Level subsea template installation

DETAILED DESCRIPTION I claim: 1.
The method of installing an underwater template in a level condition on the floor of a body of water comprising: lowering from a rig at the top of the water to the floor on a running pipe, a receptacle for a quantity of fluent, settable material; supplying fluent material to said receptacle through said pipe; allowing said fluent material to settle to provide a level upper surface on said fluent material; removing said running pipe; allowing said fluent material to set and form a firm base with a level upper surface; and then landing an underwater template on the level upper surface of the base.
2.
The method of claim 1; wherein said receptacle has bladder means separating said fluent material from the water.
3.
The method of claim 1; wherein said receptacle has a lower membrane engaged with the floor and separating said fluent material from the floor.
4.
The method of claim 1; wherein said receptacle has a lower membrane engaged with the floor and separating said fluent material from the floor; said receptacle having an upper membrane separating said fluent material from the water.
5.
The method of installing an underwater template in a level condition on the floor of a body of water comprising: lowering from a rig at the top of the water to the floor, a receptacle for a quantity of fluent, settable material; supplying fluent material to said receptacle to provide a level upper surface on said fluent material; allowing said fluent material to set and form a firm base with a level upper surface; and then landing an underwater template on the level upper surface of the base; and including drilling a bore hole through said template and receptacle into the earth formation below the floor; lowering a pipe into said bore hole and supporting said pipe on said template; and then cementing said pipe in said bore hole to anchor said template on said base.
6.
The method of claim 1; including extending guide lines from said receptacle to the rig, and lowering said template on said guide lines to land said template on said base