EXPERIMENTAL STUDY ON MEMBRANE EFFICIENCY OF SHALES THROUGH PORE PRESSURE TRANSMISSION MEASUREMENTS.

  • سال انتشار: 1399
  • محل انتشار: سومین کنفرانس دوسالانه نفت، گاز و پتروشیمی خلیج فارس
  • کد COI اختصاصی: OGPC03_075
  • زبان مقاله: انگلیسی
  • تعداد مشاهده: 202
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نویسندگان

w.n Aggrey

Department of Petroleum Engineering, Kwame Nkrumah University of Science and Technology, Kumasi, PMB, Ghana.. Petroleum Research Laboratories-Drilling Fluids Engineering, Kwame Nkrumah University of Science and Technology, Kumasi, PMB, Ghana.

n.y asiedu

Department of Chemical Engineering, Kwame Nkrumah University of Science and Technology, Kumasi, PMB, Ghana.

caspar daniel adenutsi

Department of Petroleum Engineering, Kwame Nkrumah University of Science and Technology, Kumasi, PMB, Ghana.

Hassan Karimaaie

Department of Petroleum Engineering, Kwame Nkrumah University of Science and Technology, Kumasi, PMB, Ghana.

Emmanuel Pinto

Petroleum Research Laboratories-Drilling Fluids Engineering, Kwame Nkrumah University of Science and Technology, Kumasi, PMB, Ghana.

چکیده

Membrane efficiency (ME) in shale drilling particularly with water-based drilling fluids (WBDFs) has gained strong research attention due to the impact of oil-based drilling fluids on the environment and the legal challenges it presents. A suite of experiments has been conducted on selected bio-based plants containing surfactant property. These surfactants are used to formulate water-based drilling fluids and their performances tested through a pore pressure transmission test. Results indicated that the type of membrane enhancer used in WBDFs affects the membrane efficiency of the shale-mud system. It also revealed that the saponin amount in the crude bio-surfactant used for the mud formulation correlates directly with the membrane efficiency and indirectly with the crude bio-surfactants critical micelle concentration (CMC). Crude bio-surfactant particle size was found to have an impact on membrane efficiency at low permeabilities than at high permeabilities. Depending on the bio-surfactant used membrane efficiencies were improved over several degree of percentages with the least improvement of ۳۵%.

کلیدواژه ها

Shale; Bio-Muds; Shale Instability; Pore Pressure; CMC

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