白云石化作用

白云石化作用，以早成岩阶段混合水白云石化作用为主，埋藏白云石化作用次之。

The dolomitization is dominated by mixed water dolomitization in the early diagenetic stage , followed by burial dolomitization .

对储集空间贡献最大的是白云石化作用，其次是淡水淋滤溶蚀作用和构造破裂成缝作用。

The dolomitization , fresh water leaching process , dissolution and fracture-formed process came to the main reservoir space .

塔北东段下奥陶统白云石化作用

Dolomitization of Lower Ordovician in eastern sector of North Tarim Region

近年来，关于白云石化作用及白云岩问题，取得了更深层次的发展。

Nowadays , the progress of research about dolomitization and the issue of dolostone has been acquired .

区内碳酸盐岩成岩作用复杂，类型多样。以溶蚀作用、白云石化作用、破裂作用为主。

The diagenesis of the work area , which mainly includes karst , dolomization and fracturing is of great complexity and of many types .

其中，对储层孔隙起建设性的成岩作用为白云石化作用、表生岩溶作用、埋藏溶解作用；对储层孔隙起破坏性的成岩作用为去白云石化作用、各种矿物充填作用等。

Among them , dolomitization , supergene karstification and burial dissolution play a constructive diagenesis for reservoir porosity , the destructive diagenesis for reservoir porosity is dedolomitization , mineral packing action .

埋藏白云石化及晚期溶蚀作用对形成有利储集空间具有最重要的贡献。

Burial dolomitization and dissolution is the most important contribution on the formation of favorable reservoir space .