粘土包壳作为石英晚期胶结作用的抑制剂可能是特别重要的。
Clay coats can be particularly important as inhibitors of later quartz cementation.
疏松砂岩气藏由于埋藏较浅、岩石胶结性差,并且粘土和杂基含量高,使得这类气藏在开采过程中容易出砂。
Unconsolidated sand reservoir always be buried not deep, because of it's low cementation and high content of clay and sundry, the unconsolidated rock is easy to sanding during exploitation.
胶结作用表现为石英和长石的次生加大、自生粘土矿物、碳酸盐和硬石膏胶结物的依次形成并充填孔隙。
Cementation is showed by the secondary enlargement of quartz and feldspar, the successive formation and pores filling of cementing material of authigenic clay mineral, calcite and anhydrite, etc.
疏松砂岩稠油油藏孔隙度大,胶结疏松,粘土矿物含量偏高。
Heavy oil reservoir of loose sand is of large porosity, loose cementation and higher clay content.
岩石类型为成分成熟度较低的岩屑长石砂岩和长石砂岩,并合较多的粘土矿物和硬石膏、方解石、白云石胶结物。
The rocks are lithic arkose and arkose which are in low composition saturation and has high clay content, anhydrite, calcite and dolomite cements.
天然沉积粘土都具有一定的结构性(组构和胶结)和结构强度。
The clays from natural sedimentation have always the structure (fabric and bond) and structure strength.
由于软岩为强度低、孔隙度大、胶结程度差、含有大量膨胀性粘土矿物的松散、软弱岩层。
Because soft rocks have low strength and high porosity and contain large amount of expansive clay minerals, the freezing-thawing process of soft rock is complicated.
而在以粘土为主要胶结物的地层中,当开始产水后,水溶解地层中的胶结物,降低了地层固结强度。
In the stratum taking clay as main cement, water dissolves the cement in the stratum after beginning to produce water, and which reduced the consolidation intensity of stratum.
储层颗粒以线、点-线接触为主,胶结类型主要为孔隙、孔隙-接触胶结,胶结物主要为粘土矿物;
The reservoir pellets take line, spot - line contact primarily, The cemented type is mainly hole, hole - contact cemented, The agglutinations are mainly clay minerals;
储层颗粒以线、点-线接触为主,胶结类型主要为孔隙、孔隙-接触胶结,胶结物主要为粘土矿物;
The reservoir pellets take line, spot - line contact primarily, The cemented type is mainly hole, hole - contact cemented, The agglutinations are mainly clay minerals;
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