Production in 2020 improved in comparison to 2019 as a result of drilling new wells, executing the Ostracod/Magwa (OST/MAG) hydraulic fracking project, and partially commissioning Phase V compression. Crude and condensate production averaged at 43,200 BOPD, increasing by 800 BOPD in comparison to 2019. The black oil rate averaged at 39,100 BOPD for the year. The end of year average crude and condensate production rate is below the target by approximately 2,000 BOPD. The production target was not achieved due to planned and unplanned facility shutdowns (including external party disruptions), underperforming OST/MAG horizontal wells fracking and delays in completing some of the main projects due to COVID-19 related issues.
Total Khuff gas production averaged 1,669 Million Standard Cubic Feet per Day (MMSCFD), with a peak production rate of 2,097 MMSCFD in August 2020. Delivery to distribution points continued without interruption while supplying a daily average of 213 MMSCFD to Mauddud injection wells, 22 MMSCFD to Arab injection wells, and 152 MMSCFD to the gas lift system.
The sale and supply of gas was uninterrupted to all gas customers in the Kingdom of Bahrain during 2020, including the industrial sector and power and water producers. 1,585 MMSCFD of uninterrupted gas was supplied to thirty nine (39) gas customers. From a supply perspective, 80% was Khuff gas, whereas approximately 20% was residue gas. From a demand perspective, both the Electricity and Water Authority (EWA) and Aluminum Bahrain B.S.C. (Alba) consumed approximately 74% of the supplied gas.
Non-Associated Gas (NAG)
As a continuation of the NAG Long term development plan, multiple NAG strategic projects have been executed in 2020. These critical NAG projects are being executed to enhance/maintain the NAG system deliverability and to establish a reliable Khuff gas supply source to meet the Kingdom’s gas demand. This development program includes Khuff well hook-ups, NAG compression facilities, GDUs, and GTN Debottlenecking.
Gas Distribution Network (GDN)
Tatweer Petroleum supported HAYA Power and Desalination Company B.S.C. in the successful engineering, installation and commissioning of gas connection facilities and associated gas pipelines, enabling the supply of 285 MMSCFD of Khuff gas. This will assist in meeting the future energy and water requirements of the Kingdom of Bahrain.
In addition to core activities of carrying out Turnaround and Inspections (T&I), Preventative Maintenance jobs (PMs), and corrective work orders, the Field Maintenance department was involved in the commissioning of various new facilities.
Associated Gas (AG) and Oil Enhancement
To satisfy the requirement of incremental field compression to support oil production, AG Compression Phase V project was awarded in December 2019 to commission rental compressor stations RCS 9 and 10 with an incremental 105 MMSCFD of compression capacity by Q4 2020. Both RCS 9 and 10 were completed on target by 29 December 2020 to support production. Additionally, a tender for AG Compression Phase VII was issued in 2020 to install an additional 105 MMSCFD compression capacity by Q2 2022 to support incremental oil production from the Mauddud Tight Spacing Development Program.
An additional forty two (42) beam pump wells were connected to the 11 KV network, bringing the total number of phased-out beam pump rental diesel generators (converted to permanent power) to six hundred and eighty two (682) as of Q4 2020. An incremental six (6) GDUs and ninety three (93) BPUs were connected to the fiber optic backbone in Q4 2020. Nineteen (19) Gas Lift wells and three (3) Khuff wells were completed and hooked in Q4 2020. The fiber network expansion, which was initiated in the Northern region, was completed, in addition to extensive fiber network infrastructure upgrades throughout the Bahrain Field.
Several energy conservation, emissions compliance, and facility optimization projects were continued in 2020. The technical tender was completed for the GDU Vent Gas Recovery project, and commercial tendering is to follow with a target to award the project by April 2021. Bid evaluation is in progress for the Continuous Emission Monitoring System (CEMS – 6 GDUs) project and contract award is expected by March 2021. Tender preparation commenced in Q4 for the retrofit of forced re-boiler burner management system for six (6) GDUs.