On the relation between barometric pressure and gas pressure in mines : Henry Harries. (Monthly Notices, Roy. Astron. Soc., Geophys. Sup., June, 1926)
✍ Scribed by G.F.S.
- Publisher
- Elsevier Science
- Year
- 1927
- Tongue
- English
- Weight
- 161 KB
- Volume
- 203
- Category
- Article
- ISSN
- 0016-0032
No coin nor oath required. For personal study only.
✦ Synopsis
IN DRILLING most wells while searching for oil, potash, or other products, water is used.
If bentonite (a clay-like substance) be encountered, drilling difficulties arise when water comes in contact with bentonite.
Although it had been demonstrated that if a saturated solution of common salt replace the water such difficulties for a certain bentonite would be removed, the action of other liquids on different bentonites had not been studied.
The results of a considerable number of experiments indicate that motor oil, kerosene or gasoline used instead of water would prove ideal in the prevention of difficulties experienced in drilling-all varieties of bentonite if water could be excluded (the latter in the presence of bentonite would form oil-water emulsions which would be difficult to handle) and that where water must be used the addition of some salt will prove a satisfactory remedy, the'quantity and nature of the salt being specific for each variety of bentonite.