Influence of ionic hydration inhibitors on triple inhibition system mud properties - technological parameters

• Autorzy: Gaczoł M.

Identyfikatory

DOI

10.7494/drill.2017.34.1.95

• Języki publikacji: EN

Abstrakty

EN

Clay rock hydration is primary reason of borehole wall instability during drilling. In correspondence to this fact, it is substantial to counteract abovementioned phenomenon. It can be achieved e.g. applying ionic hydration inhibitors in the drilling mud formula. From the point of view of drilling effectiveness, the most practical is water based inhibitive mud. Its stabilizing properties are partially effect of soluble salts and low concentrations of polymer. This type of the mud exhibits good rheological properties and causes, in most of cases, increased rate of penetration (ROP). Ionic inhibition contribute to reduction of both dispersion and hydration of clay rock due to decreased instability of shales containing swelling clays. Hydration degree depends on the type and concentration of inhibitive ions in the drilling mud. This paper describes studies on influence of the chosen inhibitors (KCl, K2CO3 , HCOOK, CaCl2) on technological parameters of the developed drilling muds with triple inhibition system. Obtained results indicate good parameters of the mud. For HCOOK and CaCl2 increase of the inhibitor concentration causes major changes in mud parameters, however for K2CO3 and KCl those parameters do not change significantly.

Słowa kluczowe

EN

drilling fluids; ionic hydration inhibitors; clays and shales

• Wydawca: AGH University of Science and Technology Press
• Czasopismo: AGH Drilling, Oil, Gas
• Rocznik: 2017
• Tom: Vol. 34, no. 1
• Strony: 95--101
• Opis fizyczny: Bibliogr. 5 poz., tab., wykr.

Twórcy

autor

Gaczoł M.

• AGH University of Science and Technology, Faculty of Drilling, Oil and Gas, Krakow, Poland - PhD student

Bibliografia

• [1] Raczkowski J., Półchłopek T.: Materiały i środki chemiczne do sporządzania płuczek wiertniczych. Prace Instytutu Górnictwa Naftowego i Gazownictwa, nr 95, Kraków, 1998.
• [2] Bielewicz D.: Płyny wiertnicze. Wydawnictwa AGH, Kraków 2009.
• [3] Schulze D.G.: Clay Minerals. Elselvier Ltd., Oxford 2005.
• [4] API Specification 13B-2, 5th ed., April 2014.
• [5] Wysocki S.: Influence of ionic hydration inhibitors on triple inhibition system mud properties - clay rock swelling. AGH Drilling, Oil, Gas, vol. 34, No. 2, 2017.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).