Schlumberger Technology Corporation

Mohan Kanaka Raju Panga

Christopher Daeffler

Valerie Gisele Helene Lafitte

Jazmin Godoy-Vargas

Andrey Yakovlev

Changsheng Xiang

Dominic Joseph Brady

Chad Kraemer

Maxim Pavlovich Yutkin

Philippe Enkababian

Xiangdong Qiu

Dmitriy Usoltsev

Konstantin Viktorovich Vidma

Bernhard Rudolf Lungwitz

John Thomas Mayo

Olga Vladimirovna Nevvonen

Sergey Vladimirovich Semenov

Xuehao Tan

Giselle Refunjol

Anna Dunaeva

Zachary McCathran

Sergey Sergeevich Skiba

Geza Horvath Szabo

Richard Berry

Yiyan Chen

Li Jiang

Wael Abdallah

Richard Donald Hutchins

Sergey Makarychev-Mikhailov

Anthony Loiseau

Stephen Davies

Fedor Nikolaevich Litvinets

Denis Viktorovich Bannikov

Hassan Chaabouni

Jack Li

Alexey Vladimirovich Alekseev

Ksenia Mikhailovna Kaprielova

Kong Teng Ling

Kira Vladimirovna Yudina

Jacob M Kariampally

Merlyn Xavier Pulikkathara

Danil Sergeyevich Pantsurkin

Andrey Vladimirovich Yakovlev

Courtney Payne

Chidi Eugene Nwafor

Annie Yi Sun

Karina Bagdasarova

Tausif Khizar Ahmed

Olga Nevvonen

Ziad Al-Jalal

Jacob Kariampally

Described herein are methods for treating a subterranean formation penetrated by a wellbore with a retarded acidizing fluid containing an acid and an acid retarding agent, the concentrations of which are adjusted based on measured parameter values of the formation. Also described is a method for treating a subterranean formation by introducing an acid to the formation following the introduction of an acid retarding agent to the formation. Also described is a method for acid fracturing a subterranean formation including reducing the concentration of an acid retarding agent contained in a retarded acidizing fluid over the course of the acid fracturing operation.

Methods for making and using retarded acid compositions for well stimulation

Methods include pumping a fracturing pad fluid into a subterranean formation under conditions of sufficient rate and pressure to create at least one fracture in the subterranean formation, the fracturing pad fluid including a carrier fluid and a plurality of bridging particles, the bridging particles forming a bridge in a fracture tip of a far field region of the formation. Methods further include pumping a first plurality of fibers into the subterranean formation to form a low permeability plug with the bridging particles, and pumping a proppant fluid comprising a plurality of proppant particles.

Proppant-fiber schedule for far field diversion

Described herein is a multi-phase aqueous composition containing a surfactant; a first phase comprising water, an acid, and a water-soluble acid retarding agent; and a second phase selected from the group consisting of an immiscible organic phase, a gas, and combinations thereof. Further described are methods of making and using such compositions.

Emulsions containing water-soluble acid retarding agents and methods of making and using

A fracturing fluid may include an aqueous base fluid; a proppant material; and hydrophilic fibers having a length of about 250 microns to 10 millimeters. A method of performing a fracturing operation may include injecting a fracturing fluid comprising hydrophilic fibers having a length of about 250 microns to 10 millimeters and proppant into a wellbore.

Fracturing fluids containing hydrophilic fibers

Methods of treating a subterranean formation include forming a treatment fluid including a hydrophilic fiber coated with a water soluble polymer and a crosslinking agent.

Crosslinking of cellulose fibers

Described herein are aqueous composition(s) containing water; a viscoelastic surfactant; an acid; and a water-soluble acid retarding agent. Further described are methods of making and using such compositions.

Diversion acid containing a water-soluble retarding agent and methods of making and using

An aqueous solution is disclosed including water, an acid, a nitrogen-containing compound, and a functionalizing agent (FA), which can be a ketone, diketone, aldehyde, dialdehyde, organic acid, and combinations thereof. An additional aqueous solution is disclosed including water, an acid, and an acid neutralizing agent which can be a reaction product of at least a portion of the nitrogen-containing compound and the functionalizing agent. Methods of treating a formation are also disclosed including treating a formation fluidly coupled to a wellbore with an oilfield treatment fluid comprising either or both of the aqueous solutions.

Aqueous solution and method for use thereof

A method is described for treating a subterranean formation penetrated by a wellbore including injecting into the formation a treatment fluid including a rheological modifier; at least one viscoelastic surfactant (VES) at a concentration of between about 0.1 and about 10 percent by weight; and a formation-dissolving agent selected from the group consisting of hydrochloric acid, formic acid, acetic acid, lactic acid, glycolic acid, sulfamic acid, malic acid, citric acid, tartaric acid, maleic acid, methylsulfamic acid, chloroacetic acid, aminopolycarboxylic acids, 3-hydroxypropionic acid, polyaminopolycarboxylic acids, salts thereof and mixtures of said acids and salts.

Methods of controlling viscosity of acids

A fluid for treating a subterranean formation includes a solvent, a rheology modifier, and a composition that includes a mixture of cellulose fibers and cellulose nanoparticles. The cellulose nanoparticles have a positive zeta potential in a range of about +100 mV to about +10 mV, and a length in a range of from about 50 nm to about 500 nm, and the cellulose fibers have a length from about 50 microns to about 500 microns.

Fluids containing cellulose fibers and cellulose nanoparticles for oilfield applications

A method of stimulating the inflow of oil and/or gas from the wellbore, in particular, a hydraulic fracturing method, is disclosed. The method of hydraulic fracturing comprises the stages: injecting a slug of a proppant-free fluid through the well into a formation for hydraulic fracture creation and propagation; injecting a slug of proppant-laden slurry into the formation to create a proppant pack in the hydraulic fracture; injecting a slug of slurry that contains a fluid and the polyelectrolyte complex-based proppant aggregates to create permeable channels in the near-wellbore area of the hydraulic fracture; injecting a slug of a displacement fluid into the well. This sequence of operations allows avoiding the proppant slurry overdisplacement deep into the hydraulic fracture, maintaining high fracture conductivity, and increasing the well productivity.

Method for hydraulic fracturing (variants)

Growing community of inventors

Sugar Land, TX, United States of America

Mohan Kanaka Raju Panga