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公开(公告)号：US09891335B2
公开(公告)日：2018-02-13
申请号：US14742021
申请日：2015-06-17
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Douglas E. Miller , Richard Timothy Coates , Tarek M. Habashy , Francois M. Auzerais , Phil F. Sullivan , Dominique Guillot , Rod William Shampine
CPC classification number: G01V1/52 , E21B47/0005 , E21B47/042 , E21B47/06 , E21B47/065 , E21B47/091 , E21B47/18 , G01V1/48
Abstract: A predetermined condition in a fluid-filled wellbore system can be detected by generating at least one sound in the wellbore system in response to the condition, such that a detectable change is created in some characteristic of the emitted sound, and detecting the at least one sound and the change, the detection being indicative that the predetermined condition has occurred. Equipment for facilitating detection of the condition can include a trigger operable in response to the condition; a generator operable to emit sound in the borehole and to create a detectable change in some characteristic of the emitted sound in response to the trigger; and at least one sensor operable to monitor the sound and detect the change, the detection being indicative that the predetermined condition has occurred. It is also possible to estimate a value of a property of a fluid-filled wellbore system. This can be accomplished by recording data including at least one of pressure and rate of flow at one or more locations in the wellbore system, and then estimating the value of the property by employing a model for predicting at least one of pressure and rate of flow dependent upon parameters detailing at least one of wellbore system geometry, viscoacoustic properties of the fluid and entrained solids contained in the wellbore system, locations of boundaries and entrained solids, and characteristics and locations of disturbances to pressure and flow in the wellbore system, in order to determine a best prediction of some attribute of the recorded data.
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公开(公告)号：US20160230071A9
公开(公告)日：2016-08-11
申请号：US13623109
申请日：2012-09-20
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Lijun Lin , Philip F. Sullivan , Dominique Guillot , Bruno Drochon
CPC classification number: C09K8/426 , C04B26/02 , C04B26/04 , C04B28/04 , C09K8/46 , E21B33/13 , C04B14/368 , C04B22/126 , C04B24/2652
Abstract: Compositions comprise polyacrylamide, a non-metallic crosslinker and a pH-adjustment material. Such compositions have utility in the context of remedial cementing, plug cementing in particular. The compositions may be pumped into a subterranean well, where they polymerize and form a support on which a cement plug may sit. The support may maintain the position of the cement plug in the wellbore and minimize cement-plug contamination.
Abstract translation: 组合物包括聚丙烯酰胺，非金属交联剂和pH调节材料。 这种组合物在补救性固井，特别是插塞固井的情况下具有实用性。 可以将组合物泵送到地下井中，在那里它们聚合并形成水泥塞可以放在其上的支撑物。 支撑件可以保持水泥塞在井筒中的位置并且最小化水泥塞污染。
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公开(公告)号：US20140076563A1
公开(公告)日：2014-03-20
申请号：US13623109
申请日：2012-09-20
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Lijun Lin , Philip F. Sullivan , Dominique Guillot , Bruno Drochon
IPC: E21B33/16
CPC classification number: C09K8/426 , C04B26/02 , C04B26/04 , C04B28/04 , C09K8/46 , E21B33/13 , C04B14/368 , C04B22/126 , C04B24/2652
Abstract: Compositions comprise polyacrylamide, a non-metallic crosslinker and a pH-adjustment material. Such compositions have utility in the context of remedial cementing, plug cementing in particular. The compositions may be pumped into a subterranean well, where they polymerize and form a support on which a cement plug may sit. The support may maintain the position of the cement plug in the wellbore and minimize cement-plug contamination.
Abstract translation: 组合物包括聚丙烯酰胺，非金属交联剂和pH调节材料。 这种组合物在补救性固井，特别是插塞固井的情况下具有实用性。 可以将组合物泵送到地下井中，在那里它们聚合并形成水泥塞可以放在其上的支撑物。 支撑件可以保持水泥塞在井筒中的位置并且最小化水泥塞污染。
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