Rheological properties of new polymer compositions for sand consolidation and water shutoff in oil wells

2007 ◽  
Vol 104 (4) ◽  
pp. 2076-2087 ◽  
Author(s):  
S. M. Lahalih ◽  
E. F. Ghloum
Keyword(s):  
Rheological Properties ◽  
Oil Wells ◽  
Water Shutoff

RHEOLOGICAL PROPERTIES OF HUMIC SUBSTANCES OF PEAT AND BROWN COAL

2021 ◽  
pp. 169-174
Author(s):  
Ivan I. Lishtvan ◽  
Vera N. Aleinikova
Keyword(s):  
Rheological Properties ◽  
Humic Substances ◽  
Structure Formation ◽  
Humic Substance ◽  
Brown Coal ◽  
Oil Wells ◽  
Alkaline Media ◽  
Rheological Parameters ◽  
Acid Media ◽  
Brown Coals

Knowledge about structure and rheological peculiarities of drilling solutions and reagents applied for the proceeding of oil wells has significant value for the forecasting of oil wells drilling. The research results of the structure of the humic substances of peat and brown coals precipitated in different pH ranges from the standpoint of their ability to structure formation on the base of the rheological curves obtaining of the flow of their dispersions and determining of their rheological parameters in terms of their application in drilling practice are given in the article. It is established that during transition from fraction, beset into alkaline media (12.0–8.5) to fraction beset into acid media (5.0–2.0) the decrease of the rheological indicators of caustobiolate humic substance is occurred. Rheological curves of the flow of the disperse of caustobiolate humic substances of the fraction 1 and 2 are characterized for strong fossil structures, disperses of humic substances of the fraction 3 is for less strong coagulation structures. Less structured are humic substances of brown coal so that their use is preferable for the regulation of the structure and rheological peculiarities of drilling solutions.

Development of a Polyacrylamide-Based Mud Formulation for Loss Circulation Treatments

2020 ◽  
Vol 143 (7) ◽  
Author(s):  
Musaab I. Magzoub ◽  
Saeed Salehi ◽  
Ibnelwaleed Hussein ◽  
Mustafa Nasser
Keyword(s):  
Rheological Properties ◽  
New Technologies ◽  
High Water ◽  
Fluid Loss ◽  
Drilling Fluids ◽  
Water Production ◽  
Large Size ◽  
Water Shutoff ◽  
Rheological Method ◽  
Selection Of

Abstract Loss circulation materials in the last two decades have witnessed a lot of developments and implementations. New technologies and materials are introduced to treat various types of loss zones. However, the success rate is still very low due to many uncertainties in the selection of types and particle size of the bridging materials. In addition, there are many operational restrictions such as the risk of plugging and pumping difficulties when large size of particle is needed, especially in deep-water drilling. In this study, polyacrylamide (PAM) crosslinked with polyethylenimine (PEI) is introduced as polymer-based mud for loss circulation treatment. The PAM/PEI systems have wide applications in water shutoff for high water production zones and are known for their strong gel and exceptional rheological properties. This study provides a rheological method for screening of PAM/PEI-based drilling formulation with optimized molecular weight and concentrations. Comparative analysis of rheology of non-crosslinked and crosslinked polyacrylamide with other drilling fluids additives as well as proper mixing procedures are provided. The results achieved in this study are used as a strong tool to design a polymer-based mud with competitive rheological properties which achieved an 80% reduction in fluid loss when compared with other conventional loss circulation materials.

Organofilization of Smectite Clay from Pedra Lavrada, PB, with Nonionic Surfactant

2014 ◽  
Vol 805 ◽  
pp. 480-485
Author(s):  
Isabelle Albuquerque Silva ◽  
Alexsandra Cristina Chaves ◽  
Julliana Marques Rocha Figueirêdo ◽  
Carla Dantas Silva ◽  
Gelmires Araújo Neves ◽  
...  
Keyword(s):  
Nonionic Surfactant ◽  
Rheological Properties ◽  
Petroleum Industry ◽  
Oil Wells ◽  
Drilling Fluids ◽  
X Ray Diffraction ◽  
Smectite Clay ◽  
X Ray ◽  
Water Based ◽  
Mineral Production

The petroleum industry has been investing for many years in the use of smectite as dispersant agent in the composition of oil-based and water-based fluids for drilling oil wells. The State of Paraíba is one of the largest producers of such clays and new deposits have been recently discovered in the regions of Cubati and Pedra Lavrada, causing many expectations for the expansion of the national mineral production. The objective of the present work is the organofilization of smectite clay from Pedra Lavrada, PB, through the addition of nonionic surfactant. After organofilization, the clay was characterized through X-ray diffraction and Foster swelling, so that the most suitable surfactant could be chosen for diesel as organic dispersant media. The results show that the incorporation of the surfactant used with the clay caused a significant increase in the interlamellar distance, and that the dispersions presented rheological properties that meet Petrobras' specifications for the use of organoclays in non aqueous based drilling fluids. Keywords: Smectite, drilling fluids, organofilization.

Bulk and rheological properties of polyacrylamide hydrogels for water shutoff treatment

2014 ◽  
Vol 31 (3) ◽  
pp. 532-539 ◽  
Author(s):  
Asefe Mousavi Moghadam ◽  
Mohsen Vafaie Sefti ◽  
Mahsa Baghban Salehi ◽  
Hasan Naderi
Keyword(s):  
Rheological Properties ◽  
Polyacrylamide Hydrogels ◽  
Water Shutoff

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.

Study of the rheological properties of the water-swelling polyacrylamide grade FS 305 for development technologies of waterproofing works at oil wells

2006 ◽  
Vol 4 ◽  
pp. 207-223
Author(s):  
A.G. Telin ◽  
T.I. Zainetdinov ◽  
M.E. Khlebnikov
Keyword(s):  
Rheological Properties ◽  
Rheological Behavior ◽  
Polymer Solutions ◽  
Oil Wells ◽  
Multiphase Systems ◽  
Water Swelling

The use of limited swelling polymers on The basis of polyacrylamide in waterproofing operations at oil wells. The rheological behavior of complex multiphase systems is discussed, combining the properties of polymer solutions, microgel structures and dispersions. A detailed description of the methodology and results of research rheological properties of suspensions of superabsorbent FS 305.

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