垦东-桩海潜山披覆构造带油气分布规律及主控因素

垦东-桩海潜山披覆构造带是位于沾化和桩东2个富生油凹陷之间、由多个潜山披覆构造组成近北西走向的大型潜山披覆构造带,该带油气分布非常复杂。通过构造演化和地层发育综合研究,分析了该带油气分布规律和主要控制因素。认为受郯庐断裂带走滑运动和渤海湾盆地第三纪"幕式"裂陷演化的影响,垦东-桩海潜山披覆构造带自北向南形成不同位序的潜山披覆构造。油源条件、有效储盖组合和油气输导方式,决定了由南向北含油层系增多、油藏类型逐渐复杂的油气分布特点。

Hydrocarbon Distribution Rule and Its Main Controlling Factors in Kendong-Zhuanghai Buried Hill Draping Structure

Kendong-Zhuanghai buried hill draping structure was located between Zhanhua Depression and Zhuangdong Depression where oil generation was rich,it was composed of many buried hill draping structures of NW trend,where oil and gas distribution was complex.By comprehensively studying structural evolution and stratum growth,the rule of oil and gas distribution and the main control factors were analyzed in structural belt.It is considered that influenced by the strike-slip movement of Tanlu Faults and "episodic" chasmic evolution,buried hill draping structures with different sequences are created from the north to south in Kandong-Zhuanghai buried hill draping structure.The characteristics of oil zones increasing from the south to north,reservoir types getting more and more complex are determined by the conditions of oil sources,effective combination of reservoirs and cap rocks and way of oil and gas transport.