Bohai drilling two stage cementing technology to overcome the difficult wells
China Petroleum network news, Bohai drilling second cementing company uses double stage cementing technology, successfully completed Dagang Oilfield West 6-9-10 well cementing construction.
Well 6-9-10 is located in the west of Dagang Oilfield in Hong Kong West Block, the block for many years due to water flooding, formation pressure coefficient of disorder, while drilling repeatedly at the same position wells, leakage phenomenon, wellbore pressure range is small, complex underground situation and challenges for well cementing.
Unable to meet in the conventional cementing the well construction under the condition of the company and the construction of parties who organized the exchange of research, in-depth analysis of the geological characteristics, the well water leakage layer, using two stage cementing technology, optimizing the selection of high performance cement slurry system, wellbore pressure test in the construction and before. Rigorous formulation of well control, well leakage and other related emergency plan, ensure the construction no danger of anything going wrong.
During construction, the company strictly checks each process, the construction and design compliance rate is 100%, and the quality of the cementing job is high.
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