Influence of the flocculation effect on the rheological properties of cement slurry

2022 ◽  
pp. 117118
Author(s):  
Chunyu Zhang ◽  
Rentai Liu ◽  
Mengjun Chen ◽  
Jinglong Li ◽  
Xiaochen Wang ◽  
...  
Keyword(s):  
Rheological Properties ◽  
Cement Slurry ◽  
Flocculation Effect

The Equation of the Limit Replacement Width of Non-Newton Fluid in Eccentric Annulus

2013 ◽  
Vol 807-809 ◽  
pp. 2616-2619
Author(s):  
Yin Qing Liu ◽  
Mei Wei Wang ◽  
Hai Qing Cui
Keyword(s):  
Numerical Solution ◽  
Rheological Properties ◽  
Power Law ◽  
Solution Method ◽  
Cement Slurry ◽  
Power Law Fluid ◽  
Two Phase ◽  
Numerical Solution Method ◽  
Eccentric Annulus ◽  
The One

The equation of the limit replacement width of the one-dimension two-phase flow of Bingham fluid replacing Power law fluid in eccentric annulus was established, the numerical solution method of the equation mentioned above was given and taking the 3 wells, such as the He 104-27 well etc for examples, the limit replacement widths of cement slurry displacing mud, whose rheological properties can be described as Bingham and Power law modles respectively, were calculated, by using the equation and the numerical solution method mentioned above, and compared with those of cement slurry displacing mud, whose rheological properties are all described as Binghanm modle.

scholarly journals Analyzing Cement Rheological Properties Using Different Additive Schemes at High Pressure and High Temperature Conditions

2020 ◽  
Vol 39 (3) ◽  
pp. 466-474
Author(s):  
Khalil Rehman Memon ◽  
Aftab Ahmed Mahesar ◽  
Shahzad Ali Baladi ◽  
Muhannad Talib Sukar
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
Rheological Properties ◽  
Silica Fume ◽  
Gel Strength ◽  
Water Quantity ◽  
Fluid Loss ◽  
Cement Slurry ◽  
Three Samples ◽  
Loss Control

The experimental study was conducted on rheological properties in laboratory to measure the integrity of cement slurry. Three samples were used and analyzed at different parameters to check the elasticity of cement slurry. Additives with various concentrations, i.e. silica fume % BWOC (Present by Weight on Cement) (15, 17, 19 and 21), dispersant % Wt (Percent Weight) (0.21, 0.26 and 0.31) and additional 1; % Wt of fluid losscontrol were used to improve the performance of the cement slurry at the temperature of 123oC. The results have shown that increase in the concentration of dispersants that have caused to decrease in the Plastic Viscosity (PV), Yield Point (YP) and GS (Gel Strength). The rheological properties of cement were improved with the addition of fluid loss control additive in 21 % BWOC (Present by Weight on Cement) silica fume increase the water quantity in cement slurry that improve its durability and to reduce the strength retrogression in High Temperature High Pressure (HTHP) environment. Results were achieved through HTHP OFITE Viscometer (Model 1100).

scholarly journals Effect of polycarboxylate superplasticizer on fluidity and rheology of cement slurry containing silica fume

2021 ◽  
Vol 237 ◽  
pp. 03008
Author(s):  
Qingen Meng ◽  
Juan He ◽  
Congmi Cheng ◽  
Xiaofen Zhu
Keyword(s):  
Rheological Properties ◽  
Yield Stress ◽  
Silica Fume ◽  
Plastic Viscosity ◽  
Cement Slurry ◽  
Pseudoplastic Fluid ◽  
Plasticizer Content ◽  
Polycarboxylate Superplasticizer ◽  
Dispersion Degree ◽  
Fluid Characteristic

The effect of polycarboxylate superplasticizer on the fluidity and rheology of cement - silica fume - water paste was investigated. The changes of dispersion degree, yield stress and plastic viscosity of paste with different superplasticizer content were analyzed. The results show that the rheological properties of paste with different superplasticizer content conform to Herschel-Bulkley model. The shear thinning of the slurry is manifested as a typical yielding pseudoplastic fluid characteristic. When the content of superplasticizer is less than 1.0%, the plastic viscosity and yield stress decrease and the fluidity increase with the increase of plasticizer content. When the content of superplasticizer is more than 1.0%, the yield stress decreases slightly and the plastic viscosity increases with the increase of plasticizer content. The fluidity decreases with the increase of yield stress, and there is a good correlation between them.

Effect of Nanostructured TiO2 on Rheological Properties of Fresh Cement Slurry

2020 ◽  
Vol 20 (8) ◽  
pp. 4907-4913
Author(s):  
Zhenning Shi ◽  
Shuangxing Qi ◽  
Ling Zeng
Keyword(s):  
Rheological Properties ◽  
Great Influence ◽  
Growth Period ◽  
X Ray Diffraction ◽  
Cement Slurry ◽  
X Ray ◽  
Stable Period ◽  
Content Variation ◽  
Reasonable Range ◽  
Series Of Experiments

Rheological properties have a great influence on mechanical behavior and durability of fresh cement slurry after construction and hardening. For this reason, a series of experiments were carried out in this study to investigate the effects of different nanostructured TiO2 (NT) contents on rheological properties of nanostructured TiO2-cement (NTC) composite slurries. Moreover, the microstructure of NTC was analyzed by means of scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD). Results showed that the shear stress was increased followed by increased NT content. Variation of viscosity with time was divided into initial decline period, initial stable period, growth period and final stable period. During the first two periods, the viscosity decreased first and then increased with increased NT content. Moreover, the viscosity showed a reverse variation during the latter two periods. In addition, it was also noted that the reasonable range for NT content of cement slurry was 0%–1.5%.

scholarly journals STUDY OF THE COMPATIBILITY OF A DRILLING FLUID FORMULATED IN A MICROEMULSIONED SYSTEM WITH CEMENT SLURRY

2020 ◽  
Vol 8 (3) ◽  
pp. 1-9
Author(s):  
Fabíola D. S. Curbelo ◽  
Giovanna Laís R. Leal ◽  
Alfredo Ismael C. Garnica ◽  
Raphael R. Silva ◽  
Tarsila M. Tertuliano ◽  
...  
Keyword(s):  
Compressive Strength ◽  
Chemical Composition ◽  
Rheological Properties ◽  
Drilling Fluid ◽  
Cement Slurry ◽  
Efficient Removal ◽  
Compatibility Test ◽  
Visual Changes

In the cementing operation, it is necessary that the entire circumference of the annular is filled by the cement slurry and that it develops adhesion to the casing and formation. For this, an efficient removal of the drilling fluid is necessary, which requires that its chemical composition is compatible with that of the cement slurry. The objective of this work is to formulate a drilling fluid in a micro emulsified system and test its compatibility with the cement slurry to assess the effects that an unwanted contamination can have on the properties of the slurry. In the compatibility test, the rheological properties and the compressive strength of cement slurry contaminated with drilling fluid in different volumetric proportions were evaluated. The compressive strength of the cement slurry was determined, and the loads that the paste supports were checked. The compatibility test showed no visual changes in the properties of the slurry, although, after the addition of the drilling fluid, there was a decrease in the compressive strength.

Improving Oil well Cement Slurry Performance Using Hydroxypropylmethylcellulose Polymer

2013 ◽  
Vol 787 ◽  
pp. 222-227 ◽  
Author(s):  
Ghulam Abbas ◽  
Sonny Irawan ◽  
Sandeep Kumar ◽  
Ahmed A.I. Elrayah
Keyword(s):  
Compressive Strength ◽  
High Temperature ◽  
Rheological Properties ◽  
Elevated Temperatures ◽  
Free Water ◽  
Oil Wells ◽  
Fluid Loss ◽  
Cement Slurry ◽  
Multifunctional Additive ◽  
Wide Range

At present, high temperature oil wells are known as the most problematic for cementing operation due to limitations of polymer. The polymers are significantly used as mutlifunctional additives for improving the properties of cement slurry. At high temperature, viscosity of polymer decreases and unable to obtained desired properties of cement slurry. It becomes then major cause of fluid loss and gas migration during cementing operations. Thus, it necessitates for polymers that can able to enhance viscosity of slurry at elevated temperatures. This paper is aiming to study Hydroxypropylmethylcellulose (HPMC) polymer at high temperature that is able to increase the viscosity at elevated temperature. In response, experiments were conducted to characterize rheological properties of HPMC at different temperatures (30 to 100 °C). Then it was incorporated as multifunctional additive in cement slurry for determining API properties (fluid loss, free water, thickening time and compressive strength). It was observed that HPMC polymer has remarkable rheological properties that can have higher viscosity with respect to high temperatures. The best concentration of HPMC was found from 0.30 to 0.50 gallon per sack. This concentration showed minimal fluid loss, zero free water, high compressive strength and wide range of thickening time in cement slurry. The results signified that HPMC polymer is becoming multifunctional additive in cement slurry to improve the API properties of cement slurry and unlock high temperature oil wells for cementing operations.

scholarly journals Rheological properties measurement of Mucuna solannie as cement slurry extender: characterization and verification using rheological models

2020 ◽  
Vol 9 (4) ◽  
pp. 842
Author(s):  
Igwilo K. Chinwuba ◽  
Uwaezuoke Nnaemeka ◽  
Onyebuchi Nwanwe ◽  
Amaefule C. Vivian ◽  
Abubakar U. Raji
Keyword(s):  
Rheological Properties ◽  
Yield Point ◽  
Gel Strength ◽  
High Carbon ◽  
Cement Slurry ◽  
Atomic Concentration ◽  
Rheological Models ◽  
Bingham Plastic ◽  
X Ray ◽  
Better Than

Rheological properties of lead cement slurry with Mucuna solannie admixture as an extender was measured in accordance with API standard. Bentonite extender was used as a control. The elemental and oxide compositions of Mucuna solannie were determined using Scanning Electron Microscope and X-Ray Florescence (XRF) methods, and rheological properties were obtained using rheometer after conditioning. The rheological data from Mucuna solannie and bentonite lead slurries were validated using Bingham Plastic and Herschel-Bulkley models. The result showed that Mucuna solannie contains high carbon atomic concentration and is responsible for its high rheological properties values. Lead slurry prepared with Mucuna solannie gave higher plastic viscosity, yield point and gel strength than that of bentonite. Herschel-Bulkley model described the rheological properties better than Bingham Plastic model. Due to high rheological properties values of the slurry prepared with Mucuna solannie, dispersant is needed for the optimization of the yield point and gel strength. 

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