Shell Oil Comapny

Rocsol Technologies Inc.

Ernesto Rafael Fonseca Ocampos

John Michael Karanikas

Antonio Maria Guimaraes Leite Cruz

Mauricio Jose Farinas Moya

Benjamin Mowad

Prasad Baloo Kerkar

Damodaran Raghu

Jeffrey Maloy Noe

David Paul Brisco

Ronald Marshall Bass

Guy Lode Magda Maria Verbist

Scott Vinh Nguyen

Duncan Charles Macdonald

Ernest E Carter, Jr

Jaime Santos Son

Geir Hareland

Justin Michael Noel

Cornelis Pieter Hamelink

Mikhail Boris Geilikman

Jochem Okke Boer

Gerardus Johannes Leonardus Van Der Wegen

Jason Andrew Horwege

Renfeng Richard Cao

Mohamad Fereydoon Khodaverdian

Sau-Wai Wong

James Joseph Venditto

Peter Liam Brett

Claudia Jane Hackbarth

Jesper Van Der Horst

Robert Dale Smith

Joddie Joseph Carlile

Manuel Alberto Gonzalez

Henricus Lambertus Maria Van Selst

Gonghyun Jung

Jorge Antonio Penso

Robertus Hermannes Johannes Jozef Haverkort

Stephen Michael Levy

Rock strength is estimated during drilling using a rate of penetration model or a modified mechanical specific energy models. The rock strength estimate can be used in conducting further drilling, for example by a drilling system. Drilling parameters may be altered as a result of determining rock strength, for example to avoid undesirable trending fractures, such as extensive vertical fractures.

Drilling system

A method of treating a subterranean formation via well bore may include introducing a plurality of particles into the subterranean formation via the well bore, each particle having a substrate and a layer of cement on the substrate. The cement may be in a state of suspended hydration and the method may include introducing moisture to the subterranean formation via the well bore. The method may also include allowing the particles and the moisture to contact one another. Contact between the particles and the moisture may cause the cement to move from a state of suspended hydration to a state of secondary hydration.

Methods of making and using cement coated substrate

A method for underdisplacing fracture proppant in a well bore. The method can include providing a set retainer having a passage configured to receive a wiper plug. The method may also include installing the set retainer in the well bore and injecting a proppant-laden fluid into the well bore, through the passage of the set retainer and through a perforation to create the fracture. The method may include providing a wiper plug configured to be received in the passage of the set retainer. The method may also include inserting the wiper plug into the well bore and allowing the wiper plug to wipe a portion of the proppant-laden fluid past the set retainer and into the fracture. Additionally, the method may include allowing the set retainer to receive the wiper plug.

Method to underdisplace hydraulic fractures in horizontal or deviated well

A method for accommodating thermal expansion of a heater in a formation includes flowing a heat transfer fluid through a conduit to provide heat to the formation and providing substantially constant tension to an end portion of the conduit that extends outside the formation. At least a portion of the end portion of the conduit is wound around a movable wheel used to apply tension to the conduit.

Thermal expansion accommodation for circulated fluid systems used to heat subsurface formations

A method is provided to produce hydrocarbons from a formation, the method includes the steps of: placing a pair of electrodes within a formation; applying differential voltages between pairs of electrodes wherein the voltage differences between the electrodes is greater than at least 10,000 volts; and producing hydrocarbons from the formation or an adjacent formation wherein the formation has an initial permeability of less than ten millidarcy. The invention also includes an apparatus effective to release pulses of electrical energy into the formation as this frequency and voltage at least until the formation has reached a point where the electrical potential arcs from one electrode to at least one other electrode.

Electrofracturing formations

Systems and methods for treating a subsurface formation are described herein. Some embodiments generally relate to systems, methods, and/or processes for treating fluid produced from the subsurface formation. Some methods include providing heat to a first section of the hydrocarbon containing formation from a plurality of heaters located in the formation; allowing the heat to transfer from the heaters to heat a portion of the first section to mobilize formation fluid; and producing formation fluid from the formation.

Methods for heating with slots in hydrocarbon formations

A method for heating a subsurface formation includes applying heat from a plurality of heaters to at least a portion of the subsurface formation. A portion of one or more of the heaters are allowed to move relative to the heaters respective wellhead using sliding seals to accommodate thermal expansion of the heaters.

Circulated heated transfer fluid systems used to treat a subsurface formation

Growing community of inventors

Houston, TX, United States of America

Ernesto Rafael Fonseca Ocampos