石油开采外文翻译---北福克兰盆地石油地质(编辑修改稿)

石油开采外文翻译---北福克兰盆地石油地质(编辑修改稿)内容摘要：

ration of oil into the overlying horizons. These shallower horizons were the main target in the first drilling campaign and the failure to find mercial hydrocarbons may be the result of the difficulty in charging these horizons. Desire now believes that the major potential of the Basin may be in the untested flanks of the Basin at the level of the mature oil source rock as shown in fig 4. At this level the oil would have only a short distance to migrate from the mature oil source rock to the predicted reservoir rocks. In addition the best reservoir development may be on the flanks of the Basin. The 3D seismic data acquired in 2020 was designed specifically to test this new model. Prospects Nine prospects have been identified (see ), most of which have multiple targets. Only two of these will be described in detail to illustrate the variety of prospect types found in the Basin. Liz Prospect This is the largest prospect and is likely to be the first one drilled in the next campaign. It is a stratigraphic trap and based on seismic amplitude mapping has geometry suggestive of a fandelta deposited by a large river flowing into the lake see fig 5. This fandelta is detached by faulting from the up dip feeder channel and lateral sealing is provided by the rich oil source rock, which is mature at the distal end of the fan. The feeder channel shows drape on the seismic data and this is possible evidence for the presence of coarse sandstones, which are likely to provide good reservoirs. In addition to testing the Liz fan at the well location the edge of the Beth fan will also be drilled. The water depth is around 350 metres and the total depth of the well will be circa 3,000 metres. Ninky Prospect This is an example of a structural trap. At a number of levels immediately above the mature oil source rock the structural contours are closed against a fault. Unlike the Liz prospect vertical migration up a fault is required to fill the traps but on the seismic a fault is clearly defined reaching from the mature source rock to the overlying traps. As this prospect is near the centre of the Basin, thinner poorer quality reservoirs might be expected but again seismic amplitude geometrics suggest that thicker distal fan sandstones might be present. This prospect is located in a water depth around 400 metres with a planned total depth of circa 3,100 metres. Environment Desire recognises the international importance of the environment of the Falkland Islands and is mitted to doing everything possible to minimise any impact on the environment its operations may have. All of the operations will be carried out in accordance with UK North Sea standards and only waterbased drilling muds and low toxicity chemicals will be used. To identify all the possible impacts of the three well operation, Desire missioned RPS, one of the leading environmental consultancies in Europe, to undertake an environmental impact assessment (EIA). RPS suggested a number of measures to minimise environmental impact and concluded that the proposed operations can be carried out without a significant impact on the environment. Full details of the EIA can be found on the Desire website at . Drilling Drilling in the North Falkland Basin is relatively straightfor。