简介：R&M 能源系统公司，发布了其最新一组Moyno高温井下泵 ，螺杆泵（PCP）家族成员之一，可以在以前所谓的禁区内作业。公司称该高温井下泵的旋转性能优于往复泵，效率更高，克服了以往的电潜泵的缺陷。

                                                                                                                                               The Moyno HTD350 downhole pump

R&M Energy Systems has launched its new line of Moyno High-Temperature Downhole (HTD) pumps, a family of progressing-cavity pumps (PCPs) that reportedly operate in conditions previously considered off-limits for this class of pumps.

The rotary action of the HTD pump outperforms reciprocating pumps and has an operating efficiency that surpasses conventional electric submersible pumps, according to the company.

Other design benefits include:

The use of proprietary elastomers that not only withstand high temperatures, but also work efficiently in wells containing aromatic fluids .

An elastomer stator that is mechanically secured to the stator tube rather than chemically bonded, which provides greater temperature and chemical resistance .

For very high operating temperatures, metal-to-metal rotors and stators are used without elastomers, which eliminates any limitations resulting from an elastomeric stator element and raises the maximum downhole temperature limit to a level previously not experienced with PCPs .

Closely controlled tolerances between the metal-to-metal rotor/stator clearance for superior performance .

Low levels of vibration produced, comparable to conventional downhole PCPs .

The result of extensive R&D and in-field application testing, the HTD pump is ideally suited for crude oil extraction and is capable of handling fluids ranging from water and light crudes to highly abrasive heavy oil. In addition, because it cannot gas lock, it is applicable for dewatering gaseous formations.

The pumps operate in a temperature range from 250 to 660°F, and come in three major classes: the HTD300 (capable of operating at temperatures up to 300°F), the HTD350 (upper limit of 350°F), and the HTD660 (upper limit of 660°F).

The HTD350 is reportedly compatible with steam-injection applications without having to remove the stator from the well. Available models include:

95 BFPD per 100 rpm and up to 6,000 ft lift 
275 BFPD per 100 rpm and up to 5,400 ft lift
500 BFPD per 100 rpm and up to 4,000 ft lift 

                                                                                                                        The HTD350 stator elastomer is mechanically secured to the stator tube. 

The HTD660 pump’s stator does not include elastomer, and is suited to handle hot oil encountered during thermal recovery methods, such as steam-assisted gravity drainage and cyclic steam stimulation. It is currently available in one model, capable of handling 1300 BFPD per 100 rpm and up to 2,200 ft lift.

R&M Energy Systems, part of the Fluids Management Group of Robbins & Myers, manufactures and markets a wide variety of products for use in the discovery and recovery segments of the oil and gas industry. 

For more information, please visit www.rmenergy.com

杨宝剑 是振威（全球）石油网的高级技术编辑，在石油技术资讯行业有八年的学识和经验。他源源不断地提供石油行业全球最新的技术创新、研发成果、现场应用情况等信息。如果你对该项新技术有任何的疑问，或者对“新技术新产品”未来的内容有任何问题或建议，请联系杨宝剑编辑 +86 10-58236512 Email：allenyo@zhenweiexpo.com 欢迎与行业互动！