Ocean Engineering Equipment and Technology ›› 2017, Vol. 4 ›› Issue (1): 7-13.
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YUAN Ze-ming, HE Peng-fei
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Abstract: Cuttings reinjection is becoming the effective technical means of waste disposal at sea, which involves the disposal of wellbore drilling cuttings, drilling fluid and oily sewage etc. For complex fault block oilfields, waste reinjection scheme selection is one of the most important contents. Based on the analysis on the reservoir geology, two reinjection schemes are proposed: using an existing production well, or constructing a reinjection well. Through comparative study on the two schemes in terms of layer selection, reinjection operation paramters and safety factors, it is determined to construct a new reinjection well. The reinjection layer is further selected and optimized according to the stratigraphic information and directional well data. Finally, the reinjection layer is obtained, which achieves good isolation and satisfies the need of slurry injection capacity, ensuring that slurry does not remain on the surface layer and not channeling reservoir pollution or other layers.
CLC Number:
 
TE53
YUAN Ze-ming, HE Peng-fei. Drill Cuttings Reinjection in Complex Fault Block Oilfield: Layer Selection Scheme Optimization and Engineering Practice[J]. Ocean Engineering Equipment and Technology, 2017, 4(1): 7-13.
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