0

Full Content is available to subscribers

Subscribe/Learn More  >

Evaluate the Effect of pH on the Mixed Brine and Chemical Solutions

[+] Author Affiliations
Cody Chancellor, Connor Kirby, Mahmoud Elsharafi

Midwestern State University, Wichita Falls, TX

Paper No. IMECE2016-68043, pp. V06BT08A020; 8 pages
doi:10.1115/IMECE2016-68043
From:
  • ASME 2016 International Mechanical Engineering Congress and Exposition
  • Volume 6B: Energy
  • Phoenix, Arizona, USA, November 11–17, 2016
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5059-6
  • Copyright © 2016 by ASME

abstract

The purpose of this study is to observe the effects of a superabsorbent polymer (SAP) when it is introduced to brine solutions containing Calcium ions at varying pH values. When injected into an oil well, a superabsorbent polymer will swell, blocking high permeability zones. The swelled polymer will decrease reservoir heterogeneity, diverting injected water to oil rich zones/areas of the formation. Understanding the kinetics of an SAP is crucial to its proper employment. However, when the polymer is introduced to brine solutions containing calcium, reactions involving the ionization of the sodium crosslinker of the polymers result in the destruction of the polymers and the formation of a precipitate. In an attempt to solve this problem, pH values of various concentrations of Calcium Chloride and Sodium Chloride in deionized water solutions will be varied and introduced to polymer samples to determine if lowering the pH can prevent precipitation. The procedure includes first introducing hydrochloric acid to brine mixtures, mixing and agitating the polymer with the brine solution, and lastly recording the results. The measurements to be recorded will include the volume of the polymers before, during, and after the swelling process. From this data, the swelling ratios of the polymer samples will be calculated, graphed, and contrasted appropriately according to time intervals and the pH of each sample. By following this procedure, the data shows that a very low pH can significantly inhibit the extent to which the polymer precipitates out with Calcium ions. Temperature tends to decrease polymer volume in brines with pH values above the 1–2 pH range, while pH values in or below said range increase in volume substantially.

Copyright © 2016 by ASME

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In