{"id":2219,"date":"2020-10-28T15:59:17","date_gmt":"2020-10-28T12:59:17","guid":{"rendered":"https:\/\/adcr.ru\/?p=2219"},"modified":"2020-10-28T16:01:04","modified_gmt":"2020-10-28T13:01:04","slug":"2019-4-2","status":"publish","type":"post","link":"https:\/\/adcr.ru\/en\/2019-4-2\/","title":{"rendered":"\"Bulletin of the Association of Drilling Contractors\" \u21164, 2019"},"content":{"rendered":"
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\"\"<\/strong><\/h3>\n

REMOVING THE FILTER CAKE OF DRILLING FLUIDS DURING THE ACID TREATMENT TAKING INTO ACCOUNT THE FRACTIONAL COMPOSITION OF THE CARBONATE FILLER<\/strong>

Suleimenov N.S. \u2013 Senior lecturer, Korkyt Ata Kyzylorda State University, nurzhan_suleymen@mail.ru nurzhan_suleymen@mail.ru<\/a>
<\/strong><\/em>Podgornov V.M. \u2013 Doctor of Technical Sciences, Professor, Gubkin Russian State University of Oil and Gas (National Research University), vpodgornov@bk.ru vpodgornov@bk.ru<\/a>

<\/strong><\/em>\u0423\u0414\u041a 622.24

Key words<\/strong>:colmatation, filter cake, crust permeability, sulfamic acid, acid treatment.

To increase the efficiency of removing the filter cake formed by the drilling fluid with carbonate colmatant, we studied the acid destruction of the filter cake depending on: the composition and concentration of acid; exposure regimen; fractional composition of the filler and its distribution in the structure of the filter cake. The conditions under which the most complete destruction of the filter cake on the surface of the walls of the well is ensured are established.<\/p>\n

REMOVING THE FILTER CAKE OF DRILLING FLUIDS DURING THE ACID TREATMENT TAKING INTO ACCOUNT THE FRACTIONAL COMPOSITION OF THE CARBONATE FILLER<\/strong>

Suleimenov N.S. \u2013 Senior lecturer, Korkyt Ata Kyzylorda State University, nurzhan_suleymen@mail.ru<\/a>
<\/em>Podgornov V.M. \u2013 Doctor of Technical Sciences, Professor, Gubkin Russian State University of Oil and Gas (National Research University), vpodgornov@bk.ru<\/a><\/em>
<\/em><\/strong>
<\/em><\/strong>Key words<\/strong>:colmatation, filter cake, crust permeability, sulfamic acid, acid treatment.

To increase the efficiency of removing the filter cake formed by the drilling fluid with carbonate colmatant, we studied the acid destruction of the filter cake depending on: the composition and concentration of acid; exposure regimen; fractional composition of the filler and its distribution in the structure of the filter cake. The conditions under which the most complete destruction of the filter cake on the surface of the walls of the well is ensured are established.<\/p>\n

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