ES- II DV Collar and DV Collar Opts

Question 1

What Year Did Halliburton Develop The Diverter Valve Multi-Stage Assembly

Answer 1

Mid 1940’s

Question 2

What Are The Two Types Of ES-II DV Tools

Answer 2

1. Type H (Hydraulic) Can Either Be Opened With Casing Pressure Or An Opening Plug
2. Type P (Plug Set) This Series Can Only Be Opened With A Plug Set

Question 3

What Grade Steel Are ES-II Manufactured In

Answer 3

L-80 or P-110

Question 4

When Would We Use The ES-II Diverter Tool Scenario 1

Answer 4

1. Where The Hydrostatic Head Of The Cement Is Greater Than The Formation Pressure Resulting In A Breakdown of Low-Pressure Formations In A Certain Section Of The Well But Not The Whole Well.

Question 5

When Would We Use The ES-II Diverter Tool Scenario 2

Answer 5

When only certain portions of the wellbore require zonal isolation

Question 6

When Would We Use The ES-II Diverter Tool Scenario 3

Answer 6

In Deep, Hot Holes Where Time To Pump The Desired Quality and Quantity of Cement Is Limited and Thus Slurry Pumpability Is Best Maintained By Reducing The Total Volume To Be Placed In An Interval During Any Particular Pumping Operation

Question 7

When Would We Use The ES-II Diverter Tool Scenario 4

Answer 7

In downhole conditions that require different slurry blends to address unique challenges to each segment and achieve the intended zonal-isolation integrity

Question 8

When Would We Use The ES-II Diverter Tool Scenario 5

Answer 8

Horizontal wellbores where the bend radius of the well requires cementing.

Question 9

What Is The Max Temperature That The ES-II DV Tool Can Operate In

Answer 9

275 Degrees F

Question 10

How Many Stages Can Be Pumped Using ES-II Tools

Answer 10

Three Stages Using Two Tools

Question 11

How Would A Three Stage Pump Job Look Using Two ES-II Tools

Answer 11

With three-stage cementing applications, the lower tool can be a Type H while the upper tool will need to be a Type P. The option of using two Type P tools is also a consideration.

Question 12

What Are The Advantages Of The ES-II DV Tool #1

Answer 12

Short, single-piece mandrel design without threaded or welded segments.

Question 13

What Are The Advantages Of The ES-II DV Tool #2

Answer 13

PDC Drillable

Question 14

What Are The Advantages Of The ES-II DV Tool #3

Answer 14

Field Adjustable Opening and Closing Pressures

Question 15

What Are The Advantages Of The ES-II DV Tool #4

Answer 15

Internal Smooth Bore After Drill Out With No Exposed Sleeves to Interfere With The Operation of Workover Tools On Subsequent Trips In And Out Of The Casing String

Question 16

What Are The Advantages Of The ES-II DV Tool #5

Answer 16

The External Closing Sleeves Allows for The Cementing Ports To Be Mechanically Covered and Not Exposed To Open Formation After Drill Out

Question 17

When Would We Use The ES-II Diverter Tool Scenario 6

Answer 17

When regulatory requirements dictate cement to surface