{"id":24049,"date":"2013-10-29T08:37:56","date_gmt":"2013-10-29T08:37:56","guid":{"rendered":"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/?p=24049"},"modified":"2013-11-22T15:23:20","modified_gmt":"2013-11-22T15:23:20","slug":"gaz-de-schistes-secs-ou-humides-voila-la-bonne-question","status":"publish","type":"post","link":"https:\/\/blogs.thesocialmedia.com\/leblogenergie\/2013\/10\/29\/gaz-de-schistes-secs-ou-humides-voila-la-bonne-question\/","title":{"rendered":"Gaz de schistes secs ou humides? Voila la bonne question!"},"content":{"rendered":"

Plut\u00f4t que de raconter d’obscures salades (elles \u00e9taient attendues) sur l’\u00e9puisement programm\u00e9 des gaz de schistes am\u00e9ricains, mieux vaut consulter les derni\u00e8res donn\u00e9es<\/a> de l’EIA am\u00e9ricaine sur les productions de gaz et de condensats associ\u00e9s pour les divers gisements en cours d’exploitation. Bien s\u00fbr, les gisements non encore exploit\u00e9s comme celui d’Utica<\/a>, plus large,\u00a0 plus profond et plus \u00ab\u00a0humide\u00a0\u00bb que celui de Marcellus ne font pas encore l’objet de rapports.<\/p>\n

Ces publications nous racontent les productions moyennes par puits pour le gaz et le p\u00e9trole associ\u00e9 qui sont g\u00e9n\u00e9ralement en croissance. Mais \u00e0 partir des productions mensuelles de gaz et de condensats, il est possible de quantifier une donn\u00e9e \u00e9conomique essentielle: la teneur moyenne en condensats des gaz de schistes exploit\u00e9s qui s’exprime en baril par millier de pied cube de gaz extrait. Ce rapport varie de pratiquement z\u00e9ro pour le gisement de Haynesville \u00e0 cheval entre le Texas et la Louisiane (FIG., tache grise) et des valeurs proche de 1 pour le prolifique gisement de Bakken dans le Nord-Dakota (FIG., tache jaune) et qui produit pr\u00e8s d’un million de barils par jour de condensats.<\/p>\n

\"\"<\/a><\/p>\n

FIG. Principaux gisements de gaz de schistes am\u00e9ricains et teneur moyenne en condensats en barils par millier de pied cube (EIA). Cliquez sur l’image pour en obtenir une version lisible.
\n<\/span><\/p>\n

Compte tenu des cours du gaz naturel aux \u00c9tats-Unis qui se situent au-dessous de 4 dollars par MMBTU et compte tenu des 1022 BTU apport\u00e9s par la combustion d’un pied cube de gaz naturel am\u00e9ricain, le prix de vente du millier de pied cube de gaz am\u00e9ricain se situe au-dessous des 4 dollars. Si est associ\u00e9 \u00e0 ce millier de pied-cube de gaz, un baril de p\u00e9trole cot\u00e9 vers les 95 dollars, l’\u00e9quation \u00e9conomique de l’exploitation du gisement est radicalement transform\u00e9e.<\/p>\n

Peut-\u00eatre faut-il voir l\u00e0, la seule et unique raison du d\u00e9clin des productions du gisement de Haynesville qui ne produisait en Novembre 2013 que 45 barils de p\u00e9trole par jour et par puits \u00e0 comparer aux 482 barils de p\u00e9trole par jour et par puits du gisement de Bakken.<\/p>\n

Une baisse des cours du p\u00e9trole r\u00e9gional (WTI) aux \u00c9tats-Unis porterait un coup, peut-\u00eatre fatal,\u00a0 aux exploitations de gaz de schistes \u00ab\u00a0peu humides\u00a0\u00bb am\u00e9ricaines telles que celui de Marcellus en Pennsylvanie et dans l’Ouest-Virginie (FIG., tache verte), en attendant des cours plus favorables pour le gaz.<\/p>\n

Le 29 Octobre 2013<\/p>\n","protected":false},"excerpt":{"rendered":"

Plut\u00f4t que de raconter d’obscures salades (elles \u00e9taient attendues) sur l’\u00e9puisement programm\u00e9 des gaz de schistes am\u00e9ricains, mieux vaut consulter les derni\u00e8res donn\u00e9es de l’EIA am\u00e9ricaine sur les productions de gaz et de condensats associ\u00e9s pour les divers gisements en cours d’exploitation. Bien s\u00fbr, les gisements non encore exploit\u00e9s comme celui d’Utica, plus large,\u00a0 plus […]<\/p>\n","protected":false},"author":341,"featured_media":24050,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[2207],"class_list":["post-24049","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-energie-fossile","tag-slider"],"yoast_head":"\nGaz de schistes secs ou humides? 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