发明名称 |
Methods for oil or gas well drilling, washing and/or fracturing |
摘要 |
A drilling or oil and gas well clean up and/or fracturing method comprises providing at least one polymer-degrading enzyme comprising a polypeptide of SEQ ID NO:15, which is added to a drilling fluid used during an oil and gas well drilling operation, or to a fluid used for an oil and gas well clean up and/or fracturing operation. Combined with a second enzyme comprising a polypeptide of SEQ ID NO: 2, the enzyme comprising a polypeptide of SEQ ID NO 15 can be used to degrade a xanthan, a guar, a hydroxyalkyl guar, a carboxyalkyl guar, a guar gum, a guar gum powder, a lignified coat of guar seeds or a solidified guar gum. |
申请公布号 |
EP2444413(A1) |
申请公布日期 |
2012.04.25 |
申请号 |
EP20120150998 |
申请日期 |
2007.08.04 |
申请人 |
VERENIUM CORPORATION |
发明人 |
STEER, BRIAN;HEALEY, SHAUN;ESTEGHLALIAN, ALIREZA;MILES, STACY MARIE;BARRETT, KENNETH;QUADT, RENE |
分类号 |
C07K14/00;C07K17/00;C12N9/24 |
主分类号 |
C07K14/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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