Schlumberger Technology Corporation

Adam Cygan

Stephen Parks

Adriaan Gisolf

Christopher Del Campo

Todor K Sheiretov

Jean-Michel Hache

Mark Milkovisch

Steven E Buchanan

Thomas Pfeiffer

Warren E Askew

Richard Dan Ward

Benjamin Jean Yvon Durand

Joseph Matthew Casassa

Maxim Klyuzhev

Hugues Dupont

Bo Yang

David Engel

Adame Kante

Juan Jose Jaramillo

Juan Miguel La Rotta Marin

Gokhan Erol

Alien Ugalde

Christopher Irvine

Thomas Murray

Maxim Gurevich

Michael Vince

Systems and methods for downhole tubular cutting applications can include a cutting tool that with a cutting head, an anchor module, and a hydraulic module that actuates both. Arms of the anchor module open to an inner surface of a tube prior to blades of the cutting head opening to the inner surface. The blades can be operated by a piston. The piston can include a detent that travels across an actuation profile. This can allow a processor to track the cutting position. The processor can adjust the rotational speed of the blades based on feedback from the system.

Downhole tool for automatic tubular cutting

An inflatable packer assembly configured to be conveyed within a wellbore. The inflatable packer assembly includes a mandrel having a flowline, a first packer ring slidably connected with the mandrel, a second packer ring fixedly connected with the mandrel, a latching mechanism fluidly connected with the flowline, and an inflatable packer fluidly connected with the flowline. The inflatable packer may be disposed around the mandrel and sealingly connected with the first and second packer rings. The inflatable packer may be operable to expand against a sidewall of the wellbore upon receiving a fluid from the flowline. The latching mechanism may be operable to limit movement of the first packer ring with respect to the mandrel, and permit the movement of the first packer ring with respect to the mandrel upon being actuated by the fluid from the flowline.

Inflatable downhole packer tool

Apparatus and methods for filling a pressure compensated fluid container with a liquid. An example method includes restraining movement of a piston slidably disposed within the fluid container in a first piston position, wherein the piston divides the fluid container into first and second portions. The method further includes pumping the liquid into the first portion to compress gas located within the first portion, stopping the pumping of the liquid into the first portion, and stopping the restraining of movement of the piston to permit the piston to move to a second piston position due to expansion of the gas compressed within the first portion.

Pressurized chamber management

A downhole coring tool conveyable within a borehole extending into a subterranean formation, wherein the downhole coring tool comprises a housing, a hollow coring bit extendable from the housing, a first motor operable to rotate the coring bit, and a second motor operable to extend the coring bit into the subterranean formation through a sidewall of the borehole in a direction not substantially parallel to a longitudinal axis of the borehole proximate the downhole coring tool. A static sleeve disposed in but rotationally independent of the coring bit receives a portion of a core sample of the formation resulting from extension of the coring bit into the formation. The static sleeve comprises a protrusion extending radially inward toward the core sample sufficiently to mark the core sample.

Downhole coring tools and methods of coring

Growing community of inventors

Sugar Land, TX, United States of America

Adam Cygan