发明名称 |
METHOD AND DEVICE TO IMPROVE RELIABILITY OF POINT STIMULATION |
摘要 |
FIELD: oil and gas industry.SUBSTANCE: group of inventions is related to underground hydrocarbon inflow stimulation and more specifically to devices improving reliability of point stimulation. Essence of inventions: the invention envisaged pumping of liquid through a stimulator, bypassing of at least a part of the liquid through the stimulator, bypassing of at least a part of the liquid from the stimulator to an anchor unit connected to it so that they can communicate. At that the anchor unit includes housing with a movable former and a one-way restrictor movable inside the former. The one-way restrictor inside the former can be placed to the first position in which the restrictor passes a limited amount of the liquid through the housing. The liquid can be also introduced from the anchor unit in order to install a sand plug at the predefined position and to divert the liquid flow in this position by means of a sand plug.EFFECT: higher efficiency of stimulation and operating reliability of the devices.19 cl, 4 dwg |
申请公布号 |
RU2521573(C2) |
申请公布日期 |
2014.06.27 |
申请号 |
RU20120133388 |
申请日期 |
2010.04.28 |
申请人 |
KHALLIBERTON EHNERDZHI SERVISIZ, INK. |
发明人 |
MAJER GEHRI A.;SUR'JAATMAD'JA DZHIM B.;MAKNEJL FREJZER;RISPLER KIT A. |
分类号 |
E21B43/16;E21B33/128;E21B33/129;E21B34/00 |
主分类号 |
E21B43/16 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|