Fossil_1_OW_P_A_17322__O_G_well_P_A.docx

PART 1: GENERAL

1.1 SUMMARY

A. Description of Work: Work includes furnishing labor, equipment, supplies, and materials to improve approximately 1 mile of existing two track access road, construct approximately 0.8 miles of access road, construct a well pad, to plug and abandon the orphaned Fossil #1 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. Interested bidders should visit the site before bidding to investigate access and well conditions. It is recommended that the KFO be notified when a site visit is scheduled so members of the KFO team may attend to discuss project requirements with the interested bidder

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 SENE, Section 23, T.21 N., R.117 W., Lincoln County, Wyoming. The work location is shown on Attachment 1.

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

1.5 SUBMITTALS:

1.6 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 and 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 drilling and cementing operations shall be potable water. The water shall be tested to ensure compatibility with cement. The Contractor shall submit a copy of the compatibility test to the Project Manager. Approximately 300 barrels of water are planned to be used during plug and abandonment operations.

2.5 PLUGGING EQUIPMENT:

A. COMPLETION/WORKOVER RIG (WOR): The rig shall have the capacity to operate to a depth of at least 2500 feet. 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-inch tubing.

B. WELL CONTROL EQUIPMENT: Well control equipment must be used in the event the flow from the well increases during routine operations. Equipment must be rated to minimum of 2000 psi. Casing should be inspected to determine what type of well control equipment can be used with non-standard casing.

C. CIRCULATING EQUIPMENT: The circulating equipment shall consist of the mud pump and mud tanks. The mud pump shall be capable of discharge volumes and discharge pressures required for the subject well

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. Fossil #1

3. Lease UNKNOWN

4. SE¼NE¼ sec 23, T.21N., R.117W.

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: Contractor must improve existing two-track (approx. one mile) so that plugging equipment may access the well site. This may include grading and culvert installation at washes. Contractor must construct two-track access (approx. 0.8 mile) from the end of the existing two-track to the well site. New two-track must be constructed to allow necessary plugging equipment to access the well. 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.

D. Access road design, improvement, and construction shall be done in accordance with BLM Handbook H-9115-1: Primitive Road Design.

E. In order for all necessary equipment to access the well pad, improvement and construction may be required including, but not limited to, culvert installation, blading, erosion control, etc. Interested bidders should visit the site to determine what improvements and construction will be necessary. If scheduling allows, the Kemmerer Field Office recommends that members of our staff be invited to attend any on-sites in the initiation or planning phases of the project. Care should be taken to minimize impact to the environment.

F. The portion of the access road that is currently a two-track shall be returned to its current condition through appropriate reclamation. Reclamation must be done to the satisfaction of the BLM Project Manager.

G. The portion of the access road that will be constructed for plugging operations must be fully reclaimed back to its original condition. Barriers or signs may need to be placed to inform public of in-process reclamation. Reclamation must be done to the satisfaction of the BLM Project Manager.

3.3 PLUGGING PROCEDURE:

A. Well Name and Number: Fossil #1

NOTE: Procedure is subject to change based on situations that may arise during plugging operations. BLM Project Manager will be onsite during operations should a procedure change need to be approved. Casing holes at surface may be indicative of parted casing or additional casing holes downhole at an unknown depth. Procedure will rely heavily on results from caliper log and CBL/VDL.

1. Prepare well pad area as needed, not to exceed a total area of 250’ x 250’ around the well.

2. Remove and properly dispose of debris around exposed casing.

3. Dig and line 10’ x 10’ x 8’ pit. Pit should be used in case of emergency only. Flowback should be directed to open-top tank unless otherwise approved by BLM Project Manager.

4. Test rig anchors.

5. Install and test well control equipment.

6. RIH with 4-3/4’’ bit and scraper to 750’. Carefully monitor returns and fluid level throughout.

7. POOH and monitor fluid level. Top off with fresh water if necessary and monitor fluid level while rigging up logging equipment.

8. Run caliper log and CBL/VDL. Determine if cased or OH completion and depth of casing shoes, if possible. Adjust cement volumes and procedure if necessary, based on log interpretation. First plug should be squeezed if cased hole completion and balanced if openhole completion.

9. RIH with work string and tag bottom +/- 750’

10. Pull up off bottom and circulate bottoms up with fresh water.

11. Mix and pump approx. 50 sacks of cement for plug from 750’ to 400’ using Class G neat at 15.8 ppg. NOTE: cement volume subject to change depending on results of caliper log, at discretion of BLM project manager.

12. POOH above calculated TOC, reverse circulate work string.

13. WOC at least 4-8 hours depending on CaCl2 use and associated cement thickening time to ensure the cement is properly set before the next plug is pumped. After WOC, tag plug with work string. If TOC is below planned depth, consult BLM Project Manager.

14. POOH with work string, RIH with perforating equipment. Perforate production casing at 390’ with four holes at 90-degree phasing.

15. POOH with perforating equipment, RIH with packer. Set packer at +/- 340’ and establish an injection rate (do not exceed 100 psi pump pressure).

16. POOH with packer, RIH with CICR. Set CICR at +/- 340’.

17. Mix and pump approximately 36 sacks of cement to squeeze casing annulus. Sting out to leave 50 ft of cement on top of CICR.

18. POOH above calculated TOC, reverse circulate work string.

19. WOC at least 4-8 hours depending on CaCl2 used and associated cement thickening time to ensure the cement is properly set before the surface plug is pumped. After WOC, tag plug with work string. If TOC is below planned depth, consult BLM Project Manager.

20. POOH with work string, RIH with perforating equipment. Perforate casing as deep as possible below surface casing shoe, if identified during log interpretation. Depth of perforations to be approved by BLM Project Manager.

21. POOH with perforating equipment, RIH with packer. Set packer at +/- 50’ above perforations and establish an injection rate (do not exceed 100 psi pump pressure).

22. Mix and pump cement volume sufficient to fill annuli and production casing to surface.

23. Once good cement to surface through annuli, release packer and pump cement to fill production casing to surface.

24. Cut off casing 3’ below ground level and top off all annuli as needed.

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. Fossil #1

c. Lease UNKNOWN

d. SE¼NE¼ sec 23, T.21N., R.117W.

3.4 SITE RESTORATION:

A. The final reclamation for the location and access road will be approximately 2.5 acres in total and will need to be conducted as follows:

1. Well bore will need to be cut off and capped approximately three feet below the final re-contoured surface elevation. The plugging location should not require recontouring, but may require ripping if hand broadcast seeding (application rate should be minimum 1.5 times that of drill seeding as listed in seed application rate in table below) is to be used in the even drill seeding is not possible.

2. Level and re-contour all disturbed areas and reseed all disturbed areas, including wash banks with the seed mix listed below.

3. All culverts and road base, used to access the well bore, will need to be removed and wash banks stabilized.

4. Vegetation success as well as weeds will need to be monitored at the 1, 3 and 5 year periods to ensure no colonization of weeds and that germination and revegetation is effective.

5. Weeds will be treated on an as needed basis by chemical or mechanical means.

6. Well site and access road must be reclaimed to the satisfaction of the BLM Project Manager.

Contractor-Furnished Seed: The seed will consist of the following seed mixture:

Fossil #1 Plugging-recommended seed mix

*Can Substitute any above with these two or also include in mix*

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 DESCRIPTION PAY UNIT

17322 (01) WELL PLUGGING AND ABANDONMENT EACH

END OF SECTION

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

Fossil #1 orphaned well P&A 01009-2