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HALLIBURTON TECHNOLOGY USES REVOLUTIONARY POLYMER SYSTEM TO CONTROL UNWANTED WATER PRODUCTION
DALLAS, Texas - Halliburton Company's (NYSE: HAL) Energy Services Group's new H2Zero™ technology, which uses a revolutionary polymer system to provide unprecedented capabilities for controlling unwanted water production, has reduced the amount of unwanted water produced from an oil well, by 98 percent, for Shell U.K. Exploration and Production. The treatment, with 403 feet of perforations, is the longest horizontal, subsea, water shut-off treatment completed to date. Shell U.K. Exploration and Production is operating in the U.K. sector of the North Sea on behalf of Shell and Esso.
"Since the introduction of the H2Zero technology in 1998, Halliburton has recorded a 98 percent success rate utilizing the treatments," said Edgar Ortiz, president and chief executive officer, Halliburton's Energy Services Group. "The application of this Conformance system has proven that, through better reservoir understanding, and enhanced chemistry, as well as quality planning and operations, we have the potential to achieve a 100 percent success rate."
The North Sea well, originally drilled in July 1984, was completed as a sidetrack of the original well in August 1999. Initial production rates from the sidetrack were as high as 25,000 bpd, with minimal water cut; however, three months later the water cut had risen to more than 50 percent. Subsequent well tests, over a period of nine months, confirmed that the water had risen to 65 percent, 72 percent, and finally 95 percent.
After the last well test, Halliburton personnel evaluated the well by gathering fluid splits data to identify potential cross flows and to determine the bottom hole pressures for the development and planning of potential water shutoff operations. Following the workover, the well was shut in prior to the water shutoff operations.
Evaluation confirmed that injection water had broken through in the highly permeable Zone 1. In addition, water was cross-flowing into Zones 2 and 3, below Zone 1 but above the first fault block. Since there were two further sequences of productive sands below the two fault blocks, it was decided to perform H2Zero water shutoff operations in Zones 1, 2, and 3.
The H2Zero solution treatments were pumped through two-inch coiled tubing into the three target zones. Isolation of each zone was achieved with a PES HE3™ retrievable bridge plug set below each zone prior to pumping the treatment volumes. After each treatment, a short production test was carried out to determine the effectiveness of the treatments prior to moving on to the next zone. The treatments achieved substantial shutoff across the three water producing zones with 225, 19.5, and 16 barrels of the H2Zero solution being pumped into Zones 1, 2, and 3 respectively. The total production of unwanted water was significantly reduced from 15,700 bpd to less than 300 bpd – a reduction of more than 98 percent.
Halliburton's Energy Services Group delivers real-time systems, technologies, and services to the upstream oil and gas industry. The depth and breadth of the Energy Services Group's integrated products, services, and solutions allows its customers to more efficiently, find, develop, and produce oil and gas reservoirs.
Halliburton Company, founded in 1919, is the world's largest provider of products and services to the petroleum and energy industries. The company serves its customers with a broad range of products and services through its Energy Services Group and Engineering and Construction Group business segments.
Contact
Wendy Hagan
wendy.hagan@halliburton.com
Halliburton Company
Public Relations
Americas
(p) 713.676.5619
Julie MacGregor
julie.macgregor@halliburton.com
Halliburton Company
Public Relations
UK
(p) 44.1224.777.182
Wendy Hall
wendy.hall@halliburton.com
Halliburton Company
Public Relations
(p) 713.676.5227
Employment Contact
jobs@halliburton.com
(p) 800.888.7668
ext. 8005
Supplier/Procurement Contact
Dave Ireland
dave.ireland@halliburton.com
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