Nghiên cứu đánh giá, lựa chọn và chế tạo hệ hóa phẩm VPI SP để áp dụng thử nghiệm công nghiệp nhằm nâng cao hệ số thu hồi dầu cho mỏ dầu tại bể Cửu Long, thềm lục địa Việt Nam

0 Người đánh giá. Xếp hạng trung bình 0

Tác giả: Thị Việt Nga Cù, Đức Huy Đinh, Long Hoàng, Thế Hùng Lê, Thị Thu Hường Lê, Minh Quý Nguyễn, Trường Giang Phạm, Vũ Anh Phan, Thanh Phương Trần

Ngôn ngữ: vie

Ký hiệu phân loại: 665.54 Storage, transportation, distribution

Thông tin xuất bản: Dầu khí, 2021

Mô tả vật lý: 45 - 54

Bộ sưu tập: Metadata

ID: 498033

Thêm vào giỏ

The Vietnam Petroleum Institute (VPI) is implementing a multi-task national level project entitled "Research, evaluate, select and develop a pilot programme for industrial application of solutions to improve oil recovery coefficient for clastic oil bearing reservoirs of oil fields in the Cuu Long basin, on the continental shelf of Vietnam". Specifically, detailed evaluation studies have been carried out from geological characteristics, reservoir engineering, production to EOR mechanism to develop technical criteria for the process of manufacturing and evaluating the efficiency of the chemical system to optimise the laboratory scale, propose the production and injection scenarios to optimise the development plan as well as evaluate the efficiency of increasing oil recovery coefficient on the reservoir simulation model
conduct production at pilot scale and implement industrial application testing on the field scale for clastic oil bearing reservoir, Cuu Long basin. The article presents the results of research, evaluation, selection and successful manufacture of a VPI SP chemical system based on the combined mechanism of anionic - non-ionic surfactants and polymers to ensure satisfying the harsh technical requirements of oil fields in Vietnam such as resistance to high temperature, high pressure, high mineralisation, very low surface tension, optimal micro-emulsion, low adsorption onto reservoir rocks, reducing residual oil saturation in the reservoir. Results of the evaluation of increased efficiency of oil recovery on actual samples of Miocene reservoir showed an increase of over 21%. The VPI SP chemical system has been included in the plan of industrial-scale testing by Vietsovpetro in Bach Ho and other producing fields in the clastic sections of the Cuu Long basin.Viện Dầu khí Việt Nam đang triển khai thực hiện cụm nhiệm vụ cấp Quốc gia "Nghiên cứu, đánh giá, lựa chọn và xây dựng chương trình thử nghiệm, áp dụng công nghiệp các biện pháp nâng cao hệ số thu hồi dầu cho đối tượng trầm tích lục nguyên của các mỏ dầu tại bể Cửu Long, thềm lục địa Việt Nam". Các nghiên cứu đánh giá chi tiết đã được tiến hành, từ đặc trưng địa chất, công nghệ mỏ, khai thác đến cơ chế nâng cao hệ số thu hồi dầu để xây dựng các tiêu chí kỹ thuật cho quá trình chế tạo, đánh giá hiệu quả hệ hóa phẩm tối ưu quy mô phòng thí nghiệm, xây dựng kịch bản khai thác và bơm ép nhằm tối ưu hóa phương án triển khai cũng như đánh giá hiệu quả gia tăng hệ số thu hồi dầu trên mô hình mô phỏng khai thác, tiến hành sản xuất ở quy mô pilot và triển khai áp dụng thử nghiệm công nghiệp trên phạm vi mỏ cho đối tượng trầm tích, bể Cửu Long. Nội dung bài báo trình bày các kết quả nghiên cứu đánh giá, lựa chọn và chế tạo thành công hệ hóa phẩm VPI SP dựa trên cơ chế tổ hợp của các chất hoạt động bề mặt anion - không ion kết hợp đồng thời với polymer đảm bảo đáp ứng các yêu cầu kỹ thuật khắc nghiệt của các mỏ dầu ở Việt Nam như chịu được nhiệt độ cao, áp suất cao, khoáng hóa cao, giảm sức căng bề mặt xuống rất thấp, tạo hệ vi nhũ tương tối ưu, hấp phụ lên đá vỉa thấp, giảm bão hòa dầu dư trong vỉa. Kết quả nghiên cứu đánh giá hiệu quả gia tăng thu hồi dầu trên mẫu vỉa thực tế của trầm tích Miocene cho kết quả gia tăng lên đến trên 21%. Hệ hóa phẩm VPI SP đã được Liên doanh Việt - Nga "Vietsovpetro" đưa vào kế hoạch triển khai thử nghiệm quy mô công nghiệp trên phạm vi mỏ Bạch Hổ và các mỏ dầu đang khai thác thuộc trầm tích bể Cửu Long.

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