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Oil and gas well seal packing particle and manufacturing method thereof

A manufacturing method and technology for oil and gas wells, applied in the direction of chemical instruments and methods, drilling compositions, etc., can solve the problems of high cost of artificial hollow glass spheres, and achieve the effect of safe and reliable use, simple and convenient production

Inactive Publication Date: 2017-11-24
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, most of the sealing particles used in the prior art are glassy hollow particles, and the density of glassy hollow particles is 0.5-1.8 g / cm 3 , the particle size is 30um-1000um, because the packing particles have high requirements on density and particle size, the cost of artificial hollow glass spheres is too high, it is difficult to apply in practice

Method used

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  • Oil and gas well seal packing particle and manufacturing method thereof
  • Oil and gas well seal packing particle and manufacturing method thereof

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Embodiment Construction

[0026] Embodiments of the technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and therefore are only examples, rather than limiting the protection scope of the present invention.

[0027] The invention provides an oil and gas well sealing particle, the oil and gas well sealing particle has an average particle diameter of 0.07-0.80mm and a density of 0.90-1.25g / cm 3 polyethylene particles. The so-called oil and gas wells refer to oil and gas wells in a broad sense in the development of oil and gas fields, including oil wells, gas wells, injection wells, etc.

[0028] The oil and gas well isolation particles according to the first aspect of the present invention are easier to manufacture and lower in cost than the glassy hollow particles in the prior art. In addition, when the oil and gas wel...

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Abstract

The invention relates to an oil and gas well seal packing particle and a manufacturing method thereof. The oil and gas well seal packing particle is polyethylene particle with an average particle size of 0.07-0.80mm and a density of 0.90-1.25g / cm<3>. The oil and gas well seal packing particle has good packing effect and low production cost, increases the oil and gas output of oil and gas wells, at the same time lowers the cost of oil and gas recovery.

Description

technical field [0001] The invention belongs to the field of oil and gas exploitation, and in particular relates to an oil and gas well sealing particle and a manufacturing method thereof. Background technique [0002] In the process of oil and gas production, due to the heterogeneity of the reservoir and the difference in the physical properties of oil and water, in oil and gas wells, especially in horizontal wells with serious bottom water coning, formation water is extremely easy to enter the wellbore in advance along the flow channel with high permeability , and quickly occupy most or even all of the wellbore space, resulting in a decline in oil and gas production and a sharp increase in water cut. In this case, segmental flow regulation technology came into being. This technology consists of two parts: flow regulation and segmentation. At present, flow regulation mainly relies on flow managers such as flow regulation and water control screens, while segmentation mainly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/40C08F110/02
CPCC09K8/40C08F110/02C09K2208/10
Inventor 宋海龙武黄知娟张杰张翼万小勇陈东波李林涛邹宁苏鹏
Owner CHINA PETROLEUM & CHEM CORP