US 12,345,101 B2
System and method for well bore isolation of a retrievable motor assembly
Dwayne Leismer, Houston, TX (US); and Rogelio Cantu, Houston, TX (US)
Assigned to ACCESSESP UK LIMITED, Great Yarmouth (GB)
Filed by ACCESSESP UK LIMITED, Great Yarmouth (GB)
Filed on Dec. 12, 2022, as Appl. No. 18/079,810.
Application 18/079,810 is a division of application No. 15/203,011, filed on Jul. 6, 2016, granted, now 11,525,311.
Claims priority of provisional application 62/327,321, filed on Apr. 25, 2016.
Prior Publication US 2023/0399896 A1, Dec. 14, 2023
Int. Cl. E21B 17/02 (2006.01); E21B 34/06 (2006.01); E21B 41/00 (2006.01); E21B 43/12 (2006.01)
CPC E21B 17/028 (2013.01) [E21B 34/066 (2013.01); E21B 41/0085 (2013.01); E21B 43/128 (2013.01); E21B 2200/06 (2020.05)] 4 Claims
OG exemplary drawing
 
1. A downhole electrical wet connect mandrel, for use in a production tubing-mounted downhole permanent completion, comprising:
a. a wet connect tubular member having an upper connection end and a lower connection end, an outer surface, and an internal bore of a desired internal diameter, the upper and lower wet connect tubular connection ends being connectable to ends of the production tubing to permit axial mounting of the wet connect tubular member as a section of the production tubing in the permanent completion;
b. an inlet section located on the wet connect tubular member, the inlet section comprising a zone of one or more perforations through the tubular member, the zone having an upper zone end and a lower zone end, the inlet section capable of permitting the passage of fluid therethrough;
c. an electrical wet connect located on the wet connect tubular proximate the upper connection end or lower connection end, the electrical wet connect capable of receiving a source of power from a surface power cable extending downhole outside of the production tubing, the electrical wet connect capable of interfacing with a downhole device requiring power that is located proximate the wet connect to supply power to the device;
d. an inner concentric sleeve bore along a length of the internal bore of the mandrel that includes the inlet section, the concentric sleeve bore having an upper shoulder stop and a lower shoulder stop; and
e. an actuatable sliding sleeve capable of moving between a first, closed position forming a seal over the inlet section to prevent passage of fluid through the one or more perforations, and a second, open position permitting passage of fluid through the one or more perforations, wherein the actuatable sliding sleeve further comprises:
i. a tubular sleeve segment located within the concentric sleeve bore and having an outer surface in sliding arrangement with the concentric sleeve bore, an upper end and a lower end defining a length sufficient to cover the one or more perforations within the inlet section;
ii. an upper concentric seal located on the outer surface proximate the upper end of the sleeve;
iii. a lower concentric seal located on the outer surface proximate the lower end of the sleeve;
wherein the sliding sleeve is capable of being moved within the concentric sleeve bore between the upper and lower stops;
wherein when the sliding sleeve is in its open position, the sleeve seals are located within the concentric sleeve bore below the inlet perforation zone to permit passage of fluid through the inlet; and
wherein when the sliding sleeve is in its closed position, the inlet perforation zone is located between the upper and lower sleeve seals to form a seal over the inlet section to prevent passage of fluid through the inlet; and
wherein the diameter of the internal bore of the wet connect tubular member is sufficient to permit the passage of a retrievable ESP tool or other downhole tool therethrough or within.