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    • 1. 发明申请
    • Set-on demand, ester-based wellbore fluids and methods of using the same
    • 基于需求的酯基井筒流体及其使用方法
    • US20060030494A1
    • 2006-02-09
    • US10910103
    • 2004-08-03
    • James GriffithRon NidaJohn Dennis
    • James GriffithRon NidaJohn Dennis
    • C09K8/60E21B43/00
    • C04B28/02C09K8/467C09K8/506C04B22/064C04B24/08C04B40/005C04B40/0075
    • Methods of servicing a wellbore in contact with a subterranean formation include passing an ester-based fluid into the wellbore and reducing a temperature of the ester-based fluid by an amount effective to cause the ester-based fluid to set, e.g., by from about 10° F. to about 20° F. The ester-based fluid includes a water in ester-based oil emulsion, a pH controlling additive, e.g., hydrated lime, in the water-phase, and an emulsifier to stabilize the pH controlling additive. Cooling the ester-based fluid causes the emulsion to destabilize, resulting in the release of the pH controlling additive. This release lowers the pH of the ester-based fluid by an effective amount to cause it to set. Wellbore servicing fluids comprising the foregoing ester-based fluid may be employed as environmentally friendly sealants or spotting fluids in wellbores.
    • 维护与地下地层相接触的井眼的方法包括将酯基流体通入井眼中,并且以有效地使酯基流体凝固的量使酯基流体的温度降低,例如从约 10°F至约20°F。酯基流体包括酯基油乳液中的水,水相中的pH调节添加剂,例如熟石灰,以及稳定pH控制添加剂的乳化剂 。 冷却酯基流体导致乳液不稳定,导致pH控制添加剂的释放。 该释放将酯基流体的pH降低有效量以使其固化。 包含上述酯基流体的井筒维修流体可以用作在井筒中的环境密封剂或点样液。
    • 4. 发明申请
    • Method and means to seal the casing-by-casing annulus at the surface for reverse circulation cement jobs
    • 在表面密封套管套管环路用于反循环水泥作业的方法和方法
    • US20070137870A1
    • 2007-06-21
    • US11314044
    • 2005-12-20
    • James GriffithCaleb Carroll
    • James GriffithCaleb Carroll
    • E21B19/00
    • E21B33/05E21B33/14
    • A method for sealing an annulus defined between an outer casing and an inner casing, the method having steps as follows: fastening a lock ring to an anchor base, wherein the lock ring comprises a threaded fastener of the lock ring to the head; positioning the lock ring and anchor base about the outer casing; fastening a limit clamp to an exterior surface of the outer casing; repositioning the lock ring and anchor base so that the anchor base is in contact with the limit clamp; fastening a head to the lock ring; providing an opening for fluid communication with the annulus through the head; positioning a plug about the inner casing and in contact with the inner casing and the head; positioning a seal fitting clamp about the inner casing and in contact with the plug; positioning a bull cap about the inner casing and in contact with the seal fitting clamp; and fastening the bull cap to the head.
    • 一种用于密封限定在外壳和内壳之间的环的方法,所述方法具有以下步骤:将锁环固定到锚固基座,其中所述锁环包括所述锁环的螺纹紧固件到所述头部; 将锁环和锚固基座围绕外壳定位; 将限位夹固定到所述外壳的外表面; 重新定位锁定环和锚固基座,使得锚固基座与限位夹具接触; 将头部固定在锁环上; 提供用于通过头部与环带流体连通的开口; 将塞子定位在内壳体周围并与内壳体和头部接触; 将密封配件夹具围绕内壳定位并与插头接触; 将公牛帽围绕内壳定位并与密封配件夹具接触; 并将公牛帽固定在头上。