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Fracturing filling sand prevention model

A model and sand control technology, which is applied in the direction of production fluid, wellbore/well components, earthwork drilling and production, etc., to achieve the effects of easy observation, good pressure resistance and sealing, and convenient assembly and disassembly

Inactive Publication Date: 2013-08-21
CHINA NAT OFFSHORE OIL CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for the fracturing and filling process, there is currently no instrument and equipment that can conduct simulation research in a more complete and realistic manner.

Method used

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  • Fracturing filling sand prevention model
  • Fracturing filling sand prevention model
  • Fracturing filling sand prevention model

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The following examples are used to illustrate the present invention more specifically, but the present invention is not limited to these examples.

[0023] from figure 1 It can be seen that the model is divided into tank chamber 1 and top cover 2, both of which are made of stainless steel. The size of tank chamber 1 is 460mm×260mm×110mm, and the size of top cover 2 is 390mm×190mm×20mm, which is an embedded fit structure. The model, together with the medium-pressure constant flow pump with large flow rate, hydraulic pump, differential pressure sensor, air bag water tank device to provide stable liquid flow, displacement sensor, laser particle size analyzer and standard sieve, centrifuge, balance, etc., form a complete set experimental system.

[0024] from Figure 2-6 It can be seen that the tank chamber 1 is a detachable structure, including a frame 11, a bottom 12 and four side walls 13, 14, 15, 16, front, rear, left and right, wherein the bottom 12 and the frame 11 ...

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Abstract

The invention relates to a fracturing filling sand prevention model. The model comprises a groove chamber and a top cover, wherein the top cover is hermetically covered on the groove chamber; the top cover and the bottom and front side wall of the groove chamber are provided with liquid inlets, the rear side wall of the groove chamber is provided with a liquid outlet, and the left side or right side wall of the groove chamber is provided with two pressure measuring holes; a lower rock plate, a front rock plate, a support agent and an upper rock plate are arranged in a simulated formation in the model in turn to fill the cavity of the whole model; the model, a hydraulic machine, a high-flow constant-flow plunger pump, a differential pressure sensor, an air sac water tank device, a laser particle analyzer, a centrifugal machine and the like form a whole set of system; fluid seepage and formation sand intrusion conditions at the front end and on the two side walls of a crack in the formation are simulated for different closing pressure and different fluid, sand production and support agent reflow conditions under different perforating aperture and hole density conditions can be simulated, the change of sand production quantity, sand production particle size, crack flow conductivity and crack slit width is tested, and the particle size of a fracturing filling sand prevention support agent is optimized; meanwhile, an embed-free flow conductivity test and a fracturing fluid dynamic filtration experiment can be carried out.

Description

technical field [0001] The invention relates to the technical field of fracturing and filling sand control, and is an experimental device, in particular to a method for simulating the form of formation fractures after fracturing and filling under different closing pressures, for different fluids and formation sands, different particle sizes of proppant and its A fracturing-packing sand control model for a combination of sand control experiments, embedding experiments, and conductivity test experiments. Background technique [0002] As most of my country's main onshore oil fields have entered the medium-high water cut period, accelerating the exploration and development of offshore oil and gas resources has gradually become one of the strategic goals for the future development of my country's petroleum industry. However, due to the remarkable characteristics of good permeability and poor cementation in offshore oil reservoirs, sand production in oil wells is one of the engine...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B49/00E21B43/04E21B43/17E21B43/26
Inventor 曹砚锋张士诚郭天魁曾祥林彭成勇武广瑷房茂军梁丹
Owner CHINA NAT OFFSHORE OIL CORP
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