Schlumberger Technology Corporation

Services Petroliers Schlumberger

Michael Underbrink

Kameron Lee Klauber

James Rounding

Martin Hernandez

Carlos Moreno

Oguzhan Guven

Laurent Alteirac

Yann Dufour

Susan Wu

Farhan Ahmed Omer

Joao Mendonca

Kaiyang Kevin Liew

Zachary Gortowski

Amanda Halbert

Nicholas Thomas

A non-pressure sensitive ('NPS') module. The NPS module may include a mandrel, a lug assembly, a release sleeve, and a retention mechanism. The mandrel may have fluid pathways that balance pressure uphole of the mandrel and downhole of the mandrel when the NPS module is positioned within the borehole. The lug assembly may extend at least partially through the mandrel, a lug of the lug assembly extendable through a port in the liner hanger to prevent setting of the liner hanger when the lug assembly is in a run-in position. The release sleeve may be coupled to the lug assembly and operable to shift the lug assembly from a run-in position to an intermediate position that allows the liner hanger to be set. The retention mechanism may be operable to prevent the lug assembly from shifting to a retracted position until run-in tool is pulled uphole.

Non-pressure sensitive module for liner hanger installation

A technique facilitates deploying and setting a liner hanger assembly while securely retaining liner hanger slips during running-in-hole. The liner hanger assembly may comprise a variety of components such as a mandrel, a cone, a plurality of slips, a retention ring, and an actuator. The slips may each be configured with an upper retention end and a lower retention end having a plurality of angles which interlock with corresponding angles of the cone and the retention ring. Additionally, a portion of the actuator may be sized to slide over an axial end of the retention ring to prevent inadvertent decoupling of the slips after installing the slips along the exterior of the cone.

Liner hanger slip retention system and method

A system for use in a well includes a liner hanger including a mandrel, a cone mounted about the mandrel, the cone having tapered slips, a plurality of tapered slips slidably received in the tapered slots, each tapered slip of the plurality of tapered slips comprising a plurality of teeth, wherein each tapered slip of the plurality of tapered slips and the corresponding tapered slot includes a setting ramp, and a loading ramp separate from the setting ramp, and an actuator mounted about the mandrel to selectively shift the plurality of tapered slips between a radially contracted position and a radially expanded, set position.

Slip package with improved initial setting

A system includes rotational ball seat (RBS), remote operated, and electrical/hydraulic sections. The RBS section includes a spring, a first internal sleeve, and an upper RBS. The remote operated section includes a lower rotational ball valve (RBV) disposed between second and third internal sleeves, and a setting sleeve operatively connected to the lower RBV. During miming-in-hole, the upper RBS is in a restricted position, and the lower RBV is in an open position. The spring compresses the internal sleeves, which sandwich the upper RBS and the lower RBV, until a shear event occurs. An inner diameter of the system closes to facilitate setting of hydraulic equipment. Thereafter, the shear event releases the spring, thereby pushing the internal sleeves, the upper RBS, and the lower RBV downhole, which rotates the upper RBS and the lower RBV into open positions, thereby opening the inner diameter of the system.

Dual ball seat system

An electronic trigger system includes a longitudinal housing including detection, electronics, and actuation sections disposed therein. The detection section includes a pressure sensor for receiving a predetermined pressure signal, and an electronic control board including at least one battery is disposed in the electronics section. The actuation section includes a prefill chamber, a setting piston disposed in the prefill chamber, an actuation device, an atmospheric chamber, and a pressure port. A predetermined amount of prefilled fluid at hydrostatic pressure is trapped between the setting piston and the actuation device in the prefill chamber. The actuation device isolates the prefilled fluid at hydrostatic pressure in the prefill chamber from the atmospheric chamber. Actuation occurs when, upon receipt of the predetermined pressure signal by the pressure sensor, the electronic control board transmits power to the actuation device, causing the prefilled fluid to flow through the actuation device and into the atmospheric chamber.

Electronic rupture disc with atmospheric chamber

A technique facilitates use of a liner hanger in a borehole. A port free hydraulic unibody system including an outer structure having a tubing hanger portion and a packer portion mounted about a mandrel may be constructed so as to avoid the creation of leak paths. A seal system may be employed between the mandrel and the surrounding outer structure to ensure sealing engagement therebetween. The mandrel has a port free section on the downhole side of the seal system, and this port free section is maintained during, for example, actuation of the tubing hanger portion so as to prevent formation of leak paths. An actuator may be located along the mandrel and may be configured to initiate actuation of hanger slips mounted along the tubing hanger portion. An anti-preset mechanism positioned along the mandrel works in cooperation with the actuator to prevent premature actuation of the hanger slips.

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Eureka, MO, United States of America

Michael Underbrink