Checking samples

Checking samples

In consolidated drilling, as in unconsolidated drilling, the helper should catch a sample of the formation being blown out of the well at least every ten feet and at any time when there is a change in the formation. Keeping these samples available for study will be beneficial in picking another location if there is not enough water obtained in this well. Or, if unexpected trouble develops, they will indicate what the formation was.

Once you think the desired quantity of water has been obtained, the test (by collecting the water and checking the time it takes to fill the bucket) should be made very accurately to determine as nearly as possible exactly what the capacity of the well is. Of course it is desirable to run a pump test on a well, but this will be covered in a different chapter.

Assuming the machine did not complete the well the first day, when it is shut down that afternoon at quitting time, the fuel tank should be filled to the top to prevent condensation from forming. This is something the helper should do without being told, and he should also note any supplies that are needed such as rock drill oil, motor oil, compressor oil, fuel oil, pipe, grinding rocks, and so forth. At the same time he fills the fuel tank he should also fill the rock oil tank. If severe dusty conditions have been encountered during that day and the machine or compressor has an oil bath type air cleaner, this should be cleaned and fresh oil added in order that it will be ready to start up operations the next day.