IP Library Granted Patent US 9,638,021
Granted Patent B2
US 9,638,021 · App. 14/093,516 · Granted May 2, 2017

Pump deployment via cable

Inventors: Joseph Varkey (Sugar Land, TX); Sheng Chang (Sugar Land, TX)
Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
E21B44/005E21B17/206E21B19/084E21B33/08E21B34/06E21B43/128E21B47/124
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Quick Facts
Patent No.
US 9,638,021
App. No.
14/093,516
Granted
May 2, 2017
Kind
B2
Abstract

A method can include providing a pump connected to a power cable with a smooth surface; providing a stuffing box with a valve configured to form a seal with the smooth surface of the power cable in a closed state and to form a passage for the pump as connected to the power cable in an open state; providing a lubricator; providing a blow-out protector with a valve configured to form a seal with the smooth surface of the power cable in a closed state and to form a passage for the pump as connected to the power cable in an open state; and controlling the states of the valves while lowering the pump via the power cable through the stuffing box, the lubricator, and the blow-out protector to position the pump into a bore of a well. Various other apparatuses, systems, methods, etc., are also disclosed.

Claims (15)

1. A method comprising:

providing a pump connected to a power cable that comprises a smooth polymeric surface;

providing a stuffing box that comprises a valve configured to form a seal with the smooth polymeric surface of the power cable in a closed state and to form a passage for the pump as connected to the power cable in an open state;

providing a lubricator that comprises a passage to accommodate the pump as connected to the power cable;

providing a blow-out protector that comprises a valve configured to form a seal with the smooth polymeric surface of the power cable in a closed state and to form a passage for the pump as connected to the power cable in an open state;

controlling the states of the valves while lowering the pump via the power cable through the stuffing box, the lubricator, and the blow-out protector to position the pump in a bore of a well; and

wherein the pump is monitored via a sensor and further comprising sensing information using the sensor.

2. The method of claim 1 comprising sensing information using the sensor while lowering the pump.

3. The method of claim 2 further comprising controlling the states of the valves based at least in part on the information.

4. The method of claim 1 wherein controlling the states of the valves while lowering the pump comprises at least one member selected from a group consisting of maintaining an open state, maintaining a closed, transitioning from a closed state to an open state and transitioning from an open state to a closed state.

5. The method of claim 1 wherein lowering the pump comprises moving the pump, halting the pump and moving the pump.

6. The method of claim 1 wherein lowering the pump terminates upon contacting the pump with a structure in the bore of the well.

7. The method of claim 1 wherein the well comprises a live well that comprises a well pressure in excess of an ambient pressure.

8. The method of claim 7 comprising isolating a portion of the power cable between the blow-out protector and the stuffing box.

9. The method of claim 7 wherein, where the blow-out protector valve is in the open state, the stuffing box valve is in the closed state to provide a pressure barrier.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 3, 2013
From: VARKEY, JOSEPH; CHANG, SHENG
To: SCHLUMBERGER TECHNOLOGY CORPORATION
Reel/Frame 031709/0563 →
Continuity (2)
Provisional Application 61735156 · Dec 10, 2012
Related Publication 20140158380A1 · Jun 12, 2014