CN107288571B - Integrated layered gas distribution and pressure measurement process for gas well - Google Patents
Integrated layered gas distribution and pressure measurement process for gas well Download PDFInfo
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- CN107288571B CN107288571B CN201710546263.6A CN201710546263A CN107288571B CN 107288571 B CN107288571 B CN 107288571B CN 201710546263 A CN201710546263 A CN 201710546263A CN 107288571 B CN107288571 B CN 107288571B
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- 238000009826 distribution Methods 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000009530 blood pressure measurement Methods 0.000 title claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 claims abstract description 53
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 32
- 239000010959 steel Substances 0.000 claims abstract description 32
- 238000005065 mining Methods 0.000 claims abstract description 16
- 239000000725 suspension Substances 0.000 claims abstract description 9
- 238000012806 monitoring device Methods 0.000 claims abstract description 8
- 241000251468 Actinopterygii Species 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 238000000605 extraction Methods 0.000 abstract description 2
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 230000003068 static effect Effects 0.000 abstract description 2
- 238000005266 casting Methods 0.000 abstract 3
- 238000007599 discharging Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000008259 solid foam Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
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- Mining & Mineral Resources (AREA)
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Abstract
The invention relates to the technical field of oil field oil extraction engineering, and belongs to an integrated layered gas distribution and pressure measurement process for a gas well. The invention solves the problems that the conventional eccentric production allocator can only allocate one layer by throwing and fishing at one time, the process structure is complex and the operation cost is high. The device consists of a control monitoring device and an underground layered mining pipe column, wherein the control monitoring device consists of a ground controller (1), a steel wire controller (2) and a steel wire operation vehicle (3), and the underground layered mining pipe column consists of an oil pipe (4), a suspension packer (5), a Y341 integrated production allocation packer (6), a Y341 balance packer (7), a ball seat (8) and an integrated layered gas allocation pressure gauge (9); the invention has the advantages of one-time casting and fishing, capability of simultaneously realizing the capacity allocation of two different production layers and the dynamic and static pressure monitoring before and after the mouth of the production layer, simple casting and fishing process, less casting and fishing times and the like.
Description
The technical field is as follows: the invention relates to the technical field of oil field oil extraction engineering, and belongs to an integrated layered gas distribution and pressure measurement process for a gas well.
Background art: at present, an eccentric type separate mining process is generally adopted in a gas field, the process utilizes an eccentric production allocator to realize pressure measurement and production allocation of a single production layer, only one layer can be allocated by one-time throwing and fishing, the process structure is complex, and the operation cost is high. Therefore, the process accurately measures the dynamic pressure parameters of two different production layers by one-time throwing and fishing, provides a basis for capacity allocation between the two layers, realizes simultaneous allocation of the two production layers, is a low-cost and high-efficiency process, and meets the requirements of a gas field on layered mining.
The invention content is as follows: the invention aims to provide an integrated gas well layered gas distribution and pressure measurement process which can realize accurate pressure measurement and production allocation of two different production layers by throwing and fishing at one time.
The invention is realized by the following devices: the device consists of a control monitoring device and an underground separate mining pipe column, wherein the control monitoring device consists of a ground controller, a steel wire controller and a steel wire operation vehicle, and the steel wire controller is connected with the steel wire operation vehicle through a cable and a data line; the underground layered production pipe column consists of an oil pipe, a suspension packer, a Y341 integrated production allocation packer, a Y341 balance packer, a ball seat and an integrated layered gas distribution pressure gauge; the upper end of the ball seat is in threaded connection with the lower joint of the Y341 balance packer, the upper joint of the Y341 balance packer is in threaded connection with an oil pipe, an integrated layered gas distribution pressure gauge is arranged in the Y341 integrated production allocation packer, and the suspension packer, the Y341 integrated production allocation packer and the Y341 balance packer are sequentially in threaded connection through the oil pipe from top to bottom; the invention is realized by the following steps:
a. firstly, connecting underground separate-layer mining pipe columns according to the sequence, wherein an integrated separate-layer gas distribution pressure gauge with a dead nozzle is arranged in a Y341 integrated production distribution packer;
b. after fracturing construction is finished, a connected underground separate-layer mining pipe column is put into the well killing state;
c. setting a packer: after the underground separate-layer mining pipe column is lowered to a preset depth of productivity, the pressure in the oil pipe is increased by 20MPa for three times repeatedly and is stabilized for 10min, and the simultaneous setting of three packers, namely a suspension packer, a Y341 integrated production allocation packer and a Y341 balance packer, is realized;
d. testing the seal of the pipe column and the packer: pressing the ground to form three pressure steps of 10-15-20MPa, respectively recording the changes of the external liquid column pressure of the oil pipe and the setting pressure inside the oil pipe by the integrated layered distribution pressure gauge, pressing the oil sleeve annulus to 5MPa, fishing out the integrated layered distribution pressure gauge by controlling the steel wire operating vehicle by the steel wire controller, and connecting the integrated layered distribution pressure gauge with the ground controller to playback the data in the layered distribution pressure gauge; if the pressure curve in the oil pipe is three pressure steps, comparing the oil pressure with the sleeve pressure value, and judging that the three packers realize setting if the two values are not equal, otherwise, judging that the three packers do not realize setting;
e. measuring the pressure of a producing zone: the continuous oil pipe gas lift restores the production capacity of a gas well, after gas testing operation is finished, the diameter of a corresponding control air nozzle is determined according to a gas testing result, the diameter air nozzle is arranged in an integrated layered distribution pressure measuring instrument, the integrated layered distribution pressure measuring instrument is connected with a steel wire operation vehicle, the integrated layered distribution pressure measuring instrument is put into a Y341 integrated production allocation packer, the well is opened for about 3 days of production, and front-mouth pressure sensors and rear-mouth pressure sensors of the integrated layered distribution pressure measuring instrument respectively measure front-mouth dynamic pressure and rear-mouth dynamic pressure of an upper layer and a lower layer;
f. determining the diameter of an air tap: controlling a steel wire operation vehicle to fish out an integrated layered distribution pressure gauge through a steel wire controller, connecting the integrated layered distribution pressure gauge with a ground controller, replaying ground data to obtain pressure curves before and after mouths of two different production layers, and calculating and adjusting the diameters of corresponding air nozzles of the two production layers in the integrated layered distribution pressure gauge according to a capacity equation;
g. adjusting an air faucet: and (3) installing the air tap determined in the previous step into an integrated layered gas distribution pressure gauge, putting the integrated layered gas distribution pressure gauge into a Y341 integrated production allocation packer through a steel wire operation vehicle, and opening the well for production.
Compared with the prior art, the invention has the following advantages:
1) the integrated production allocation packer disclosed by the invention not only serves as a working cylinder of the integrated layered distribution pressure gauge, but also has the function of sealing an air-isolating layer, two throttling nozzles and three pressure sensors are arranged in the integrated layered distribution pressure gauge, the capacity allocation of two types of reservoirs and the dynamic and static pressure monitoring of the front nozzle and the rear nozzle of a production layer can be simultaneously realized by one-time throwing and fishing, the throwing and fishing process is simple, the operating efficiency is high, and the construction cost is reduced.
2) The invention can be matched with a solid foam discharging agent feeding and vortex water discharging gas production process in an oil pipe.
Description of the drawings: FIG. 1 is a general schematic of the field application of the present invention; FIG. 2 is a schematic diagram of a downhole zonal production string.
The specific implementation mode is as follows: the invention will be further described in detail with reference to the accompanying drawings, and is realized by the following means: the device consists of a control monitoring device and an underground separate mining pipe column, wherein the control monitoring device consists of a ground controller 1, a steel wire controller 2 and a steel wire operation vehicle 3, wherein the steel wire controller 2 is connected with the steel wire operation vehicle 3 through a cable and a data line; the underground layered production pipe column consists of an oil pipe 4, a hanging packer 5, a Y341 integrated production allocation packer 6, a Y341 balance packer 7, a ball seat 8 and an integrated layered gas allocation pressure gauge 9; wherein the upper end of the ball seat 8 is in threaded connection with the lower joint of the Y341 balance packer 7, the upper joint of the Y341 balance packer 7 is in threaded connection with the oil pipe 4, an integrated layered gas distribution pressure gauge 9 is arranged in the Y341 integrated production allocation packer 6, and the suspension packer 5, the Y341 integrated production allocation packer 6 and the Y341 balance packer 7 are sequentially in threaded connection through the oil pipe 4 from top to bottom. The invention is realized by the following steps:
a. firstly, connecting underground separate-layer mining pipe columns according to the sequence, wherein an integrated separate-layer gas distribution pressure measuring instrument 9 with a dead nozzle is arranged in a Y341 integrated production distribution packer 6;
b. after fracturing construction is finished, a connected underground separate-layer mining pipe column is put into the well killing state;
c. setting a packer: after the underground separate-layer mining pipe column is lowered to a preset depth of productivity, 20MPa is pressed in the oil pipe 4, the operation is repeated for three times, and the pressure is stabilized for 10min, so that three packers, namely a suspension packer 5, a Y341 integrated production allocation packer 6 and a Y341 balance packer 7, are simultaneously set;
d. testing the seal of the pipe column and the packer: the ground is pressurized to form three pressure steps of 10-15-20MPa, the integrated layered distribution pressure gauge 9 respectively records the change of the external liquid column pressure of the oil pipe 4 and the internal setting pressure of the oil pipe 4, the oil sleeve annulus is pressurized to 5MPa, the integrated layered distribution pressure gauge 9 is fished out by controlling the steel wire operation vehicle 3 through the steel wire controller 2, and the integrated layered distribution pressure gauge 9 is connected with the ground controller 1 to replay the data in the layered distribution pressure gauge 9; if the pressure curve in the oil pipe 4 is three pressure steps, comparing the oil pressure with the sleeve pressure value, and judging that the three packers realize setting if the two values are not equal, otherwise, judging that the three packers do not realize setting;
e. measuring the pressure of a producing zone: the gas lift of the continuous oil pipe 4 recovers the production capacity of the gas well, after the gas testing operation is finished, the diameter of a corresponding control air nozzle is determined according to the gas testing result, the diameter air nozzle is arranged in an integrated layered gas distribution pressure measuring instrument 9, the integrated layered gas distribution pressure measuring instrument 9 is connected with a steel wire operation vehicle 3, the integrated layered gas distribution pressure measuring instrument 9 is put into a Y341 integrated production allocation packer 6, the well is opened for about 3 days, and the front-mouth pressure sensors and the rear-mouth pressure sensors of the integrated layered gas distribution pressure measuring instrument 9 respectively measure the front-mouth dynamic pressure and the rear-mouth dynamic pressure of the upper layer and the lower layer;
f. determining the diameter of an air tap: controlling the steel wire working vehicle 3 to fish out the integrated layered distribution pressure gauge 9 through the steel wire controller 2, connecting the integrated layered distribution pressure gauge 9 with the ground controller 1, replaying ground data to obtain pressure curves before and after mouths of two different production layers, and calculating and adjusting the diameters of corresponding air mouths of the two production layers in the integrated layered distribution pressure gauge 9 according to a capacity equation;
g. adjusting an air faucet: and (3) the air tap determined in the previous step is arranged in an integrated layered gas distribution pressure gauge 9, the integrated layered gas distribution pressure gauge 9 is thrown into a Y341 integrated production allocation packer 6 through a steel wire operation vehicle 3, and the well is opened for production.
Claims (1)
1. An integrated layered gas distribution and pressure measurement process for a gas well is realized by the following devices:
the device consists of a control monitoring device and an underground separate-layer mining pipe column, wherein the control monitoring device consists of a ground controller (1), a steel wire controller (2) and a steel wire operation vehicle (3), wherein the steel wire controller (2) is connected with the steel wire operation vehicle (3) through a cable and a data line; the underground layered production pipe column consists of an oil pipe (4), a suspension packer (5), a Y341 integrated production allocation packer (6), a Y341 balance packer (7), a ball seat (8) and an integrated layered gas allocation pressure gauge (9); the upper end of the ball seat (8) is in threaded connection with the lower connector of the Y341 balance packer (7), the upper connector of the Y341 balance packer (7) is in threaded connection with the oil pipe (4), an integrated layered gas distribution pressure gauge (9) is arranged in the Y341 integrated production allocation packer (6), and the suspension packer (5), the Y341 integrated production allocation packer (6) and the Y341 balance packer (7) are sequentially in threaded connection through the oil pipe (4) from top to bottom; the method is characterized in that: an integrated layered gas distribution and pressure measurement process for a gas well is realized by the following steps:
a. firstly, connecting underground separate-layer mining pipe columns according to the sequence, wherein an integrated separate-layer gas distribution pressure measuring instrument (9) with a dead nozzle is arranged in a Y341 integrated production distribution packer (6);
b. after fracturing construction is finished, a connected underground separate-layer mining pipe column is put into the well killing state;
c. setting a packer: after the underground separate-layer mining pipe column is lowered to a preset depth of productivity, the pressure in the oil pipe (4) is increased by 20MPa for three times repeatedly and is stabilized for 10min, and the simultaneous setting of three packers, namely a suspension packer (5), a Y341 integrated production allocation packer (6) and a Y341 balance packer (7), is realized;
d. testing the seal of the pipe column and the packer: pressing the ground to form three pressure steps of 10-15-20MPa, respectively recording the external liquid column pressure of the oil pipe (4) and the change of the internal setting pressure of the oil pipe (4) by the integrated layered distribution pressure gauge (9), pressing 5MPa in the oil sleeve annulus, controlling the steel wire operation vehicle (3) by the steel wire controller (2) to fish out the integrated layered distribution pressure gauge (9), and connecting the integrated layered distribution pressure gauge (9) with the ground controller (1) to playback the data in the integrated layered distribution pressure gauge (9); if the pressure curve in the oil pipe (4) is three pressure steps, comparing the oil pressure with the sleeve pressure value, and judging that the three packers realize setting if the two values are not equal, otherwise, judging that the three packers do not realize setting;
e. measuring the pressure of a producing zone: the gas lift of the coiled tubing (4) restores the production capacity of a gas well, after the gas testing operation is finished, the diameter of a corresponding control air nozzle is determined according to the gas testing result, the diameter air nozzle is arranged in an integrated layered gas distribution pressure gauge (9), the integrated layered gas distribution pressure gauge (9) is connected with a steel wire operation vehicle (3), the integrated layered gas distribution pressure gauge (9) is put into a Y341 integrated production allocation packer (6), the well is opened for about 3 days of production, and the front-mouth pressure sensor and the rear-mouth pressure sensor of the integrated layered gas distribution pressure gauge (9) respectively measure the front-mouth dynamic pressure and the rear-mouth dynamic pressure of an upper layer and a lower layer;
f. determining the diameter of an air tap: controlling a steel wire operation vehicle (3) to fish out an integrated layered gas distribution pressure gauge (9) through a steel wire controller (2), connecting the integrated layered gas distribution pressure gauge (9) with a ground controller (1), replaying ground data to obtain pressure curves before and after mouths of two different production layers, and calculating and adjusting the diameters of corresponding air mouths of the two production layers in the integrated layered gas distribution pressure gauge (9) according to a capacity equation;
g. adjusting an air faucet: and (3) the air tap determined in the previous step is arranged in an integrated layered gas distribution pressure gauge (9), the integrated layered gas distribution pressure gauge (9) is thrown into a Y341 integrated production allocation packer (6) through a steel wire operation vehicle (3), and the well is opened for production.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710546263.6A CN107288571B (en) | 2017-07-06 | 2017-07-06 | Integrated layered gas distribution and pressure measurement process for gas well |
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| CN201710546263.6A CN107288571B (en) | 2017-07-06 | 2017-07-06 | Integrated layered gas distribution and pressure measurement process for gas well |
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| CN107288571A CN107288571A (en) | 2017-10-24 |
| CN107288571B true CN107288571B (en) | 2020-08-11 |
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| CN110469281A (en) * | 2019-08-08 | 2019-11-19 | 中国石油天然气股份有限公司 | A kind of hermetic seal completion method and its completion tubular column and methods for using them |
| CN113530503A (en) * | 2021-08-27 | 2021-10-22 | 吕远 | Survey, transfer, adopt layering oil recovery system of integration |
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| WO2009154500A1 (en) * | 2008-06-19 | 2009-12-23 | Schlumberger Canada Limited | Method for optimizing reservoir production analysis |
| CN101769129A (en) * | 2009-12-31 | 2010-07-07 | 刘玉文 | Integral layering gas recovery technology tubular column and application method thereof |
| CN203808984U (en) * | 2013-10-30 | 2014-09-03 | 中国石油天然气股份有限公司 | Testing tubular column for dynamic reserves of dual-layer combined gas recovery well |
| CN105422061A (en) * | 2015-12-09 | 2016-03-23 | 中国石油天然气股份有限公司 | Intelligent testing and adjusting and monitoring technology device and testing and adjusting and monitoring method for separate injection well |
| CN105888650A (en) * | 2016-04-15 | 2016-08-24 | 中国石油天然气股份有限公司 | Gas well storage type integrated layered production allocation pressure gauge |
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- 2017-07-06 CN CN201710546263.6A patent/CN107288571B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009154500A1 (en) * | 2008-06-19 | 2009-12-23 | Schlumberger Canada Limited | Method for optimizing reservoir production analysis |
| CN201218080Y (en) * | 2008-07-08 | 2009-04-08 | 中国石油天然气股份有限公司 | Gas well dividing test novel technique column |
| CN101769129A (en) * | 2009-12-31 | 2010-07-07 | 刘玉文 | Integral layering gas recovery technology tubular column and application method thereof |
| CN203808984U (en) * | 2013-10-30 | 2014-09-03 | 中国石油天然气股份有限公司 | Testing tubular column for dynamic reserves of dual-layer combined gas recovery well |
| CN105422061A (en) * | 2015-12-09 | 2016-03-23 | 中国石油天然气股份有限公司 | Intelligent testing and adjusting and monitoring technology device and testing and adjusting and monitoring method for separate injection well |
| CN105888650A (en) * | 2016-04-15 | 2016-08-24 | 中国石油天然气股份有限公司 | Gas well storage type integrated layered production allocation pressure gauge |
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