公开(公告)号：US20090048126A1

公开(公告)日：2009-02-19

申请号：US12176972

申请日：2008-07-21

申请人： Alhad Phatak ,  Michael D. Parris ,  Yenny Christanti ,  Balkrishna Gadiyar ,  Philip F. Sullivan ,  Carlos Abad

发明人： Alhad Phatak ,  Michael D. Parris ,  Yenny Christanti ,  Balkrishna Gadiyar ,  Philip F. Sullivan ,  Carlos Abad

IPC分类号： C09K8/68

CPC分类号： C09K8/685

摘要： A method of treating a subterranean formation penetrated by a wellbore is carried out by providing a treatment fluid comprising a hydratable polymer, a divalent metal salt in an amount of at least about 0.25 mol/L and an aluminum crosslinking agent. The fluid is provided with a pH of from about 5 or higher. The treatment fluid may be caused to contact the formation by introducing the fluid into the wellbore. The fluid may optionally contain a polyol.

摘要翻译： 通过提供包含可水合聚合物，至少约0.25mol / L的二价金属盐和铝交联剂的处理流体来进行处理由井眼渗透的地下地层的方法。 流体的pH为约5或更高。 可以通过将流体引入井筒来使处理流体接触地层。 流体可以任选地含有多元醇。

公开(公告)号：US20080103068A1

公开(公告)日：2008-05-01

申请号：US11554917

申请日：2006-10-31

申请人： Michael D. Parris

发明人： Michael D. Parris

IPC分类号： C09K8/60

CPC分类号： C09K8/685

摘要： A delayed crosslinker system useful in downhole treatment fluids is disclosed. The crosslinker system comprises water-reactive solids, a non-aqueous, non-oily, hygroscopic liquid, a suspension aid, and an optional polyol. The crosslinker system may be prepared at a remote location and transported to the site of its intended use. There it may be pumped into a formation and activated when a gel fluid is introduced into the wellbore, only then forming a high viscosity treatment fluid. Thus, the amount of energy required for pumping is reduced. The optional polyol component increases crosslink delay and enhances the rate of viscosity after high shear (shear recovery).

摘要翻译： 公开了一种用于井下处理流体的延迟交联剂体系。 交联剂体系包括水反应性固体，非水性，非油性，吸湿性液体，悬浮助剂和任选的多元醇。 交联剂系统可以在远程位置制备并运送到其预期用途的位置。 当将凝胶流体引入井筒中时，可以将其泵送到地层中并激活，然后仅形成高粘度处理流体。 因此，泵送所需的能量减少。 任选的多元醇组分增加交联延迟并增加高剪切后的粘度（剪切恢复）速率。