Reservoir formation mechanism analysis and deep high-quality reservoir prediction in Yingcheng Formation in Longfengshan area of Songliao Basin, China

作     者：Yongmei Zhang Xiaoqi Ding Peng Yang Yan Liu Qi Jiang Shaonan Zhang 

作者机构：School of Geoscience and TechnologySouthwest Petroleum UniversitySichuan 610500China State Key Laboratory of Oil and Gas Reservoir Geology and ExploitationChengdu University of TechnologySichuan 610059China Northwest Petroleum Bureau of SinopecXinjiang 830011China 

出 版 物：《Petroleum》 (油气（英文）)

年 卷 期：2016年第2卷第4期

页      面：334-343页

学科分类：0709[理学-地质学] 0819[工学-矿业工程] 0808[工学-电气工程] 081803[工学-地质工程] 08[工学] 0820[工学-石油与天然气工程] 0817[工学-化学工程与技术] 0818[工学-地质资源与地质工程] 0708[理学-地球物理学] 0807[工学-动力工程及工程热物理] 0815[工学-水利工程] 0816[工学-测绘科学与技术] 0827[工学-核科学与技术] 0813[工学-建筑学] 0703[理学-化学] 0814[工学-土木工程] 

基　　金：the financial support of the National Nature and Science Fund project(41302115) Post-doctoral Science Fund(2012M511941) 

主　　题：Diagenesis Laumontite cement High-quality reservoir Secondary pore The outside subaqueous fan-delta 

摘      要：Although commercial gas flow was produced in several wells with recent years exploration of Longfengshan area in Changling fault sag,the formation mechanism and controlling factors for high-quality reservoirs still remained ***,the Yingcheng tight gas reservoirs of Longfengshan area are used as an example to characterize high-quality reservoir formation mechanism and distribution *** on the thin section,SEM,X-ray diffraction,computed tomography(CT)scanning,burial history,constant-rate mercury penetration and physical properties testing,formation mechanism and controlling factors for high-quality reservoirs were *** show the following ***,the reservoir is dominated by chlorite and laumontite cements,and compaction is the most important factor to control reservoir physical *** to this,the reservoir can be divided into compacted tight sandstones,chlorite-cemented sandstones and laumontite-cemented ***,the high-quality reservoirs are formed due to early extensive laumontite precipitation and the later dissolution of laumontite by organic ***,it is found that the distribution of cementation and dissolution exhibits some regulations in sedimentary facies,and the distribution is mainly effected and controlled by the lake water and charging of fresh ***,the distribution model of various types of sandstones was *** over diagenesis and sedimentary facies reveal that the high-quality laumontite-cemented sandstones exist in the outside subaqueous fan-delta of the deep sag in Longfengshan *** findings have been validated by recent exploration wells which obtained high industrial gas flow.