American Oil and Gas Reporter - August 2020 - 43

pages 38-43_Layout 1 8/11/2020 4:23 PM Page 43

SpecialReport: Fracturing Technology
on flow rate, Rockcliff can adjust rates as needed, optimizing
usage and costs (Figure 2).
Preventing Wireline Problems
Wireline work generates a torrent of valuable trace datasets,
including casing collar locator, line speed, line tension, measured
depth, elapsed time, current and voltage. However, if the completions staff members wanted to assess whether or not wireline
work was up to standard operating procedure or understand
why something went wrong, they had to approach the wireline
logger after the job was done and manually download the data.
Then they would perform a look-back analysis in a spreadsheet
back in the office. In the meantime, the crew has moved on to
another couple of stages, making the problem of finding and resolving any wireline issues a moving target.
Rockcliff is leveraging real-time analytics, giving staff timely
access to wireline traces and the tools to leverage this data to
verify plug placement and avoid costly mistakes such as
presetting plugs or pumping off guns. Equipped with the wireline
traces app, the company's engineers can answer important questions rapidly, including:
·
Are perforation and plug placement consistent with
planned locations for each stage?

·
Are current operations following the planned procedure?
·
Are operations within the set parameter guidelines for
items such as speed and line tension?
In addition to real-time wireline trace data analysis, the
analytics can be used to quickly troubleshoot problems and pinpoint exactly what has gone wrong. For example, Rockcliff's
wireline crew recently encountered a situation where it started
pulling heavy during a perforating run before ultimately losing
the gun string in the hole. Utilizing the data stream, the
company's operations team was able to visually identify the
exact depth and time where line tension, and subsequently the
gun string, were suddenly lost. This type of look-back analysis
provides valuable insight into diagnosing nonproductive time
events, as well as providing a quick comparison with similar
events encountered on other wireline runs.
From treatment design and monitoring pad progress to frac
chemical optimization and wireline data analysis, Rockcliff is
accelerating key workflows as well as optimizing operational
and cost efficiencies. Supported by real-time data mining technology
and completions analytics, the company is navigating the daily
complexities of its Haynesville operations while creating new
opportunities to increase operational and cost efficiencies, collaborate, and respond with actionable, data-driven insights. r

MINIMIZE EXCESS WATER PRODUCTION
Subsurface analysis helps reduce high water cuts
ResPack H2O evaluation identifies basin
faults and associated fractures linked to
increased water production using CGG's
FaultFractureSpark technology and 3D
seismic, helping to reduce environmental
impact and improve ROI by reducing
transportation and disposal of excess
produced water.

CGG Geoscience - Innovative solutions
for complex E&P challenges
Fault analysis from CGG's Avalon 3D multi-client survey, Delaware Basin,
reveals inter-formational faults, a recognized risk for increased water cuts.

cgg.com/respack
http://www.cgg.com/respack
American Oil and Gas Reporter - August 2020

Table of Contents for the Digital Edition of American Oil and Gas Reporter - August 2020
