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- Title
珠江口盆地H油田珠江组L30层深水重力流 复合砂体的发现及其对开发的意义.
- Authors
高玉飞; 范廷恩; 戴宗; 吴星宝; 王海峰; 张晶玉; 宋建虎; 张天佑; 范虎; 李晨
- Abstract
To study the gravity deposits of L30 layer in lower part of Zhujiang formation of Zhujiangkou basin, based on the guidance of sequence stratigraphy theory, the sedimentary Palaeogeomorphology of L30 layer in H oilfield was firstly analyzed by using Palaeogeomorphological analysis technology, and two sedimentary centers were determined in northwest and southeast respectively. The southeast sedimentary center was higher than the northwest sedimentary center. Then, by summarizing five typical characteristics of core, it was judged that gravity flow deposits are developed in the southeast sedimentary center which the H-4 well located. And a composite sandbody depositional model which early collapse deformation-medium term grain flow deposits, late deep water mudstone deposits was summarized. The discovery of this model provides an important reference for exploration and development of lithologic reservoirs in this area. Finally, gravity was determined by seismic waveform indication inversion and composite sandbody characterization technology. The depositional range of flow composite sandbody wascalculated and its reserve is 1. 8X 106 m3、The development plan of 4 horizontal wells with 1 injection well and 3 production wells before describing of composite sandbody is adjusted to 2 horizontal wells with 1 injections well and 1 production well, which avoides risk investment and improves economic efficiency.
- Subjects
INJECTION wells; HORIZONTAL wells; SEQUENCE stratigraphy; ECONOMIC efficiency; INVESTMENT risk
- Publication
China Sciencepaper, 2021, Vol 16, Issue 5, p487
- ISSN
2095-2783
- Publication type
Article