Prediction of thin sandstone reservoirs of Wutonggou Formation in the DX178 well area of Xinjiang by using liquid mobility factor method

Expand
  • 1.PetroChina Research Institute of Petroleum Exploration & Development,Langfang 065007,China;
    2.Gas Recovery Plant No.1,PetroChina Xinjiang Oilfield Company,Karamay 834000,China;
    3.Oil Recovery Plant No.4,PetroChinaHuabei Oilfield Company,Langfang 065007,China

Received date: 2018-05-25

  Revised date: 2018-07-18

  Online published: 2019-08-28

Abstract

The Wutonggou Formation in the DX178 well area develops two sets of upper and lower gas layers with natural gas geological reserves of 31.49×108m,which is a favorable area for the next step to development and production.However,the reservoir in the Wutonggou Formation is thin,and the frequency of existing seismic data is relatively low.The investment cost for exploration and development is high and the risk is large.Therefore,it is necessary to improve the sand drilling rate of horizontal well and study on the identification method of thin sand.The sandstone reservoirs with large thickness can be merely identified by conventional post-stack seismic inversion method.Owing to the limitation of seismic resolution for the thin sand,the prediction results cannot meet the needs of exploration and development.In this paper,the liquid mobility factor calculated by the high-precision seismic time-frequency analysis method can effectively characterize the sandstone reservoir and non-reservoir layers.According to the logging data,the fluid activity factor of the sandstone reservoir was calibrated by the liquid mobility factor,and the distribution area of sandstone can also be predicted.This method was used to predict the thin sandstone reservoirs of the Wutonggou Formation in DX178 wells area.The prediction results are in good agreement with the actual drilling results.During the implementation process of the four horizontal well drilling,the well trajectory was timely adjusted according to the prediction results,which effectively improved the sand drilling rate of horizontal well,and achieved good development results.

Cite this article

Guo Xiao-long, Li Xuan, Li Bo, Yang Ya-di, Jiang Shu-li, Xu Jing . Prediction of thin sandstone reservoirs of Wutonggou Formation in the DX178 well area of Xinjiang by using liquid mobility factor method[J]. Natural Gas Geoscience, 2018 , 29(8) : 1172 -1180 . DOI: 10.11764/j.issn.1672-1926.2018.07.001

References

[1]PetroChina Xinjiang Oilfield Company.Research on the development plan of Kelamei Gas Field (geological and gas eeservoirengineering)[R].Karamay:PetroChina Xinjiang Oilfield Company,2016.
中国石油新疆油田分公司,克拉美丽气田开发方案研究(地质与气藏工程)[R].克拉玛依:中国石油新疆油田分公司,2016.
[2]Cai Zhongxian,Chen Fajing,Jia Zhenyuan.Types and tectonic evolution of the Junggar Basin[J].Geoscience Frontiers,2000,7(4):431-440.
蔡忠贤,陈发景,贾振远.准噶尔盆地的类型和构造演化[J].地学前缘,2000,7(4):431-440.
[3]Chen Jianping,Wang Xulong,Deng Chunping,et al.Oil and gas sources,oil and gas distribution and petroleum systems in the Junggar Basin[J].Journal of Geology,2016,90(3):421-450.
陈建平,王绪龙,邓春萍,等.准噶尔盆地油气源、油气分布与油气系统[J].地质学报,2016,90(3):421-450.
[4]Qiu Peng,Li Daoqing,Li Yifeng.Anatomy and identification technology of volcanic bodies in volcanic gas reservoirs in Dianxi 17 well area[J].Natural Gas Exploration and Development,2013,36(3):13-16,22.
仇鹏,李道清,李一峰.滴西17井区火山岩气藏火山机构解剖及识别技术[J].天然气勘探与开发,2013,36(3):13-16,22.
[5]Li Daoqing,Wang Bin,Qiu Peng,et al.Identification of volcanic gas reservoirs by frequency-inversion property inversion and model forward modeling[J].Journal of Oil and Gas,2014,36(2):66-69.
李道清,王彬,仇鹏,等.分频属性反演与模型正演技术识别火山岩气藏夹层[J].石油天然气学报,2014,36(2):66-69.
[6]Shi Xinpu,Zhang Dongping,Liao Wei.Lithofacies structure of Carboniferous volcanic gas reservoirs in the Dannan Uplift inJunggar Basin[J].Xinjiang Petroleum Geology,2013,34(4):390-393.
石新朴,张东平,廖伟.准噶尔盆地滴南凸起石炭系火山岩气藏岩相结构[J].新疆石油地质,2013,34(4):390-393.
[7]Goloshubin G M,Korneev V A,Vingalov V M.Seismic low-frequency effects from oil-saturated reservoir zone[C]//Expanded Abstracts of  72ndSEG Ann.Internar.Mtg.2002:1813-1816.
[8]Goloshubin G,Van Schuyver C,Korneev V,et al.Reservoir imaging using low frequencies of seismic reflections[J].Leading Edge,2006,25(5):527-531.
[9]Guo Xiaolong,Ouyang Yonglin,Zhang Xiuping,et al.Application of wavelet transform parameter for gas prediction in Sulige Gas field[J].Natural Gas Geoscience,2007,18(3):418-421.
郭晓龙,欧阳永林,张秀平,等.小波参数变化参数在苏里格气田的实际应用[J].天然气地球科学,2007,18(3):418-421.
[10]Li Tingting,Wang Zhao,Ma Shizhong,et al.Summary of seismic attributes fusion method[J].Progress in Geophysics,2015,30(1):378-385.
李婷婷,王钊,马世忠,等.地震属性融合方法综述[J].地球物理学进展,2015,30(1):378-385.

Outlines

/