CN111738584A - Method for analyzing productivity of oil well applied to mine field - Google Patents
Method for analyzing productivity of oil well applied to mine field Download PDFInfo
- Publication number
- CN111738584A CN111738584A CN202010546184.7A CN202010546184A CN111738584A CN 111738584 A CN111738584 A CN 111738584A CN 202010546184 A CN202010546184 A CN 202010546184A CN 111738584 A CN111738584 A CN 111738584A
- Authority
- CN
- China
- Prior art keywords
- well
- productivity
- oil
- production
- analyzing
- 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.)
- Granted
Links
- 239000003129 oil well Substances 0.000 title claims abstract description 103
- 238000000034 method Methods 0.000 title claims abstract description 48
- 230000008859 change Effects 0.000 claims abstract description 71
- 238000004458 analytical method Methods 0.000 claims abstract description 46
- 238000011161 development Methods 0.000 claims abstract description 33
- 238000007405 data analysis Methods 0.000 claims abstract description 3
- 238000004519 manufacturing process Methods 0.000 claims description 156
- 239000003921 oil Substances 0.000 claims description 65
- 230000009467 reduction Effects 0.000 claims description 54
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 51
- 238000012423 maintenance Methods 0.000 claims description 45
- 238000002347 injection Methods 0.000 claims description 33
- 239000007924 injection Substances 0.000 claims description 33
- 238000007726 management method Methods 0.000 claims description 32
- 230000000694 effects Effects 0.000 claims description 31
- 238000011282 treatment Methods 0.000 claims description 30
- 230000007423 decrease Effects 0.000 claims description 20
- 238000011084 recovery Methods 0.000 claims description 20
- 230000001965 increasing effect Effects 0.000 claims description 18
- 230000008901 benefit Effects 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 12
- 239000010410 layer Substances 0.000 claims description 11
- 238000005457 optimization Methods 0.000 claims description 11
- 238000004364 calculation method Methods 0.000 claims description 10
- 239000004576 sand Substances 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 7
- 230000006872 improvement Effects 0.000 claims description 5
- 230000000630 rising effect Effects 0.000 claims description 5
- 230000007774 longterm Effects 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 230000000087 stabilizing effect Effects 0.000 claims description 4
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 230000006866 deterioration Effects 0.000 claims description 3
- 238000005553 drilling Methods 0.000 claims description 3
- 239000011229 interlayer Substances 0.000 claims description 3
- 230000008439 repair process Effects 0.000 claims description 3
- 238000013517 stratification Methods 0.000 claims description 3
- 238000012546 transfer Methods 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 239000000295 fuel oil Substances 0.000 claims description 2
- 238000005065 mining Methods 0.000 claims 14
- 230000005484 gravity Effects 0.000 claims 1
- 230000000638 stimulation Effects 0.000 claims 1
- 238000010224 classification analysis Methods 0.000 abstract description 2
- 238000000605 extraction Methods 0.000 description 6
- 230000001174 ascending effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Images
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
- G06Q10/067—Enterprise or organisation modelling
-
- 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—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
- G06Q50/02—Agriculture; Fishing; Forestry; Mining
Landscapes
- Business, Economics & Management (AREA)
- Engineering & Computer Science (AREA)
- Human Resources & Organizations (AREA)
- Strategic Management (AREA)
- Economics (AREA)
- Tourism & Hospitality (AREA)
- Theoretical Computer Science (AREA)
- Entrepreneurship & Innovation (AREA)
- General Physics & Mathematics (AREA)
- Marketing (AREA)
- General Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Animal Husbandry (AREA)
- Operations Research (AREA)
- Game Theory and Decision Science (AREA)
- Development Economics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Quality & Reliability (AREA)
- Marine Sciences & Fisheries (AREA)
- Mining & Mineral Resources (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Primary Health Care (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The invention provides a method for analyzing the productivity of an applied oil well in a mine field, which comprises the following steps: step 1, establishing an oil well productivity analysis model and making a chart; step 2, determining the selection area and the analysis time for capacity analysis; step 3, calculating the oil well productivity, and carrying out data analysis according to the plate model; step 4, finding out variables in the capacity change, putting the variables into an analysis chart, and calculating the capacity change amount of each capacity; and 5, developing productivity analysis, finding out main factors influencing the productivity change, and making corresponding adjustment countermeasures. The method for analyzing the oil well productivity applied to the mine field can be used for carrying out analysis on the single-well variable productivity of the oil well of a development layer system or a development unit, analyzing main factors restricting the productivity change in the stage, finding out a main adjustment direction for improving the productivity of the development layer system or the development unit, and forming a single-well productivity classification analysis technical route suitable for different oil reservoir types and different development units.
Description
Technical Field
The invention relates to the technical field of oil field development, in particular to a method for analyzing the productivity of an oil well applied to a mine field.
Background
The productivity of the oil well refers to the production capacity or oil production capacity of the oil well when the oil well works at full-time rate (the whole day is driven to produce for 24 hours), and the unit is t/d, and the productivity is used for depicting and representing the injection and production conditions and the development effect of the oil field.
At present, the oil well productivity analysis in a mine field mainly focuses on the macroscopic factors such as the oil reservoir understanding degree, the crude oil physical properties, the oil field exploitation strategy and the like, is suitable for the production energy construction and planning, and has poor adaptability to the dynamic management work of a guidance field. One of the core tasks of oil field development is to keep the oil well productivity stable, find the root cause of the oil well productivity change in time in the production of a mine field, and make a corresponding adjustment strategy, which is one of the important tasks for keeping the oil field stable development, so that a productivity analysis method capable of closely reflecting the actual production situation of the mine field is urgently needed to guide the dynamic management work such as injection and production improvement, injection and production adjustment, measure optimization, working condition optimization, problem well treatment and the like in the production of the mine field.
Therefore, a new method for analyzing the productivity of the oil well applied to the mine field is invented, and the technical problems are solved.
Disclosure of Invention
The invention aims to provide a method for analyzing the productivity of an oil well applied to a mine field suitable for well groups, development strata, oil reservoir types and development units, which can finely analyze the cause of the productivity change of each single well and clearly find out one or more main factors influencing the productivity change.
The purpose of the invention can be realized by the following technical measures that the method for analyzing the productivity of the applied oil well in the mine field comprises the following steps: step 1, establishing an oil well productivity analysis model and making a chart; step 2, determining the selection area and the analysis time for capacity analysis; step 3, calculating the oil well productivity, and carrying out data analysis according to the plate model; step 4, finding out variables in the capacity change, putting the variables into an analysis chart, and calculating the capacity change amount of each capacity; and 5, developing productivity analysis, finding out main factors influencing the productivity change, and making corresponding adjustment countermeasures.
The object of the invention can also be achieved by the following technical measures:
in step 1, an oil well productivity analysis model is established, which comprises three classes 57 of small items, and three classes of a new well, a measure and an old well are determined according to the change of a production horizon and production time, wherein codes are A, B, C respectively.
In the step 1, new well throwing production energy (A) analyzes the change of the production capacity of the new well throwing in the current year, wherein the production capacity rising (A1) is divided into 2 items of new well throwing (A1) and new well increasing (A1); the productivity decline (A2) category is subdivided into 2 items of new well shut-in (A2) and new well decline (A2), the change conditions of the new well replacement capability and the new well production capability in the current year are analyzed, and the yield increasing, stable production capability and decline rule of new well input are reflected.
In the step 1, the capacity change of the measure well in the year is analyzed by the capacity of the measure well (B), wherein the capacity rise (B1) is divided into 3 items of measure well opening (B1), measure production increase (B1) and measure improvement (B1); the productivity decline (B2) category is subdivided into 3 items of measure production stop (B2), measure decrement (B2) and measure change (B2), the replacement capability of the measure well in the current year, the decline condition of the measure well and the production capability of the measure well changed into the changed well across the development layer series are analyzed, and the yield increase, the yield stabilizing capability and the decline rule of the measure well in the current year are reflected.
In step 1, the capacity variation of the old well is analyzed by the capacity (C) of the production horizon unchanged well, and is divided into capacity increase (C1), capacity decrease (C2) and regular variation (C3).
In the step 1, the capacity-increasing old well (C1) is divided into four categories of well opening (C1-1), injection-production adjustment effect (C1-2), working condition well condition management (C1-3) and maintenance well (C1-4), and the capacity-increasing rule brought by the management of oil reservoirs, shafts, wells and the like is reflected.
In the step 1, the old well opening (C1-1) is subdivided into 2 items of maintenance well opening (C1-1) and direct well opening (C1-1), which reflect the capacity rise brought by the increase of the well opening number and evaluate the utilization effect and benefit of the old well.
In the step 1, the injection and production adjustment effect (C1-2) is subdivided into 6 items of water injection direction increasing (C1-2), injection and production allocation (C1-2), water shutoff profile control (C1-2), well heavy stratification (C1-2), problem well treatment (C1-2) and under-injection treatment (C1-2), which reflect the productivity increase brought by each work of injection and production adjustment and are used for evaluating the effect and benefit of the injection and production adjustment work.
In the step 1, the working condition well condition management (C1-3) is divided into 3 items of well condition treatment (C1-3), working condition treatment (C1-3) and parameter optimization (C1-3), which reflect the productivity recovery brought by casing treatment, underground tool repair and parameter optimization and are used for evaluating the effect and benefit of shaft treatment.
In the step 1, the maintenance well (C1-4) is divided into 2 items of maintenance recovery (C1-4) and maintenance production increase (C1-4), wherein the production capacity rise in 30 days after the well is opened is the maintenance recovery; and the yield is increased after the well is maintained and opened for 30 days, and the method is used for evaluating the recovery effect of the maintenance well.
In the step 1, the old well with reduced productivity (C2) is divided into nine categories of well shut-in (C2-1), imperfect well pattern (C2-2), unbalanced injection and production relations (C2-3), water well failure (C2-4), reservoir factors (C2-5), well condition and working condition influences (C2-6), maintenance influences (C2-7), daily management (C2-8) and heavy oil tertiary recovery (C2-9).
In the step 1, the old well shut-in production capacity (C2-1) analyzes the productivity influenced by the well shut-in of the oil well, and the yield is reduced by 6 items including oil well transfer (C2-1), engineering factor shut-in (C2-1), sleeve failure shut-in (C2-1), low benefit shut-in (C2-1), adjacent well drilling (operation) shut-in (C2-1), and other factors (C2-1).
In the step 1, the productivity reduction caused by the imperfect well pattern (C2-2) is analyzed, the productivity influenced by the poor perfection degree of the well pattern is analyzed, and the productivity comprises 5 items of no perfect potential (C2-2), no perfect potential (C2-2), one-way effect no perfect potential (C2-2), one-way effect perfect potential (C2-2) and bottom water propulsion (C2-2), the productivity change of the imperfect oil well of the well pattern is analyzed, and the influence of the current well pattern adaptability on the productivity is reflected.
In the step 1, the capacity reduction (C2-3) caused by unbalanced injection-production relationship is analyzed, the capacity change caused by the change of the injection-production relationship is analyzed, the capacity change comprises 4 items including long-term streamline fixation (C2-3), rebounding after injection-production adjustment is effective (C2-3), streamline change (C2-3) and interlayer interference (C2-3), the capacity of the oil well influenced by three imbalances is analyzed, and the reduction of the production capacity of the unbalanced injection-production oil well in the stage is reflected.
In the step 1, the productivity reduction caused by the failure of the water well (C2-4) is analyzed, the productivity reduction caused by the untimely management of the water well is analyzed, 4 items including the damage of the water well casing (C2-4), the failure of tools (C2-4), the under-injection of the water well (C2-4) and the over-injection and yield reduction of the water well (C2-4) are analyzed, the oil well productivity influenced by the abnormal working condition of the water well and the change of water injection quality is analyzed, and the influence of the water well management on the production capacity of the oil well in the stage is reflected.
In the step 1, the productivity is reduced (C2-5) caused by reservoir factors, the productivity influenced by the change of the reservoir oil extraction index is analyzed, the productivity comprises oil thickness (C2-5) and sand production (C2-5) 2 types, and the change of the productivity of the oil well due to the oil thickness and the sand production is analyzed, so that a basis is provided for the next treatment.
In the step 1, the productivity reduction (C2-6) caused by the influence of the well condition working condition comprises 4 items of pump pipe leakage loss and yield reduction (C2-6), seal failure and yield reduction (C2-6), sleeve damage and yield reduction (C2-6) and parameter adjustment (C2-6), the changes of pipe column leakage, packer failure, casing deterioration and parameter adjustment oil well productivity are analyzed, and the productivity reduction brought by the working condition and the well condition change is reflected.
In the step 1, the capacity reduction brought by the maintenance influence (C2-7) comprises 2 items of maintenance waiting to be recovered (C2-7) and maintenance yield reduction (C2-7), wherein the capacity reduction is to be recovered in the maintenance within 30 days after the well is opened; and the productivity is reduced to maintenance yield reduction after the well is opened for 30 days, and the productivity reduction caused by the quality of maintenance operation is reflected.
In the step 1, the production capacity is reduced in daily management (C2-8), and the production capacity reduction caused by well washing influence (C2-8), water mixing influence (C2-8) and equipment maintenance (C2-8) in the daily management process is analyzed.
In the step 1, the yield of the thickened oil produced by the three-extraction is reduced (C2-9), and the production capacity reduction caused by the return of water in the three-extraction period (C2-9) and the decrement of the thermal recovery period of the thickened oil (C2-9) is analyzed.
In step 1, well productivity is changed regularly (C3), the yield is sufficient when other production is analyzed, and the oil well productivity with the change of the productivity rules comprises 2 items of fluctuation rising (C3-1) and rule decreasing (C3-1), and the change condition of the dynamic situation of the oil reservoir is reflected.
In step 2, the selected area and the analysis time for capacity analysis are determined, production wells of different development layers or different development units are selected as analysis objects, and the analysis time selects a time point to compare with the time point, or selects a time period to compare with the time period.
In step 3, oil well productivity calculation is carried out, wherein the oil well productivity calculation comprises the steps of arranging the production horizon of the oil well, working system, production time and working fluid level, calculating daily fluid production capacity, daily oil production capacity and comprehensive water content,
calculating the formula: daily liquid (oil) production capacity is the accumulated liquid (oil) production capacity/actual production days
Wherein the accumulated production liquid (oil) is the sum of the actual production liquid (oil) amounts in a stage, unit, t; actual days on stream is the actual days on stream in the phase, i.e. actual hours on stream/24, units, d.
According to the method for analyzing the oil well productivity, the influence of large categories is determined according to the capacity change condition, and then the influences are analyzed layer by layer, so that the root cause influencing the capacity change is found, and the analysis requirements of different technicians are met. An oil reservoir engineer can accurately control the dynamic situation of the oil reservoir, timely carry out oil reservoir management work such as well pattern improvement, water well treatment, streamline adjustment and the like, set the work load of measures for increasing and stabilizing the yield and ensure the dynamic stability of the oil reservoir; the process engineer can accurately analyze the influence of well conditions and shaft changes on productivity, and can timely carry out work such as working condition optimization, well condition treatment, field shaft management and the like, thereby ensuring the high efficiency and long acting of the production shaft; the production operation department can timely carry out coordination work of operation power according to the capacity condition, optimize the maintenance sequence of the operation well and improve the production time rate of the production well; the operating well management department analyzes the operating quality in time and ensures the recovery rate of the operating well; the operation management department can accurately optimize and adjust the investment direction of development funds by controlling the overall operation dynamics, and ensure the long-term and high-efficiency development and management.
Drawings
FIG. 1 is a flow chart of an embodiment of the method for analyzing oil well productivity in a mine site according to the present invention.
Detailed Description
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
The method for analyzing the productivity of the oil well applied to the mine field comprises the following steps:
step 1, establishing an oil well productivity analysis model, which comprises three classes of 57 small items;
and establishing an oil well productivity analysis model which comprises three classes of 57 small items.
According to the change of production position and production time, three categories of new well, measure and old well are determined, and the codes are A, B, C respectively.
The new well throwing production energy (A) mainly analyzes the capacity change of the new well throwing in the current year, wherein the production energy rising (A1) is divided into 2 items of new well throwing (A1) and new well increasing (A1); the productivity decline (A2) category is subdivided into 2 items of new well shut-in (A2) and new well decline (A2), the change conditions of the new well replacement capability and the new well production capability in the current year are analyzed, and the yield increasing, stable production capability and decline rule of new well input are reflected.
The capacity change of the measure well in the year is mainly analyzed, wherein the capacity rise (B1) is subdivided into 3 items of measure well opening (B1), measure production increase (B1) and measure improvement (B1); the productivity decline (B2) category is subdivided into 3 items of measure production stop (B2), measure decrement (B2) and measure change (B2), the measure well replacement capability, the measure well decrement condition and the production capability of the change-in and change-out well across the development layer system (development unit) in the current year are analyzed, and the yield increase, the yield stabilizing capability and the decrement rule of the measure well in the current year are reflected.
The old well capacity (C) mainly analyzes the capacity change of the unchanged well at the production horizon of the year and is divided into capacity increase (C1), capacity decrease (C2) and regular change (C3).
The productivity-increasing old well (C1) is divided into four categories of well opening (C1-1), injection-production adjustment effect (C1-2), working condition well condition management (C1-3) and maintenance well (C1-4), and reflects the productivity increasing rule brought by the management of oil reservoirs, shafts, wells and the like.
The old well opening (C1-1) is subdivided into 2 items of maintenance well opening (C1-1) and direct well opening (C1-1), which reflect the capacity rise caused by the increase of the well opening number and evaluate the utilization effect and benefit of the old well.
The injection and production adjustment effect (C1-2) is subdivided into 6 items of increasing the water injection direction (C1-2), injection and production allocation (C1-2), water shutoff and profile control (C1-2), well heavy stratification (C1-2), problem well treatment (C1-2 fifthly) and under-injection treatment (C1-2), which reflect the productivity increase brought by each work of injection and production adjustment and are used for evaluating the effect and benefit of the injection and production adjustment work.
The working condition well condition management (C1-3) is subdivided into 3 items of well condition treatment (C1-3), working condition treatment (C1-3) and parameter optimization (C1-3), reflects the recovery of productivity brought by casing treatment, underground tool repair and parameter optimization, and is used for evaluating the effect and benefit of shaft treatment.
The maintenance well (C1-4) is subdivided into 2 items of maintenance recovery (C1-4) and maintenance production increase (C1-4), wherein the production capacity rise in 30 days after the well is opened is maintenance recovery; and the yield is increased after the well is maintained and opened for 30 days, and the method is used for evaluating the recovery effect of the maintenance well.
The productivity-reducing old well (C2) is divided into nine categories, namely a well shut-in well (C2-1), an imperfect well pattern (C2-2), unbalanced injection-production relationship (C2-3), water well failure (C2-4), reservoir factors (C2-5), well condition working condition influence (C2-6), maintenance influence (C2-7), daily management (C2-8) and thickened oil triple recovery (C2-9).
The old well shut-in production energy (C2-1) mainly analyzes the productivity influenced by the well shut-in of the oil well, and comprises 6 items including oil well transfer (C2-1), engineering factor shut-in (C2-1), sleeve failure shut-in (C2-1), low benefit shut-in (C2-1), adjacent well drilling (operation) shut-in (C2-1), and other factor shut-in (C2-1), and the old well shut-in production energy (C2-1) mainly analyzes the oil wells stopped due to factors such as well network adjustment, underground pipe columns, poor benefit, production operation and the like, and reflects the reduction of the productivity brought by the well shut-in.
The productivity reduction (C2-2) caused by the imperfect well pattern mainly analyzes the productivity influenced by the poor perfection degree of the well pattern, including only 5 items of no perfect potential (C2-2), only perfect potential (C2-2), one-way effect no perfect potential (C2-2), one-way effect complete potential (C2-2) and bottom water propulsion (C2-2), mainly analyzes the productivity change of the imperfect oil well of the well pattern, and reflects the influence of the current well pattern adaptability on the productivity.
The method mainly analyzes the capacity reduction (C2-3) caused by unbalanced injection-production relationship, mainly analyzes the capacity change caused by the change of the injection-production relationship, comprises 4 items including long-term streamline fixation (C2-3), rebounding after injection-production adjustment is effective (C2-3), streamline change (C2-3) and interlayer interference (C2-3), mainly analyzes the capacity of an oil well influenced by three unbalanced fields, and reflects the reduction of the production capacity of an injection-production unbalanced oil well in a stage.
The yield reduction caused by the failure of the water well (C2-4) is mainly analyzed, the yield reduction caused by the untimely management of the water well is mainly analyzed, 4 items including the damage of the water well casing (C2-4), the failure of tools (C2-4), the under-injection of the water well (C2-4) and the over-injection and yield reduction of the water well (C2-4) are included, the yield of the oil well, which is influenced by the abnormal working condition of the water well and the change of water injection quality, of the water well is analyzed, and the influence of the water well management on the production capacity of the oil well in the.
The capacity reduction (C2-5) caused by reservoir factors is mainly used for analyzing the capacity influenced by the change of reservoir oil recovery index, including oil viscosity (C2-5) and sand production (C2-5) 2 types, and the change of the production capacity of the oil well due to the oil viscosity and the sand production is analyzed to provide a basis for the next treatment.
The productivity reduction (C2-6) caused by the influence of the well condition working condition comprises 4 items of pump pipe leakage loss and yield reduction (C2-6), seal failure and yield reduction (C2-6), sleeve damage and yield reduction (C2-6) and parameter adjustment (C2-6), and mainly analyzes the changes of pipe column leakage, packer failure, casing deterioration and parameter adjustment oil well productivity, and reflects the productivity reduction brought by the working condition and well condition changes.
The capacity is reduced due to the maintenance influence (C2-7), and the capacity is reduced to be recovered within 30 days after the well is opened (C2-7) and maintenance yield reduction (C2-7) 2 items; and the productivity is reduced to maintenance yield reduction after the well is opened for 30 days, and the productivity reduction caused by the quality of maintenance operation is reflected.
The production capacity of daily management is reduced (C2-8), and the production capacity reduction caused by well washing influence (C2-8), water mixing influence (C2-8) and equipment maintenance (C2-8) in the daily management process is mainly analyzed.
The yield of the thickened oil produced by the three-extraction is reduced (C2-9), and the reduction of the production capacity caused by the return of water contained in the three-extraction period (C2-9) and the decrement of the thermal extraction period of the thickened oil (C2-9) are mainly analyzed.
The well productivity changing regularly (C3) mainly analyzes the oil well productivity with sufficient production rate and regular change of productivity, and comprises 2 items of fluctuation rising (C3-1) and regular decrement (C3-1), and reflects the change condition of the dynamic situation of the oil reservoir.
An oil well productivity analysis chart is manufactured according to the method, and a subentry calculation template is established, wherein the subentry calculation template is shown in the following table:
TABLE 1 oil well productivity analysis template Table
Step 2, determining a selection area and analysis time for capacity analysis, selecting production wells of different development strata or different development units as analysis objects, and selecting time points and comparing the time points and the time periods in the analysis time;
step 3, carrying out oil well productivity calculation, wherein the oil well productivity calculation comprises the steps of arranging the production horizon of an oil well, working system, production time and working fluid level, calculating daily fluid production capacity, daily oil production capacity and comprehensive water content;
calculating the formula: daily liquid (oil) production capacity is the accumulated liquid (oil) production capacity/actual production days
Wherein the accumulated production liquid (oil) is the sum of the actual production liquid (oil) amounts in a stage, unit, t; actual days on stream is the actual days on stream in the phase, i.e. actual hours on stream/24, units, d.
Step 4, finding out variables in the capacity change, putting the variables into an analysis chart, and calculating the capacity change amount of each capacity;
and 5, developing productivity analysis, finding out main factors influencing the productivity change, and making corresponding adjustment countermeasures in time to ensure the timeliness and the accuracy of analysis in the production of the mine field.
In one embodiment of the present invention, as shown in FIG. 1, FIG. 1 is a flow chart of a well productivity analysis template and method of the present invention.
And 102, selecting 127 production wells of a certain development unit, and analyzing the change reasons of the oil well capacity in 8 months and 7 months.
103, acquiring the production time rate, the production horizon, the working system and the working fluid level data of each oil well in 7 months and 8 months, calculating the daily hydraulic power, the daily oil production capacity and the comprehensive water content of the oil well, and calculating to obtain that the daily oil production capacity of the oil well of a certain development unit in the stage is reduced by 21.9 tons in total.
And step 104, obtaining the regularly changed wells 82 and the capacity ascending and descending wells 45 according to the capacity change trend. And classifying the oil wells with the change of the heavy points according to an analysis template to obtain 5 new wells, 20 measures, 102 old wells and 22.1 tons of daily oil capacity reduction of 0.6 ton, 0.8 ton rise and 22.1 ton reduction respectively. The main reasons for the analyzed productivity change are as follows: (1) the productivity of the old well is reduced by 22.1 tons, wherein 3 tons are reduced regularly. The productivity of the old well is mainly reduced by 5 times of stopping the well due to engineering factors, and the daily oil production capacity is reduced by 22 tons; the yield is reduced by 2 mouths when the oil is damaged, and the daily oil production capacity is reduced by 7 tons; and 3, the daily oil production capacity of the sand outlet well is reduced by 7 tons. The yield of the old well is mainly the treatment effect of the problem well, and the daily oil production capacity is improved by 6.6 tons; the injection-production blending takes effect, and the daily oil production capacity is improved by 1.6 tons; the daily oil capacity is improved by 2.7 tons in the optimization of parameters. (2) New well, measure well, no increment at this stage, as shown in Table 3.
TABLE 3 summary of results of the example applications
In step 105, according to the variation of the capacity at this stage, the following conclusions can be drawn: the unit oil deposit has stable dynamic situation, but still has the following main factors influencing the productivity stability: (1) the yield increasing capability of the new well is insufficient, and the new well is not put into production in this month; (2) measures the capacity of taking over at the stage is insufficient, measures 1 are newly added in the month, and the measure increment is low; (3) the number of production stop wells is increased, the number of operation open wells is small, the number of production stop wells is larger than the number of maintenance open wells, and the treatment speed of the operation wells is to be improved; (4) the sleeve broken well is centralized; (5) the treatment effect of the defective well and the yield increasing effect of the well are good.
Aiming at the problems, the following work is done in the oil reservoir management in the next step: firstly, the storage and arrangement of the workload of taking over new wells and measures are accelerated; secondly, a problem well treatment, injection and production allocation scheme is made around the potential well area; analyzing failure reasons of the production stopping well, optimizing the design of a pipe column, arranging operation power and improving operation timeliness; fourthly, analyzing the sand production reason of the oil well and providing an energy supplement scheme and a sand prevention optimization scheme; fifthly, well analyzing casing failure reasons, strengthening the capital investment of shaft treatment and making an optimal shaft treatment scheme.
The method for analyzing the productivity of the oil well is applied to the mine field, the reason of the productivity change is dissected layer by layer, a model and a method which can analyze the productivity change at any time point and any stage are formed, factors influencing the productivity change are reflected visually, the model is light and easy to understand and operate, and the adjustment direction is indicated for the next step of improving the productivity of the oil well. The oil well productivity analysis method applied to the mine field can be used for carrying out analysis on the single-well variable productivity of the oil well of the development layer system or the development unit, analyzing main factors restricting the productivity change at the stage and finding out a main adjustment direction for improving the productivity of the development layer system or the development unit. The invention forms a single-well productivity classification analysis technical route suitable for different oil reservoir types and different development units. The invention is applied to the analysis of the oil production capacity of any development type oil well, is convenient for technicians and managers to quickly control the production situation, accurately find the adjustment direction and the countermeasure for improving the production capacity, improve the oil reservoir development effect, improve the oil field development quality and benefit and has wide application prospect.
Claims (23)
1. The method for analyzing the productivity of the oil well applied to the mine field is characterized by comprising the following steps of:
step 1, establishing an oil well productivity analysis model and making a chart;
step 2, determining the selection area and the analysis time for capacity analysis;
step 3, calculating the oil well productivity, and carrying out data analysis according to the plate model;
step 4, finding out variables in the capacity change, putting the variables into an analysis chart, and calculating the capacity change amount of each capacity;
and 5, developing productivity analysis, finding out main factors influencing the productivity change, and making corresponding adjustment countermeasures.
2. The method for analyzing the productivity of an oil well applied to a mining field according to claim 1, wherein in step 1, an oil well productivity analysis model is established, which comprises three classes 57, and three classes, namely a new well, a measure and an old well, are determined according to the changes of the production horizon and the production time, and are respectively coded with A, B, C.
3. The method for analyzing the productivity of an oil well applied to a mine site according to claim 2, wherein in the step 1, the new project productivity (A) analyzes the change of the productivity of the new project in the current year, wherein the categories of the productivity increase (A1) are subdivided into 2 items of new project production (A1) and new well production (A1); the productivity decline (A2) category is subdivided into 2 items of new well shut-in (A2) and new well decline (A2), the change conditions of the new well replacement capability and the new well production capability in the current year are analyzed, and the yield increasing, stable production capability and decline rule of new well input are reflected.
4. The method for analyzing the productivity of an oil well used in a mine according to claim 2, wherein, in the step 1, the capacity of the measure well is analyzed by the capacity of the measure well (B), wherein the categories of capacity increase (B1) are divided into measure well opening (B1 r), measure production increase (B1) and measure improvement (B1 r) 3; the productivity decline (B2) category is subdivided into 3 items of measure production stop (B2), measure decrement (B2) and measure change (B2), the replacement capability of the measure well in the current year, the decline condition of the measure well and the production capability of the measure well changed into the changed well across the development layer series are analyzed, and the yield increase, the yield stabilizing capability and the decline rule of the measure well in the current year are reflected.
5. The method for analyzing the productivity of an oil well used in a mining field according to claim 2, wherein in step 1, the old well productivity (C) analyzes the productivity change of the production well which is not changed at the production horizon of the year, and is divided into the productivity increase (C1), the productivity decrease (C2) and the regular change (C3).
6. The method for analyzing the productivity of the oil well applied to the mining field according to claim 5, wherein in the step 1, the productivity-increasing old well (C1) is divided into four categories, namely a well opening (C1-1), an injection and production adjustment effect (C1-2), a working condition well condition management (C1-3) and a maintenance well (C1-4), and reflects the productivity increasing rule brought by the management work of an oil reservoir, a shaft and a water well.
7. The method for analyzing the productivity of the oil well applied to the mine site according to claim 6, wherein in the step 1, the old well opening (C1-1) is subdivided into 2 items of maintenance well opening (C1-1) and direct well opening (C1-1), which reflect the productivity increase caused by the increase of the well opening number and evaluate the utilization effect and benefit of the old well.
8. The method for analyzing the productivity of the oil well applied to the mine site according to claim 6, wherein in the step 1, the injection and production adjustment effect (C1-2) is subdivided into 6 items of water injection direction increasing (C1-2), injection and production allocation (C1-2), water shutoff profile control (C1-2), water well gravity stratification (C1-2), problem water well treatment (C1-2), and under-injection treatment (C1-2), which reflect the productivity increase caused by each work of injection and production adjustment and are used for evaluating the effect and benefit of the injection and production adjustment work.
9. The method for analyzing the productivity of the oil well applied to the mine site according to claim 6, wherein in the step 1, the working condition well condition management (C1-3) is divided into 3 items of well condition treatment (C1-3), working condition treatment (C1-3) and parameter optimization (C1-3), which reflect the recovery of the productivity brought by casing treatment, underground tool repair and parameter optimization, and are used for evaluating the effect and benefit of shaft treatment.
10. The method for analyzing the productivity of the oil well applied to the mine site according to claim 6, wherein in the step 1, the maintenance well (C1-4) is subdivided into 2 items of maintenance recovery (C1-4) and maintenance stimulation (C1-4), wherein the production capacity is increased to the maintenance recovery within 30 days of the maintenance well-opening; and the yield is increased after the well is maintained and opened for 30 days, and the method is used for evaluating the recovery effect of the maintenance well.
11. The method for analyzing the productivity of the oil well applied to the mining field according to claim 5, wherein in the step 1, the productivity-lowering old well (C2) is divided into nine categories of shut-in well (C2-1), imperfect well pattern (C2-2), unbalanced injection-production relationship (C2-3), water well failure (C2-4), reservoir factors (C2-5), well condition and working condition influence (C2-6), maintenance influence (C2-7), daily management (C2-8) and heavy oil tertiary recovery (C2-9).
12. The method for analyzing the productivity of the oil well applied to the mining field according to claim 11, wherein in the step 1, the old well shut-in capacity (C2-1) is used for analyzing the productivity influenced by the well shut-in capacity of the oil well, and the old well shut-in capacity comprises 6 items of oil well transfer (C2-1), engineering factor shut-in (C2-1), casing failure shut-in (C2-1), low benefit shut-in (C2-1), adjacent well drilling (operation) shut-in (C2-1), and other factor shut-in (C2-1), and the oil wells with the factors of well network adjustment, underground pipe column, benefit variation and production operation shut-in are analyzed to reflect the reduction of the productivity brought by the shut-in wells.
13. The method for analyzing the productivity of the oil well used in the mining field according to claim 11, wherein in the step 1, the productivity is reduced due to the imperfect well pattern (C2-2), and the productivity influenced by the poor well pattern perfection degree is analyzed, including 5 items of no perfect potential (C2-2), no perfect potential (C2-2), one-way effect no perfect potential (C2-2), one-way effect perfect potential (C2-2), and bottom water propulsion (C2-2 fifthly), and the productivity change of the oil well with the imperfect well pattern is analyzed to reflect the influence of the current well pattern adaptability on the productivity.
14. The method for analyzing the productivity of the oil well applied to the mine field according to claim 11, wherein in the step 1, the productivity is reduced due to unbalanced injection-production relationship (C2-3), the productivity change caused by the change of the injection-production relationship is analyzed, the productivity change comprises 4 items including long-term streamline fixing (C2-3), injection-production adjustment effective springback (C2-3), streamline changing (C2-3) and interlayer interference (C2-3), and the productivity of the oil well affected by the unbalance of the three fields is analyzed, so that the reduction of the productivity of the oil well with unbalanced injection-production in the stage is reflected.
15. The method for analyzing the productivity of the oil well applied to the mining field according to claim 11, wherein in the step 1, the productivity reduction caused by the failure of the water well (C2-4) is analyzed, the productivity reduction caused by the untimely management of the water well is analyzed, the productivity reduction comprises 4 items including the damage of the water well casing (C2-4), the failure of tools (C2-4), the under-injection of the water well (C2-4) and the over-injection and yield reduction of the water well (C2-4), the productivity of the oil well affected by the abnormal working condition of the water well and the change of the water injection quality is analyzed, and the influence of the water well management in the stage on the production capacity of the oil well is reflected.
16. The method for analyzing the productivity of the oil well applied to the mining field according to claim 11, wherein in the step 1, the productivity is reduced due to reservoir factors (C2-5), the productivity influenced by the change of the reservoir oil recovery index is analyzed, the productivity comprises oil thickness (C2-5) & gt and sand production (C2-5) & gt 2, and the change of the productivity of the oil well due to the oil thickness and the sand production is analyzed to provide a basis for the next treatment.
17. The method for analyzing the productivity of the oil well applied to the mine site according to claim 11, wherein in the step 1, the productivity is reduced due to the influence of the working conditions of the well (C2-6), and the method comprises 4 items of pump pipe leakage yield reduction (C2-6), seal failure yield reduction (C2-6), casing damage yield reduction (C2-6) and parameter adjustment (C2-6), and the method is used for analyzing the changes of the pipe column leakage, the packer failure, the casing deterioration and the parameter adjustment oil well productivity to reflect the productivity reduction caused by the working conditions and the changes of the well conditions.
18. The method for analyzing the productivity of the oil well applied to the mine site according to claim 11, wherein in the step 1, the productivity reduction caused by the maintenance influence (C2-7) comprises 2 items of maintenance waiting to be recovered (C2-7) and maintenance yield reduction (C2-7), wherein the productivity reduction is to be recovered in 30 days after the well is opened; and the productivity is reduced to maintenance yield reduction after the well is opened for 30 days, and the productivity reduction caused by the quality of maintenance operation is reflected.
19. The method for analyzing the productivity of an oil well applied to a mining field according to claim 11, wherein in the step 1, the daily management productivity is decreased (C2-8), and the decrease of the productivity caused by the effects of well washing (C2-8), the effects of water mixing (C2-8) and the maintenance of equipment (C2-8) in the daily management process is analyzed.
20. The method for analyzing the productivity of an oil well applied to a mining field according to claim 11, wherein in the step 1, the productivity of the triple-mining thickened oil is reduced (C2-9), and the reduction of the productivity caused by the return of water in the triple-mining period (C2-9) and the decrement of the thermal recovery period of the thickened oil (C2-9) is analyzed.
21. The method for analyzing the productivity of the oil well applied to the mining field according to claim 5, wherein in the step 1, the well productivity is regularly changed (C3), the yield of other oil wells with regularly changed productivity is analyzed, and the oil well productivity with regularly changed productivity comprises 2 items of fluctuation rising (C3-1) and regular decrement (C3-1), which reflect the change situation of the dynamic situation of the oil reservoir.
22. The method for analyzing the productivity of the oil well in the mining field according to claim 1, wherein in step 2, the selection area and the analysis time for the productivity analysis are determined, the production wells of different development layers or different development units are selected as the analysis objects, and the analysis time is selected and compared with the time point or the time period.
23. The method of claim 1, wherein in step 3, well productivity calculations are performed, including well production horizon alignment, working regime, production time, working fluid level alignment, daily fluid production capacity calculation, daily oil production capacity calculation, and integrated water content calculation,
calculating the formula: daily liquid (oil) production capacity is the accumulated liquid (oil) production capacity/actual production days
Wherein the accumulated production liquid (oil) is the sum of the actual production liquid (oil) amounts in a stage, unit, t;
actual days on stream is the actual days on stream in the phase, i.e. actual hours on stream/24, units, d.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010546184.7A CN111738584B (en) | 2020-06-15 | 2020-06-15 | Method for analyzing oil well productivity applied to mining site |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010546184.7A CN111738584B (en) | 2020-06-15 | 2020-06-15 | Method for analyzing oil well productivity applied to mining site |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111738584A true CN111738584A (en) | 2020-10-02 |
| CN111738584B CN111738584B (en) | 2024-01-30 |
Family
ID=72649307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010546184.7A Active CN111738584B (en) | 2020-06-15 | 2020-06-15 | Method for analyzing oil well productivity applied to mining site |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111738584B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114607350A (en) * | 2020-12-07 | 2022-06-10 | 中国石油天然气股份有限公司 | A Potential Analysis Method for Restoring Production of Idle Wells |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6101447A (en) * | 1998-02-12 | 2000-08-08 | Schlumberger Technology Corporation | Oil and gas reservoir production analysis apparatus and method |
| RU2006135409A (en) * | 2006-10-06 | 2008-04-20 | Тимергалей Кабирович Апасов (RU) | METHOD FOR EVALUATING THE STATE OF DEVELOPMENT OF OIL AND GAS DEPOSITS, INDICATORS OF WELL OPERATION WITH DETERMINING FORECASTS AND OPPORTUNITIES FOR OPTIMIZATION OF SELECTION AND PUMPING, CALCULATION OF SEPARATE RESPONSIBILITY |
| CN102747991A (en) * | 2011-04-22 | 2012-10-24 | 长江大学 | Method for determining single-layer output of commingled producing well |
| CN104951842A (en) * | 2014-03-27 | 2015-09-30 | 中国石油化工股份有限公司 | Novel method for predicting oil field output |
| CN106779131A (en) * | 2015-11-24 | 2017-05-31 | 中国石油化工股份有限公司 | Grease hole evaluates phase cumulative production Forecasting Methodology |
| CN107563899A (en) * | 2016-06-30 | 2018-01-09 | 中国石油天然气股份有限公司 | Oil-gas well productivity prediction method and device |
| CN108664679A (en) * | 2017-04-01 | 2018-10-16 | 中国石油化工股份有限公司 | A kind of oil/gas well creation data analysis method |
| CN108843286A (en) * | 2018-06-21 | 2018-11-20 | 中国石油大港油田勘探开发研究院 | The technical method of well is selected in a kind of Novel layered oil recovery |
| RU2672921C1 (en) * | 2017-11-29 | 2018-11-21 | Публичное акционерное общество "Татнефть" имени В.Д. Шашина | Method of regulating development of oil field |
| US20190251460A1 (en) * | 2018-02-14 | 2019-08-15 | Duc Lam | Method for predicting oil and gas reservoir production |
| CN110778314A (en) * | 2019-10-08 | 2020-02-11 | 中国石油化工股份有限公司 | Reasonable mechanical recovery system efficiency measuring and calculating method based on oil reservoir conditions |
| CN111144542A (en) * | 2019-12-26 | 2020-05-12 | 中国石油大学(北京) | Oil well productivity prediction method, device and equipment |
-
2020
- 2020-06-15 CN CN202010546184.7A patent/CN111738584B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6101447A (en) * | 1998-02-12 | 2000-08-08 | Schlumberger Technology Corporation | Oil and gas reservoir production analysis apparatus and method |
| RU2006135409A (en) * | 2006-10-06 | 2008-04-20 | Тимергалей Кабирович Апасов (RU) | METHOD FOR EVALUATING THE STATE OF DEVELOPMENT OF OIL AND GAS DEPOSITS, INDICATORS OF WELL OPERATION WITH DETERMINING FORECASTS AND OPPORTUNITIES FOR OPTIMIZATION OF SELECTION AND PUMPING, CALCULATION OF SEPARATE RESPONSIBILITY |
| CN102747991A (en) * | 2011-04-22 | 2012-10-24 | 长江大学 | Method for determining single-layer output of commingled producing well |
| CN104951842A (en) * | 2014-03-27 | 2015-09-30 | 中国石油化工股份有限公司 | Novel method for predicting oil field output |
| CN106779131A (en) * | 2015-11-24 | 2017-05-31 | 中国石油化工股份有限公司 | Grease hole evaluates phase cumulative production Forecasting Methodology |
| CN107563899A (en) * | 2016-06-30 | 2018-01-09 | 中国石油天然气股份有限公司 | Oil-gas well productivity prediction method and device |
| CN108664679A (en) * | 2017-04-01 | 2018-10-16 | 中国石油化工股份有限公司 | A kind of oil/gas well creation data analysis method |
| RU2672921C1 (en) * | 2017-11-29 | 2018-11-21 | Публичное акционерное общество "Татнефть" имени В.Д. Шашина | Method of regulating development of oil field |
| US20190251460A1 (en) * | 2018-02-14 | 2019-08-15 | Duc Lam | Method for predicting oil and gas reservoir production |
| CN108843286A (en) * | 2018-06-21 | 2018-11-20 | 中国石油大港油田勘探开发研究院 | The technical method of well is selected in a kind of Novel layered oil recovery |
| CN110778314A (en) * | 2019-10-08 | 2020-02-11 | 中国石油化工股份有限公司 | Reasonable mechanical recovery system efficiency measuring and calculating method based on oil reservoir conditions |
| CN111144542A (en) * | 2019-12-26 | 2020-05-12 | 中国石油大学(北京) | Oil well productivity prediction method, device and equipment |
Non-Patent Citations (3)
| Title |
|---|
| 李玉辉等: "新安边地区延9储层单井产能的分析与预测", 辽宁化工, no. 06 * |
| 檀朝东等: "油气田开发生产管理分析系统软件的研制及应用", 中国石油和化工, no. 06 * |
| 段新国等: "应用多组逐步判别分析优选油气层", 《大庆石油地质与开发 》, vol. 26, no. 1, pages 68 - 71 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114607350A (en) * | 2020-12-07 | 2022-06-10 | 中国石油天然气股份有限公司 | A Potential Analysis Method for Restoring Production of Idle Wells |
| CN114607350B (en) * | 2020-12-07 | 2024-12-27 | 中国石油天然气股份有限公司 | A potential analysis method for resuming production of idle wells |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111738584B (en) | 2024-01-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2672921C1 (en) | Method of regulating development of oil field | |
| CN112836349A (en) | Intelligent decision-making method and system for combined injection and production based on wellbore parameters | |
| CN107944599A (en) | Method for predicting yield of oil-gas horizontal well | |
| Mansour et al. | Evaluation of operational performance of workover rigs activities in oilfields | |
| CN109083641A (en) | Measure job execution effect evaluation method in a kind of underground workover treatment | |
| CN111738584A (en) | Method for analyzing productivity of oil well applied to mine field | |
| US12146374B2 (en) | Active intelligent wellbore pressure control system | |
| CN114417564B (en) | Shale oil horizontal well fracturing parameter optimization method | |
| CN111008775B (en) | Simplified calculation method for useful work based on different structures of mining field | |
| Rosa et al. | Optimizing the location of platforms and manifolds | |
| Xia et al. | Multi-index program decision model for the development of a condensate gas reservoir group and its application | |
| Filimonova et al. | Economic aspects of oil production by gas-lift in comparison with other methods | |
| Zhang | An Effective Way of High-Quality Development of Water Drive in the Late Stage of Ultra-High Water Cut | |
| Zahirović et al. | Application of esp pump with intelligent control system in well x | |
| CN115081694B (en) | Quantitative evaluation method and device for encryption potential of offshore thin interbed sandstone oil field | |
| Akhundov et al. | Determining the estimated machine time and efficiency of equipment at an oil and gas enterprise under conditions of information uncertainty | |
| Friedman | Productivity in crude oil and natural gas production | |
| CA3026694A1 (en) | Advanced control of steam injection network | |
| Sulistyarso et al. | Gas injection optimization to increase oil production at MRA PT. PHE ONWJ | |
| CN112036741B (en) | Shale gas drilling engineering intelligent scheduling method and system | |
| CN117669199A (en) | Time-sharing optimization design method for oil pumping well | |
| CN116861609A (en) | Economic and effective wave and evaluation method for oil reservoir in ultra-high water-cut period | |
| Peng et al. | Research on Economic Evaluation Model and Application of Deep Reservoir Based on Break-even Method | |
| Zhuo | Exploration and application of small well spacing development management mode in oilfield | |
| Li et al. | Application of the Fourth-Generation Injection and Dynamic Monitoring Technology in Huabei Oilfield |
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 |