HPHT Annular Casing Packer. Obex Annular Casing Packer

Transcription

1 HPHT Annular Casing Packer Obex Annular Casing Packer

2 Industry Challenge Casing packer to support second stage cement Reduce hydrostatic pressure on formation Get cement to surface Annular gas migration during primary cementing Poor cement quality Sustained casing pressure Gas pressure at surface 2015 HALLIBURTON. ALL RIGHTS RESERVED. 2

3 Solution Obex Annular Casing Packer Run on: 9-5/ lb/ft casing Set in: 13-3/8 86 lb/ft casing 10,000 psi bi-directional differential pressure rating 350,000 lb bi-directional anchoring 300 F (149 C) Gas tight 2015 HALLIBURTON. ALL RIGHTS RESERVED. 3

4 Obex Annular Casing Packer Applications and Benefits Applications Run as a standalone casing-to-casing, anti-gas-migration packer Can be drilled out at any time Run in conjunction with an ES II HD stage cementer Benefits Drill out after the second stage of cement has set Enhance wellbore integrity with a secondary barrier Help protect weak formations Set at strategic intervals to shorten fluid column Alleviate hydrostatic pressure Set immediately below ES II HD stage cementer for multiple-stage cementing 2015 HALLIBURTON. ALL RIGHTS RESERVED. 4

5 Obex Annular Casing Packer Barrier Features Redundant HPHT seals prevents fluid communication between casing and annulus Internal continuous latching mechanism locks packer in the set position, preventing the rubber elements and slips from unsetting and otherwise creating a leak path Extrusion resistant element design for life-of-the-well integrity High strength barrel slips provide bidirectional anchoring up to 350,000 lbf 2015 HALLIBURTON. ALL RIGHTS RESERVED. 5

6 Obex Annular Casing Packer Operational Features Pipe manipulation can be used to confirm packer set and as a contingent setting method Can be run in conjunction with an ES II HD stage cementer Operated with the first-stage bypass plugs Can be drilled out after the second stage of cement has set Plug operated and mechanically set via applied pressure Robust setting mechanism designed for high-density, debris-laden fluids Operating temperature of 300ºF (149ºC) 2015 HALLIBURTON. ALL RIGHTS RESERVED. 6

7 Obex Annular Casing Packer - Element Package Design Ultra high swab resistance (>32 bpm in drift ID) Patent pending element spacer improved swab resistance by 85% Dual symmetric propped element Bi-directional high pressure resistance Debris tolerant HPHT for life of well No extrusion gap Durable HNBR elements 2015 HALLIBURTON. ALL RIGHTS RESERVED. 7

8 Obex Annular Casing Packer Barrel Slips Design Field-proven, high-strength barrel slips 60+ HRC tooth hardness will anchor in any casing Locks setting load into element package Symmetric circumferential anchoring Identical slips mirror across element package 2015 HALLIBURTON. ALL RIGHTS RESERVED. 8

9 Obex Annular Casing Packer Setting Mechanism Design Robust and reliable mechanical design Displacement plug operated Full bore hydraulic area 2015 HALLIBURTON. ALL RIGHTS RESERVED. 9

10 RUN IN HOLE Obex Annular Casing Packer LAND OPENING PLUG ON CEMENTER OPENING SEAT SHIFT CEMENTER OPENING SEAT 490 PSI SHEAR OUTER RING ON PLUG/LAND ON SETTING SEAT 1500 PSI 2015 HALLIBURTON. ALL RIGHTS RESERVED. 10

11 SET PACKER 650 (INITIAL) to 2200 PSI (FULL) Obex Annular Casing Packer BURST RUPTURE DISKS TO CIRCULATE ABOVE TOOL 3000 PSI CLOSE CEMENTER 1000 PSI DRILLOUT 2015 HALLIBURTON. ALL RIGHTS RESERVED. 11

12 Obex Annular Casing Packer Flow Endurance Testing Element OD = in. (295 mm) Chamber ID = in. (304 mm) 14 ppg WBM at 130 F (54 C) Max flow rate = 32 bpm Drift ID Chamber ( ID) Velocity over elements = 66.7 ft/s Equivalent run in speed = 240 ft/s (drift ID) Maximum differential pressure across packer = 714 psi Equivalent to 27 bpm with 20 ppg WBM Pressure Transducer Ports Flow out Flow in Element Back-up Shoes High Flow Element Spacer Drift ID Chamber ( ID) Elements 2015 HALLIBURTON. ALL RIGHTS RESERVED. 12

13 Obex Annular Casing Packer Pressure Integrity Testing Test fluids: UCON oil at 350 F (177 C) 20.5 ppg WBM at 72 F (22 C) Chamber IDs: in. and in. Setting force applied: 63,500 lb (85% of minimum tool setting force) Tested per ISO V5 criteria Passed at 11,500 psi differential pressure in all tests Press Tube Jam Nut Mandrel Element Package 2015 HALLIBURTON. ALL RIGHTS RESERVED. 13

14 Pressure (PSI) Temperature ( F) Obex Annular Casing Packer Pressure Integrity Testing UCON Oil; 350 F; ID Time (minutes) ABOVE BELOW Temp 2015 HALLIBURTON. ALL RIGHTS RESERVED. 14

15 Obex Annular Casing Packer Full Function Testing Performed at Halliburton s Mike Adams test well and HTGTF in Carrollton, TX Function testing included: Run in hole/reciprocation simulating running packer to TD 1,000 ft at 3-5 ft/s 1,500 ft at ft/s 5,000 ft at 1-2 ft/s Circulation at 17 bpm for 3 hours to simulate 3,000 bbl hole conditioning and first stage cement job Set packer at 2,200 ft (670 meters) using field operating procedures 2015 HALLIBURTON. ALL RIGHTS RESERVED. 15

16 Obex Annular Casing Packer Full Function Testing Displacing Plug and Setting Packer 2015 HALLIBURTON. ALL RIGHTS RESERVED. 16

17 Obex Annular Casing Packer Full Function Gas Test Set packer retrieved to surface Unique setup allowed packer and casing to be placed in gas test facility Packer tested bi-directionally with nitrogen at 11,500 psi and 300 F Held both directions for 15 minutes with a maximum pressure drop of 0.6% Continued the hold from below for 8 hours 2015 HALLIBURTON. ALL RIGHTS RESERVED. 17

18 Pressure (PSI) Temperature ( F) Obex Annular Casing Packer Full Function Gas Test Time Above Below Mandrel Temp 2015 HALLIBURTON. ALL RIGHTS RESERVED. 18

19 Obex Annular Casing Packer Summary Challenge Support second stage cement Mitigate annular gas migration Life-of-well functionality Solution Result Gas tight, bi-directional element package High-strength anchoring with barrel slips Robust, reliable, and debris-tolerant mechanical setting mechanism Gas tight to 10,000 psi and 300ºF (149ºC) Standalone Rated to 14 bpm circulation in any fluid density Coupled with an ES II HD stage cementer 2015 HALLIBURTON. ALL RIGHTS RESERVED. 19