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Keywords: polymer
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Proceedings Papers

Paper presented at the SPE International Conference and Exhibition on Formation Damage Control, February 19–21, 2020
Paper Number: SPE-199318-MS
... The rheological and API fluid-loss data for sodium-chloride-based RDFs are shown in Table 4 . Identifying functional additives in divalent calcium brines can be more challenging. Low free water, which makes it more difficult to hydrate polymers, and the tendency of divalent ions to...
Proceedings Papers

Paper presented at the SPE International Conference and Exhibition on Formation Damage Control, February 19–21, 2020
Paper Number: SPE-199333-MS
... crosslinked with polyethyleneimine (PEI), these polymers have wide range of molecular weights and environment friendly, in addition the their relatively low cost. ( El-karsani et al., 2014 ). Polyacrylamide (PAM) is a simple chemical structure of acrylamide, synthesized by polymerization of acrylamide monomer...
Proceedings Papers

Paper presented at the SPE International Conference and Exhibition on Formation Damage Control, February 19–21, 2020
Paper Number: SPE-199312-MS
... Abstract Many gas wells in Adriatic Sea are suffering from both water and sand production. An original sand control polymer technology has been successfully implemented and has proven to be an efficient way to stop sand production and thus maintain gas well under steady production. In many...
Proceedings Papers

Paper presented at the SPE International Conference and Exhibition on Formation Damage Control, February 19–21, 2020
Paper Number: SPE-199271-MS
... play essential and ubiquitous roles in everyday life. Polymers range from familiar synthetic plastics such as polystyrene to natural biopolymers such as DNA and proteins that are fundamental to biological structure and function. Polymers, both natural and synthetic, are created via polymerization of...
Proceedings Papers

Paper presented at the SPE International Conference and Exhibition on Formation Damage Control, February 19–21, 2020
Paper Number: SPE-199258-MS
... that crosslinks the polymer in the general pH range of 1 to 3.2. Experiments were performed to show the efficiency of the crosslinker with 20 wt% HCl acid for temperatures up to 275°F. Several experiments were performed during this study to assess the performance of the new metallic-based...
Proceedings Papers

Paper presented at the SPE International Conference and Exhibition on Formation Damage Control, February 19–21, 2020
Paper Number: SPE-199311-MS
... polymerization of acrylamide monomer with or without additional comonomers. The literature frequently describes these polymers as partially hydrolyzed polyacrylamide (PHPA) which means that the polymers contain blocks of acrylic acid on the polymer backbone. The amount of carboxyl groups in the polymers is...
Proceedings Papers

Paper presented at the SPE International Conference and Exhibition on Formation Damage Control, February 19–21, 2020
Paper Number: SPE-199334-MS
... Abstract A novel branched synthetic polymer capable of changing the relative permeability of water and oil in a formation was developed. The new polymer has the capacity to anchor to the sandstone formation, allowing it to endure production fluid flow. Thermal aging tests were conducted to...
Proceedings Papers

Paper presented at the SPE International Conference and Exhibition on Formation Damage Control, February 7–9, 2018
Paper Number: SPE-189534-MS
... known as possible alternatives, the different polymer gels became the most appreciated methods in routine application. Already two decades ago, Seright (1998) disseminated data for practical applications pointing out that the chromium PHPAA gels represented 76% in the worldwide projects. Recently, the...
Proceedings Papers

Paper presented at the SPE International Conference and Exhibition on Formation Damage Control, February 24–26, 2016
Paper Number: SPE-178976-MS
... solvent is the viscosity of solvent (water), M is the average molecular weight of the polymer, c is the concentration of polymer (MCDP), R is the gas constant, T is the temperature in Kelvin. where a and b are curve fitting parameters for the logarithmic linear relationship. (2) β...
Proceedings Papers

Paper presented at the SPE International Conference and Exhibition on Formation Damage Control, February 24–26, 2016
Paper Number: SPE-178937-MS
... particles, whereas to limit water production after the treatment requires a disproportionate permeability modifier (DPM). However, the adsorption of conventional cationic low-viscosity DPM polymers is often limited in carbonates. This led to the development of a viscous zwitterionic DPM (ZDPM) fluid to both...
Proceedings Papers

Paper presented at the SPE International Conference and Exhibition on Formation Damage Control, February 24–26, 2016
Paper Number: SPE-178985-MS
... Figure 1 Effect of crepe myrtle (A), live oak (B) and St. Augustine grass (C) chlorophyll on cross-linked high-yield guar polymer viscosity. Control reaction in Fig. 1A is 22ppt high yield cross-linked guar without any breaker to serve as negative control. Results showed dose dependent...
Proceedings Papers

Paper presented at the SPE International Conference and Exhibition on Formation Damage Control, February 24–26, 2016
Paper Number: SPE-178986-MS
... that allowed safe and successful execution of a mechanical de-scaling operation without using CaCO3 chips. Temporary gel plugs are normally polymers dispersed in water that can be either crosslinked or non-crosslinked. Well variables like well configuration, bottom-hole temperature; desired plug...
Proceedings Papers

Paper presented at the SPE International Conference and Exhibition on Formation Damage Control, February 24–26, 2016
Paper Number: SPE-179000-MS
... permeability caused by wettability preferences. A chemical treatment was proposed that consisted of crude oil with efficient and effective surface active additives, such as microemulsions (MEs) and/or formation mobility modifiers (FMMs) and associative polymers (APs) for a proper diversion. The treatment was...
Proceedings Papers

Paper presented at the SPE International Conference and Exhibition on Formation Damage Control, February 24–26, 2016
Paper Number: SPE-179029-MS
..., when proppant layers are fewer in the pack. Figure 1 Benchtop permeability measurement setup Abstract Polymer gels used in hydraulic fracturing to generate fracture geometry and ensure proppant transport are also known to damage the proppant pack permeability, and this damage reduces...
Proceedings Papers

Paper presented at the SPE International Conference and Exhibition on Formation Damage Control, February 24–26, 2016
Paper Number: SPE-179012-MS
... between Product A and guar gel, it can be seen that samples of guar gel show significant amounts of unbroken polymer floating at the top of the sample. The Product A sample appears to look as you would expect from a PAM polymer and has similar broken viscosity to that of the guar gel. The results of this...
Proceedings Papers

Paper presented at the SPE International Conference and Exhibition on Formation Damage Control, February 24–26, 2016
Paper Number: SPE-179040-MS
... disperse non-hydrogen bonding asphaltenes when used in sufficient amounts (i.e., 30 wt%). The interactions between hydrogen bonding asphaltenes and PVAc polymer (5 wt%) significantly reduced their aggregation but lowered the solubility of the polymer in sc-CO 2 . Adding limonene to this mixture could...
Proceedings Papers

Paper presented at the SPE International Symposium and Exhibition on Formation Damage Control, February 26–28, 2014
Paper Number: SPE-168176-MS
... cationic polyacrylamide polymers used to treat predominantly sandstone reservoirs; they are usually pumped into the formation as low-viscosity systems in matrix jobs. Essentially, these polymers increase the irreducible water in pore spaces, which decreases the effective permeability of the formation to...
Proceedings Papers

Paper presented at the SPE International Symposium and Exhibition on Formation Damage Control, February 26–28, 2014
Paper Number: SPE-168192-MS
... formation. As such, key parameters that would make a fluid system a preferable option over guar are the reduction of polymer necessary to achieve desired fluid stability, as well as the ability to perform in diversified water sources such as produced water. In order to meet this demand, a low pH fracturing...
Proceedings Papers

Paper presented at the SPE International Symposium and Exhibition on Formation Damage Control, February 26–28, 2014
Paper Number: SPE-168193-MS
... fracturing materials hydraulic fracturing produced water discharge proppant polymer Upstream Oil & Gas viscosity bottle test fracturing fluid precipitation Water Use scale inhibitor hydration scale inhibitor 2 society of petroleum engineers inhibitor stability linear gel...
Proceedings Papers

Paper presented at the SPE International Symposium and Exhibition on Formation Damage Control, February 26–28, 2014
Paper Number: SPE-168204-MS
... polymers and reduce viscosity by producing free radicals. They could be used to break many different types of polymerssuch as guar, derivatized guar, and polymeric friction reducers. However, they react very rapidly, especially at high temperatures, and may cause premature breaking. Encapsulation of...

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