Caleb M Kelley

US Patent:

20160208578, Jul 21, 2016

Filed:

Jan 20, 2016

Appl. No.:

15/001800

Inventors:

- Houston TX, US
Ray FRISBY - Houston TX, US
Caleb KELLEY - Houston TX, US

International Classification:

E21B 34/14
E21B 34/10

Abstract:

A balanced piston toe sleeve allows a pressure test cycle to be carried out before opening the bore of the toe sleeve to the wellbore. The balanced piston toe sleeve includes a valve assembly in which a valve piston separates a valve cylinder into a balancing cylinder and an actuation cylinder. The actuation cylinder is coupled to the bore through a check valve which allows unidirectional flow into the actuation cylinder. The balancing cylinder is in fluid communication with the bore. After a pressure test cycle, the pressure in the balancing cylinder reduces, while the pressure in the actuation cylinder is retained by the check valve. The valve piston shifts into the open position, allowing fluid flow from the bore to the toe sleeve.

US Patent:

20150240588, Aug 27, 2015

Filed:

Feb 24, 2015

Appl. No.:

14/630240

Inventors:

- Houston TX, US
Caleb KELLEY - Houston TX, US

International Classification:

E21B 33/127

Abstract:

A downhole packer element includes an inner and outer cable wrapped layer positioned about an inflatable bladder. The inner and outer cable wrapped layers are formed from helically wrapped, parallel cables. The inner cable wrapped layer may be wrapped about a layer of slats. The outer cable wrapped layer may be surrounded by an outer cover. An end sub may serve to couple the downhole packer element to a mandrel.