1. Cost Effective Offset Well Frac-hit Protection Solution
5th ALRDC Seminar for New Artificial Lift Technology
August 2, 2017
Presenter:
Rob Hari, VP Product Development

2. Agenda Horizontal well trends Overview frac-hit HEAL Slickline System
Artificial lift transition

3. How a well is drilled impacts slug flow Terrain based slugging
Toe-up
Large gas bubble forms at toe
Gas bubble eventually becomes unstable and releases in violent manner
Large, extended gas flow periods
Wellbore Undulations
Liquid traps compound slugging
Liquid traps do not create material pressure drops, rather they exacerbate slugging
As wells get longer, impact more pronounced

4. Horizontal Well Trends (Longer Wells)

5. Horizontal Well Trends
Higher Proppant Intensity
More Stages per Frac
Source: Rystad, June 2017

6. Horizontal Well Trends
Tighter spacing
No longer drilling for land retention, now pad drilling, multi-zone, infill drilling, parent-child pressure issues, and re-fracking
Source: Encana Corporation Permian
Update, Slide 9, June 20, 2017,
Source: Rystad, June 2017

7. Horizontal Well Trends (Overall)
Taken together, longer wells, more intense fracs and downspacing will exacerbate slugging tendencies and frac hit issues
Source: Rystad, June 2017

8. HEAL Slickline System: Offset Well Frac Hit Protection
Infill drilling and downspacing causing more frac hits
Expensive problem based on avoidance or remediation
Some operators remove all downhole completions, including artificial lift systems to install isolation packers
Is there a method to set a deep well barrier without a tubing move?
Reference:
Jacobs, Trent. April Oil And Gas Producers Find Frac Hits in Shale Wells a Major Challenge, Journal of Petroleum Technology, (accessed July 26, 2017)

9. Conventional Rod Pump Conventional rod pump installed in the well.
POOH with pump and rods.

10. Conventional Rod Pump, continued
POOH with tubing and anchor.
Install deep bridge plug for frac protection.
Fracture nearby wells.

11. Conventional Rod Pump, continued
Re-install production tubing and anchor.
Re-install pump and rods.

12. HEAL Slickline Rod System
HEAL Slickline System installed in the well with pump and rods.
POOH with pump and rods.
Wireline POOH HEAL Separator Mandrel, and install plug into separator for frac hit protection.
Fracture nearby wells.
Wireline POOH plug, re-install HEAL Separator Mandrel.
Re-install pump and rods.

13. HEAL ESP System HEAL ESP System installed in the well.
POOH HEAL ESP System and stinger of HEAL Safe Disconnect tool.

14. HEAL ESP System, continued
Install bridge plug above remaining HEAL System for frac hit protection.
Fracture nearby wells.
POOH with bridge plug.
Re-install HEAL ESP System and stinger of HEAL Safe Disconnect tool.

15. HEAL Slickline System
Incorporates a retrievable mandrel that when installed provides the proprietary vortex separation
Mandrel can be removed through slickline operations and replaced with other optional mandrels
Isolation mandrel provides frac hit protection up to 5,000 psi (9,000 psi when fluid filled to 9,000’)
Flow through configuration bypass the separator during flowback
Casing
Slickline Separator
OD (in - mm)
Weight (lb/ft - kg/m)
Maximum OD (in - mm)
Profile
Sizes
Yield Strength (lbs - daN)
Burst Rating (psi - MPa)
Collapse Rating (psi - MPa)
Temp. Rating (°F - °C)
Model
4.5" mm
14.14 – 22.47
3.5
88.9
Upper
1.87” XN
83,160
36,960
12,214
84.2
12,435
85.7
374
190
 4500SL
Lower
1.62” XN
5.5" mm
14.0 – 35.3
4.0
101.6
57,348
25,520
6,160
42.4
6,470
44.6
 5500SL

16. HEAL Slickline System: Offset Well Frac Hit Protection
Rod Pump
Frac Hit Protection
Well is on production with rod pump and HEAL Slickline System
Slickline HEAL Separator Mandrel in place
Casing is open for separated gas
HEAL System protects pump from gas and solids, as well as maximizes production drawdown
When an offset well is fractured there is a risk of a frac-hit with the wellbore. Consequences can include severe artificial lift system damage, productivity loss due to wellbore filling with frac sand, and a well control event with excessive pressures at surface
Pull pump and rods from well
Slickline unit pulls HEAL Separator Mandrel and installs a standard X profile Blanking Plug/Prong in Slickline Separator
With a deep barrier in the well, the frac hit risks and consequences are mitigated
Post offset well frac, the procedure is reversed and well is placed back on production
Formation Fluids (Oil, Water, Gas)
Separated Gas
Insert Pump
Oil / Water
Separated Solids
HEAL Slickline Separator c/w
Separator Mandrel
HEAL Slickline Separator c/w
Blanking Plug/Prong
(horizontal wellbore is isolated from tubing above separator)
SRS
SRS
HEAL Seal
HEAL Seal

17. HEAL Slickline System: NF to Plunger Lift to RP
Natural Flow
Plunger Lift
Rod Pump
If required, can transition to rod pump without pulling tubing
Retrieve bumper spring, HEAL Separator Mandrel and standing valve
Re-install HEAL Separator Mandrel
RIH with insert pump and rods into upper nipple profile
Casing is open for separated gas
HEAL System protects pump from gas and solids, as well as maximizes production drawdown.
HEAL Slickline Separator Flow Through configuration installed (HEAL Slickline Separator is bypassed)
Extends natural flow period as SRS lifts fluids around bend and delays the onset of liquid loading
Casing is closed
Reconfigure to plunger lift configuration (install bumper spring, HEAL Separator Mandrel and standing valve)
Plunger Lift similar to conventional
Bumper spring landed shallower to improve efficiency; enables more cycles per day allows for lower GLR
Casing is closed (unless gas assist required)
SRS discharges to annulus at HEAL Slickline Separator and maintains continuous flow; liquid builds up in annulus, not in production tubing
Formation Fluids (Oil, Water, Gas)
Separated Gas
Oil / Water
Insert Pump
Separated Solids
Plunger Bumper Spring
HEAL Slickline Separator c/w
Flow Through Configuration
HEAL Slickline Separator c/w Separator Mandrel
HEAL Slickline Separator c/w
Separator Mandrel
Standing Valve
SRS
SRS
SRS
HEAL Seal
HEAL Seal
HEAL Seal

18. HEAL Slickline System: Gas Lift and Transition to RP
Natural Flow
Gas Lift
Rod Pump
HEAL Slickline Separator Flow Through configuration installed (HEAL Slickline Separator is bypassed)
Extends natural flow period as SRS lifts fluids around bend and delays the onset of liquid loading
Casing is closed
Transition to gas lifting without pulling tubing
Gas lift same as conventional; injecting gas down production annulus
HEAL System SRS increases production drawdown over conventional gas lifting as fluids are efficiently lifted around bend section and slug flow is mitigated
If required, can transition to rod pump without pulling tubing
Install HEAL Separator Mandrel
RIH with insert pump and rods into upper nipple profile
Casing is open for separated gas
HEAL System protects pump from gas and solids, as well as maximizes production drawdown.
Formation Fluids (Oil, Water, Gas)
Separated Gas
Insert Pump
Oil / Water
Separated Solids
HEAL Slickline Separator c/w
Flow Through Configuration
HEAL Slickline Separator c/w Flow Through Configuration
HEAL Slickline Separator c/w
Separator Mandrel
SRS
HEAL Seal
SRS
SRS
HEAL Seal
HEAL Seal

19. Summary HEAL Slickline System is an economic frac-hit solution.
Mitigating Slug flow from the horizontal adds value
Solids control
Efficiency as separators and pumps like smooth flow
Drawdown reliably maximized
HEAL Slickline System offers additional value of reduced CAPEX and OPEX:
Inter-wellbore communication or frac-hit risk mitigation
Extension of natural flow period
Simpler and lower cost transition to artificial lift
Simpler and lower cost transitions between artificial lift systems

20. Questions and Discussion
ROB HARI