The Tectonic Rolling Potential Research For Wen71-Wenanll Of The Wenan Slope

The oil industry’s development is the power of geophysical exploration technology. In recent years, with oil and gas energy demand growth and exploration’s input increase, the geophysical exploration methods also get the quick development. Rolling exploration of oil field development is to specific stages of the inevitable product, is also the oilfield stable and sustainable develop way. Rolling exploration and development has an important guiding significance for the scheme.Wenan slope is located in the Baxian depression in the north east wing. It is a tertiary ago in ancient slope. Because of geodynamic long before Himalayan period, causing the bedrock from east to west strata from new grow old. And since the early tertiary formation from the west to the east of tertiary thickness thinning, very restricted in ancient slope above, thus forming now "east high west low","west thick east thin" slope sedimentary system. Wenan adjacent BaXian slope source sub sags, so the main oil source from BaXian source sub sags. At the same time because of tertiary strata regional western-leaning, make this oil and gas migration to be long-term. In addition, a slope belt for sand one, sand two, sand three parts and the Permian basin of dark mudstone section also have a certain source ability. Above all, the study area has good potential oil source.In the course of the study, use many theory knowledge, such as, petroleum geology, tectonic geology, reservoir geology, stratigraphy, make full use of data,such as, seismic, logging, drilling, try oil, production material. To explain the workstation as the method, with the qualitative to quantitative half again to the quantitative research idea to do the work.Using3-d Structure interpretation technology in the measuring line, arbitrary line, time section, to ensure objective layer forms are reliable, from plane, section and more precise direction argument. In the reservoir study, application of "three instant attribute extraction technology", in combination with drilling, oil, production material, through the construction achievements and reservoir evaluation result, find out the oil and gas distribution in this area. In the geological study, application drilling, seismic, geological data and sequence stratigraphy, carry out of sequence stratigraphy research, combined with the history of hydrocarbon generation and accumulation of the history of the analysis, the application of many index, traps evaluation, for the next step with favorable exploration target.Considering the actual geological problems existing in the work area, also applicant the main following key technology:(a) fine stratigraphic correlation technology;(b) the tectonic detailed interpretation of technology;(c) velocity field set up and application technology;(d) trap evaluation technology, etc.