NOV Agitator 国民油井华高

内容
Overview of AG-itator –Product purpose & function
AGT(水力振荡器)工具的工作原理和功能
NOV Solutions Case histories –drilling, CT, TTRD, intervention
使用案例: 钻井, 连续油管作业, 过套管钻进和套管内作业
ons Showcase Recognising potential applications
潜在其他的用途
Qualifying customer needs 客户评价
AG-itator
NOV Solutions
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Proven Applications
Run above steerable motors to improve toolface control and increase ROP
钻具组合中连接在导向马达之上, 来提高对工具面的控制和增加
机械钻速
NOV Solutions Run in rotary BHAs to eliminate stick slip, increase ROP and extend bit life
与转盘钻进钻具组合, 降低钻进过程中的粘滑振动来增加机械钻速和延长钻头使用寿命
ons Showcase Extend the reach in CT drilling/TTRD
可以增加连续油管/过油管钻进所能达到的深度
Intervention work-套管内作业
NOV Solutions AGT + 弹簧短节
弹簧短节
动力部分
1:2 ons Showcase 水力振荡器
螺杆
configuration
Valve & Bearing Section
阀片和轴承(耐磨套)部分
Transmission-转换部分
工作原理
The resultant change within the flow area produce a variation in pressure.
NOV Solutions 通过改变横截面来使通过的流体产生压力脉冲
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How the AG-itator works
Pressure pulses created
NOV Solutions by the AG-itator act on the
pump open area of a
shock tool AGT产生压力脉
冲, 压力脉冲作用于弹簧短
ons Showcase 节
Shock tool induces axial
vibration to the BHA弹簧短
节在压力脉冲的作用下产生轴
向与BHA的蠕动
WOB 振动
NOV Solutions
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Demo
NOV Solutions
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Bottom Hole Assembly
Bottom Hole Assembly
NOV Solutions 4 ¾” AG-itator : 案例1 (英国北海?)
Offset Well Problems(普遍问题)
Sliding with PDM/PDC virtually
impossible Capable of only
extremely short oriented intervals 螺杆+PDC 在较短的半径范围内几乎井眼轨迹
0500
1000
1500
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无法进行滑动定向钻进
Motor stalling and hang up was very common 马达受损和悬挂现象普遍存在
Result slide ROP less than 1.5m/hr 滑动钻进的机械钻速低于1.5米/小时
57/
8“ hole objectives 施工目的:
7” 套管鞋处降斜后垂直钻进
From 7" shoe, drop off to vertical at TD
7" Shoe
2000
2500
3000
3500
4000
500
10001500
20002500
30003500
4000
NOV Solutions 引入
4 ¾” AG-itator 到BHA 的目的
Drop from 42°to vertical using AG-itator assisted BHA to overcome historical oriented drilling problems
在42°处井斜降至0后垂直钻进.引入AGT 后克服了以前定向钻进所出现的系列问题
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NOV Solutions BHA 滑动钻进时的使用效果对比
Offset Well PDM / PDC Performance AG-itator PDM/PDC Performance
-Rotate -Slide
3570
3545
3520
26m
10m at 8.6m/hr
15m 83m
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3670
3645
3620
359510m at 13.3m/hr
20m 11m at 7.3m/hr
28m 10m at 3.3m/hr
14m 9m at 1.0m/hr
11m 6m
30m
1m at 0.6m/hr
1m at 1.5m/hr
1m at 0.8m/hr
2m at 0.7m/hr 6m at 0.8m/hr
NOV Solutions AG-itator assisted the BHA to overcome typical oriented drilling
problems. 成功的克服以前定向钻进时存在的问题
AGT 引入后的效果
Efficient weight transfer -Increased ROP / Cost Savings 有效的钻压传递
增加机械钻速
Reduced weight stacking -Slide ROP increased by 60% ons Showcase
减少重力堆积
滑动钻进机械钻速增加60%Minimised motor stalling -Rotary ROP increased by 25% 降低马达的磨损
旋转钻进机械钻速增加25%Improved tool face control
-Overall ROP increased by 50%
有效的控制工具面
综合机械钻速增加50%
NOV Solutions New Applications Part two
CT Testing 连续油管测试作业
CT drilling BP Alaska 在BP 的连续油管钻进
TTRD Shell, BP and Amerada Hess 过油管钻进ons Showcase
Fishing Guns BP 打捞射孔枪
Intervention Memory Logging BHP 套管内测井(井底压力)
Liner Running and Cementing 悬挂器下入, 固井
AG-itator
挪威连续油管测试作业
Prove compatibility with coiled tube
NOV Solutions 工具可以很好的与连续油管配合使用
Compare force and drag with and without
the tool
引入工具前后的摩阻对比
ons Showcase Optimise BHA placement of the tool
优化连续油管对所下入工具位置的控制
Compare WOB whilst drilling
钻进过程中钻压的对比
NOV Solutions
Load Cell
Coiled Tubing Reel
Injector Head
Casing
Ullrig Research Facility
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1,400m (4590 feet) of 2” coiled tubing 690m (2263 feet) of Horizontal 5 ½” Casing
Pump
Weight Transfer No Flow Without Tool
Injector Force v Weight Weight Transfer With Tool & flow
Injector Force v Weight Weight Transfer With Flow Without Tool
Transferred to BHA as a %Transferred to BHA as a %0
102030405060708090100
Fishing Operation
After firing perforating guns they
became stuck
NOV Solutions 射孔枪点火后被卡
Debris suspected from remedial cement
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被卡可能是由于套管壁落下的水泥屑造成
Cement had been milled leaving a sheath
NOV Solutions
Fishing Operation
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NOV Solutions Fishing Operation
Conventional Jar and Accelerator run with addition of Ag-itator.
Jarring for over an hour with no success
Overpull and pumping sequence using ons Showcase
the tool initiated
Fish pulled free to surface, normally thought to be LIH.
Liner Running
Motor and Bit -Ream the liner back to bottom
AG-itator& Shock Tool -Improve weight
transfer/overcome weight stacking of the liner
NOV Solutions
Cementation with pressure pulses to achieve
a more uniform cement bond
ons Showcase 7” x 4 1/2” Liner successfully run through Raude
formation to TD.
Initial production levels higher than expected.
Water cut is lower than majority of other wells
in the field.
NOV Solutions Hydrate Plug in Flexible Riser
ons Showcase Background:
• Formation of hydrates in sub-sea Production Riser completely stopped production • Attempts over a four month period to re-establish production were unsuccessful
• Pre job modelling confirmed friction reducers necessary due to difficult saddle back profile with inclinations of up to 165 deg .
Objectives:
NOV Solutions • Remove hydrates without having to retrieve or replace the riser
• Minimise CT tripping inside flexible riser
ons Showcase Method:
• Pump ethylene glycol to remove hydrates
• Use Andergauge AG-itator as method of friction reduction to get
CT to hydrate plug
NOV Solutions
Results:
All objectives achieved in one run
• Hydrates removed re-establishing production
• Job made possible with the AG-itator through extremely
low friction factors (down to 0.14 -0.16)
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NOV Solutions Drilling:
High T&D
Weight stacking and pipe buckling
Low ROP/ inability to drill ahead (rotary and/or slide)High Friction factors
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Horizontal wells with short radius build up sections MLT wells –CBM (herring bone pattern)
Shallow TVD with extended reach
S -wells
Vertical wells
Coil Tubing:
Helical lock up
NOV Solutions Low ROP/ inability to drill ahead
High Friction factors
Inefficient weight transfer
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Not limited to drilling
NOV Solutions Further Applications of AG-itator Running and Pulling Sand Screens
Pulling Tubulars and Liners
ons Showcase Expanding Sand Screens
Anywhere that friction needs to be reduced
AG-itator
NOV Solutions Operator Comments
“Unparalleled tool face control and unprecedented ROP in sliding mode”Shell Iran / Baker Hughes Inteq
“Significantly improved weight transfer eliminating stick slip
problem”Maxus Indonesia / Schlumberger
“Excellent sliding and steering”Shell Todd New Zealand / Sperry Sun ons Showcase “Sliding was possible where previously it was not”British Gas / Sperry Sun
“ROP increased from 2–3 ft/hr to an average of 35 ft/hr. An enormous improvement”Chevron Nigeria / Schlumberger “Sliding was much easier than anyone could possibly have expected”.Apache Corporation Australia / Pathfinder
NOV Solutions Showcase Agitator
谢谢！。