Control of the Sheling Formation deposition by con-temporaneous faults derived from strike-slipmove-ment in Liangjia-Wanchang district, Yitong Basin
Wang Xiaolong1, He Sheng1,2, Shi Wanzhong1,2, Xu Xuelong3, Wu Yunpeng1, Wang Jie1, Li Shaojie1
1. Key Laboratory of Tectonics and Petroleum Resources,Ministry of Education,China University of Geosciences(Wuhan),Wuhan,Hubei 430074,China;
2. Department of Petroleum Engineering,China University of Geosciences(Wuhan),Wuhan,Hubei 430074,China;
3. Zhundong Production Plant,Xinjiang Oilfield Company Ltd.,PetroChina,Fukang,Xinjiang 831511,China
Abstract：Ulobal exploration of oil and gas in continentalbasins has already indicated that contemporaneousfaults have significant effects on the distribution ofdepositional body.The research of oil and gas ex-ploration shows that Yitong Basin has been impliedto be a strike-slip fault basin. Basin formation andevolution are controlled by the dextral rotation andstrike-slip movement of the boundary fault in thenorthwestern margin of the Eocene.Strike-slipmovement is bound to derive a series of contempo-raneous fault in the basin.From the aspect ofstrike-slip fault active time in the northwest edge，distribution and activity time of the secondaryfaults derived from strike-slip movement，this pa-per determines the contemporaneous fault and alsoanalyzes its controlling action on the deposition.Three conclusions made are stated below.①Thestrike-slip movement of boundary faults controlsthe distribution and active time of secondary tensilefaults in the basin.②The contemporaneous faultlocated in Wanchang slope area has a leading con-trol on the depositional bodies which are depositedalong clamp zone between the contemporaneousfaults.③The contemporaneous faults located inLiangjia district control the distribution of deposi-tional bodies.Depositional bodies basically do notcross over the upthrow of contemporaneous faultsin the deposition process.
王晓龙, 何生, 石万忠, 许学龙, 吴云鹏, 王洁, 李劭杰. 梁家—万昌地区同沉积断层对奢岭组沉积的控制作用[J]. 石油地球物理勘探, 2013, 48(1): 134-143.
Wang Xiaolong, He Sheng, Shi Wanzhong, Xu Xuelong, Wu Yunpeng, Wang Jie, Li Shaojie. Control of the Sheling Formation deposition by con-temporaneous faults derived from strike-slipmove-ment in Liangjia-Wanchang district, Yitong Basin. OGP, 2013, 48(1): 134-143.
