Density increasing or weighting additives

Industry

CPC
C09K8/48

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Parent Industries

CCHEMISTRY METALLURGY C09Paints, dyes C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE C09K8/00Compositions for drilling of boreholes or wells Compositions for treating boreholes or wells

Current Industry

C09K8/48Density increasing or weighting additives

Industries

Patents Grantslast 30 patents

Information Patent Grant
Fluid loss control additive
- Patent number 12,134,732
- Issue date Nov 5, 2024
- Saudi Arabian Oil Company
- Peter Boul
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Biomimetic nacre-toughness cement slurry based on in-situ polymeriz...
- Patent number 12,129,426
- Issue date Oct 29, 2024
- Tianjin University
- Jintang Guo
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Polymeric red mud-based killing fluid and uses thereof
- Patent number 12,122,957
- Issue date Oct 22, 2024
- Saudi Arabian Oil Company
- Harry Daniel Oduro
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Fluid loss additive for low-Portland or non-Portland cements
- Patent number 12,077,711
- Issue date Sep 3, 2024
- Halliburton Energy Services, Inc.
- William Cecil Pearl
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mitigating lost circulation
- Patent number 12,037,870
- Issue date Jul 16, 2024
- Newpark Drilling Fluids LLC
- Arthur Herman Hale
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Mitigation of transient gels in cements
- Patent number 12,018,207
- Issue date Jun 25, 2024
- Halliburton Energy Services, Inc.
- Thomas Jason Pisklak
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Geopolymer formulations for mitigating losses
- Patent number 11,976,238
- Issue date May 7, 2024
- Halliburton Energy Services, Inc.
- Thomas Jason Pisklak
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Foamed treatment fluids for lost circulation control
- Patent number 11,926,788
- Issue date Mar 12, 2024
- Halliburton Energy Services, Inc.
- Brendon Chia Han Tan
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Compositions and methods for well cementing
- Patent number 11,920,079
- Issue date Mar 5, 2024
- Schlumberger Technology Corporation
- Bipin Jain
- E21 - EARTH DRILLING MINING
Information Patent Grant
System and method for plugging a lost-circulation zone in a subsurf...
- Patent number 11,913,295
- Issue date Feb 27, 2024
- Saudi Arabian Oil Company
- Jothibasu Ramasamy
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Use of granite waste powder in lightweight oilwell cement systems;...
- Patent number 11,898,089
- Issue date Feb 13, 2024
- King Fahd University of Petroleum & Minerals
- Salaheldin Elkatatny
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Downhole fluids and methods of use thereof
- Patent number 11,898,085
- Issue date Feb 13, 2024
- Halliburton Energy Services, Inc.
- Vivek S. Goel
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Host-guest lost-circulation materials for sealing lost circulation...
- Patent number 11,891,565
- Issue date Feb 6, 2024
- Saudi Arabian Oil Company
- Hasmukh A. Patel
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method to enhance the self-sealing of well cement leakage pathways...
- Patent number 11,879,090
- Issue date Jan 23, 2024
- Chevron U.S.A. Inc.
- Nathan James Welch
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Wellbore servicing fluid and methods of making and using same
- Patent number 11,859,123
- Issue date Jan 2, 2024
- Halliburton Energy Services, Inc.
- Rahul Jadhav
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Method for designing polymers for effective fluid loss control
- Patent number 11,859,124
- Issue date Jan 2, 2024
- Halliburton Energy Services, Inc.
- William Cecil Pearl
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Cement slurries, cured cement and methods of making and use thereof
- Patent number 11,840,660
- Issue date Dec 12, 2023
- Saudi Arabian Oil Company
- Abdullah Al-Yami
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Scour-resistant interface enhancer used for well cementing of coalb...
- Patent number 11,820,936
- Issue date Nov 21, 2023
- CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
- Shenglai Guo
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Methods of cementing a wellbore without using a spacer fluid with a...
- Patent number 11,814,572
- Issue date Nov 14, 2023
- Baker Hughes Oilfield Operations LLC
- Angela Anh Doan
- E21 - EARTH DRILLING MINING
Information Patent Grant
Combination of fluid loss control additive and lost circulation mat...
- Patent number 11,807,806
- Issue date Nov 7, 2023
- Halliburton Energy Services, Inc.
- Sandip Prabhakar Patil
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Cement compositions containing phyllosilicate and methods of use
- Patent number 11,780,775
- Issue date Oct 10, 2023
- King Fahd University of Petroleum & Minerals
- Salaheldin Elkatatny
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Accelerated cement composition for reducing corrosion of wellbore c...
- Patent number 11,773,310
- Issue date Oct 3, 2023
- Saudi Arabian Oil Company
- Sara A. Alkhalaf
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Calcium carbonate lost circulation material morphologies for use in...
- Patent number 11,753,573
- Issue date Sep 12, 2023
- Halliburton Energy Services, Inc.
- Dale E. Jamison
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Additive for cement slurry for well and method for producing said a...
- Patent number 11,753,572
- Issue date Sep 12, 2023
- NISSAN CHEMICAL CORPORATION
- Satoru Murakami
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Methods and systems for water shut-off
- Patent number 11,739,610
- Issue date Aug 29, 2023
- Saudi Arabian Oil Company
- Abdullah M. Alharith
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Cementing formulations containing halloysite and silica flour and m...
- Patent number 11,708,520
- Issue date Jul 25, 2023
- King Fahd University of Petroleum & Minerals
- Ahmed Abdulhamid Mahmoud
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Geopolymer cement compositions and methods of use
- Patent number 11,692,122
- Issue date Jul 4, 2023
- Halliburton Energy Services, Inc.
- Thomas Jason Pisklak
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Nanoparticle alumina as a cement accelerator and compressive streng...
- Patent number 11,685,853
- Issue date Jun 27, 2023
- Halliburton Energy Services, Inc.
- Thomas Jason Pisklak
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Carbonation-resistant cementitious blend containing olive waste
- Patent number 11,685,854
- Issue date Jun 27, 2023
- King Fahd University of Petroleum & Minerals
- Salaheldin Elkatatny
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Suspending agents obtained by micellar polymerization
- Patent number 11,649,390
- Issue date May 16, 2023
- Energy Solutions (US) LLC
- Arnaud Cadix
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
BIODEGRADABLE AND ACID SOLUBLE MATERIALS FOR CONTROL OF LOSS OF CIR...
- Publication number 20240384153
- Publication date Nov 21, 2024
- Baker Hughes Oilfield Operations LLC
- Autumn Shepherd
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
GEOPOLYMER COMPOSITIONS AND METHODS
- Publication number 20240368962
- Publication date Nov 7, 2024
- SCHLUMBERGER TECHNOLOGY CORPORATION
- Nathan Fischer
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
ULTRA-HIGH TEMPERATURE RESISTANT CEMENT SLURRY SYSTEM FOR CEMENTING...
- Publication number 20240336828
- Publication date Oct 10, 2024
- CHINA NATIONAL PETROLEUM CORPORATION
- Jianzhou JIN
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
COMPOSITIONS AND METHODS FOR CALCIUM LIGNOSULFONATE CEMENT DISPERSANTS
- Publication number 20240279117
- Publication date Aug 22, 2024
- Saudi Arabian Oil Company
- Khawlah A. ALANQARI
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
METHOD FOR OBTAINING BIO-SOURCED SUSBTITUTED ALKYL(METH)ACRYLAMIDE
- Publication number 20240262786
- Publication date Aug 8, 2024
- Cédrick FAVERO
- C07 - ORGANIC CHEMISTRY
Information Patent Application
POLYMERIC RED MUD-BASED KILLING FLUID AND USES THEREOF
- Publication number 20240191126
- Publication date Jun 13, 2024
- Saudi Arabian Oil Company
- Harry Daniel Oduro
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
Mitigation Of Transient Gels In Cements
- Publication number 20240182775
- Publication date Jun 6, 2024
- Halliburton Energy Services, Inc.
- Thomas Jason PISKLAK
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
COMPOSITIONS AND METHODS FOR WELL CEMENTING
- Publication number 20240158686
- Publication date May 16, 2024
- SCHLUMBERGER TECHNOLOGY CORPORATION
- Bipin Jain
- E21 - EARTH DRILLING MINING
Information Patent Application
HOST-GUEST LOST-CIRCULATION MATERIALS FOR SEALING LOST CIRCULATION...
- Publication number 20240067857
- Publication date Feb 29, 2024
- Saudi Arabian Oil Company
- Hasmukh A. Patel
- E21 - EARTH DRILLING MINING
Information Patent Application
Mitigation of Transient Gels in Cements
- Publication number 20240059955
- Publication date Feb 22, 2024
- Halliburton Energy Services, Inc.
- Thomas Jason PISKLAK
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
METHOD OF REACTING CO2 BY EMULSIFYING CEMENT AND USE IN OILWELL CEM...
- Publication number 20240059954
- Publication date Feb 22, 2024
- ARAMCO SERVICES COMPANY
- Ashok Santra
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
CEMENT SLURRY WITH POLYETHYLENEIMINE HYDROCHLORIDE SALT AS A SHALE...
- Publication number 20240052233
- Publication date Feb 15, 2024
- Saudi Arabian Oil Company
- Vikrant Wagle
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
VINYL ALCOHOL-BASED POLYMER
- Publication number 20230313021
- Publication date Oct 5, 2023
- DENKA COMPANY LIMITED
- Akihiro YAMASHITA
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
USE OF GRANITE WASTE POWDER IN LIGHTWEIGHT OILWELL CEMENT SYSTEMS;...
- Publication number 20230287257
- Publication date Sep 14, 2023
- KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
- Salaheldin ELKATATNY
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
SCOUR-RESISTANT INTERFACE ENHANCER USED FOR WELL CEMENTING OF COALB...
- Publication number 20230227710
- Publication date Jul 20, 2023
- China University of Petroleum (East China)
- Shenglai GUO
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
POLYVINYL ALCOHOL-BASED POLYMER
- Publication number 20230212332
- Publication date Jul 6, 2023
- DENKA COMPANY LIMITED
- Akihiro YAMASHITA
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
CEMENT SLURRIES, CURED CEMENT AND METHODS OF MAKING AND USE THEREOF
- Publication number 20230193111
- Publication date Jun 22, 2023
- Saudi Arabian Oil Company
- Abdullah Al-Yami
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
SYSTEM AND METHOD FOR PLUGGING A LOST-CIRCULATION ZONE IN A SUBSURF...
- Publication number 20230193705
- Publication date Jun 22, 2023
- Saudi Arabian Oil Company
- Jothibasu Ramasamy
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
METHODS TO USE WATER SHUTOFF MATERIAL COMPOSITION COMPRISING ALKALI...
- Publication number 20230183545
- Publication date Jun 15, 2023
- Saudi Arabian Oil Company
- Rajendra Arunkumar Kalgaonkar
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
COMPOSITIONS AND METHODS FOR WELL CEMENTING
- Publication number 20230183547
- Publication date Jun 15, 2023
- SCHLUMBERGER TECHNOLOGY CORPORATION
- Bipin Jain
- E21 - EARTH DRILLING MINING
Information Patent Application
CEMENTING FORMULATIONS CONTAINING HALLOYSITE AND SILICA FLOUR AND M...
- Publication number 20230174843
- Publication date Jun 8, 2023
- KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
- Ahmed Abdulhamid MAHMOUD
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
FLUID LOSS CONTROL ADDITIVE
- Publication number 20230174844
- Publication date Jun 8, 2023
- Saudi Arabian Oil Company
- Peter Boul
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
FLUID LOSS ADDITIVE FOR LOW-PORTLAND OR NON-PORTLAND CEMENTS
- Publication number 20230143012
- Publication date May 11, 2023
- Halliburton Energy Services, Inc.
- William Cecil Pearl
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
Design For Fluid Loss Requirement Of A Cement Slurry Using Bulk Ble...
- Publication number 20230111521
- Publication date Apr 13, 2023
- Halliburton Energy Services, Inc.
- John Paul Bir Singh
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
GEOPOLYMER CEMENT COMPOSITIONS AND METHODS OF USE
- Publication number 20230048556
- Publication date Feb 16, 2023
- Halliburton Energy Services, Inc.
- Thomas Jason PISKLAK
- E21 - EARTH DRILLING MINING
Information Patent Application
Wellbore Servicing Fluid and Methods of Making and Using Same
- Publication number 20230031506
- Publication date Feb 2, 2023
- Halliburton Energy Services, Inc.
- Rahul JADHAV
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
ACCELERATED CEMENT COMPOSITION FOR REDUCING CORROSION OF WELLBORE C...
- Publication number 20230031885
- Publication date Feb 2, 2023
- Saudi Arabian Oil Company
- Sara A. Alkhalaf
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
FLUID LOSS CONTROL AGENT FOR AQUEOUS WELLBORE FLUIDS
- Publication number 20230002665
- Publication date Jan 5, 2023
- SCHLUMBERGER TECHNOLOGY CORPORATION
- Balakrishnan Panamarathupalayam
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
Method To Enhance The Self-Sealing Of Well Cement Leakage Pathways...
- Publication number 20220389302
- Publication date Dec 8, 2022
- Chevron U.S.A. Inc.
- Nathan James Welch
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
ADDITIVE FOR CEMENT SLURRY FOR WELL AND METHOD FOR PRODUCING SAID A...
- Publication number 20220220357
- Publication date Jul 14, 2022
- NISSAN CHEMICAL CORPORATION
- Satoru MURAKAMI
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES

Density increasing or weighting additives

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Fluid loss control additive

Biomimetic nacre-toughness cement slurry based on in-situ polymeriz...

Polymeric red mud-based killing fluid and uses thereof

Fluid loss additive for low-Portland or non-Portland cements

Mitigating lost circulation

Mitigation of transient gels in cements

Geopolymer formulations for mitigating losses

Foamed treatment fluids for lost circulation control

Compositions and methods for well cementing

System and method for plugging a lost-circulation zone in a subsurf...

Use of granite waste powder in lightweight oilwell cement systems;...

Downhole fluids and methods of use thereof

Host-guest lost-circulation materials for sealing lost circulation...

Method to enhance the self-sealing of well cement leakage pathways...

Wellbore servicing fluid and methods of making and using same

Method for designing polymers for effective fluid loss control

Cement slurries, cured cement and methods of making and use thereof

Scour-resistant interface enhancer used for well cementing of coalb...

Methods of cementing a wellbore without using a spacer fluid with a...

Combination of fluid loss control additive and lost circulation mat...

Cement compositions containing phyllosilicate and methods of use

Accelerated cement composition for reducing corrosion of wellbore c...

Calcium carbonate lost circulation material morphologies for use in...

Additive for cement slurry for well and method for producing said a...

Methods and systems for water shut-off

Cementing formulations containing halloysite and silica flour and m...

Geopolymer cement compositions and methods of use

Nanoparticle alumina as a cement accelerator and compressive streng...

Carbonation-resistant cementitious blend containing olive waste

Suspending agents obtained by micellar polymerization

Patents Applicationslast 30 patents

BIODEGRADABLE AND ACID SOLUBLE MATERIALS FOR CONTROL OF LOSS OF CIR...

GEOPOLYMER COMPOSITIONS AND METHODS

ULTRA-HIGH TEMPERATURE RESISTANT CEMENT SLURRY SYSTEM FOR CEMENTING...

COMPOSITIONS AND METHODS FOR CALCIUM LIGNOSULFONATE CEMENT DISPERSANTS

METHOD FOR OBTAINING BIO-SOURCED SUSBTITUTED ALKYL(METH)ACRYLAMIDE

POLYMERIC RED MUD-BASED KILLING FLUID AND USES THEREOF

Mitigation Of Transient Gels In Cements

COMPOSITIONS AND METHODS FOR WELL CEMENTING

HOST-GUEST LOST-CIRCULATION MATERIALS FOR SEALING LOST CIRCULATION...

Mitigation of Transient Gels in Cements

METHOD OF REACTING CO2 BY EMULSIFYING CEMENT AND USE IN OILWELL CEM...

CEMENT SLURRY WITH POLYETHYLENEIMINE HYDROCHLORIDE SALT AS A SHALE...

VINYL ALCOHOL-BASED POLYMER

USE OF GRANITE WASTE POWDER IN LIGHTWEIGHT OILWELL CEMENT SYSTEMS;...

SCOUR-RESISTANT INTERFACE ENHANCER USED FOR WELL CEMENTING OF COALB...

POLYVINYL ALCOHOL-BASED POLYMER

CEMENT SLURRIES, CURED CEMENT AND METHODS OF MAKING AND USE THEREOF

SYSTEM AND METHOD FOR PLUGGING A LOST-CIRCULATION ZONE IN A SUBSURF...

METHODS TO USE WATER SHUTOFF MATERIAL COMPOSITION COMPRISING ALKALI...

COMPOSITIONS AND METHODS FOR WELL CEMENTING

CEMENTING FORMULATIONS CONTAINING HALLOYSITE AND SILICA FLOUR AND M...

FLUID LOSS CONTROL ADDITIVE

FLUID LOSS ADDITIVE FOR LOW-PORTLAND OR NON-PORTLAND CEMENTS

Design For Fluid Loss Requirement Of A Cement Slurry Using Bulk Ble...

GEOPOLYMER CEMENT COMPOSITIONS AND METHODS OF USE

Wellbore Servicing Fluid and Methods of Making and Using Same

ACCELERATED CEMENT COMPOSITION FOR REDUCING CORROSION OF WELLBORE C...

FLUID LOSS CONTROL AGENT FOR AQUEOUS WELLBORE FLUIDS

Method To Enhance The Self-Sealing Of Well Cement Leakage Pathways...

ADDITIVE FOR CEMENT SLURRY FOR WELL AND METHOD FOR PRODUCING SAID A...