潜南地区勘探成果认识及下步勘探目标

Exploration Achievements and Goals of South Qianjiang Area

江汉盆地潜江凹陷南部地区现有老新、新沟、拖市、马王庙等4个油田,这些油田发现于20世纪60年代末、70年代初,经过几十年的勘探开发,仍有较大的剩余资源量和勘探潜力。今年,滚动勘探使老新油田的老一区、老二区含油叠合连片;老新-建新地区除构造圈闭发育外,还具备形成构造-岩性圈闭的地质条件,沙市组具备次生成藏的地质条件。通过对三维连片地震资料精细解释和研究,认为新沟-老新圈闭群、拖市-建新圈闭群、马王庙圈闭群剩余资源量丰富,勘探潜力大,是下步勘探的主要目标区。

In the south of Qianjiang Depression in Jianghan Basin, there are four oilfields including Laoxin Oilfield, Xingou Oilfield, Tuoshi Oilfield and Mawangmiao Oilfield, which were all discovered in the late 1960s and in the early 1970s and still have greater remaining resources and exploration potentials although they have experienced tens of years of development. This year, rolling exploration makes researchers discover that the oil-beating sections of Lao Area 1 and Lao Area 2 are polymerized and connected, that Laoxin-Jianxin Area has the geological condition for forming structural-lithologic traps besides structural trap development, and that Shashi Formation has the geological condition for forming secondary pools. By giving a fine explanation and research of 3D connection seismic data, the author holds that Xingou-Laoxin traps, Tuoshi-Jianxin traps and Mawangmiao traps have plentiful remaining resources and great exploration potentials.