The Research On Key Technology Of Wellhead Platform For Conductor Supporting

The development technology of Marginal oilfield is the focus of the offshoreengineering industry. In the near ten years, the Bohai Sea and the south sea of Chinahave appeared a number of medium and small fault block oilfield. It is the oceanengineering research project of china how to develop with the economic method.The traditional jacket wellhead platform has several characteristics of thestructure form complex, weight is heavy, the cost is high, the installation processcomplicated and installation resource requirements specification is higher. It is notsuitable for the development that oil and gas reserves is low and has mining period.According to the characteristics of marginal oil field, this paper designs thewellhead platform conductor supporting for BZ3-2oilfield. The foundation of thewellhead platform composes of suction pile and conductors and the main supportstructure of the platrom deck is the conductor. The wellhead platform does not setcomplex production processing facilities and simple construction. The wellheadplatform conductor supporting realize the oilfield development economization.Through the domestic and international various simple platforms structure andfunction research, it will make the conductor realizing the multifunction. Theconductor will supply the hearing capacity with the suction pile together. With thetraditional jacket wellhead platform are compared, the wellhead platform conductorsupporting have Several advantages, that are the simple structure, light weight, lowcost, installation process less and installation resource requirements specificationlower.This paper also use professional Marine engineering software SACS do the detailanalysis for the the wellhead platform conductor supporting. The main analysis havestatic analysis, seismic analysis, detailed fatigue analysis, collapse analysis, andmake sure the wellhead platform is safety and reliability in service during the period.