APPLICATION OF OBSTACLE-AVOIDING HORIZONTAL WELL-BUTTING IN THE MINING OF HUGE THICKLY-BEDDED ROCK SALT DEPOSIT
Changning Well No. 5 in Changning County, Sichuan Province is the first well in huge thickly-bedded salt deposit, in which the technology of obstacle-avoiding horizontal well-butting is applied in China. The drilling of horizontal well is done with DST cabled while-drilling inclinometer. The wellbore of Changning Well No. 5 avoids the bottom of the cavity of Changning Well No. 3 and is successfully butted with the old cavity of Changning Well No. 1. This communication of wells has greatly enhanced extraction and quality of brine and the recovery rate is also increased.
Huge thickly-bedded rock salt deposit cabled while-drilling inclinometer obstacle-avoiding Horizontal Well-Butting brine eztraction
Zheng Maoquan Chen Guangbin
Geological and Well Drilling Brigade of Sichuan Provincial Salt Industry,Zigong, Sichuan, 643000
国际会议
9th International Symposium on Salt(第九届世界盐业大会)
北京
英文
418-422
2009-09-05(万方平台首次上网日期,不代表论文的发表时间)