Chemical Mechanism in the Fluid Loss Additive Modified Oil Well Cement System

2019 ◽  
pp. 204-212
Author(s):  
Di Chen ◽  
Jin-tang Guo
Keyword(s):  
Chemical Mechanism ◽  
Fluid Loss ◽  
Oil Well ◽  
Oil Well Cement ◽  
Cement System ◽  
Well Cement ◽  
Fluid Loss Additive

Salt-Tolerance Performance of Oil Well Cement Fluid Loss Additive SSS/HAM/IA

2020 ◽  
Vol 993 ◽  
pp. 1351-1355
Author(s):  
Wei Yuan Xiao ◽  
Ming Li ◽  
Dong Bo Xie
Keyword(s):  
Salt Tolerance ◽  
Water Loss ◽  
Environmental Scanning Electron Microscopy ◽  
Environmental Scanning ◽  
Fluid Loss ◽  
Oil Well ◽  
Cement Slurry ◽  
Oil Well Cement ◽  
Well Cement ◽  
Fluid Loss Additive

In order to study the effect of brine environment on the performance of oil well cement fluid loss additive (FLA) sodium p-styrene sulfonate/N-methylol acrylamide/itaconic acid (SSS/HAM/IA), the water loss of three different cement slurry systems added with different FLA additions (fresh water cement slurry, semi-saturated brine cement slurry and saturated brine cement slurry) were tested at 90°C and 150°C. The results show that SSS/HAM/IA has good salt tolerance. The water loss of three cement slurry systems was controlled within 100mL with FLA addition adjusted in the range of 1%~3% below 150 °C. The salt tolerance mechanism of SSS/HAM/IA was analyzed based on the microstructure of the three system terpolymer solutions characterized under environmental scanning electron microscopy (ESEM).

scholarly journals A Novel Terpolymer as Fluid Loss Additive for Oil Well Cement

2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Ming Li ◽  
Dongbo Xie ◽  
Zihan Guo ◽  
Ya Lu ◽  
Xiaoyang Guo
Keyword(s):  
Molecular Weight ◽  
Gel Permeation Chromatography ◽  
Fluid Loss ◽  
Oil Well ◽  
Gravimetric Analysis ◽  
Cement Slurry ◽  
Free Radical Copolymerization ◽  
Oil Well Cement ◽  
Well Cement ◽  
Fluid Loss Additive

A terpolymer comprised of sodium styrene sulfonate (SSS), fumaric acid (FA), and acrylamide (AM) was synthesized by aqueous free radical copolymerization and evaluated as fluid loss additive for oil well cement. The chemical structure and performance of the terpolymer were characterized by Fourier transform infrared (FTIR) spectroscopy and thermal gravimetric analysis (TGA); the molecular weight and its distribution were determined by gel permeation chromatography (GPC). The optimum reaction conditions of polymerization were obtained: a reaction temperature of 50°C, a mass ratio of SSS/FA/AM 4 : 2 : 14, initiator 0.1%, and reaction time of 4 h; characterization indicated that the SSS/FA/AM had a certain molecular weight and excellent temperature-resistant and salt-resistant properties. The results show that SSS/FA/AM has a good fluid loss performance, in which the API fluid loss of the oil cement slurry could be controlled within 100 mL at 160°C. In addition, it had little effect on the cement compressive strength. The results of scanning electron microscopy (SEM) of the filter cake showed that SSS/FA/AM could be adsorbed on the surface of the cement particles and produce a hydrated layer to prevent fluid loss from the oil well cement.

Influence of fluid loss additive on the characteristics of oil well cement slurries for pre-salt layer

2020 ◽  
Vol 20 (2020) ◽  
pp. 122-123
Author(s):  
Camila Aparecida Abelha Rocha ◽  
Vivian Karla Castelo Branco Louback Machado Balthar ◽  
Bruna Luiza Ferreira Brito ◽  
Caroline Santana Rangel ◽  
Romildo Dias Toledo Filho ◽  
...  
Keyword(s):  
Fluid Loss ◽  
Oil Well ◽  
Salt Layer ◽  
Oil Well Cement ◽  
Well Cement ◽  
Fluid Loss Additive

Adsorption behavior and mechanism of a copolymer used as fluid loss additive in oil well cement

2019 ◽  
Vol 198 ◽  
pp. 650-661 ◽  
Author(s):  
Di Chen ◽  
Jintang Guo ◽  
Yang Xu ◽  
Miaomiao Hu ◽  
Pengpeng Li ◽  
...  
Keyword(s):  
Adsorption Behavior ◽  
Fluid Loss ◽  
Oil Well ◽  
Oil Well Cement ◽  
Well Cement ◽  
Fluid Loss Additive

scholarly journals A Review of Potential Cementing Systems for Sealing and Support Matrices in Deep Borehole Disposal of Radioactive Waste

Energies ◽  
2019 ◽  
Vol 12 (12) ◽  
pp. 2393 ◽  
Author(s):  
Nicholas Charles Collier ◽  
Neil Brennan Milestone ◽  
Karl Patrick Travis
Keyword(s):  
Radioactive Waste ◽  
Fluid Loss ◽  
Oil Well ◽  
Deep Borehole ◽  
Oil Well Cement ◽  
Safety Case ◽  
Temperature And Pressure ◽  
Well Cement ◽  
Term Performance ◽  
Fluid Loss Additive

Cementitious grouts are being developed for use as sealing and support matrices (SSMs) in deep borehole disposal (DBD) where temperatures do not exceed 190 °C. They will seal radioactive waste containers into the bottom 2 km of holes drilled up to 5 km deep into the crystalline basement. The temperature and pressure is likely to be similar to those in hydrocarbon and geothermal energy wells, where grout placement and durability are affected. This paper reviews the potential cementing systems suitable for this application and explains why a single solution of a formulation of Class G oil well cement, silica flour, water, fluid loss additive, and retarding admixture has been selected. This type of formulation has been used extensively for over 100 years in well cementing. It should provide the short-term performance and durability required for an SSM, maintaining the seal around the waste packages within the disposal zone long after the boreholes are sealed back to the surface, and thus augmenting the safety case for DBD.

scholarly journals Effect of carboxylic group on the compatibility with retarder and the retarding side effect of the fluid loss control additive used in oil well cement

2018 ◽  
Vol 5 (9) ◽  
pp. 180490 ◽  
Author(s):  
Shenglai Guo ◽  
Yao Lu ◽  
Yuhuan Bu ◽  
Benlin Li
Keyword(s):  
Carboxylic Acid ◽  
Side Effect ◽  
Great Influence ◽  
Acid Group ◽  
Field Application ◽  
Fluid Loss ◽  
Oil Well ◽  
Oil Well Cement ◽  
Well Cement ◽  
Loss Control

The retarding side effect and the compatibility with other additives are the main problems that limit the field application of the synthesized fluid loss control additive (FLCA). The effect of the type and content of carboxylic acid groups on the retarding side effect of FLCA and the compatibility between FLCA and the retarder AMPS-IA synthesized using 2-acrylamido-2-methyl propane sulfonic acid (AMPS) and itaconic acid (IA) was studied in this paper. The type and content of carboxylic acid group have a great influence on the fluid loss control ability, the compatibility with retarder and the retarding side effect of FLCA. FLCA containing IA or maleic acid (MA) shows better compatibility with retarder than FLCA containing acrylic acid, but the retarding side effect of FLCA containing MA is weaker than that of FLCA containing IA. Thus, MA is the most suitable monomer for synthesizing FLCA having good compatibility with retarder AMPS-IA.

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