发明名称 |
Methods and compositions of improving wellbore cleanout treatments |
摘要 |
Methods of performing a cleanout treatment including providing a wellbore in a subterranean formation having unconsolidated particulates therein; providing a treatment fluid comprising an aqueous base fluid and a hydrophobically modified flocculating water-soluble polymer; introducing the treatment fluid into the wellbore in the subterranean formation; flocculating at least a portion of the unconsolidated particulates by exposure to the hydrophobically modified flocculating water-soluble polymer; removing the treatment fluid comprising the flocculated unconsolidated particulates from the wellbore in the subterranean formation. |
申请公布号 |
US9475976(B2) |
申请公布日期 |
2016.10.25 |
申请号 |
US201313897559 |
申请日期 |
2013.05.20 |
申请人 |
Halliburton Energy Services, Inc. |
发明人 |
Vasquez Julio Estuardo;Reddy B. Raghava;Pascarella Natalie Lynn |
分类号 |
E21B43/12;C09K8/52 |
主分类号 |
E21B43/12 |
代理机构 |
McDermott Will & Emery LLP |
代理人 |
McDermott Will & Emery LLP ;Roddy Craig |
主权项 |
1. A method comprising:
providing a treatment fluid comprising an aqueous base fluid, a hydrophobically modified flocculating water-soluble polymer, a corrosion inhibitor present in the treatment fluid in an amount in the range of about 0.1% to about 3% by volume of the treatment fluid, and separate supplemental polymers present in the treatment fluid in an amount in the range of about 0.5% to about 5% by weight of the treatment fluid, wherein the separate supplemental polymers are a combination of a non-hydrophobically modified flocculating polymer of a poly(diallyldimethylammonium chloride) and a relative permeability modifier polymer; introducing the treatment fluid into a wellbore in a subterranean formation having unconsolidated particulates therein; flocculating at least a portion of the unconsolidated particulates by exposure to the hydrophobically modified flocculating water-soluble polymer; removing the treatment fluid comprising the flocculated unconsolidated particulates from the wellbore in the subterranean formation. |
地址 |
Houston TX US |