BHP Billiton Approves $2.2B For U.S. Mad Dog Oil Project

[thackney]

BHP Billiton Approves $2.2B For U.S. Mad Dog Oil Project
http://www.rigzone.com/news/oil_gas/a/148440/BHP_Billiton_Approves_22B_For_US_Mad_Dog_Oil_Project
 February 09, 2017

BHP Billiton on Thursday approved its $2.2 billion share of investment for the second phase of the Mad Dog oilfield in the Gulf of Mexico, as expected.

Mad Dog is operated by BP Plc, which said in December it would go ahead with Phase 2 in the Green Canyon deepwater area, building a new floating production facility with a capacity of 140,000 gross barrels of crude oil per day.

Production is due to begin in late 2021....

[thackney]

Mad Dog Phase 2 development details
http://www.offshore-technology.com/projects/mad-dog-phase-2-gulf-of-mexico/

The proposed development will comprise an integrated semi-submersible floating production platform that will be moored in 4,440ft of water in the Green Canyon. It will be located in block 780, west of the existing Mad Dog spar. Oil produced from the field will be transported to the Mardi Gras pipelines as per current agreements.

A water-flood project based on BP's LoSal flooding technology has also been planned in order to enhance oil recovery from the field. It will handle 280,000b/d of low-salinity water flooding.

Design of the platform has been inspired from BP-operated Atlantis semi-submersible platform that is able to decrease the weight of the topsides to 25,000t. It will also integrate the topside infrastructure with the jacket structure.

The development plan outlines the drilling of 29 wells, including 17 wet-tree producers and 12 wet-tree injectors from five drill centres located in blocks 825 and 870. Front-end engineering and design (FEED) work on the project started in the third quarter of 2014.

[geronl]

More on the Mardi Gras pipeline system (owned by BP?)

http://www.offshore-technology.com/projects/mardi_gras/

and

http://www.bp.com/en_us/bp-us/what-we-do/bp-pipelines/our-pipelines-and-terminals/Crude-Oil-Pipelines.html

Seems it will be able to handle a million barrels per day.

[geronl]

@thackney what is a "wet-tree" injector?  Never heard that phraseology before.

I find it amazing that a cruise ship or fishing boat hasn't nailed one of these platforms.  I remember returning from a Caribbean cruise back to Galveston at night and seeing all of the platforms all lit up.  It was miles and miles of them...simply amazing.

Too bad you can't see them on Google Maps.

[thackney]

@thackney what is a "wet-tree" injector?  Never heard that phraseology before.

I find it amazing that a cruise ship or fishing boat hasn't nailed one of these platforms.  I remember returning from a Caribbean cruise back to Galveston at night and seeing all of the platforms all lit up.  It was miles and miles of them...simply amazing.

It is the location of the manifolding, above or below the waterline.

Dry vs. wet trees on production platforms with direct access wells in ultra-deepwater
http://www.offshore-mag.com/articles/print/volume-62/issue-5/news/dry-vs-wet-trees-on-production-platforms-with-direct-access-wells-in-ultra-deepwater.html

Dry tree platforms have a large central well bay for the surface trees. The size is dictated by well count and spacing. Topsides equipment has to be arranged around the well bay. The surface trees are designed for full reservoir shut-in pressures. A large production manifold is required on deck, and a skiddable rig is required for individual well intervention.



A typical wet tree well system for a PD semi includes several trees that are manifolded at the seabed. Co-mingled flow is carried by dual-insulated flowlines and SCRs suspended in porches on the pontoon of the semi hull via flexible joints. An umbilical riser provides control functions to the subsea trees.

[thackney]

Too bad you can't see them on Google Maps.

http://googlesightseeing.com/2006/03/oil-platform-megapost/

The problem with finding oil platforms on Google Maps is that most of the open sea isn’t available on the higher zoom levels. Probably because there isn’t really much out there to see, and it saves Google storing multiple images of lots of boring water. Thankfully near the coast or in the smaller in-land seas and channels some oil platforms have been captured.

[geronl]

That is far more complex than I would have thought

[geronl]

http://googlesightseeing.com/2006/03/oil-platform-megapost/

The problem with finding oil platforms on Google Maps is that most of the open sea isn’t available on the higher zoom levels. Probably because there isn’t really much out there to see, and it saves Google storing multiple images of lots of boring water. Thankfully near the coast or in the smaller in-land seas and channels some oil platforms have been captured.

cool pics

[Idiot]

It is the location of the manifolding, above or below the waterline.

Dry vs. wet trees on production platforms with direct access wells in ultra-deepwater
http://www.offshore-mag.com/articles/print/volume-62/issue-5/news/dry-vs-wet-trees-on-production-platforms-with-direct-access-wells-in-ultra-deepwater.html

Dry tree platforms have a large central well bay for the surface trees. The size is dictated by well count and spacing. Topsides equipment has to be arranged around the well bay. The surface trees are designed for full reservoir shut-in pressures. A large production manifold is required on deck, and a skiddable rig is required for individual well intervention.



A typical wet tree well system for a PD semi includes several trees that are manifolded at the seabed. Co-mingled flow is carried by dual-insulated flowlines and SCRs suspended in porches on the pontoon of the semi hull via flexible joints. An umbilical riser provides control functions to the subsea trees.

@thackney too cool.  Thanks for the explanation.  I'm glad our wells are quite simple...lol.

[IsailedawayfromFR]

@thackney what is a "wet-tree" injector?  Never heard that phraseology before.

I find it amazing that a cruise ship or fishing boat hasn't nailed one of these platforms.  I remember returning from a Caribbean cruise back to Galveston at night and seeing all of the platforms all lit up.  It was miles and miles of them...simply amazing.

In a really simple sense, a dry tree mimics what one would use if the well was on land.  Easy to enter the well and is traditional.

A wet tree is one that is located on the seafloor, and is much more complex to perform well operations on as it must be done with divers or if too deep, remotely. 

There are wet tree producers and wet tree injectors.