水平井增产措施(分段压裂)

7/10/2003
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7/10/2003
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Creation of Longitudinal and Dominant Transverse Fractures 径度增长和显性横向压裂
Multiple holes 多眼 10 diam
SurgiFracSM (Surgical Fracturing外科手术一样的压裂)
外部压裂 Horizontal Well Stimulation
水平井增产措施
Outline
• What is Surgifrac? —什么是Surgifrac ？
• Challenges of Horizontal fracturing—水平压裂的挑战 • Overview of Technology - How it works—技术概述-工 作流程 • Case Histories – Proof that it works—实例-证明其作 用 • Questions—问题
High-Rate Waterfracs -- Open Hole 高速水力压裂—裸眼井
Barnett Shale Horizontal - Map View 巴尼特页岩水平线-地图
200 0 -200 -400 -600 -800 stage1 stage2 stage3 stage4 stage5 stage6 stage7 stage8 stage9 stage10 stage11 stage12 stage13 stage14 stage15 stage16 stage17 stage18 stage19 stage20
Most Common
Result for Openhole Hydraulic Fracturing—最常用裸眼井液压压 裂
Longitudinal Hydraulic Fractures
(Along Wellbore Axis) 纵向液压压裂（与井眼轴同步）
ቤተ መጻሕፍቲ ባይዱ
Transverse Hydraulic Fractures
Time 时间
Six SurgiFrac Waterfracs performed consecutively for an Openhole Chart horizontal well bore—裸眼井水平井眼六种连续外部水力压裂
Annulus Pressure, Tubing Rate, & Annulus Rate
A Annulus Pressure (psi) 3000
A Slurry Rate (bpm) C Flowback Rate (bpm) C
C 40 35
2500 30 2000
0.98 psi/ft
25 20 15 10
1500
1000
0.72 psi/ft
500 5 0 09:00 0 18:00
Typical Implementations典型实施
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All Stages
South-North (ft)
-1000 -1200 -1400 -1600 -1800 -2000 -2200 -2400
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West-East (ft)
2400
-200
5700 5900 6100 6300 6500 6700 6900
(Perpendicular to Wellbore) 横向液压压裂（与井眼垂直）
Frac BH Pressure Behavior—压裂BH压力性能
Conventional Frac Initiation Pressure Response 常规压裂初始压力反应
Wellbore Pressure 井眼压力 SurgiFrac Wellbore Pressure Response 分段压裂井眼压力反应 Pump Rate 泵级 Prop Conc.
2 holes 4 diam
2 holes 2 holes 1 hole 2 diam 1 diam
σ Hmin
High-Rate Uncemented Liner —高流量未固井的尾管 (Ported Sub - Limited Entry)
Dominant Transverse Frac 主要横向裂缝 Short, Longitudinal Fracs 短纵向裂缝
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Multi-Lateral
Multiple fracs in pre-perfed liner Multiple fracs in openhole
This is What You Want这是你想要的
Barnett Shale Horizontal - Side View 巴尼特页岩水平线- 侧视图
stage1 stage2 stage3 stage4 stage5 stage6 stage7 stage8 stage9 stage10 stage11 stage12 stage13 stage14 stage15 stage16 stage17 stage18 stage19 stage20
Idealistic Concept of Result for Longitudinal Hydraulic Fractures (Along Wellbore Axis)
纵向液压压裂结果的理想概念（井眼轴同平行）
Idealistic Concept of Result for Transverse Hydraulic Fractures (Perpendicular to Wellbore)横向液压压裂结 果的理想概念（与井眼垂直）