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疏松砂岩油藏遍布于世界的各个油区。Unconsolidated sandstone reservoirs are all over international various oil region.

天池口滑坡是清江隔河岩库区一大型松散堆积物滑坡。Tianchikou landslide is a large unconsolidated deposit landslide in Geheyan reservoir area on Qing River.

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油气井的出砂已经成为困扰疏松油藏生产的一个严重问题。Sand production in oil and gas wells has become a serious problem for unconsolidated reservoir production.

因此研究的兴趣主要集中在对松散材料孔隙度的研究。Therefore, much of the interest was centered on the investigation of porosity of unconsolidated materials.

为研究疏松砂岩油藏出砂机理，对地层出砂进行了室内试验研究。The experiments were used to study the sanding production mechanism in Unconsolidated Sandstone Reservoirs.

微粒运移伤害是疏松产层一种比较普遍又相当严重的地层伤害。The particle migration damage is a kind of general and serious damage of unconsolidated producing formation.

目的研究薄层疏松砂岩稠油油藏的有效开发技术。Aim To study the effective development techniques for thin unconsolidated sandstones reservoir with viscous oil.

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由于地层疏松，该井井斜角较大等造成取心难度大。Formations were unconsolidated and hole deviation angle was high, so it was difficult to recover cores from this well.

最常见的空间就是在松散的小颗粒，例如沙粒和小圆石，沙子以及沙砾之间。The commonest spaces are those among the particles—sand grains and tiny pebbles—of loose, unconsolidated sand and gravel.

粉细砂岩油藏防砂工艺技术对于提高疏松砂岩粉细砂油藏产能及现场应用有重要的指导意义。This technology is significant to improve oil production from unconsolidated silty sand stone reservoir and to the field applications.

在此基础上，评价了垭口处下游岸坡第四系松散层的渗透稳定问题。And then the problem of seepage stability of Quaternary unconsolidated formation of downstream bank slope of saddle back was appraised.

在系统分析的基础上，提出了水驱疏松砂岩气藏新的开发优化模式。Based on system analysis, a novel development optimization model is presented for water-driven unconsolidated sandstone gas reservoirs.

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非固结砂岩的地震响应研究表明泊松比参数与低有效应力的砂岩模型参数有关。Seismic responses of unconsolidated sands indicate that Poisson's ratio is related to the parameters of sand with low effective stress.

对于出砂严重的疏松砂岩油藏，非均匀载荷也是引起套管损坏的一个重要因素。Non-uniform loading is one of the important causes leading to casing damage in unconsolidated sandstone reservoir with severely sanding production.

粉细砂岩油井由于埋藏浅、地层压实程度低、胶结疏松，在较大生产压差下容易出砂。The fine siltstone reservoir is likely to produce sand under larger pressure drops because of its shallow depth, worse compaction and unconsolidated.

近年来，发现并投入开发了很多砂岩气藏，其探明储量和已动用储量都是很可观的。Recent years, we have found and developed many unconsolidated sand gas reservoirs. The proved reserves and the produced reserves are very considerable.

柴达木盆地东部的涩北气田储层岩石成岩性差，疏松易散，生产中存在出砂的问题，影响了气田的正常生产。Sebei gas field located in the east of Qaidam Basin has unconsolidated reservoir rock, sand production is a serious problem and affects well production.

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然而疏松砂岩脱砂压裂机理复杂，目前对其内在规律认识还不够深入。However, the screen out fracturing mechanism in unconsolidated sandstone reservoir is complicated, and to date, less is known about its intrinsic regularity.

但是，储层目前面临着松散的输沙性能和管理上的困难，这不但影响到井的设计，而且局限了井筒的分离。However, the unconsolidated nature of the reservoir presents sand transport and management difficulties that effect well design and limit wellbore departure.

首先讨论了现有各类模型存在的不足，并在这些模型的基础上，提出了新的疏松砂岩弹性波速分析模型。The faultiness of existing models was discussed. A new model for elastic wave velocity of unconsolidated sandstone was developed on the basis of these models.