據鉆機地帶4月16日報道，得克薩斯州東北部和路易斯安那州西北部海恩斯維爾頁巖區的干天然氣產量在2021年下半年達到新高，2022年初產量保持相對強勁。

根據EIA的數據顯示，2022年2月，海恩斯維爾的天然氣產量約占美國所有干天然氣產量的13%。

海恩斯維爾是美國第三大頁巖氣生產區。阿巴拉契亞盆地（主要位于賓夕法尼亞州、西弗吉尼亞州和俄亥俄州）的Marcellus區塊是美國產量最高的頁巖氣油氣田。

2021年，Marcellus區塊的天然氣日均產量為317億立方英尺。在得克薩斯州和新墨西哥州的二疊紀區塊，2021年的日均產量為124億立方英尺，是全球第二高產區塊。Marcellus、二疊紀和海恩斯維爾地區合計占美國干天然氣產量的52%。

EIA表示，海恩斯維爾的天然氣產量從2012年中期到2016年穩步下降，因為與其他產區相比，其生產天然氣的成本相對較高。

深度在10500～13500英尺的海恩斯維爾的油井比其他區塊的油井更深，鉆井成本往往更高。多年來，天然氣價格相對較低，這意味著鉆更深的井不太經濟。然而，由于天然氣價格自2020年中期以來一直在上漲，生產商有動力增加正在運行的鉆機數量，并使用這些鉆機鉆更深的井。

相比之下，阿巴拉契亞盆地馬塞勒斯的井更淺——在 4000～8500 英尺之間。

隨著天然氣價格的波動，生產商傾向于增加或減少正在運營的鉆機數量。根據貝克休斯的數據顯示，自2020年下半年以來，海恩斯維爾的天然氣導向鉆機數量一直在穩步上升，2021年平均達到46臺。

EIA補充道，自2022年初以來，生產商在海恩斯維爾地區增加了17臺鉆機。截至4月8日的一周內，海恩斯維爾共有64臺天然氣導向鉆機投入運營，占美國目前運營的天然氣導向鉆機的45%。

近年來，海恩斯維爾的管道運輸能力也有所提高。增加的運輸能力使生產商能夠到達美國墨西哥灣沿岸的工業需求中心和液化天然氣終端。

Enterprise Products Partners 的Gillis橫向管道和相關的 Acadian Haynesville Extension擴建項目于2021年12月投入使用。

在這些項目之前，Enbridge Midcoast Energy的CJ Express管道于2021年4月投入使用。這些項目為海恩斯維爾地區增加了13億立方英尺/天的外賣輸送能力，目前約為159億立方英尺/天。

郝芬 譯自 鉆機地帶

原文如下：

Haynesville Natural Gas Production Hits Record High In Late 2021

Dry natural gas production from the Haynesville shale play in northeastern Texas and northwestern Louisiana reached new highs in the second half of 2021, and production remained relatively strong in early 2022.

According to data by the EIA, Haynesville natural gas production accounted for about 13 percent of all U.S. dry natural gas production in February 2022.

Haynesville is the third-largest shale gas-producing play in the United States. The Marcellus play in the Appalachian Basin – mainly in Pennsylvania, West Virginia, and Ohio – is the highest-producing shale gas play in the United States.

In 2021, an average of 31.7 billion cubic feet per day (Bcf/d) of natural gas was produced from the Marcellus play. In the Permian play in Texas and New Mexico, production averaged 12.4 Bcf/d in 2021, making it the second-highest producing play. Altogether, the Marcellus, the Permian, and the Haynesville account for 52 percent of U.S. dry natural gas production.

EIA said that natural gas production in Haynesville declined steadily from mid-2012 until 2016 due to its relatively higher cost to produce natural gas compared with other producing areas.

At depths of 10,500 feet to 13,500 feet, wells in the Haynesville are deeper than in other plays, and drilling costs tend to be higher. Years of relatively low natural gas prices meant it was less economical to drill deeper wells. However, because natural gas prices have increased since mid-2020, producers have an incentive to increase the number of rigs in operation and use those rigs to drill deeper wells.

By comparison, wells in the Marcellus in the Appalachian Basin are shallower – between 4,000 feet and 8,500 feet.

Producers tend to increase or decrease the number of drilling rigs in operation as natural gas prices fluctuate. The number of natural gas-directed rigs in Haynesville has been rising steadily since the second half of 2020 and reached an average of 46 rigs in 2021, according to data by Baker Hughes.

EIA added that producers have added 17 rigs in the Haynesville region since the beginning of 2022. For the week ending April 8, 64 natural gas-directed rigs were operating in Haynesville, representing 45 percent of natural gas-directed rigs currently operating in the United States.

Pipeline takeaway capacity out of Haynesville has also increased in recent years. The additional capacity allows producers to reach industrial demand centers and liquefied natural gas terminals on the U.S. Gulf Coast.

The Enterprise Products Partners’ Gillis Lateral pipeline and the associated expansion of the Acadian Haynesville Extension entered into service in December 2021.

Before that project, Enbridge Midcoast Energy’s CJ Express pipeline entered service in April 2021. These projects added 1.3 Bcf/d of takeaway capacity in the Haynesville area, which is currently estimated to total 15.9 Bcf/d.