1、V-PilotVertical Drilling System垂直鉆井系統(tǒng),Sperry Drilling Services September 2008 Jiu Sijun 酒思君 China DD Technical Advisor,V-Pilot 垂直鉆井系統(tǒng),1,What is it? 什么是垂直鉆井系統(tǒng),4,Whats the results? 使用效果,2.,How does it works? 工作原理,3,Where has Sperry Drilling Services used it? 應(yīng)用情況,5,Whats the advantages for this new te

2、chnology? V-Pilot的優(yōu)勢,A tool that utilizes gravity to direct porting of hydraulic fluids to the appropriate pad 利用重力作用直接使流體推擊相應(yīng)的墊片 A vertical drilling system that maintains verticality on the fly with minimal intervention. 最小干預(yù)的實時調(diào)整的一種垂直鉆井系統(tǒng) A simple, elegant solution that avoids electronics. 簡單而嚴(yán)密的無

3、電子元件的解決方案 Designed to increase reliability and temperature capability in harsh drilling conditions惡劣鉆井環(huán)境下改善工具的可靠性和抗溫能力 A tool that enables fast drilling with high WOB whilst maintaining verticality 高鉆壓快速鉆直的一種鉆井工具,What is it? 什么是V-Pilot？,V-Pilot Components 組成部件,The V-Pilot has two sections. The upper

4、 section is a modified GeoForce Motor. The lower section is the vertical drilling device. V-Pilot 由兩部分組成，上部是改良的GeoForce馬達(dá)，下部是垂直鉆井部分,The two parts are delivered separately to the rig site and are easily connected before going in the hole. 兩部分分開運輸?shù)骄畧觯裸@時直接連接,The lower section is a hydro-mechanic devic

5、e. 下部是液壓機械設(shè)備 The most important parts are: 重要部件包括： Pendulum 大鐘擺總成 Valve assembly 閥門總成 Pads. 墊片總成,U-Joint and Pendulum Assembly U型接頭與大鐘擺總成,Valve Assembly 閥門總成,Piston Assembly 活塞總成,VERTICAL DRILLING DEVICE 垂直鉆井設(shè)備部分,How it Works 工作原理,The GeoForce motor is powered by the drilling fluid and its shaft rot

6、ation is transferred to the shaft in the lower section. GeoForce馬達(dá)通過泥漿驅(qū)動將動力傳遞到下部的垂直鉆井設(shè)備部分 The shaft rotation powers up the hydraulic pumps. 馬達(dá)傳動軸驅(qū)動垂直鉆井設(shè)備的液壓泵 The valves in the valve assembly are activated buy the pendulum when the well is deviated from the vertical. Deviation from vertical as low as

7、 0.2 are enough to activate the valve. 當(dāng)產(chǎn)生井斜時，大鐘擺系統(tǒng)激活閥門總成的閥門，產(chǎn)生側(cè)向力，使鉆具重新回到垂直狀態(tài)。最小井斜0.2時可以激活閥門。,How it Works 工作原理,When one (or two) valve is opened by the pendulum, it allows the hydraulic fluid to actuate one (or two) of the 4 pistons in the opposite side. 當(dāng)一個或兩個閥門被大鐘擺打開之后，水力流體激活反方向的4個活塞中一個或兩個 The p

8、istons maintain pressure against the hole wall forcing the bit (push-the-bit) to drill laterally bringing the well back to vertical. The pistons will stay extended until the well returns to the vertical and the valve(s) are no longer activated and are retracted by springs. 活塞推擊井壁，使鉆具回到垂直狀態(tài)?；钊奈恢靡恢毖由?/p>

9、直到井眼垂直沒有側(cè)向力為止,How it Works 工作原理,Valve Assembly 閥門總成,Pad Assembly 墊片總成,Pivot Joint Assembly 樞軸總成 low friction joint 低摩擦系數(shù)接頭 maximizes pendulum side force 能產(chǎn)生最大的大鐘擺側(cè)向力,Valve Assembly 閥門總成 light load actuation 輕載荷激活功能 viscous damping to reduced system oscillation (water hammer effect) 粘滯阻尼減少震動“水錘”效果,Ki

10、ck Pad Assembly 激活墊片總成 Four pistons producing variable sideforce from pads 四個活塞可以產(chǎn)生變化的側(cè)向力 Flow holes through pads to eliminate mud entrapment 墊片流道孔減少泥漿的滯留 Rigsite-changeable pads to change hole size 墊片的大小可現(xiàn)場根據(jù)井眼的大小進(jìn)行調(diào)試,Pivot Joint Assembly 樞軸總成,How it Works 工作原理,Location of extending blades for corr

11、ective force 可延伸的勒板，校正力的大小,V-Pilot Vertical Drilling System,Field Locations 油田位置,Foothills of Canadian Rockies. 加拿大丘陵地帶的巖石 Rock properties with high compressive strength where 2-5 m/hr typical, 高巖石壓縮強度，平均機械鉆速2-5m/h Formation dips of 70. 地層傾角70 3/30m natural build rate. 自然造斜3/30m Extremely high vibra

12、tion area. 井下震動極高地區(qū) Cleanout trip always required prior to running casing.下套管之前必須通井,Field Test Result 試用結(jié)果,Successfully drilled 504 m (1,653 ft) in two runs under AFE target time. 在滿足AFE時間的前提下，兩趟鉆完成了504米 Maintained low inclination 保持了較小的井斜 Completed entire interval with one roller cone bit field ave

13、rage is 3-4. 一支牙輪鉆頭完成整個井段，而該油田平均需要3-4只 ROP up to 7 m/hr, at the high end of the field average. 機械鉆速7m/h，是該油田的平均之最。 Tool proved largely insensitive to WOB up to 20 tons used. 最大鉆壓達(dá)到20噸 Eliminated reaming and back-reaming due to outstanding hole quality 井眼質(zhì)量光滑，減少了短起下鉆時間和倒劃眼時間,Field Test Result 試用結(jié)果,Co

14、nfigurable on the rig site 現(xiàn)場組裝 Change hole sizes at casing points 下完套管后，現(xiàn)場根據(jù)井眼大小進(jìn)行調(diào)整,Designed for Harsh Drilling 用于惡劣鉆井環(huán)境 Robust with no electronics means lower risk of failure 皮實耐用，沒有電子元器件，工具失效風(fēng)險小,Matched to the rig 滿足鉆機負(fù)荷 GeoForce or Performance motor depending on rig capability 根據(jù)鉆機性能匹配GeoForce或

15、高性能馬達(dá),Correction on the fly 隨時校正 Minimal intervention required 需要的校正最少 Invisible to drilling parameters 鉆井參數(shù)不受影響,V-Pilot Advantages 優(yōu)點優(yōu)勢,V-Pilot Advantages 優(yōu)點優(yōu)勢,Bit stabilization utilized on V-Pilot - Extended gauge length for smoother well bore profile. 使用V-Pilot長保徑鉆頭井眼光滑 Can be adapted to any bit

16、choice. 可以使用任何鉆頭 WOB can be maximized without risk of ledging. 工具不受最大鉆壓的限制 Reduction in reaming and tripping time. 減少劃眼時間和起下鉆時間 Enhanced casing running. 提高下套管質(zhì)量,Areas with strong natural deviation tendencies 強烈自然傾斜地層 Highly inclined beds 大傾斜層 Massive salt formations 塊狀巖鹽地層 Hard rock, high vibration

17、areas 堅硬巖石，強烈振動地層 High temperature environments 高溫環(huán)境,Where is V-Pilot Targeted for Use? 應(yīng)用范圍,V-Pilot 9600 Operating Parameters作業(yè)參數(shù),Hole Size: 12-1/4”-22” 井眼尺寸：12-1/4”-22” Max WOB: 270 Kips 最大鉆壓：122噸 Max operating torque: 13,004 ftlbs 最大作業(yè)扭矩：27,116Nm Max differential Pressure: 720psi 最大壓差: 4.96 MPa F

18、low range: 600 gpm 1200 gpm 排量：600-1200gpm,THANK YOU,V-Pilot 垂直鉆井系統(tǒng),GeoForce Motor,Swash Plate: (yellow w/red bearings). One half is fixed and one half is attached to the shaft. When the power section turns the drive shaft through the V-Pilot the swash plate oscillates moving the pump pistons (green

19、) up & down. This is how the hydraulic power is generated to operate the tool. 旋轉(zhuǎn)擋板（黃色轉(zhuǎn)盤和紅色軸承），一半固定，一半與旋轉(zhuǎn)軸承連接，當(dāng)馬達(dá)的轉(zhuǎn)動通過傳動軸總成和V-Pilot的旋轉(zhuǎn)擋板時，帶動泵活塞上下運動(綠色)，這就是水力泵如何驅(qū)動V-Pilot.,Hydraulic Pump 水力泵,When the tool comes off vertical the activation leavers (above the pump) come in contact with the lower end of

20、 the pendulum and open a valve. The HP reservoir is directed to the pads at the bottom of the V-Pilot (looks similar to an AGS 4 pistons /pad) and force is applied to the well bore to push the tool back to vertical. 當(dāng)產(chǎn)生井斜時，激活片（水力泵之上）推擊打鐘擺的低邊并且開啟其中的一個閥門，水力直接作用于V-Pilot的墊片，井壁的反作用力推動鉆具回到垂直狀態(tài)。,Hydraulic

21、Pump 水力泵,Tool is meant to operate in sliding mode but will correct up to 5 RPM. 工具采用滑動模式進(jìn)行作業(yè)，5rpm校正 5 25 RPM pads will remain retracted and will drill or ream like a straight motor. 5-25rpm時，墊片處于收位狀態(tài)，如同一條直馬達(dá) Above 25 30 RPM centrifugal forces will pull the pendulum to one side inside the housing. On

22、e or two activation leavers will then be activated by the pendulum being off center and the hydraulics will extend one or two sets of pad pistons. 25-30rpm，鉆具離心力將產(chǎn)生偏向一邊的大鐘擺力，V-Pilot的一個或兩個墊片在大鐘擺力的作用下偏離中心，液壓將推動另外的一或兩個活塞,V-Pilot 9600 String Rotation 鉆具的旋轉(zhuǎn),Above 75 RPM was specifically for the Gen II, s

23、ingle pads and a lot of mass, they would extend at these speeds without hydraulic assistance on centrifugal force alone. The Gen III has less effect for the pistons to extend on centrifugal force only as the mass of the individual pistons are much lower. V-Pilot 第二代的轉(zhuǎn)速可高于75rpm，大質(zhì)量單個墊片可以高速離心延伸，無需水力協(xié)助。 V-Pilot 第三代的活塞質(zhì)量更小，其高速離心力較小。 The tool only functions in sliding mode If you rotary drill the tool becomes an 11” motorized drill collar. It will drill but will not auto correct