后效射孔-英文-新课件

UDP Aftereffect Perforation Technology Introduction PT.Indonesia Bo Yang Energy Services Group Ultra-Deep PenetrationUDP Aftereffect Perforation TeCatalogue1234Aftereffect Perforation Technology IntroductionAftereffect Perforation Technology CompositionAftereffect Perforation AdvantagesAftereffect Perforation Application CasesCatalogue1234Aftereffect PerfoAftereffect body is detonated by explosion wave and metal jet formed by perforating bullet and then releases large amount of chemical energy and heat energy as well as transforming shockwave which could instantly act on the perforated tunnel and realize tunnel diameter enlarged,tunnel depth deepened,tunnel form changed so that improve perforation effect.Meanwhile,the energetic particles and energy wave released by the aftereffect body will strike,erode and strip the tunnel wall,eliminate its compaction area and improve natural filtration capacity around the tunnels so as to increase oil and gas production.孔道内的做功能量提高孔道内的做功能量提高Aftereffect Perforation Technology IntroductionWorking energy increases inside the perforated tunnelAftereffect body is detonated Aftereffect Perforation Technology CompositionPerforated bulletDetonating fuseAftereffect bodySpecially-made bullet carrierAftereffect perforation technology consists of regular blind hole gun,specially-made bullet carrier,integrated aftereffect perforation bullets(regular perforation bullet in the front,Aftereffect body behind)Aftereffect Perforation TechnoPerforated Tunnel Comparison of Aftereffect Perforation and Regular PerforationAftereffect Perforation TunnelRegular Perforation TunnelOpen-type perforated tunnel formClosed-type perforated tunnel formSimulated diagramTest diagramSimulated diagramTest diagramAdopt simulated and actual tunnel comparisonPerforated Tunnel Comparison oAftereffect Perforation AdvantagesSignificant Enlarging and Deepening Effect to Perforated TunnelAftereffect body is carried in front of regular perforation bullet and forms aftereffect tunnel.Compared with regular perforation,the tunnel diameter and depth are both significantly enlarged and deepened.Aftereffect Perforation Regular PerforationUndamaged rock coreFragments of bullets and rock coreUndamaged rock coreShot holeRadial distance(mm)Compacted crushed zoneParticles crushed and low permeability zonePermeability Decreasing zoneAftereffect Perforation AdvantAftereffect Perforation AdvantagesAftereffect perforation and regular perforation effect to concrete target test data comparisonSeeing from above sheet,test on API standard concrete target under similar situation,compared to regular perforation,average penetration depth of aftereffect perforation increases about 18.2%and the average hole diameter enlarges about 16.1%.Aftereffect Perforation AdvantAftereffect Perforation AdvantagesThe energetic particles and energy wave released by the aftereffect body will strike,erode and peel off the tunnel wall,and eliminate the tunnel wall compaction area,meanwhile generate micro fractures so as to improve natural filtration capacity of the tunnel.Aftereffect perforation tunnel(left),after injecting water,there is obvious invasion phenomenon,which indicates tunnel wall compaction area is eliminated and has micro fractures;while regular perforation tunnel(right),after injecting water,there is no invasion phenomenon.UDP Aftereffect Perforation Tunnel FormRegular Perforation Tunnel FormAftereffect Perforation AdvantAftereffect Perforation AdvantagesStable PropertyAftereffect body is specially-made polymer without exploding basis source:under high temperature,its physical and chemical properties are stable:under low temperature,it will not become brittle or invalid;immerged in oily water,it will not become dangerous.With characteristics of high temperature resistance and impact resistance,it is safe and environment friendly during transportation,storage and site operation.Aftereffect Perforation AdvantAftereffect Perforation AdvantagesSafe OperationAftereffect body and regular perforation bullet are coaxial integrated appliances,after regular perforation bullet detonating,the aftereffect body is detonated,its energy is carried on main jet,instantly acts on reservoir space,which can maintain or decrease annular pressure inside gun all over the perforation process so as to effectively avoid gun exploding or sticking.10Increasing annular pressureTraditional enhanced perforationAftereffect perforation Decreasing annular pressureAftereffect Perforation AdvantAftereffect Perforation AdvantagesHealthy and Environment Friendly Aftereffect body doesnt contain radioactive substances or flammable&explosive ingredients.After operation,it will not leave any residue so that it will not cause any pollution to borehole,reservoir and ambient environment.Aftereffect Perforation AdvantAftereffect Perforation Application CasesWell completion of CNOOC Tianjin Branch Bohai HK block adopts perforation and production pipe column combination technology,after perforation they do not lift gun but produce directly.The perforation layer is sand 2nd section of Shahejie Formation,average porosity 16.3%,average permeability 42.7md,perforation section 3546-3589.3m,net perforation depth 27.9m.Using 430 sets type 127 aftereffect body,production after perforation reaches 300m3/d,far more than estimated production 70m3/d.Aftereffect Perforation is upgrading technology production of cluster perforationAftereffect Perforation ApplicBozhong certain well,most of reservoir in perforation layer has already been conducted hydraulic fracture;the perforation layer is sand 3rd section of Shahejie Formation whose reservoir physical property is poor:average porosity 13.7%,average permeability 1.9md,perforation section 3821.6-3993.9m,net perforation 68m.Using 1006 sets type 127 aftereffect body,production after perforation reaches 240m3/d,far more than estimated production 80m3/d.Aftereffect Perforation Application CasesBozhong certain well,most of Pingheng#10 well is an exploration evaluation and production purpose high pressure gas well.Respectively use 9-5/8”casing for Pinghu formation ordinary pressure layer and 7”casing for Baoshi formation high pressure layer to conduct high pressure layer perforation test and ordinary pressure layer perforation test.In order to maximum protect oil&gas reservoir and effectively eliminate perforation tunnel fragments,remove near-well area pollution and recover due production,in high pressure layer,they adopt drill pipe transmitting negative pressure type 178 aftereffect perforation technology to deepen perforation depth and enlarge hole diameter.After conducting aftereffect perforation operation,high pressure low permeability wells do not need reconstruction measures such as acidification and fracture.It obtains the required industry oil&gas test capacity for the first time.The daily gas production is over 100,000 m3,far more than geological design value.Aftereffect Perforation Application CasesAftereffect Perforation ApplicAftereffect Perforation Application CasesHonghuxin 2 well is located in Honghu block Wenmi Oilfield,it adopts type 102 aftereffect perforation technology on 15th August,complementary layer S23-1(section 2172-2177/5m).Currently,the daily fluid production reaches 6.5 ton,water content 1.6%.Compared to adjoining Hu 204 well in the same layer and under same pressure system,its fluid productivity index doubles and gains good expected effect.Aftereffect Perforation ApplicAftereffect perforation application situation in Tuha OilfieldAftereffect Perforation Application CasesAftereffect perforation applicZJ 5-4 well is a production well located in the south part of Ordos Basin,its capacity decreases rapidly,daily fluid output 2.5m3/d.After comprehensive analysis,section 2034.0m-2040.0m is identified as oil-water layer,permeability 0.9 MD,belonging to low porosity and low permeability reservoir.After study,type 102 aftereffect perforation technology is adopted(equipped with regular SQ 102-16-90 gun,pore density 16 pore/m,phase position:90).In October 2011,daily fluid output 10m3/d and the production increasing effect is significant.Aftereffect Perforation Application CasesAftereffect Perforation ApplicRecently,aftereffect perforation technology is used in Daqing Oilfield,through comprehensive analysis,it obtains the evaluation of“significant effect,safe and friendly to environment”.Aftereffect Perforation Application CasesRecently,aftereffect perforatAftereffect Perforation Technology Specification Assembling Adaptability Assembling perforation gun type:73#,89#,10A2#,108#,114#,127#,140#,178#Assembling perforation pore density type:13pore/m,16pore/m,20pore/m,30pore/m,40 pore/mPhase Angle:30、60、90、135Casing:41/2 51/2 7 95/8Temperature AdaptabilityTechnology AdaptabilityCable transmission perforation,pipeline transmission perforation,positive pressureperforation,negative pressure perforation,through tubing perforation.Aftereffect Perforation TechnoAftereffect Perforation Application AdviceAftereffect perforation technology can enlarge perforation hole diameter,deepen perforation depth,eliminate hole wall compaction zone,create micro fractures and significantly improve oil,gas and water filtration capacity.Utilizing aftereffect perforation technology could reflect oil gas water well capacity more veritably.Aftereffect perforation technology could create micro fracture in the tunnel so as to induce fracture acidification and make fracture tunnel push ahead equably.Aftereffect perforation technology contributes to completion of low permeability reservoir;it could perforate in low permeability oil gas reservoir and develop the reservoir better.Aftereffect perforation technology could effectively remove near well pollution or blocking.Aftereffect Perforation ApplicThank You!