Greenhouse Gas Reporting Help

Oil and Gas Well Completions and Workovers with Hydraulic Fracturing

Created by Marty Huppert on Dec 21, 2017

This page provides an overview of the Subpart W reporting requirements for the oil and gas well completions and workovers with hydraulic fracturing source type.

Please see the Reporting Form Instructions on downloading the blank reporting form and uploading the completed reporting form.

You may also refer to Optional Calculation Spreadsheet Instructions to download the Subpart W calculation spreadsheet.

The well completions and workovers with hydraulic fracturing source type is applicable to onshore petroleum and natural gas production facilities [98.230(a)(2)].

Indicate if the facility has the source type via the radio buttons.

If the source type is present you must report the required elements:

If the facility has the source type, then indicate whether missing data procedures were used.

Reporting Requirements

(Note: well-specific information for well completion and workovers with hydraulic fracturing must be reported in Table AA.1.iii)

Table G.1 Well Completions with Hydraulic Fracturing must be completed for well completions with hydraulic fracturing for each sub-basin. Note that completions and workovers are reported in separate tables: Table G.1 for completions and Table G.2 for workovers. The two tables are identical except for reference to completions in G.1 and to workovers in G.2:

Sub-basin ID [98.236(g)(1)] - the pick list for this data element is populated based on the (aa)(1) Onshore Production Tab.
Well type combination

Well Type: Horizontal or vertical? (98.236(g)(2))
Is gas flared or vented? (98.236(g)(2))
Reduced emission completion (98.236(g)(2))
Oil well or gas well? (98.236(g)(2))

Total count of all completions in the calendar year for the well type combination (98.236(g)(3)))
Select the equation used to calculate emissions from gas well completions with hydraulic fracturing (Eq. W-10A or Equation W-10B) (98.236(g)(4))
Note: The total number of completions for the well type combination and the equation used must match the count of wells for the same well type combination and equation in Table AA.1.iii “Onshore petroleum and natural production: Well Characterization” of the (aa)(1) Onshore Production Tab.
When using Equation W-10A:

Are the only wells in the sub-basin wildcat or delineation wells subject to a 2-year delay in reporting? (98.236(g)(5)(i) & 98.236(g)(5)(ii))
Cumulative gas flowback time from all wells during completions from when gas is first detected until sufficient quantities are present to enable separation, Sum of T_p,i values (hours) (98.236(g)(5)(i))
Cumulative gas flowback time from all wells during completions after sufficient quantities of gas are present to enable separation, Sum of T_p,s values (hours) (98.236(g)(5)(i))

Annual gas emissions (standard cubic feet) (98.236(g)(7))
Annual total CO₂ emissions (mt CO₂) (98.236(g)(8))
Annual total CH₄ emissions (mt CH₄) (98.236(g)(9))
Annual total N₂O emissions (mt N₂O) (98.236(g)(10))

Table G.1 Well Completions with Hydraulic Fracturing

Enlarged View of Table G.1 Well Completions with Hydraulic Fracturing

Enlarged View of Table G.1 Well Completions with Hydraulic Fracturing (continued)

Table G.2 Well Workovers with Hydraulic Fracturing must be completed for well workovers with hydraulic fracturing:

Sub-Basin ID [98.236(g)(1)] - The picklist for this data element is populated based on the (aa)(1) Onshore Production tab.
Well type combination

Well Type: Horizontal or vertical? (98.236(g)(2))
Is gas flared or vented? (98.236(g)(2))
Reduced emission workover? (98.236(g)(2))
Oil well or gas well? (98.236(g)(2))

Total count of workovers in the calendar year for the well type combination [98.236(g)(3)]
Select the equation used to calculate emissions from gas well workovers with hydraulic fracturing (Eq. W-10A or Equation W-10B) (98.236(g)(4))
Note: The total number of workovers for the well type combination and the equation used must match the count of wells for the same well type combination and equation in Table AA.1.iii “Onshore petroleum and natural production: Well Characterization” of the (aa)(1) Onshore Production Tab.
When using Equation W-10A:
- Are the only wells in the sub-basin used to calculated "cumulative gas flowback time" wildcat or delineation wells subject to a 2-year delay in reporting? [98.236(g)(5)(i)], [98.236(g)(5)(ii)]
- Cumulative gas flowback time from all wells during workovers from when gas is first detected until sufficient quantities are present to enable separation, Sum of T_p,i values (hours) [98.236(g)(5)(i)]
- Cumulative gas flowback time from all wells during workovers after sufficient quantities of gas are present to enable separation, Sum of T_p,s values (hours) [98.236(g)(5)(i)]
Annual gas emissions (standard cubic feet) [98.236(g)(7)]
Annual Total CO₂ emissions (mt CO₂) [98.236(g)(8)]
Annual Total CH₄ emissions (mt CH₄) [98.236(g)(9)]
Annual Total N₂O emissions (mt N₂O) [98.236(g)(10)]

Table G.2 Well Workovers with Hydraulic Fracturing

Enlarged View of Table G.2 Well Workovers with Hydraulic Fracturing

Enlarged View of Table G.2 Well Workovers with Hydraulic Fracturing (continued)

Table G.3 Missing data procedures used for Well Completion and Workover emission calculations

Complete Table G.3, Missing data procedures used for Well Completion and Workover emission calculations, if you indicated at the top of the worksheet that missing data procedures were used to develop data elements used in calculating emissions for Completions and Workovers with Hydraulic Fracturing.These data elements include:

Sub-basin ID. [98.236(g(1)] Be sure a valid Sub-basin ID is used.
Well type combination

Well Type: Horizontal or vertical? [98.236(g)(2)]
Is gas flared or vented? [98.236(g)(2)]
Reduced emission completion or workover? [98.236(g)(2)]
Oil well or gas well? [98.236(g)(2)]

Completions or workovers?
Equation used (Equation W-10A or Equation W-10B)
The parameter for which missing data procedures were used
- Well Completions with Hydraulic Fracturing [Table G.1]
- Well Workovers with Hydraulic Fracturing [Table G.2]
Measurement Frequency
Number of quarters missing data procedures were used [98.236(bb)(1)] (required only if the measurement frequency was quarterly)
Total number of hours in the year missing data procedure was used [98.3(c)(8)], [98.236(bb)(2)] (required unless the measurement frequency was quarterly, annually, biannually, or N/A)
Procedures used for missing data [98.235(h)]

Table G.3 Missing data procedures used for Well Completion and Workover emission calculations

Enlarged View of Table G.3 Missing data procedures used for Well Completion and Workover emission calculations

Enlarged View of Table G.3 Missing data procedures used for Well Completion and Workover emission calculations (continued)

Table G.4 Delayed RY2015 Data for Well Completions and Workovers with Hydraulic Fracturing (for delays claimed in RY2015) should be completed if data reporting were delayed in 2015 due to reliance solely on wildcat or delineation well properties. Required data elements include:

Sub-basin ID
Completion or Workover
Well type [98.236](g)(2)]
Was Gas Flared? [98.236(g)(2)]
Reduced Emission Completion/Workover? [98.236(g)(2)]
Equation W-10A—Cumulative flowback time from all wells during completions/workovers from when gas is first detected until sufficient quantities are present to enable separation, Sum of Tp,i values (hours) [98.236(g)(5)(i)
Equation W-10A—Cumulative flowback time from all wells during completions/workovers after sufficient quantities are present to enable separation, Sum of Tp,s values (hours) [98.236(g)(5)(i)
Equation W-10A—Flowback rate for the measured well(s) during completions/workovers (standard cubic feet per hour) [98.236(g)(5)(ii)
Well ID number(s) [98.236(g)(5)(i) and (ii)]

Table G.4 Delayed RY2015 Data for Well Completions and Workovers with Hydraulic Fracturing (for delays claimed in RY2015)

Well-Specific Information - In addition to completing Tables G.1 – G.4, as appropriate, complete Table AA.1.iii with well-specific activity data for each completion and workover with hydraulic fracturing (Tab (aa)(1) Onshore Production in the Smart Form), as described at Onshore Production Facility Level Requirements.

Total Emissions

The total emissions roll-up at the top of the sheet reflects the sum of each gas emission reported for the source type. These summations are calculated automatically by the Smart Form and tabulated on the Introduction tab.