Henkel Kommanditgesellschaft Auf Aktien

Halliburton Energy Services, Inc.

Cognis Deutschland Gmbh & Co. Kg

Emery Oleochemicals Gmbh

Baroid Limited

E. Epple & Co. Gmbh

Other

Cognis Oleochemicals Gmbh

Phrikolat Chemische Erzeugnisse Gmbh

Heinz Mueller

Claus-Peter Herold

Stephan Von Tapavicza

Johann F Fues

Nadja Herzog

Adolf Asbeck

Thomas Foerster

Juan C Wuhrmann

Frank Burbach

Douglas J Grimes

Michael Neuss

Marcus Claas

Jeff Kirsner

Gerhard Stoll

Johann-Friedrich Fues

Karl-Dieter Brands

Jochen Heidrich

Kimberly Jo Burrows

Heinz Boettcher

Stuart P Smith

Jean-Marc Braun

Ansgar Behler

Karl Heinz Schmid

Bernd Fabry

Hans-Christian Raths

Holger Tesmann

Alfred Westfechtel

Wolfgang Von Rybinski

Klaus Schumann

Rita Koester

Claus Nieendick

Peter Kuhm

Winfried Wichelhaus

Theodor Altenschoepfer

Wolfgang Breuer

Berthold Schreck

Rainer Jeschke

Matthias Fies

Wolfgang Zoellner

Andreas Heidbreder

Hans Dolhaine

Frank Bongardt

Stefan Podubrin

William Chrys Scoggins

Frank Wangemann

Margarete Gruenert

Hans U Hempel

Karl Dieter Brands

Diana Maeker

Stefan Von Tapavicza

Jens Hartmann

Willy Opitz

Edmund Edel

Klaus-Peter Herold

Helmut Edel

Malcolm Ellice

Stephan Von Tapavizca

Stephan Van Tapavizca

Claus P Herold

The invention relates to a process of cleaning boreholes, boring equipment and borings with an aqueous cleaning of one more lithium salts of alkyl sulfates of formula (I):R&#x2014;O&#x2014;SOLi&#x2003;&#x2003;(I)in which R is a saturated, unsaturated, branched or linear alkyl group containing 8 to 22 carbon atoms, preferably the lithium salts of alkyl sulfates are comprised of a mixture of those in which R is a saturated, linear alkyl groups having 8 to 14 carbon atoms.

Lithium salts of fatty alcohol sulphates for cleaning boreholes, boring devices and borings

A well servicing composition containing an aqueous phase and an oil phase and an ether carboxylic acid of the formula:RO(CHCHO)(CHCHRO)CH&#x2014;COOXwherein, R is a saturated or unsaturated, branched or unbranched alkyl or alkenyl group containing 6 to 22 carbon atoms, x is a number from 1 to 20 and y is 0 or a number from 1 to 20, provided that the sum of x and y is at least 1 and at most 25, Ris an alkyl group containing 1 to 4 carbon atoms and X comprises at least one member selected from the group consisting of a hydrogen atom, monovalent cations and polyvalent cations.

Borehole treating substance containing ether carboxylic acids

The invention relates to a borehole treatment composition containing an aqueous phase and a non-aqueous oil phase, emulsifiers and, where appropriate, further customary additives, the non-aqueous oil phase containing at least one of

Borehole treatment agent containing low-toxic oil phase

A method of reducing the viscosity of invert emulsions and oil-based drilling fluids and well service fluids comprising such emulsions over a broad temperature range is disclosed. The method comprises adding to said invert emulsions of the invention a non-ionic surfactant alone or in combination with a co-thinner having the formula: R&#x2033;&#x2033;&#x2014;(CHO)(CHO)(CHO)&#x2014;H where R&#x2033;&#x2033; is a saturated or unsaturated, linear or branched, alkyl radical having about 8 to about 24 carbon atoms, n is a number ranging from about 1 to about 10, m is a number ranging from about 0 to about 10, and k is a number ranging from about 0 to about 10. The non-ionic surfactant is a reaction product of ethylene oxide, propylene oxide and/or butylene oxide with Ccarboxylic acids or Ccarboxylic acid derivatives containing at least in position 9/10 and/or 13/14 structural units of general formula (I) where Ris a hydrogen atom or an OH group or a group OR. Ris an alkyl group of about 1 to about 18 carbon atoms, an alkenyl group of about 2 to about 18 carbons atoms, or a group of the formula (II): Ris a hydrogen atom, an alkyl group of about 1 to about 21 carbon atoms or an alkylene group or 2 to 21 carbon atoms. 

Thinners for invert emulsions

A method of reducing the viscosity of oil-based drilling fluids and well service fluids at low temperatures and a thinner compound for use in such drilling fluids and well service fluids is disclosed. The method comprises adding to said drilling fluids or well service fluids a thinner having the formula:R&#x2014;(CHO)(CHO)(CHO)-Hwhere R is a saturated or unsaturated, linear or branched alkyl radical having about 8 to about 24 carbon atoms, n is a number ranging from about 1 to about 10, m is a number ranging form about 0 to about 10, and k is a number ranging from about 0 to about 10.

A process for imparting lubricity to an aqueous drilling fluid used in geological exploration involving: (a) providing an aqueous drilling fluid; (b) providing a lubricant component containing a partial glyceride of predominantly unsaturated fatty acids having from about 16 to 24 carbon atoms; and (c) introducing the partial glyceride into the aqueous drilling fluid.

Lubricants for drilling fluids

The invention relates to the use of linear and/or branched fatty alcohols containing at least 12 carbon atoms in the molecule and/or to the use of mixtures of such fatty alcohols with carboxylic acid esters as a lubricating additive in water-based drilling fluids for their use in geological exploration by drilling. The fatty-alcohol-based lubricants or lubricant systems are particularly suitable for use in water-based alkali metal silicate drilling muds which are known to be distinguished by comparatively high pH values. The additives according to the invention combine their lubricating effect with a foam-suppressing effect, i.e. prevent unwanted foaming.

Use of selected fatty alcohols and their mixtures with carboxylic acid esters as lubricant components in water-based drilling fluid systems for soil exploration

The use is disclosed of at least substantially water-insoluble ethers which are fluid and/or at least plastically deformable at working temperature and have flash points of at least 80&deg; C., of mono- and/or polyfunctional alcohols of natural and/or synthetic origin or corresponding solutions of such ethers in ecologically acceptable water-insoluble oils as the dispersed oil phase of water-based O/W-emulsion drilling fluids which are suitable for the environmentally acceptable development of geological formations and which contain, if desired, insoluble, finely particulate weighting agents for the formation of water-based O/W-emulsion drilling muds and/or further additives, such as emulsifiers, fluid-loss additives, wetting agents, alkali reserves and/or auxiliary substances for the inhibition of drilled rock of high water-sensitivity.

Use of selected oleophilic ethers in water-based drilling fluids of the O/W emulsion type and corresponding drilling fluids with improved ecological acceptability

Low-foam surfactant concentrates for use in the domain of plant growth stimulation

A process for cleaning boreholes, drilling equipment and drill cuttings is presented involving the application of a cleaning composition to surfaces and the subsequent removal of the cleaning composition and soils. The cleaning composition contains a cleaning additive having alkoxylation products obtained by the reaction of ethylene oxide, propylene oxide, butylene oxide or mixtures thereof with an OH-containing C,carboxylic acid or derivative thereof, where structural units corresponding to formula (I):

Use of biodegradable alcoxylation products for cleaning boreholes, boring instruments or borings

Multiphase lubricant concentrates for use in water based systems in the field of exploratory soil drilling

The invention relates to the use of oil-soluble oleophilic organic liquid phases&mdash;flowable at temperatures of 0 to 10&deg; C.&mdash;from the classes of corresponding monocarboxylic and/or polycarboxylic acid esters, carbonic acid esters, fatty alcohols and their oligoalkoxides and/or ethers as the at least predominant part of the liquid phase in storage-stable homogeneous mixtures with guar and/or water-soluble guar derivatives for their use in water-based borehole servicing fluids.

Aqueous swellable compositions of guar gum and guar gum derivatives in oleophilic liquids and their use

Process for the facilitated waste disposal of working substances based

Method of boosting surface consolidation of soil threatened by erosion

The invention relates to flowable and pumpable multicomponent mixtures based on a multiphase mixture of water and oil containing emulsifiers and, if desired, other soluble, emulsifiable and/or dispersible auxiliaries for their use in exploration by drilling and/or for the further treatment of the wells thus drilled. The invention is characterized by the use of emulsifiers or emulsifier systems which, in the particular multicomponent mixture in question, lead to temperature-controlled phase inversion at a phase inversion temperature (PIT) in a temperature range of which the upper limit is so far below the working temperature of the multicomponent mixture in geological exploration that the water-based part of the multicomponent mixture is present as a disperse (invert) phase in the continuous oil phase (w/o invert emulsion) while the lower limit of this temperature range enables the multicomponent mixture to be converted into an o/w emulsion with a continuous aqueous phase. At least partly nonionic emulsifiers or emulsifier systems with a PIT of 0 to 100.degree. C. are particularly suitable. The invention enables the requirements in regard to technical performance, ecological compatibility and cost/effectiveness ratio to be optimally satisfied.

Multicomponent mixtures for use in geological exploration

Growing community of inventors

Monheim, Germany

Heinz Mueller