Application of Geological Engineering Integration in Tight Sandy Conglomerate Horizontal Well

IF 0.6 4区 工程技术 Q4 ENERGY & FUELS Chemistry and Technology of Fuels and Oils Pub Date : 2024-07-23 DOI:10.1007/s10553-024-01736-4
Bingyang Wang, Yuchen Luo, Gang Tang
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Abstract

In order to improve the recovery rate of tight glutenite horizontal wells in the Baikouquan Formation in Mahu Sag, geological models were constructed through three aspects: structural modeling, lithofacies modeling, and attribute modeling; through rock mechanics parameters, in-situ stress direction, and vertical direction. Stress, pore fluid pressure, maximum horizontal principal stress, minimum horizontal principal stress to construct a one-dimensional in-situ stress model, combined with imaging logging wellbore wall caving and induced fractures to determine the in-situ stress direction to simulate the three-dimensional stress direction in the study area, using finite element method to simulate and The objective function fits and inverses the distribution of the three-dimensional in-situ stress field. Finally, comprehensive reservoir parameter characteristics and engineering parameter characteristics are used to predict the “sweet spot” of the study area. The results show that there are three types of sweet spots in the glutenite in the Mahu Depression: Type I sweet spots are good reservoirs with good oil content, high oil well production, and good reservoir engineering compressibility; Type II sweet spots are followed by oiliness and oil well production; Type III The sweet reservoirs have just reached the lower limit of the oil layer standard, mainly poor oil layers. The research results provide a reference for the development of Baikouquan tight glutenite in Mahu Sag.

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地质工程集成在致密砂砾岩水平井中的应用
为了提高马湖相白口泉地层致密韧岩水平井的采收率,从构造建模、岩性建模、属性建模三个方面,通过岩石力学参数、原位应力方向、垂直方向构建地质模型。应力、孔隙流体压力、最大水平主应力、最小水平主应力构建一维原位应力模型,结合成像测井井筒壁塌陷和诱发裂缝确定原位应力方向,模拟研究区三维应力方向,采用有限元法模拟和 目标函数拟合和反演三维原位应力场分布。最后,利用综合储层参数特征和工程参数特征预测研究区的 "甜点"。结果表明,马湖凹陷的谷朊岩存在三种类型的甜点:Ⅰ型甜点为含油好、油井产量高、储层工程压缩性好的好储层;Ⅱ型甜点为油性次之、油井产量次之;Ⅲ型甜点储层刚达到油层标准下限,以差油层为主。研究成果为马湖沙格白口泉致密糯性岩的开发提供了参考。
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来源期刊
Chemistry and Technology of Fuels and Oils
Chemistry and Technology of Fuels and Oils 工程技术-工程:化工
CiteScore
0.90
自引率
16.70%
发文量
119
审稿时长
1.0 months
期刊介绍: Chemistry and Technology of Fuels and Oils publishes reports on improvements in the processing of petroleum and natural gas and cracking and refining techniques for the production of high-quality fuels, oils, greases, specialty fluids, additives and synthetics. The journal includes timely articles on the demulsification, desalting, and desulfurizing of crude oil; new flow plans for refineries; platforming, isomerization, catalytic reforming, and alkylation processes for obtaining aromatic hydrocarbons and high-octane gasoline; methods of producing ethylene, acetylene, benzene, acids, alcohols, esters, and other compounds from petroleum, as well as hydrogen from natural gas and liquid products.
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