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苏里格53区块(以下简称苏53区块)隶属于苏里格区块,区域构造是鄂尔多斯盆地伊陕斜坡北部中带。主要目的层为石盒子8号层,气层垂深3200-3400m。储层沉积类型为辫状河和曲流河,储集砂体非均质性强,连续性较差,属溶孔、晶问孔隙型储层,裂缝不发育,储层物性差。气藏类型为无边底水弹性气驱、低孔、特低渗的岩性气藏。[1]为了提高苏里格气田整体开发效率,目前在苏53区块部署6口水平井,目前已经全部完钻,开始大规模应用阶段。
The Sulige 53 block (hereinafter referred to as the Su 53 block) belongs to the Sulige block and the regional structure is the middle belt of the northern part of the Iraqi-Shaanxi slope in Ordos Basin. The main purpose of the stone box box No. 8 layer, the depth of the gas layer 3200-3400m. The reservoir sedimentary types are braided rivers and meandering rivers. The reservoir sand bodies have strong heterogeneity and poor continuity. They are dissolved pores and intergranular porosity reservoirs. The fractures are not developed and the reservoir properties are poor. The gas reservoir type is a lithologic gas reservoir with no edge water elastic gas flooding, low porosity and ultra-low permeability. [1] In order to improve the overall development efficiency of the Sulige gas field, six horizontal wells are currently deployed in Block Su-53 and have now been fully drilled to start large-scale application.