Patent ID: 9428991
Filing Date: 2016-08-30
CPC Classification: E21B

Claim Text:
1. A downhole multi-frac tool having a plurality of interdependent components, comprising: an axially disposed cylindrical mandrel having a first centrally disposed slot therethrough and a threaded connection at each end thereof for connecting to a downhole packer therewith; an open sleeve affixed to said mandrel and having a second centrally disposed slot therethrough, said second centrally disposed slot being congruent with said first centrally disposed slot and being aligned therewith; a sliding frac valve slidably disposed between said mandrel and said open sleeve, and having third centrally disposed slot therethrough, said third centrally disposed slot being congruent with said first centrally disposed slot and said second centrally disposed slot; a pair of locking spring-like members with each locking spring-like member thereof being fixedly attached at an opposite end of said sliding frac valve and enclosed with a cover ring therearound; a pair of recesses with each recess thereof sized to receive one of said locking spring-like members in an uncompressed condition; a pair of end caps with each end cap affixed to an opposite end of said open sleeve; a first port for receiving a first signal from the well surface to responsively cause said sliding frac valve to slide linearly into an open position wherein said third centrally disposed slot is aligned with said first centrally disposed slot and said second centrally disposed slot, thereby enabling hydrocarbon fluid to flow therethrough; a second port for receiving a second signal from the well surface to responsively cause said sliding frac valve to slide linearly into a closed position wherein said third centrally disposed slot is misaligned with said first centrally disposed slot and said second centrally disposed slot, thereby disabling hydrocarbon fluid from flowing therethrough; and a plurality of O-rings interspersed among said plurality of components, with a first portion thereof inserted within each said component's interstices and with a second portion thereof inserted between said components' interfaces.