, so as to ensure the stability and smoothness of borehole.
Pay close attention to the connection and cooperation of all links, improve the drilling efficiency, shorten the easy collapse of the borehole and the bubble invasion time of the gypsum well section, and ensure the electrical logging from one time to the end.
Tang Yonghai, Yang Ruitao Report..
Adjust the performance of drilling fluid, increase the use of well wall plugging and anti collapse materials, and do a good job of wiper trip and sealing before electrical logging.
Well Xinghua 12 is a pre exploration well with a design depth of 5700m and a completed drilling depth of 5497m.
In the drilling process, insist on drilling with large displacement to ensure the borehole expansion rate.
On October 17, well Xinghua 12 constructed by drilling crew bh70591 realized the electrical logging instrument in the completion electrical logging.
