文稿概述大纲overview.pdf

OVERVIEW

Outline

TheLiuhua29-1fieldareaislocatedinapproximately700mwaterdepthtothenortheastofLiwan

3-1field.Followingreservoirandflowassurancestudies,HOCLhasdeterminedthedevelopment

ofLiuhua29-1willbeaseven-welltie-back(fourwellsinitially),usingoneflowlinedirecttoLiuhua

34-2.

TheLiuhua29-1productionflowlineissizedat12-inchnominalODandrunfromLiuhua29-1

manifoldtotheLiuhuaLH34-2PipelineEndTermination(PLET)withanapproximatelengthof

28km.TheLiuhua29-1MEGlinerunsfromtheIn-LineTEEAssembly(ILTA)forLiwan3-1MEG

pipelinetotheLiuhua29-1manifold,andissizedat4-inchNPS.TheumbilicaltoLH29-1,initiates

attheLiwan3-1SubseaDistributionAssembly(SDA)intheILTAarea,crossingtheLiwan3-1

dual22-inchSSTBflowlinesonitsroutetotheLiuhua29-1manifold.RefertoDrawingNo.LIH-

P-LY-93-U-1300forLiuhua29-1flowline,MEGlineandumbilicalroutelayout.

ThepeakfieldproductionflowrateforproductionfromtheLiuhua29-1fieldis88MMscfdfield

gas,withestimatedproductionlifeofabout12years.

LH29-1OverallDevelopmentPlan

SubseaDevelopmentConcept

TheLiuhua29-1Developmentwillbeasevenwellsubseatie-backthatcontainsthefollowing

keydesignfeatures:

•Allwellstiedintoanew8-slotmanifoldlocatedintheLiuhua29-1field

•Twoofthewellsare1.6–3.3kmfromthemanifold,andaretiedintothemanifoldvia8-

inchspurflowlines

•Provisionofcorrosionresistantalloy(CRA)materialsinhightemperatureareasnearthe

subseawelltomitigateeffectsofaggressiveinternalcorrosionintheseareas;

•ProvisionofCRAmaterialsintheproductionjumpersandspurflowlinessincetheyare

notpiggable;

•Useofa4