It involved the construction of about 50,000 tube Wells in the fadama lands for small scale irrigation, as well as simplifying the drilling technology for the tube Wells.
项目的内容包括新建50000个机井，用于“发达玛”地带的小型灌溉，同时简化打井技术。
"Oilfield development" refers to the use of drilling method and confirms the distribution scope of oil and gas, and oil well can be put into production and be formed a certain scale of production.
“油田开发”指的是用钻井的办法证实了油气的分布范围，并且油井可以投入生产而形成一定生产规模。
Using drilling-and-blasting method and convenient highway transportation for afforestation on two sides of highway in mountain area, the efficiency of large-scale afforestation can be greatly raised.
利用钻孔爆破方法和公路运输的便利条件在山区公路两侧植树造林，能够大大提高大规模造林的效率。
At the stage of exploration and development, the working procedures of drilling operation are various, operation is complicated, and the characters are high investment, large-scale, and high risk.
在油田开发与勘探中，钻井作业工序繁多，操作复杂，具有高投入、大规模、高风险的特点。
At present the study on gas drilling in terms of borehole deviation mechanism and control method is very few and has not form a theory of large scale systems at home and aboard.
国内外对气体钻井井斜机理及控制方面研究较少，还没有形成系统的理论和技术。
TK908DH well was an deepest well with dual lateral, and the difficulty of drilling run up to international grade scale TAML4 level.
TK 908dh井是目前国内完成最深的双分支井，施工难度达到国际分级标准TAML 4级。
TK908DH well was an deepest well with dual lateral, and the difficulty of drilling run up to international grade scale TAML4 level.
TK 908dh井是目前国内完成最深的双分支井，施工难度达到国际分级标准TAML 4级。
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