Drilling & Geology

Mali water well to 120 m: heavy mud loss in overburden, how to adjust?

Below 60 m only half the mud returns and the wall is sloughing.

Ethiopian volcanic rock: two tricone bits a day, is that normal?

90 m hole, 12 m per bit on average, cost is unsustainable.

Tanzania well-drilling crew: matching compressor to rig?

The DTH hammer needs 18 m³/min but the compressor gives 12.

Cameroon well yields 3 m³/h: which pump size?

70 m well, pumping level 38 m, water needed 300 m away in an 8 m tank.

Zambia exploration: core recovery under 70%, where is the problem?

Wireline coring through alternating hard and soft beds, soft zones at 50%.

埃及西部沙漠与苏伊士湾区块钻机搬迁：拆成几个运输单元更划算？

从亚历山大到井场 160 公里，2000HP 钻机准备第 3 次搬迁，想核一下拆装时间与车队规模。

阿尔及利亚撒哈拉北部油田群钻机搬迁：拆成几个运输单元更划算？

从哈西迈萨乌德到井场 210 公里，2000HP 钻机准备第 3 次搬迁，想核一下拆装时间与车队规模。

安哥拉下刚果盆地油田钻机搬迁：拆成几个运输单元更划算？

从索约到井场 150 公里，2000HP 钻机准备第 3 次搬迁，想核一下拆装时间与车队规模。

尼日利亚尼日尔三角洲陆上区块钻机搬迁：拆成几个运输单元更划算？

从哈科特港到井场 180 公里，2000HP 钻机准备第 3 次搬迁，想核一下拆装时间与车队规模。