塔河碳酸盐岩缝洞型油藏开发技术及攻关方向

doi:10.13809/j.cnki.cn32-1825/te.2020.02.001

Abstract

Abstract:

The fractured-vuggy carbonate reservoir is one of the main types of oil and gas reservoirs in Tarim Basin, which has great potential and broad prospect. In recent years, Sinopec Northwest Oilfield Company has continued the exploration and development for them, and has made many breakthroughs in the researches of basic geological theory of carbonate rock, seismic identification technology of fracture cavity body, and high-efficiency development engineering technology. And it has established a series of relatively perfect geological and reservoir engineering methods and technologies for carbonate reservoirs. It has realized the continuous increase of storage and production and efficient development of carbonate reservoir in Tahe oilfield, showing a good prospect of exploration and development, and also providing reference for the exploration and development of similar reservoirs at home and abroad. However, how to develop carbonate fracture-cavity reservoir sustainably also faces the problems and challenges such as theoretical innovation and technological breakthrough. It is urgent to tackle the key problems and make breakthroughs in fracture-cavity structure description, quantitative characterization of remaining oil, utilization of reserves around wells, and heavy oil recovery, so as to continuously promote high-efficiency and high-quality development of carbonate fracture-cavity reservoirs.

Key words: Tahe Oilfield, Ordovician, carbonate rock, fractured-vuggy reservoir, identification of fracture and vug, reservoir geological method, engineering technology

CLC Number:

TE344

HU Wenge. Development technology and research direction of fractured-vuggy carbonate reservoirs in Tahe Oilfield[J].Reservoir Evaluation and Development, 2020, 10(2): 1-10.

Figures/Tables 15

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序号	井号	改进容积法计算静态储量（N₁）/ 10⁴ t	体积雕刻法计算静态储量（N₂）/ 10⁴ t	动态储量（N₃）/ 10⁴ t
1	TK842	26.58	24.50	23.70
2	TK848	2.91	2.93	2.70
3	T811	68.90	55.20	53.40
4	TK839	10.45	10.60	10.00
5	TK846	15.30	13.60	12.40
6	TK674	11.20	9.80	9.00
7	TK675	49.40	35.80	33.80
8	TK405	8.20	7.10	6.50
9	T416	38.50	34.10	32.90
10	TK492	3.97	3.61	3.20
11	TK839	12.80	11.90	10.60
12	TK231	56.20	47.70	45.30

岩溶背景	油藏特点	井网构建	注入方式
风化壳	表层岩溶带、垂向渗滤岩溶带厚度大,断层控制地表河位置及规模	缝洞面积井网	大规模的周期气驱
古暗河	表层岩溶带、垂向渗滤、径流溶带发育,断层、古地貌控制地下河规模和走向	河道空间网状井网	气驱+水驱
断溶体	岩溶缝洞沿断裂走向分布,平面分段、纵向局部分隔	断裂带线状井网	气驱+水驱交替注入

Development technology and research direction of fractured-vuggy carbonate reservoirs in Tahe Oilfield

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