WO2000005322A1 - Polysaccharide-containing well drilling and servicing fluids - Google Patents
Polysaccharide-containing well drilling and servicing fluids Download PDFInfo
- Publication number
- WO2000005322A1 WO2000005322A1 PCT/US1999/010047 US9910047W WO0005322A1 WO 2000005322 A1 WO2000005322 A1 WO 2000005322A1 US 9910047 W US9910047 W US 9910047W WO 0005322 A1 WO0005322 A1 WO 0005322A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fluid
- oligosaccharide mixture
- fluids
- aqueous
- polysaccharide
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/02—Well-drilling compositions
- C09K8/04—Aqueous well-drilling compositions
- C09K8/06—Clay-free compositions
- C09K8/08—Clay-free compositions containing natural organic compounds, e.g. polysaccharides, or derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/02—Well-drilling compositions
- C09K8/04—Aqueous well-drilling compositions
- C09K8/14—Clay-containing compositions
- C09K8/18—Clay-containing compositions characterised by the organic compounds
- C09K8/20—Natural organic compounds or derivatives thereof, e.g. polysaccharides or lignin derivatives
- C09K8/206—Derivatives of other natural products, e.g. cellulose, starch, sugars
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/02—Well-drilling compositions
- C09K8/04—Aqueous well-drilling compositions
- C09K8/26—Oil-in-water emulsions
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/02—Well-drilling compositions
- C09K8/04—Aqueous well-drilling compositions
- C09K8/26—Oil-in-water emulsions
- C09K8/28—Oil-in-water emulsions containing organic additives
Definitions
- the invention relates to fluids used in the drilling and/or servicing of oil and/or gas wells, and particularly drilling fluids, drill-in fluids, workover fluids,
- Such fluids are characterized as having a rheological profile which is shear
- U.S. Patent No. 4.485.020 discloses the preparation of a
- thermostable, viscous xanthan gum solution by heating a xanthan gum solution in
- U.S. Patent No. 4.900.457 discloses that the thermal stability of aqueous polysaccharide solutions can be significantly enhanced by incorporating certain formate salts therein.
- aqueous fluids particularly at low concentrations of soluble salts dissolved therein.
- ELSRV fluids containing aqueous fluids which exhibit an enhanced low shear rate viscosity, which may hereinafter be referred to as ELSRV fluids, is enhanced, and the fluid loss is reduced, by adding to the ELSRV fluid an oligosaccharide mixture
- the oligosaccharide mixture preferably consisting of the water soluble portion of thermally hydrolyzed lignocellulose.
- the ELSRV fluids have a shear thinning index of at least 10,
- thinning characteristics of the fluid preferably at least 20.
- the oligosaccharide mixture also enhances the thermal stability of
- shear rate viscosity such as fluids containing cellulose derivatives. It is an object of this invention to provide a process for enhancing the thermal stability of aqueous polysaccharide-containing fluids as evidenced by the low shear
- compositions can comprise, consist essentially of, or consist of the stated
- the method can comprise, consist essentially of, or consist of the stated
- the oligosaccharide mixture (hereinafter sometimes referred to as "OSM")
- the thermal hydrolysis may be carried out in any one of
- the OSM may also be obtained by acid hydrolysis of lignocelluloses as well as by saccharification of wood.
- the thermal hydrolysis is carried out by charging wood chips to a closed chamber (e.g.,
- water solubles can be concentrated or rendered solid by removing w ater therefrom,
- Water solubles resulting from such hydrolysis of lignocellulose materials as a class are applicable to this invention.
- OSM of this invention made from pine wood is as follows: hexosans and
- pentosans 70% by weight; lignin, 15% by weight: non-sugar carbohydrates, 10% by weight; and gums, 5% by weight.
- the constituents of the OSM will vary somewhat depending on the type of lignocellulose material hydrolyzed and the
- the constituents of the OSM can vary roughly as follows: pentosans and hexosans, 60-80%) by weight; lignin, 5-25% by weight; non-sugar
- hexosans contain primarily from one to about four combined sugar units composed of arabinose, mannose, galactose, glucose, and xylose sugar units.
- Patent No. 2,713,030 that the addition of small amounts of the OSM to clay-water drilling mud systems, such as from about 0.07-1.75 pounds of OSM per 42 gallon
- low shear rate viscosity i.e., the viscosity at less than about one sec " 1 .
- the minimum concentration of the OSM incorporated into the aqueous polysaccharide-containing fluids is that amount, as determined by routine testing,
- the thermal stability can be determined by evaluating other properties of the fluids such as the viscosity at higher shear rates, fluid loss, and the like, and comparing the results
- the concentration of the OSM will be from about 0.7 kg/m 3 (0.25
- the polymers useful in the ELSRV fluids of this invention comprise any water soluble polymer which increases the low shear rate viscosity of the fluid to produce
- biopolymers produced by the action of bacteria, fungi, or other microorganisms on a suitable substrate.
- exemplary biopolymers are the polysaccharides produced
- Patent No. 4,758,356 each incorporated herein by reference.
- Other biopolymers useful in the fluids of this invention are the so-called welan gums produced by fermentation with a microorganism of the genus Alcaligenes. See for example
- Scleroglucan polysaccharides produced by fungi of the genus sclerotium are Scleroglucan polysaccharides produced by fungi of the genus sclerotium.
- polysaccharides are produced by cultivating a slime-forming species of Pesudomonas, Rhizobium, Alcaligenes or Agrobacterium, e.g., Pseudoraonas sp.
- NCIB 11264 Pseudomonas sp. NCIB 11592 or Agrobacterium radiobacter NCIB
- succinoglycan biopolymer is sold by Shell
- cellulose derivatives such as carboxymethyl cellulose, hydroxyethyl
- polysaccharides as are well known in the art.
- Such polysaccharides may increase the viscosity at higher shear rates, decrease the fluid loss, or provide other characteristics to the fluids.
- the minimum concentration of the polymer required to increase the low shear rate viscosity of the fluid can be determined by routine testing.
- concentration will be an amount sufficient to impart to the fluid the desired low shear rate viscosity. Generally the fluids will contain a concentration from about
- the water base borehole fluids of this invention generally will contain
- the fluids may contain one or more viscosifiers or suspending agents in addition to the polysaccharide required, weighting agents, corrosion
- inhibitors soluble salts, biocides, fungicides, seepage loss control additives, bridging agents, deflocculants, lubricity additives, shale control additives, pH
- control additives and other additives as desired.
- the borehole fluids may contain one or more materials which function as
- humic acid salts lignite salts
- hgnosulfonates gums, synthetic water
- the fluids of this invention preferably have a pH in the range from about 7.5 to about 11.5, most preferably from 8 to about 11.
- the pH can be obtained as is well known in the art by the addition of bases to the fluid, such as potassium hydroxide, potassium carbonate, potassium humate, sodium hydroxide, sodium
- the preferred base is magnesium hydroxide.
- this invention significantly enhances the thermal stability of the ELSRV fluids.
- magnesium oxide enhances the thermal stability of
- aqueous fluids containing polysaccharide polymers such as xanthan gum, hydroxy- ethylcellulose, and the like.
- polysaccharide polymers such as xanthan gum, hydroxy- ethylcellulose, and the like.
- the magnesium oxide functions as an alkaline buffer to prevent the pH of the fluid from decreasing appreciably upon
- water soluble potassium compounds can be incorporated into the
- potassium chloride potassium formate, potassium acetate, and the like to fluids to enhance the shale stabilizing characteristics of the fluids.
- the borehole fluids of this invention contains an aqueous phase which may be
- the formulated brine is manufactured by
- soluble salts dissolving one or more soluble salts in water, a natural brine, or sea water.
- Representative soluble salts are the chloride, bromide, acetate and formate salts of potassium, sodium, calcium, magnesium and zinc.
- the fluids may be prepared by mixing with the aqueous phase the desired components in any order, except for the weight material, if used, which is generally added last such that it will remain suspended in the fluid.
- the OSM may be added
- water soluble salts are added to provide a formulated brine aqueous phase, it is
- water soluble salts be added after the other desired components
- the borehole fluid of this invention is circulated within a borehole during well
- the OSM and the polysaccharide viscosifier are mixed together prior to their addition to the aqueous fluid.
- additive mixture will contain from about 0.15 part by weight of the OSM per part of the polysaccharide, to about 15 parts about by weight of the OSM per part of the
- polysaccharide preferably from about 0.3 part by weight of the OSM per part of
- the polysaccharide to about 10 parts by weight of the OSM per part by weight of
- Brookfield Viscometer which is the ratio of the 0.5 rpm viscosity to the 100
- Biopolymer II which is BIOZAN, a product of the Kelco Oil Field Group, Inc.; Bill
- Example 1 Various fluids were prepared as in Example 1. The initial rheology and the
- Example 1 Various fluids were prepared using the procedure set forth in Example 1.
- the fluids contained either Biopolymer I or Biopolymer II, and various concentrations of the OSM, magnesium oxide, or zinc oxide as set forth in Table C.
- the rheology was prepared using the procedure set forth in Example 1.
- the fluids contained either Biopolymer I or Biopolymer II, and various concentrations of the OSM, magnesium oxide, or zinc oxide as set forth in Table C.
- Example 1 Example 1
- Fluids were prepared as in Example 1 containing 4.285 kg/m 3 (1.5 ppb) pf XANVIS xanthan gum (Biopolymer III) and the concentrations of MgO and OSM set forth in Table F. The initial rheology, and the rheology and fluid loss obtained
- Fluids were prepared as in Example 1 containing the concentrations of KELZAN XCD xanthan gum, magnesium oxide, and OSM set forth in Table G.
Abstract
Description
Claims
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU38903/99A AU3890399A (en) | 1998-07-24 | 1999-05-07 | Polysaccharide-containing well drilling and servicing fluids |
EA200100181A EA002815B1 (en) | 1998-07-24 | 1999-05-07 | Polysaccharide-containing oil and gas well drilling and servicing fluids, method of increasing the thermal stability or decreasing the fluid loss of aqueous-base fluids |
DE69922670T DE69922670D1 (en) | 1998-07-24 | 1999-05-07 | POLYSACCHARIDE CONTAINING DRILLING AND MAINTENANCE LIQUIDS |
AT99921783T ATE284936T1 (en) | 1998-07-24 | 1999-05-07 | DRILLING AND SERVICE FLUIDS CONTAINING POLYSACCHARIDE |
CA002338444A CA2338444C (en) | 1998-07-24 | 1999-05-07 | Polysaccharide-containing well drilling and servicing fluids |
EP99921783A EP1114115B1 (en) | 1998-07-24 | 1999-05-07 | Polysaccharide-containing well drilling and servicing fluids |
MXPA01000839A MXPA01000839A (en) | 1998-07-24 | 1999-05-07 | Polysaccharide-containing well drilling and servicing fluids. |
BRPI9912417-3A BR9912417B1 (en) | 1998-07-24 | 1999-05-07 | aqueous based fluid for drilling or maintaining oil or gas wells, and process for improving thermal stability or decreasing fluid loss of an aqueous liquid. |
NO20010384A NO330308B1 (en) | 1998-07-24 | 2001-01-23 | Polysaccharide-containing wellbore and service fluids |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/121,712 | 1998-07-24 | ||
US09/121,712 US5916849A (en) | 1998-07-24 | 1998-07-24 | Polysaccharide-containing well drilling and servicing fluids |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000005322A1 true WO2000005322A1 (en) | 2000-02-03 |
Family
ID=22398358
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1999/010047 WO2000005322A1 (en) | 1998-07-24 | 1999-05-07 | Polysaccharide-containing well drilling and servicing fluids |
Country Status (14)
Country | Link |
---|---|
US (2) | US5916849A (en) |
EP (1) | EP1114115B1 (en) |
AR (1) | AR023029A1 (en) |
AT (1) | ATE284936T1 (en) |
AU (1) | AU3890399A (en) |
BR (1) | BR9912417B1 (en) |
CA (1) | CA2338444C (en) |
DE (1) | DE69922670D1 (en) |
EA (1) | EA002815B1 (en) |
ID (1) | ID27229A (en) |
MX (1) | MXPA01000839A (en) |
NO (1) | NO330308B1 (en) |
OA (1) | OA11587A (en) |
WO (1) | WO2000005322A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10232304A1 (en) * | 2002-07-17 | 2004-02-05 | Henkel Kgaa | Optimal energy neutralization of acids with alkali carriers (especially in detergent production) is effected using a two-shaft mixer and without a spray drying step |
WO2007085983A1 (en) * | 2006-01-25 | 2007-08-02 | Schlumberger Canada Limited | Methods of treating subterranean formations with heteropolysaccharides based fluids |
US7833949B2 (en) | 2005-01-24 | 2010-11-16 | Schlumberger Technology Corporation | Polysaccharide treatment fluid and method of treating a subterranean formation |
US8367589B2 (en) | 2005-01-24 | 2013-02-05 | Schlumberger Technology Corporation | Polysaccharide treatment fluid and method of treating a subterranean formation |
Families Citing this family (47)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6156708A (en) * | 1997-02-13 | 2000-12-05 | Actisystems, Inc. | Aphron-containing oil base fluids and method of drilling a well therewith |
US6123159A (en) * | 1997-02-13 | 2000-09-26 | Actisystems, Inc. | Aphron-containing well drilling and servicing fluids of enhanced stability |
US5881826A (en) | 1997-02-13 | 1999-03-16 | Actisystems, Inc. | Aphron-containing well drilling and servicing fluids |
US6127319A (en) * | 1998-07-24 | 2000-10-03 | Actisystems, Inc. | Oil-in-water emulsion |
US6148917A (en) * | 1998-07-24 | 2000-11-21 | Actisystems, Inc. | Method of releasing stuck pipe or tools and spotting fluids therefor |
US6258755B1 (en) | 1998-12-28 | 2001-07-10 | Venture Innovations, Inc. | Chitosan-containing well drilling and servicing fluids |
EA003014B1 (en) * | 1999-02-09 | 2002-12-26 | эМЭйэСАй ТЕКНОЛЭДЖИС эЛ.эЛ.Си. | Fluid for drilling and servicing a well, method for drilling or servicing a well in a subterranean formation |
CA2381772C (en) * | 1999-07-22 | 2006-05-02 | Schlumberger Technology Corporation | Components and methods for use with explosives |
US6939555B2 (en) * | 2000-01-21 | 2005-09-06 | Helena Holding Company | Manufacture and use of an deposition aid |
US6649571B1 (en) | 2000-04-04 | 2003-11-18 | Masi Technologies, L.L.C. | Method of generating gas bubbles in oleaginous liquids |
US6454005B1 (en) | 2001-03-09 | 2002-09-24 | Clearwater, Inc. | Treating shale and clay in hydrocarbon producing formations with combinations of guar and potassium formate |
US7148183B2 (en) * | 2001-12-14 | 2006-12-12 | Baker Hughes Incorporated | Surfactant-polymer composition for substantially solid-free water based drilling, drill-in, and completion fluids |
EP1499694B1 (en) * | 2002-04-16 | 2010-10-06 | Texas United Chemical Company, LLC. | Viscous oleaginous fluids and methods of drilling and servicing wells therewith |
US7028771B2 (en) * | 2002-05-30 | 2006-04-18 | Clearwater International, L.L.C. | Hydrocarbon recovery |
AU2003256329A1 (en) * | 2002-06-27 | 2004-01-19 | University Of Washington | Use of adhesion molecules as bond stress-enhanced nanoscale binding switches |
JP2004179274A (en) * | 2002-11-26 | 2004-06-24 | Hitachi Ltd | Optical semiconductor device |
US8541051B2 (en) | 2003-08-14 | 2013-09-24 | Halliburton Energy Services, Inc. | On-the fly coating of acid-releasing degradable material onto a particulate |
US7829507B2 (en) | 2003-09-17 | 2010-11-09 | Halliburton Energy Services Inc. | Subterranean treatment fluids comprising a degradable bridging agent and methods of treating subterranean formations |
US7674753B2 (en) | 2003-09-17 | 2010-03-09 | Halliburton Energy Services, Inc. | Treatment fluids and methods of forming degradable filter cakes comprising aliphatic polyester and their use in subterranean formations |
US7833944B2 (en) | 2003-09-17 | 2010-11-16 | Halliburton Energy Services, Inc. | Methods and compositions using crosslinked aliphatic polyesters in well bore applications |
US20050101491A1 (en) * | 2003-11-11 | 2005-05-12 | Vollmer Daniel P. | Cellulosic suspensions employing alkali formate brines as carrier liquid |
US20050101490A1 (en) * | 2003-11-11 | 2005-05-12 | Vollmer Daniel P. | Cellulosic suspensions of alkali formate and method of using the same |
US20060014648A1 (en) * | 2004-07-13 | 2006-01-19 | Milson Shane L | Brine-based viscosified treatment fluids and associated methods |
US7727936B2 (en) * | 2004-07-13 | 2010-06-01 | Halliburton Energy Services, Inc. | Acidic treatment fluids comprising xanthan and associated methods |
US7825073B2 (en) * | 2004-07-13 | 2010-11-02 | Halliburton Energy Services, Inc. | Treatment fluids comprising clarified xanthan and associated methods |
US7727937B2 (en) | 2004-07-13 | 2010-06-01 | Halliburton Energy Services, Inc. | Acidic treatment fluids comprising xanthan and associated methods |
US7648946B2 (en) | 2004-11-17 | 2010-01-19 | Halliburton Energy Services, Inc. | Methods of degrading filter cakes in subterranean formations |
US20080009423A1 (en) | 2005-01-31 | 2008-01-10 | Halliburton Energy Services, Inc. | Self-degrading fibers and associated methods of use and manufacture |
US8598092B2 (en) * | 2005-02-02 | 2013-12-03 | Halliburton Energy Services, Inc. | Methods of preparing degradable materials and methods of use in subterranean formations |
US7662753B2 (en) | 2005-05-12 | 2010-02-16 | Halliburton Energy Services, Inc. | Degradable surfactants and methods for use |
US7541317B2 (en) * | 2005-07-15 | 2009-06-02 | Engineered Drilling Solutions Inc. | Downhole drilling compositions and methods of preparation |
US7713916B2 (en) | 2005-09-22 | 2010-05-11 | Halliburton Energy Services, Inc. | Orthoester-based surfactants and associated methods |
US8329621B2 (en) * | 2006-07-25 | 2012-12-11 | Halliburton Energy Services, Inc. | Degradable particulates and associated methods |
US7686080B2 (en) | 2006-11-09 | 2010-03-30 | Halliburton Energy Services, Inc. | Acid-generating fluid loss control additives and associated methods |
US7544643B2 (en) * | 2006-12-07 | 2009-06-09 | Baker Hughes Incorporated | Viscosity enhancers for viscoelastic surfactant stimulation fluids |
US7893011B2 (en) * | 2007-01-11 | 2011-02-22 | Halliburton Energy Services Inc. | Compositions comprising Sorel cements and oil based fluids |
US7431086B2 (en) * | 2007-01-11 | 2008-10-07 | Halliburton Energy Services, Inc. | Methods of servicing a wellbore with compositions comprising quaternary material and sorel cements |
US7763572B2 (en) * | 2007-01-11 | 2010-07-27 | Halliburton Energy Services, Inc. | Compositions comprising quaternary material and sorel cements |
US7350575B1 (en) * | 2007-01-11 | 2008-04-01 | Halliburton Energy Services, Inc. | Methods of servicing a wellbore with compositions comprising Sorel cements and oil based fluids |
US8220548B2 (en) | 2007-01-12 | 2012-07-17 | Halliburton Energy Services Inc. | Surfactant wash treatment fluids and associated methods |
US9140707B2 (en) * | 2007-08-10 | 2015-09-22 | University Of Louisville Research Foundation, Inc. | Sensors and methods for detecting diseases caused by a single point mutation |
US8006760B2 (en) | 2008-04-10 | 2011-08-30 | Halliburton Energy Services, Inc. | Clean fluid systems for partial monolayer fracturing |
US7906464B2 (en) | 2008-05-13 | 2011-03-15 | Halliburton Energy Services, Inc. | Compositions and methods for the removal of oil-based filtercakes |
US7833943B2 (en) | 2008-09-26 | 2010-11-16 | Halliburton Energy Services Inc. | Microemulsifiers and methods of making and using same |
US8082992B2 (en) | 2009-07-13 | 2011-12-27 | Halliburton Energy Services, Inc. | Methods of fluid-controlled geometry stimulation |
US8287210B2 (en) | 2010-11-17 | 2012-10-16 | Amcol International Corporation | Sub-aqueous placement of water-based suspensions and method of manufacture and use |
CN102643631B (en) * | 2012-04-24 | 2013-10-02 | 山东理工大学 | Method for preparing impervious filtrate reducer for drilling fluid from furfural residue and xylose residue |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2713030A (en) * | 1952-05-17 | 1955-07-12 | Masonite Corp | Drilling mud addition agent |
US2713029A (en) * | 1952-05-07 | 1955-07-12 | Masonite Corp | Drilling mud addition agent |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1824221A (en) * | 1928-10-24 | 1931-09-22 | Masonite Corp | Process and apparatus for disintegration of fibrous material |
US2224135A (en) * | 1936-12-01 | 1940-12-10 | Masonite Corp | Making board products and recovering water solubles from fibrous ligno-cellulose material |
US3065170A (en) * | 1959-07-02 | 1962-11-20 | Jersey Prod Res Co | Drilling fluids for use in wells |
US3953335A (en) * | 1970-12-23 | 1976-04-27 | Jackson Jack M | Magnesia stabilized additives for non-clay wellbore fluids |
US3998742A (en) * | 1972-12-18 | 1976-12-21 | Texaco Inc. | Additive for reducing gel strength in aqueous drilling fluids |
US3988246A (en) * | 1974-05-24 | 1976-10-26 | Chemical Additives Company | Clay-free thixotropic wellbore fluid |
GB1580439A (en) * | 1976-07-29 | 1980-12-03 | British Petroleum Co | Fermentation process for the production of microbial biomass and a hetero-polysaccharide biopolymer |
US4329448A (en) * | 1979-07-10 | 1982-05-11 | Lever Brothers Company | Microbial heteropolysaccharide |
GB8622032D0 (en) * | 1986-09-12 | 1986-10-22 | Shell Int Research | Aqueous polysaccharide compositions |
US5106517A (en) * | 1990-05-29 | 1992-04-21 | Baker Hughes Incorporated | Drilling fluid with browning reaction anionic carbohydrate |
US5514644A (en) * | 1993-12-14 | 1996-05-07 | Texas United Chemical Corporation | Polysaccharide containing fluids having enhanced thermal stability |
US5728654A (en) * | 1995-08-25 | 1998-03-17 | Texas United Chemical Company, Llc. | Stabilized fluids containing soluble zinc |
US5804535A (en) * | 1997-06-09 | 1998-09-08 | Texas United Chemical Company, Llc. | Well drilling and servicing fluids and methods of increasing the low shear rate viscosity thereof |
-
1998
- 1998-07-24 US US09/121,712 patent/US5916849A/en not_active Expired - Lifetime
-
1999
- 1999-01-11 US US09/228,515 patent/US5977030A/en not_active Expired - Lifetime
- 1999-05-07 AU AU38903/99A patent/AU3890399A/en not_active Abandoned
- 1999-05-07 ID IDW20010354A patent/ID27229A/en unknown
- 1999-05-07 OA OA1200100025A patent/OA11587A/en unknown
- 1999-05-07 AT AT99921783T patent/ATE284936T1/en not_active IP Right Cessation
- 1999-05-07 MX MXPA01000839A patent/MXPA01000839A/en active IP Right Grant
- 1999-05-07 EP EP99921783A patent/EP1114115B1/en not_active Expired - Lifetime
- 1999-05-07 DE DE69922670T patent/DE69922670D1/en not_active Expired - Lifetime
- 1999-05-07 EA EA200100181A patent/EA002815B1/en not_active IP Right Cessation
- 1999-05-07 CA CA002338444A patent/CA2338444C/en not_active Expired - Fee Related
- 1999-05-07 WO PCT/US1999/010047 patent/WO2000005322A1/en active IP Right Grant
- 1999-05-07 BR BRPI9912417-3A patent/BR9912417B1/en not_active IP Right Cessation
- 1999-07-21 AR ARP990103579A patent/AR023029A1/en active IP Right Grant
-
2001
- 2001-01-23 NO NO20010384A patent/NO330308B1/en not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2713029A (en) * | 1952-05-07 | 1955-07-12 | Masonite Corp | Drilling mud addition agent |
US2713030A (en) * | 1952-05-17 | 1955-07-12 | Masonite Corp | Drilling mud addition agent |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10232304A1 (en) * | 2002-07-17 | 2004-02-05 | Henkel Kgaa | Optimal energy neutralization of acids with alkali carriers (especially in detergent production) is effected using a two-shaft mixer and without a spray drying step |
DE10232304B4 (en) * | 2002-07-17 | 2005-10-27 | Henkel Kgaa | Neutralization in the mixer |
US7781380B2 (en) | 2005-01-24 | 2010-08-24 | Schlumberger Technology Corporation | Methods of treating subterranean formations with heteropolysaccharides based fluids |
US7833949B2 (en) | 2005-01-24 | 2010-11-16 | Schlumberger Technology Corporation | Polysaccharide treatment fluid and method of treating a subterranean formation |
US8367589B2 (en) | 2005-01-24 | 2013-02-05 | Schlumberger Technology Corporation | Polysaccharide treatment fluid and method of treating a subterranean formation |
WO2007085983A1 (en) * | 2006-01-25 | 2007-08-02 | Schlumberger Canada Limited | Methods of treating subterranean formations with heteropolysaccharides based fluids |
EA015579B1 (en) * | 2006-01-25 | 2011-10-31 | Шлюмбергер Текнолоджи Б.В. | Methods of treating subterranean formations with heteropolysaccharides based fluids |
Also Published As
Publication number | Publication date |
---|---|
BR9912417A (en) | 2001-04-17 |
NO330308B1 (en) | 2011-03-28 |
EP1114115A1 (en) | 2001-07-11 |
BR9912417B1 (en) | 2009-12-01 |
ATE284936T1 (en) | 2005-01-15 |
EP1114115B1 (en) | 2004-12-15 |
US5916849A (en) | 1999-06-29 |
EP1114115A4 (en) | 2001-10-04 |
AU3890399A (en) | 2000-02-14 |
CA2338444C (en) | 2009-04-14 |
NO20010384D0 (en) | 2001-01-23 |
EA002815B1 (en) | 2002-10-31 |
MXPA01000839A (en) | 2002-06-04 |
US5977030A (en) | 1999-11-02 |
NO20010384L (en) | 2001-03-20 |
ID27229A (en) | 2001-03-08 |
DE69922670D1 (en) | 2005-01-20 |
EA200100181A1 (en) | 2001-08-27 |
AR023029A1 (en) | 2002-09-04 |
OA11587A (en) | 2004-07-01 |
CA2338444A1 (en) | 2000-02-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1114115B1 (en) | Polysaccharide-containing well drilling and servicing fluids | |
US6258755B1 (en) | Chitosan-containing well drilling and servicing fluids | |
US6127319A (en) | Oil-in-water emulsion | |
US6358889B2 (en) | Viscosified aqueous chitosan-containing well drilling and servicing fluids | |
US6291404B2 (en) | Viscosified aqueous chitosan-containing well drilling and servicing fluids | |
EP1114116B1 (en) | Aphron-containing well drilling and servicing fluids of enhanced stability | |
US6348436B1 (en) | Fluid comprising cellulose nanofibrils and its use for oil mining | |
US4900457A (en) | Aqueous polysaccharide compositions | |
NO177325B (en) | Well treatment liquid and additive | |
US6780822B2 (en) | Anhydride-modified chitosan, method of preparation thereof, and fluids containing same | |
US6656885B2 (en) | Anhydride-modified chitosan, method of preparation thereof, and fluids containing same | |
US6806231B2 (en) | Drilling fluid, apparatus, and method | |
EP1661555B1 (en) | Method of delaying the setting time of crosslinked lost circulation control pills | |
US20040157748A1 (en) | Aqueous-based oil well drilling fluids containing high amylose starch polymers | |
US20020137635A1 (en) | Fluids for use in oilfield development comprising deacetylated xanthan gum and at least one compound increasing the ionic strength of the medium | |
GB2365896A (en) | Drilling fluid |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AU BR CA CN ID MX NO US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW SD SL SZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
ENP | Entry into the national phase |
Ref document number: 2338444 Country of ref document: CA Ref document number: 2338444 Country of ref document: CA Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: PA/a/2001/000839 Country of ref document: MX |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1999921783 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 200100181 Country of ref document: EA |
|
WWP | Wipo information: published in national office |
Ref document number: 1999921783 Country of ref document: EP |
|
WWG | Wipo information: grant in national office |
Ref document number: 1999921783 Country of ref document: EP |