초록

An auxiliary tool within a subterranean well may be manipulated, such as set, by the apparatus having a stroking rod which is manipulated by application of well pressure through fluids in the well combined with booster pressure explosively generated within the apparatus.

대표청구항 ▼

[ What is claimed and desired to be secured by Letters Patent is:] [1.] An apparatus for manipulating an auxiliary tool within a subterranean well comprising:(a) means for selective transmission within said apparatus of a primary source of pressure of and defined within one of: (i) well fluids in sa

[ What is claimed and desired to be secured by Letters Patent is:] [1.] An apparatus for manipulating an auxiliary tool within a subterranean well comprising:(a) means for selective transmission within said apparatus of a primary source of pressure of and defined within one of: (i) well fluids in said well and (ii) pressure generated by a controlled explosion within said apparatus;(b) means for transmitting within said apparatus a secondary source of pressure generated by the other of: (i) well fluids in said well and (ii) pressure generated by a controlled explosion within said apparatus; and(c) means responsive to the primary source of pressure within said apparatus to manipulate the auxiliary tool a first amount and thereafter further responsive to pressure generated by the secondary source of pressure in excess of the primary source of pressure to manipulate the auxiliary tool a second amount. [28.] A method for manipulating an auxiliary tool within a subterranean well comprising the steps of:(a) running into said well upon a conduit a manipulating tool to a pre-selected position for manipulating said auxiliary tool comprising:(1) a cylindrical housing;(2) a control mandrel extending within said housing and including a piston head with first and second piston head faces thereon;(3) an atmospheric chamber within said housing, one end of said chamber terminating at the first piston head face;(4) valving means responsive to one of positive and negative electric voltage signal to selectively communicate hydrostatic well pressure within said well and exterior of said apparatus across the second piston head face and move said mandrel in one direction from an initial position to a first position for manipulation of said tool;(5) explosion means actuatable by the other of positive and negative electric voltage and to generate booster pressure within said apparatus for concurrent application with said hydrostatic well pressure across said second piston head face after said mandrel has been moved to said first manipulation position to drive said mandrel further in said direction to a completed manipulation position;(6) means for capturing the hydrostatic well pressure within said housing and across the second face of said piston head during movement of said mandrel between the first and completed manipulation positions; and(7) cooperating means on said mandrel for locking said mandrel in the completed manipulation position;(b) transmitting one of positive or negative electric voltage signal to said valving means to communicate the hydrostatic well pressure across the second face of said piston head whereby the mandrel moves in one direction from the initial position to the first position for manipulation of the auxiliary tool; and thereafter(c) transmitting to the explosion means the other of positive and negative electric voltage signal to actuate said explosion means to generate booster pressure within the apparatus whereby the well pressure and the booster pressure are concurrently applied across the face of the second piston head to drive the mandrel further in the said direction to a completed manipulation position to activate the cooperating means for locking the mandrel in the completed manipulation position whereby further movement of said mandrel in one direction is prevented.