Wireline Express conveyance system improves operational efficiency in a 69° deviated offshore well in Mexico
In an offshore well in Mexico, the logging program included 6 runs. The maximum well deviation was 69° and included a 1000-meter-long tangential section. In order to avoid piped conveyed logging, which included two latches per descent, significantly longer operating time, and multiple associated risks, the operator decided to convey the logging tools with Petromac’s conveyance system – Wireline Express.
A total of 7 runs were conveyed on wireline – by gravity – and in each occasion the maximum deviation and total depth were successfully achieved due to significantly reducing the tool drag.
This job included a world first conveyance for MRIL-XL and Geochain. Tool Taxis permitted the multilevel seismic tool to be run with 4 shuttles rather than 1 shuttle with PCL resulting in additional rig time savings.
By using Wireline Express the operator obtained an exceptional logging dataset while saving 1.25MM$.
Petromac wheels orient the probe to the high side resulting in higher pretest success rate and improved permeabilities.
CHALLENGE
An operator in Mexico initially planned to log a 69° well using Pipe Conveyance (PCL). They were concerned with the rig time required with PCL and the associated risks with multi-latch operations and tripping in-hole blind.
SOLUTION
The wireline company proposed Petromac Tool Taxis on each toolstring in order to minimize drag and reach TD by gravity descent.
RESULTS
The operator was able to save 8 days of rig time, while controlling operational risks such as differential sticking. Additionally, enhanced data was acquired thanks to smooth tool motion while logging up.
