Characteristics of Malaysian Crude Oils and Measurement of ASP Flooded Water in Oil Emulsion Stability and Viscosity in Primary Separator

Round 1

Reviewer 1 Report

Please add information about composition of oil which was used during the experiment.

Please add information about alkali  and polymer density (Table 1).

Please add general information about Malaysia’s fields.

There is a lack of discussions with other researchers in Results part.

There is a number of typographical errors: “. [7,8].”, “. [9].”, “Table.1”, “Table.2”,  “0s-1 to 100s-1”, “mpa.s” etc.

Please check the numbering of the references and formulas.

Please check whether all the formulas are written correctly: ”RCH (OH) (CH2)n SO3Na”, “CaCl2(H2O)2” etc.

All Figures should be described in the text. Figures 1,  2, 3 and 4 should be described.

Please add the titles of the axis in Figure 6.

Please specify the meanings of a, b and c in Table 5.

Figures 11 and 15 quality is not sufficient

Please check the text of the Table 8.

Please clarify Figure 15: where is i, ii and iii?

Author Response

Please see the attachment

Author Response File: Author Response.docx

Reviewer 2 Report

This manuscript is about the effect of the alkali, surfactant and polymer injection for enhanced oil recovery application in relation with composition, water cut, separation time, and the separation process temperature. The authors are presented the influence of different percentages of alkali, surfactant and polymer injection on separation and stabilization in terms of water percentage at different time intervals.

The manuscript is very well organized where introduction and objectives are well and clear written. The materials and methods are given in details. The results obtained and presented in tables and figures are relevant to the proposed objectives. The conclusions are supported by the results.

Before accepting of the manuscript, some parts presented in Comments and Suggestions for Authors, have to be corrected:

line

 4-6       have to be in bold

4          Waqas Aleem ^5* ,       >          Waqas Aleem ^5,* ,

5-6       Mohammad Rozali ⁶ , Sabih Qamar ⁷ , Abdulnour Ali Jazem Ghanim ⁸ , Dobrochna Ginter-Kramarczyk ⁹ , Stanislaw Legutko ¹⁰ , Izabela Kruszelnicka ¹¹

>          Mohammad Rozali ⁴ , Sabih Qamar ⁶ , Abdulnour Ali Jazem Ghanim ⁷ , Dobrochna Ginter-Kramarczyk ⁸ , Stanislaw Legutko ⁹ and Izabela Kruszelnicka ⁸

9          (M.I); [email protected] (S.R)     >          (M.I.)

                        ([email protected] (S.R) is not author)

10        key      >          Key

15        (S.W.) >          (S.W.); [email protected] (N.E.M.R.)

18-19   delete  (same affiliation exist as ⁴)

20        ⁷          >          ⁶

22        ⁸          >          ⁷

24        ⁹          >          ⁸

25        (D.G.K)          >          (D.G.K.); [email protected] (I.K.)

26        ¹⁰         >          ⁹

27        (S.L)    >          (S.L.)

28-29   delete  (same affiliation exist as ⁹ – lines 24-25)

31        (J.A.K)            >          (J.A.K.)

46        Alkali/Surfactant/Polymer; Rheology; Emulsion stability; Water in oil emulsion

            >          alkali/surfactant/polymer; rheology; emulsion stability; water in oil emulsion

50,69,75, ...     [1, 2]    >          [1,2]    without space between comma and number

61        time. [9].         >          time [9].

88        Table.1 and Table.2    >          Table 1 and Table 2

90        Table 2:

            heading of the table is not correctly made

CaCl₂(H2O)₂  >          CaCl₂(H₂O)₂

            unify property names:

                        Asphaltenes Content, wt%

                        Wax Content (wt %)

            columns g/L and Total amount (g) are completely equal; is it correct?

120,168, ...      all figure captions have to be aligned left

141      neteorkd          >          ?

166      in Figure 5, dark green labels:            4th, ...  >          4^th , ...

175-176          unify name of tangent function: Tan H (line 175) or tanh (equation)

176      missing label of the equation (1) that have to be aligned right

177      delete  (3)

178      Where   >        where              (align left, not a new paragraph)

189      Table 4:

            heading of the table is not correctly made

            training and validation values are completely equal; is it correct?

238      if superscripts a, b and c are used in the table (column Sample), please write below the table meanings of the superscripts

264      Table 6, heading of the table is not correctly made

266,270           use superscripts like in the heading of the table

268      Table 7, heading of the table is not correctly made

289      Table 8, heading of the table is not correctly made

342-347          Author Contributions have to be written according to the Instructions for Authors

360-412          References have to be written according to the Instructions for Authors

Author Response

Please see the attachment

Author Response File: Author Response.docx

Round 2

Reviewer 1 Report

The manuscript has been significantly improved, and I appreciate the authors' efforts to respond to the comments. I recommend that the manuscript be published as it is.