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Oilfield underground high-pressure fluid-driven spinning horizontal perforating device and application thereof

A high-pressure fluid and perforating device technology, which is used in underwater drilling, wellbore/well components, earth-moving drilling, etc., can solve the problems of limited driving force of high-pressure hose, short horizontal well hole distance, troublesome work, etc. The effect of labor intensity, improving work efficiency and improving oil recovery

Inactive Publication Date: 2012-12-19
龚智勇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen from this that the existing device for drilling horizontal holes is very cumbersome, time-consuming and labor-intensive. In addition, due to the softness of the high-pressure rubber hose, the well holes punched are not completely straight horizontal holes, and tilt in the vertical direction. At the same time, the high-pressure The driving force of the rubber hose is limited, so that the distance of the horizontal well hole is short

Method used

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  • Oilfield underground high-pressure fluid-driven spinning horizontal perforating device and application thereof
  • Oilfield underground high-pressure fluid-driven spinning horizontal perforating device and application thereof
  • Oilfield underground high-pressure fluid-driven spinning horizontal perforating device and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] like figure 1 As shown, the spin horizontal drilling device driven by high-pressure fluid in the oil field is mainly composed of a surface high-pressure water system, a drilling-production drilling mechanism, and a casing drilling mechanism. In this embodiment, the high-pressure fluid is high-pressure water, and the surface high-pressure The fluid system adopts the surface high-pressure water system, and the drilling and production drilling mechanism and the casing drilling mechanism are installed in the high-pressure chamber in the well 1. The surface high-pressure water system communicates with the high-pressure chamber. After forming; the surface high-pressure water system is composed of a wellhead, a lifting and centralizing mechanism 14, an abrasive adding device 15, and a pneumatic pump 16. The lifting and centralizing mechanism 14 is composed of inner and outer two-layer casings and lifting arms. connection, the casing lower end of the lifting and righting mechan...

Embodiment 2

[0031] figure 2 Provide the structural representation of embodiment 2, as shown in the figure, this embodiment and figure 1 The difference of the illustrated embodiment is that the push-feed mechanism utilizes the double-acting hydraulic cylinder 19 and the automatic reversing valve 20 to replace the feed spring group 7 and the spring group fixing seat, and the hydraulic rod of the double-acting hydraulic cylinder 19 and the horizontal guide hole The inner drive guide block 11 is connected, and the drive guide block 11 is embedded in the base of the high-pressure jet spin spray head 9 . Other structures are the same as in Embodiment 1.

[0032] The first stage of the working process of this embodiment is the same as that of Embodiment 1. In the second stage, the double-acting hydraulic cylinder 19 and the automatic reversing valve 20 push and drive the guide block 11 and the high-pressure jet spin nozzle 9, using the principle of high-pressure water jet , Utilize high-press...

Embodiment 3

[0034] image 3 A schematic structural diagram of Embodiment 3 is provided. As shown in the figure, this oilfield downhole high-pressure fluid-driven spin horizontal drilling device is mainly composed of a surface high-pressure water system, a drilling-production drilling mechanism, and a casing drilling mechanism. The surface high-pressure water system consists of a wellhead, a lifting and centralizing mechanism 14, an abrasive adding device 15, a water pump 22, and an electromagnetic control valve 21. The abrasive adding device 15 is connected to the water pump 22 through a horizontal pipe, and the water pump 22 is connected to the electromagnetic control valve 21. The electromagnetic control valve 21 is The two-position three-way solenoid valve, the solenoid control valve 21 is connected with the high-pressure pipeline from the high-pressure water injection truck, and the water pump 22 is connected with the pipeline from the oil field operation water tank truck.

[0035] Th...

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Abstract

The invention relates to an oilfield underground high-pressure fluid-driven spinning horizontal perforating device and application thereof. The oilfield underground high-pressure fluid-driven spinning horizontal perforating device comprises a ground high-pressure fluid system and a drilling perforating mechanism, wherein the drilling perforating mechanism is arranged in a high-pressure cavity in a well; the ground high-pressure fluid system is communicated with the high-pressure cavity; the drilling perforating mechanism consists of a propelling feed mechanism and a high-pressure jet flow spinning spray-head; the high-pressure jet flow spinning spray-head is arranged in a horizontal guide hole of a guide device; drive guide blocks of the propelling feed mechanism are arranged in parallel in a vertical guide groove of the guide device; the middle part of the drive guide block is provided with a horizontal through hole; and when submerged into the horizontal guide hole, the drive guide blocks are connected with the high-pressure jet flow spinning spray-head to propel the high-pressure jet flow spinning spray-head to move along the horizontal guide hole. The oilfield underground high-pressure fluid-driven spinning horizontal perforating device and the application thereof can ensure the directed perforation of the high-pressure jet flow spinning spray-head to perforate straight horizontal well holes, and simultaneously make longer the perforated horizontal well holes so as to increase infiltrating areas and recovery ratio.

Description

1. Technical field: [0001] The invention relates to an oilfield downhole drilling device, in particular to an oilfield downhole high-pressure fluid-driven spin horizontal drilling device and an application thereof. 2. Background technology: [0002] In petroleum exploration and development, with the continuous exploitation of petroleum, the pressure of the underground oil layer is constantly decreasing. In order to improve the oil recovery efficiency, it is necessary to drill horizontal well holes in the horizontal direction of the original wellbore on the basis of the original oil wells to expand the penetration. oil area. The existing device for drilling horizontal holes mainly includes ground high-pressure water system, high-pressure rubber hose, high-pressure jet spin nozzle, hydraulic motor, and drill bit. The hydraulic motor is connected to the drill bit to form a casing drilling mechanism. Drill horizontal boreholes. This device requires two steps when drilling a ho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B7/12E21B41/04
Inventor 龚智勇
Owner 龚智勇
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