Development and Production Archives - Page 4 of 16

Development and Production

What is the longest well drilled along hole?

Based on a post on social media, in which we asked our followers to name the well with the highest step-out ratio – the ratio between horizontal distance and vertical depth – we got a good number of replies. The…

Henk Kombrink

February 26, 2024

Oil – and increasingly gas – on steroids

“We went from two to nineteen mudlogging units recently”, said a representative from Geolog at the IPTC Conference in Saudi Arabia this week. “It is obvious that things are picking up for the industry in this part of the world.”…

Henk Kombrink

February 21, 2024

Analysing a hydraulically fractured horizontal core to assess refrac candidates

Is a refrac worth the investment? That is what we investigated in an extensive study. A key piece of data in the study included a horizontal core adjacent to a parent well that was already frac’d. The 128 m core…

Molly Turko, Cameron Thompson and Kourtney Brinkley - Devon Energy; Julia Gale and Sara Elliot, Bureau of Economic Geology

February 1, 2024

What could be behind the downgrade of Shell’s deep-water discoveries in Namibia?

This week, Namibia’s petroleum commissioner Maggy Shino announced that Shell has thus far discovered 200 million barrels of recoverable oil at Graff and 300 million barrels of recoverable oil at Jonker. These figures are significantly lower than previous estimates. In…

Henk Kombrink

January 26, 2024

More wells

High-impact New player MCF will drill two high-impact wells in Germany in Q1 2024. One will be a development well in the Lech area Bavaria, Germany. A previously drilled well at Lech flowed at rate of over 20 mmcf/d of…

Gehrig Schultz

January 24, 2024

Ghawar keeps on going

In November last year, Aramco announced that it produced its first unconventional tight gas from the Ghawar South project, producing up to 300 mmscf/day of gas and 38 kbpd of condensate. It is the second project of this kind after…

Henk Kombrink

January 17, 2024

The future looks bright for the world’s fourth-youngest country

Timor-Leste was quick to capitalise on its oil and gas resources after in became independent in 2002. In the same year, a treaty was signed with Australia for a Joint Petroleum Development Area (JPDA) in the Timor Sea. Importantly, the…

Ian Cross

December 18, 2023

Are the glory days over?

As the magazine’s last issue of the year is now being printed, I have a bit of time to reflect on some of its content. That’s the advantage of being an editor; I may be the one who reads the…

Henk Kombrink

December 4, 2023

Why did it take so long to develop Rosebank?

Rosebank was discovered in 2004 by Chevron and partners DONG, OMV and then StatoilHydro. The reservoir quality of the Paleocene/Eocene Colsay Sandstone Member was shown to be good (around 20%), permeabilities great (around 3 Darcy) and an average oil quality…

Henk Kombrink

September 29, 2023

Production allocation and fluid fingerprinting in conventional reservoirs

Geochemical fingerprinting for production allocation of oil, gas or water is a well-established workflow in conventional reservoirs for both subsurface and topside facilities applications. These methodologies have been in existence for >30 years, during which time various analytical methods, data…

Craig D. Barrie and Eric Michael, APT

September 25, 2023

Natural fracture networks are not created equal

Natural fracture networks are not created equal. In a tight reservoir, they may enhance the permeability and give production an upside. In a porous reservoir, a natural fracture network may connect to water, in which faults and fracture zones may…

Dr. Molly Turko, Devon Energy

September 12, 2023

Australia faces a future of contrasting policies for oil and gas in a rapidly evolving energy landscape

State budgets are in surplus for those with active producing sectors. For instance, Queensland announced A$2.33 billion in petroleum royalties for 2023, helping underpin a record A$12 billion surplus and a projected A$7 billion over the next five years. Similarly,…

Geoff Freer, NVENTURES

August 16, 2023

The global energy sector from a subsurface perspective