Sand-sticking preventing device for horizontal well cable transmission hydraulic pumping tool, and method of sand-sticking preventing device

A cable transmission and horizontal well technology, applied in the field of oil and gas field exploration and development, can solve problems such as stuck pipe and pumping failure, achieve high-speed pumping, and avoid pumping failure or stuck pipe accident.

Inactive Publication Date: 2019-06-18
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide an anti-sand jamming device and method for horizontal well cable transmission hydraulic pumping tools to solve the problem of pumping failure or drill stuck accident caused by sand sinking in the wellbore. question

Method used

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  • Sand-sticking preventing device for horizontal well cable transmission hydraulic pumping tool, and method of sand-sticking preventing device

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Embodiment Construction

[0028] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientation or positional relationship indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", "side", "end", "side" etc. is based on the Orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0029] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connecti...

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Abstract

The invention discloses a sand-sticking preventing device for a horizontal well cable transmission hydraulic pumping tool, and a method of the sand-sticking preventing device. The sand-sticking preventing device comprises a magnetic positioning device, a perforation gun string, a bridge plug putting and setting tool and a bridge plug and a sand levee clearing tool; the sand levee clearing tool isarranged in a casing pipe and sequentially connected with the bridge plug, the bridge plug putting and setting tool, the perforation gun string and the magnetic positioning device through a cable, andthe sand levee clearing tool is powered by the cable to clear a sand levee in the casing pipe by rotating at a high speed. According to the sand-sticking preventing device, the pumping failure or drilling-sticking accident caused by sand setting in the casing pipe of a horizontal well can be effectively avoided, and thus a tool string in the casing pipe of the horizontal well is pumped safely andefficiently at the high speed.

Description

technical field [0001] The invention belongs to the technical field of oil and gas field exploration and development, and in particular relates to a sand jam prevention device and method for horizontal well cable transmission hydraulic pumping tools. Background technique [0002] During the staged sand injection fracturing process of horizontal wells, sand settling will inevitably occur in the wellbore. For horizontal wells with complex well trajectory, sand settling is relatively more serious. After the fracturing of any section of the horizontal well is completed, before the fracturing of the next section, the bridge plugs and perforating guns are usually sent in series between the two sections by means of cable transmission and hydraulic pumping, and the bridge plugs are ignited and set to seal the section. After the space is isolated, it is lifted up to carry out multi-cluster perforation. Due to the sand settling in the wellbore of horizontal wells, when the tool strin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B23/00E21B23/14E21B37/00E21B43/119E21B43/117E21B33/134E21B43/267
Inventor 马兵刘顺李晓燕陈强杜现飞白晓虎胡超殷桂琴王蓓山树民
Owner PETROCHINA CO LTD
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