USRE33856E - Terpolymer compositions for aqueous drilling fluids - Google Patents

Terpolymer compositions for aqueous drilling fluids Download PDF

Info

Publication number
USRE33856E
USRE33856E US07/144,260 US14426088A USRE33856E US RE33856 E USRE33856 E US RE33856E US 14426088 A US14426088 A US 14426088A US RE33856 E USRE33856 E US RE33856E
Authority
US
United States
Prior art keywords
lignin
brown coal
modified
weight
water
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US07/144,260
Inventor
David M. Giddings
Charles D. Williamson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nalco Exxon Energy Chemicals LP
Ecolab USA Inc
Original Assignee
Nalco Chemical Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US06/848,527 external-priority patent/US4678591A/en
Application filed by Nalco Chemical Co filed Critical Nalco Chemical Co
Priority to US07/144,260 priority Critical patent/USRE33856E/en
Priority to US07/286,887 priority patent/USRE33855E/en
Application granted granted Critical
Publication of USRE33856E publication Critical patent/USRE33856E/en
Assigned to NALCO/ EXXON ENERGY CHEMICALS, L.P. reassignment NALCO/ EXXON ENERGY CHEMICALS, L.P. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: NALCO CHEMICAL COMPANY
Assigned to CITICORP NORTH AMERICA, INC. AS ADMINISTRATIVE AGENT reassignment CITICORP NORTH AMERICA, INC. AS ADMINISTRATIVE AGENT GRANT OF SECURITY INTEREST Assignors: ONDEO NALCO ENERGY SERVICES, L.P.
Assigned to NALCO ENERGY SERVICES, L.P. reassignment NALCO ENERGY SERVICES, L.P. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: ONDEO NALCO ENERGY SERVICES, L.P.
Assigned to NALCO COMPANY reassignment NALCO COMPANY MERGER (SEE DOCUMENT FOR DETAILS). Assignors: NALCO ENERGY SERVICES, L.P.
Anticipated expiration legal-status Critical
Assigned to BANK OF AMERICA, N.A., AS COLLATERAL AGENT reassignment BANK OF AMERICA, N.A., AS COLLATERAL AGENT SECURITY AGREEMENT Assignors: CALGON LLC, NALCO COMPANY, NALCO CROSSBOW WATER LLC, NALCO ONE SOURCE LLC
Assigned to NALCO COMPANY reassignment NALCO COMPANY RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: BANK OF AMERICA, N.A.
Assigned to NALCO COMPANY reassignment NALCO COMPANY RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: BANK OF AMERICA, N.A.
Assigned to NALCO COMPANY LLC reassignment NALCO COMPANY LLC CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: NALCO COMPANY
Assigned to NALCO COMPANY LLC reassignment NALCO COMPANY LLC CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: NALCO COMPANY
Assigned to ECOLAB USA INC. reassignment ECOLAB USA INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CALGON CORPORATION, CALGON LLC, NALCO COMPANY LLC, ONDEO NALCO ENERGY SERVICES, L.P.
Assigned to NALCO COMPANY reassignment NALCO COMPANY RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: CITICORP NORTH AMERICA, INC.
Assigned to ECOLAB USA INC. reassignment ECOLAB USA INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: NALCO COMPANY
Expired - Lifetime legal-status Critical Current

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
    • C09K8/60—Compositions for stimulating production by acting on the underground formation
    • C09K8/84—Compositions based on water or polar solvents
    • C09K8/86—Compositions based on water or polar solvents containing organic compounds
    • C09K8/88—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
    • C09K8/90—Compositions based on water or polar solvents containing organic compounds macromolecular compounds of natural origin, e.g. polysaccharides, cellulose
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/52—Amides or imides
    • C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
    • C08F220/58—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide containing oxygen in addition to the carbonamido oxygen, e.g. N-methylolacrylamide, N-(meth)acryloylmorpholine
    • C08F220/585—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide containing oxygen in addition to the carbonamido oxygen, e.g. N-methylolacrylamide, N-(meth)acryloylmorpholine and containing other heteroatoms, e.g. 2-acrylamido-2-methylpropane sulfonic acid [AMPS]
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F289/00—Macromolecular compounds obtained by polymerising monomers on to macromolecular compounds not provided for in groups C08F251/00 - C08F287/00
    • 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
    • C09K8/22—Synthetic organic compounds
    • 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
    • C09K8/22—Synthetic organic compounds
    • C09K8/24—Polymers

Definitions

  • Resinex a sulfonated lignite complexed with a sulfonated phenolic resin, is a commercially available high temperature, high pressure fluid loss additive for drilling muds. It is effective in controlling filtration properties in both fresh and sea water muds with high concentrations of soluble calcium.
  • a method for improving high temperature fluid loss and rheology stabilization of high calcium brine clay-containing oil well drilling fluids which comprises adding thereto a stabilizing amount of a water-soluble terpolymer composition comprising: polymer prepared by polymerizing the following monomer ingredients:
  • composition containing lignin, modified lignin, brown coal or modified brown coal in an amount ranging between 5-95% with the lignin, modified lignin, brown coal or modified brown coal having been present during the polymerization of the water-soluble polymer.
  • lignite is a brown coal in which the original structure of the wood is still recognizable. It is commonly known that lignite may be reacted with sulfuric acid or SO 3 to produce a sulfonated lignite.
  • SO 3 sulfuric acid
  • lignin is a byproduct formed in the processing of wood for the manufacture of paper.
  • leonardite is a naturally oxidized product with higher oxygen and moisture content than lignite.
  • humic acid which is a completed polycyclic polycarboxylic acid which can be converted into its salt form e.g. alkali metal, ammonia or amine, or it can be sulfonated.
  • salt form e.g. alkali metal, ammonia or amine
  • sulfonated e.g. sodium bicarbonate
  • Such products as well as other derivatives of humic acid are described in U.S. Pat. No. 3,266,887. The disclosure of which is incorporated herein by reference.
  • the polymer portion of the composition used to practice the invention is prepared in accordance with the teachings of U.S. Pat. No. 4,502,964.
  • the reaction temperature and times may be varied with the reaction time being temperature dependent, e.g. the higher the temperature the shorter the reaction time. Generally, temperatures within the range of about 35°-80° C. may be employed. Although, the temperature and reaction times vary, they are further governed by the amount of catalyst as well as the ratio of the reactants. Often, routine experimentation must be used to optimize the process.
  • compositions are prepared by conducting the polymerization in the presence of the lignin, modified lignin, brown coal or modified brown coal.
  • the amount of brown coal combined with the polymer as indicated ranges between 5-95%, preferably 20-50% and most preferably 20-35% by weight.
  • composition of this invention provides good results at dosages ranging between 0.5-10 lbs. per barrel.
  • a preferred dosage range is between 1-5 lbs. per barrel.
  • the dosages are varied depending upon the conditions and type of formation being treated.
  • the products of the invention provide effective and improved performance as fluid loss additive in oil field drilling fluids. These products show especially improved performance at elevated temperatures.
  • These additives may be used in a wide range of drilling fluid types including the following:

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Dispersion Chemistry (AREA)
  • Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

A method of improving high temperature fluid loss and rheology stabilization of high calcium brine clay-containing oil well drilling fluids which comprises adding thereto a stabilizing amount of a water-soluble terpolymer composition comprising:
______________________________________
Ingredients % by weight ______________________________________ NaAMPS 72-3.8 N,N-dimethylacrylamide 13.5-0.7 Acrylonitrile 9.5-0.5 ______________________________________
said composition containing lignin, modified lignin, brown coal or modified brown coal in an amount ranging between 5-95% with the lignin, modified lignin, brown cell or modified brown coal having been present during the polymerization of the water-soluble polymer.

Description

INTRODUCTION
A serious problem is encountered when clay-based oil well drilling fluids are subjected to conditions of high temperature and high pressure in conjunction with utilization of high calcium-containing brines which are used to prepare these drilling fluids. When these conditions exist, conventional drilling fluid polymeric additives such as acrylamide polymers, when used as stabilizers for these fluids, tend to be rendered ineffective.
In U.S. Pat. No. 4,502,964, there is shown an improved high temperature fluid loss additive and rheology stabilizer for high temperature oil well drilling fluids which comprises a water-soluble terpolymer having the following compositions:
______________________________________                                    
                    Mole %                                                
Ingredients           Preferred                                           
                               General                                    
______________________________________                                    
2-acrylamido-2-methylpropane-                                             
                      53.5     51-59                                      
sulfonic acid, sodium salt (AMPS.sup.1)                                   
N,N-dimethylacrylamide                                                    
                      16.6      6-28                                      
acrylonitrile         29.8     20-35                                      
______________________________________                                    
 .sup.1 AMPS, a registered trademark of Lubrizol, Inc.,                   
 2acrylamido-2-methylpropane sulfonic acid, Na salt.
These polymers are further described in this patent as having a molecular weight below one million. They preferably have a molecular weight range within the range of 10,000-500,000. The other properties of these polymers and their efficacy as high temperature fluid loss additives are further described in this patent. The disclosure of U.S. Pat. No. 4,502,964 is incorporated into this disclosure by reference and forms a part hereof.
Resinex, a sulfonated lignite complexed with a sulfonated phenolic resin, is a commercially available high temperature, high pressure fluid loss additive for drilling muds. It is effective in controlling filtration properties in both fresh and sea water muds with high concentrations of soluble calcium.
If it were possible to provide high temperature fluid loss additives having superior activity to the activity of either the polymers described U.S. Pat. No. 4,502,964 or the Resinex additive, an advance in the art would be afforded.
THE INVENTION
In accordance with the invention, there is provided a method for improving high temperature fluid loss and rheology stabilization of high calcium brine clay-containing oil well drilling fluids which comprises adding thereto a stabilizing amount of a water-soluble terpolymer composition comprising: polymer prepared by polymerizing the following monomer ingredients:
______________________________________                                    
Ingredients       % by weight                                             
______________________________________                                    
NaAMPS             72-3.8                                                 
N,N-dimethylacrylamide                                                    
                  13.5-0.7                                                
Acrylonitrile     9.5-0.5                                                 
______________________________________
said composition containing lignin, modified lignin, brown coal or modified brown coal in an amount ranging between 5-95% with the lignin, modified lignin, brown coal or modified brown coal having been present during the polymerization of the water-soluble polymer.
THE LIGNIN, MODIFIED LIGNIN, BROWN COAL OR MODIFIED BROWN COAL
A variety of material falling within this generic description may be used in the practice of the invention. One of the most common materials is lignite which is a brown coal in which the original structure of the wood is still recognizable. It is commonly known that lignite may be reacted with sulfuric acid or SO3 to produce a sulfonated lignite. A related product that may also be substituted is lignin which is a byproduct formed in the processing of wood for the manufacture of paper.
It can be modified to provide a lignosulfonate or a cyano derivative as described in U.S. Pat. No. 3,639,263.
Another related product is leonardite which is a naturally oxidized product with higher oxygen and moisture content than lignite.
Another brown coal-type material is humic acid which is a completed polycyclic polycarboxylic acid which can be converted into its salt form e.g. alkali metal, ammonia or amine, or it can be sulfonated. Such products as well as other derivatives of humic acid are described in U.S. Pat. No. 3,266,887. The disclosure of which is incorporated herein by reference.
The polymer portion of the composition used to practice the invention is prepared in accordance with the teachings of U.S. Pat. No. 4,502,964. The reaction temperature and times may be varied with the reaction time being temperature dependent, e.g. the higher the temperature the shorter the reaction time. Generally, temperatures within the range of about 35°-80° C. may be employed. Although, the temperature and reaction times vary, they are further governed by the amount of catalyst as well as the ratio of the reactants. Often, routine experimentation must be used to optimize the process.
As indicated, the compositions are prepared by conducting the polymerization in the presence of the lignin, modified lignin, brown coal or modified brown coal.
The amount of brown coal combined with the polymer as indicated ranges between 5-95%, preferably 20-50% and most preferably 20-35% by weight.
One of the suprising facts of the invention is that the entire broad range of lignin, modified lignin, brown coal or modified brown coal used shows excellent results are achieved in providing fluid loss control.
The composition of this invention provides good results at dosages ranging between 0.5-10 lbs. per barrel. A preferred dosage range is between 1-5 lbs. per barrel. The dosages are varied depending upon the conditions and type of formation being treated.
______________________________________                                    
Method for Preparing the Compositions of the Invention                    
Composition I                                                             
       Component     Weight Percent                                       
______________________________________                                    
(1)      Deionized Water 55.77                                            
(2)      Causticized Lignite                                              
                         9.53                                             
(3)      50% Na AMPS Solution                                             
                         28.87                                            
(4)      Dimethylacrylamide                                               
                         2.71                                             
(5)      Acrylonitrile   1.90                                             
(6)      EDTA            .10                                              
(7)      Sodium Bisulfite                                                 
                         .56                                              
(8)      Ammonium Persulfate                                              
                         .56                                              
                         100.00                                           
______________________________________
Charge (1) and (2) to reactor with stirring, heat to 60° C. and continue stirring at 60° C. for 30 minutes. Charge (3)-(6). Close in reactor, pull vacuum, break with nitrogen, repeat. Charge catalyst pair (7) and (8), portion-wise (approximately 0.14 weight percent) at one hour intervals. A small exotherm (10°-15° C.) may occur and the solution should gain viscosity. It appears that a Brookfield viscosity greater than 200 centipoise is necessary for peak product performance. Continue adding catalyst doses until residual monomer levels are at acceptable levels (less than 1% for AMPS and dimethylacrylamide, and less than 25 ppm for acrylonitrile). Typical residuals for open pot laboratory reactions are as follows:
______________________________________                                    
Monomer               Residual                                            
______________________________________                                    
ACN                    1.7 ug/g                                           
AMPS                   .07%                                               
diMeAcAM              <.05%                                               
______________________________________
Using this general preparative method, the following compositions in Table I were prepared:
              TABLE I                                                     
______________________________________                                    
Product Compositions                                                      
Weight Percents                                                           
Composition        N,N-dimethyl-        Lig-                              
No.      NaAMPS    acrylamide  Acrylonitrile                              
                                        nite                              
______________________________________                                    
1        50.5      9.5         6.7      33.3                              
2        60.7      11.4        7.9      20                                
3        72.0      13.5        9.5      5                                 
4        3.8       0.7         0.5      95                                
5        54.3      12.4        --       33.3                              
6        47.2      18.4        1.1      33.3                              
7        48.6      14.7        3.4      33.3                              
8        51.6      6.7         8.4      33.3                              
9        56.9      2.1         7.7      33.3                              
10       59.3      --          7.4      33.3                              
11       66.7      --          --       33.3                              
______________________________________
The following variations contain the same base polymer with different lignin/lignite variations:
NaAMPS (50.5%), N,N-dimethylacrylamide (9.5%), acrylonitrile (6.5%), lignin/lignite variation (33.3%).
______________________________________                                    
Composition No.   Lignin/Lignite Variation                                
______________________________________                                    
12                Ca lignosulfonate                                       
13                Na lignosulfonate                                       
14                Lignin                                                  
15                Sulfomethylated lignite                                 
16                Sulfonated lignite                                      
______________________________________
FLUID TEST PROCEDURES
The variations were tested in a high temperature, high pressure fluid loss additive test which is described in detail in the American Petroleum Institute publication RP13(B). Improved fluid loss control was observed for the variations tested. The results in both unaged muds and muds aged overnight at 350° F. are shown in Table II. The base mud used for testing consisted of:
______________________________________                                    
280       g          water                                                
15        g          bentonite                                            
40        g          kaolinite                                            
4         g          chrome lignosulfonate                                
294       g          barite                                               
10.6      g.         sea salt                                             
______________________________________
Using the above test procedures, the compositions of Table I were evaluated with the results being shown in Table II.
              TABLE II                                                    
______________________________________                                    
Composi-                                                                  
       Concentration                                                      
                    HTHP Fluid Loss (ml)                                  
tion No.                                                                  
       (lbs/bbl)    Unaged        Aged 350° F.                     
______________________________________                                    
Blank  --           dry @ 27 min  dry @ 28 min                            
1      2            80            70                                      
2      2            64            62                                      
3      2            76            66                                      
4      2            142           134                                     
5      2            90            70                                      
6      2            78            60                                      
7      2            74            62                                      
8      2            96            66                                      
9      2            98            94                                      
10     2            112           94                                      
11     2            84            70                                      
12     2            dry @ 29 min 30 sec                                   
                                  82                                      
13     2            134           102                                     
14     2            dry @ 27 min  96                                      
15     2            dry @ 29 min 30 sec                                   
                                  124                                     
16     2            124           96                                      
______________________________________
The products of the invention, either in solution or in dry form, provide effective and improved performance as fluid loss additive in oil field drilling fluids. These products show especially improved performance at elevated temperatures. These additives may be used in a wide range of drilling fluid types including the following:
(1) fresh water muds
(2) fresh water muds contaminated with calcium or other multivalent ion
(3) sea water muds
(4) gypsum muds
(5) lime muds

Claims (2)

Having thus described our invention it is claimed as follows:
1. A method of improving high temperature fluid loss and rheology stabilization of high calcium brine clay-containing aqueous oil well drilling fluids which comprises adding thereto a stabilizing amount of a water-soluble terpolymer composition comprising: a polymer prepared by polymerizing the following monomer ingredients:
______________________________________                                    
Ingredients          % by Weight                                          
______________________________________                                    
[NaAMPS] 2-acrylamido-2-methyl-                                           
                      72-3.8                                              
propane sulfonic acid, sodium salt                                        
N,N-dimethylacrylamide                                                    
                     13.5-0.7                                             
Acrylonitrile        9.5-0.5                                              
______________________________________
said composition containing lignin, modified lignin, brown coal or modified brown coal in an amount ranging between 5-95% with the .Iadd.lignin, modified lignin, .Iaddend.brown coal or modified brown coal having been present during the polymerization of the water-soluble polymer, where the lignin, modified lignin, brown coal or modified brown coal is from the group consisting of lignites, sulphonated lignites, lignins, leonardites, lignosulfonates, alkali metal humic acid salts, humic acids, and sulphonated humic acids. .[.2. The method of claim 1 where the lignin, modified lignin, brown coal or modified brown coal is present in an amount
ranging between 5-95% by weight..]. 3. The method of claim 1 where the lignin, modified lignin, brown coal or modified brown coal is present in an amount ranging between 20-35% by weight.
US07/144,260 1986-04-07 1988-01-15 Terpolymer compositions for aqueous drilling fluids Expired - Lifetime USRE33856E (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US07/144,260 USRE33856E (en) 1986-04-07 1988-01-15 Terpolymer compositions for aqueous drilling fluids
US07/286,887 USRE33855E (en) 1986-04-07 1988-12-20 Terpolymer composition for aqueous drilling fluids

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/848,527 US4678591A (en) 1986-04-07 1986-04-07 Terpolymer composition for aqueous drilling fluids
US07/144,260 USRE33856E (en) 1986-04-07 1988-01-15 Terpolymer compositions for aqueous drilling fluids

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US06/848,527 Reissue US4678591A (en) 1986-04-07 1986-04-07 Terpolymer composition for aqueous drilling fluids

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US07/286,887 Division USRE33855E (en) 1986-04-07 1988-12-20 Terpolymer composition for aqueous drilling fluids

Publications (1)

Publication Number Publication Date
USRE33856E true USRE33856E (en) 1992-03-24

Family

ID=26841814

Family Applications (1)

Application Number Title Priority Date Filing Date
US07/144,260 Expired - Lifetime USRE33856E (en) 1986-04-07 1988-01-15 Terpolymer compositions for aqueous drilling fluids

Country Status (1)

Country Link
US (1) USRE33856E (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060111245A1 (en) * 2004-11-23 2006-05-25 Carbajal David L Environmentally friendly water based mud deflocculant/ thinner
CN103710011A (en) * 2013-12-16 2014-04-09 吉林省东新石油工程技术有限公司 Modified polyacrylamide profile control system as well as preparation and use method thereof
CN111690385A (en) * 2020-06-30 2020-09-22 乌海市盛世源石油科技有限公司 Filtrate reducer lignite resin for drilling fluid and preparation method thereof

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2650197A (en) * 1953-04-21 1953-08-25 Henry W Rahn Well drilling composition and method of manufacture thereof
US2718497A (en) * 1950-11-03 1955-09-20 Union Oil Co Drilling muds
US2935504A (en) * 1955-10-10 1960-05-03 Puget Sound Pulp And Timber Co Process of improving the effectiveness of the components of spent sulfite liquor andthe products thereof
US3266887A (en) * 1962-10-29 1966-08-16 Nalco Chemical Co Ore pelletization process and products
US3639263A (en) * 1968-07-31 1972-02-01 Nalco Chemical Co Corrosion inhibition with a tannin, cyanohydrinated lignosulfonate, and an inorganic metal salt composition
US3700728A (en) * 1968-01-04 1972-10-24 Canadian Patents Dev Solubilization of humic acids, lignites and coals
US3985659A (en) * 1975-02-24 1976-10-12 Georgia-Pacific Corporation Drilling fluid composition
US4374738A (en) * 1980-06-09 1983-02-22 Georgia-Pacific Corporation Drilling fluid composition
EP0072445A2 (en) * 1981-07-27 1983-02-23 B W Mud Limited Temperature stable drilling fluids
US4502964A (en) * 1983-09-09 1985-03-05 Nalco Chemical Company Terpolymers for use as high temperature fluid loss additive and rheology stabilizer for high pressure, high temperature oil well drilling fluids
US4547299A (en) * 1984-03-15 1985-10-15 Milchem Incorporated Drilling fluid containing a copolymer filtration control agent
US4650593A (en) * 1977-09-19 1987-03-17 Nl Industries, Inc. Water-based drilling fluids having enhanced fluid loss control
US4676317A (en) * 1986-05-13 1987-06-30 Halliburton Company Method of reducing fluid loss in cement compositions which may contain substantial salt concentrations

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2718497A (en) * 1950-11-03 1955-09-20 Union Oil Co Drilling muds
US2650197A (en) * 1953-04-21 1953-08-25 Henry W Rahn Well drilling composition and method of manufacture thereof
US2935504A (en) * 1955-10-10 1960-05-03 Puget Sound Pulp And Timber Co Process of improving the effectiveness of the components of spent sulfite liquor andthe products thereof
US3266887A (en) * 1962-10-29 1966-08-16 Nalco Chemical Co Ore pelletization process and products
US3700728A (en) * 1968-01-04 1972-10-24 Canadian Patents Dev Solubilization of humic acids, lignites and coals
US3639263A (en) * 1968-07-31 1972-02-01 Nalco Chemical Co Corrosion inhibition with a tannin, cyanohydrinated lignosulfonate, and an inorganic metal salt composition
US3985659A (en) * 1975-02-24 1976-10-12 Georgia-Pacific Corporation Drilling fluid composition
US4650593A (en) * 1977-09-19 1987-03-17 Nl Industries, Inc. Water-based drilling fluids having enhanced fluid loss control
US4374738A (en) * 1980-06-09 1983-02-22 Georgia-Pacific Corporation Drilling fluid composition
EP0072445A2 (en) * 1981-07-27 1983-02-23 B W Mud Limited Temperature stable drilling fluids
US4502964A (en) * 1983-09-09 1985-03-05 Nalco Chemical Company Terpolymers for use as high temperature fluid loss additive and rheology stabilizer for high pressure, high temperature oil well drilling fluids
US4547299A (en) * 1984-03-15 1985-10-15 Milchem Incorporated Drilling fluid containing a copolymer filtration control agent
US4676317A (en) * 1986-05-13 1987-06-30 Halliburton Company Method of reducing fluid loss in cement compositions which may contain substantial salt concentrations

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Amer. Petroleum Institute, publication RP 13 (B), 6th Ed., Apr. 1976, pp. 1 33, Standard Procedure for Testing Drilling Fluids . *
Amer. Petroleum Institute, publication RP 13 (B), 6th Ed., Apr. 1976, pp. 1-33, "Standard Procedure for Testing Drilling Fluids".

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060111245A1 (en) * 2004-11-23 2006-05-25 Carbajal David L Environmentally friendly water based mud deflocculant/ thinner
CN103710011A (en) * 2013-12-16 2014-04-09 吉林省东新石油工程技术有限公司 Modified polyacrylamide profile control system as well as preparation and use method thereof
CN103710011B (en) * 2013-12-16 2017-05-10 安东石油技术（集团）有限公司 Modified polyacrylamide profile control system as well as preparation and use method thereof
CN111690385A (en) * 2020-06-30 2020-09-22 乌海市盛世源石油科技有限公司 Filtrate reducer lignite resin for drilling fluid and preparation method thereof

Similar Documents

Publication Publication Date Title
US4678591A (en) Terpolymer composition for aqueous drilling fluids
CA1228723A (en) Hydrolytically stable polymers for use in oil field cementing methods and compositions
US5028271A (en) Vinyl grafted lignite fluid loss additives
US4680128A (en) Anionic copolymers for improved control of drilling fluid rheology
EP0192447B1 (en) Oil field cementing methods and compositions
US5147964A (en) Method for reducing fluid loss from oilfield cement slurries using vinyl grafted wattle tannin
US4703801A (en) Method of reducing fluid loss in cement compositions which may contain substantial salt concentrations
US4676317A (en) Method of reducing fluid loss in cement compositions which may contain substantial salt concentrations
US5134215A (en) Method for reducing fluid loss from oilfield cement slurries using vinyl grafted wattle tannin
US4938803A (en) Vinyl grafted lignite fluid loss additives
US4921621A (en) Hydrolyzed co-polymers of N-vinylamide and acrylamide for use as waterloss control additives in drilling mud
US4521578A (en) Composition and method of preparation of novel aqueous drilling fluid additives
US3234154A (en) Cement composition
CA2107487A1 (en) Cement set retarding additives, compositions and methods
EP0122073A1 (en) Intramolecular polymer complexes - viscosifiers for high ionic strength drilling fluids
US4502965A (en) Terpolymers for use as high temperature fluid loss additive and rheology stabilizer for high pressure, high temperature oil well drilling fluids
US4502966A (en) Terpolymers for use as high temperature fluid loss additive and rheology stabilizer for high pressure, high temperature oil well drilling fluids
US4502964A (en) Terpolymers for use as high temperature fluid loss additive and rheology stabilizer for high pressure, high temperature oil well drilling fluids
US4478727A (en) Sodium styrene sulfonate-co-sodium-n-(4-sulfophenyl)-maleimide- an improved viscosity control additive
US4341645A (en) Aqueous drilling and packer fluids
USRE33856E (en) Terpolymer compositions for aqueous drilling fluids
USRE33855E (en) Terpolymer composition for aqueous drilling fluids
US4637882A (en) Polyampholytes - high temperature viscosifiers for high ionic strength drilling fluids
GB2210888A (en) Chemically modified lignin materials and their use in controlling fluid loss
US4812244A (en) Well drilling fluids and process for drilling wells

Legal Events

Date Code Title Description
FEPP Fee payment procedure

Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

FPAY Fee payment

Year of fee payment: 8

AS Assignment

Owner name: NALCO/ EXXON ENERGY CHEMICALS, L.P., TEXAS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:NALCO CHEMICAL COMPANY;REEL/FRAME:007846/0309

Effective date: 19940901

FPAY Fee payment

Year of fee payment: 12

AS Assignment

Owner name: ONDEO NALCO ENERGY SERVICES, L.P. 7701 HIGHWAY 90-

Free format text: CHANGE OF NAME;ASSIGNOR:NALCO/EXXON ENERGY CHEMICALS, L.P. /AR;REEL/FRAME:012312/0854

Effective date: 20010614

AS Assignment

Owner name: CITICORP NORTH AMERICA, INC. AS ADMINISTRATIVE AGE

Free format text: GRANT OF SECURITY INTEREST;ASSIGNOR:ONDEO NALCO ENERGY SERVICES, L.P.;REEL/FRAME:014797/0293

Effective date: 20031104

AS Assignment

Owner name: NALCO ENERGY SERVICES, L.P., TEXAS

Free format text: CHANGE OF NAME;ASSIGNOR:ONDEO NALCO ENERGY SERVICES, L.P.;REEL/FRAME:017145/0498

Effective date: 20031107

AS Assignment

Owner name: NALCO COMPANY, ILLINOIS

Free format text: MERGER;ASSIGNOR:NALCO ENERGY SERVICES, L.P.;REEL/FRAME:017164/0856

Effective date: 20060101

AS Assignment

Owner name: BANK OF AMERICA, N.A., AS COLLATERAL AGENT, NEW YO

Free format text: SECURITY AGREEMENT;ASSIGNORS:NALCO COMPANY;CALGON LLC;NALCO ONE SOURCE LLC;AND OTHERS;REEL/FRAME:022703/0001

Effective date: 20090513

Owner name: BANK OF AMERICA, N.A., AS COLLATERAL AGENT,NEW YOR

Free format text: SECURITY AGREEMENT;ASSIGNORS:NALCO COMPANY;CALGON LLC;NALCO ONE SOURCE LLC;AND OTHERS;REEL/FRAME:022703/0001

Effective date: 20090513

AS Assignment

Owner name: NALCO COMPANY, ILLINOIS

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:BANK OF AMERICA, N.A.;REEL/FRAME:035976/0609

Effective date: 20111201

AS Assignment

Owner name: NALCO COMPANY, ILLINOIS

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:BANK OF AMERICA, N.A.;REEL/FRAME:041808/0713

Effective date: 20111201

AS Assignment

Owner name: NALCO COMPANY LLC, DELAWARE

Free format text: CHANGE OF NAME;ASSIGNOR:NALCO COMPANY;REEL/FRAME:041835/0903

Effective date: 20151229

Owner name: ECOLAB USA INC., MINNESOTA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:NALCO COMPANY LLC;CALGON CORPORATION;CALGON LLC;AND OTHERS;REEL/FRAME:041836/0437

Effective date: 20170227

Owner name: NALCO COMPANY LLC, DELAWARE

Free format text: CHANGE OF NAME;ASSIGNOR:NALCO COMPANY;REEL/FRAME:041836/0364

Effective date: 20151231

Owner name: NALCO COMPANY, ILLINOIS

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:CITICORP NORTH AMERICA, INC.;REEL/FRAME:041837/0366

Effective date: 20170227

AS Assignment

Owner name: ECOLAB USA INC., MINNESOTA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:NALCO COMPANY;REEL/FRAME:042147/0420

Effective date: 20170227