Halliburton Energy Services, Inc.

Tamal Kumar Sen

Sandip Prabhakar Patil

Ganesh Shriniwas Pangu

Samuel Jason Lewis

Lonnie Carl Helms

Sam Jason Lewis

Sheetal Singh

Venkata Gopala Rao Palla

Vaishali Mishra

Shreya Mohan

Rahul Nandkumar Jadhav

Maithili Ashok Dumbre

A method of treating a well comprising introducing a well treatment fluid into the well, and a well treatment fluid, are provided. The well treatment fluid comprises an aqueous base fluid, sepiolite clay, and a polymer component selected from the group of an acryloylmorpholine polymer, a polyvinylpyrrolidone polymer, and mixtures thereof. In one embodiment, for example, the method is a method of drilling a well. In this embodiment, the well treatment fluid is a drilling fluid.

Downhole high temperature rheology control

A shoe for use with a casing string in a borehole. The shoe may include a first screen positioned within a bore of the shoe or of the casing string near the shoe. The first screen may include orifices sized to prevent the passage of lost circulation material or a material with properties similar to the lost circulation material from outside the shoe through the first screen.

Systems and methods for indicating completion of a reverse cementing operation

Described herein are plugging materials with polysaccharides that can be used in wellbore operations. A plugging material can include hydraulic cement, amorphous silica, polysaccharides, a retarder, clay, and an aqueous base, where the material is injectable into a wellbore. The polysaccharides can be cross-linked with borate. The retarder can be at least one of an organo phosphoric acid, a modified sulfonated styrene-maleic anhydride polymer, lignosulfonate, or a polyacrylic acid.

Polysaccharide lost circulation materials for wellbore operations

A variety of systems, methods and compositions are disclosed, including, in one method, a method of cementing may comprise: providing a cement composition comprising a hydraulic cement, water, and a functionalized polyethyleneimine retarder; placing the cement composition in a selected location; and allowing the cement composition to set.

Functionalized polyalkyleneimine cement retarder

A system for use in performing a reverse cementing operation in a downhole well operation and creating a sectional separation within a well casing and a process completion indicator. The system comprising a well casing, and a magnetic element, and a plurality of magnetizable particles. The magnetic element is coupled with a radial, interior section of the well casing and the plurality of magnetizable particles couple with the magnetic element forming an impediment between a first and second section of the well casing. The impediment creates a detectable resistive force. The magnetizable particles and the at least one magnet form a contiguous and porous wall and the resistive force creates a pressure spike at a surface of the well in response to the interaction of a cement slurry pumped into an annulus of a wellbore and the wall.

System and device for use in performing reverse-cementing operations in downhole well environments

A method cementing a well is provided. The method includes the use of hydraulic cement composition that includes a set time control additive. The set time control additive includes a water soluble calcium salt such as calcium nitrate, a water soluble chloride salt such as sodium chloride, and a hydroxy carboxylic acid.

Set time control for long column cement slurries

A method of treating a well that includes introducing a well treatment fluid into the well, and a well treatment fluid, are provided. The well treatment fluid comprises an aqueous base fluid, a bridging agent, a viscosifying agent, and a water soluble, biodegradable graft copolymer. In one embodiment, for example, the method is a method of cementing a casing in a well. In this embodiment, the well treatment fluid is a cement spacer fluid.

Well treatment fluid having biodegradable fluid loss control agent

A method of servicing a wellbore penetrating a subterranean formation, comprising: placing a wellbore servicing fluid (WSF) into the wellbore, wherein the WSF comprises a first polymer, a second polymer, and water, wherein the first polymer is formed by polymerizing monomers comprising three of 2-Acrylamido-2-methyl propane sulfonic acid (AMPS), N,N-dimethylacrylamide (NNDMA), acrylamide, N-vinylacetamide, allyloxy-2-hydroxy propane sulfonic acid (AHPS), acrylic acid (AA), 2-acrylamido-2-tert.-butyl sulfonic acid (ATBS), or N,N-Dimethylaniline, and the second polymer is formed by polymerizing monomers and/or crosslinkers comprising AMPS, vinylpyrrolidinone, pentaerythritol allyl ether, and methylenebisacrylamide, wherein in the vinylpyrrolidinone, the 2-Pyrrolidone group can be substituted by a heterocyclic group, comprising one or more Z membered rings with Y heteroatoms, wherein Z is equal to or greater than three, and wherein Y is equal to or greater than one.

Growing community of inventors

Kolkata, India

Tamal Kumar Sen