离散裂缝网络建模技术在大庆油区泥岩裂缝性油气藏的应用浅析

油气藏评价与开发 ›› 2018, Vol. 8 ›› Issue (4): 11-16.

离散裂缝网络建模技术在大庆油区泥岩裂缝性油气藏的应用浅析

魏旭¹,张永平²,薄云鹤¹,郭昊¹,郭宇航¹,吴森昊²

^1. 东北石油大学石油工程学院, 黑龙江大庆 163318
^2. 中国石油大庆油田有限责任公司采油工程研究院,黑龙江大庆 163454

收稿日期:2017-09-11 出版日期:2018-08-26 发布日期:2018-11-12
作者简介:魏旭（1992—）,男,在读博士研究生,油气藏增产理论与技术。
基金资助:
国家科技重大专项“大型油气田及煤层气开发”(2016ZX05046-006);东北石油大学研究生创新科研项目“徐深火山岩气田扩大改造体积数值模拟研究”(YJSJD2017-002NEPU)

Application of discrete fracture network modeling technology in mudstone fractured reservoir in Daqing oil region

Wei Xu¹,Zhang Yongping²,Bo Yunhe¹,Guo Hao¹,Guo Yuhang¹,Wu Senhao²

1.College of Petroleum Engineering, Northeast Petroleum University, Daqing, Heilongjiang 163318, China
^2. Research Institute of Oil Production Engineering, Daqing Oilfield Co., Ltd., PetroChina, Daqing, Heilongjiang 163454, China

Received:2017-09-11 Online:2018-08-26 Published:2018-11-12

摘要/Abstract

摘要：

泥岩裂缝性油气藏是一种特殊的非常规油气藏,其油气储集空间主要以裂缝为主。较多的储量使该类油气藏具有很高的工业开采价值,但由于地质情况复杂,其开发效果并不理想。为了在压裂施工前,还原地质构造并准确分析泥岩裂缝性油气藏的产能情况,充分考虑了岩心特性、井下微地震以及生产动态等资料。根据大庆地区泥岩裂缝发育层段和产状特征,结合地震等构造研究结果,以裂缝强度属性作为模型约束条件构建裂缝网络模型,并在网络模型的基础上建立人工裂缝与天然裂缝的耦合模型,从而进行压前压后产能效果分析。研究结果表明,该裂缝模型能较好地描述实际地层中天然裂缝的数量、走向等情况,并且能准确地预估压前压后的油气产量。该研究可作为大庆A地区泥岩裂缝性油气藏压前压后产能评价方法,为该区块其它井的压裂施工提供依据。

关键词: 泥岩裂缝性油气藏, 裂缝强度属性, 天然裂缝, 耦合模型, 产能评价

Abstract:

：The mudstone fractured oil and gas reservoir is a kind of special unconventional reservoirs and its hydrocarbon mainly exists in fractures. This kind of reservoirs has industrial exploitation value due to the large reserves, but the complex geological condition leads to its poor develop effects. In order to reconstruct the geological condition and analyze the production capacity of the mudstone fractured oil and gas reservoir before fracturing, the core characteristics, downhole microseismic and dynamic information of production are fully considered. According to the characteristics and production of the development layer with mudstone fractures in Daqing area, and combined with the seismic and other structural research results, we established the fracture network model, which was constrained by the crack strength attribute. Based on the network model, the coupling model of the artificial fracture and natural fracture is established, so that to analyze the effect before and after fracturing. The results show that the fractured model can accurately describe the numbers and direction of the natural fractures, and estimate the oil and gas production before and after fracturing. The study is used as a method for evaluating the productivity of mudstone fractured oil and gas reservoirs in area A of Daqing, and to provide the basis for the fracturing construction of other wells in this zone.

Key words: Key works: mudstone fractured oil and gas reservoir, crack strength attribute, natural fracture, coupling model, productivity evaluation

中图分类号:

TE357.1

魏旭,张永平,薄云鹤,郭昊,郭宇航,吴森昊. 离散裂缝网络建模技术在大庆油区泥岩裂缝性油气藏的应用浅析[J]. 油气藏评价与开发, 2018, 8(4): 11-16.

Wei Xu,Zhang Yongping,Bo Yunhe,Guo Hao,Guo Yuhang,Wu Senhao. Application of discrete fracture network modeling technology in mudstone fractured reservoir in Daqing oil region[J]. Reservoir Evaluation and Development, 2018, 8(4): 11-16.

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参考文献 23

[1]	白玉彬, 赵靖舟, 陈孝平 , 等. 蟠龙油田长2储层裂缝分布及油气地质意义[J]. 断块油气田, 2012,19(1):61-64.
[2]	董光, 邓金根, 米海燕 , 等. 重复压裂前的地应力场分析[J]. 断块油气田, 2012,19(4):485-488,492. doi: 10.6056/dkyqt201204019
[3]	宋梅远 . 渤南洼陷泥岩裂缝油气藏储层发育及成藏规律研究[D]. 中国石油大学, 2011.
[4]	王秀玲, 季玉新, 刘玉珍 , 等. 应用地震吸收分析技术预测裂缝性储层[J]. 油气地球物理, 2003,( 02):44-46.
[5]	刘成斋 . 泥岩裂缝油藏地球物理特征与检测方法[D]. 成都理工大学, 2004.
[6]	朱贺 . 泥岩裂缝性储层闭合压力及应力敏感性研究[D]. 东北石油大学, 2012.
[7]	霍凤龙 . 古龙地区泥岩裂缝油藏成藏条件及地球物理特征研究[D]. 浙江大学, 2012.
[8]	叶成林 . 苏53区块天然裂缝特征及对水压致裂的影响[J]. 天然气技术与经济, 2016, 10(1):8-11+81.
[9]	S L Montgomery, D M Jarvie, K A Bowker , et al. Mississippian Barnett Shale, Fort Worth Basin north-central Texas Gas-shale play with multi- trillion cubic foot potential[J]. AAPG Bulletin, 2006 , 90(6) : 963-966. doi: 10.1306/02090605132
[10]	K A Bowker . Barnett shale gas production, Fort Worth Basin Issues and discussion[J]. AAPG Bulletin, 2007,91(4):523-533. doi: 10.1306/06190606018
[11]	D G Hill, T E Lombardi, J P Martin. Fractured gas shale potential in New York [C]. Colorado Arvada, 2002.
[12]	Nelson R. A. Geologic analysis of naturally fractured reservoirs contributions in petroleum geology and engineering[C]. Houston Gulf Publishing Company, 1985: 320.
[13]	陈章明, 张树林, 万龙贵 . 古龙凹陷北部青山口组泥岩构造裂缝的形成及其油藏分布的预测[J]. 石油学报, 1988,9(4):7-15.
[14]	陈佳良 . 裂缝性储层的预测及应用[J]. 勘探地球物理进展, 2004,27(1):35-40.
[15]	D G Hill, C R Nelson . Reservoir properties of the Upper Cretaceous Lew is shale a new natural gas play in the San Juan Basin. AAPG Bulletin, 2000,84(8):1240.
[16]	Curtis J. B . Fractured shale-gas systems[J]. AAPG Bulletin, 2002,86(11):1921-1938.
[17]	D Warlick . Gas shale and CBM development in North America[J]. Oil and Gas Financial Journal, 2006,3(11):1-5.
[18]	陈宝玲 . 泥岩裂缝油藏勘探试验研究[ C].大庆油田勘探开发研究院, 1992.
[19]	吴河勇 . 松辽盆地古龙南地区泥岩裂缝及其含油特征的初步研究[ C].大庆油田勘探开发研究院, 1985.
[20]	胡望水, 雷志诚, 许辰 , 等. 白音查干凹陷锡林好来油田白云质泥岩储层研究[J]. 特种油气藏, 2013,20(1):11-14. doi: 10.3969/j.issn.1006-6535.2013.01.003
[21]	丁文龙, 许长春, 久凯 , 等. 泥页岩裂缝研究进展[J]. 地球科学进展, 2011,26(2):135-142.
[22]	张奎华 . 密度投影技术在页岩裂缝储层预测中的应用—以渤南洼陷罗家地区沙三段下亚段为例[J]. 油气地质与采收率, 2013,20(3):46-48.
[23]	苗青, 周存俭, 罗日升 , 等 . 碳酸盐岩裂缝型油藏裂缝预测及建模技术[J]. 特种油气藏, 2014, 21(02):37-40+152.

井号	岩心描述裂缝总条数	裂缝模型与岩心描述吻合条数	裂缝模型与岩心描述不吻合条数	吻合率, %
HA14	52	44	8	85
HA16	112	103	9	92
HA18	31	25	6	81
YING12	28	23	5	82
YING15	140	123	17	88
YING 16	129	116	13	90
YING 18	44	38	6	86
GUPING1	54	51	3	94
平均				87.25
合计	590	523	67