2PROK-DORZ-1 a Double-Packer BHA for Dual-Zone Injection through Double String (rated up to 5076 psi)




It is used for dual-zone injection through double string in production strings with nominal outside diameter of 140-178 mm.

DESCRIPTION BHA APPLICATION ALLOWS:

  • to protect the production string against the injected corrosive medium;
  • to carry out dual injection and (or) shut off each interval from the wellhead;
  • to adjust the injection volumes and pressure for each interval from the wellhead;
  • to measure the volume of the injected fluid for each formation from the wellhead.

ADVANTAGES

  • reliable isolation of production string intervals;
  • replacement of the internal tubing string without BHA extraction;
  • attachments: equalizing valve and safety assembly allow to balance pressure of the BHA and annulus when retrieving as well as enhance the safety of repair and emergency works;
  • meets all the requirements for dual injection equipment.

TESTIMONIALS

  • Testimonial from “Bashneft-Dobycha” LLC
  • Testimonial from “Allianceneftegas” LLC

ARTICLES ABOUT PRODUCT

  • Oilfield Engineering No 6 2012 “Packer technologies and equipment innovations for dual production and dual injection”

SPECIFICATIONS

Type Casing string, mm BHA outside diameter, mm Internal tubing string diameter of piping internal casing, mm Passage bore diameter, mm (not less than) BHA Connection thread as per GOST 633-80
Nominal diameter Wall thickness Inside General Top (coupling) Bottom (nipple)
2PROK-DORZ-1-118-59(40)-350-Т1002-К3-Х3 140 7-8 118 48 40.3 59 73 60
146 9-11
2PROK-DORZ-1-122-59(40)-350-Т1002-К3-Х3 146 6.5-9 122
2PROK-DORZ-1-140-59(40)-350-Т1002-К3-Х3 168 8-11 140 89 73
2PROK-DORZ-1-142-59(40)-350-Т1002-К3-Х3 168 7-9 142
2PROK-DORZ-1-145-59(40)-350-Т1002-К3-Х3 178 7-14 145
2PROK-DORZ-1-118-59(35)-350-Т1002-К3-Х3 140 7-8 118 42 35.2 73 60
146 9-11
2PROK-DORZ-1-122-59(35)-350-Т1002-К3-Х3 146 6.5-9 122
2PROK-DORZ-1-140-59(35)-350-Т1002-К3-Х3 168 8-11 140 89 73
2PROK-DORZ-1-142-59(35)-350-Т1002-К3-Х3 168 7-9 142
2PROK-DORZ-1-145-59(35)-350-Т1002-К3-Х3 178 7-14 145

1BHA top is the coupling of the equalizing valve, BHA bottom is the nipple of the axial-set packer (upon request they can be supplied with subs according to applied standard sizes of the tubing).

2Upon a special request it is supplied for T=150C˚.

3Configuration number.


Sample code for BHA of the second configuration for 100˚C temperature when ordering:

2PROK-DORZ-1-118-59(40)-350-Т100-К3-2, where:

  • 2PROK - a double-packer BHA by NPF “Paker” LLC;
  • DORZ - dual injection through double string;
  • 1 - one emergency disconnection assembly;
  • 118 - outside diameter is 118 mm;
  • 59(40) - a passage bore of the BHA general part is 59 mm, internal one is 40 mm;
  • 350 - maximum pressure differential, atm;
  • Т100 - maximum operating temperature is 100°С;
  • К3 - corrosive version K3 (carbon dioxide of more than 10% and hydrochloric acid of up to 20%);;
  • 2 - the second configuration.


Sample order code for BHA of the second configuration for 150˚C temperature — 

  • 2PROK-DORZ-1-118-59(40)-350-T150-K3-2

Regarding equipment purchase, contact

Dinar Sufiyanov
Dinar Sufiyanov
Post:  Head of sales and service development in foreign markets
Phone:  +7 (34767) 5-21-01
Cell:  +7-937-318-87-56
E-mail:  razvitie@npf-paker.ru
Skype:  ved-paker