Geochemistry measuring method for pouring and acquiring residual oil parameter characteristic and relationship of mainstream line and shunt line oil reservoir

A technology of geochemistry and parameter characteristics, applied in geophysical measurement, earthwork drilling and production, instruments, etc., can solve the problem of not being able to obtain the actual data of parameters such as the remaining oil saturation of the main line and diversion line reservoirs, and achieve Apply promising effects

Active Publication Date: 2009-05-06
DAQING OILFIELD CO LTD +1
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Problems solved by technology

[0004] In order to solve the problem that the existing method of physical simulation cannot obtain the actual data of parameters such as the remaining oil saturation of the main line and diversion lin

Method used

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  • Geochemistry measuring method for pouring and acquiring residual oil parameter characteristic and relationship of mainstream line and shunt line oil reservoir
  • Geochemistry measuring method for pouring and acquiring residual oil parameter characteristic and relationship of mainstream line and shunt line oil reservoir
  • Geochemistry measuring method for pouring and acquiring residual oil parameter characteristic and relationship of mainstream line and shunt line oil reservoir

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specific Embodiment approach 1

[0024] Specific implementation mode 1: The specific process of the geochemical determination method for the characteristics and relationship of the remaining oil parameters of the injection-production main line and the diversion line reservoir described in this implementation mode is as follows:

[0025] a. Collect multiple oil sand samples from core inspection wells on the main line and diversion line of polymer flooding oil field development respectively, and measure the remaining oil saturation, oil displacement efficiency, remaining oil viscosity, and permeability of the oil sand samples respectively , Determination of porosity parameters;

[0026] b. According to the remaining oil saturation, oil displacement efficiency, remaining oil viscosity, permeability, and porosity parameter data of the main stream and streamline reservoirs obtained in step a, respectively, calculate the remaining oil reservoirs of the main stream and streamline of oil Mobility parameters, and dete...

specific Embodiment approach 2

[0043] Embodiment 2: This embodiment is a specific example of the geochemical measurement method for the remaining oil parameter characteristics and relationship of the injection-production mainline and diversion line reservoirs described in Embodiment 1.

[0044] This embodiment is a geochemical measurement method for the characteristics and relationship of the remaining oil parameters of the polymer flooding injection-production main line and the split flow line in Sartu Oilfield in the northern Songliao Basin.

[0045] The following is a brief introduction to the Saertu Oilfield in the northern part of the Songliao Basin: the western part of the third north area of ​​the Saertu Oilfield was put into development in 1964. The basic well pattern is the two sets of main oil layers in Saertu and Putaohua, and the water injection well pattern is adopted. Development, two infill adjustments in 1981 (Pu 2, Gaotaizi) and 1993 (Sartu, Pu 2, Gaotaizi); in 1997, polymer flooding was carri...

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Abstract

The invention relates to method for measuring geochemical parameter characteristics and relation of remaining oil of an oil reservoir between a main stream line and a dividing steam line for injection and production, which relates to the field of crude oil development. The method solves the problems that the prior physical simulation method cannot obtain the parameters and the relation thereof of the actual remaining oil saturation on the main stream line and the dividing steam line. The method comprises the following steps: obtaining the parameters of the remaining oil saturation, oil displacement efficiency, remaining oil viscosity, permeability and porosity through measuring an oil sand sample of a core-taking inspection shaft on the main stream line and the dividing steam line of oilfield development; obtaining the fluidity parameters and the geochemical characteristics of remaining oil layers of the main stream line and the dividing steam line; respectively ensuring the relation between the geochemical parameters of the remaining oil of the main stream line and the dividing steam line according to the relativity analysis of the obtained parameters; and ensuring the geochemical parameter characteristics and the relation of the remaining oil of the main stream line and the dividing steam line for the injection and the production, and further obtaining the variation tendency. The method has an important significance on recognizing the distribution rule of the remaining oil of the oil reservoir of the main stream line and the dividing steam line, making a remaining oil development proposal, and improving the recovery ratio of the crude oil.

Description

technical field [0001] The invention relates to the field of crude oil development, in particular to a geochemical method for measuring the characteristics of remaining oil parameters and their relationship in reservoirs of injection-production main line and diversion line. Background technique [0002] Oilfield crude oil development is divided into primary oil recovery, secondary oil recovery, and tertiary oil recovery according to the development method. In secondary oil recovery or tertiary oil recovery, water or chemical agents should be injected into the ground through the injection-production well group to increase oil recovery and enhance oil recovery. , What are the characteristics of the remaining oil parameters of the reservoir such as the remaining oil saturation, oil displacement efficiency, remaining oil viscosity and mobility, and remaining oil properties on the main line and split line between the injection well and the production well (production well)? How d...

Claims

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Application Information

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IPC IPC(8): E21B49/00G01V9/00
Inventor 张居和方伟冯子辉高峰白树庆郭伟胡云娣姜淑杰
Owner DAQING OILFIELD CO LTD
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