A guide to better oil and gas shale production
It’s essential to be able to measure the amount of gas, oil and water that is produce on any wellbore project and this can only be achieved through innovative technology. This inexpensive technology provides confirmation that a wellbore is open to flow, identifies and quantifies stage flow contribution of each phase, and provides measurement of drainage area connectivity — simply by adding small amounts of unique chemical tracers to each stage’s stimulation fluid.
To see any type of correlation between zonal productivity and the wellbore area, independent stage production can be made useful. Using this knowledge, future well development plans can be adjusted with confidence to ensure that any changes made will result in enhanced ultimate hydrocarbon recovery.
To ensure the area that is being drilled for the well is viable, improved surveillance technology has been introduced. These include seismic, micro-seismic, core, and multiple specialist log data sets. Historically, it has been difficult to place faith in surveillance data to vary future drilling or stimulation activities. At best, there was no confirmation that recovery would improve if the data was used to change the program design. Or worse still, one data set was inconsistent with another, leaving the operator unsure which to believe. Tracerco technology offers a method to prove the accuracy of these measurements, providing operators with confidence when planning future well and field development.
Using gamma ray (GR) technologies throughout a wellbore project, the colour red will signify that the drill is below the targeted area and the blue will signal that the drill is hitting the middle section. These GR observations support geological expectations.
Producing cumulative gas will be inevitable when wellbore drilling begins and will be shown when the colour changes to red — when water is present, the colour will turn blue. When organisations drill outside of zone low (toe stages), it commonly results in reduced gas production and increased water production. Drilling out of zone high (middle stages) was not detrimental. These types of stages show effective hydrocarbon production without suffering from increased water. Armed with this knowledge and by incorporating real time GR monitoring during drilling, operators can become better positioned to efficiently complete future wells in the field and remain in the more productive rock.
If you start a wellbore project above a parent well, hydrocarbon will be produced. Also note the increased production from stages in the centre section of the horizontals that was believed to result from accessing rock, not previously produced by the parent well.
The introduction of the frac tracer by Tracerco has helped industry leaders view different segments of their projects. Using this knowledge, the operator can evaluate drilling, stimulation and production decisions, and extract the full benefit of pre-completion seismic and geophysical diagnostics (seismic, log, micro seismic, landing zone, etc.) to ensure enhanced ultimate hydrocarbon recovery.
To find out more, Tracerco, specialists in waterflood and injection gas flow monitoring, has created a more in-depth article including gamma ray images.
Global Offshore rebrands Enelift and invests in global hubs
Global Offshore has rebranded Enelift and will invest "a seven-figure sum" in establishing new support hubs in Houston, Dubai, Singapore, Perth and the Caspian during the next six months.
The investment will cover oil, gas and renewables, mainly concentrating on manufacturing capability with associated R&D, as well as in stock held in the hubs.
The company’s flagship Hinge Lok technology provides aluminium, non-welded light weight transportation cradle for casing and tubing. Enelift now plans to enhance its offering by augmenting its existing solutions with robotics and remote operational and training technology, which will reduce manpower for handling offshore equipment that is transported and stored using the Hinge Lok system.
Enelift is partnering with "a Japanese robotics company" and the technology will be trialed with "a Norwegian operator on a Norwegian drilling rig", according to a statement.
Operating from its bases in Aberdeen, UK and Esbjerg, Enelift was founded by 35-year industry veteran and Managing Director Paul Brebner 10 years ago to offer the offshore energy industries safe, reliable and efficient storage and transportation of equipment.
The expansion plans are bolstered by the appointment of Jim Clark of the Craigendarroch Group to Chairman, and Adam Maitland to Non-Executive Director. Maitland is the Managing Director of Hutcheon Mearns IF, and brings his wealth of expertise in the field of corporate finance.
Brebner said Enelift may be a new name in the market, but the experience it brings is "industry renowned".
"Our solutions are underpinned by safety that enables inefficiencies and their associated costs to be eradicated – meaning operational personnel can focus doing what they do best, safely. We remain committed to providing the safest storage and transportation solutions for equipment in the sector as we grow our global operations," he said.
Clark said the market is changing and its solutions fully support customers’ economic and safety aspirations.
"We are very well placed to take full advantage of increasing opportunities in the Middle East, Africa, Far East and Americas. Safety is our absolute commitment to our customers and our support hubs will facilitate this. Aligning our identity to our entire offering ensures that we will drive our expansion through new products and global support sites across the rest of this year."