Custody transfer ledger
Hypothetical. Not a client, not a result.
// The problem
An operator, a midstream company and the joint venture partners reconcile measured volumes at custody transfer points every month, and every difference becomes a dispute.
// What we would build
Meter readings at each custody transfer point recorded on a private permissioned ledger that the operator, the midstream company and the main partners each run a node of, with the agreed volumes passed to joint venture and royalty accounting. If one party is trusted by all, a shared database is cheaper, and we will say so.
// What is in it
- Meter volumes read from the historian at each custody transfer point
- Each reading and each correction recorded on a private chain with a node per party
- Monthly allocations agreed on the record, not in a spreadsheet
- Agreed volumes sent to joint venture and royalty accounting
- An audit export for partners and auditors
// Stack
- Next.js
- Hyperledger Besu (private, permissioned)
- PostgreSQL
- Historian API
- AWS
// estimate
- Build
- ≈ US$126,000 to US$193,000, delivered within 25 weeksCAD 180,000 to 275,300
- Hosting
- ≈ US$492 a monthCAD 700 a month
- Support
- ≈ US$2,500 a monthCAD 3,565 a month
Prices in your currency are estimates from today's Bank of Canada rate. All invoicing is in CAD or USD.
Timeline by milestone
- Discovery
- 2.9 to 3.4 weeks
- Architecture
- 0.4 weeks
- Design approved
- 2.9 to 5.4 weeks
- Core features
- 1.9 to 2.9 weeks
- Full build
- 0.9 to 1.9 weeks
- Devnet
- 3.4 to 5.4 weeks
- Testing and fixes
- 0.4 weeks
- Testnet
- 2.9 to 3.4 weeks
- Launch
- 0.9 to 1.4 weeks
- Mainnet
- 0.9 to 1.4 weeks
Outside our hands, and added to the calendar
- Historian access approved by your control systems team
- 1 to 4 weeks
How it is paid
- Deposit 20%
- CAD 36,000 to 55,060
- Discovery 2.5%
- CAD 4,500.00 to 6,882.50
- Architecture 6.7%
- CAD 12,060.00 to 18,445.10
- Design approved 2.5%
- CAD 4,500.00 to 6,882.50
- Core features 7.5%
- CAD 13,500.00 to 20,647.50
- Full build 5%
- CAD 9,000 to 13,765
- Devnet 20.2%
- CAD 36,360.00 to 55,610.60
- Testing and fixes 2.5%
- CAD 4,500.00 to 6,882.50
- Testnet 13.4%
- CAD 24,120.00 to 36,890.20
- Launch 2.5%
- CAD 4,500.00 to 6,882.50
- Mainnet 7.2%
- CAD 12,960.00 to 19,821.60
- Holdback, 30 days after launch (10%)
- CAD 18,000 to 27,530