Patent ID: 9494000
Filing Date: 2016-11-15
CPC Classification: E21B

Claim Text:
1. A method of maintaining a hydrostatic pressure exerted on a wall of a wellbore in at least a first interval and a second interval of the wellbore, comprising the steps of: creating at least the first interval and second interval of the wellbore, wherein the step of creating comprises setting at least a top packer, a first isolation packer, and a second isolation packer in the wellbore, and wherein the first interval is located between the top packer and the first isolation packer and the second interval is located between the first and second isolation packers; flowing a liquid through at least a first pressure regulator and a second pressure regulator, wherein the first pressure regulator is located in the first interval of the wellbore, wherein the second pressure regulator is located in the second interval of the wellbore, wherein each of the first and second pressure regulators regulates an amount of pressure exerted by the liquid on the wall of the wellbore, and wherein the first pressure regulator is part of a first sand control assembly that includes a first blank pipe and a first screen, and wherein the first pressure regulator includes a first backflow device that prevents fluid from entering an inner diameter of the first screen via the first pressure regulator from an outer diameter of the first screen when the first pressure regulator is attached to the first screen of the first sand control assembly; maintaining liquid communication between the first and second pressure regulators and the wall of the wellbore; and maintaining the amount of pressure for a specific period of time.