pressure solution meaning in English
压力溶解作用
压溶作用
Examples
- The cementation of laumonite , calcite and chlorite , compact and pressure solution , as well as the dissolution of laumontite , feldspar are also of main factors which affect reservoir properties
方解石、绿泥石、浊沸石的胶结作用、压实压溶作用和浊沸石、长石的溶解作用也是影响储集性能的主要因素。 - Algae - rich carbonate of cambrian is typical sediment of foreslope facies in sandu and danzhai , eastern guizhou province . after sediment , it experiences many changes of diagenetic environment , and takes place much diagenetic altercation , among which the biggest is salt water dolomilization , and then is compaction , recrystallization , pressure solution , organic dissolution , burial dolomilization , cementation and silicification
贵州省东部三都丹寨地区中上寒武统富藻碳酸盐岩是典型的斜坡沉积,其在沉积后漫长的地质历史时期内，经受了诸多成岩环境的改造，发生了极大的成岩变化，最大的成岩变化为咸水云化，其他的成岩作用有压实作用重结晶作用压溶作用有机溶解作用埋藏云化作用胶结作用及硅化作用等。 - The variations in trace element contents and ratios may hold up a mirror to the lake - level fluctuations and climatic changes , which , in turn , have exerted a direct and important effect on the sequence stratigraphic development . collectively , the reservoir rocks from the yanchang formation consist dominantly of the delta front subfacies subaqueous distributary channel and channel - mouth bar microfacies and delta plain subfacies subaerial distributary channel microfacies fine - grained feldspar sandstones and siltstones . the reservoir rocks have been subjected to three stages of diagenetic and porosity evolution : ( 1 ) the porosity reduction by the mechanical compaction and chemical pressure solution during the early diagenetic stage ; ( 2 ) the porosity increase by the dissolution during the a substage of the late diagenetic stage , and ( 3 ) the porosity reduction by the cementation and filling during the b substage of the late diagenetic stage
系统的储层特征研究表明，该区延长组储层成因类型主要为三角洲前缘水下分流河道、河口砂坝及三角洲平原水上分流河道微相细粒长石砂岩、粉砂岩；储层岩石经历了压实，胶结，溶蚀等成岩作用，历经早成岩机械压实和化学压溶孔隙缩小期、晚成岩a亚期溶蚀作用孔隙扩大期及晚成岩a亚期( b亚期)胶结充填孔隙缩小期三个成岩-孔隙演化阶段；储层物性总体上具有较低孔渗、低孔渗的特点，孔隙类型主要为粒间溶孔、残余粒间孔隙、粒内溶孔、晶间孔及晶间溶孔，裂缝不发育，储集岩排驱压力和中值压力较高，孔隙结构类型以细小孔-微孔隙，微细喉-微喉型为主。 - The pattern of diagenetic and porosity evolution are established . the primary porosity of the reservoir rocks was 35 % , which was reduced by 21 . 7 % by compaction and pressure solution and 8 . 2 % by cementation . the secondary pores were produced by organic acids " dissolution during organic matter maturing stage , resulting an increase of porosity by 5 %
预测本区砂岩原始孔隙度为35 ，经机械压实和化学压溶作用孔隙度损失了21 . 7 ，后经自生矿物的胶结作用，孔隙度损失了8 . 2 ，当进入有机质成熟阶段，有机酸的溶解作用产生次生孔隙，使孔隙度增加5 ，现今保存的平均孔隙度为10 . 1 。 - The rock types comprise the delta front subfacies subaqueous distributary channel , channel - mouth bar and distal bar microfacies , and delta plain subfacies subaerial distributary channel microfacies sandstones and siltstones . as for the reservoir quality , the subaqueous ( subaerial ) distributary microfacies channel sandstones are the first , the channel - mouth bar microfacies sandstones come second , the distal bar microfacies sandstones is the third , and the last one is the interdistributary bay microfacies sandstones . the intense compaction , pressure solution and late carbonate cementation are responsible for the reduction of the porosity and permeability of the reservoir rocks
三角洲前缘水下分流河道、河口砂坝、远砂坝及三角洲平原水上分流河道微相决定了储集岩的发育，分布及原始物性条件；水下(上)分流河道微相砂体厚度大、物性和孔隙结构好，次之为河口砂坝微相砂体，远砂坝微相砂体储集性较差，而分流伺湾微相砂体物性和孔隙结构最差。