Patent ID: 11952858
Assignee: nan
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 0:
1. A bottom hole assembly (BHA) and isolation tool connected to a tubing string for selective treatment of zones of interest of a wellbore comprising
an upper sealing element and a lower sealing element, each hydraulically actuable between a radially retracted position and a radially engaged position with the wellbore on an activation pressure;
a BHA annulus fluidly connected to the tubing string;
one or more treatment ports fluidly connecting the BHA annulus and the wellbore between the upper sealing element and the lower sealing element,
wherein when the upper sealing element and the lower sealing element are both in the radially engaged position, a zone of interest between the upper sealing element and the lower sealing element is isolated to enable treatment of the wellbore in the annular space therebetween;
a locating and shifting tool having a shifting element hydraulically actuable to a radially biased position with the wellbore on a locating pressure,
wherein the shifting element is in the radially biased position for locating and shifting a sleeve; and
an expansion joint between the upper sealing element and the lower sealing element comprising a telescoping mechanism activated based on an annular pressure in the BHA annulus between the upper sealing element and the lower sealing element.