Federal_1_8_OW_P_A_17322__Oil_and_Gas_Well_Plugging_and_Abandonment_FINAL.docx

SECTION 17322

OIL AND GAS WELL PLUGGING AND ABANDONMENT

PART 1: GENERAL

1.1 SUMMARY

A. Description of Work: Work includes furnishing labor, equipment, supplies, and materials to plug and abandon the orphaned Federal 1-8 gas well, removal and disposal of specified materials and well fluids, and surface restoration of the well site to the prescribed conditions. If necessary, alternative methods will be selected on site by the Contracting Officer as the site conditions are determined.

B. Mobilization: The movement of personnel, equipment, supplies, and incidentals to the well or job site. The time required to rig up the drilling, completion/workover rig, or plugging, shall be included as part of mobilization Section 1505 Mobilization/Demobilization.

1.2 LOCATION:

A. Work under this Contract is located in the NE¼NE¼ of Section 8, T16N, R94W, Sweetwater County, Wyoming. The work location is shown on the location maps.

1.3 DEFINITIONS:

A. Well Site Restoration: Includes work and equipment necessary to remove well equipment, structures, trash, and well fluids from the well site. Perform necessary grading, backfilling, and placing stored topsoil to match the prescribed conditions and contours.

B. Anticipated Bottom Hole Pressure: This pressure shall be determined from available information including but not limited to completion and production test, drill stem test, or mud weight gradient. Lacking better data, bottom hole pressure shall be determined with formation pressure gradient of 0.44 to 0.50 psi per foot of depth.

1.4 RELATED WORK:

A. Specification Sections:

1. General Information and Requirements Section 01009

2. Wire Fence and Gates Section 02824

1.5 REFERENCES:

A. Code of Federal Regulations (CFR):

1.6 SUBMITTALS:

1.7 HYDROGEN SULFIDE (H2S) CONTINGENCY PLAN:

A. Plugging and Abandonment Operations: When conducted in zones known to contain, or which could reasonably contain, concentrations of H2S of 100 ppm or more in the gas stream must be reviewed for compliance with Onshore Oil and Gas Order Number 6. Onshore Oil and Gas Order Number 2 refers to Onshore Oil and Gas Order Number 6 where specific hydrogen sulfide safety and monitoring equipment minimum standards are addressed.

PART 2: PLUGGING EQUIPMENT AND PRODUCTS

2.1 DRILLING MUD/MUD SPACERS:

A. Drilling Mud/Mud Spacers used for plugging operations shall be bentonite, water, and weighting agent must be maintained on location should a well control issue arise after or while drilling out obstructions in wellbore. A minimum of 300 barrels (bbl) of fresh water shall be maintained on-site. Adequate mud materials must be maintained on-site in order to achieve a minimum density of 9.0 pounds per gallon (ppg). The mud does not have to be premixed. Additives shall be environmentally safe, containing no heavy metals, and provided in sufficient quantities on the well site to contain wellbore pressure.

2.2 CEMENT:

A. Cement used for plugs shall be API Class G. Dry weight of cement shall be 94 pounds per sack (sk). Dry bulk cement shall be delivered by truck. Cement shall conform to the following:

2.3 CEMENT ADDITIVES:

A. Calcium Chloride (CaCl2) may be used to reduce wait-on-cement (WOC) time for the cement plugs. The Contract Officer will determine, based on site conditions, when CaCl2 will be added to the cement. The amount of CaCl2 added to the cement slurry will be determined at the well site based on current conditions. A minimum of 500 lb of CaCl2 should be provided on location during plugging operations.

2.4 WATER:

A. Water used for mud spacers, drilling and cementing operations shall be potable water.

2.5 PLUGGING EQUIPMENT:

A. COMPLETION/WORKOVER RIG (WOR): The rig shall be capable of operating to a depth of 10,000 ft with 2-7/8”, 6.4 lb/ft tubing. The rig shall be furnished with a crew and supervision. Provide the manufacturer’s name, size, and capacity for the rig and the following required accessory equipment:

1. Tubing tools for 2-7/8” tubing.

2. 10,000 ft of blue-banded, or higher grade, 2-7/8”, 6.4 lb/ft tubing.

3. Two cast iron cement retainers (CICR) for 5-1/2”, 17 lb/ft casing.

B. WELL CONTROL EQUIPMENT: The well control equipment shall consist of the Blowout Preventer (BOP), Related Equipment (BOPE), and Accumulator System. The blowout preventer and related equipment shall have a rated working pressure of 5,000 psi (5M). The blowout preventer shall consist of an annular, two single rams - one being a pipe ram and one being a blind ram preventer. The accumulator system shall be capable of closing the BOP and retain a minimum of 200 psi above pre-charge. The related equipment (BOPE) shall include:

1. Two full opening safety valves and subs to fit work string being used.

C. CIRCULATING EQUIPMENT: The circulating equipment shall consist of the mud pump, and mud tanks. The mud pump shall be capable of discharge volumes to 200 gallons per minute (gpm) and discharge pressures to 3000 psi.

D. CEMENTING EQUIPMENT: The cementing equipment shall be capable of either batch mixing or ‘on the fly’ mixing the cement slurry. Cementing equipment must be outfitted with a continuous reading densitometer, and appropriate density must be maintained throughout pumping operations. A mud/multi-purpose pump shall be provided that is capable of pumping the cement slurry to the plug depths as specified.

E. STORAGE TANKS - WELL FLUIDS: A sufficient number of storage tanks shall be furnished to contain all well fluids circulated from the well during the plugging operations. Each storage tank shall have a capacity of at least 400 bbl.

F. PLUG and ABANDONMENT MARKER: Shall be a ¼-inch steel plate with weep hole welded across the top of the casing. The following shall be inscribed on the plate:

1. BLM

2. Federal 1-8

3. WYW0255077

Federal 1-8 orphaned well P&A 017322-1

Federal 1-8 orphaned well P&A 017322-1

4. NENE Section 8, T16N, R94W

PART 3: EXECUTION

3.1 GENERAL:

A. Depths: Depths given are from ground level.

B. Well Work Log: A daily work log shall be maintained of the entire plugging operation and shall be available for inspection during course of the work. The log shall list depths of existing and new plugs and the number of sacks of cement used for each plug. Submit the work log, a copy of the cement company job log, copies of the cementing pump pressure and pump rate charts, and any casing or cement evaluation logs to the Contracting Officer within 30 days of completion of plugging activities. When applicable, submit third-party job log.

C. Plug Tag or Pressure Test: Curing time shall be long enough to achieve a satisfactory plug tag or pressure test, according to Onshore Oil and Gas Order No. 2, before beginning further plugging operations.

3.2 SITE PREPARATION:

A. General: The Contractor shall perform site preparation work at each well site necessary to set the rig. Surface disturbance shall be held to a minimum.

B. Access to Well Site: Site access roads in some areas may need to be improved for equipment travel. Prior to improving BLM roads, obtain written approval from the Contracting Officer.

C. Storage Tanks: A sufficient number of storage tanks shall be provided on the well site to contain well fluids. All fluids circulated from the well shall be contained and properly disposed of after removal from the well site. Oil or other contaminates shall not be discharged into the watershed.

3.3 PLUGGING PROCEDURE:

A. Well Name and Number: Federal 1-8

1. Improve access road and well pad as needed to ensure WOR and pertinent plugging equipment can safely access and use the location.

2. Test rig anchors.

3. Move-in, rig-up (MIRU) WOR. Record casing and tubing pressures as well as any volumes and details of fluids pumped daily.

4. Top kill well as needed.

5. Nipple down well head. Nipple up 5M Double Ram BOP w/ 2-7/8” pipe rams. Function test BOP. BOP should be visually inspected during RU and every morning. Always have 2 TIW valves available on the floor in full-open position for the size of tubing being used.

3. Pull out of the hole (POOH) laying down existing tubing for salvage.

4. Pick up/make up (PU/MU) 3-3/4” bit, bit sub and 5-1/2” casing scraper, run in the hole (RIH) to planned CICR depth of 8,042’.

5. Circulate bottoms up with fresh water.

6. POOH with tubing.

7. PU/MU CICR, RIH with tubing and set CICR +/-8,042’.

8. Sting out and back into CICR, establish injection rate into perforations.

9. Mix and pump 217 sk Class G cement under retainer. Sting out and spot 23 sk on top of CICR. POOH to 7,800’ and reverse circulate tubing clean. WOC 2 hours.

10. Test casing by pressuring to a minimum pump (surface) pressure of 1,000 psi. The test will be considered successful if pressure declines less than 10 percent during a 30-minute period, or as approved by the BLM onsite representative.

a. If the casing test is successful, spot a balanced 9 ppg (or kill weight equivalent) mud plug to 4,800’ and proceed to step 11.

b. If the casing test is unsuccessful, the Contract Officer will be contacted, and a plan devised.

11. POOH laying down tubing to 4,725’ and stand back remainder.

12. MIRU wireline.

13. PU and RIH with squeeze perf gun (0.50” charges), shoot circulating holes at +/-4,800’ (+/-75’ below planned CICR set depth). POOH with gun.

14. Rig down, move off (RDMO) wireline.

15. PU/MU CICR, RIH with tubing and set CICR +/- 4,725’.

16. Sting out and back into CICR, establish injection rate into perforations.

17. RU cementers and test flow lines. Mix and pump 44 sk Class G cement under retainer. Sting out and spot 15 sk on top of CICR. POOH to 4,550’ and reverse circulate tubing clean.

18. Spot a balanced 9 ppg (or kill weight equivalent) mud plug to 776’.

19. MIRU wireline.

20. PU and RIH with squeeze perf gun (0.50” charges), shoot squeeze holes at +/-776’ (+/-50’ below surface casing shoe). POOH with gun.

21. RDMO wireline.

22. Establish circulation up 5.5” x 13.375” annulus. After breaking circulation, mix and pump 550 sk surface plug, or until clean cement returns to surface.

23. RDMO BOPE and WOR.

24. Cut off well head 3 feet below ground level. Ensure cement is to surface; remediate with 1” pipe if necessary.

25. Weld in-place 1/4 inch thick steel plate. Leave weephole. The following information will be permanently inscribed on the metal plate:

a. BLM

b. Federal 1-8

c. WYW0255077

d. NENE Section 8, T16N, R94W

26. Anchors or Deadmen: After the plugging and abandonment operations have been completed, remove or cut off the anchors or deadmen at least 3 feet below ground level. Backfill and grade as indicated below.

27. A temporary steel fence post with an attached placard indicating the same information as required in 25. above, and/or from 43 CFR 3162.6, shall be placed adjacent to the well bore.

3.4 SITE RESTORATION:

A. All requirements for site restoration are located in the Reclamation Work Data Sheet.

PART 4: MEASUREMENT AND PAYMENT

4.1 METHOD OF MEASUREMENT:

A. Units: The work described in this section will not be measured for payment.

4.2 BASIS OF PAYMENT:

A. Payment: Prices and payment will be full compensation for the work described in this section. Payment will be made under:

PAY ITEM PAY UNIT

17322 (01) WELL PLUGGING AND ABANDONMENT EACH

END OF SECTION