second class also control The second class well controls to mean only depend well inside fix the well liquid liquid pillar the pressure have no command over geologic strata pressure, pressure inside the well Lose balance, the geologic strata fluid invades well. appear well to invade, the mouth of a well appears to overflow to […]

Pressing the well is depend to press combine the liquid liquid pillar pressure effectively control geologic strata fluid of pressure, the geologic strata inevitably wants to be subjected to To press the influence of well liquid, it influences degree and presses the quality of well effect and be decided by to press the well liquid […]

The oil rounds underground circumstance stem to differ ten thousand do not, is mining to weigh to guard an oil layer(well) variety and take turns to have a difference, put Each homework is also each 4 H not breeze:Ex- well bottom in door ten have to have with the Bu a few kinds: ①Zhao Xia’s […]

1.the empty well press combine The reason that the occurrence overflows to flow is because rise drill the occurrence severely take out to draw, the geologic strata fluid gets into combine inside, or because of electricity While measuring to wait an empty well homework fix a well liquid over a long period of time hold […]