Khảo sát thí nghiệm bơm ép khí nước luân phiên trong mẫu cát kết Miocen mỏ Rồng Đen, bể Cửu Long

0 Người đánh giá. Xếp hạng trung bình 0

Tác giả: Minh Hoàng Cù, Gia Thông Nguyễn, Xuân Huy Nguyễn, Hữu Tài Phạm, Viết Nam Tô, Thị Mai Hương Trần

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Tạp chí Khí tượng Thủy văn, 2022

Mô tả vật lý: tr.55-64

Bộ sưu tập: Metadata

ID: 334731

Thêm vào giỏ Liên kết toàn văn

In the process of oil field exploitation, the amount of residual oil after primary and secondary production is very large, especially in Rong Den field in Cuu Long basin. A significant portion of these residual oil can be recovered economically by water alternating gas injection (WAG). The WAG injection method has been studied in the experimental investigation laboratory with a minimum miscible pressure of about 2950 psi. The core sample injection test by WAG method shown very remarkable results, the oil recovery coefficient of the WAG injection before waterflood was 88.6%. The oil recovery by waterfooding reached only 68.6%, then using WAG injection, oil production recovered about 17.9%. The results that the oil recovery coefficient of WAG before waterflood injection is 2.1% larger than after water injection. Thus, the application of WAG injection before water injection is the best case.Thông thường lượng dầu sót lại trong mỏ sau giai đoạn bơm ép nước là rất lớn, nhất là hoạt động khai thác ở mỏ Rồng Đen, bể Cửu Long. Một phần đáng kể lượng dầu sót này có thể được thu hồi, đạt hiệu quả kinh tế bằng cách sử dụng bơm ép khí CO2 và nước luân phiên (WAG). Sử dụng bơm ép WAG trong phòng thí nghiệm cho thấy áp suất trộn lẫn tối thiểu của khí CO2 ở khoảng 2950 psi. Thí nghiệm bơm ép mẫu lõi bằng phương pháp WAG cho kết quả rất đáng chú ý, hệ số thu hồi của thí nghiệm WAG trước khi bơm ép nước thứ cấp là 88,6%. Lượng thu hồi của bơm ép nước thứ cấp đạt 68,6%, bơm ép WAG sau bơm ép nước, thu hồi thêm 17,9%. Kết quả cho thấy hệ số thu hồi dầu của WAG trước khi bơm ép nước lớn hơn tổng hệ số thu hồi của bơm ép nước và bơm ép WAG sau khi bơm ép nước là 2,1%, cho thấy việc áp dụng WAG trước khi bơm ép nước đạt hiệu quả hơn sau khi bơm ép nước thứ cấp và WAG tam cấp.

1. Đọc trực tuyến

1. Đọc trực tuyến

Tạo bộ sưu tập với mã QR