Tamp hole plug system and method

Details Tamp hole plug system and method Tamp hole plug system and method

1986-06-30

1988-04-12

Novosad, Stephen J.

Wells

Processes

Cementing, plugging or consolidating

166286, 102333, E21B 33138

Patent

active

047367962

ABSTRACT:
Shallow boreholes, e.g. seismic shot holes are usually sealed with cement, gravel or more recently by pouring a water swellable material such as bentonite into the hole. A more effective method of sealing involves the insertion of an impermeable bottom plug into the hole, followed by a thick layer of a particulate material such as sodium bentonite which expands when in contact with water to seal the hole. A top plug can also be used with or without a cover of cuttings to promote lateral expansion of the sealant in the hole.

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