CN112766622B - New production gas well reservoir damage evaluation method - Google Patents
New production gas well reservoir damage evaluation method Download PDFInfo
- Publication number
- CN112766622B CN112766622B CN201911001683.1A CN201911001683A CN112766622B CN 112766622 B CN112766622 B CN 112766622B CN 201911001683 A CN201911001683 A CN 201911001683A CN 112766622 B CN112766622 B CN 112766622B
- Authority
- CN
- China
- Prior art keywords
- pressure
- gas well
- target reservoir
- reservoir
- well
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000006378 damage Effects 0.000 title claims abstract description 47
- 238000011156 evaluation Methods 0.000 title description 5
- 230000003068 static effect Effects 0.000 claims abstract description 21
- 238000012360 testing method Methods 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 14
- 208000027418 Wounds and injury Diseases 0.000 claims description 10
- 208000014674 injury Diseases 0.000 claims description 10
- 238000011084 recovery Methods 0.000 claims description 4
- 238000002474 experimental method Methods 0.000 abstract description 6
- 238000011161 development Methods 0.000 abstract description 2
- 238000005206 flow analysis Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 61
- 239000010410 layer Substances 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 6
- 239000012530 fluid Substances 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
- G06Q10/063—Operations research, analysis or management
- G06Q10/0639—Performance analysis of employees; Performance analysis of enterprise or organisation operations
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
- G06Q50/02—Agriculture; Fishing; Mining
Abstract
The invention relates to the field of oil and gas field development, in particular to a method for evaluating damage to a newly produced gas well reservoir, which comprises the steps of obtaining the original stratum pressure of a gas well target reservoir and the bottom-hole static pressure after gas well completion, and obtaining the actual pressure loss value of the target reservoir by making a difference between the bottom-hole static pressure and the original stratum pressure; determining a target reservoir theoretical pressure loss value at the initial production stage according to the starting pressure gradient of the target reservoir and the gas well gas release radius at the initial production stage; and (5) making a difference between the actual pressure loss value and the theoretical pressure loss value of the target reservoir to obtain the pressure loss of the target reservoir damage. The pressure loss of target reservoir damage can be obtained by utilizing the existing pressure test data of the gas well and simple reservoir flow analysis, so that the reservoir damage degree of the newly-produced gas well is quantitatively evaluated, additional well test operation or complex experiments are avoided, and the reservoir damage degree is obtained more simply, conveniently, rapidly and economically.
Description
Technical Field
The invention relates to the field of oil and gas field development, in particular to a method for evaluating damage to a reservoir of a newly produced gas well.
Background
Natural gas reservoirs generally have the characteristic of strong hydrophilicity, and in the operation processes of drilling, fracturing and the like, external working fluid is easy to enter the reservoir under the action of high capillary force and occupy a flow channel in a near-wellbore zone, so that the reservoir is damaged, the seepage capability of the reservoir is reduced, the gas production capability of a gas well is greatly restricted, and even the gas well cannot be produced normally.
Reservoir damage is one of the main reasons that affects the normal production of gas wells, and therefore, research on reservoir damage has been the focus of research by field engineers and researchers. And the evaluation of the damage degree of the reservoir is the basis of the research of the damage of the reservoir and the damage relief. Only through accurate evaluation of the damage degree of the reservoir, corresponding solutions can be formulated in a targeted manner, and the productivity of the gas well can be recovered.
Currently, existing reservoir damage evaluation methods mainly include two types: firstly, simulating permeability loss of a core after an external fluid enters through an indoor core experiment to evaluate the damage degree, wherein the method is completed through a complicated experiment, and is long in time consumption, and meanwhile, the obtained result can only represent reservoir loss under experimental conditions and cannot accurately and quantitatively represent actual fluid invasion conditions and actual damage degree of a reservoir; secondly, the well testing is carried out after the well completion of the gas well, and the damage degree of the reservoir of the gas well is evaluated through interpretation of well testing data.
Disclosure of Invention
The invention aims to provide a method for evaluating the damage of a newly-produced gas well reservoir, which is used for solving the problems of complex and long time consumption of the existing method for evaluating the damage of the gas well reservoir.
In order to achieve the above purpose, the invention provides a method for evaluating damage to a reservoir of a newly produced gas well, which comprises the following steps:
1) Acquiring the original stratum pressure of a target reservoir of a gas well and the bottom static pressure of the gas well after completion of the gas well, and obtaining an actual pressure loss value of the target reservoir by making a difference between the bottom static pressure and the original stratum pressure;
2) Determining a target reservoir theoretical pressure loss value at the initial production stage according to a starting pressure gradient of the target reservoir and a gas release radius of the gas well at the initial production stage;
3) And (3) obtaining the pressure loss of the target reservoir injury by making a difference between the actual pressure loss value and the theoretical pressure loss value of the target reservoir, and determining the reservoir injury degree of the newly-produced gas well according to the pressure loss of the target reservoir injury.
The method has the beneficial effects that reservoir pressure loss caused by reservoir damage can be calculated by utilizing the original stratum pressure, the bottom hole static pressure, the starting pressure gradient and the air leakage radius of the target reservoir, namely, the reservoir pressure loss caused by reservoir damage of the target reservoir can be obtained by utilizing the existing pressure test data of the gas well and simple reservoir flow analysis, the reservoir damage degree of the newly put-into-production gas well is quantitatively evaluated, additional well test operation or complex experiments are avoided, and the reservoir damage degree is obtained more simply, more rapidly and economically.
Further, when no production well exists around, in order to simply and accurately obtain the original stratum pressure of the target reservoir, if no production well exists in the set range of the gas well, the stratum initial pressure value measured by the earlier exploratory well in the same flow unit as the gas well is adopted as the original stratum pressure.
Further, when a production well exists in the same flow unit, in order to simply and accurately obtain the original stratum pressure of the target reservoir, if the production well exists in the flow unit where the gas well exists, recovering well test data according to the pressure of the production well to obtain the original stratum pressure of the target reservoir of the gas well.
Further, if a plurality of production wells are arranged in the flow unit where the gas well is located, the original stratum pressure of the target reservoir of each production well is obtained according to the pressure recovery test data of each production well, the original stratum pressure of the target reservoir of each production well is averaged, and the average value is taken as the original stratum pressure of the target reservoir of the gas well. When multiple production wells are present, averaging may more accurately represent the original formation pressure of the target reservoir.
Further, in order to simply, quickly and accurately obtain the starting pressure gradient, the starting pressure gradient of the target reservoir is obtained by testing the actual core of the gas well or the core which is identical to the actual core of the gas well under the reservoir condition.
Further, in order to make the static pressure at the bottom of the well more accurate, the static pressure at the bottom of the well is obtained by measuring the pressure in the middle of the target reservoir.
Drawings
FIG. 1 is a flow chart of a method of evaluating reservoir damage of a newly produced gas well of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings.
The invention provides a method for evaluating damage to a reservoir of a newly produced gas well, which comprises the following steps:
1) And obtaining the original stratum pressure of the target reservoir of the gas well and the bottom static pressure after the gas well is completed, and obtaining the actual pressure loss value of the target reservoir by making a difference between the bottom static pressure and the original stratum pressure.
In this embodiment, the static bottom pressure of the target reservoir after the completion of the gas well is obtained by measuring the pressure in the middle of the target reservoir. When the original stratum pressure of the target reservoir of the gas well is calculated, if the gas well is a new oil and gas reservoir block or no production well exists in the range of the gas well leakage radius multiplied by 2, adopting a stratum initial pressure value measured by an earlier exploratory well in the same flow unit as the gas well as the original stratum pressure of the target reservoir of the gas well; and if the production well exists in the flow unit where the gas well is located, recovering well test data according to the pressure of the production well to obtain the original stratum pressure of the target reservoir of the gas well. As other embodiments, the raw formation pressure of the gas well target reservoir may also be obtained according to other prior art means.
In addition, if a plurality of production wells are arranged in the flow unit where the gas well is located, the formation pressure of the target reservoir is obtained according to the pressure recovery test data of each production well, the formation pressure obtained by each production well is averaged, and the average value is used as the original formation pressure of the target reservoir of the gas well, so that the true original formation pressure of the gas well can be expressed more accurately.
2) And determining a target reservoir theoretical pressure loss value at the initial stage of production according to the starting pressure gradient of the target reservoir and the gas release radius of the gas well at the initial stage of production.
The starting pressure gradient of the target reservoir is obtained by testing an actual core of the gas well or a core which is identical to the actual core of the gas well under reservoir conditions, wherein the reservoir conditions comprise pressure, temperature, water saturation and the like. The gas release radius of the target reservoir in the initial production period of the gas well can be calculated by the prior technical means, and the initial production period refers to within one month of production.
3) The actual pressure loss value of the target reservoir is differed from the theoretical pressure loss value to obtain the pressure loss caused by the damage of the target reservoir, and the damage degree of the reservoir of the newly produced gas well can be quantitatively evaluated.
The steps are suitable for single-layer developed gas wells and multi-layer developed gas wells, for the multi-layer developed gas wells, the bottom hole static pressure and the starting pressure gradient can be tested for each layer respectively, the actual pressure loss and the theoretical pressure loss of the reservoir layer of each layer are calculated, and the damage degree of the reservoir layer of each layer is further obtained.
The invention provides the judging process of the injury degree of two groups of specific gas wells:
after the well completion of a certain tight gas reservoir X1 well in the E basin is completed, the static pressure at the bottom of the well is tested by a downward pressure gauge, the pressure gauge is 3017m down to the middle part of the target reservoir, and the static pressure at the bottom of the well is tested to be 25.75MPa. And analyzing the pressure recovery well test data of the production well in the same flow unit of the X1 well to obtain the original stratum pressure of the target reservoir layer of 27.48MPa. Through an indoor experiment, the starting pressure gradient of the target reservoir is tested to be 0.018MPa/m, and the gas leakage radius of the X1 well at the initial production stage under the reservoir condition is calculated to be 76m.
Therefore, the actual pressure loss value of the target reservoir is 1.73MPa, the theoretical pressure loss value of the target reservoir is 1.37MPa, and the actual stratum pressure loss of the X1 well caused by reservoir damage is only 0.36MPa higher than the theoretical pressure loss by 26% when the actual stratum pressure loss is obtained by difference, so that the reservoir damage degree of the X1 well is weaker.
After the well completion of a certain tight gas reservoir X2 well in the E basin is completed, the static pressure at the bottom of the well is tested by a downward pressure gauge, the pressure gauge is 3155m down to the middle part of the target reservoir, and the static pressure at the bottom of the well is 19.81MPa. The X2 well is a first production well in the same flow unit, and the initial stratum pressure value measured by the earlier exploratory well in the same flow unit is 28.44MPa, namely the original stratum pressure of the target reservoir of the X2 well. Through an indoor experiment, the starting pressure gradient of the target reservoir is tested to be 0.023MPa/m, and the X2 well gas leakage radius at the initial production stage under the reservoir condition is calculated to be 58m.
Therefore, the actual pressure loss value of the target reservoir is 8.63MPa, the theoretical pressure loss value of the target reservoir is 1.33MPa, and the actual stratum pressure loss of the X2 well caused by reservoir damage is 7.3MPa higher than the theoretical pressure loss by as high as 549 percent, so that the reservoir damage degree of the X2 well is serious.
The above gives a specific embodiment to which the present invention relates, but the present invention is not limited to the described embodiment. Under the thought of the invention, the technical means in the embodiment are changed, replaced and modified in a manner which is easily thought to a person skilled in the art, and the technical means have basically the same functions as the corresponding technical means in the invention, and the aim of the invention is also basically the same, so that the technical scheme is formed by fine tuning the embodiment, and the technical scheme still falls within the protection scope of the invention.
Claims (3)
1. The method for evaluating the damage of the newly produced gas well reservoir is characterized by comprising the following steps of:
1) Acquiring the original stratum pressure of a target reservoir of a gas well and the bottom static pressure of the gas well after completion of the gas well, and obtaining an actual pressure loss value of the target reservoir by making a difference between the bottom static pressure and the original stratum pressure;
2) Determining a target reservoir theoretical pressure loss value at the initial production stage according to a starting pressure gradient of the target reservoir and a gas release radius of the gas well at the initial production stage;
3) The actual pressure loss value of the target reservoir is differed from the theoretical pressure loss value to obtain the pressure loss of the target reservoir injury, and the reservoir injury degree of the newly produced gas well is determined according to the pressure loss of the target reservoir injury;
if no production well exists in the set range of the gas well, adopting a stratum initial pressure value measured by a previous exploratory well in the same flow unit as the gas well as the original stratum pressure; the starting pressure gradient of the target reservoir is obtained by testing an actual core of the gas well or a core which is identical to the actual core of the gas well under the condition of the target reservoir; the static pressure at the bottom of the well is obtained by measuring the pressure in the middle of the target reservoir.
2. The method for evaluating the damage of the newly produced gas well reservoir is characterized by comprising the following steps of:
1) Acquiring the original stratum pressure of a target reservoir of a gas well and the bottom static pressure of the gas well after completion of the gas well, and obtaining an actual pressure loss value of the target reservoir by making a difference between the bottom static pressure and the original stratum pressure;
2) Determining a target reservoir theoretical pressure loss value at the initial production stage according to a starting pressure gradient of the target reservoir and a gas release radius of the gas well at the initial production stage;
3) The actual pressure loss value of the target reservoir is differed from the theoretical pressure loss value to obtain the pressure loss of the target reservoir injury, and the reservoir injury degree of the newly produced gas well is determined according to the pressure loss of the target reservoir injury;
if a production well exists in the flow unit where the gas well is located, recovering well test data according to the pressure of the production well to obtain the original stratum pressure of a target reservoir of the gas well; the starting pressure gradient of the target reservoir is obtained by testing an actual core of the gas well or a core which is identical to the actual core of the gas well under the condition of the target reservoir; the static pressure at the bottom of the well is obtained by measuring the pressure in the middle of the target reservoir.
3. The method for evaluating the damage to the reservoir of the newly produced gas well according to claim 2, wherein if a plurality of production wells are arranged in a flow unit where the gas well is arranged, the original stratum pressure of the target reservoir of each production well is obtained according to the pressure recovery test data of each production well, the original stratum pressure of the target reservoir of each production well is averaged, and the average value is taken as the original stratum pressure of the target reservoir of the gas well.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911001683.1A CN112766622B (en) | 2019-10-21 | 2019-10-21 | New production gas well reservoir damage evaluation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911001683.1A CN112766622B (en) | 2019-10-21 | 2019-10-21 | New production gas well reservoir damage evaluation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112766622A CN112766622A (en) | 2021-05-07 |
| CN112766622B true CN112766622B (en) | 2024-04-05 |
Family
ID=75691713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911001683.1A Active CN112766622B (en) | 2019-10-21 | 2019-10-21 | New production gas well reservoir damage evaluation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112766622B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201780251U (en) * | 2010-07-26 | 2011-03-30 | 长江大学 | Dynamic contamination assessing experimental instrument for coal seam core under high-temperature and high-pressure conditions |
| CN104232035A (en) * | 2013-06-20 | 2014-12-24 | 中国石油化工股份有限公司 | Drilling fluid suitable for low-permeability oil/gas reservoir and preparation method of drilling fluid |
| US9267068B1 (en) * | 2015-02-11 | 2016-02-23 | China University Of Petroleum (Beijing) | Protecting agent composition for high/ultra-high permeability reservoirs and drilling fluid and use thereof |
| WO2016041189A1 (en) * | 2014-09-19 | 2016-03-24 | 杨顺伟 | Method for evaluating shale gas reservoir and seeking desert area |
| CN105649616A (en) * | 2015-12-29 | 2016-06-08 | 中国石油天然气股份有限公司 | Method for evaluating gas well dynamic reserve under low-permeability gas reservoir downhole throttling condition |
| CN106522931A (en) * | 2015-09-14 | 2017-03-22 | 中国石油化工股份有限公司 | Injected water damage evaluation method under simulated stratum condition |
| CN106522933A (en) * | 2016-11-19 | 2017-03-22 | 西南石油大学 | Evaluation device and evaluation method for simulating damage of cementing slurry to reservoirs |
| CN106761613A (en) * | 2015-11-24 | 2017-05-31 | 中国石油化工股份有限公司 | A kind of well testing of carbon dioxide displacement leading edge determines method |
| CN107503717A (en) * | 2017-09-14 | 2017-12-22 | 中国海洋石油总公司 | A kind of evaluation method of gravel filling sand prevention reservoir protection effect |
| CN107884261A (en) * | 2016-09-29 | 2018-04-06 | 中国石油化工股份有限公司 | A kind of strength sensitive evaluation method of shale reservoir |
| CN108776093A (en) * | 2018-05-18 | 2018-11-09 | 中国海洋石油集团有限公司 | A kind of drilling fluid damage degree evaluation method based on high temperature and pressure gas reservoir evaluation |
| CN108801870A (en) * | 2018-03-26 | 2018-11-13 | 中国石油大学(北京) | It is a kind of can under simulation stratum condition reservoir rock imbibition experimental provision and method |
| DE102017008406A1 (en) * | 2017-09-07 | 2019-03-07 | Heuft Systemtechnik Gmbh | Inspection device with color illumination |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017136663A1 (en) * | 2016-02-04 | 2017-08-10 | Ecolab Usa Inc. | Removal of hydrate inhibitors from waste streams |
| WO2019083955A1 (en) * | 2017-10-23 | 2019-05-02 | Philip Teague | Methods and means for measurement of the water-oil interface within a reservoir using an x-ray source |
-
2019
- 2019-10-21 CN CN201911001683.1A patent/CN112766622B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201780251U (en) * | 2010-07-26 | 2011-03-30 | 长江大学 | Dynamic contamination assessing experimental instrument for coal seam core under high-temperature and high-pressure conditions |
| CN104232035A (en) * | 2013-06-20 | 2014-12-24 | 中国石油化工股份有限公司 | Drilling fluid suitable for low-permeability oil/gas reservoir and preparation method of drilling fluid |
| WO2016041189A1 (en) * | 2014-09-19 | 2016-03-24 | 杨顺伟 | Method for evaluating shale gas reservoir and seeking desert area |
| US9267068B1 (en) * | 2015-02-11 | 2016-02-23 | China University Of Petroleum (Beijing) | Protecting agent composition for high/ultra-high permeability reservoirs and drilling fluid and use thereof |
| CN106522931A (en) * | 2015-09-14 | 2017-03-22 | 中国石油化工股份有限公司 | Injected water damage evaluation method under simulated stratum condition |
| CN106761613A (en) * | 2015-11-24 | 2017-05-31 | 中国石油化工股份有限公司 | A kind of well testing of carbon dioxide displacement leading edge determines method |
| CN105649616A (en) * | 2015-12-29 | 2016-06-08 | 中国石油天然气股份有限公司 | Method for evaluating gas well dynamic reserve under low-permeability gas reservoir downhole throttling condition |
| CN107884261A (en) * | 2016-09-29 | 2018-04-06 | 中国石油化工股份有限公司 | A kind of strength sensitive evaluation method of shale reservoir |
| CN106522933A (en) * | 2016-11-19 | 2017-03-22 | 西南石油大学 | Evaluation device and evaluation method for simulating damage of cementing slurry to reservoirs |
| DE102017008406A1 (en) * | 2017-09-07 | 2019-03-07 | Heuft Systemtechnik Gmbh | Inspection device with color illumination |
| CN107503717A (en) * | 2017-09-14 | 2017-12-22 | 中国海洋石油总公司 | A kind of evaluation method of gravel filling sand prevention reservoir protection effect |
| CN108801870A (en) * | 2018-03-26 | 2018-11-13 | 中国石油大学(北京) | It is a kind of can under simulation stratum condition reservoir rock imbibition experimental provision and method |
| CN108776093A (en) * | 2018-05-18 | 2018-11-09 | 中国海洋石油集团有限公司 | A kind of drilling fluid damage degree evaluation method based on high temperature and pressure gas reservoir evaluation |
Non-Patent Citations (1)
| Title |
|---|
| 苏东地区气藏水锁机理分析及水锁判识;陈存良;梁艳;刘向前;南学龙;顾聪;;石油化工应用;20190525(第05期);第60-66页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112766622A (en) | 2021-05-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104790926B (en) | A kind of fracture-pore reservoir waterflooding development effect evaluation method | |
| CN105160414B (en) | Predict the method and device of full oil reservoir producing region type | |
| CN107462936B (en) | Utilize the method for pressure monitoring Data Inversion low permeability reservoir non-Darcy percolation law | |
| CN112343587A (en) | Ultra-low permeability reservoir dominant seepage channel identification and characterization method | |
| CN110656915B (en) | Shale gas multi-section fracturing horizontal well multi-working-system productivity prediction method | |
| CN108867716B (en) | Water pumping communication test method for bottom-falling type waterproof curtain | |
| CN105952427A (en) | Method for predicting and evaluating low permeability oil reservoir water-injection induced cracks | |
| CN109707373B (en) | Horizontal well-vertical well bidirectional tracing method based on fluid production profile test and inter-well tracing | |
| CN105930932A (en) | Gas index-based shale-gas-layer standardized open-flow capacity obtaining method | |
| CN112211627B (en) | Selection method of low-permeability gas reservoir interference well testing test well | |
| CN105021513A (en) | Full-size sand-prevention high-temperature and high-pressure steam simulation system | |
| RU2318993C1 (en) | Method for watered oil pool development | |
| CN105678082B (en) | Double-pressure drop method for identifying type of oil-gas well acid fracturing communication reservoir | |
| CN112766622B (en) | New production gas well reservoir damage evaluation method | |
| CN112414918B (en) | Method and device for judging sand body connectivity between injection wells and production wells of low-permeability reservoir | |
| CN112257349B (en) | Method for judging whether tight sandstone movable water-gas reservoir gas well has development value | |
| CN109490510B (en) | Method for measuring hydraulic punching influence radius based on cross-layer drilling gas emission characteristics | |
| CN110188388B (en) | Method for evaluating glutenite reservoir physical property by utilizing nuclear magnetic pressure physical property index | |
| CN114060003B (en) | Characterization method for inter-well connectivity of offshore complex fault block oil reservoir | |
| CN115422857A (en) | Estimation method for gas emission quantity of tunnel face of non-coal gas tunnel | |
| CN106948800B (en) | A kind of staged fracturing of horizontal well construction diagnostic method of working condition | |
| CN107291968B (en) | Fracturing segment selection method and system | |
| CN115929279B (en) | Plate analysis method for judging interference intensity under mining balance | |
| CN111487234B (en) | Method for judging whether reservoir contains water or not by utilizing three-dimensional quantitative fluorescence spectrogram characteristics | |
| CN112392477B (en) | Single well potential rapid prediction method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |