# SURVEY REPORT

**Report Name:** Demo Report  
**Date:** November 7, 2021  
**Contractor:** Aerial Production Services

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## OVERVIEW

Aerial Production Services performed an Aerial Gas Leak Survey of Compressor Station and 3 Well Site Locations Outlined in the Report. The Gas Leak Survey identified 9 Total Methane Leaks. See Report Below for additional Details.

|  |  |  |  |  |
| --- | --- | --- | --- | --- |
| Name | Anomaly Type | Severity(Low) | Severity(Medium) | Severity(High) |
| Compressor Station | Leak | 1 | 4 | 0 |
|  | Leak | 1 | 0 | 0 |
|  | None | 0 | 0 | 0 |
|  | Leak | 3 | 0 | 0 |

## Methodology

An Aerial Flight is conducted to find locate leak areas. Larger leaks are captured with the OGI system from the UAV. Smaller leaks that the TDLAS picks up on during the flight and a good OGI video cannot be obtained are captured during the Ground Scan.

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## Compressor Station Overview

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### Station Leak 1

| Time | Date | Location/GPS | Peak Reading(ppm.m) | Anomaly Type | Severity |
| --- | --- | --- | --- | --- | --- |
| 11:27AM | 11/07/2021 |  | 5432 | Leak | Medium |

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### Station Leak 5

| Time | Date | Location/GPS | Peak Reading(ppm.m) | Anomaly Type | Severity |
| --- | --- | --- | --- | --- | --- |
| 11:42AM | 11/07/2021 |  | 40 | Leak | Low |

No OGI Picture as Ground Scan Needs to be Completed

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## Crew Site Observations

**Asset Name:** Compressor Station  
**Beginning Time:** 17:27:15 UTC  
**Surveyor Name:** Drew Talley  
**Instruments Used:** ICI Sensor Combo (OGI, RGB, TDLAS)  
**Instrument Make:** ICI  
**Instrument Model:** OGI Inspector Plus  
**Location:**  
**Ambient Temperature:** 53  
**Windspeed:** 3 nnw.  
**Deviation from monitoring plan?** No Deviation  
**End Time:** 18:27:22 UTC  
**Leak(s) Detected:** 5  
**Component(s) Location:** See Report  
**Leak(s) Comment:** See Report Leak Observations  
**Difficult to monitor:** None, Outside Inspection Only  
**Unsafe to monitor:** None  
**Repair Due Date:** TBD

**Leak 1:** Condensate Tank. Consistent readings. Averaging approximately 3,000 ppm.m.  
**Leak 2:** Separator. Consistent readings. Averaging 1,500 ppm.m  
**Leak 3:** Unknown Equipment Type. Consistent readings. Averaging 2,300 ppm.m.  
**Leak 4:** Exhaust Readings. Higher Methane readings within the area of the Compressor Exhaust. Saturating the area.  
**Leak 5:** Unknown Equipment Type. Inconsistent readings. Very low readings. Sporadic.

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## Compressor Station Crew Flight Readings

**Notes:** Flight path covered all visible exterior equipment. The readings above are shown from the location of the UAV at time of recording (every .80 Seconds) and are not indicative of the location of the leak. The UAV with sensor stands off from the equipment on average of 15-20 meters. See Leak information for data that corresponds to each leak.

---

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### Leak 1

Methane Sensor Data Reading 2332 ppm.m

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## Crew Site Observations

**Asset Name:**  
**Beginning Time:** 18:59:15 UTC 11/6/2021  
**Surveyor Name:** Drew Talley  
**Instruments Used:** ICI Sensor Combo (OGI, RGB, TDLAS)  
**Instrument Make:** ICI  
**Instrument Model:** OGI Inspector Plus  
**Location:**  
**Ambient Temperature:** 69  
**Windspeed:** 7 wsw.  
**Deviation from monitoring plan?** No Deviation  
**Leak(s) Detected:** 1  
**Component(s) Location:** See Report  
**Leak(s) Comment:** See Report Leak Observations  
**Difficult to monitor:** None, Outside Inspection Only  
**Unsafe to monitor:** None  
**Repair Due Date:** TBD  
**Resurvey Date:** TBD  
**Requested Repair?** No

**Leak 1:** Pipe Thread. Consistent readings. Averaging approximately 500 ppm.m.

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## Crew Flight Readings

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## Well Site Overview

### Leak 1

| Time | Date | Location/GPS | Peak Reading(ppm.m) | Anomaly Type | Severity |
| --- | --- | --- | --- | --- | --- |
| 1:55PM | 11/08/2021 |  | 183 | Leak | Low |

---

### Leak 2

| Time | Date | Location/GPS | Peak Reading(ppm.m) | Anomaly Type | Severity |
| --- | --- | --- | --- | --- | --- |
| 2:06PM | 11/08/2021 |  | 186 | Leak | Low |

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## Crew Site Observations

**Asset Name:**  
**Beginning Time:** 19:51:23 UTC 11/8/2021  
**Surveyor Name:** Drew Talley  
**Instruments Used:** ICI Sensor Combo (OGI, RGB, TDLAS)  
**Instrument Make:** ICI  
**Instrument Model:** OGI Inspector Plus  
**Location:**  
**Ambient Temperature:** 69  
**Windspeed:** 7 wsw.  
**Deviation from monitoring plan?** No Deviation  
**End Time:** 20:10:18 UTC 11/8/2021  
**Leak(s) Detected:** 3  
**Component(s) Location:** See Report  
**Leak(s) Comment:** See Report Leak Observations  
**Difficult to monitor:** None, Outside Inspection Only  
**Unsafe to monitor:** None  
**Repair Due Date:** TBD

**Leak 2:** WellHead Thread. Intermittent Leak. Small Average below 50 ppm.m  
**Leak 3:** Unknown Equipment Leak. Continuous Leak. Average 35 ppm.m

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## Crew Flight Readings