INTEGRATING THE GEOLOGY, SEISMIC ATTRIBUTES, AND PRODUCTION OF RESERVOIRS TO ADJUST INTERWELL AREAS
A.K. Zhumabekov1,2, Z. Liu1, V.S. Portnov2, X. Wei3, X. Chen3
1State Key Laboratory of Petroleum Resource and Prospecting in China University of Petroleum, Fuxue road 18, Changping, Beijing, 102249, China
2Karaganda State Technical University, N. Nazarbayev Avenue 56, Karaganda, 100027, Kazakhstan
3BGP inc., China National Petroleum Company CNPC, Fanyang West Road 189, Zhuozhou, Hebei, 072751, China
Keywords: Reservoir geological model, sedimentary facies, seismic attributes, well development, remaining oil
Abstract
Dynamic models of the seismic, geological, and flow characteristics of a reservoir are the main tool used to evaluate the potential of drilling new infill wells. Static geological models are mainly based on borehole data combined with dynamic analyses of production dynamics. They are used to determine the redevelopment of and adjustments to new drilling locations; however, such models rarely incorporate seismic data. Consequently, it is difficult to control the changes in geological models between wells, which results in the configuration of well positions and predicted results being less than ideal. To improve the development of adjusted areas in terms of their remaining oil contents, we developed a new integrated analysis that combines static sediment modelling, including microfacies analysis (among other reservoir and seismic properties), with the production behaviour. Here, we illustrate this new process by (1) establishing favourable areas for static geological analysis; (2) studying well recompletion potential and the condition of nonproducing wells; (3) conducting interwell analyses with seismic and sedimentary data; (4) identifying potential sites constrained by seismic and geological studies, as well as initial oilfield production; (5) providing suggestions in a new well development plan.
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