井下安全閥簡(jiǎn)介

1、20/04/2006Tubing Retrievable Sub-Surface Safety Valves油管攜帶可回收式井下安全閥Gary StephensonSSSV Global Technical Advisor(井下安全閥全球技術(shù)顧問(wèn)井下安全閥全球技術(shù)顧問(wèn))2Agenda提綱 SSSV Quick Review井下安全閥簡(jiǎn)要回顧 Design Philosophy設(shè)計(jì)原理 Reliability可靠性 Tubing Retrievable Safety Valves油管攜帶可回收式井下安全閥 General Applications應(yīng)用于通常環(huán)境 HPHT Applications

2、應(yīng)用于高溫高壓 Deepwater/XHP Applications應(yīng)用于深海/超高壓環(huán)境 Recent and Current Developments當(dāng)前項(xiàng)目研究 Questions問(wèn)題3Quick Review- What is a Subsurface Safety Valve?回顧回顧-什么是井下安全閥什么是井下安全閥POW!Subsurface Safety Valve A Subsurface Safety Valve is a device which automatically shuts in the well in case of a major malfunction

3、of the surface equipment, preventing the uncontrolled flow of hydrocarbons to the surface.井下安全閥是一種在井口出現(xiàn)重大故障時(shí)，自動(dòng)關(guān)井的裝置。防止井噴。4Why do we install them? 安裝目的安裝目的To prevent infrastructure and production loss.保護(hù)設(shè)備，防止生產(chǎn)受損失。To prevent environmental contamination due to uncontrolled hydrocarbon flow.保護(hù)環(huán)境，防止由于油

4、氣噴出造成的污染。Law requirements. Many countries laws require the installation of SSSV Offshore.法律要求。許多國(guó)家要求安裝井下安全閥，尤其海上完井。To protect lives! 保護(hù)生命5What types of SSSVs are available from Halliburton?哈里伯頓公司可提供什么樣的井下安全閥？哈里伯頓公司可提供什么樣的井下安全閥？Subsurface Safety Valves井下安全閥井下安全閥Surface Controlled (Control Line)地面控制（控

5、制管線）Direct Controlled (No Control Line)井下控制（無(wú)控制管線）Wireline Retrievable鋼絲可回收式 WRSVTubing Retrievable 油管可回收式 TRSVWell StarNE Safety ValveSP Safety ValveDepth StarStorm Choke Valves阻流閥FXE Safety Valve Operated by Flow Velocity 由流體速率控制 Operated by Ambient Pressure由壓力控制 SSSV Landing Nipple needed需要安裝井下安全

6、閥坐落接頭Big Bore Safety Valve（大通徑安全閥）6Halliburton SSSV Philosophy Halliburton SSSV 設(shè)計(jì)理念 Reliability is the Top Consideration 可靠性為第一考慮因素 Design設(shè)計(jì) Verification確認(rèn) Performance性能 Protection保護(hù)7Reliability Design可靠性-設(shè)計(jì) Unique Features特點(diǎn)： Only Offered by HalliburtonIn All of Its TRSVs只有哈里伯頓油管可回收安全閥才能全部具備的 Veri

7、fied 100% Metal-to-Metal Flapper Sealing經(jīng)過(guò)反復(fù)經(jīng)驗(yàn)， 100% 金屬對(duì)金屬閥板和閥座的密封 100% Metal-to-Metal Well Containment in the Closed Position在關(guān)閉情況下100%金屬對(duì)金屬的密封關(guān)井 Enhanced Debris Isolation 增強(qiáng)了對(duì)碎屑的隔離(Positive Debris Barrier at Both Ends of Flow Tube in Full Open Position完全開(kāi)啟時(shí)，流管兩端都有碎屑隔離屏障)8Reliability Verification確認(rèn)

8、 Rogaland testing is the Halliburton standard for TRSCSSV validation testing，Rogaland測(cè)試是哈里伯頓標(biāo)準(zhǔn)安全閥測(cè)試 60 differential openings at max control line pressure在控制管線最大壓力下，60次差式開(kāi)啟 120 slam closures in sand slurry vs. 7 for API 14A120次在沙漿中緊急關(guān)閉，而API（美國(guó)石油工程協(xié)會(huì)）14A標(biāo)準(zhǔn)只要求7次 API 14A Validation and Monogramming API

9、14A 檢測(cè)合格，注有API會(huì)標(biāo) Every size of HST Body Joint thread is validated to the full performance envelope rating每種尺寸的HST本體接扣都是經(jīng)過(guò)嚴(yán)格測(cè)驗(yàn)來(lái)證明符合設(shè)計(jì)工作性能和要求。 All four combinations of Burst, Collapse, Tension, Compression包括全部四種測(cè)試抗內(nèi)擠，抗外擠，抗拉， 抗壓9API Test Facility for Sub Surface Safety ValvesAPI 測(cè)試設(shè)備測(cè)試設(shè)備Purpose目的: Pre-

10、qualify SSSVs to API 14A & Rogaland Test Requirements預(yù)先具備API14A和Rogaland 測(cè)試所需標(biāo)準(zhǔn)Flow testing with clean water or sand slurry用清水或泥漿做流壓測(cè)試Test pressures to 15,000 psi測(cè)試壓力達(dá)到15000psiCapable of flow testing with water at temperatures from ambient to 195F壓力測(cè)試時(shí)溫度從環(huán)境溫度到華氏195可調(diào)Up to 30,000 psi below grade

11、gas test cell高達(dá)30，000psi的氣體測(cè)試裝置Remotely actuated pneumatic controls遠(yuǎn)程氣壓控制4 test stands達(dá)到四種測(cè)試標(biāo)準(zhǔn)10Deep Well Simulator深井模擬裝置Simulates High Temperature & Pressure Environments模擬高溫高壓環(huán)境23.75” Max ID x 60 ft. Deep; 23.75寸最大內(nèi)徑*60英尺深度30,000 psi Max Pressure最大壓力30000psiHeated Air System to 1000F (537C)氣體加

12、熱系統(tǒng)高達(dá)1000FTest Long Assemblies, SSSVs, and Expandable products測(cè)試較長(zhǎng)總成,如井下安全閥和可膨脹設(shè)備Snubbing Jack Tension/Compression抗拉,抗壓測(cè)試裝置11Reliability Protection可靠性-保護(hù) SSSV Reliability Protection Centers可靠性保護(hù)中心 Houma, Louisiana Montrose, Scotland SSSV Repair 井下安全閥修理中心(API 14A Licensed認(rèn)證) Houma, Louisiana Montrose

13、, Scotland蘇格蘭 Singapore新加破 Carrollton, Texas12Control Line Port控制管線接口Piston活塞Flow Tube流管Flapper閥板What is a Control Line?A control line (microtubing) extends from the valve to the surface. It transmits hydraulic pressure to operate the valve.控制管線由閥體接到地面，它通過(guò)傳遞液壓來(lái)控制閥門。Safety Valve安全閥Control Line Protec

14、tors保護(hù)器Control Line控制管線How do our SSSVs work?井下安全閥如何工作井下安全閥如何工作13How do our SSSVs work?井下安全閥如何工作井下安全閥如何工作Subsurface Safety ValveHydraulic Control LinePFormation PressureCLOSEDOPENPressureValve is closed閥門關(guān)閉 Formation (Tubing) Pressure is contained by the SSSV Flapper由擋板承載地層壓力Apply Hydraulic Pressure

15、 to the Control Line 液壓控制管線 Acts on the piston作用在活塞 Moves the SSSV towards the open position.開(kāi)啟開(kāi)啟安全閥安全閥Hyd. Press. Form. Press. + Op. Press.液壓液壓地層壓力地層壓力+開(kāi)啟壓力開(kāi)啟壓力Hydraulic Pressure（液壓）（液壓）Pressure is maintained in the Control Line 控制管線保持壓力 Valve is open. Flow is established to surface.閥門開(kāi)啟，油氣流向地面If p

16、ressure is bled off如果泄壓 Valve goes to its “fail safe” closed position.閥門關(guān)閉，進(jìn)入安全保護(hù)狀態(tài)Fail Safe Condition 安全保護(hù)狀態(tài)14Safety Valve Applications/Considerations井下安全閥應(yīng)用場(chǎng)合和考慮因素 Well Construction打井類型 Land, Platform, TLP or Spar (dry tree)陸地井，生產(chǎn)平臺(tái)，海洋完井 Subsea (wet tree)深海完井 Well Type井的類型 General Production通常的生產(chǎn)井

17、 Injection (water and/or gas)注水或注氣井 HPHT高溫高壓 Well Conditions井的情況 CO2, H2S Content 二氧化碳，硫化氫存在及含量15Tubing Retrievable Safety Valve Products油管攜帶可回收式井下安全閥產(chǎn)品 General Production Applications通常生產(chǎn)環(huán)境下應(yīng)用 WellStar NE HP/HT, Large Bore and Critical Applications高溫高壓, 大通徑和臨界條件 下的運(yùn)用 SP Deepwater/XHPHT Applications

18、深海/超高溫高壓 DepthStar16Reliability Performance性能 SP 4000+ valves supplied已超過(guò)4000安全閥應(yīng)用到世界各地 15,600+ valve years of service超過(guò)15,600次以上的服務(wù)每年每閥 99.3% Reliability at 20 years service life20年99.3%可靠性 WellStar 10,000+ valves supplied已超過(guò)10,000+安全閥應(yīng)用到世界各地 40,500+ valve years of service超過(guò)40,500次以上的服務(wù)每年每閥 97.8% R

19、eliability at 20 years service lifel20年97.8%可靠性 NE 700+ valves supplied since introduction in mid-2003已超過(guò)700+安全閥應(yīng)用到世界各地 5300+ valve years of service超過(guò)5300次以上的服務(wù)每年每閥17Applications應(yīng)用場(chǎng)合: 1000 Ft Max Setting Depth 1000英尺最大下入深度 2 3/8”, 2 7/8”, 3 ” & 4 ” Tubing Sizes相連油管扣型為2 3/8”, 2 7/8”, 3 ” & 4

20、” 5000 psi 工作壓力35Mpa Oil & Gas油氣井 Limited H2S & CO2不含，或少量的CO2&H2SWell Construction: Platform or Land陸地井或海洋生產(chǎn)平臺(tái)Well Types: Production and Injection生產(chǎn)或注入井Special Applications: Cementing, Fracturing特殊應(yīng)用場(chǎng)合：過(guò)安全閥固井，壓裂等作業(yè)General Production - WellStar TRSV通常生產(chǎn)環(huán)境的應(yīng)用- WellStar TRSV18Unique Flow Tu

21、be Isolation獨(dú)特的流管隔離設(shè)計(jì)100% MTM Well Containment100%金屬對(duì)金屬密封No Leak Paths in Communication System通路中無(wú)泄露途徑General Production - WellStar TRSV通常生產(chǎn)環(huán)境的應(yīng)用19General Production - NE TRSV通常生產(chǎn)環(huán)境的應(yīng)用Applications應(yīng)用場(chǎng)合: Non-Elastomer不含彈性密封件 2 3/8”, 2 7/8”, 3 ” or 4 ” Tubing Size 2 3/8”, 2 7/8”, 3 ” or 4 ” 油管扣型 5000 p

22、si to 10,000 psi WP； 35Mpa-70Mpa工作壓力 1500 - 2000 Ft Max Setting Depth； 1500 - 2000 Ft 最大下入深度 Oil & Gas油氣井 Higher CO2 & H2S Content較高含量的CO2&H2SWell Construction: Platform, Land陸地或海洋生產(chǎn)平臺(tái)Well Types: Production and Injection生產(chǎn)或注入井Special Applications: Cementing, Fracturing特殊應(yīng)用場(chǎng)合：過(guò)安全閥固井，壓裂等作業(yè)

23、Slimline OD: 4 ” Tbg Inside 7” Casing小外徑型號(hào)：4 ”下入到7”套管里20Enhanced Debris Isolation and Protection增強(qiáng)型碎屑隔離和保護(hù)增強(qiáng)型碎屑隔離和保護(hù)Open PositionClosed Position關(guān)閉位置Flapper Isolated From Wellbore by MTM Seating of Flow Tube閥板通過(guò)和流管金屬對(duì)金屬的密封實(shí)現(xiàn)與井眼的隔離Inverted Flow Tube Prevents Debris From Accumulating On Its Upper End 反

24、向的流管防止碎屑在上端堆積General Production - NE TRSV通常生產(chǎn)環(huán)境的應(yīng)用21 Uses the SP TRSV Field Proven Actuator應(yīng)用了經(jīng)過(guò)現(xiàn)場(chǎng)證實(shí)的SP 井下安全閥的活塞系統(tǒng) Single Rod Piston單個(gè)液壓活塞 Non-Elastomer Seals無(wú)彈性密封 Solid Top Sub Construction Provides for Highest Hydraulic Control Chamber Rating in the Industry整體的上部短節(jié)提供工業(yè)上最高的液壓控制壓腔壓力級(jí)別General Product

25、ion - NE TRSV通常生產(chǎn)環(huán)境的應(yīng)用22WellStar and NE TRSV Specifications WellStar and NE TRSV 參數(shù)23HP/HT, Large Bore高溫高壓,大通徑 - SP TRSVApplications應(yīng)用場(chǎng)合: 5 ” and Larger Tubing Sizes 等于大于5 ” 油管尺寸 Non-Elastomer, MTM Static Piston Seals不含彈性橡膠件, 活塞靜止時(shí)形成全金屬的密封 Up to 20,000 psi WP Depending on Size某些型號(hào)工作壓力達(dá)到140Mpa, 甚至超過(guò)

26、Max Setting Depths to Approx. 9000 ft最大下入深度9000ft Up To 400 F Temperature Rating溫度工作范圍高達(dá)400F Critical/Severe Service極限/惡劣工作環(huán)境中Well Construction: Platform, Land, TLP, Spar, and Subsea (Extended Life)陸地井, 海洋生產(chǎn)平臺(tái), 深海完井Well Types: Production, Injection, HPHTPEAK Systems小外徑系統(tǒng) 7” Tbg in 9 5/8” Csg下入在9 5/8

27、”套管里面的7” 安全閥 9 5/8” Tbg in 13 3/8” Csg下入在13 3/8套管里面的安全閥24HP/HT, Large Bore高溫高壓,大通徑 - SP TRSV Ultimate Design Solution for Reliability可靠性最佳設(shè)計(jì)方案 Unsurpassed Performance卓越的性能 Enhanced Debris Isolation and Protection增強(qiáng)型碎屑隔離和保護(hù) Full Metal-to-Metal Containment 完全金屬對(duì)金屬的密封 Premium Material Construction優(yōu)質(zhì)的材料

28、結(jié)構(gòu)25 Superior Hydraulic Actuator極佳的液壓傳動(dòng)裝置 True Metal-to-Metal Flapper Sealing真正的金屬對(duì)金屬閥板密封 Premium Metal-to-Metal Connections優(yōu)質(zhì)金屬密封連接扣型Performance Based Sealing優(yōu)越的密封26 Full Metal-to-Metal Sealing Integrity in Open/Closed Position開(kāi)啟/關(guān)閉位置完全金屬對(duì)金屬密封 Piston Rod Sized for Maximum Strength活塞桿尺寸設(shè)計(jì)能承受最大強(qiáng)度 Inc

29、reased Hydraulic Control Chamber Rating By Solid Top Sub Construction上部接頭整體構(gòu)造使液壓腔等級(jí)增強(qiáng) Consistent Design Through All Sizes and Pressure Ranges絕大多數(shù)的尺寸和壓力等級(jí)都有相配的產(chǎn)品 Superior Hydraulic Actuator極佳的液壓傳動(dòng)裝置極佳的液壓傳動(dòng)裝置Performance Based Sealing優(yōu)越的密封27SP Hydraulic Piston Actuator液壓活塞傳動(dòng)裝置Upper Metal-To-Metal Hydra

30、ulic Seal上部金屬對(duì)金屬液壓密封Non Elastomer Dynamic Seals無(wú)彈性件動(dòng)態(tài)密封Lower Metal-To-Metal Hydraulic Seal下部金屬對(duì)金屬液壓密封28Performance Based Sealing優(yōu)越的密封Spherical Sealing Flapper Providing Unsurpassed MTM Sealing球狀閥板提供良好的金屬對(duì)金屬密封Recognized by Petroleum Engineering International for Innovative Engineering被國(guó)際石油工程認(rèn)可的創(chuàng)新技術(shù)Fl

31、apper Seat Coupled to Valve, Loading by Torqued MTM Seal閥板座和閥體做成整體, 當(dāng)金屬密封的扣型擰扣時(shí)載入Verification Sand Testing Exceeding API Class 2 by Nearly 20 Fold在出砂環(huán)境中做測(cè)試超過(guò)API Class 2級(jí)近20次True Metal-to-Metal Flapper Sealing真正的金屬對(duì)金屬閥板密封29Wiper Seal Isolates the Top上部隔離密封Flow Holes Ensure Continuous Flushing During

32、Flowing Conditions流管確保在在生產(chǎn)過(guò)程中的不斷清洗Metal to Metal Seal on the Piston Isolates the Hydraulic System活塞的金屬密封系統(tǒng)起到極佳的隔離密封作用Isolation of Upper End上部隔離密封Enhanced Debris Isolation增強(qiáng)了碎屑隔離功能30MTM Downstop Seat金屬對(duì)金屬的底部截止密封Complete Isolation of the Closure Mechanism關(guān)閉狀態(tài)下完全隔離Eliminates Flow From Entering the Oper

33、ator of the Valve防止流體流入閥體Full Protection During Flowing Conditions流體流動(dòng)狀態(tài)下完全保護(hù)Enhanced Debris Isolation增強(qiáng)碎屑隔離功能Isolation of Lower End下端隔離Open Position31Dedicated Exercise Profile優(yōu)越的活動(dòng)結(jié)構(gòu) Standard Feature Within All SP TRSVs所有SP 的標(biāo)準(zhǔn)特性 Allows Flow Tube to be Manipulated Upwards or Downwards Via Slicklin

34、e可允許流管經(jīng)過(guò)鋼絲工具上下運(yùn)動(dòng) Helps Prevent TRSV Permanent Lock Open可有效防止永久鎖常開(kāi)32SP TRSV - Debris/Scale Protection SummarySP TRSV-防碎屑/積垢功能Features特點(diǎn)Benefits優(yōu)越性Wiper Ring On Upper Flow Tube Downstop在在流管運(yùn)行到最底端時(shí)其上部的刮環(huán)流管運(yùn)行到最底端時(shí)其上部的刮環(huán)Metal-to-Metal Face Seat At Flow Tube流管上流管上金屬面對(duì)金屬面的底座金屬面對(duì)金屬面的底座Critical Components Is

35、olated From Well Debris/Scale With Valve In Open Position 非常關(guān)鍵的組成部分非常關(guān)鍵的組成部分,在安全閥打開(kāi)狀態(tài)下隔在安全閥打開(kāi)狀態(tài)下隔離碎屑離碎屑Clean-Out Ports In Flow Tubes Upper End流流管上端的清洗孔管上端的清洗孔 Area Above Flow Tube Free Of Solids Buildup 避免了流管上方的碎屑堆積避免了流管上方的碎屑堆積Flow Tube Fluted Seat Guide流管座上有導(dǎo)向流管座上有導(dǎo)向槽槽Fluted Guide Provides Maximum

36、Protection To The Flow Tube Allowing Fluids To Enter And Exit During Valve Operation導(dǎo)向槽在安全閥打開(kāi)過(guò)程中允許流導(dǎo)向槽在安全閥打開(kāi)過(guò)程中允許流體通過(guò)的同時(shí)最大程度的保護(hù)了流管體通過(guò)的同時(shí)最大程度的保護(hù)了流管Prevents Eccentric Loads on Flow Tube Selective Internal Exercise Profile可選擇內(nèi)部可選擇內(nèi)部活動(dòng)結(jié)構(gòu)活動(dòng)結(jié)構(gòu)Flow Tube Can Be Manipulated By Slickline If Necessary如有必要可進(jìn)行鋼絲

37、作如有必要可進(jìn)行鋼絲作業(yè)上下活動(dòng)流管業(yè)上下活動(dòng)流管Helps Prevent Permanent Lock Open or Workover 防止永久鎖定長(zhǎng)開(kāi)防止永久鎖定長(zhǎng)開(kāi) Teflon Coated Flow Tube ID Available (Baked On By Means of Heat Treat Ovens)可選含內(nèi)涂可選含內(nèi)涂Teflon層的流管層的流管Prevents Scale Build-Up防止碎屑堆積防止碎屑堆積33SP TRSV Specifications SP TRSV參數(shù)34Recent and Current Developments當(dāng)前項(xiàng)目研究 Sli

38、mline TRSV 9 5/8” SP TRSV For 13-3/8” Casing; 在 13-3/8” 套管里下入的9 5/8” SP TRSV 7” SP TRSV For 9-5/8” Casing在9-5/8” 套管里下入的7” SP TRSV 4 1/2” NE TRSV for 7” Casing在7” 套管里下入的4 1/2” NE TRSV Cementing Through TRSVs可進(jìn)行擠注水泥作業(yè)的安全閥 XHP/HT超高溫高壓 Deep-Set TRSV深井用井下安全閥 DepthStar35 SP TRSV design設(shè)計(jì) 11.75” OD (High-S

39、trength Nickel Alloy高強(qiáng)度鎳合金) 12.02” OD (80ksi MY Material抗拉材料) Runs inside 13 3/8” casing下入在13 3/8”套管里的 8.50” ID內(nèi)徑 Compatible with 9 5/8” 47# tubing和9 5/8” 47#套管相配套的 5,000 psi Working Pressure5,000psi工作壓力 Installed in GOM and Middle East在墨西哥灣和中東已經(jīng)安裝9 5/8” SP TRSV 367” Slimline SP TRSV 7”小外徑安全閥SP TRSV

40、 design設(shè)計(jì)8.38” OD 外徑(High Yield Nickel Alloy高強(qiáng)度鎳合金)8.52” OD 外徑(80ksi MY Material80ksi的抗拉強(qiáng)度的合金)6000 psi rating with 5.813” ID;6000psi工作壓力,內(nèi)徑5.813”5000 psi rating with 5.875” ID;5000psi的工作壓力,內(nèi)徑為5.813”.374 1/2” Slimline NE TRSV 4 1/2”小外徑安全閥 NE TRSV design設(shè)計(jì) 5.965” OD外徑 (7” 32# drift套管通徑 5.969”) 3.813”

41、ID內(nèi)徑 Up to 7500 psi Working Pressure高達(dá)7500psi的工作壓力38Cementing Through TRSVs過(guò)安全閥注水泥 1000+ 2 7/8” and 3 ” WellStars for Unocal and Chevron in Thailand泰國(guó) 100+ 3 ” NEs for PTTEP in Thailand泰國(guó) 4 ” NE for Shell UK英國(guó) 30+ 5 ” SP for NAM, Shell UK, and PDO (Shell Oman)39XHP/HT Applications超高溫高壓應(yīng)用3 ” 20,000 p

42、si SP TRSCSSV Available工作壓力20000psi的SP井下安全閥 5.495” OD x 2.313” ID3 ” 30,000 psi Feasibility study可行性的研究4 ” 20,000 psi Feasibility study可行性的研究5 ” 15,000 psi - Completed Design Study已完成設(shè)計(jì) 8.38” OD x 4.562” ID5 ” 25,000 psi Feasibility study可行性研究7” 10K SP TRSCSSV Used by Kela 2 & AGIP KCO 9.07” OD

43、x 5.750” ID應(yīng)用于塔里木和AGIP KCO40Deepwater and XHP/HT DepthStar TRSV深井和超高溫高壓應(yīng)用Revolutionary Step Change 革命性的里程碑 Completion Design and Valve Placement 完井設(shè)計(jì)和安全閥下入 Reliability可靠 Cost of Overall Operating System整體花費(fèi)小 Safety安全 Enables the Future未來(lái)的需要20/04/2006The Leader in Subsurface Safety Valves井下完全閥中的領(lǐng)袖Why

44、?為什么?Best Reliability In The Oil Field油田上最可信賴Best In Class Sealing System同等級(jí)中最好的密封系統(tǒng)Superior Debris and Corrosion Protection 優(yōu)越的防碎屑和抗腐蝕能力End Result:最終結(jié)果:Provides Maximum Downhole Safety最大的保證井下安全Minimizes/Eliminates Down Time減少/消除停工時(shí)間Best Valve最好的安全閥More Production/Revenue For The Operator給操作者提供更多的產(chǎn)能

45、/效益42TRSV Technical Considerations設(shè)計(jì)井下安全閥時(shí)需考慮的技術(shù)參數(shù) Valve Size尺寸及型號(hào) Pressure Rating工作壓力等級(jí) ID & Nipple Profile內(nèi)徑，槽面內(nèi)徑 Tubing Material / TRSV Material材料 Service H2S, CO2, Standard是否還有腐蝕性氣體 Setting Depth下入深度 Self-Equalizing or Non-Equalizing是否自平衡 Tubing Thread Size & Weight油管扣型 Casing Size & Weight套管扣型，尺寸 By-Pass Lines43TRSV Technical Considerations contd設(shè)計(jì)井下安全閥時(shí)需考慮的技術(shù)參數(shù)-繼續(xù) API Requirements API標(biāo)準(zhǔn)規(guī)定 Control Lin