Reservoir types and gas well productivity models for Member 4 of Sinian Dengying Formation in Gaoshiti block, Sichuan Basin

被引：0

作者：

Gu Y. ^{[1
,2
]}

Zhou L. ^{[1
]}

Jiang Y. ^{[1
,2
]}

Ni J. ^{[3
]}

Li J. ^{[4
]}

Zhu X. ^{[5
]}

Fu Y. ^{[1
,2
]}

Jiang Z. ^{[6
]}

机构：

[1] School of Geoscience and Technology, Southwest Petroleum University, Chengdu, 610500, Sichuan

[2] Reservoir Evaluation Laboratory, CNPC Key Laboratory of Unconventional Oil & Gas, Chengdu, 610500, Sichuan

[3] Southern Sichuan Gas District, PetroChina Southwest Oil & Gasfield Company, Luzhou, 646000, Sichuan

[4] Central Sichuan Oil & Gas Field, PetroChina Southwest Oil & Gasfield Company, Suining, 629000, Sichuan

[5] Exploration and Development Research Institute, PetroChina Southwest Oil & Gasfield Company, Chengdu, 610041, Sichuan

[6] Sichuan Geotech Science and Technology Ltd. Co., Chengdu, 610041, Sichuan

来源：

Shiyou Xuebao/Acta Petrolei Sinica | 2020年 / 41卷 / 05期

关键词：

Dengying Formation; Gaoshiti block; Gas reservoir development; Gas well productivity model; Reservoir type; Sichuan Basin; Sinian;

D O I：

10.7623/syxb202005006

中图分类号：

学科分类号：

摘要：

The Member 4 of Sinian Dengying Formation gas reservoir in Gaoshiti block of Sichuan Basin is mainly controlled by the deposition of mound-shoal complex and epigenic karstification. Due to the cause of multi-factor superposition, there are some limitations in reservoir characterization of Member 4 of Dengying Formation according to the existing reservoir classification and evaluation criterion. Based on core observations, conventional and imaging log data analyses, CT core scanning and thin section identification, the karst reservoirs of Member 4 of Dengying Formation in Gaoshiti block can be divided into pore type, pore-vuggy type and fracture-vuggy type with matching reservoir spaces. Among them, the pore-vuggy and pore-vuggy reservoirs have the characteristics of good physical properties, easy exploitation and good pilot production, and are the high-quality reservoir type in Member 4 of Dengying Formation. In addition, on the basis of fine reservoir classification in single wells, application of conventional seismic reservoir prediction and ant tracking technology, as well as analyses of the dynamic data such as well test curves, production curves and open flow capacities of typical wells, the division scheme of gas well productivity can be established and the productivity models can be classified into three categories (Ⅰ, Ⅱ and Ⅲ) for Member 4 of Dengying Formation in Gaoshiti block. The high-quality reservoir has a high proportion in the productivity model Ⅰ and model Ⅱ, showing broad trough-shaped seismic reflection in the upper submember of Member 4 of Dengying Formation, well developed fracture-vuggy bodies in ant tracking attributes, and good effects during pilot production. © 2020, Editorial Office of ACTA PETROLEI SINICA. All right reserved.

引用

页码：574 / 583

页数：9

共 22 条

[1]

MA Xinhua, A golden era for natural gas development in the Sichuan Basin, Natural Gas Industry, 37, 2, pp. 1-10, (2017)

[2]

REN Hongjia, GUO Qiulin, ZHOU Gang, Et al., Analysis of gas resource potential of Sinian and Cambrian in the eastern Sichuan Basin, China Petroleum Exploration, 23, 4, pp. 21-29, (2018)

[3]

WANG Zecheng, ZHAO Wenzhi, HU Suyun, Et al., Control of tectonic differentiation on the formation of large oil and gas fields in craton basins: a case study of Sinian-Triassic of the Sichuan Basin, Natural Gas Industry, 37, 1, pp. 9-23, (2017)

[4]

WEI Guoqi, LI Jun, SHE Yuanqi, Et al., Distribution laws of large gas fields and further exploration orientation and targets in China, Natural Gas Industry, 38, 4, pp. 12-25, (2018)

[5]

JIN Mindong, TAN Xiucheng, TONG Mingsheng, Et al., Karst paleogeomorphology of the fourth Member of Sinian Dengying Formation in Gaoshiti-Moxi area, Sichuan Basin, SW China: restoration and geological significance, Petroleum Exploration and Development, 44, 1, pp. 58-68, (2017)

[6]

The description of exploitation geologic characteristics for carbonate gas reservoir: SY/T 6110-2002, (2002)

[7]

XIAO Fusen, CHEN Kang, RAN Qi, Et al., New understandings of the seismic modes of high productivity wells in the Sinian Dengying Fm gas reservoirs in the Gaoshiti area, Sichuan Basin, Natural Gas Industry, 38, 2, pp. 8-15, (2018)

[8]

YANG Wei, WEI Guoqi, ZHAO Rongrong, Et al., Characteristics and distribution of karst reservoirs in the Sinian Dengying Fm, Sichuan Basin, Natural Gas Industry, 34, 3, pp. 55-60, (2014)

[9]

ZHANG Lin, WAN Yujin, YANG Hongzhi, Et al., The type and combination pattern of karst vuggy reservoir in the fourth member of the Dengying Formation of Gaoshiti structure in Sichuan Basin, Natural Gas Geoscience, 28, 8, pp. 1191-1198, (2017)

[10]

DAI Xiaofeng, LIU Weidong, GAN Lideng, Et al., The application of Radon transform to suppress interbed multiples in Gaoshiti-Moxi region, Acta Petrolei Sinica, 39, 9, pp. 1028-1036, (2018)

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