GeoGlobal Resources Suspends Fishing Operations on KG#17 Well
GeoGlobal Resources reports that Gujarat State Petroleum Corporation, the operator of the KG#17 well in the KG Block, has suspended fishing operations in the KG#17 well intended to retrieve stuck tubing and equipment from the hole and will conduct only one of the remaining tests previously planned in the well.
The KG#17 well commenced drilling from the KG#8 well platform on August 23, 2005. The well was drilled directionally to a location 1.81 kilometers to the northeast of the KG#8 discovery, intended to attempt to delineate the extent of the reservoir section tested in the KG#8 well and to attempt to seek to prove additional reserves below the KG#8 drilled depth of 5,061 meters total vertical depth ("TVD"). At the end of October, an intermediate string of 9 5/8-inch casing was set and cemented to approximately 4,000 meters. An 8 1/2-inch hole was drilled by GSPC from 4,000 meters to a total measured depth ("MD") of 5,601 meters (5,223 meters TVD), which is approximately 140 meters vertically deeper than the KG#8 was drilled. A complete suite of modern logs was run and the well was cased with a 7-inch liner to total depth.
Testing of the KG#17 well commenced on March 16, 2006 and, at this time, the outcome of the testing is considered to be incomplete.
The first objective was perforated from 5,502 to 5,516 meters MD and the second objective was perforated from 5,410 to 5,436 meters MD. Both of these tests flowed non-commercial quantities of gas as the formations were tight and as such the tests were suspended.
Testing of the third objective commenced on April 6. Based upon three independent log analyses, 70 meters were perforated using tubing conveyed 2-7/8 inch guns from 5,295 to 5,365 meters MD which resulted in a gas flow at surface of 0.20 MMSCFD with 300 psi flowing tubing head pressure. The reservoir pressure measured of 12,000 psi and the reservoir temperature of 400 degree Fahrenheit. These measurements are similar to the KG#8 well measurements at this depth.
Anticipating formation damage and insufficient depth of penetration, the operator decided to re-perforate the interval on April 20 using larger wire line conveyed 4-1/2 inch guns covering 44 meters over the interval 5,289 to 5,355 meters MD. This resulted in a gas flow at surface of 0.28 MMSCFD with 550 psi flowing tubing head pressure. Subsequently, an injectivity test was conducted to acquire data for future hydro-frac design. These results are to be further analyzed over the coming months, to assess the possible methods that may be available to stimulate this zone to increase productivity.
Upon the suspension of testing on the third objective, two of the three down-hole gauges along with the tubing remained stuck in the hole from 4,500 to 5,187 meters MD. Fishing operations have been ongoing to remove this equipment from the well since May 4, 2006. While these fishing operations were being conducted, the drilling rig underwent maintenance which included the replacement of the top drive, and the conversion of various tanks and other equipment to allow the availability to use brine and oil-based mud versus water-based mud in future drilling and testing.
On May 26, 2006, the operator elected to suspend these fishing operations as it is unable to estimate a definitive time required to complete the removal of the equipment that is stuck in the well. It is the operator's intention to place a sand plug and cement plug above the fish top for future re-entry.
GSPC intends at this time to conduct only one of the remaining tests previously planned for the KG#17 well. Based upon independent log analyses, the operator is going to go up-hole into the 9-5/8 inch casing and perforate the approximate interval 3,802 to 3,830 meters MD. It is presently expected that this test will be conducted the week of May 29.
Upon completion of the final test, it is the intention of GSPC to suspend the KG#17 well and commence the drilling of a third well to be drilled from the KG#8 well platform using the same jackup which is expected to commence in approximately one month.
It is believed that suspending KG#17 well operations at this time will allow the operator to re-enter the well at a later date and with the proper equipment, whipstock a 6 inch drill hole down to approximately 5,400 meters MD. It is believed that this procedure should allow the operator to test stimulating methods to increase the productivity of the third objective in the KG#17 well and to enable tests of objectives 4 and 5.
The operator had intended to perforate objectives 4 and 5 of the KG#17 well, however, the equipment becoming stuck in the hole and being unable to be removed prevented these tests from occurring. This planned testing was based upon independent log analyses to perforate 36 meters over the objective 4 interval of 5,203 to 5,268 meters MD and 32.5 meters over the objective 5 interval of 5,092 to 5,168 meters MD (4,720 to 4,796 meters TVD).
Mr. Jean P. Roy, President and CEO of GeoGlobal stated "Obviously, we would have liked to be able to test both objectives 4 and 5, as our current geological model appears to correlate objective 5 of the KG#17 well to our second test in the KG#8 well. We look forward to re-entering the KG#17 well at a future date to attempt confirmation of additional reserves in this structurally higher stratigraphic unit."
GeoGlobal further announced that GSPC has contracted with Coastal Marine Construction & Engineering Limited to commence a coring program for an additional 10 drilling sites to be located on the KG Block. The first of these cores is to locate the position for the Atwood Beacon jack-up drilling rig which is expected to arrive on KG well location by September of 2006. GSPC has contracted with Atwood Oceanics Inc., for a jackup for a 25 month contract.
GeoGlobal Resources Inc., headquartered in Calgary, Alberta,
Canada, is a US publicly traded oil and gas company, which
through its subsidiaries, is engaged primarily in the pursuit
of petroleum and natural gas through exploration and development
in India. Since inception, the Company's efforts have been
devoted to the pursuit of Production Sharing Contracts with
the Government of India. Currently, the Company is focused
on the development of high potential exploration targets
in the Krishna Godavari, Cambay and the Deccan Syneclise
- Oilex Progressing Work Plan to Unlock Gas Resources in India's Cambay Block (Jun 27)
- Oilex Commences Gas Production from Bhandut Field in Gujarat, India (Apr 08)
- GeoGlobal Updates ANK 41-S Drilling In India (Dec 22)
Company: GeoGlobal Resources more info
- Noble Drills Ahead at Levantine Basin (Mar 30)
- GeoGlobal In Talks for Sara, Myra Drilling Contract (Apr 04)
- GeoGlobal Moves Ahead Offshore Israel (Mar 11)