API TEST CONNECTION

IES DSA SYSTEM(Dognut Sub Adapter)

FOR 4-1/2" CASING OR TUBINGAND 3-1/2", 2-7/8" and 2 3/8" TUBING

DESCRIPTION:D.S.A. SYSTEM UPGRADES THE

PRODUCTION TUBING HEAD TO SURFACE FRAC TREATMENT PRESSURE

PROPERTY OF ISOLATION EQUIPMENT SERVICES©2013 ISOLATION EQUIPENT SERVICES

FEATURES DETAILSUPGRADES EXISTING

WELLHEAD TO 10K (69MPA) OR 15K (104 MPA) WP

A sealed high pressure sub is connected to the

dognut

MULTI SEAL CONNECTIONHigh pressure seals are

pressure tested to comfirm their integrity prior to the

frac job

UNIQUE VENTING SYSTEMVent valve prefered to be connected to the annulus casing valve or vented to

the atmosphere

ANNULUS PRESSURE BACK UP

Annulus pressure provides back up support for the

high pressure sub

DOGNUT SEALS BECOME DORMANT

Dognut seal leak will not jeopardize the job

FULL BORE FOR BACK PRESSURE PLUG PASSAGE

Sub exhibits a full bore to accommodate downhole

passage

UNIVERSAL TUBING HANGER SIZES 7 1/16" 2K, 3K, 5K and 10K

UNIVERSAL FRAC HEAD CONNECTIONS

4 1/16" 10K, 15K 3 1/16" 10K, 15K

1

2

3

4

5 6

7

DOGNUT (TUBING HANGER)

TUBING HEAD

WELL HEAD

IES DSA SYSTEM(Dognut Sub Adapter)

FOR 4-1/2" CASING OR TUBINGAND 3-1/2", 2-7/8" AND 2 3/8" TUBING

PROPERTY OF ISOLATION EQUIPMENT SERVICES©2013 ISOLATION EQUIPMENT SERVICES

ITEM NO. DESCRIPTION QTY.1 3" 1502 WH 12 3" 1502 LIFTING LUG 13 4 1/16" 10K FLANGE 3" 1502 WECO 14 4 1/16" 10K MANUAL GATE VALVE 15 4 1/16" 10K X 7 1/16" 5K DSA BONNET 16 2" 1502 PLUG VALVE 17 4 1/2" LTC HI PRESSURE SUB 1

SHOWING 1X2 VENT VALVE CONNECTED TO CASING ANNULUS

DSA BLOCK

HI PRESSURE SUB

FULL BORE PASSAGE

QUAD SEALSUB BACKED UP WITH CASING ANNULUS PRESSURE

ANNULUS PRESSURE RELIEF VALVE

ANNULUS PUMPER CONNECTION

PINS

WELL CASINGFRAC PIPE

PRESSURE EQUALIZING LINEDOGNUT

(TUBNG HANGER)

7 1/16" 5K/3K TUBING HEAD ADAPTER (2K OPTIONAL)

BACK PRESSURE PLUG THREADS

PROPERTY OF ISOLATION EQUIPMENT SERVICES© 2013 ISOLATION EQUIPMENT SERVICES

IES DSA SYSTEM(Dognut Sub Adapter)

FOR 4-1/2" CASING OR TUBINGAND 3-1/2", 2-7/8" AND 2 3/8" TUBING

SHOWING 1X2 VENT VALVE VENTING TO ATMOSPHERE

DSA BLOCK

HI PRESSURE SUB

FULL BORE PASSAGE

QUAD SEAL

ANNULUS PRESSURE RELIEF VALVE

PINS

WELL CASINGFRAC PIPE

DOGNUT (TUBING HANGER)

7 1/16" 5K/3K TUBING HEAD ADAPTER (2K OPTIONAL)

BACK PRESSURE PLUG THREADS

PROPERTY OF ISOLATION EQUIPMENT SERVICES© 2013 ISOLATION EQUIPMENT SERVICES

IES DSA SYSTEM(Dognut Sub Adapter)

FOR 4-1/2" CASING OR TUBINGAND 3-1/2", 2-7/8" AND 2 3/8" TUBING