《斯伦贝谢负压射孔》由会员分享，可在线阅读，更多相关《斯伦贝谢负压射孔（79页珍藏版）》请在金锄头文库上搜索。
1、Schlumberger Private射孔技术刘 川2004年9月ConfidentialSchlumberger PrivateOUTLINE射孔弹和射孔枪系列 - PowerJet动态负压射孔技术 PURE定向射孔技术 - WOPTNovember 2003ConfidentialSchlumberger PrivatePowerJet 聚能弹 聚能弹发展聚能弹发展Hyperjet* introduced 1960sUltrajet* introduced 1980sPowerJet introduced 1998最新聚能弹特点最新聚能弹特点New liner designPenetra
2、tion optimized for hard rockNew liner materialDeeper penetrationExtensive use of SPT researchTest and verify designsConfidentialSchlumberger PrivatePowerJet 与其他弹型对比 ConfidentialSchlumberger PrivateExpendable EnerjetsSpecifications:Phased Power Enerjet - Best in class27.3 in. PEN, 0.25 in. EH (2 1/8-
3、in. spiral, 4 spf, 45)4 spf6 spfConfidentialSchlumberger PrivatePivot GunSpecifications:Power Pivot - Best in class32.8 in. PEN, 0.32 in. EH (1 11/16-in., 4 spf, 90)4 spf4 spf4.4 spfConfidentialSchlumberger Private3 3/8-in. HSDSpecifications:PowerJet 3406 - Best in class38.6 in. PEN, 0.45 in. EH (3
4、3/8-in. 6 spf, 60)Shoots 19 in. into 14,100 psi Nugget Sandstone3 3/8-, 3 1/2-, 3.67-in. HSD guns at 6 spf, 60 6 spf6 spf6 spfConfidentialSchlumberger Private4 1/2-in. HSDSpecifications:PowerJet 4505 - Best in class54.1 in. PEN, 0.42 in. EH (4 1/2-in., 5 spf, 72)4 1/2-in. , 4 5/8-in. , 4.72-, 5-in.
5、HSD guns (5 spf, 72)7-in. HSD gun (12 spf, 135/45; 14 spf, 140/20)5 spf5 spf5 spfConfidentialSchlumberger PrivateSummary API TEST RESULTS RP43 FIFTH EDITION, SECTION 1ConfidentialSchlumberger PrivateWhat is PURE?Schlumberger Propriety Rights Notice:The PURE system is a proprietary property of Schlum
6、berger and is the subject of US Patent Application No.:US 2002/0020535 A1 dated February 21 2001, and PCT Application No.: WO 01/65060.The PURE system may only be used pursuant to a contract agreed with Schlumberger and must not be distributed or divulged to third parties, or duplicated in whole or
7、in part, without prior written permission by Schlumberger.The PURE*, “Perforating for Ultimate Reservoir Exploitation”, system is a new patented technique used to obtain clean perforations. This system utilizes methods to control downhole well dynamics and is a combination of perforating system and
8、completion design.* Mark of SchlumbergerNovember 2003ConfidentialSchlumberger PrivateDamage Impairs ProductivitySand debrisReduced permeability crushed zone, KcDamaged zone, KdNon damaged zone, KDmg depthPenetration, PNovember 2003ConfidentialSchlumberger PrivatePerforation TunnelDamaged (Kc)Undamag
9、ed (K)ConfidentialSchlumberger PrivatePR Versus DamagePerforation = 12 inches, SFP = 6, Kd/K = 0.2PR(P Dmg)/PKc/K=1, PUREKc/K=0.01Kc/K=0.1Kc/K=0.3November 2003ConfidentialSchlumberger PrivateCurrent ParadigmPerforating under balance is the technique of choice for maximizing productivity.(initial wel
10、lbore pressure pore pressure)ConfidentialSchlumberger PrivateLab Set-up for Single Shot TestsConfidentialSchlumberger Private测试术语K = 原状地层渗透率Kc = 射孔损伤带渗透率CFE = 岩心流通效率Ratio of flow through through the perforation tunnel vs flow though a drilled tunnel with the same dimensions and zero damageBest is CF
11、E = 1November 2003ConfidentialSchlumberger PrivateChoose The Best Perforation?Test 1Test 2Test 3Test 4All tests at 1000 psi under balanceCFE = 0.70Kc/K=0.307CFE = 0.21Kc/K=0.049CFE = 0.61Kc/K=0.235CFE = 0.69Kc/K=0.304P = 11.5”P = 11.1”P = 11.25”P = 11.8”November 2003ConfidentialSchlumberger PrivateP
12、erforation DynamicsTime, sec00.20.40.60.81.01.21.41.61.82.0-2000-1000010002000Initial under balance = 1000 psiDifferential Pressure, psiTest 1Test 2Test 3Test 4November 2003ConfidentialSchlumberger PrivateChoose The Best Perforation?Tests shot at 500 psi over balanceTest 7CFE = 0.92Kc/K=0.79Test 8CF
13、E = 0.24Kc/K=0.09P = 11.5”Test 9CFE = 0.41Kc/K=0.19P = 10.4”P = 11.5”November 2003ConfidentialSchlumberger Private00.20.40.60.81.0-1500-50005001500Perforation DynamicsTime, secDifferential Pressure, psiInitial over balance = 500 psi2500-1500-2500Test 7Test 8Test 9November 2003ConfidentialSchlumberge
14、r PrivateWhich Wells are PURE Candidates?All wells are potential PURE candidatesPressure and perm will play a roleWellbore fluid and guns used Must be liquid around the carrier type gunsConveyorInitial static under balance or balanceWireline, Tubing Conveyed, Coiled Tubing, SlicklineInitial static o
15、ver balanceTubing Conveyed PerforatingNovember 2003ConfidentialSchlumberger PrivateChevronTexaco Wyoming Painter FieldLow permeability (5-20md), high strength (20,000 psi) sandstone3-3/8 TCP gunsOil and gas4000 psi underbalance recommended by SPAN4500 psi formation pressureTypical completion shot wi
16、th some underbalance and then a near wellbore acid wash treatment performedNovember 2003ConfidentialSchlumberger PrivateChevronTexaco Wyoming Painter FieldDesigned PURE job to shoot with 400 psi underbalanceResults, six horizontal wells:Zero skins, eliminated $150K acid wash jobs on four wellsOperat
17、ional issues on one wellno improvement after acidizing on one well in very depleted portion of reservoir dog wellStory described in detail in paper SPE 77364November 2003ConfidentialSchlumberger PrivateSPE PapersSPE 71642Laboratory Experiments Provide New Insights into Underbalanced PerforatingSPE 7
18、7364New Underbalanced Perforating Technique Increases Completion Efficiency and Eliminates Costly Acid StimulationSPE 84910 A Step Change in Perforating Technology Improves Productivity of Horizontal Wells in the North SeaNovember 2003ConfidentialSchlumberger PrivatePerforating for Fracture What a F
19、racture Job Does?WellboreMaximum horizontalConfidentialSchlumberger PrivatePerforating for Fracture Near Wellbore Microannulus Pinch PointsRestriction AreaPerforationChannel toFracture WingsWellboreConfidentialSchlumberger PrivatePerforating for Fracture Perforation Angle with the PFPMultiple fracsM
20、aximum horizontalMinimum horizontalMicro-annulus300120 phasingNovember 2003ConfidentialSchlumberger PrivatePerforating for Fracture Fracture Re-orientationFor 60 phasing 2 of the perforations are within 30 of the PFPMaximum horizontalRe-orientationRe-orientation300300November 2003ConfidentialSchlumb
21、erger PrivateSHSHOrient the perforations in the direction of the maximum horizontal stressCreate a single, bi-wing fracture in the Preferred Fracture Plane (PFP)Hydraulic Fracture ImprovementReduce near-wellbore complexities (tortuosity)-Multiple, competing fractures-Micro-annulus effectsReduce frac
22、ture treating pressuresReduce the risk of premature screen-outsNovember 2003ConfidentialSchlumberger PrivateOP System 定向射孔系统Wireline Swivel电缆旋转接头电缆旋转接头Inclinomenter(CCL, etc)测斜仪测斜仪(CCL, 等等)Gyro housingEccentering springs 偏心弹簧偏心弹簧Perforating system射孔系统射孔系统从地面进行电控制从地面进行电控制实时显示实时显示CCLDeviation and rela
23、tive bearing井斜和相对方位井斜和相对方位Tool orientation along dual (x-y) axis仪器沿双仪器沿双(x-y)轴的方位轴的方位Eccentering springs & indexing subNovember 2003ConfidentialSchlumberger PrivateOP System 定向射孔系统长度长度: 23 英尺英尺, 包括陀螺仪外壳，不包括射孔包括陀螺仪外壳，不包括射孔枪枪精度精度: 10 度度井斜井斜 20 或更大或更大射孔枪转位射孔枪转位 50以内以内射孔枪尺寸射孔枪尺寸: 1-11/16英寸到英寸到5英寸英寸 最大耐温最大耐温: 3500F; 最大耐压：最大耐压： 20 kpsiNovember 2003Schlumberger PrivateThank You
