专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07219731B2 Degradable additive for viscoelastic surfactant based fluid systems 有权
标题翻译：用于粘弹性表面活性剂的流体系统的可降解添加剂
公开(公告)号：US07219731B2
公开(公告)日：2007-05-22
申请号：US11159023
申请日：2005-06-22
申请人： Philip F. Sullivan , J Ernest Brown , Jesse C. Lee , Golchehreh Salamat
发明人： Philip F. Sullivan , J Ernest Brown , Jesse C. Lee , Golchehreh Salamat
IPC分类号： E21B43/04 , E21B43/22 , E21B43/267
CPC分类号： C09K8/68 , C09K8/506 , C09K8/62 , C09K8/70 , C09K8/72 , C09K8/74 , C09K2208/26 , C09K2208/30 , Y10S507/902
摘要： A method is given for treating a subterranean formation penetrated by a wellbore with a viscosified fluid. The fluid contains a solid hydrolysable polyacid that upon dissolution and hydrolysis releases an acid that is a breaker for the viscosifying system. Suitable solid hydrolysable polyacids include polylactic acid and polyglycolic acid. The fluid also contains a pH control agent, present in an amount sufficient to neutralize any acid present in the solid hydrolysable polyacid before the injection and to neutralize any acid generated by the solid hydrolysable polyacid during the injection, so that the acid breaker is not available to break the fluid during the injection. In one embodiment the viscosifier is a viscoelastic surfactant fluid system and the solid hydrolysable polyacid is of a size selected to be a fluid loss additive, for example in fracturing or gravel packing. In another embodiment, the solid hydrolysable polyacid is used in particles sufficiently small that they enter the pores of the formation. In either case, the viscosifier is broken after the solid releases more acid than can be neutralized by the pH control agent.
摘要翻译：给出了用增稠液体处理井眼渗透的地层的方法。流体包含固体可水解的多酸，其在溶解和水解时释放酸，该酸是用于增粘体系的断裂剂。合适的固体可水解的多元酸包括聚乳酸和聚乙醇酸。流体还含有pH控制剂，其量足以中和注射前固体可水解的多元酸中存在的任何酸，并且在注射期间中和由固体可水解的多元酸产生的任何酸，使得酸破乳剂不可用在注射期间打破流体。在一个实施方案中，增粘剂是粘弹性表面活性剂流体系统，并且固体可水解的多元酸的尺寸被选择为流体损失添加剂，例如在压裂或砾石包装中。在另一个实施方案中，固体可水解的多元酸以足够小的颗粒使用，使得它们进入地层的孔。在任一种情况下，在固体释放比可以被pH控制剂中和的酸更多之后，粘稠剂被破坏。

2. 发明授权

US08225867B2 Systems and methods for distributed interferometric acoustic monitoring 有权
标题翻译：分布式干涉声学监测系统和方法
公开(公告)号：US08225867B2
公开(公告)日：2012-07-24
申请号：US13085921
申请日：2011-04-13
申请人： Arthur H Hartog , J Ernest Brown , John Mervyn Cook , Jonathan Elphick , Paul S Hammond , Ashley Bernard Johnson
发明人： Arthur H Hartog , J Ernest Brown , John Mervyn Cook , Jonathan Elphick , Paul S Hammond , Ashley Bernard Johnson
IPC分类号： E21B47/00
CPC分类号： G01V8/02 , E21B41/0064 , E21B43/26 , E21B47/06 , E21B47/123 , G01V1/226 , G01V8/16 , Y02C10/14
摘要： Acoustic monitoring is carried out using a fiber optic cable. Coherent Rayleigh noise generated by the transmission of a coherent beam of radiation through the fiber optic cable is detected, a phase of the coherent Rayleigh noise is measured and the measured phase is processed to identify an acoustic occurrence along the fiber optic cable. In certain aspects an optical fiber serves as a distributed interferometer that may be used to monitor a conduit, wellbore or reservoir. The distributed interferometric monitoring provides for accurate detection of acoustic occurrences along the fiber optic cable and these acoustic occurrences may include fluid flow in a pipeline or wellbore, processes taking place in a wellbore or pipeline, fracturing, gravel packing, or production logging.
摘要翻译：使用光纤电缆进行声学监测。检测到通过光纤电缆传输相干的辐射束产生的相干瑞利噪声，测量相干瑞利噪声的相位，并且处理测量的相位以识别沿着光纤电缆的声音发生。在某些方面，光纤用作分布式干涉仪，其可用于监测导管，井眼或储层。分布式干涉测量提供对沿着光纤电缆的声学发生的精确检测，并且这些声学发生可以包括在管道或井眼中的流体流动，在井眼或管道中发生的过程，压裂，砾石填充或生产测井。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式