Baku, Azerbaijan, Jan.17
By Leman Zeynalova – Trend:
The high-impact workover of well Z-21 started at Azerbaijan’s Zardab oil field Jan.16, said a message from Canada’s Zenith Energy company, which is the operator of Azerbaijan’s largest onshore block of oil fields Muradkhanli-Jafarli-Zardab.
Reportedly, the workover began following the mobilization and rigging up of a coiled tubing unit (CTU) and the arrival of ancillary milling equipment.
The CTU will be run to total depth, 3,982 meters, bypassing the previous tag depth of 2,062 meters to which an initial coiled tubing intervention had been run on August 4, 2017, said the company.
As announced by Zenith Energy on December 19, 2017, the average wellhead pressure recorded since the initial coiled tubing intervention undertaken in August 2017 has progressively increased to significant levels.
As for well-28, the company is awaiting imminent delivery of resin compounds to successfully seal the wellhead after, as announced on December 19, 2017, a leak had been observed during a pressure test from the wellhead in the 9 5/8 inches casing seal assembly.
This follows the commissioning of a detailed engineering study aimed at resolving the problem from an internationally established company, specialized in oilfield leak-sealing technology, based in the United Kingdom, said Zenith Energy.
Once the sealing of the wellhead is achieved, the company's operational team intends to run a CTU to total depth, 3,944 meters, from the top of the slotted liner and place the well on production.
"We are at a very exciting juncture in the company's operations in the Zardab field, especially as we are confident regarding the success of these operations. The next couple of weeks will be instrumental in achieving our oil production objectives," said Mike Palmer, Chief Operating Officer of Zenith Aran, the company's Azerbaijan-based fully owned subsidiary.
Azerbaijan’s state oil company SOCAR and Zenith Aran Oil Company signed a Rehabilitation, Exploration, Development and Production Sharing Agreement (REDPSA) in March 2016 for a block that includes the Muradkhanli, Jafarli and Zardab oilfields. These fields cover an area of 642.2 square kilometers. Production under the agreement began in August of 2016.
Zenith holds a 80-percent participating interest in the three fields within the contract area, while SOCAR retains the remaining 20 percent. The duration of the agreement is 25 years, with a potential extension of five additional years.
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