The Study Of Horizontal Well Developing Adaption Of Fuyunensis Layer In AoBaota Southern Aere

Aim to AoBaota Southern Area fuyunensis reserves abundance low permeability low, sand body continuity bad, lithology and oil-bearing ability changing fast,individual straight well deliverability low, in order to enhance horizontal well in region of interest drilling accuracy and reservoir drilling rate, this thesis uses the technologies such as structure elucidation, inversion, predication, geometric modeling, we developed delicate structure elucidation, tracking and reservoir forecasting techniques, three-dimensional geologic model structure optimized horizontal well development beneficial target area and completed horizontal well optimization design. By means of research, the following achievements have gained:In the aspect of main layer lateral forecasting we mainly adopted reservoir inverse technology basing on the model to define main layer developing scale and steric distribution characters:In the area of well control degree low, we used the technologies such as seismic facies analysis, we further know sand body’s stability and its distribution trend.We adopted different development plans in target block:the minor fault block, which cannot be injected water, we used horizontal well and fracture to put into production which economic benefit is the best. The expansive block, we used subjunctive method to analyze development effect and we confirmed that some part using straight well, then according to the characters of main layer to confirm the material design scheme.According to the questions about the development process of the very low permeability fuyunensis layer, by optimizing development modes that matched with geologic condition, we maximized the reserves of the effective control of resources and the economic and effective use of resources reserves.In the design process evaluation of horizontal wells, according to different stages of implementation, effective implementation of the lower risk, improve the whole economic reserves of development process.