Shell Oil Comapny

Cornelis Pieter Hamelink

Guy Lode Magda Maria Verbist

Jochem Okke Boer

Ernesto Rafael Fonseca Ocampos

Mauricio Jose Farinas Moya

Gerardus Johannes Leonardus Van Der Wegen

Jany Birgitta Maria Antens

Prasad Baloo Kerkar

Jeffrey Maloy Noe

Gyula Imre Dreisziger

Benjamin Mowad

Claudia Jane Hackbarth

Denka Georgieva Hristova

Peter Liam Brett

Jesper Van Der Horst

Robertus Hermannes Johannes Jozef Haverkort

Henricus Lambertus Maria Van Selst

Guy Lode Verbist

Gerardus Johannes Van Der Wegen

Robertus Hermannes Haverkort

Henricus Lambertus Van Selst

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

Method of reducing the odor of sulphur-bound products, in particular modified sulphur or sulphur concrete, comprising contacting the sulphur-bound products with a bleaching agent, like e.g. sodium hydrochloride or hydrogen peroxide. The resulting sulphur-bound products emit reduced levels of sulphur-containing gases such as HS and SOand have a reduced odor.

Method of reducing the odour of sulphur-bound products

The present invention provides a sulphur cement precomposition, comprising sulphur and at least a polysulphide-containing organosilane in an amount of at least 0.3 wt % based on the weight of the total composition, which polysulphide-containing organosilane is of the general molecular formula: (X3Si)mH(2n+l&#x2212;m)Cn-Sa-Cn'H(2n&#x2032;+l&#x2212;m&#x2032;)(SiX&#x2032;3)m&#x2032; wherein a is an integer in the range of from 2 to 8, X and X&#x2032; each are, independently, a hydrolysable group, n and n&#x2032; each are, independently, an integer in the range of from 1 to 4, and m and m&#x2032; each are, independently, an integer in the range of from 1 to (2n+1).

Sulphur cement pre-composition and process for preparing such sulphur cement pre-composition

The invention provides modified sulphur comprising sulphur and a polysulphide-containing organosilane in an amount of in the range of from 0.3 to 25 wt % based on the weight of sulphur, in which modified sulphur the combined amount of sulphur and polysulphide-containing organosilane make up in the range of from 90 to 100 wt % of the obtained modified sulphur and wherein the polysulphide-containing organosilane is of the general molecular formula (1): (XSi)HCn-Sa-Cn'H(SiX&#x2032;); wherein a is an integer in the range of from 2 to 8, X and X&#x2032; each are, independently, a hydrolysable group, n and n&#x2032; each are, independently, an integer in the range of from 1 to 4, and m and m&#x2032; each are, independently, an integer in the range of from 1 to (2n+1). The invention further provides a process for preparing such modified sulphur, a sulphur cement product comprising the modified sulphur and a process for preparing such.

Modified sulphur and product comprising modified sulphur as binder

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Amsterdam, Netherlands

Cornelis Pieter Hamelink