文明寨油田复杂断块区构造演化与油气成藏

Structure evolution model and accumulation of oil and gas in complicated area of
Wenmingzhai Oilfield

左代容

Zuo Dairong

中原油田分公司油藏经营管理办公室，河南 濮阳 457001

Reservoir Management Office, Zhongyuan Oilfield Company, SINOPEC, Puyang 457001, China

文明寨油田是极复杂中渗油藏类型中最复杂、最破碎的油藏，目前已进入高含水开发后期。由于地质构造的复杂性和注采井网的不完善，在局部区域仍存在剩余油富集区。通过分析油藏所处的区域构造背景，理清了构造形态特征和断块划分，落实了构造发育演化机制，明确了构造对沉积储层、油藏形成的控制作用，建立了构造控油机理模式，有效地指导了老油区及类似复杂地区的油藏滚动扩边。

Wenmingzhai Oilfield is the most complicated and broken reservoir in complex reservoir with medium permeability, which goes into the late period of development with high water cut. Because of the complex geological structure and imperfect injectionproduction well pattern, there is still local area with enriched remaining oil. Through analysis of reservoir’s regional tectonic background, the structural morphological characteristics and the block partition, structure evolution mechanism, control function of
structures to sedimentary reservoir as well as reservoir formation are made clear, and mode of tectonic control mechanism is established, which can efficiently guide reservoir exploitation of old oil region and other similar complex regions.