Ứng dụng thoát nước trọng lực hỗ trợ khí (GAGD) nâng cao khả năng thu hồi dầu tầng hầm Rạng Đông

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Tác giả: Minh Dũng Hà, Kiên Trung Nguyễn

Ngôn ngữ: Vie

Ký hiệu phân loại: 622 Mining and related operations

Thông tin xuất bản: Dầu khí 2022

Mô tả vật lý: 35 - 45

Bộ sưu tập: Metadata

ID: 406682

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Là một phương án để cải thiện hệ số thu hồi dầu cuối cùng của mỏ Rạng Đông, nghiên cứu khả thi thoát nước trọng lực hỗ trợ khí Ứng dụng (GAGD) đã được thực hiện cho bể chứa tầng hầm bị rạn nứt với thử nghiệm thí điểm Huff 'n' Puff một giếng được áp dụng trên nhà sản xuất cắt giảm lượng nước cao. Bài báo này nhằm mục đích cung cấp một sự hiểu biết sâu sắc về nghiên cứu trường hợp như vậy, bao gồm các chi tiết về lựa chọn ứng cử viên, phương án bơm khí, thực hiện tại chỗ, kết quả hồi lưu, tổng kết sau công việc và rút kinh nghiệm. Thử nghiệm thí điểm GAGD được ghi nhận với tỷ lệ dầu tốt và cắt nước thấp trong quá trình hồi lưu sau khi bơm khí và ngắt khí sự phân biệt, điều này cho thấy hiệu quả tích cực của GAGD ở một mức độ nào đó. Việc mở rộng ứng dụng GAGD sang các giếng khác và các khu vực trong lĩnh vực này sẽ được khuyến khích trong bất kỳ tình huống tương tự. Mặt khác, kết quả của thử nghiệm thí điểm này làm sáng tỏ thêm tối ưu hóa việc lựa chọn ứng cử viên và sơ đồ bơm khí bằng phân tích cân bằng vật chất và mô phỏng hồ chứa tương ứng., Tóm tắt tiếng anh, As an option to improve the ultimate oil recovery factor of the Rang Dong field, a feasibility study of gas-assisted gravity drainage (GAGD) application was carried out for the fractured basement reservoir with a single-well Huff 'n' Puff pilot test applied on a high water-cut producer. This paper aims to provide an in-depth understanding about such case study, which includes details on candidate selection, gas injection scheme, on-site execution, results of flow-back, post-job review and lessons learned. The pilot test of GAGD was recorded with a good oil rate and low water-cut during flowing back after gas injection and shut-in for gas segregation, which suggests the positive effectiveness of GAGD to some degree. The expansion of the GAGD application to other wells and areas in the field would be encouraged in any similar situation. On the other hand, the results of this pilot test shed a light into further optimisation of the candidate selection and gas injection scheme by material balance analysis and reservoir simulation respectively.

1. Đọc trực tuyến

1. Đọc trực tuyến

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